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 24 #include "core.h" 25 #include "cfg80211.h" 26 #include "debug.h" 27 #include "hif-ops.h" 28 #include "testmode.h" 29 30 #define RATETAB_ENT(_rate, _rateid, _flags) { \ 31 .bitrate = (_rate), \ 32 .flags = (_flags), \ 33 .hw_value = (_rateid), \ 34 } 35 36 #define CHAN2G(_channel, _freq, _flags) { \ 37 .band = IEEE80211_BAND_2GHZ, \ 38 .hw_value = (_channel), \ 39 .center_freq = (_freq), \ 40 .flags = (_flags), \ 41 .max_antenna_gain = 0, \ 42 .max_power = 30, \ 43 } 44 45 #define CHAN5G(_channel, _flags) { \ 46 .band = IEEE80211_BAND_5GHZ, \ 47 .hw_value = (_channel), \ 48 .center_freq = 5000 + (5 * (_channel)), \ 49 .flags = (_flags), \ 50 .max_antenna_gain = 0, \ 51 .max_power = 30, \ 52 } 53 54 #define DEFAULT_BG_SCAN_PERIOD 60 55 56 struct ath6kl_cfg80211_match_probe_ssid { 57 struct cfg80211_ssid ssid; 58 u8 flag; 59 }; 60 61 static struct ieee80211_rate ath6kl_rates[] = { 62 RATETAB_ENT(10, 0x1, 0), 63 RATETAB_ENT(20, 0x2, 0), 64 RATETAB_ENT(55, 0x4, 0), 65 RATETAB_ENT(110, 0x8, 0), 66 RATETAB_ENT(60, 0x10, 0), 67 RATETAB_ENT(90, 0x20, 0), 68 RATETAB_ENT(120, 0x40, 0), 69 RATETAB_ENT(180, 0x80, 0), 70 RATETAB_ENT(240, 0x100, 0), 71 RATETAB_ENT(360, 0x200, 0), 72 RATETAB_ENT(480, 0x400, 0), 73 RATETAB_ENT(540, 0x800, 0), 74 }; 75 76 #define ath6kl_a_rates (ath6kl_rates + 4) 77 #define ath6kl_a_rates_size 8 78 #define ath6kl_g_rates (ath6kl_rates + 0) 79 #define ath6kl_g_rates_size 12 80 81 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 82 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 83 IEEE80211_HT_CAP_SGI_20 | \ 84 IEEE80211_HT_CAP_SGI_40) 85 86 static struct ieee80211_channel ath6kl_2ghz_channels[] = { 87 CHAN2G(1, 2412, 0), 88 CHAN2G(2, 2417, 0), 89 CHAN2G(3, 2422, 0), 90 CHAN2G(4, 2427, 0), 91 CHAN2G(5, 2432, 0), 92 CHAN2G(6, 2437, 0), 93 CHAN2G(7, 2442, 0), 94 CHAN2G(8, 2447, 0), 95 CHAN2G(9, 2452, 0), 96 CHAN2G(10, 2457, 0), 97 CHAN2G(11, 2462, 0), 98 CHAN2G(12, 2467, 0), 99 CHAN2G(13, 2472, 0), 100 CHAN2G(14, 2484, 0), 101 }; 102 103 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 104 CHAN5G(34, 0), CHAN5G(36, 0), 105 CHAN5G(38, 0), CHAN5G(40, 0), 106 CHAN5G(42, 0), CHAN5G(44, 0), 107 CHAN5G(46, 0), CHAN5G(48, 0), 108 CHAN5G(52, 0), CHAN5G(56, 0), 109 CHAN5G(60, 0), CHAN5G(64, 0), 110 CHAN5G(100, 0), CHAN5G(104, 0), 111 CHAN5G(108, 0), CHAN5G(112, 0), 112 CHAN5G(116, 0), CHAN5G(120, 0), 113 CHAN5G(124, 0), CHAN5G(128, 0), 114 CHAN5G(132, 0), CHAN5G(136, 0), 115 CHAN5G(140, 0), CHAN5G(149, 0), 116 CHAN5G(153, 0), CHAN5G(157, 0), 117 CHAN5G(161, 0), CHAN5G(165, 0), 118 CHAN5G(184, 0), CHAN5G(188, 0), 119 CHAN5G(192, 0), CHAN5G(196, 0), 120 CHAN5G(200, 0), CHAN5G(204, 0), 121 CHAN5G(208, 0), CHAN5G(212, 0), 122 CHAN5G(216, 0), 123 }; 124 125 static struct ieee80211_supported_band ath6kl_band_2ghz = { 126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 127 .channels = ath6kl_2ghz_channels, 128 .n_bitrates = ath6kl_g_rates_size, 129 .bitrates = ath6kl_g_rates, 130 .ht_cap.cap = ath6kl_g_htcap, 131 .ht_cap.ht_supported = true, 132 }; 133 134 static struct ieee80211_supported_band ath6kl_band_5ghz = { 135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 136 .channels = ath6kl_5ghz_a_channels, 137 .n_bitrates = ath6kl_a_rates_size, 138 .bitrates = ath6kl_a_rates, 139 .ht_cap.cap = ath6kl_a_htcap, 140 .ht_cap.ht_supported = true, 141 }; 142 143 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 144 145 /* returns true if scheduled scan was stopped */ 146 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 147 { 148 struct ath6kl *ar = vif->ar; 149 150 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) 151 return false; 152 153 del_timer_sync(&vif->sched_scan_timer); 154 155 if (ar->state == ATH6KL_STATE_RECOVERY) 156 return true; 157 158 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); 159 160 return true; 161 } 162 163 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 164 { 165 struct ath6kl *ar = vif->ar; 166 bool stopped; 167 168 stopped = __ath6kl_cfg80211_sscan_stop(vif); 169 170 if (!stopped) 171 return; 172 173 cfg80211_sched_scan_stopped(ar->wiphy); 174 } 175 176 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 177 enum nl80211_wpa_versions wpa_version) 178 { 179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 180 181 if (!wpa_version) { 182 vif->auth_mode = NONE_AUTH; 183 } else if (wpa_version & NL80211_WPA_VERSION_2) { 184 vif->auth_mode = WPA2_AUTH; 185 } else if (wpa_version & NL80211_WPA_VERSION_1) { 186 vif->auth_mode = WPA_AUTH; 187 } else { 188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 189 return -ENOTSUPP; 190 } 191 192 return 0; 193 } 194 195 static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 196 enum nl80211_auth_type auth_type) 197 { 198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 199 200 switch (auth_type) { 201 case NL80211_AUTHTYPE_OPEN_SYSTEM: 202 vif->dot11_auth_mode = OPEN_AUTH; 203 break; 204 case NL80211_AUTHTYPE_SHARED_KEY: 205 vif->dot11_auth_mode = SHARED_AUTH; 206 break; 207 case NL80211_AUTHTYPE_NETWORK_EAP: 208 vif->dot11_auth_mode = LEAP_AUTH; 209 break; 210 211 case NL80211_AUTHTYPE_AUTOMATIC: 212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 213 break; 214 215 default: 216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 217 return -ENOTSUPP; 218 } 219 220 return 0; 221 } 222 223 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 224 { 225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 227 &vif->grp_crypto_len; 228 229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 230 __func__, cipher, ucast); 231 232 switch (cipher) { 233 case 0: 234 /* our own hack to use value 0 as no crypto used */ 235 *ar_cipher = NONE_CRYPT; 236 *ar_cipher_len = 0; 237 break; 238 case WLAN_CIPHER_SUITE_WEP40: 239 *ar_cipher = WEP_CRYPT; 240 *ar_cipher_len = 5; 241 break; 242 case WLAN_CIPHER_SUITE_WEP104: 243 *ar_cipher = WEP_CRYPT; 244 *ar_cipher_len = 13; 245 break; 246 case WLAN_CIPHER_SUITE_TKIP: 247 *ar_cipher = TKIP_CRYPT; 248 *ar_cipher_len = 0; 249 break; 250 case WLAN_CIPHER_SUITE_CCMP: 251 *ar_cipher = AES_CRYPT; 252 *ar_cipher_len = 0; 253 break; 254 case WLAN_CIPHER_SUITE_SMS4: 255 *ar_cipher = WAPI_CRYPT; 256 *ar_cipher_len = 0; 257 break; 258 default: 259 ath6kl_err("cipher 0x%x not supported\n", cipher); 260 return -ENOTSUPP; 261 } 262 263 return 0; 264 } 265 266 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 267 { 268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 269 270 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 271 if (vif->auth_mode == WPA_AUTH) 272 vif->auth_mode = WPA_PSK_AUTH; 273 else if (vif->auth_mode == WPA2_AUTH) 274 vif->auth_mode = WPA2_PSK_AUTH; 275 } else if (key_mgmt == 0x00409600) { 276 if (vif->auth_mode == WPA_AUTH) 277 vif->auth_mode = WPA_AUTH_CCKM; 278 else if (vif->auth_mode == WPA2_AUTH) 279 vif->auth_mode = WPA2_AUTH_CCKM; 280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 281 vif->auth_mode = NONE_AUTH; 282 } 283 } 284 285 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 286 { 287 struct ath6kl *ar = vif->ar; 288 289 if (!test_bit(WMI_READY, &ar->flag)) { 290 ath6kl_err("wmi is not ready\n"); 291 return false; 292 } 293 294 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 295 ath6kl_err("wlan disabled\n"); 296 return false; 297 } 298 299 return true; 300 } 301 302 static bool ath6kl_is_wpa_ie(const u8 *pos) 303 { 304 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 305 pos[2] == 0x00 && pos[3] == 0x50 && 306 pos[4] == 0xf2 && pos[5] == 0x01; 307 } 308 309 static bool ath6kl_is_rsn_ie(const u8 *pos) 310 { 311 return pos[0] == WLAN_EID_RSN; 312 } 313 314 static bool ath6kl_is_wps_ie(const u8 *pos) 315 { 316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 317 pos[1] >= 4 && 318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 319 pos[5] == 0x04); 320 } 321 322 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 323 size_t ies_len) 324 { 325 struct ath6kl *ar = vif->ar; 326 const u8 *pos; 327 u8 *buf = NULL; 328 size_t len = 0; 329 int ret; 330 331 /* 332 * Clear previously set flag 333 */ 334 335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 336 337 /* 338 * Filter out RSN/WPA IE(s) 339 */ 340 341 if (ies && ies_len) { 342 buf = kmalloc(ies_len, GFP_KERNEL); 343 if (buf == NULL) 344 return -ENOMEM; 345 pos = ies; 346 347 while (pos + 1 < ies + ies_len) { 348 if (pos + 2 + pos[1] > ies + ies_len) 349 break; 350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 351 memcpy(buf + len, pos, 2 + pos[1]); 352 len += 2 + pos[1]; 353 } 354 355 if (ath6kl_is_wps_ie(pos)) 356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 357 358 pos += 2 + pos[1]; 359 } 360 } 361 362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 363 WMI_FRAME_ASSOC_REQ, buf, len); 364 kfree(buf); 365 return ret; 366 } 367 368 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 369 { 370 switch (type) { 371 case NL80211_IFTYPE_STATION: 372 case NL80211_IFTYPE_P2P_CLIENT: 373 *nw_type = INFRA_NETWORK; 374 break; 375 case NL80211_IFTYPE_ADHOC: 376 *nw_type = ADHOC_NETWORK; 377 break; 378 case NL80211_IFTYPE_AP: 379 case NL80211_IFTYPE_P2P_GO: 380 *nw_type = AP_NETWORK; 381 break; 382 default: 383 ath6kl_err("invalid interface type %u\n", type); 384 return -ENOTSUPP; 385 } 386 387 return 0; 388 } 389 390 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 391 u8 *if_idx, u8 *nw_type) 392 { 393 int i; 394 395 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 396 return false; 397 398 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 399 ar->num_vif)) 400 return false; 401 402 if (type == NL80211_IFTYPE_STATION || 403 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 404 for (i = 0; i < ar->vif_max; i++) { 405 if ((ar->avail_idx_map) & BIT(i)) { 406 *if_idx = i; 407 return true; 408 } 409 } 410 } 411 412 if (type == NL80211_IFTYPE_P2P_CLIENT || 413 type == NL80211_IFTYPE_P2P_GO) { 414 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 415 if ((ar->avail_idx_map) & BIT(i)) { 416 *if_idx = i; 417 return true; 418 } 419 } 420 } 421 422 return false; 423 } 424 425 static bool ath6kl_is_tx_pending(struct ath6kl *ar) 426 { 427 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 428 } 429 430 static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, 431 bool enable) 432 { 433 int err; 434 435 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 436 return; 437 438 if (vif->nw_type != INFRA_NETWORK) 439 return; 440 441 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 442 vif->ar->fw_capabilities)) 443 return; 444 445 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 446 enable ? "enable" : "disable"); 447 448 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 449 vif->fw_vif_idx, enable); 450 if (err) 451 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 452 enable ? "enable" : "disable", err); 453 } 454 455 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 456 struct cfg80211_connect_params *sme) 457 { 458 struct ath6kl *ar = ath6kl_priv(dev); 459 struct ath6kl_vif *vif = netdev_priv(dev); 460 int status; 461 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 462 u16 interval; 463 464 ath6kl_cfg80211_sscan_disable(vif); 465 466 vif->sme_state = SME_CONNECTING; 467 468 if (!ath6kl_cfg80211_ready(vif)) 469 return -EIO; 470 471 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 472 ath6kl_err("destroy in progress\n"); 473 return -EBUSY; 474 } 475 476 if (test_bit(SKIP_SCAN, &ar->flag) && 477 ((sme->channel && sme->channel->center_freq == 0) || 478 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 479 ath6kl_err("SkipScan: channel or bssid invalid\n"); 480 return -EINVAL; 481 } 482 483 if (down_interruptible(&ar->sem)) { 484 ath6kl_err("busy, couldn't get access\n"); 485 return -ERESTARTSYS; 486 } 487 488 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 489 ath6kl_err("busy, destroy in progress\n"); 490 up(&ar->sem); 491 return -EBUSY; 492 } 493 494 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 495 /* 496 * sleep until the command queue drains 497 */ 498 wait_event_interruptible_timeout(ar->event_wq, 499 ath6kl_is_tx_pending(ar), 500 WMI_TIMEOUT); 501 if (signal_pending(current)) { 502 ath6kl_err("cmd queue drain timeout\n"); 503 up(&ar->sem); 504 return -EINTR; 505 } 506 } 507 508 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 509 if (status) { 510 up(&ar->sem); 511 return status; 512 } 513 514 if (sme->ie == NULL || sme->ie_len == 0) 515 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 516 517 if (test_bit(CONNECTED, &vif->flags) && 518 vif->ssid_len == sme->ssid_len && 519 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 520 vif->reconnect_flag = true; 521 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 522 vif->req_bssid, 523 vif->ch_hint); 524 525 up(&ar->sem); 526 if (status) { 527 ath6kl_err("wmi_reconnect_cmd failed\n"); 528 return -EIO; 529 } 530 return 0; 531 } else if (vif->ssid_len == sme->ssid_len && 532 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 533 ath6kl_disconnect(vif); 534 } 535 536 memset(vif->ssid, 0, sizeof(vif->ssid)); 537 vif->ssid_len = sme->ssid_len; 538 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 539 540 if (sme->channel) 541 vif->ch_hint = sme->channel->center_freq; 542 543 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 544 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 545 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 546 547 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 548 549 status = ath6kl_set_auth_type(vif, sme->auth_type); 550 if (status) { 551 up(&ar->sem); 552 return status; 553 } 554 555 if (sme->crypto.n_ciphers_pairwise) 556 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 557 else 558 ath6kl_set_cipher(vif, 0, true); 559 560 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 561 562 if (sme->crypto.n_akm_suites) 563 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 564 565 if ((sme->key_len) && 566 (vif->auth_mode == NONE_AUTH) && 567 (vif->prwise_crypto == WEP_CRYPT)) { 568 struct ath6kl_key *key = NULL; 569 570 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 571 ath6kl_err("key index %d out of bounds\n", 572 sme->key_idx); 573 up(&ar->sem); 574 return -ENOENT; 575 } 576 577 key = &vif->keys[sme->key_idx]; 578 key->key_len = sme->key_len; 579 memcpy(key->key, sme->key, key->key_len); 580 key->cipher = vif->prwise_crypto; 581 vif->def_txkey_index = sme->key_idx; 582 583 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 584 vif->prwise_crypto, 585 GROUP_USAGE | TX_USAGE, 586 key->key_len, 587 NULL, 0, 588 key->key, KEY_OP_INIT_VAL, NULL, 589 NO_SYNC_WMIFLAG); 590 } 591 592 if (!ar->usr_bss_filter) { 593 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 594 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 595 ALL_BSS_FILTER, 0) != 0) { 596 ath6kl_err("couldn't set bss filtering\n"); 597 up(&ar->sem); 598 return -EIO; 599 } 600 } 601 602 vif->nw_type = vif->next_mode; 603 604 /* enable enhanced bmiss detection if applicable */ 605 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 606 607 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 608 nw_subtype = SUBTYPE_P2PCLIENT; 609 610 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 611 "%s: connect called with authmode %d dot11 auth %d" 612 " PW crypto %d PW crypto len %d GRP crypto %d" 613 " GRP crypto len %d channel hint %u\n", 614 __func__, 615 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 616 vif->prwise_crypto_len, vif->grp_crypto, 617 vif->grp_crypto_len, vif->ch_hint); 618 619 vif->reconnect_flag = 0; 620 621 if (vif->nw_type == INFRA_NETWORK) { 622 interval = max_t(u16, vif->listen_intvl_t, 623 ATH6KL_MAX_WOW_LISTEN_INTL); 624 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 625 interval, 626 0); 627 if (status) { 628 ath6kl_err("couldn't set listen intervel\n"); 629 up(&ar->sem); 630 return status; 631 } 632 } 633 634 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 635 vif->dot11_auth_mode, vif->auth_mode, 636 vif->prwise_crypto, 637 vif->prwise_crypto_len, 638 vif->grp_crypto, vif->grp_crypto_len, 639 vif->ssid_len, vif->ssid, 640 vif->req_bssid, vif->ch_hint, 641 ar->connect_ctrl_flags, nw_subtype); 642 643 if (sme->bg_scan_period == 0) { 644 /* disable background scan if period is 0 */ 645 sme->bg_scan_period = 0xffff; 646 } else if (sme->bg_scan_period == -1) { 647 /* configure default value if not specified */ 648 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 649 } 650 651 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 652 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 653 654 up(&ar->sem); 655 656 if (status == -EINVAL) { 657 memset(vif->ssid, 0, sizeof(vif->ssid)); 658 vif->ssid_len = 0; 659 ath6kl_err("invalid request\n"); 660 return -ENOENT; 661 } else if (status) { 662 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 663 return -EIO; 664 } 665 666 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 667 ((vif->auth_mode == WPA_PSK_AUTH) || 668 (vif->auth_mode == WPA2_PSK_AUTH))) { 669 mod_timer(&vif->disconnect_timer, 670 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 671 } 672 673 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 674 set_bit(CONNECT_PEND, &vif->flags); 675 676 return 0; 677 } 678 679 static struct cfg80211_bss * 680 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 681 enum network_type nw_type, 682 const u8 *bssid, 683 struct ieee80211_channel *chan, 684 const u8 *beacon_ie, 685 size_t beacon_ie_len) 686 { 687 struct ath6kl *ar = vif->ar; 688 struct cfg80211_bss *bss; 689 u16 cap_mask, cap_val; 690 u8 *ie; 691 692 if (nw_type & ADHOC_NETWORK) { 693 cap_mask = WLAN_CAPABILITY_IBSS; 694 cap_val = WLAN_CAPABILITY_IBSS; 695 } else { 696 cap_mask = WLAN_CAPABILITY_ESS; 697 cap_val = WLAN_CAPABILITY_ESS; 698 } 699 700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 701 vif->ssid, vif->ssid_len, 702 cap_mask, cap_val); 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 vif->sme_state = SME_DISCONNECTED; 850 851 return 0; 852 } 853 854 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 855 u8 *bssid, u8 assoc_resp_len, 856 u8 *assoc_info, u16 proto_reason) 857 { 858 struct ath6kl *ar = vif->ar; 859 860 if (vif->scan_req) { 861 cfg80211_scan_done(vif->scan_req, true); 862 vif->scan_req = NULL; 863 } 864 865 if (vif->nw_type & ADHOC_NETWORK) { 866 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) 867 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 868 "%s: ath6k not in ibss mode\n", __func__); 869 return; 870 } 871 872 if (vif->nw_type & INFRA_NETWORK) { 873 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 874 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 875 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 876 "%s: ath6k not in station mode\n", __func__); 877 return; 878 } 879 } 880 881 clear_bit(CONNECT_PEND, &vif->flags); 882 883 if (vif->sme_state == SME_CONNECTING) { 884 cfg80211_connect_result(vif->ndev, 885 bssid, NULL, 0, 886 NULL, 0, 887 WLAN_STATUS_UNSPECIFIED_FAILURE, 888 GFP_KERNEL); 889 } else if (vif->sme_state == SME_CONNECTED) { 890 cfg80211_disconnected(vif->ndev, proto_reason, 891 NULL, 0, GFP_KERNEL); 892 } 893 894 vif->sme_state = SME_DISCONNECTED; 895 896 /* 897 * Send a disconnect command to target when a disconnect event is 898 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 899 * request from host) to make the firmware stop trying to connect even 900 * after giving disconnect event. There will be one more disconnect 901 * event for this disconnect command with reason code DISCONNECT_CMD 902 * which won't be notified to cfg80211. 903 */ 904 if (reason != DISCONNECT_CMD) 905 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 906 } 907 908 static int ath6kl_set_probed_ssids(struct ath6kl *ar, 909 struct ath6kl_vif *vif, 910 struct cfg80211_ssid *ssids, int n_ssids, 911 struct cfg80211_match_set *match_set, 912 int n_match_ssid) 913 { 914 u8 i, j, index_to_add, ssid_found = false; 915 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 916 917 memset(ssid_list, 0, sizeof(ssid_list)); 918 919 if (n_ssids > MAX_PROBED_SSIDS || 920 n_match_ssid > MAX_PROBED_SSIDS) 921 return -EINVAL; 922 923 for (i = 0; i < n_ssids; i++) { 924 memcpy(ssid_list[i].ssid.ssid, 925 ssids[i].ssid, 926 ssids[i].ssid_len); 927 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 928 929 if (ssids[i].ssid_len) 930 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 931 else 932 ssid_list[i].flag = ANY_SSID_FLAG; 933 934 if (n_match_ssid == 0) 935 ssid_list[i].flag |= MATCH_SSID_FLAG; 936 } 937 938 index_to_add = i; 939 940 for (i = 0; i < n_match_ssid; i++) { 941 ssid_found = false; 942 943 for (j = 0; j < n_ssids; j++) { 944 if ((match_set[i].ssid.ssid_len == 945 ssid_list[j].ssid.ssid_len) && 946 (!memcmp(ssid_list[j].ssid.ssid, 947 match_set[i].ssid.ssid, 948 match_set[i].ssid.ssid_len))) { 949 ssid_list[j].flag |= MATCH_SSID_FLAG; 950 ssid_found = true; 951 break; 952 } 953 } 954 955 if (ssid_found) 956 continue; 957 958 if (index_to_add >= MAX_PROBED_SSIDS) 959 continue; 960 961 ssid_list[index_to_add].ssid.ssid_len = 962 match_set[i].ssid.ssid_len; 963 memcpy(ssid_list[index_to_add].ssid.ssid, 964 match_set[i].ssid.ssid, 965 match_set[i].ssid.ssid_len); 966 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 967 index_to_add++; 968 } 969 970 for (i = 0; i < index_to_add; i++) { 971 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 972 ssid_list[i].flag, 973 ssid_list[i].ssid.ssid_len, 974 ssid_list[i].ssid.ssid); 975 } 976 977 /* Make sure no old entries are left behind */ 978 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 979 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 980 DISABLE_SSID_FLAG, 0, NULL); 981 } 982 983 return 0; 984 } 985 986 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 987 struct cfg80211_scan_request *request) 988 { 989 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 990 struct ath6kl *ar = ath6kl_priv(vif->ndev); 991 s8 n_channels = 0; 992 u16 *channels = NULL; 993 int ret = 0; 994 u32 force_fg_scan = 0; 995 996 if (!ath6kl_cfg80211_ready(vif)) 997 return -EIO; 998 999 ath6kl_cfg80211_sscan_disable(vif); 1000 1001 if (!ar->usr_bss_filter) { 1002 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1003 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1004 ALL_BSS_FILTER, 0); 1005 if (ret) { 1006 ath6kl_err("couldn't set bss filtering\n"); 1007 return ret; 1008 } 1009 } 1010 1011 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 1012 request->n_ssids, NULL, 0); 1013 if (ret < 0) 1014 return ret; 1015 1016 /* this also clears IE in fw if it's not set */ 1017 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1018 WMI_FRAME_PROBE_REQ, 1019 request->ie, request->ie_len); 1020 if (ret) { 1021 ath6kl_err("failed to set Probe Request appie for scan\n"); 1022 return ret; 1023 } 1024 1025 /* 1026 * Scan only the requested channels if the request specifies a set of 1027 * channels. If the list is longer than the target supports, do not 1028 * configure the list and instead, scan all available channels. 1029 */ 1030 if (request->n_channels > 0 && 1031 request->n_channels <= WMI_MAX_CHANNELS) { 1032 u8 i; 1033 1034 n_channels = request->n_channels; 1035 1036 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1037 if (channels == NULL) { 1038 ath6kl_warn("failed to set scan channels, scan all channels"); 1039 n_channels = 0; 1040 } 1041 1042 for (i = 0; i < n_channels; i++) 1043 channels[i] = request->channels[i]->center_freq; 1044 } 1045 1046 if (test_bit(CONNECTED, &vif->flags)) 1047 force_fg_scan = 1; 1048 1049 vif->scan_req = request; 1050 1051 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1052 WMI_LONG_SCAN, force_fg_scan, 1053 false, 0, 1054 ATH6KL_FG_SCAN_INTERVAL, 1055 n_channels, channels, 1056 request->no_cck, 1057 request->rates); 1058 if (ret) { 1059 ath6kl_err("failed to start scan: %d\n", ret); 1060 vif->scan_req = NULL; 1061 } 1062 1063 kfree(channels); 1064 1065 return ret; 1066 } 1067 1068 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1069 { 1070 struct ath6kl *ar = vif->ar; 1071 int i; 1072 1073 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1074 aborted ? " aborted" : ""); 1075 1076 if (!vif->scan_req) 1077 return; 1078 1079 if (aborted) 1080 goto out; 1081 1082 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1083 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1084 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1085 i + 1, DISABLE_SSID_FLAG, 1086 0, NULL); 1087 } 1088 } 1089 1090 out: 1091 cfg80211_scan_done(vif->scan_req, aborted); 1092 vif->scan_req = NULL; 1093 } 1094 1095 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1096 enum wmi_phy_mode mode) 1097 { 1098 struct cfg80211_chan_def chandef; 1099 1100 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1101 "channel switch notify nw_type %d freq %d mode %d\n", 1102 vif->nw_type, freq, mode); 1103 1104 cfg80211_chandef_create(&chandef, 1105 ieee80211_get_channel(vif->ar->wiphy, freq), 1106 (mode == WMI_11G_HT20) ? 1107 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1108 1109 mutex_lock(&vif->wdev.mtx); 1110 cfg80211_ch_switch_notify(vif->ndev, &chandef); 1111 mutex_unlock(&vif->wdev.mtx); 1112 } 1113 1114 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1115 u8 key_index, bool pairwise, 1116 const u8 *mac_addr, 1117 struct key_params *params) 1118 { 1119 struct ath6kl *ar = ath6kl_priv(ndev); 1120 struct ath6kl_vif *vif = netdev_priv(ndev); 1121 struct ath6kl_key *key = NULL; 1122 int seq_len; 1123 u8 key_usage; 1124 u8 key_type; 1125 1126 if (!ath6kl_cfg80211_ready(vif)) 1127 return -EIO; 1128 1129 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1130 if (params->key_len != WMI_KRK_LEN) 1131 return -EINVAL; 1132 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1133 params->key); 1134 } 1135 1136 if (key_index > WMI_MAX_KEY_INDEX) { 1137 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1138 "%s: key index %d out of bounds\n", __func__, 1139 key_index); 1140 return -ENOENT; 1141 } 1142 1143 key = &vif->keys[key_index]; 1144 memset(key, 0, sizeof(struct ath6kl_key)); 1145 1146 if (pairwise) 1147 key_usage = PAIRWISE_USAGE; 1148 else 1149 key_usage = GROUP_USAGE; 1150 1151 seq_len = params->seq_len; 1152 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1153 seq_len > ATH6KL_KEY_SEQ_LEN) { 1154 /* Only first half of the WPI PN is configured */ 1155 seq_len = ATH6KL_KEY_SEQ_LEN; 1156 } 1157 if (params->key_len > WLAN_MAX_KEY_LEN || 1158 seq_len > sizeof(key->seq)) 1159 return -EINVAL; 1160 1161 key->key_len = params->key_len; 1162 memcpy(key->key, params->key, key->key_len); 1163 key->seq_len = seq_len; 1164 memcpy(key->seq, params->seq, key->seq_len); 1165 key->cipher = params->cipher; 1166 1167 switch (key->cipher) { 1168 case WLAN_CIPHER_SUITE_WEP40: 1169 case WLAN_CIPHER_SUITE_WEP104: 1170 key_type = WEP_CRYPT; 1171 break; 1172 1173 case WLAN_CIPHER_SUITE_TKIP: 1174 key_type = TKIP_CRYPT; 1175 break; 1176 1177 case WLAN_CIPHER_SUITE_CCMP: 1178 key_type = AES_CRYPT; 1179 break; 1180 case WLAN_CIPHER_SUITE_SMS4: 1181 key_type = WAPI_CRYPT; 1182 break; 1183 1184 default: 1185 return -ENOTSUPP; 1186 } 1187 1188 if (((vif->auth_mode == WPA_PSK_AUTH) || 1189 (vif->auth_mode == WPA2_PSK_AUTH)) && 1190 (key_usage & GROUP_USAGE)) 1191 del_timer(&vif->disconnect_timer); 1192 1193 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1194 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1195 __func__, key_index, key->key_len, key_type, 1196 key_usage, key->seq_len); 1197 1198 if (vif->nw_type == AP_NETWORK && !pairwise && 1199 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1200 key_type == WAPI_CRYPT)) { 1201 ar->ap_mode_bkey.valid = true; 1202 ar->ap_mode_bkey.key_index = key_index; 1203 ar->ap_mode_bkey.key_type = key_type; 1204 ar->ap_mode_bkey.key_len = key->key_len; 1205 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1206 if (!test_bit(CONNECTED, &vif->flags)) { 1207 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1208 "Delay initial group key configuration until AP mode has been started\n"); 1209 /* 1210 * The key will be set in ath6kl_connect_ap_mode() once 1211 * the connected event is received from the target. 1212 */ 1213 return 0; 1214 } 1215 } 1216 1217 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1218 !test_bit(CONNECTED, &vif->flags)) { 1219 /* 1220 * Store the key locally so that it can be re-configured after 1221 * the AP mode has properly started 1222 * (ath6kl_install_statioc_wep_keys). 1223 */ 1224 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1225 "Delay WEP key configuration until AP mode has been started\n"); 1226 vif->wep_key_list[key_index].key_len = key->key_len; 1227 memcpy(vif->wep_key_list[key_index].key, key->key, 1228 key->key_len); 1229 return 0; 1230 } 1231 1232 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1233 key_type, key_usage, key->key_len, 1234 key->seq, key->seq_len, key->key, 1235 KEY_OP_INIT_VAL, 1236 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1237 } 1238 1239 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1240 u8 key_index, bool pairwise, 1241 const u8 *mac_addr) 1242 { 1243 struct ath6kl *ar = ath6kl_priv(ndev); 1244 struct ath6kl_vif *vif = netdev_priv(ndev); 1245 1246 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1247 1248 if (!ath6kl_cfg80211_ready(vif)) 1249 return -EIO; 1250 1251 if (key_index > WMI_MAX_KEY_INDEX) { 1252 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1253 "%s: key index %d out of bounds\n", __func__, 1254 key_index); 1255 return -ENOENT; 1256 } 1257 1258 if (!vif->keys[key_index].key_len) { 1259 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1260 "%s: index %d is empty\n", __func__, key_index); 1261 return 0; 1262 } 1263 1264 vif->keys[key_index].key_len = 0; 1265 1266 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1267 } 1268 1269 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1270 u8 key_index, bool pairwise, 1271 const u8 *mac_addr, void *cookie, 1272 void (*callback) (void *cookie, 1273 struct key_params *)) 1274 { 1275 struct ath6kl_vif *vif = netdev_priv(ndev); 1276 struct ath6kl_key *key = NULL; 1277 struct key_params params; 1278 1279 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1280 1281 if (!ath6kl_cfg80211_ready(vif)) 1282 return -EIO; 1283 1284 if (key_index > WMI_MAX_KEY_INDEX) { 1285 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1286 "%s: key index %d out of bounds\n", __func__, 1287 key_index); 1288 return -ENOENT; 1289 } 1290 1291 key = &vif->keys[key_index]; 1292 memset(¶ms, 0, sizeof(params)); 1293 params.cipher = key->cipher; 1294 params.key_len = key->key_len; 1295 params.seq_len = key->seq_len; 1296 params.seq = key->seq; 1297 params.key = key->key; 1298 1299 callback(cookie, ¶ms); 1300 1301 return key->key_len ? 0 : -ENOENT; 1302 } 1303 1304 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1305 struct net_device *ndev, 1306 u8 key_index, bool unicast, 1307 bool multicast) 1308 { 1309 struct ath6kl *ar = ath6kl_priv(ndev); 1310 struct ath6kl_vif *vif = netdev_priv(ndev); 1311 struct ath6kl_key *key = NULL; 1312 u8 key_usage; 1313 enum crypto_type key_type = NONE_CRYPT; 1314 1315 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1316 1317 if (!ath6kl_cfg80211_ready(vif)) 1318 return -EIO; 1319 1320 if (key_index > WMI_MAX_KEY_INDEX) { 1321 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1322 "%s: key index %d out of bounds\n", 1323 __func__, key_index); 1324 return -ENOENT; 1325 } 1326 1327 if (!vif->keys[key_index].key_len) { 1328 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1329 __func__, key_index); 1330 return -EINVAL; 1331 } 1332 1333 vif->def_txkey_index = key_index; 1334 key = &vif->keys[vif->def_txkey_index]; 1335 key_usage = GROUP_USAGE; 1336 if (vif->prwise_crypto == WEP_CRYPT) 1337 key_usage |= TX_USAGE; 1338 if (unicast) 1339 key_type = vif->prwise_crypto; 1340 if (multicast) 1341 key_type = vif->grp_crypto; 1342 1343 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1344 return 0; /* Delay until AP mode has been started */ 1345 1346 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1347 vif->def_txkey_index, 1348 key_type, key_usage, 1349 key->key_len, key->seq, key->seq_len, 1350 key->key, 1351 KEY_OP_INIT_VAL, NULL, 1352 SYNC_BOTH_WMIFLAG); 1353 } 1354 1355 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1356 bool ismcast) 1357 { 1358 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1359 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1360 1361 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1362 (ismcast ? NL80211_KEYTYPE_GROUP : 1363 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1364 GFP_KERNEL); 1365 } 1366 1367 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1368 { 1369 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1370 struct ath6kl_vif *vif; 1371 int ret; 1372 1373 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1374 changed); 1375 1376 vif = ath6kl_vif_first(ar); 1377 if (!vif) 1378 return -EIO; 1379 1380 if (!ath6kl_cfg80211_ready(vif)) 1381 return -EIO; 1382 1383 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1384 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1385 if (ret != 0) { 1386 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1387 return -EIO; 1388 } 1389 } 1390 1391 return 0; 1392 } 1393 1394 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1395 struct wireless_dev *wdev, 1396 enum nl80211_tx_power_setting type, 1397 int mbm) 1398 { 1399 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1400 struct ath6kl_vif *vif; 1401 int dbm = MBM_TO_DBM(mbm); 1402 1403 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1404 type, dbm); 1405 1406 vif = ath6kl_vif_first(ar); 1407 if (!vif) 1408 return -EIO; 1409 1410 if (!ath6kl_cfg80211_ready(vif)) 1411 return -EIO; 1412 1413 switch (type) { 1414 case NL80211_TX_POWER_AUTOMATIC: 1415 return 0; 1416 case NL80211_TX_POWER_LIMITED: 1417 ar->tx_pwr = dbm; 1418 break; 1419 default: 1420 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1421 __func__, type); 1422 return -EOPNOTSUPP; 1423 } 1424 1425 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1426 1427 return 0; 1428 } 1429 1430 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1431 struct wireless_dev *wdev, 1432 int *dbm) 1433 { 1434 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1435 struct ath6kl_vif *vif; 1436 1437 vif = ath6kl_vif_first(ar); 1438 if (!vif) 1439 return -EIO; 1440 1441 if (!ath6kl_cfg80211_ready(vif)) 1442 return -EIO; 1443 1444 if (test_bit(CONNECTED, &vif->flags)) { 1445 ar->tx_pwr = 0; 1446 1447 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1448 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1449 return -EIO; 1450 } 1451 1452 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1453 5 * HZ); 1454 1455 if (signal_pending(current)) { 1456 ath6kl_err("target did not respond\n"); 1457 return -EINTR; 1458 } 1459 } 1460 1461 *dbm = ar->tx_pwr; 1462 return 0; 1463 } 1464 1465 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1466 struct net_device *dev, 1467 bool pmgmt, int timeout) 1468 { 1469 struct ath6kl *ar = ath6kl_priv(dev); 1470 struct wmi_power_mode_cmd mode; 1471 struct ath6kl_vif *vif = netdev_priv(dev); 1472 1473 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1474 __func__, pmgmt, timeout); 1475 1476 if (!ath6kl_cfg80211_ready(vif)) 1477 return -EIO; 1478 1479 if (pmgmt) { 1480 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1481 mode.pwr_mode = REC_POWER; 1482 } else { 1483 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1484 mode.pwr_mode = MAX_PERF_POWER; 1485 } 1486 1487 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1488 mode.pwr_mode) != 0) { 1489 ath6kl_err("wmi_powermode_cmd failed\n"); 1490 return -EIO; 1491 } 1492 1493 return 0; 1494 } 1495 1496 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1497 const char *name, 1498 enum nl80211_iftype type, 1499 u32 *flags, 1500 struct vif_params *params) 1501 { 1502 struct ath6kl *ar = wiphy_priv(wiphy); 1503 struct wireless_dev *wdev; 1504 u8 if_idx, nw_type; 1505 1506 if (ar->num_vif == ar->vif_max) { 1507 ath6kl_err("Reached maximum number of supported vif\n"); 1508 return ERR_PTR(-EINVAL); 1509 } 1510 1511 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1512 ath6kl_err("Not a supported interface type\n"); 1513 return ERR_PTR(-EINVAL); 1514 } 1515 1516 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1517 if (!wdev) 1518 return ERR_PTR(-ENOMEM); 1519 1520 ar->num_vif++; 1521 1522 return wdev; 1523 } 1524 1525 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1526 struct wireless_dev *wdev) 1527 { 1528 struct ath6kl *ar = wiphy_priv(wiphy); 1529 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1530 1531 spin_lock_bh(&ar->list_lock); 1532 list_del(&vif->list); 1533 spin_unlock_bh(&ar->list_lock); 1534 1535 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1536 1537 rtnl_lock(); 1538 ath6kl_cfg80211_vif_cleanup(vif); 1539 rtnl_unlock(); 1540 1541 return 0; 1542 } 1543 1544 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1545 struct net_device *ndev, 1546 enum nl80211_iftype type, u32 *flags, 1547 struct vif_params *params) 1548 { 1549 struct ath6kl_vif *vif = netdev_priv(ndev); 1550 int i; 1551 1552 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1553 1554 /* 1555 * Don't bring up p2p on an interface which is not initialized 1556 * for p2p operation where fw does not have capability to switch 1557 * dynamically between non-p2p and p2p type interface. 1558 */ 1559 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1560 vif->ar->fw_capabilities) && 1561 (type == NL80211_IFTYPE_P2P_CLIENT || 1562 type == NL80211_IFTYPE_P2P_GO)) { 1563 if (vif->ar->vif_max == 1) { 1564 if (vif->fw_vif_idx != 0) 1565 return -EINVAL; 1566 else 1567 goto set_iface_type; 1568 } 1569 1570 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1571 if (i == vif->fw_vif_idx) 1572 break; 1573 } 1574 1575 if (i == vif->ar->vif_max) { 1576 ath6kl_err("Invalid interface to bring up P2P\n"); 1577 return -EINVAL; 1578 } 1579 } 1580 1581 /* need to clean up enhanced bmiss detection fw state */ 1582 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1583 1584 set_iface_type: 1585 switch (type) { 1586 case NL80211_IFTYPE_STATION: 1587 case NL80211_IFTYPE_P2P_CLIENT: 1588 vif->next_mode = INFRA_NETWORK; 1589 break; 1590 case NL80211_IFTYPE_ADHOC: 1591 vif->next_mode = ADHOC_NETWORK; 1592 break; 1593 case NL80211_IFTYPE_AP: 1594 case NL80211_IFTYPE_P2P_GO: 1595 vif->next_mode = AP_NETWORK; 1596 break; 1597 default: 1598 ath6kl_err("invalid interface type %u\n", type); 1599 return -EOPNOTSUPP; 1600 } 1601 1602 vif->wdev.iftype = type; 1603 1604 return 0; 1605 } 1606 1607 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1608 struct net_device *dev, 1609 struct cfg80211_ibss_params *ibss_param) 1610 { 1611 struct ath6kl *ar = ath6kl_priv(dev); 1612 struct ath6kl_vif *vif = netdev_priv(dev); 1613 int status; 1614 1615 if (!ath6kl_cfg80211_ready(vif)) 1616 return -EIO; 1617 1618 vif->ssid_len = ibss_param->ssid_len; 1619 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1620 1621 if (ibss_param->chandef.chan) 1622 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1623 1624 if (ibss_param->channel_fixed) { 1625 /* 1626 * TODO: channel_fixed: The channel should be fixed, do not 1627 * search for IBSSs to join on other channels. Target 1628 * firmware does not support this feature, needs to be 1629 * updated. 1630 */ 1631 return -EOPNOTSUPP; 1632 } 1633 1634 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1635 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1636 memcpy(vif->req_bssid, ibss_param->bssid, 1637 sizeof(vif->req_bssid)); 1638 1639 ath6kl_set_wpa_version(vif, 0); 1640 1641 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1642 if (status) 1643 return status; 1644 1645 if (ibss_param->privacy) { 1646 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1647 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1648 } else { 1649 ath6kl_set_cipher(vif, 0, true); 1650 ath6kl_set_cipher(vif, 0, false); 1651 } 1652 1653 vif->nw_type = vif->next_mode; 1654 1655 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1656 "%s: connect called with authmode %d dot11 auth %d" 1657 " PW crypto %d PW crypto len %d GRP crypto %d" 1658 " GRP crypto len %d channel hint %u\n", 1659 __func__, 1660 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1661 vif->prwise_crypto_len, vif->grp_crypto, 1662 vif->grp_crypto_len, vif->ch_hint); 1663 1664 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1665 vif->dot11_auth_mode, vif->auth_mode, 1666 vif->prwise_crypto, 1667 vif->prwise_crypto_len, 1668 vif->grp_crypto, vif->grp_crypto_len, 1669 vif->ssid_len, vif->ssid, 1670 vif->req_bssid, vif->ch_hint, 1671 ar->connect_ctrl_flags, SUBTYPE_NONE); 1672 set_bit(CONNECT_PEND, &vif->flags); 1673 1674 return 0; 1675 } 1676 1677 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1678 struct net_device *dev) 1679 { 1680 struct ath6kl_vif *vif = netdev_priv(dev); 1681 1682 if (!ath6kl_cfg80211_ready(vif)) 1683 return -EIO; 1684 1685 ath6kl_disconnect(vif); 1686 memset(vif->ssid, 0, sizeof(vif->ssid)); 1687 vif->ssid_len = 0; 1688 1689 return 0; 1690 } 1691 1692 static const u32 cipher_suites[] = { 1693 WLAN_CIPHER_SUITE_WEP40, 1694 WLAN_CIPHER_SUITE_WEP104, 1695 WLAN_CIPHER_SUITE_TKIP, 1696 WLAN_CIPHER_SUITE_CCMP, 1697 CCKM_KRK_CIPHER_SUITE, 1698 WLAN_CIPHER_SUITE_SMS4, 1699 }; 1700 1701 static bool is_rate_legacy(s32 rate) 1702 { 1703 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1704 6000, 9000, 12000, 18000, 24000, 1705 36000, 48000, 54000 1706 }; 1707 u8 i; 1708 1709 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1710 if (rate == legacy[i]) 1711 return true; 1712 1713 return false; 1714 } 1715 1716 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1717 { 1718 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1719 52000, 58500, 65000, 72200 1720 }; 1721 u8 i; 1722 1723 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1724 if (rate == ht20[i]) { 1725 if (i == ARRAY_SIZE(ht20) - 1) 1726 /* last rate uses sgi */ 1727 *sgi = true; 1728 else 1729 *sgi = false; 1730 1731 *mcs = i; 1732 return true; 1733 } 1734 } 1735 return false; 1736 } 1737 1738 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1739 { 1740 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1741 81000, 108000, 121500, 135000, 1742 150000 1743 }; 1744 u8 i; 1745 1746 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1747 if (rate == ht40[i]) { 1748 if (i == ARRAY_SIZE(ht40) - 1) 1749 /* last rate uses sgi */ 1750 *sgi = true; 1751 else 1752 *sgi = false; 1753 1754 *mcs = i; 1755 return true; 1756 } 1757 } 1758 1759 return false; 1760 } 1761 1762 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1763 const u8 *mac, struct station_info *sinfo) 1764 { 1765 struct ath6kl *ar = ath6kl_priv(dev); 1766 struct ath6kl_vif *vif = netdev_priv(dev); 1767 long left; 1768 bool sgi; 1769 s32 rate; 1770 int ret; 1771 u8 mcs; 1772 1773 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1774 return -ENOENT; 1775 1776 if (down_interruptible(&ar->sem)) 1777 return -EBUSY; 1778 1779 set_bit(STATS_UPDATE_PEND, &vif->flags); 1780 1781 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1782 1783 if (ret != 0) { 1784 up(&ar->sem); 1785 return -EIO; 1786 } 1787 1788 left = wait_event_interruptible_timeout(ar->event_wq, 1789 !test_bit(STATS_UPDATE_PEND, 1790 &vif->flags), 1791 WMI_TIMEOUT); 1792 1793 up(&ar->sem); 1794 1795 if (left == 0) 1796 return -ETIMEDOUT; 1797 else if (left < 0) 1798 return left; 1799 1800 if (vif->target_stats.rx_byte) { 1801 sinfo->rx_bytes = vif->target_stats.rx_byte; 1802 sinfo->filled |= STATION_INFO_RX_BYTES64; 1803 sinfo->rx_packets = vif->target_stats.rx_pkt; 1804 sinfo->filled |= STATION_INFO_RX_PACKETS; 1805 } 1806 1807 if (vif->target_stats.tx_byte) { 1808 sinfo->tx_bytes = vif->target_stats.tx_byte; 1809 sinfo->filled |= STATION_INFO_TX_BYTES64; 1810 sinfo->tx_packets = vif->target_stats.tx_pkt; 1811 sinfo->filled |= STATION_INFO_TX_PACKETS; 1812 } 1813 1814 sinfo->signal = vif->target_stats.cs_rssi; 1815 sinfo->filled |= STATION_INFO_SIGNAL; 1816 1817 rate = vif->target_stats.tx_ucast_rate; 1818 1819 if (is_rate_legacy(rate)) { 1820 sinfo->txrate.legacy = rate / 100; 1821 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1822 if (sgi) { 1823 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1824 sinfo->txrate.mcs = mcs - 1; 1825 } else { 1826 sinfo->txrate.mcs = mcs; 1827 } 1828 1829 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1830 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1831 if (sgi) { 1832 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1833 sinfo->txrate.mcs = mcs - 1; 1834 } else { 1835 sinfo->txrate.mcs = mcs; 1836 } 1837 1838 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1839 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1840 } else { 1841 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1842 "invalid rate from stats: %d\n", rate); 1843 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1844 return 0; 1845 } 1846 1847 sinfo->filled |= STATION_INFO_TX_BITRATE; 1848 1849 if (test_bit(CONNECTED, &vif->flags) && 1850 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1851 vif->nw_type == INFRA_NETWORK) { 1852 sinfo->filled |= STATION_INFO_BSS_PARAM; 1853 sinfo->bss_param.flags = 0; 1854 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1855 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1856 } 1857 1858 return 0; 1859 } 1860 1861 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1862 struct cfg80211_pmksa *pmksa) 1863 { 1864 struct ath6kl *ar = ath6kl_priv(netdev); 1865 struct ath6kl_vif *vif = netdev_priv(netdev); 1866 1867 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1868 pmksa->pmkid, true); 1869 } 1870 1871 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1872 struct cfg80211_pmksa *pmksa) 1873 { 1874 struct ath6kl *ar = ath6kl_priv(netdev); 1875 struct ath6kl_vif *vif = netdev_priv(netdev); 1876 1877 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1878 pmksa->pmkid, false); 1879 } 1880 1881 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1882 { 1883 struct ath6kl *ar = ath6kl_priv(netdev); 1884 struct ath6kl_vif *vif = netdev_priv(netdev); 1885 1886 if (test_bit(CONNECTED, &vif->flags)) 1887 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1888 vif->bssid, NULL, false); 1889 return 0; 1890 } 1891 1892 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1893 struct cfg80211_wowlan *wow, u32 *filter) 1894 { 1895 int ret, pos; 1896 u8 mask[WOW_PATTERN_SIZE]; 1897 u16 i; 1898 1899 /* Configure the patterns that we received from the user. */ 1900 for (i = 0; i < wow->n_patterns; i++) { 1901 /* 1902 * Convert given nl80211 specific mask value to equivalent 1903 * driver specific mask value and send it to the chip along 1904 * with patterns. For example, If the mask value defined in 1905 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1906 * then equivalent driver specific mask value is 1907 * "0xFF 0x00 0xFF 0x00". 1908 */ 1909 memset(&mask, 0, sizeof(mask)); 1910 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1911 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1912 mask[pos] = 0xFF; 1913 } 1914 /* 1915 * Note: Pattern's offset is not passed as part of wowlan 1916 * parameter from CFG layer. So it's always passed as ZERO 1917 * to the firmware. It means, given WOW patterns are always 1918 * matched from the first byte of received pkt in the firmware. 1919 */ 1920 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1921 vif->fw_vif_idx, WOW_LIST_ID, 1922 wow->patterns[i].pattern_len, 1923 0 /* pattern offset */, 1924 wow->patterns[i].pattern, mask); 1925 if (ret) 1926 return ret; 1927 } 1928 1929 if (wow->disconnect) 1930 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1931 1932 if (wow->magic_pkt) 1933 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1934 1935 if (wow->gtk_rekey_failure) 1936 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1937 1938 if (wow->eap_identity_req) 1939 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1940 1941 if (wow->four_way_handshake) 1942 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1943 1944 return 0; 1945 } 1946 1947 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1948 { 1949 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1950 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1951 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1952 0x00, 0x08 }; 1953 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1954 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1955 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1956 0x00, 0x7f }; 1957 u8 unicst_offset = 0; 1958 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1959 static const u8 arp_mask[] = { 0xff, 0xff }; 1960 u8 arp_offset = 20; 1961 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1962 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1963 u8 discvr_offset = 38; 1964 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1965 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1966 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1970 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1971 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1972 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1973 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1974 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1975 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1976 u8 dhcp_offset = 0; 1977 int ret; 1978 1979 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1980 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1981 vif->fw_vif_idx, WOW_LIST_ID, 1982 sizeof(unicst_pattern), unicst_offset, 1983 unicst_pattern, unicst_mask); 1984 if (ret) { 1985 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1986 return ret; 1987 } 1988 1989 /* Setup all ARP pkt pattern */ 1990 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1991 vif->fw_vif_idx, WOW_LIST_ID, 1992 sizeof(arp_pattern), arp_offset, 1993 arp_pattern, arp_mask); 1994 if (ret) { 1995 ath6kl_err("failed to add WOW ARP pattern\n"); 1996 return ret; 1997 } 1998 1999 /* 2000 * Setup multicast pattern for mDNS 224.0.0.251, 2001 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2002 */ 2003 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2004 vif->fw_vif_idx, WOW_LIST_ID, 2005 sizeof(discvr_pattern), discvr_offset, 2006 discvr_pattern, discvr_mask); 2007 if (ret) { 2008 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2009 return ret; 2010 } 2011 2012 /* Setup all DHCP broadcast pkt pattern */ 2013 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2014 vif->fw_vif_idx, WOW_LIST_ID, 2015 sizeof(dhcp_pattern), dhcp_offset, 2016 dhcp_pattern, dhcp_mask); 2017 if (ret) { 2018 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 2019 return ret; 2020 } 2021 2022 return 0; 2023 } 2024 2025 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2026 { 2027 struct net_device *ndev = vif->ndev; 2028 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2029 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2030 u8 discvr_offset = 38; 2031 u8 mac_mask[ETH_ALEN]; 2032 int ret; 2033 2034 /* Setup unicast pkt pattern */ 2035 memset(mac_mask, 0xff, ETH_ALEN); 2036 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2037 vif->fw_vif_idx, WOW_LIST_ID, 2038 ETH_ALEN, 0, ndev->dev_addr, 2039 mac_mask); 2040 if (ret) { 2041 ath6kl_err("failed to add WOW unicast pattern\n"); 2042 return ret; 2043 } 2044 2045 /* 2046 * Setup multicast pattern for mDNS 224.0.0.251, 2047 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2048 */ 2049 if ((ndev->flags & IFF_ALLMULTI) || 2050 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2051 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2052 vif->fw_vif_idx, WOW_LIST_ID, 2053 sizeof(discvr_pattern), discvr_offset, 2054 discvr_pattern, discvr_mask); 2055 if (ret) { 2056 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2057 return ret; 2058 } 2059 } 2060 2061 return 0; 2062 } 2063 2064 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2065 { 2066 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2067 } 2068 2069 static bool is_ctrl_ep_empty(struct ath6kl *ar) 2070 { 2071 return !ar->tx_pending[ar->ctrl_ep]; 2072 } 2073 2074 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2075 { 2076 int ret, left; 2077 2078 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2079 2080 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2081 ATH6KL_HOST_MODE_ASLEEP); 2082 if (ret) 2083 return ret; 2084 2085 left = wait_event_interruptible_timeout(ar->event_wq, 2086 is_hsleep_mode_procsed(vif), 2087 WMI_TIMEOUT); 2088 if (left == 0) { 2089 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2090 ret = -ETIMEDOUT; 2091 } else if (left < 0) { 2092 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2093 left); 2094 ret = left; 2095 } 2096 2097 if (ar->tx_pending[ar->ctrl_ep]) { 2098 left = wait_event_interruptible_timeout(ar->event_wq, 2099 is_ctrl_ep_empty(ar), 2100 WMI_TIMEOUT); 2101 if (left == 0) { 2102 ath6kl_warn("clear wmi ctrl data timeout\n"); 2103 ret = -ETIMEDOUT; 2104 } else if (left < 0) { 2105 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2106 ret = left; 2107 } 2108 } 2109 2110 return ret; 2111 } 2112 2113 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2114 struct cfg80211_wowlan *wow, u32 *filter) 2115 { 2116 struct ath6kl *ar = vif->ar; 2117 struct in_device *in_dev; 2118 struct in_ifaddr *ifa; 2119 int ret; 2120 u16 i, bmiss_time; 2121 __be32 ips[MAX_IP_ADDRS]; 2122 u8 index = 0; 2123 2124 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2125 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2126 ar->fw_capabilities)) { 2127 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2128 vif->fw_vif_idx, false); 2129 if (ret) 2130 return ret; 2131 } 2132 2133 /* Clear existing WOW patterns */ 2134 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2135 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2136 WOW_LIST_ID, i); 2137 2138 /* 2139 * Skip the default WOW pattern configuration 2140 * if the driver receives any WOW patterns from 2141 * the user. 2142 */ 2143 if (wow) 2144 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2145 else if (vif->nw_type == AP_NETWORK) 2146 ret = ath6kl_wow_ap(ar, vif); 2147 else 2148 ret = ath6kl_wow_sta(ar, vif); 2149 2150 if (ret) 2151 return ret; 2152 2153 netif_stop_queue(vif->ndev); 2154 2155 if (vif->nw_type != AP_NETWORK) { 2156 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2157 ATH6KL_MAX_WOW_LISTEN_INTL, 2158 0); 2159 if (ret) 2160 return ret; 2161 2162 /* Set listen interval x 15 times as bmiss time */ 2163 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2164 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2165 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2166 2167 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2168 bmiss_time, 0); 2169 if (ret) 2170 return ret; 2171 2172 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2173 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2174 0, 0, 0, 0); 2175 if (ret) 2176 return ret; 2177 } 2178 2179 /* Setup own IP addr for ARP agent. */ 2180 in_dev = __in_dev_get_rtnl(vif->ndev); 2181 if (!in_dev) 2182 return 0; 2183 2184 ifa = in_dev->ifa_list; 2185 memset(&ips, 0, sizeof(ips)); 2186 2187 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2188 while (index < MAX_IP_ADDRS && ifa) { 2189 ips[index] = ifa->ifa_local; 2190 ifa = ifa->ifa_next; 2191 index++; 2192 } 2193 2194 if (ifa) { 2195 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2196 return -EINVAL; 2197 } 2198 2199 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2200 if (ret) { 2201 ath6kl_err("fail to setup ip for arp agent\n"); 2202 return ret; 2203 } 2204 2205 return ret; 2206 } 2207 2208 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2209 { 2210 struct ath6kl_vif *first_vif, *vif; 2211 int ret = 0; 2212 u32 filter = 0; 2213 bool connected = false; 2214 2215 /* enter / leave wow suspend on first vif always */ 2216 first_vif = ath6kl_vif_first(ar); 2217 if (WARN_ON(unlikely(!first_vif)) || 2218 !ath6kl_cfg80211_ready(first_vif)) 2219 return -EIO; 2220 2221 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2222 return -EINVAL; 2223 2224 /* install filters for each connected vif */ 2225 spin_lock_bh(&ar->list_lock); 2226 list_for_each_entry(vif, &ar->vif_list, list) { 2227 if (!test_bit(CONNECTED, &vif->flags) || 2228 !ath6kl_cfg80211_ready(vif)) 2229 continue; 2230 connected = true; 2231 2232 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2233 if (ret) 2234 break; 2235 } 2236 spin_unlock_bh(&ar->list_lock); 2237 2238 if (!connected) 2239 return -ENOTCONN; 2240 else if (ret) 2241 return ret; 2242 2243 ar->state = ATH6KL_STATE_SUSPENDING; 2244 2245 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2246 ATH6KL_WOW_MODE_ENABLE, 2247 filter, 2248 WOW_HOST_REQ_DELAY); 2249 if (ret) 2250 return ret; 2251 2252 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2253 } 2254 2255 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2256 { 2257 struct ath6kl *ar = vif->ar; 2258 int ret; 2259 2260 if (vif->nw_type != AP_NETWORK) { 2261 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2262 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2263 if (ret) 2264 return ret; 2265 2266 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2267 vif->listen_intvl_t, 0); 2268 if (ret) 2269 return ret; 2270 2271 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2272 vif->bmiss_time_t, 0); 2273 if (ret) 2274 return ret; 2275 } 2276 2277 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2278 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2279 ar->fw_capabilities)) { 2280 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2281 vif->fw_vif_idx, true); 2282 if (ret) 2283 return ret; 2284 } 2285 2286 netif_wake_queue(vif->ndev); 2287 2288 return 0; 2289 } 2290 2291 static int ath6kl_wow_resume(struct ath6kl *ar) 2292 { 2293 struct ath6kl_vif *vif; 2294 int ret; 2295 2296 vif = ath6kl_vif_first(ar); 2297 if (WARN_ON(unlikely(!vif)) || 2298 !ath6kl_cfg80211_ready(vif)) 2299 return -EIO; 2300 2301 ar->state = ATH6KL_STATE_RESUMING; 2302 2303 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2304 ATH6KL_HOST_MODE_AWAKE); 2305 if (ret) { 2306 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2307 ret); 2308 goto cleanup; 2309 } 2310 2311 spin_lock_bh(&ar->list_lock); 2312 list_for_each_entry(vif, &ar->vif_list, list) { 2313 if (!test_bit(CONNECTED, &vif->flags) || 2314 !ath6kl_cfg80211_ready(vif)) 2315 continue; 2316 ret = ath6kl_wow_resume_vif(vif); 2317 if (ret) 2318 break; 2319 } 2320 spin_unlock_bh(&ar->list_lock); 2321 2322 if (ret) 2323 goto cleanup; 2324 2325 ar->state = ATH6KL_STATE_ON; 2326 return 0; 2327 2328 cleanup: 2329 ar->state = ATH6KL_STATE_WOW; 2330 return ret; 2331 } 2332 2333 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2334 { 2335 struct ath6kl_vif *vif; 2336 int ret; 2337 2338 vif = ath6kl_vif_first(ar); 2339 if (!vif) 2340 return -EIO; 2341 2342 if (!test_bit(WMI_READY, &ar->flag)) { 2343 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2344 return -EIO; 2345 } 2346 2347 ath6kl_cfg80211_stop_all(ar); 2348 2349 /* Save the current power mode before enabling power save */ 2350 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2351 2352 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2353 if (ret) 2354 return ret; 2355 2356 /* Disable WOW mode */ 2357 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2358 ATH6KL_WOW_MODE_DISABLE, 2359 0, 0); 2360 if (ret) 2361 return ret; 2362 2363 /* Flush all non control pkts in TX path */ 2364 ath6kl_tx_data_cleanup(ar); 2365 2366 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2367 if (ret) 2368 return ret; 2369 2370 return 0; 2371 } 2372 2373 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2374 { 2375 struct ath6kl_vif *vif; 2376 int ret; 2377 2378 vif = ath6kl_vif_first(ar); 2379 2380 if (!vif) 2381 return -EIO; 2382 2383 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2384 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2385 ar->wmi->saved_pwr_mode); 2386 if (ret) 2387 return ret; 2388 } 2389 2390 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2391 ATH6KL_HOST_MODE_AWAKE); 2392 if (ret) 2393 return ret; 2394 2395 ar->state = ATH6KL_STATE_ON; 2396 2397 /* Reset scan parameter to default values */ 2398 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2399 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2400 if (ret) 2401 return ret; 2402 2403 return 0; 2404 } 2405 2406 int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2407 enum ath6kl_cfg_suspend_mode mode, 2408 struct cfg80211_wowlan *wow) 2409 { 2410 struct ath6kl_vif *vif; 2411 enum ath6kl_state prev_state; 2412 int ret; 2413 2414 switch (mode) { 2415 case ATH6KL_CFG_SUSPEND_WOW: 2416 2417 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2418 2419 /* Flush all non control pkts in TX path */ 2420 ath6kl_tx_data_cleanup(ar); 2421 2422 prev_state = ar->state; 2423 2424 ret = ath6kl_wow_suspend(ar, wow); 2425 if (ret) { 2426 ar->state = prev_state; 2427 return ret; 2428 } 2429 2430 ar->state = ATH6KL_STATE_WOW; 2431 break; 2432 2433 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2434 2435 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2436 2437 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2438 if (ret) { 2439 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2440 return ret; 2441 } 2442 2443 ar->state = ATH6KL_STATE_DEEPSLEEP; 2444 2445 break; 2446 2447 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2448 2449 ath6kl_cfg80211_stop_all(ar); 2450 2451 if (ar->state == ATH6KL_STATE_OFF) { 2452 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2453 "suspend hw off, no action for cutpower\n"); 2454 break; 2455 } 2456 2457 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2458 2459 ret = ath6kl_init_hw_stop(ar); 2460 if (ret) { 2461 ath6kl_warn("failed to stop hw during suspend: %d\n", 2462 ret); 2463 } 2464 2465 ar->state = ATH6KL_STATE_CUTPOWER; 2466 2467 break; 2468 2469 default: 2470 break; 2471 } 2472 2473 list_for_each_entry(vif, &ar->vif_list, list) 2474 ath6kl_cfg80211_scan_complete_event(vif, true); 2475 2476 return 0; 2477 } 2478 EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2479 2480 int ath6kl_cfg80211_resume(struct ath6kl *ar) 2481 { 2482 int ret; 2483 2484 switch (ar->state) { 2485 case ATH6KL_STATE_WOW: 2486 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2487 2488 ret = ath6kl_wow_resume(ar); 2489 if (ret) { 2490 ath6kl_warn("wow mode resume failed: %d\n", ret); 2491 return ret; 2492 } 2493 2494 break; 2495 2496 case ATH6KL_STATE_DEEPSLEEP: 2497 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2498 2499 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2500 if (ret) { 2501 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2502 return ret; 2503 } 2504 break; 2505 2506 case ATH6KL_STATE_CUTPOWER: 2507 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2508 2509 ret = ath6kl_init_hw_start(ar); 2510 if (ret) { 2511 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2512 return ret; 2513 } 2514 break; 2515 2516 default: 2517 break; 2518 } 2519 2520 return 0; 2521 } 2522 EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2523 2524 #ifdef CONFIG_PM 2525 2526 /* hif layer decides what suspend mode to use */ 2527 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2528 struct cfg80211_wowlan *wow) 2529 { 2530 struct ath6kl *ar = wiphy_priv(wiphy); 2531 2532 ath6kl_recovery_suspend(ar); 2533 2534 return ath6kl_hif_suspend(ar, wow); 2535 } 2536 2537 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2538 { 2539 struct ath6kl *ar = wiphy_priv(wiphy); 2540 int err; 2541 2542 err = ath6kl_hif_resume(ar); 2543 if (err) 2544 return err; 2545 2546 ath6kl_recovery_resume(ar); 2547 2548 return 0; 2549 } 2550 2551 /* 2552 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2553 * both sdio irq wake up and keep power. The target pulls sdio data line to 2554 * wake up the host when WOW pattern matches. This causes sdio irq handler 2555 * is being called in the host side which internally hits ath6kl's RX path. 2556 * 2557 * Since sdio interrupt is not disabled, RX path executes even before 2558 * the host executes the actual resume operation from PM module. 2559 * 2560 * In the current scenario, WOW resume should happen before start processing 2561 * any data from the target. So It's required to perform WOW resume in RX path. 2562 * Ideally we should perform WOW resume only in the actual platform 2563 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2564 * 2565 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2566 */ 2567 void ath6kl_check_wow_status(struct ath6kl *ar) 2568 { 2569 if (ar->state == ATH6KL_STATE_SUSPENDING) 2570 return; 2571 2572 if (ar->state == ATH6KL_STATE_WOW) 2573 ath6kl_cfg80211_resume(ar); 2574 } 2575 2576 #else 2577 2578 void ath6kl_check_wow_status(struct ath6kl *ar) 2579 { 2580 } 2581 #endif 2582 2583 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band, 2584 bool ht_enable) 2585 { 2586 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2587 2588 if (htcap->ht_enable == ht_enable) 2589 return 0; 2590 2591 if (ht_enable) { 2592 /* Set default ht capabilities */ 2593 htcap->ht_enable = true; 2594 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ? 2595 ath6kl_g_htcap : ath6kl_a_htcap; 2596 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2597 } else /* Disable ht */ 2598 memset(htcap, 0, sizeof(*htcap)); 2599 2600 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2601 band, htcap); 2602 } 2603 2604 static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2605 { 2606 struct wiphy *wiphy = vif->ar->wiphy; 2607 int band, ret = 0; 2608 2609 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 2610 if (!wiphy->bands[band]) 2611 continue; 2612 2613 ret = ath6kl_set_htcap(vif, band, 2614 wiphy->bands[band]->ht_cap.ht_supported); 2615 if (ret) 2616 return ret; 2617 } 2618 2619 return ret; 2620 } 2621 2622 static bool ath6kl_is_p2p_ie(const u8 *pos) 2623 { 2624 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2625 pos[2] == 0x50 && pos[3] == 0x6f && 2626 pos[4] == 0x9a && pos[5] == 0x09; 2627 } 2628 2629 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2630 const u8 *ies, size_t ies_len) 2631 { 2632 struct ath6kl *ar = vif->ar; 2633 const u8 *pos; 2634 u8 *buf = NULL; 2635 size_t len = 0; 2636 int ret; 2637 2638 /* 2639 * Filter out P2P IE(s) since they will be included depending on 2640 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2641 */ 2642 2643 if (ies && ies_len) { 2644 buf = kmalloc(ies_len, GFP_KERNEL); 2645 if (buf == NULL) 2646 return -ENOMEM; 2647 pos = ies; 2648 while (pos + 1 < ies + ies_len) { 2649 if (pos + 2 + pos[1] > ies + ies_len) 2650 break; 2651 if (!ath6kl_is_p2p_ie(pos)) { 2652 memcpy(buf + len, pos, 2 + pos[1]); 2653 len += 2 + pos[1]; 2654 } 2655 pos += 2 + pos[1]; 2656 } 2657 } 2658 2659 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2660 WMI_FRAME_PROBE_RESP, buf, len); 2661 kfree(buf); 2662 return ret; 2663 } 2664 2665 static int ath6kl_set_ies(struct ath6kl_vif *vif, 2666 struct cfg80211_beacon_data *info) 2667 { 2668 struct ath6kl *ar = vif->ar; 2669 int res; 2670 2671 /* this also clears IE in fw if it's not set */ 2672 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2673 WMI_FRAME_BEACON, 2674 info->beacon_ies, 2675 info->beacon_ies_len); 2676 if (res) 2677 return res; 2678 2679 /* this also clears IE in fw if it's not set */ 2680 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2681 info->proberesp_ies_len); 2682 if (res) 2683 return res; 2684 2685 /* this also clears IE in fw if it's not set */ 2686 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2687 WMI_FRAME_ASSOC_RESP, 2688 info->assocresp_ies, 2689 info->assocresp_ies_len); 2690 if (res) 2691 return res; 2692 2693 return 0; 2694 } 2695 2696 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2697 u8 *rsn_capab) 2698 { 2699 const u8 *rsn_ie; 2700 size_t rsn_ie_len; 2701 u16 cnt; 2702 2703 if (!beacon->tail) 2704 return -EINVAL; 2705 2706 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2707 if (!rsn_ie) 2708 return -EINVAL; 2709 2710 rsn_ie_len = *(rsn_ie + 1); 2711 /* skip element id and length */ 2712 rsn_ie += 2; 2713 2714 /* skip version */ 2715 if (rsn_ie_len < 2) 2716 return -EINVAL; 2717 rsn_ie += 2; 2718 rsn_ie_len -= 2; 2719 2720 /* skip group cipher suite */ 2721 if (rsn_ie_len < 4) 2722 return 0; 2723 rsn_ie += 4; 2724 rsn_ie_len -= 4; 2725 2726 /* skip pairwise cipher suite */ 2727 if (rsn_ie_len < 2) 2728 return 0; 2729 cnt = get_unaligned_le16(rsn_ie); 2730 rsn_ie += (2 + cnt * 4); 2731 rsn_ie_len -= (2 + cnt * 4); 2732 2733 /* skip akm 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 if (rsn_ie_len < 2) 2741 return 0; 2742 2743 memcpy(rsn_capab, rsn_ie, 2); 2744 2745 return 0; 2746 } 2747 2748 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2749 struct cfg80211_ap_settings *info) 2750 { 2751 struct ath6kl *ar = ath6kl_priv(dev); 2752 struct ath6kl_vif *vif = netdev_priv(dev); 2753 struct ieee80211_mgmt *mgmt; 2754 bool hidden = false; 2755 u8 *ies; 2756 int ies_len; 2757 struct wmi_connect_cmd p; 2758 int res; 2759 int i, ret; 2760 u16 rsn_capab = 0; 2761 int inactivity_timeout = 0; 2762 2763 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2764 2765 if (!ath6kl_cfg80211_ready(vif)) 2766 return -EIO; 2767 2768 if (vif->next_mode != AP_NETWORK) 2769 return -EOPNOTSUPP; 2770 2771 res = ath6kl_set_ies(vif, &info->beacon); 2772 2773 ar->ap_mode_bkey.valid = false; 2774 2775 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, 2776 info->beacon_interval); 2777 2778 if (ret) 2779 ath6kl_warn("Failed to set beacon interval: %d\n", ret); 2780 2781 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2782 info->dtim_period); 2783 2784 /* ignore error, just print a warning and continue normally */ 2785 if (ret) 2786 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2787 2788 if (info->beacon.head == NULL) 2789 return -EINVAL; 2790 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2791 ies = mgmt->u.beacon.variable; 2792 if (ies > info->beacon.head + info->beacon.head_len) 2793 return -EINVAL; 2794 ies_len = info->beacon.head + info->beacon.head_len - ies; 2795 2796 if (info->ssid == NULL) 2797 return -EINVAL; 2798 memcpy(vif->ssid, info->ssid, info->ssid_len); 2799 vif->ssid_len = info->ssid_len; 2800 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2801 hidden = true; 2802 2803 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2804 if (res) 2805 return res; 2806 2807 ret = ath6kl_set_auth_type(vif, info->auth_type); 2808 if (ret) 2809 return ret; 2810 2811 memset(&p, 0, sizeof(p)); 2812 2813 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2814 switch (info->crypto.akm_suites[i]) { 2815 case WLAN_AKM_SUITE_8021X: 2816 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2817 p.auth_mode |= WPA_AUTH; 2818 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2819 p.auth_mode |= WPA2_AUTH; 2820 break; 2821 case WLAN_AKM_SUITE_PSK: 2822 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2823 p.auth_mode |= WPA_PSK_AUTH; 2824 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2825 p.auth_mode |= WPA2_PSK_AUTH; 2826 break; 2827 } 2828 } 2829 if (p.auth_mode == 0) 2830 p.auth_mode = NONE_AUTH; 2831 vif->auth_mode = p.auth_mode; 2832 2833 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2834 switch (info->crypto.ciphers_pairwise[i]) { 2835 case WLAN_CIPHER_SUITE_WEP40: 2836 case WLAN_CIPHER_SUITE_WEP104: 2837 p.prwise_crypto_type |= WEP_CRYPT; 2838 break; 2839 case WLAN_CIPHER_SUITE_TKIP: 2840 p.prwise_crypto_type |= TKIP_CRYPT; 2841 break; 2842 case WLAN_CIPHER_SUITE_CCMP: 2843 p.prwise_crypto_type |= AES_CRYPT; 2844 break; 2845 case WLAN_CIPHER_SUITE_SMS4: 2846 p.prwise_crypto_type |= WAPI_CRYPT; 2847 break; 2848 } 2849 } 2850 if (p.prwise_crypto_type == 0) { 2851 p.prwise_crypto_type = NONE_CRYPT; 2852 ath6kl_set_cipher(vif, 0, true); 2853 } else if (info->crypto.n_ciphers_pairwise == 1) { 2854 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2855 } 2856 2857 switch (info->crypto.cipher_group) { 2858 case WLAN_CIPHER_SUITE_WEP40: 2859 case WLAN_CIPHER_SUITE_WEP104: 2860 p.grp_crypto_type = WEP_CRYPT; 2861 break; 2862 case WLAN_CIPHER_SUITE_TKIP: 2863 p.grp_crypto_type = TKIP_CRYPT; 2864 break; 2865 case WLAN_CIPHER_SUITE_CCMP: 2866 p.grp_crypto_type = AES_CRYPT; 2867 break; 2868 case WLAN_CIPHER_SUITE_SMS4: 2869 p.grp_crypto_type = WAPI_CRYPT; 2870 break; 2871 default: 2872 p.grp_crypto_type = NONE_CRYPT; 2873 break; 2874 } 2875 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2876 2877 p.nw_type = AP_NETWORK; 2878 vif->nw_type = vif->next_mode; 2879 2880 p.ssid_len = vif->ssid_len; 2881 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2882 p.dot11_auth_mode = vif->dot11_auth_mode; 2883 p.ch = cpu_to_le16(info->chandef.chan->center_freq); 2884 2885 /* Enable uAPSD support by default */ 2886 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2887 if (res < 0) 2888 return res; 2889 2890 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2891 p.nw_subtype = SUBTYPE_P2PGO; 2892 } else { 2893 /* 2894 * Due to firmware limitation, it is not possible to 2895 * do P2P mgmt operations in AP mode 2896 */ 2897 p.nw_subtype = SUBTYPE_NONE; 2898 } 2899 2900 if (info->inactivity_timeout) { 2901 inactivity_timeout = info->inactivity_timeout; 2902 2903 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, 2904 ar->fw_capabilities)) 2905 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2906 60); 2907 2908 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2909 inactivity_timeout); 2910 if (res < 0) 2911 return res; 2912 } 2913 2914 if (ath6kl_set_htcap(vif, info->chandef.chan->band, 2915 cfg80211_get_chandef_type(&info->chandef) 2916 != NL80211_CHAN_NO_HT)) 2917 return -EIO; 2918 2919 /* 2920 * Get the PTKSA replay counter in the RSN IE. Supplicant 2921 * will use the RSN IE in M3 message and firmware has to 2922 * advertise the same in beacon/probe response. Send 2923 * the complete RSN IE capability field to firmware 2924 */ 2925 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2926 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2927 ar->fw_capabilities)) { 2928 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2929 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2930 (const u8 *) &rsn_capab, 2931 sizeof(rsn_capab)); 2932 vif->rsn_capab = rsn_capab; 2933 if (res < 0) 2934 return res; 2935 } 2936 2937 memcpy(&vif->profile, &p, sizeof(p)); 2938 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2939 if (res < 0) 2940 return res; 2941 2942 return 0; 2943 } 2944 2945 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2946 struct cfg80211_beacon_data *beacon) 2947 { 2948 struct ath6kl_vif *vif = netdev_priv(dev); 2949 2950 if (!ath6kl_cfg80211_ready(vif)) 2951 return -EIO; 2952 2953 if (vif->next_mode != AP_NETWORK) 2954 return -EOPNOTSUPP; 2955 2956 return ath6kl_set_ies(vif, beacon); 2957 } 2958 2959 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2960 { 2961 struct ath6kl *ar = ath6kl_priv(dev); 2962 struct ath6kl_vif *vif = netdev_priv(dev); 2963 2964 if (vif->nw_type != AP_NETWORK) 2965 return -EOPNOTSUPP; 2966 if (!test_bit(CONNECTED, &vif->flags)) 2967 return -ENOTCONN; 2968 2969 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2970 clear_bit(CONNECTED, &vif->flags); 2971 2972 /* Restore ht setting in firmware */ 2973 return ath6kl_restore_htcap(vif); 2974 } 2975 2976 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2977 2978 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2979 struct station_del_parameters *params) 2980 { 2981 struct ath6kl *ar = ath6kl_priv(dev); 2982 struct ath6kl_vif *vif = netdev_priv(dev); 2983 const u8 *addr = params->mac ? params->mac : bcast_addr; 2984 2985 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2986 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2987 } 2988 2989 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2990 const u8 *mac, 2991 struct station_parameters *params) 2992 { 2993 struct ath6kl *ar = ath6kl_priv(dev); 2994 struct ath6kl_vif *vif = netdev_priv(dev); 2995 int err; 2996 2997 if (vif->nw_type != AP_NETWORK) 2998 return -EOPNOTSUPP; 2999 3000 err = cfg80211_check_station_change(wiphy, params, 3001 CFG80211_STA_AP_MLME_CLIENT); 3002 if (err) 3003 return err; 3004 3005 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3006 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3007 WMI_AP_MLME_AUTHORIZE, mac, 0); 3008 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3009 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3010 } 3011 3012 static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3013 struct wireless_dev *wdev, 3014 struct ieee80211_channel *chan, 3015 unsigned int duration, 3016 u64 *cookie) 3017 { 3018 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3019 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3020 u32 id; 3021 3022 /* TODO: if already pending or ongoing remain-on-channel, 3023 * return -EBUSY */ 3024 id = ++vif->last_roc_id; 3025 if (id == 0) { 3026 /* Do not use 0 as the cookie value */ 3027 id = ++vif->last_roc_id; 3028 } 3029 *cookie = id; 3030 3031 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3032 chan->center_freq, duration); 3033 } 3034 3035 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3036 struct wireless_dev *wdev, 3037 u64 cookie) 3038 { 3039 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3040 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3041 3042 if (cookie != vif->last_roc_id) 3043 return -ENOENT; 3044 vif->last_cancel_roc_id = cookie; 3045 3046 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3047 } 3048 3049 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3050 const u8 *buf, size_t len, 3051 unsigned int freq) 3052 { 3053 struct ath6kl *ar = vif->ar; 3054 const u8 *pos; 3055 u8 *p2p; 3056 int p2p_len; 3057 int ret; 3058 const struct ieee80211_mgmt *mgmt; 3059 3060 mgmt = (const struct ieee80211_mgmt *) buf; 3061 3062 /* Include P2P IE(s) from the frame generated in user space. */ 3063 3064 p2p = kmalloc(len, GFP_KERNEL); 3065 if (p2p == NULL) 3066 return -ENOMEM; 3067 p2p_len = 0; 3068 3069 pos = mgmt->u.probe_resp.variable; 3070 while (pos + 1 < buf + len) { 3071 if (pos + 2 + pos[1] > buf + len) 3072 break; 3073 if (ath6kl_is_p2p_ie(pos)) { 3074 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3075 p2p_len += 2 + pos[1]; 3076 } 3077 pos += 2 + pos[1]; 3078 } 3079 3080 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3081 mgmt->da, p2p, p2p_len); 3082 kfree(p2p); 3083 return ret; 3084 } 3085 3086 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3087 u32 id, 3088 u32 freq, 3089 u32 wait, 3090 const u8 *buf, 3091 size_t len, 3092 bool *more_data, 3093 bool no_cck) 3094 { 3095 struct ieee80211_mgmt *mgmt; 3096 struct ath6kl_sta *conn; 3097 bool is_psq_empty = false; 3098 struct ath6kl_mgmt_buff *mgmt_buf; 3099 size_t mgmt_buf_size; 3100 struct ath6kl *ar = vif->ar; 3101 3102 mgmt = (struct ieee80211_mgmt *) buf; 3103 if (is_multicast_ether_addr(mgmt->da)) 3104 return false; 3105 3106 conn = ath6kl_find_sta(vif, mgmt->da); 3107 if (!conn) 3108 return false; 3109 3110 if (conn->sta_flags & STA_PS_SLEEP) { 3111 if (!(conn->sta_flags & STA_PS_POLLED)) { 3112 /* Queue the frames if the STA is sleeping */ 3113 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3114 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3115 if (!mgmt_buf) 3116 return false; 3117 3118 INIT_LIST_HEAD(&mgmt_buf->list); 3119 mgmt_buf->id = id; 3120 mgmt_buf->freq = freq; 3121 mgmt_buf->wait = wait; 3122 mgmt_buf->len = len; 3123 mgmt_buf->no_cck = no_cck; 3124 memcpy(mgmt_buf->buf, buf, len); 3125 spin_lock_bh(&conn->psq_lock); 3126 is_psq_empty = skb_queue_empty(&conn->psq) && 3127 (conn->mgmt_psq_len == 0); 3128 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3129 conn->mgmt_psq_len++; 3130 spin_unlock_bh(&conn->psq_lock); 3131 3132 /* 3133 * If this is the first pkt getting queued 3134 * for this STA, update the PVB for this 3135 * STA. 3136 */ 3137 if (is_psq_empty) 3138 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3139 conn->aid, 1); 3140 return true; 3141 } 3142 3143 /* 3144 * This tx is because of a PsPoll. 3145 * Determine if MoreData bit has to be set. 3146 */ 3147 spin_lock_bh(&conn->psq_lock); 3148 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3149 *more_data = true; 3150 spin_unlock_bh(&conn->psq_lock); 3151 } 3152 3153 return false; 3154 } 3155 3156 /* Check if SSID length is greater than DIRECT- */ 3157 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3158 { 3159 const struct ieee80211_mgmt *mgmt; 3160 mgmt = (const struct ieee80211_mgmt *) buf; 3161 3162 /* variable[1] contains the SSID tag length */ 3163 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3164 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3165 return true; 3166 } 3167 3168 return false; 3169 } 3170 3171 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3172 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 3173 { 3174 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3175 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3176 struct ieee80211_channel *chan = params->chan; 3177 const u8 *buf = params->buf; 3178 size_t len = params->len; 3179 unsigned int wait = params->wait; 3180 bool no_cck = params->no_cck; 3181 u32 id, freq; 3182 const struct ieee80211_mgmt *mgmt; 3183 bool more_data, queued; 3184 3185 /* default to the current channel, but use the one specified as argument 3186 * if any 3187 */ 3188 freq = vif->ch_hint; 3189 if (chan) 3190 freq = chan->center_freq; 3191 3192 /* never send freq zero to the firmware */ 3193 if (WARN_ON(freq == 0)) 3194 return -EINVAL; 3195 3196 mgmt = (const struct ieee80211_mgmt *) buf; 3197 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3198 ieee80211_is_probe_resp(mgmt->frame_control) && 3199 ath6kl_is_p2p_go_ssid(buf, len)) { 3200 /* 3201 * Send Probe Response frame in GO mode using a separate WMI 3202 * command to allow the target to fill in the generic IEs. 3203 */ 3204 *cookie = 0; /* TX status not supported */ 3205 return ath6kl_send_go_probe_resp(vif, buf, len, freq); 3206 } 3207 3208 id = vif->send_action_id++; 3209 if (id == 0) { 3210 /* 3211 * 0 is a reserved value in the WMI command and shall not be 3212 * used for the command. 3213 */ 3214 id = vif->send_action_id++; 3215 } 3216 3217 *cookie = id; 3218 3219 /* AP mode Power saving processing */ 3220 if (vif->nw_type == AP_NETWORK) { 3221 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len, 3222 &more_data, no_cck); 3223 if (queued) 3224 return 0; 3225 } 3226 3227 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq, 3228 wait, buf, len, no_cck); 3229 } 3230 3231 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3232 struct wireless_dev *wdev, 3233 u16 frame_type, bool reg) 3234 { 3235 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3236 3237 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3238 __func__, frame_type, reg); 3239 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3240 /* 3241 * Note: This notification callback is not allowed to sleep, so 3242 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3243 * hardcode target to report Probe Request frames all the time. 3244 */ 3245 vif->probe_req_report = reg; 3246 } 3247 } 3248 3249 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3250 struct net_device *dev, 3251 struct cfg80211_sched_scan_request *request) 3252 { 3253 struct ath6kl *ar = ath6kl_priv(dev); 3254 struct ath6kl_vif *vif = netdev_priv(dev); 3255 u16 interval; 3256 int ret, rssi_thold; 3257 int n_match_sets = request->n_match_sets; 3258 3259 /* 3260 * If there's a matchset w/o an SSID, then assume it's just for 3261 * the RSSI (nothing else is currently supported) and ignore it. 3262 * The device only supports a global RSSI filter that we set below. 3263 */ 3264 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len) 3265 n_match_sets = 0; 3266 3267 if (ar->state != ATH6KL_STATE_ON) 3268 return -EIO; 3269 3270 if (vif->sme_state != SME_DISCONNECTED) 3271 return -EBUSY; 3272 3273 ath6kl_cfg80211_scan_complete_event(vif, true); 3274 3275 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3276 request->n_ssids, 3277 request->match_sets, 3278 n_match_sets); 3279 if (ret < 0) 3280 return ret; 3281 3282 if (!n_match_sets) { 3283 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3284 ALL_BSS_FILTER, 0); 3285 if (ret < 0) 3286 return ret; 3287 } else { 3288 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3289 MATCHED_SSID_FILTER, 0); 3290 if (ret < 0) 3291 return ret; 3292 } 3293 3294 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3295 ar->fw_capabilities)) { 3296 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3297 rssi_thold = 0; 3298 else if (request->min_rssi_thold < -127) 3299 rssi_thold = -127; 3300 else 3301 rssi_thold = request->min_rssi_thold; 3302 3303 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3304 rssi_thold); 3305 if (ret) { 3306 ath6kl_err("failed to set RSSI threshold for scan\n"); 3307 return ret; 3308 } 3309 } 3310 3311 /* fw uses seconds, also make sure that it's >0 */ 3312 interval = max_t(u16, 1, request->interval / 1000); 3313 3314 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3315 interval, interval, 3316 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3317 3318 /* this also clears IE in fw if it's not set */ 3319 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3320 WMI_FRAME_PROBE_REQ, 3321 request->ie, request->ie_len); 3322 if (ret) { 3323 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3324 ret); 3325 return ret; 3326 } 3327 3328 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3329 if (ret) 3330 return ret; 3331 3332 set_bit(SCHED_SCANNING, &vif->flags); 3333 3334 return 0; 3335 } 3336 3337 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3338 struct net_device *dev) 3339 { 3340 struct ath6kl_vif *vif = netdev_priv(dev); 3341 bool stopped; 3342 3343 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3344 3345 if (!stopped) 3346 return -EIO; 3347 3348 return 0; 3349 } 3350 3351 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3352 struct net_device *dev, 3353 const u8 *addr, 3354 const struct cfg80211_bitrate_mask *mask) 3355 { 3356 struct ath6kl *ar = ath6kl_priv(dev); 3357 struct ath6kl_vif *vif = netdev_priv(dev); 3358 3359 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3360 mask); 3361 } 3362 3363 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3364 struct net_device *dev, 3365 u32 rate, u32 pkts, u32 intvl) 3366 { 3367 struct ath6kl *ar = ath6kl_priv(dev); 3368 struct ath6kl_vif *vif = netdev_priv(dev); 3369 3370 if (vif->nw_type != INFRA_NETWORK || 3371 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3372 return -EOPNOTSUPP; 3373 3374 if (vif->sme_state != SME_CONNECTED) 3375 return -ENOTCONN; 3376 3377 /* save this since the firmware won't report the interval */ 3378 vif->txe_intvl = intvl; 3379 3380 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3381 rate, pkts, intvl); 3382 } 3383 3384 static const struct ieee80211_txrx_stypes 3385 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3386 [NL80211_IFTYPE_STATION] = { 3387 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3388 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3389 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3390 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3391 }, 3392 [NL80211_IFTYPE_AP] = { 3393 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3394 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3395 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3396 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3397 }, 3398 [NL80211_IFTYPE_P2P_CLIENT] = { 3399 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3400 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3401 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3402 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3403 }, 3404 [NL80211_IFTYPE_P2P_GO] = { 3405 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3406 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3407 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3408 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3409 }, 3410 }; 3411 3412 static struct cfg80211_ops ath6kl_cfg80211_ops = { 3413 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3414 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3415 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3416 .scan = ath6kl_cfg80211_scan, 3417 .connect = ath6kl_cfg80211_connect, 3418 .disconnect = ath6kl_cfg80211_disconnect, 3419 .add_key = ath6kl_cfg80211_add_key, 3420 .get_key = ath6kl_cfg80211_get_key, 3421 .del_key = ath6kl_cfg80211_del_key, 3422 .set_default_key = ath6kl_cfg80211_set_default_key, 3423 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3424 .set_tx_power = ath6kl_cfg80211_set_txpower, 3425 .get_tx_power = ath6kl_cfg80211_get_txpower, 3426 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3427 .join_ibss = ath6kl_cfg80211_join_ibss, 3428 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3429 .get_station = ath6kl_get_station, 3430 .set_pmksa = ath6kl_set_pmksa, 3431 .del_pmksa = ath6kl_del_pmksa, 3432 .flush_pmksa = ath6kl_flush_pmksa, 3433 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3434 #ifdef CONFIG_PM 3435 .suspend = __ath6kl_cfg80211_suspend, 3436 .resume = __ath6kl_cfg80211_resume, 3437 #endif 3438 .start_ap = ath6kl_start_ap, 3439 .change_beacon = ath6kl_change_beacon, 3440 .stop_ap = ath6kl_stop_ap, 3441 .del_station = ath6kl_del_station, 3442 .change_station = ath6kl_change_station, 3443 .remain_on_channel = ath6kl_remain_on_channel, 3444 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3445 .mgmt_tx = ath6kl_mgmt_tx, 3446 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3447 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3448 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3449 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3450 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3451 }; 3452 3453 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3454 { 3455 ath6kl_cfg80211_sscan_disable(vif); 3456 3457 switch (vif->sme_state) { 3458 case SME_DISCONNECTED: 3459 break; 3460 case SME_CONNECTING: 3461 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3462 NULL, 0, 3463 WLAN_STATUS_UNSPECIFIED_FAILURE, 3464 GFP_KERNEL); 3465 break; 3466 case SME_CONNECTED: 3467 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3468 break; 3469 } 3470 3471 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3472 (test_bit(CONNECTED, &vif->flags) || 3473 test_bit(CONNECT_PEND, &vif->flags))) 3474 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3475 3476 vif->sme_state = SME_DISCONNECTED; 3477 clear_bit(CONNECTED, &vif->flags); 3478 clear_bit(CONNECT_PEND, &vif->flags); 3479 3480 /* Stop netdev queues, needed during recovery */ 3481 netif_stop_queue(vif->ndev); 3482 netif_carrier_off(vif->ndev); 3483 3484 /* disable scanning */ 3485 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3486 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3487 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3488 ath6kl_warn("failed to disable scan during stop\n"); 3489 3490 ath6kl_cfg80211_scan_complete_event(vif, true); 3491 } 3492 3493 void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3494 { 3495 struct ath6kl_vif *vif; 3496 3497 vif = ath6kl_vif_first(ar); 3498 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3499 /* save the current power mode before enabling power save */ 3500 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3501 3502 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3503 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3504 return; 3505 } 3506 3507 /* 3508 * FIXME: we should take ar->list_lock to protect changes in the 3509 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3510 * sleeps. 3511 */ 3512 list_for_each_entry(vif, &ar->vif_list, list) 3513 ath6kl_cfg80211_stop(vif); 3514 } 3515 3516 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3517 struct regulatory_request *request) 3518 { 3519 struct ath6kl *ar = wiphy_priv(wiphy); 3520 u32 rates[IEEE80211_NUM_BANDS]; 3521 int ret, i; 3522 3523 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3524 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3525 request->alpha2[0], request->alpha2[1], 3526 request->intersect ? " intersect" : "", 3527 request->processed ? " processed" : "", 3528 request->initiator, request->user_reg_hint_type); 3529 3530 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3531 return; 3532 3533 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3534 if (ret) { 3535 ath6kl_err("failed to set regdomain: %d\n", ret); 3536 return; 3537 } 3538 3539 /* 3540 * Firmware will apply the regdomain change only after a scan is 3541 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3542 * changed. 3543 */ 3544 3545 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 3546 if (wiphy->bands[i]) 3547 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3548 3549 3550 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3551 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3552 0, NULL, false, rates); 3553 if (ret) { 3554 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3555 ret); 3556 return; 3557 } 3558 } 3559 3560 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3561 { 3562 vif->aggr_cntxt = aggr_init(vif); 3563 if (!vif->aggr_cntxt) { 3564 ath6kl_err("failed to initialize aggr\n"); 3565 return -ENOMEM; 3566 } 3567 3568 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3569 (unsigned long) vif->ndev); 3570 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3571 (unsigned long) vif); 3572 3573 set_bit(WMM_ENABLED, &vif->flags); 3574 spin_lock_init(&vif->if_lock); 3575 3576 INIT_LIST_HEAD(&vif->mc_filter); 3577 3578 return 0; 3579 } 3580 3581 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready) 3582 { 3583 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3584 bool discon_issued; 3585 3586 netif_stop_queue(vif->ndev); 3587 3588 clear_bit(WLAN_ENABLED, &vif->flags); 3589 3590 if (wmi_ready) { 3591 discon_issued = test_bit(CONNECTED, &vif->flags) || 3592 test_bit(CONNECT_PEND, &vif->flags); 3593 ath6kl_disconnect(vif); 3594 del_timer(&vif->disconnect_timer); 3595 3596 if (discon_issued) 3597 ath6kl_disconnect_event(vif, DISCONNECT_CMD, 3598 (vif->nw_type & AP_NETWORK) ? 3599 bcast_mac : vif->bssid, 3600 0, NULL, 0); 3601 } 3602 3603 if (vif->scan_req) { 3604 cfg80211_scan_done(vif->scan_req, true); 3605 vif->scan_req = NULL; 3606 } 3607 3608 /* need to clean up enhanced bmiss detection fw state */ 3609 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 3610 } 3611 3612 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3613 { 3614 struct ath6kl *ar = vif->ar; 3615 struct ath6kl_mc_filter *mc_filter, *tmp; 3616 3617 aggr_module_destroy(vif->aggr_cntxt); 3618 3619 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3620 3621 if (vif->nw_type == ADHOC_NETWORK) 3622 ar->ibss_if_active = false; 3623 3624 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3625 list_del(&mc_filter->list); 3626 kfree(mc_filter); 3627 } 3628 3629 unregister_netdevice(vif->ndev); 3630 3631 ar->num_vif--; 3632 } 3633 3634 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3635 enum nl80211_iftype type, 3636 u8 fw_vif_idx, u8 nw_type) 3637 { 3638 struct net_device *ndev; 3639 struct ath6kl_vif *vif; 3640 3641 ndev = alloc_netdev(sizeof(*vif), name, NET_NAME_UNKNOWN, ether_setup); 3642 if (!ndev) 3643 return NULL; 3644 3645 vif = netdev_priv(ndev); 3646 ndev->ieee80211_ptr = &vif->wdev; 3647 vif->wdev.wiphy = ar->wiphy; 3648 vif->ar = ar; 3649 vif->ndev = ndev; 3650 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3651 vif->wdev.netdev = ndev; 3652 vif->wdev.iftype = type; 3653 vif->fw_vif_idx = fw_vif_idx; 3654 vif->nw_type = nw_type; 3655 vif->next_mode = nw_type; 3656 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3657 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3658 vif->bg_scan_period = 0; 3659 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3660 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3661 3662 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3663 if (fw_vif_idx != 0) { 3664 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3665 0x2; 3666 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3667 ar->fw_capabilities)) 3668 ndev->dev_addr[4] ^= 0x80; 3669 } 3670 3671 init_netdev(ndev); 3672 3673 ath6kl_init_control_info(vif); 3674 3675 if (ath6kl_cfg80211_vif_init(vif)) 3676 goto err; 3677 3678 if (register_netdevice(ndev)) 3679 goto err; 3680 3681 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3682 vif->sme_state = SME_DISCONNECTED; 3683 set_bit(WLAN_ENABLED, &vif->flags); 3684 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3685 3686 if (type == NL80211_IFTYPE_ADHOC) 3687 ar->ibss_if_active = true; 3688 3689 spin_lock_bh(&ar->list_lock); 3690 list_add_tail(&vif->list, &ar->vif_list); 3691 spin_unlock_bh(&ar->list_lock); 3692 3693 return &vif->wdev; 3694 3695 err: 3696 aggr_module_destroy(vif->aggr_cntxt); 3697 free_netdev(ndev); 3698 return NULL; 3699 } 3700 3701 #ifdef CONFIG_PM 3702 static const struct wiphy_wowlan_support ath6kl_wowlan_support = { 3703 .flags = WIPHY_WOWLAN_MAGIC_PKT | 3704 WIPHY_WOWLAN_DISCONNECT | 3705 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3706 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3707 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3708 WIPHY_WOWLAN_4WAY_HANDSHAKE, 3709 .n_patterns = WOW_MAX_FILTERS_PER_LIST, 3710 .pattern_min_len = 1, 3711 .pattern_max_len = WOW_PATTERN_SIZE, 3712 }; 3713 #endif 3714 3715 int ath6kl_cfg80211_init(struct ath6kl *ar) 3716 { 3717 struct wiphy *wiphy = ar->wiphy; 3718 bool band_2gig = false, band_5gig = false, ht = false; 3719 int ret; 3720 3721 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3722 3723 wiphy->max_remain_on_channel_duration = 5000; 3724 3725 /* set device pointer for wiphy */ 3726 set_wiphy_dev(wiphy, ar->dev); 3727 3728 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3729 BIT(NL80211_IFTYPE_ADHOC) | 3730 BIT(NL80211_IFTYPE_AP); 3731 if (ar->p2p) { 3732 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3733 BIT(NL80211_IFTYPE_P2P_CLIENT); 3734 } 3735 3736 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) && 3737 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3738 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3739 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3740 } 3741 3742 /* max num of ssids that can be probed during scanning */ 3743 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3744 3745 /* max num of ssids that can be matched after scan */ 3746 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3747 ar->fw_capabilities)) 3748 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3749 3750 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3751 switch (ar->hw.cap) { 3752 case WMI_11AN_CAP: 3753 ht = true; 3754 case WMI_11A_CAP: 3755 band_5gig = true; 3756 break; 3757 case WMI_11GN_CAP: 3758 ht = true; 3759 case WMI_11G_CAP: 3760 band_2gig = true; 3761 break; 3762 case WMI_11AGN_CAP: 3763 ht = true; 3764 case WMI_11AG_CAP: 3765 band_2gig = true; 3766 band_5gig = true; 3767 break; 3768 default: 3769 ath6kl_err("invalid phy capability!\n"); 3770 return -EINVAL; 3771 } 3772 3773 /* 3774 * Even if the fw has HT support, advertise HT cap only when 3775 * the firmware has support to override RSN capability, otherwise 3776 * 4-way handshake would fail. 3777 */ 3778 if (!(ht && 3779 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3780 ar->fw_capabilities))) { 3781 ath6kl_band_2ghz.ht_cap.cap = 0; 3782 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3783 ath6kl_band_5ghz.ht_cap.cap = 0; 3784 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3785 } 3786 3787 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, 3788 ar->fw_capabilities)) { 3789 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3790 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3791 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3792 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3793 } else { 3794 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3795 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3796 } 3797 3798 if (band_2gig) 3799 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3800 if (band_5gig) 3801 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3802 3803 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3804 3805 wiphy->cipher_suites = cipher_suites; 3806 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3807 3808 #ifdef CONFIG_PM 3809 wiphy->wowlan = &ath6kl_wowlan_support; 3810 #endif 3811 3812 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3813 3814 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3815 WIPHY_FLAG_HAVE_AP_SME | 3816 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3817 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3818 3819 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3820 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3821 3822 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3823 ar->fw_capabilities)) 3824 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3825 3826 ar->wiphy->probe_resp_offload = 3827 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3828 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3829 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3830 3831 ret = wiphy_register(wiphy); 3832 if (ret < 0) { 3833 ath6kl_err("couldn't register wiphy device\n"); 3834 return ret; 3835 } 3836 3837 ar->wiphy_registered = true; 3838 3839 return 0; 3840 } 3841 3842 void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3843 { 3844 wiphy_unregister(ar->wiphy); 3845 3846 ar->wiphy_registered = false; 3847 } 3848 3849 struct ath6kl *ath6kl_cfg80211_create(void) 3850 { 3851 struct ath6kl *ar; 3852 struct wiphy *wiphy; 3853 3854 /* create a new wiphy for use with cfg80211 */ 3855 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3856 3857 if (!wiphy) { 3858 ath6kl_err("couldn't allocate wiphy device\n"); 3859 return NULL; 3860 } 3861 3862 ar = wiphy_priv(wiphy); 3863 ar->wiphy = wiphy; 3864 3865 return ar; 3866 } 3867 3868 /* Note: ar variable must not be accessed after calling this! */ 3869 void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3870 { 3871 int i; 3872 3873 for (i = 0; i < AP_MAX_NUM_STA; i++) 3874 kfree(ar->sta_list[i].aggr_conn); 3875 3876 wiphy_free(ar->wiphy); 3877 } 3878 3879