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 >> i) & BIT(0)) { 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 >> i) & BIT(0)) { 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 bssid, 0, cap_val, 100, 721 ie, 2 + vif->ssid_len + beacon_ie_len, 722 0, GFP_KERNEL); 723 if (bss) 724 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 725 "added bss %pM to cfg80211\n", bssid); 726 kfree(ie); 727 } else 728 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 729 730 return bss; 731 } 732 733 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 734 u8 *bssid, u16 listen_intvl, 735 u16 beacon_intvl, 736 enum network_type nw_type, 737 u8 beacon_ie_len, u8 assoc_req_len, 738 u8 assoc_resp_len, u8 *assoc_info) 739 { 740 struct ieee80211_channel *chan; 741 struct ath6kl *ar = vif->ar; 742 struct cfg80211_bss *bss; 743 744 /* capinfo + listen interval */ 745 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 746 747 /* capinfo + status code + associd */ 748 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 749 750 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 751 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 752 assoc_resp_ie_offset; 753 754 assoc_req_len -= assoc_req_ie_offset; 755 assoc_resp_len -= assoc_resp_ie_offset; 756 757 /* 758 * Store Beacon interval here; DTIM period will be available only once 759 * a Beacon frame from the AP is seen. 760 */ 761 vif->assoc_bss_beacon_int = beacon_intvl; 762 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 763 764 if (nw_type & ADHOC_NETWORK) { 765 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 766 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 767 "%s: ath6k not in ibss mode\n", __func__); 768 return; 769 } 770 } 771 772 if (nw_type & INFRA_NETWORK) { 773 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 774 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 775 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 776 "%s: ath6k not in station mode\n", __func__); 777 return; 778 } 779 } 780 781 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 782 783 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 784 assoc_info, beacon_ie_len); 785 if (!bss) { 786 ath6kl_err("could not add cfg80211 bss entry\n"); 787 return; 788 } 789 790 if (nw_type & ADHOC_NETWORK) { 791 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 792 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 793 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 794 cfg80211_put_bss(ar->wiphy, bss); 795 return; 796 } 797 798 if (vif->sme_state == SME_CONNECTING) { 799 /* inform connect result to cfg80211 */ 800 vif->sme_state = SME_CONNECTED; 801 cfg80211_connect_result(vif->ndev, bssid, 802 assoc_req_ie, assoc_req_len, 803 assoc_resp_ie, assoc_resp_len, 804 WLAN_STATUS_SUCCESS, GFP_KERNEL); 805 cfg80211_put_bss(ar->wiphy, bss); 806 } else if (vif->sme_state == SME_CONNECTED) { 807 /* inform roam event to cfg80211 */ 808 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 809 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 810 } 811 } 812 813 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 814 struct net_device *dev, u16 reason_code) 815 { 816 struct ath6kl *ar = ath6kl_priv(dev); 817 struct ath6kl_vif *vif = netdev_priv(dev); 818 819 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 820 reason_code); 821 822 ath6kl_cfg80211_sscan_disable(vif); 823 824 if (!ath6kl_cfg80211_ready(vif)) 825 return -EIO; 826 827 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 828 ath6kl_err("busy, destroy in progress\n"); 829 return -EBUSY; 830 } 831 832 if (down_interruptible(&ar->sem)) { 833 ath6kl_err("busy, couldn't get access\n"); 834 return -ERESTARTSYS; 835 } 836 837 vif->reconnect_flag = 0; 838 ath6kl_disconnect(vif); 839 memset(vif->ssid, 0, sizeof(vif->ssid)); 840 vif->ssid_len = 0; 841 842 if (!test_bit(SKIP_SCAN, &ar->flag)) 843 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 844 845 up(&ar->sem); 846 847 vif->sme_state = SME_DISCONNECTED; 848 849 return 0; 850 } 851 852 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 853 u8 *bssid, u8 assoc_resp_len, 854 u8 *assoc_info, u16 proto_reason) 855 { 856 struct ath6kl *ar = vif->ar; 857 858 if (vif->scan_req) { 859 cfg80211_scan_done(vif->scan_req, true); 860 vif->scan_req = NULL; 861 } 862 863 if (vif->nw_type & ADHOC_NETWORK) { 864 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 865 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 866 "%s: ath6k not in ibss mode\n", __func__); 867 return; 868 } 869 memset(bssid, 0, ETH_ALEN); 870 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 871 return; 872 } 873 874 if (vif->nw_type & INFRA_NETWORK) { 875 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 876 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 877 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 878 "%s: ath6k not in station mode\n", __func__); 879 return; 880 } 881 } 882 883 clear_bit(CONNECT_PEND, &vif->flags); 884 885 if (vif->sme_state == SME_CONNECTING) { 886 cfg80211_connect_result(vif->ndev, 887 bssid, NULL, 0, 888 NULL, 0, 889 WLAN_STATUS_UNSPECIFIED_FAILURE, 890 GFP_KERNEL); 891 } else if (vif->sme_state == SME_CONNECTED) { 892 cfg80211_disconnected(vif->ndev, proto_reason, 893 NULL, 0, GFP_KERNEL); 894 } 895 896 vif->sme_state = SME_DISCONNECTED; 897 898 /* 899 * Send a disconnect command to target when a disconnect event is 900 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 901 * request from host) to make the firmware stop trying to connect even 902 * after giving disconnect event. There will be one more disconnect 903 * event for this disconnect command with reason code DISCONNECT_CMD 904 * which won't be notified to cfg80211. 905 */ 906 if (reason != DISCONNECT_CMD) 907 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 908 } 909 910 static int ath6kl_set_probed_ssids(struct ath6kl *ar, 911 struct ath6kl_vif *vif, 912 struct cfg80211_ssid *ssids, int n_ssids, 913 struct cfg80211_match_set *match_set, 914 int n_match_ssid) 915 { 916 u8 i, j, index_to_add, ssid_found = false; 917 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 918 919 memset(ssid_list, 0, sizeof(ssid_list)); 920 921 if (n_ssids > MAX_PROBED_SSIDS || 922 n_match_ssid > MAX_PROBED_SSIDS) 923 return -EINVAL; 924 925 for (i = 0; i < n_ssids; i++) { 926 memcpy(ssid_list[i].ssid.ssid, 927 ssids[i].ssid, 928 ssids[i].ssid_len); 929 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 930 931 if (ssids[i].ssid_len) 932 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 933 else 934 ssid_list[i].flag = ANY_SSID_FLAG; 935 936 if (n_match_ssid == 0) 937 ssid_list[i].flag |= MATCH_SSID_FLAG; 938 } 939 940 index_to_add = i; 941 942 for (i = 0; i < n_match_ssid; i++) { 943 ssid_found = false; 944 945 for (j = 0; j < n_ssids; j++) { 946 if ((match_set[i].ssid.ssid_len == 947 ssid_list[j].ssid.ssid_len) && 948 (!memcmp(ssid_list[j].ssid.ssid, 949 match_set[i].ssid.ssid, 950 match_set[i].ssid.ssid_len))) { 951 ssid_list[j].flag |= MATCH_SSID_FLAG; 952 ssid_found = true; 953 break; 954 } 955 } 956 957 if (ssid_found) 958 continue; 959 960 if (index_to_add >= MAX_PROBED_SSIDS) 961 continue; 962 963 ssid_list[index_to_add].ssid.ssid_len = 964 match_set[i].ssid.ssid_len; 965 memcpy(ssid_list[index_to_add].ssid.ssid, 966 match_set[i].ssid.ssid, 967 match_set[i].ssid.ssid_len); 968 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 969 index_to_add++; 970 } 971 972 for (i = 0; i < index_to_add; i++) { 973 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 974 ssid_list[i].flag, 975 ssid_list[i].ssid.ssid_len, 976 ssid_list[i].ssid.ssid); 977 978 } 979 980 /* Make sure no old entries are left behind */ 981 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 982 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 983 DISABLE_SSID_FLAG, 0, NULL); 984 } 985 986 return 0; 987 } 988 989 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 990 struct cfg80211_scan_request *request) 991 { 992 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 993 struct ath6kl *ar = ath6kl_priv(vif->ndev); 994 s8 n_channels = 0; 995 u16 *channels = NULL; 996 int ret = 0; 997 u32 force_fg_scan = 0; 998 999 if (!ath6kl_cfg80211_ready(vif)) 1000 return -EIO; 1001 1002 ath6kl_cfg80211_sscan_disable(vif); 1003 1004 if (!ar->usr_bss_filter) { 1005 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1006 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1007 ALL_BSS_FILTER, 0); 1008 if (ret) { 1009 ath6kl_err("couldn't set bss filtering\n"); 1010 return ret; 1011 } 1012 } 1013 1014 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 1015 request->n_ssids, NULL, 0); 1016 if (ret < 0) 1017 return ret; 1018 1019 /* this also clears IE in fw if it's not set */ 1020 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1021 WMI_FRAME_PROBE_REQ, 1022 request->ie, request->ie_len); 1023 if (ret) { 1024 ath6kl_err("failed to set Probe Request appie for scan\n"); 1025 return ret; 1026 } 1027 1028 /* 1029 * Scan only the requested channels if the request specifies a set of 1030 * channels. If the list is longer than the target supports, do not 1031 * configure the list and instead, scan all available channels. 1032 */ 1033 if (request->n_channels > 0 && 1034 request->n_channels <= WMI_MAX_CHANNELS) { 1035 u8 i; 1036 1037 n_channels = request->n_channels; 1038 1039 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1040 if (channels == NULL) { 1041 ath6kl_warn("failed to set scan channels, scan all channels"); 1042 n_channels = 0; 1043 } 1044 1045 for (i = 0; i < n_channels; i++) 1046 channels[i] = request->channels[i]->center_freq; 1047 } 1048 1049 if (test_bit(CONNECTED, &vif->flags)) 1050 force_fg_scan = 1; 1051 1052 vif->scan_req = request; 1053 1054 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1055 WMI_LONG_SCAN, force_fg_scan, 1056 false, 0, 1057 ATH6KL_FG_SCAN_INTERVAL, 1058 n_channels, channels, 1059 request->no_cck, 1060 request->rates); 1061 if (ret) { 1062 ath6kl_err("failed to start scan: %d\n", ret); 1063 vif->scan_req = NULL; 1064 } 1065 1066 kfree(channels); 1067 1068 return ret; 1069 } 1070 1071 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1072 { 1073 struct ath6kl *ar = vif->ar; 1074 int i; 1075 1076 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1077 aborted ? " aborted" : ""); 1078 1079 if (!vif->scan_req) 1080 return; 1081 1082 if (aborted) 1083 goto out; 1084 1085 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1086 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1087 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1088 i + 1, DISABLE_SSID_FLAG, 1089 0, NULL); 1090 } 1091 } 1092 1093 out: 1094 cfg80211_scan_done(vif->scan_req, aborted); 1095 vif->scan_req = NULL; 1096 } 1097 1098 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1099 enum wmi_phy_mode mode) 1100 { 1101 struct cfg80211_chan_def chandef; 1102 1103 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1104 "channel switch notify nw_type %d freq %d mode %d\n", 1105 vif->nw_type, freq, mode); 1106 1107 cfg80211_chandef_create(&chandef, 1108 ieee80211_get_channel(vif->ar->wiphy, freq), 1109 (mode == WMI_11G_HT20) ? 1110 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1111 1112 cfg80211_ch_switch_notify(vif->ndev, &chandef); 1113 } 1114 1115 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1116 u8 key_index, bool pairwise, 1117 const u8 *mac_addr, 1118 struct key_params *params) 1119 { 1120 struct ath6kl *ar = ath6kl_priv(ndev); 1121 struct ath6kl_vif *vif = netdev_priv(ndev); 1122 struct ath6kl_key *key = NULL; 1123 int seq_len; 1124 u8 key_usage; 1125 u8 key_type; 1126 1127 if (!ath6kl_cfg80211_ready(vif)) 1128 return -EIO; 1129 1130 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1131 if (params->key_len != WMI_KRK_LEN) 1132 return -EINVAL; 1133 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1134 params->key); 1135 } 1136 1137 if (key_index > WMI_MAX_KEY_INDEX) { 1138 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1139 "%s: key index %d out of bounds\n", __func__, 1140 key_index); 1141 return -ENOENT; 1142 } 1143 1144 key = &vif->keys[key_index]; 1145 memset(key, 0, sizeof(struct ath6kl_key)); 1146 1147 if (pairwise) 1148 key_usage = PAIRWISE_USAGE; 1149 else 1150 key_usage = GROUP_USAGE; 1151 1152 seq_len = params->seq_len; 1153 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1154 seq_len > ATH6KL_KEY_SEQ_LEN) { 1155 /* Only first half of the WPI PN is configured */ 1156 seq_len = ATH6KL_KEY_SEQ_LEN; 1157 } 1158 if (params->key_len > WLAN_MAX_KEY_LEN || 1159 seq_len > sizeof(key->seq)) 1160 return -EINVAL; 1161 1162 key->key_len = params->key_len; 1163 memcpy(key->key, params->key, key->key_len); 1164 key->seq_len = seq_len; 1165 memcpy(key->seq, params->seq, key->seq_len); 1166 key->cipher = params->cipher; 1167 1168 switch (key->cipher) { 1169 case WLAN_CIPHER_SUITE_WEP40: 1170 case WLAN_CIPHER_SUITE_WEP104: 1171 key_type = WEP_CRYPT; 1172 break; 1173 1174 case WLAN_CIPHER_SUITE_TKIP: 1175 key_type = TKIP_CRYPT; 1176 break; 1177 1178 case WLAN_CIPHER_SUITE_CCMP: 1179 key_type = AES_CRYPT; 1180 break; 1181 case WLAN_CIPHER_SUITE_SMS4: 1182 key_type = WAPI_CRYPT; 1183 break; 1184 1185 default: 1186 return -ENOTSUPP; 1187 } 1188 1189 if (((vif->auth_mode == WPA_PSK_AUTH) || 1190 (vif->auth_mode == WPA2_PSK_AUTH)) && 1191 (key_usage & GROUP_USAGE)) 1192 del_timer(&vif->disconnect_timer); 1193 1194 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1195 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1196 __func__, key_index, key->key_len, key_type, 1197 key_usage, key->seq_len); 1198 1199 if (vif->nw_type == AP_NETWORK && !pairwise && 1200 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1201 key_type == WAPI_CRYPT)) { 1202 ar->ap_mode_bkey.valid = true; 1203 ar->ap_mode_bkey.key_index = key_index; 1204 ar->ap_mode_bkey.key_type = key_type; 1205 ar->ap_mode_bkey.key_len = key->key_len; 1206 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1207 if (!test_bit(CONNECTED, &vif->flags)) { 1208 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1209 "Delay initial group key configuration until AP mode has been started\n"); 1210 /* 1211 * The key will be set in ath6kl_connect_ap_mode() once 1212 * the connected event is received from the target. 1213 */ 1214 return 0; 1215 } 1216 } 1217 1218 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1219 !test_bit(CONNECTED, &vif->flags)) { 1220 /* 1221 * Store the key locally so that it can be re-configured after 1222 * the AP mode has properly started 1223 * (ath6kl_install_statioc_wep_keys). 1224 */ 1225 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1226 "Delay WEP key configuration until AP mode has been started\n"); 1227 vif->wep_key_list[key_index].key_len = key->key_len; 1228 memcpy(vif->wep_key_list[key_index].key, key->key, 1229 key->key_len); 1230 return 0; 1231 } 1232 1233 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1234 key_type, key_usage, key->key_len, 1235 key->seq, key->seq_len, key->key, 1236 KEY_OP_INIT_VAL, 1237 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1238 } 1239 1240 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1241 u8 key_index, bool pairwise, 1242 const u8 *mac_addr) 1243 { 1244 struct ath6kl *ar = ath6kl_priv(ndev); 1245 struct ath6kl_vif *vif = netdev_priv(ndev); 1246 1247 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1248 1249 if (!ath6kl_cfg80211_ready(vif)) 1250 return -EIO; 1251 1252 if (key_index > WMI_MAX_KEY_INDEX) { 1253 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1254 "%s: key index %d out of bounds\n", __func__, 1255 key_index); 1256 return -ENOENT; 1257 } 1258 1259 if (!vif->keys[key_index].key_len) { 1260 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1261 "%s: index %d is empty\n", __func__, key_index); 1262 return 0; 1263 } 1264 1265 vif->keys[key_index].key_len = 0; 1266 1267 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1268 } 1269 1270 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1271 u8 key_index, bool pairwise, 1272 const u8 *mac_addr, void *cookie, 1273 void (*callback) (void *cookie, 1274 struct key_params *)) 1275 { 1276 struct ath6kl_vif *vif = netdev_priv(ndev); 1277 struct ath6kl_key *key = NULL; 1278 struct key_params params; 1279 1280 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1281 1282 if (!ath6kl_cfg80211_ready(vif)) 1283 return -EIO; 1284 1285 if (key_index > WMI_MAX_KEY_INDEX) { 1286 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1287 "%s: key index %d out of bounds\n", __func__, 1288 key_index); 1289 return -ENOENT; 1290 } 1291 1292 key = &vif->keys[key_index]; 1293 memset(¶ms, 0, sizeof(params)); 1294 params.cipher = key->cipher; 1295 params.key_len = key->key_len; 1296 params.seq_len = key->seq_len; 1297 params.seq = key->seq; 1298 params.key = key->key; 1299 1300 callback(cookie, ¶ms); 1301 1302 return key->key_len ? 0 : -ENOENT; 1303 } 1304 1305 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1306 struct net_device *ndev, 1307 u8 key_index, bool unicast, 1308 bool multicast) 1309 { 1310 struct ath6kl *ar = ath6kl_priv(ndev); 1311 struct ath6kl_vif *vif = netdev_priv(ndev); 1312 struct ath6kl_key *key = NULL; 1313 u8 key_usage; 1314 enum crypto_type key_type = NONE_CRYPT; 1315 1316 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1317 1318 if (!ath6kl_cfg80211_ready(vif)) 1319 return -EIO; 1320 1321 if (key_index > WMI_MAX_KEY_INDEX) { 1322 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1323 "%s: key index %d out of bounds\n", 1324 __func__, key_index); 1325 return -ENOENT; 1326 } 1327 1328 if (!vif->keys[key_index].key_len) { 1329 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1330 __func__, key_index); 1331 return -EINVAL; 1332 } 1333 1334 vif->def_txkey_index = key_index; 1335 key = &vif->keys[vif->def_txkey_index]; 1336 key_usage = GROUP_USAGE; 1337 if (vif->prwise_crypto == WEP_CRYPT) 1338 key_usage |= TX_USAGE; 1339 if (unicast) 1340 key_type = vif->prwise_crypto; 1341 if (multicast) 1342 key_type = vif->grp_crypto; 1343 1344 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1345 return 0; /* Delay until AP mode has been started */ 1346 1347 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1348 vif->def_txkey_index, 1349 key_type, key_usage, 1350 key->key_len, key->seq, key->seq_len, 1351 key->key, 1352 KEY_OP_INIT_VAL, NULL, 1353 SYNC_BOTH_WMIFLAG); 1354 } 1355 1356 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1357 bool ismcast) 1358 { 1359 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1360 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1361 1362 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1363 (ismcast ? NL80211_KEYTYPE_GROUP : 1364 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1365 GFP_KERNEL); 1366 } 1367 1368 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1369 { 1370 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1371 struct ath6kl_vif *vif; 1372 int ret; 1373 1374 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1375 changed); 1376 1377 vif = ath6kl_vif_first(ar); 1378 if (!vif) 1379 return -EIO; 1380 1381 if (!ath6kl_cfg80211_ready(vif)) 1382 return -EIO; 1383 1384 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1385 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1386 if (ret != 0) { 1387 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1388 return -EIO; 1389 } 1390 } 1391 1392 return 0; 1393 } 1394 1395 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1396 struct wireless_dev *wdev, 1397 enum nl80211_tx_power_setting type, 1398 int mbm) 1399 { 1400 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1401 struct ath6kl_vif *vif; 1402 int dbm = MBM_TO_DBM(mbm); 1403 1404 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1405 type, dbm); 1406 1407 vif = ath6kl_vif_first(ar); 1408 if (!vif) 1409 return -EIO; 1410 1411 if (!ath6kl_cfg80211_ready(vif)) 1412 return -EIO; 1413 1414 switch (type) { 1415 case NL80211_TX_POWER_AUTOMATIC: 1416 return 0; 1417 case NL80211_TX_POWER_LIMITED: 1418 ar->tx_pwr = dbm; 1419 break; 1420 default: 1421 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1422 __func__, type); 1423 return -EOPNOTSUPP; 1424 } 1425 1426 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1427 1428 return 0; 1429 } 1430 1431 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1432 struct wireless_dev *wdev, 1433 int *dbm) 1434 { 1435 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1436 struct ath6kl_vif *vif; 1437 1438 vif = ath6kl_vif_first(ar); 1439 if (!vif) 1440 return -EIO; 1441 1442 if (!ath6kl_cfg80211_ready(vif)) 1443 return -EIO; 1444 1445 if (test_bit(CONNECTED, &vif->flags)) { 1446 ar->tx_pwr = 0; 1447 1448 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1449 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1450 return -EIO; 1451 } 1452 1453 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1454 5 * HZ); 1455 1456 if (signal_pending(current)) { 1457 ath6kl_err("target did not respond\n"); 1458 return -EINTR; 1459 } 1460 } 1461 1462 *dbm = ar->tx_pwr; 1463 return 0; 1464 } 1465 1466 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1467 struct net_device *dev, 1468 bool pmgmt, int timeout) 1469 { 1470 struct ath6kl *ar = ath6kl_priv(dev); 1471 struct wmi_power_mode_cmd mode; 1472 struct ath6kl_vif *vif = netdev_priv(dev); 1473 1474 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1475 __func__, pmgmt, timeout); 1476 1477 if (!ath6kl_cfg80211_ready(vif)) 1478 return -EIO; 1479 1480 if (pmgmt) { 1481 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1482 mode.pwr_mode = REC_POWER; 1483 } else { 1484 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1485 mode.pwr_mode = MAX_PERF_POWER; 1486 } 1487 1488 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1489 mode.pwr_mode) != 0) { 1490 ath6kl_err("wmi_powermode_cmd failed\n"); 1491 return -EIO; 1492 } 1493 1494 return 0; 1495 } 1496 1497 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1498 const char *name, 1499 enum nl80211_iftype type, 1500 u32 *flags, 1501 struct vif_params *params) 1502 { 1503 struct ath6kl *ar = wiphy_priv(wiphy); 1504 struct wireless_dev *wdev; 1505 u8 if_idx, nw_type; 1506 1507 if (ar->num_vif == ar->vif_max) { 1508 ath6kl_err("Reached maximum number of supported vif\n"); 1509 return ERR_PTR(-EINVAL); 1510 } 1511 1512 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1513 ath6kl_err("Not a supported interface type\n"); 1514 return ERR_PTR(-EINVAL); 1515 } 1516 1517 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1518 if (!wdev) 1519 return ERR_PTR(-ENOMEM); 1520 1521 ar->num_vif++; 1522 1523 return wdev; 1524 } 1525 1526 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1527 struct wireless_dev *wdev) 1528 { 1529 struct ath6kl *ar = wiphy_priv(wiphy); 1530 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1531 1532 spin_lock_bh(&ar->list_lock); 1533 list_del(&vif->list); 1534 spin_unlock_bh(&ar->list_lock); 1535 1536 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1537 1538 ath6kl_cfg80211_vif_cleanup(vif); 1539 1540 return 0; 1541 } 1542 1543 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1544 struct net_device *ndev, 1545 enum nl80211_iftype type, u32 *flags, 1546 struct vif_params *params) 1547 { 1548 struct ath6kl_vif *vif = netdev_priv(ndev); 1549 int i; 1550 1551 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1552 1553 /* 1554 * Don't bring up p2p on an interface which is not initialized 1555 * for p2p operation where fw does not have capability to switch 1556 * dynamically between non-p2p and p2p type interface. 1557 */ 1558 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1559 vif->ar->fw_capabilities) && 1560 (type == NL80211_IFTYPE_P2P_CLIENT || 1561 type == NL80211_IFTYPE_P2P_GO)) { 1562 if (vif->ar->vif_max == 1) { 1563 if (vif->fw_vif_idx != 0) 1564 return -EINVAL; 1565 else 1566 goto set_iface_type; 1567 } 1568 1569 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1570 if (i == vif->fw_vif_idx) 1571 break; 1572 } 1573 1574 if (i == vif->ar->vif_max) { 1575 ath6kl_err("Invalid interface to bring up P2P\n"); 1576 return -EINVAL; 1577 } 1578 } 1579 1580 /* need to clean up enhanced bmiss detection fw state */ 1581 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1582 1583 set_iface_type: 1584 switch (type) { 1585 case NL80211_IFTYPE_STATION: 1586 case NL80211_IFTYPE_P2P_CLIENT: 1587 vif->next_mode = INFRA_NETWORK; 1588 break; 1589 case NL80211_IFTYPE_ADHOC: 1590 vif->next_mode = ADHOC_NETWORK; 1591 break; 1592 case NL80211_IFTYPE_AP: 1593 case NL80211_IFTYPE_P2P_GO: 1594 vif->next_mode = AP_NETWORK; 1595 break; 1596 default: 1597 ath6kl_err("invalid interface type %u\n", type); 1598 return -EOPNOTSUPP; 1599 } 1600 1601 vif->wdev.iftype = type; 1602 1603 return 0; 1604 } 1605 1606 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1607 struct net_device *dev, 1608 struct cfg80211_ibss_params *ibss_param) 1609 { 1610 struct ath6kl *ar = ath6kl_priv(dev); 1611 struct ath6kl_vif *vif = netdev_priv(dev); 1612 int status; 1613 1614 if (!ath6kl_cfg80211_ready(vif)) 1615 return -EIO; 1616 1617 vif->ssid_len = ibss_param->ssid_len; 1618 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1619 1620 if (ibss_param->chandef.chan) 1621 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1622 1623 if (ibss_param->channel_fixed) { 1624 /* 1625 * TODO: channel_fixed: The channel should be fixed, do not 1626 * search for IBSSs to join on other channels. Target 1627 * firmware does not support this feature, needs to be 1628 * updated. 1629 */ 1630 return -EOPNOTSUPP; 1631 } 1632 1633 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1634 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1635 memcpy(vif->req_bssid, ibss_param->bssid, 1636 sizeof(vif->req_bssid)); 1637 1638 ath6kl_set_wpa_version(vif, 0); 1639 1640 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1641 if (status) 1642 return status; 1643 1644 if (ibss_param->privacy) { 1645 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1646 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1647 } else { 1648 ath6kl_set_cipher(vif, 0, true); 1649 ath6kl_set_cipher(vif, 0, false); 1650 } 1651 1652 vif->nw_type = vif->next_mode; 1653 1654 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1655 "%s: connect called with authmode %d dot11 auth %d" 1656 " PW crypto %d PW crypto len %d GRP crypto %d" 1657 " GRP crypto len %d channel hint %u\n", 1658 __func__, 1659 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1660 vif->prwise_crypto_len, vif->grp_crypto, 1661 vif->grp_crypto_len, vif->ch_hint); 1662 1663 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1664 vif->dot11_auth_mode, vif->auth_mode, 1665 vif->prwise_crypto, 1666 vif->prwise_crypto_len, 1667 vif->grp_crypto, vif->grp_crypto_len, 1668 vif->ssid_len, vif->ssid, 1669 vif->req_bssid, vif->ch_hint, 1670 ar->connect_ctrl_flags, SUBTYPE_NONE); 1671 set_bit(CONNECT_PEND, &vif->flags); 1672 1673 return 0; 1674 } 1675 1676 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1677 struct net_device *dev) 1678 { 1679 struct ath6kl_vif *vif = netdev_priv(dev); 1680 1681 if (!ath6kl_cfg80211_ready(vif)) 1682 return -EIO; 1683 1684 ath6kl_disconnect(vif); 1685 memset(vif->ssid, 0, sizeof(vif->ssid)); 1686 vif->ssid_len = 0; 1687 1688 return 0; 1689 } 1690 1691 static const u32 cipher_suites[] = { 1692 WLAN_CIPHER_SUITE_WEP40, 1693 WLAN_CIPHER_SUITE_WEP104, 1694 WLAN_CIPHER_SUITE_TKIP, 1695 WLAN_CIPHER_SUITE_CCMP, 1696 CCKM_KRK_CIPHER_SUITE, 1697 WLAN_CIPHER_SUITE_SMS4, 1698 }; 1699 1700 static bool is_rate_legacy(s32 rate) 1701 { 1702 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1703 6000, 9000, 12000, 18000, 24000, 1704 36000, 48000, 54000 1705 }; 1706 u8 i; 1707 1708 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1709 if (rate == legacy[i]) 1710 return true; 1711 1712 return false; 1713 } 1714 1715 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1716 { 1717 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1718 52000, 58500, 65000, 72200 1719 }; 1720 u8 i; 1721 1722 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1723 if (rate == ht20[i]) { 1724 if (i == ARRAY_SIZE(ht20) - 1) 1725 /* last rate uses sgi */ 1726 *sgi = true; 1727 else 1728 *sgi = false; 1729 1730 *mcs = i; 1731 return true; 1732 } 1733 } 1734 return false; 1735 } 1736 1737 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1738 { 1739 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1740 81000, 108000, 121500, 135000, 1741 150000 1742 }; 1743 u8 i; 1744 1745 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1746 if (rate == ht40[i]) { 1747 if (i == ARRAY_SIZE(ht40) - 1) 1748 /* last rate uses sgi */ 1749 *sgi = true; 1750 else 1751 *sgi = false; 1752 1753 *mcs = i; 1754 return true; 1755 } 1756 } 1757 1758 return false; 1759 } 1760 1761 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1762 u8 *mac, struct station_info *sinfo) 1763 { 1764 struct ath6kl *ar = ath6kl_priv(dev); 1765 struct ath6kl_vif *vif = netdev_priv(dev); 1766 long left; 1767 bool sgi; 1768 s32 rate; 1769 int ret; 1770 u8 mcs; 1771 1772 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1773 return -ENOENT; 1774 1775 if (down_interruptible(&ar->sem)) 1776 return -EBUSY; 1777 1778 set_bit(STATS_UPDATE_PEND, &vif->flags); 1779 1780 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1781 1782 if (ret != 0) { 1783 up(&ar->sem); 1784 return -EIO; 1785 } 1786 1787 left = wait_event_interruptible_timeout(ar->event_wq, 1788 !test_bit(STATS_UPDATE_PEND, 1789 &vif->flags), 1790 WMI_TIMEOUT); 1791 1792 up(&ar->sem); 1793 1794 if (left == 0) 1795 return -ETIMEDOUT; 1796 else if (left < 0) 1797 return left; 1798 1799 if (vif->target_stats.rx_byte) { 1800 sinfo->rx_bytes = vif->target_stats.rx_byte; 1801 sinfo->filled |= STATION_INFO_RX_BYTES64; 1802 sinfo->rx_packets = vif->target_stats.rx_pkt; 1803 sinfo->filled |= STATION_INFO_RX_PACKETS; 1804 } 1805 1806 if (vif->target_stats.tx_byte) { 1807 sinfo->tx_bytes = vif->target_stats.tx_byte; 1808 sinfo->filled |= STATION_INFO_TX_BYTES64; 1809 sinfo->tx_packets = vif->target_stats.tx_pkt; 1810 sinfo->filled |= STATION_INFO_TX_PACKETS; 1811 } 1812 1813 sinfo->signal = vif->target_stats.cs_rssi; 1814 sinfo->filled |= STATION_INFO_SIGNAL; 1815 1816 rate = vif->target_stats.tx_ucast_rate; 1817 1818 if (is_rate_legacy(rate)) { 1819 sinfo->txrate.legacy = rate / 100; 1820 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1821 if (sgi) { 1822 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1823 sinfo->txrate.mcs = mcs - 1; 1824 } else { 1825 sinfo->txrate.mcs = mcs; 1826 } 1827 1828 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1829 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1830 if (sgi) { 1831 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1832 sinfo->txrate.mcs = mcs - 1; 1833 } else { 1834 sinfo->txrate.mcs = mcs; 1835 } 1836 1837 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1838 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1839 } else { 1840 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1841 "invalid rate from stats: %d\n", rate); 1842 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1843 return 0; 1844 } 1845 1846 sinfo->filled |= STATION_INFO_TX_BITRATE; 1847 1848 if (test_bit(CONNECTED, &vif->flags) && 1849 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1850 vif->nw_type == INFRA_NETWORK) { 1851 sinfo->filled |= STATION_INFO_BSS_PARAM; 1852 sinfo->bss_param.flags = 0; 1853 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1854 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1855 } 1856 1857 return 0; 1858 } 1859 1860 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1861 struct cfg80211_pmksa *pmksa) 1862 { 1863 struct ath6kl *ar = ath6kl_priv(netdev); 1864 struct ath6kl_vif *vif = netdev_priv(netdev); 1865 1866 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1867 pmksa->pmkid, true); 1868 } 1869 1870 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1871 struct cfg80211_pmksa *pmksa) 1872 { 1873 struct ath6kl *ar = ath6kl_priv(netdev); 1874 struct ath6kl_vif *vif = netdev_priv(netdev); 1875 1876 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1877 pmksa->pmkid, false); 1878 } 1879 1880 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1881 { 1882 struct ath6kl *ar = ath6kl_priv(netdev); 1883 struct ath6kl_vif *vif = netdev_priv(netdev); 1884 1885 if (test_bit(CONNECTED, &vif->flags)) 1886 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1887 vif->bssid, NULL, false); 1888 return 0; 1889 } 1890 1891 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1892 struct cfg80211_wowlan *wow, u32 *filter) 1893 { 1894 int ret, pos; 1895 u8 mask[WOW_PATTERN_SIZE]; 1896 u16 i; 1897 1898 /* Configure the patterns that we received from the user. */ 1899 for (i = 0; i < wow->n_patterns; i++) { 1900 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 switch (info->crypto.cipher_group) { 2857 case WLAN_CIPHER_SUITE_WEP40: 2858 case WLAN_CIPHER_SUITE_WEP104: 2859 p.grp_crypto_type = WEP_CRYPT; 2860 break; 2861 case WLAN_CIPHER_SUITE_TKIP: 2862 p.grp_crypto_type = TKIP_CRYPT; 2863 break; 2864 case WLAN_CIPHER_SUITE_CCMP: 2865 p.grp_crypto_type = AES_CRYPT; 2866 break; 2867 case WLAN_CIPHER_SUITE_SMS4: 2868 p.grp_crypto_type = WAPI_CRYPT; 2869 break; 2870 default: 2871 p.grp_crypto_type = NONE_CRYPT; 2872 break; 2873 } 2874 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2875 2876 p.nw_type = AP_NETWORK; 2877 vif->nw_type = vif->next_mode; 2878 2879 p.ssid_len = vif->ssid_len; 2880 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2881 p.dot11_auth_mode = vif->dot11_auth_mode; 2882 p.ch = cpu_to_le16(info->chandef.chan->center_freq); 2883 2884 /* Enable uAPSD support by default */ 2885 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2886 if (res < 0) 2887 return res; 2888 2889 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2890 p.nw_subtype = SUBTYPE_P2PGO; 2891 } else { 2892 /* 2893 * Due to firmware limitation, it is not possible to 2894 * do P2P mgmt operations in AP mode 2895 */ 2896 p.nw_subtype = SUBTYPE_NONE; 2897 } 2898 2899 if (info->inactivity_timeout) { 2900 2901 inactivity_timeout = info->inactivity_timeout; 2902 2903 if (ar->hw.flags & ATH6KL_HW_AP_INACTIVITY_MINS) 2904 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2905 60); 2906 2907 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2908 inactivity_timeout); 2909 if (res < 0) 2910 return res; 2911 } 2912 2913 if (ath6kl_set_htcap(vif, info->chandef.chan->band, 2914 cfg80211_get_chandef_type(&info->chandef) 2915 != NL80211_CHAN_NO_HT)) 2916 return -EIO; 2917 2918 /* 2919 * Get the PTKSA replay counter in the RSN IE. Supplicant 2920 * will use the RSN IE in M3 message and firmware has to 2921 * advertise the same in beacon/probe response. Send 2922 * the complete RSN IE capability field to firmware 2923 */ 2924 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2925 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2926 ar->fw_capabilities)) { 2927 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2928 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2929 (const u8 *) &rsn_capab, 2930 sizeof(rsn_capab)); 2931 vif->rsn_capab = rsn_capab; 2932 if (res < 0) 2933 return res; 2934 } 2935 2936 memcpy(&vif->profile, &p, sizeof(p)); 2937 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2938 if (res < 0) 2939 return res; 2940 2941 return 0; 2942 } 2943 2944 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2945 struct cfg80211_beacon_data *beacon) 2946 { 2947 struct ath6kl_vif *vif = netdev_priv(dev); 2948 2949 if (!ath6kl_cfg80211_ready(vif)) 2950 return -EIO; 2951 2952 if (vif->next_mode != AP_NETWORK) 2953 return -EOPNOTSUPP; 2954 2955 return ath6kl_set_ies(vif, beacon); 2956 } 2957 2958 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2959 { 2960 struct ath6kl *ar = ath6kl_priv(dev); 2961 struct ath6kl_vif *vif = netdev_priv(dev); 2962 2963 if (vif->nw_type != AP_NETWORK) 2964 return -EOPNOTSUPP; 2965 if (!test_bit(CONNECTED, &vif->flags)) 2966 return -ENOTCONN; 2967 2968 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2969 clear_bit(CONNECTED, &vif->flags); 2970 2971 /* Restore ht setting in firmware */ 2972 return ath6kl_restore_htcap(vif); 2973 } 2974 2975 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2976 2977 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2978 u8 *mac) 2979 { 2980 struct ath6kl *ar = ath6kl_priv(dev); 2981 struct ath6kl_vif *vif = netdev_priv(dev); 2982 const u8 *addr = mac ? mac : bcast_addr; 2983 2984 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2985 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2986 } 2987 2988 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2989 u8 *mac, struct station_parameters *params) 2990 { 2991 struct ath6kl *ar = ath6kl_priv(dev); 2992 struct ath6kl_vif *vif = netdev_priv(dev); 2993 2994 if (vif->nw_type != AP_NETWORK) 2995 return -EOPNOTSUPP; 2996 2997 /* Use this only for authorizing/unauthorizing a station */ 2998 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 2999 return -EOPNOTSUPP; 3000 3001 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3002 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3003 WMI_AP_MLME_AUTHORIZE, mac, 0); 3004 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3005 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3006 } 3007 3008 static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3009 struct wireless_dev *wdev, 3010 struct ieee80211_channel *chan, 3011 unsigned int duration, 3012 u64 *cookie) 3013 { 3014 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3015 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3016 u32 id; 3017 3018 /* TODO: if already pending or ongoing remain-on-channel, 3019 * return -EBUSY */ 3020 id = ++vif->last_roc_id; 3021 if (id == 0) { 3022 /* Do not use 0 as the cookie value */ 3023 id = ++vif->last_roc_id; 3024 } 3025 *cookie = id; 3026 3027 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3028 chan->center_freq, duration); 3029 } 3030 3031 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3032 struct wireless_dev *wdev, 3033 u64 cookie) 3034 { 3035 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3036 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3037 3038 if (cookie != vif->last_roc_id) 3039 return -ENOENT; 3040 vif->last_cancel_roc_id = cookie; 3041 3042 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3043 } 3044 3045 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3046 const u8 *buf, size_t len, 3047 unsigned int freq) 3048 { 3049 struct ath6kl *ar = vif->ar; 3050 const u8 *pos; 3051 u8 *p2p; 3052 int p2p_len; 3053 int ret; 3054 const struct ieee80211_mgmt *mgmt; 3055 3056 mgmt = (const struct ieee80211_mgmt *) buf; 3057 3058 /* Include P2P IE(s) from the frame generated in user space. */ 3059 3060 p2p = kmalloc(len, GFP_KERNEL); 3061 if (p2p == NULL) 3062 return -ENOMEM; 3063 p2p_len = 0; 3064 3065 pos = mgmt->u.probe_resp.variable; 3066 while (pos + 1 < buf + len) { 3067 if (pos + 2 + pos[1] > buf + len) 3068 break; 3069 if (ath6kl_is_p2p_ie(pos)) { 3070 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3071 p2p_len += 2 + pos[1]; 3072 } 3073 pos += 2 + pos[1]; 3074 } 3075 3076 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3077 mgmt->da, p2p, p2p_len); 3078 kfree(p2p); 3079 return ret; 3080 } 3081 3082 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3083 u32 id, 3084 u32 freq, 3085 u32 wait, 3086 const u8 *buf, 3087 size_t len, 3088 bool *more_data, 3089 bool no_cck) 3090 { 3091 struct ieee80211_mgmt *mgmt; 3092 struct ath6kl_sta *conn; 3093 bool is_psq_empty = false; 3094 struct ath6kl_mgmt_buff *mgmt_buf; 3095 size_t mgmt_buf_size; 3096 struct ath6kl *ar = vif->ar; 3097 3098 mgmt = (struct ieee80211_mgmt *) buf; 3099 if (is_multicast_ether_addr(mgmt->da)) 3100 return false; 3101 3102 conn = ath6kl_find_sta(vif, mgmt->da); 3103 if (!conn) 3104 return false; 3105 3106 if (conn->sta_flags & STA_PS_SLEEP) { 3107 if (!(conn->sta_flags & STA_PS_POLLED)) { 3108 /* Queue the frames if the STA is sleeping */ 3109 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3110 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3111 if (!mgmt_buf) 3112 return false; 3113 3114 INIT_LIST_HEAD(&mgmt_buf->list); 3115 mgmt_buf->id = id; 3116 mgmt_buf->freq = freq; 3117 mgmt_buf->wait = wait; 3118 mgmt_buf->len = len; 3119 mgmt_buf->no_cck = no_cck; 3120 memcpy(mgmt_buf->buf, buf, len); 3121 spin_lock_bh(&conn->psq_lock); 3122 is_psq_empty = skb_queue_empty(&conn->psq) && 3123 (conn->mgmt_psq_len == 0); 3124 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3125 conn->mgmt_psq_len++; 3126 spin_unlock_bh(&conn->psq_lock); 3127 3128 /* 3129 * If this is the first pkt getting queued 3130 * for this STA, update the PVB for this 3131 * STA. 3132 */ 3133 if (is_psq_empty) 3134 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3135 conn->aid, 1); 3136 return true; 3137 } 3138 3139 /* 3140 * This tx is because of a PsPoll. 3141 * Determine if MoreData bit has to be set. 3142 */ 3143 spin_lock_bh(&conn->psq_lock); 3144 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3145 *more_data = true; 3146 spin_unlock_bh(&conn->psq_lock); 3147 } 3148 3149 return false; 3150 } 3151 3152 /* Check if SSID length is greater than DIRECT- */ 3153 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3154 { 3155 const struct ieee80211_mgmt *mgmt; 3156 mgmt = (const struct ieee80211_mgmt *) buf; 3157 3158 /* variable[1] contains the SSID tag length */ 3159 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3160 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3161 return true; 3162 } 3163 3164 return false; 3165 } 3166 3167 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3168 struct ieee80211_channel *chan, bool offchan, 3169 unsigned int wait, const u8 *buf, size_t len, 3170 bool no_cck, bool dont_wait_for_ack, u64 *cookie) 3171 { 3172 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3173 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3174 u32 id; 3175 const struct ieee80211_mgmt *mgmt; 3176 bool more_data, queued; 3177 3178 mgmt = (const struct ieee80211_mgmt *) buf; 3179 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3180 ieee80211_is_probe_resp(mgmt->frame_control) && 3181 ath6kl_is_p2p_go_ssid(buf, len)) { 3182 /* 3183 * Send Probe Response frame in GO mode using a separate WMI 3184 * command to allow the target to fill in the generic IEs. 3185 */ 3186 *cookie = 0; /* TX status not supported */ 3187 return ath6kl_send_go_probe_resp(vif, buf, len, 3188 chan->center_freq); 3189 } 3190 3191 id = vif->send_action_id++; 3192 if (id == 0) { 3193 /* 3194 * 0 is a reserved value in the WMI command and shall not be 3195 * used for the command. 3196 */ 3197 id = vif->send_action_id++; 3198 } 3199 3200 *cookie = id; 3201 3202 /* AP mode Power saving processing */ 3203 if (vif->nw_type == AP_NETWORK) { 3204 queued = ath6kl_mgmt_powersave_ap(vif, 3205 id, chan->center_freq, 3206 wait, buf, 3207 len, &more_data, no_cck); 3208 if (queued) 3209 return 0; 3210 } 3211 3212 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, 3213 chan->center_freq, wait, 3214 buf, len, no_cck); 3215 } 3216 3217 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3218 struct wireless_dev *wdev, 3219 u16 frame_type, bool reg) 3220 { 3221 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3222 3223 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3224 __func__, frame_type, reg); 3225 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3226 /* 3227 * Note: This notification callback is not allowed to sleep, so 3228 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3229 * hardcode target to report Probe Request frames all the time. 3230 */ 3231 vif->probe_req_report = reg; 3232 } 3233 } 3234 3235 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3236 struct net_device *dev, 3237 struct cfg80211_sched_scan_request *request) 3238 { 3239 struct ath6kl *ar = ath6kl_priv(dev); 3240 struct ath6kl_vif *vif = netdev_priv(dev); 3241 u16 interval; 3242 int ret, rssi_thold; 3243 3244 if (ar->state != ATH6KL_STATE_ON) 3245 return -EIO; 3246 3247 if (vif->sme_state != SME_DISCONNECTED) 3248 return -EBUSY; 3249 3250 ath6kl_cfg80211_scan_complete_event(vif, true); 3251 3252 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3253 request->n_ssids, 3254 request->match_sets, 3255 request->n_match_sets); 3256 if (ret < 0) 3257 return ret; 3258 3259 if (!request->n_match_sets) { 3260 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3261 ALL_BSS_FILTER, 0); 3262 if (ret < 0) 3263 return ret; 3264 } else { 3265 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3266 MATCHED_SSID_FILTER, 0); 3267 if (ret < 0) 3268 return ret; 3269 } 3270 3271 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3272 ar->fw_capabilities)) { 3273 if (request->rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3274 rssi_thold = 0; 3275 else if (request->rssi_thold < -127) 3276 rssi_thold = -127; 3277 else 3278 rssi_thold = request->rssi_thold; 3279 3280 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3281 rssi_thold); 3282 if (ret) { 3283 ath6kl_err("failed to set RSSI threshold for scan\n"); 3284 return ret; 3285 } 3286 } 3287 3288 /* fw uses seconds, also make sure that it's >0 */ 3289 interval = max_t(u16, 1, request->interval / 1000); 3290 3291 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3292 interval, interval, 3293 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3294 3295 /* this also clears IE in fw if it's not set */ 3296 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3297 WMI_FRAME_PROBE_REQ, 3298 request->ie, request->ie_len); 3299 if (ret) { 3300 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3301 ret); 3302 return ret; 3303 } 3304 3305 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3306 if (ret) 3307 return ret; 3308 3309 set_bit(SCHED_SCANNING, &vif->flags); 3310 3311 return 0; 3312 } 3313 3314 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3315 struct net_device *dev) 3316 { 3317 struct ath6kl_vif *vif = netdev_priv(dev); 3318 bool stopped; 3319 3320 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3321 3322 if (!stopped) 3323 return -EIO; 3324 3325 return 0; 3326 } 3327 3328 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3329 struct net_device *dev, 3330 const u8 *addr, 3331 const struct cfg80211_bitrate_mask *mask) 3332 { 3333 struct ath6kl *ar = ath6kl_priv(dev); 3334 struct ath6kl_vif *vif = netdev_priv(dev); 3335 3336 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3337 mask); 3338 } 3339 3340 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3341 struct net_device *dev, 3342 u32 rate, u32 pkts, u32 intvl) 3343 { 3344 struct ath6kl *ar = ath6kl_priv(dev); 3345 struct ath6kl_vif *vif = netdev_priv(dev); 3346 3347 if (vif->nw_type != INFRA_NETWORK || 3348 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3349 return -EOPNOTSUPP; 3350 3351 if (vif->sme_state != SME_CONNECTED) 3352 return -ENOTCONN; 3353 3354 /* save this since the firmware won't report the interval */ 3355 vif->txe_intvl = intvl; 3356 3357 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3358 rate, pkts, intvl); 3359 } 3360 3361 static const struct ieee80211_txrx_stypes 3362 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3363 [NL80211_IFTYPE_STATION] = { 3364 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3365 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3366 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3367 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3368 }, 3369 [NL80211_IFTYPE_AP] = { 3370 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3371 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3372 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3373 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3374 }, 3375 [NL80211_IFTYPE_P2P_CLIENT] = { 3376 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3377 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3378 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3379 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3380 }, 3381 [NL80211_IFTYPE_P2P_GO] = { 3382 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3383 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3384 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3385 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3386 }, 3387 }; 3388 3389 static struct cfg80211_ops ath6kl_cfg80211_ops = { 3390 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3391 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3392 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3393 .scan = ath6kl_cfg80211_scan, 3394 .connect = ath6kl_cfg80211_connect, 3395 .disconnect = ath6kl_cfg80211_disconnect, 3396 .add_key = ath6kl_cfg80211_add_key, 3397 .get_key = ath6kl_cfg80211_get_key, 3398 .del_key = ath6kl_cfg80211_del_key, 3399 .set_default_key = ath6kl_cfg80211_set_default_key, 3400 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3401 .set_tx_power = ath6kl_cfg80211_set_txpower, 3402 .get_tx_power = ath6kl_cfg80211_get_txpower, 3403 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3404 .join_ibss = ath6kl_cfg80211_join_ibss, 3405 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3406 .get_station = ath6kl_get_station, 3407 .set_pmksa = ath6kl_set_pmksa, 3408 .del_pmksa = ath6kl_del_pmksa, 3409 .flush_pmksa = ath6kl_flush_pmksa, 3410 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3411 #ifdef CONFIG_PM 3412 .suspend = __ath6kl_cfg80211_suspend, 3413 .resume = __ath6kl_cfg80211_resume, 3414 #endif 3415 .start_ap = ath6kl_start_ap, 3416 .change_beacon = ath6kl_change_beacon, 3417 .stop_ap = ath6kl_stop_ap, 3418 .del_station = ath6kl_del_station, 3419 .change_station = ath6kl_change_station, 3420 .remain_on_channel = ath6kl_remain_on_channel, 3421 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3422 .mgmt_tx = ath6kl_mgmt_tx, 3423 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3424 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3425 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3426 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3427 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3428 }; 3429 3430 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3431 { 3432 ath6kl_cfg80211_sscan_disable(vif); 3433 3434 switch (vif->sme_state) { 3435 case SME_DISCONNECTED: 3436 break; 3437 case SME_CONNECTING: 3438 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3439 NULL, 0, 3440 WLAN_STATUS_UNSPECIFIED_FAILURE, 3441 GFP_KERNEL); 3442 break; 3443 case SME_CONNECTED: 3444 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3445 break; 3446 } 3447 3448 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3449 (test_bit(CONNECTED, &vif->flags) || 3450 test_bit(CONNECT_PEND, &vif->flags))) 3451 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3452 3453 vif->sme_state = SME_DISCONNECTED; 3454 clear_bit(CONNECTED, &vif->flags); 3455 clear_bit(CONNECT_PEND, &vif->flags); 3456 3457 /* Stop netdev queues, needed during recovery */ 3458 netif_stop_queue(vif->ndev); 3459 netif_carrier_off(vif->ndev); 3460 3461 /* disable scanning */ 3462 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3463 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3464 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3465 ath6kl_warn("failed to disable scan during stop\n"); 3466 3467 ath6kl_cfg80211_scan_complete_event(vif, true); 3468 } 3469 3470 void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3471 { 3472 struct ath6kl_vif *vif; 3473 3474 vif = ath6kl_vif_first(ar); 3475 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3476 /* save the current power mode before enabling power save */ 3477 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3478 3479 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3480 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3481 return; 3482 } 3483 3484 /* 3485 * FIXME: we should take ar->list_lock to protect changes in the 3486 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3487 * sleeps. 3488 */ 3489 list_for_each_entry(vif, &ar->vif_list, list) 3490 ath6kl_cfg80211_stop(vif); 3491 } 3492 3493 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3494 struct regulatory_request *request) 3495 { 3496 struct ath6kl *ar = wiphy_priv(wiphy); 3497 u32 rates[IEEE80211_NUM_BANDS]; 3498 int ret, i; 3499 3500 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3501 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3502 request->alpha2[0], request->alpha2[1], 3503 request->intersect ? " intersect" : "", 3504 request->processed ? " processed" : "", 3505 request->initiator, request->user_reg_hint_type); 3506 3507 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3508 return; 3509 3510 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3511 if (ret) { 3512 ath6kl_err("failed to set regdomain: %d\n", ret); 3513 return; 3514 } 3515 3516 /* 3517 * Firmware will apply the regdomain change only after a scan is 3518 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3519 * changed. 3520 */ 3521 3522 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 3523 if (wiphy->bands[i]) 3524 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3525 3526 3527 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3528 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3529 0, NULL, false, rates); 3530 if (ret) { 3531 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3532 ret); 3533 return; 3534 } 3535 } 3536 3537 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3538 { 3539 vif->aggr_cntxt = aggr_init(vif); 3540 if (!vif->aggr_cntxt) { 3541 ath6kl_err("failed to initialize aggr\n"); 3542 return -ENOMEM; 3543 } 3544 3545 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3546 (unsigned long) vif->ndev); 3547 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3548 (unsigned long) vif); 3549 3550 set_bit(WMM_ENABLED, &vif->flags); 3551 spin_lock_init(&vif->if_lock); 3552 3553 INIT_LIST_HEAD(&vif->mc_filter); 3554 3555 return 0; 3556 } 3557 3558 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready) 3559 { 3560 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3561 bool discon_issued; 3562 3563 netif_stop_queue(vif->ndev); 3564 3565 clear_bit(WLAN_ENABLED, &vif->flags); 3566 3567 if (wmi_ready) { 3568 discon_issued = test_bit(CONNECTED, &vif->flags) || 3569 test_bit(CONNECT_PEND, &vif->flags); 3570 ath6kl_disconnect(vif); 3571 del_timer(&vif->disconnect_timer); 3572 3573 if (discon_issued) 3574 ath6kl_disconnect_event(vif, DISCONNECT_CMD, 3575 (vif->nw_type & AP_NETWORK) ? 3576 bcast_mac : vif->bssid, 3577 0, NULL, 0); 3578 } 3579 3580 if (vif->scan_req) { 3581 cfg80211_scan_done(vif->scan_req, true); 3582 vif->scan_req = NULL; 3583 } 3584 3585 /* need to clean up enhanced bmiss detection fw state */ 3586 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 3587 } 3588 3589 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3590 { 3591 struct ath6kl *ar = vif->ar; 3592 struct ath6kl_mc_filter *mc_filter, *tmp; 3593 3594 aggr_module_destroy(vif->aggr_cntxt); 3595 3596 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3597 3598 if (vif->nw_type == ADHOC_NETWORK) 3599 ar->ibss_if_active = false; 3600 3601 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3602 list_del(&mc_filter->list); 3603 kfree(mc_filter); 3604 } 3605 3606 unregister_netdevice(vif->ndev); 3607 3608 ar->num_vif--; 3609 } 3610 3611 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3612 enum nl80211_iftype type, 3613 u8 fw_vif_idx, u8 nw_type) 3614 { 3615 struct net_device *ndev; 3616 struct ath6kl_vif *vif; 3617 3618 ndev = alloc_netdev(sizeof(*vif), name, ether_setup); 3619 if (!ndev) 3620 return NULL; 3621 3622 vif = netdev_priv(ndev); 3623 ndev->ieee80211_ptr = &vif->wdev; 3624 vif->wdev.wiphy = ar->wiphy; 3625 vif->ar = ar; 3626 vif->ndev = ndev; 3627 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3628 vif->wdev.netdev = ndev; 3629 vif->wdev.iftype = type; 3630 vif->fw_vif_idx = fw_vif_idx; 3631 vif->nw_type = nw_type; 3632 vif->next_mode = nw_type; 3633 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3634 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3635 vif->bg_scan_period = 0; 3636 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3637 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3638 3639 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3640 if (fw_vif_idx != 0) { 3641 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3642 0x2; 3643 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3644 ar->fw_capabilities)) 3645 ndev->dev_addr[4] ^= 0x80; 3646 } 3647 3648 init_netdev(ndev); 3649 3650 ath6kl_init_control_info(vif); 3651 3652 if (ath6kl_cfg80211_vif_init(vif)) 3653 goto err; 3654 3655 if (register_netdevice(ndev)) 3656 goto err; 3657 3658 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3659 vif->sme_state = SME_DISCONNECTED; 3660 set_bit(WLAN_ENABLED, &vif->flags); 3661 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3662 set_bit(NETDEV_REGISTERED, &vif->flags); 3663 3664 if (type == NL80211_IFTYPE_ADHOC) 3665 ar->ibss_if_active = true; 3666 3667 spin_lock_bh(&ar->list_lock); 3668 list_add_tail(&vif->list, &ar->vif_list); 3669 spin_unlock_bh(&ar->list_lock); 3670 3671 return &vif->wdev; 3672 3673 err: 3674 aggr_module_destroy(vif->aggr_cntxt); 3675 free_netdev(ndev); 3676 return NULL; 3677 } 3678 3679 int ath6kl_cfg80211_init(struct ath6kl *ar) 3680 { 3681 struct wiphy *wiphy = ar->wiphy; 3682 bool band_2gig = false, band_5gig = false, ht = false; 3683 int ret; 3684 3685 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3686 3687 wiphy->max_remain_on_channel_duration = 5000; 3688 3689 /* set device pointer for wiphy */ 3690 set_wiphy_dev(wiphy, ar->dev); 3691 3692 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3693 BIT(NL80211_IFTYPE_ADHOC) | 3694 BIT(NL80211_IFTYPE_AP); 3695 if (ar->p2p) { 3696 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3697 BIT(NL80211_IFTYPE_P2P_CLIENT); 3698 } 3699 3700 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) && 3701 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3702 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3703 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3704 } 3705 3706 /* max num of ssids that can be probed during scanning */ 3707 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3708 3709 /* max num of ssids that can be matched after scan */ 3710 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3711 ar->fw_capabilities)) 3712 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3713 3714 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3715 switch (ar->hw.cap) { 3716 case WMI_11AN_CAP: 3717 ht = true; 3718 case WMI_11A_CAP: 3719 band_5gig = true; 3720 break; 3721 case WMI_11GN_CAP: 3722 ht = true; 3723 case WMI_11G_CAP: 3724 band_2gig = true; 3725 break; 3726 case WMI_11AGN_CAP: 3727 ht = true; 3728 case WMI_11AG_CAP: 3729 band_2gig = true; 3730 band_5gig = true; 3731 break; 3732 default: 3733 ath6kl_err("invalid phy capability!\n"); 3734 return -EINVAL; 3735 } 3736 3737 /* 3738 * Even if the fw has HT support, advertise HT cap only when 3739 * the firmware has support to override RSN capability, otherwise 3740 * 4-way handshake would fail. 3741 */ 3742 if (!(ht && 3743 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3744 ar->fw_capabilities))) { 3745 ath6kl_band_2ghz.ht_cap.cap = 0; 3746 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3747 ath6kl_band_5ghz.ht_cap.cap = 0; 3748 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3749 } 3750 3751 if (ar->hw.flags & ATH6KL_HW_64BIT_RATES) { 3752 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3753 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3754 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3755 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3756 } else { 3757 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3758 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3759 } 3760 3761 if (band_2gig) 3762 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3763 if (band_5gig) 3764 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3765 3766 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3767 3768 wiphy->cipher_suites = cipher_suites; 3769 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3770 3771 #ifdef CONFIG_PM 3772 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | 3773 WIPHY_WOWLAN_DISCONNECT | 3774 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3775 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3776 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3777 WIPHY_WOWLAN_4WAY_HANDSHAKE; 3778 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; 3779 wiphy->wowlan.pattern_min_len = 1; 3780 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; 3781 #endif 3782 3783 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3784 3785 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3786 WIPHY_FLAG_HAVE_AP_SME | 3787 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3788 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3789 3790 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3791 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3792 3793 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3794 ar->fw_capabilities)) 3795 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3796 3797 ar->wiphy->probe_resp_offload = 3798 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3799 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3800 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3801 3802 ret = wiphy_register(wiphy); 3803 if (ret < 0) { 3804 ath6kl_err("couldn't register wiphy device\n"); 3805 return ret; 3806 } 3807 3808 ar->wiphy_registered = true; 3809 3810 return 0; 3811 } 3812 3813 void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3814 { 3815 wiphy_unregister(ar->wiphy); 3816 3817 ar->wiphy_registered = false; 3818 } 3819 3820 struct ath6kl *ath6kl_cfg80211_create(void) 3821 { 3822 struct ath6kl *ar; 3823 struct wiphy *wiphy; 3824 3825 /* create a new wiphy for use with cfg80211 */ 3826 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3827 3828 if (!wiphy) { 3829 ath6kl_err("couldn't allocate wiphy device\n"); 3830 return NULL; 3831 } 3832 3833 ar = wiphy_priv(wiphy); 3834 ar->wiphy = wiphy; 3835 3836 return ar; 3837 } 3838 3839 /* Note: ar variable must not be accessed after calling this! */ 3840 void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3841 { 3842 int i; 3843 3844 for (i = 0; i < AP_MAX_NUM_STA; i++) 3845 kfree(ar->sta_list[i].aggr_conn); 3846 3847 wiphy_free(ar->wiphy); 3848 } 3849 3850