1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 19 20 #include <linux/moduleparam.h> 21 #include <linux/inetdevice.h> 22 #include <linux/export.h> 23 24 #include "core.h" 25 #include "cfg80211.h" 26 #include "debug.h" 27 #include "hif-ops.h" 28 #include "testmode.h" 29 30 #define RATETAB_ENT(_rate, _rateid, _flags) { \ 31 .bitrate = (_rate), \ 32 .flags = (_flags), \ 33 .hw_value = (_rateid), \ 34 } 35 36 #define CHAN2G(_channel, _freq, _flags) { \ 37 .band = IEEE80211_BAND_2GHZ, \ 38 .hw_value = (_channel), \ 39 .center_freq = (_freq), \ 40 .flags = (_flags), \ 41 .max_antenna_gain = 0, \ 42 .max_power = 30, \ 43 } 44 45 #define CHAN5G(_channel, _flags) { \ 46 .band = IEEE80211_BAND_5GHZ, \ 47 .hw_value = (_channel), \ 48 .center_freq = 5000 + (5 * (_channel)), \ 49 .flags = (_flags), \ 50 .max_antenna_gain = 0, \ 51 .max_power = 30, \ 52 } 53 54 #define DEFAULT_BG_SCAN_PERIOD 60 55 56 struct ath6kl_cfg80211_match_probe_ssid { 57 struct cfg80211_ssid ssid; 58 u8 flag; 59 }; 60 61 static struct ieee80211_rate ath6kl_rates[] = { 62 RATETAB_ENT(10, 0x1, 0), 63 RATETAB_ENT(20, 0x2, 0), 64 RATETAB_ENT(55, 0x4, 0), 65 RATETAB_ENT(110, 0x8, 0), 66 RATETAB_ENT(60, 0x10, 0), 67 RATETAB_ENT(90, 0x20, 0), 68 RATETAB_ENT(120, 0x40, 0), 69 RATETAB_ENT(180, 0x80, 0), 70 RATETAB_ENT(240, 0x100, 0), 71 RATETAB_ENT(360, 0x200, 0), 72 RATETAB_ENT(480, 0x400, 0), 73 RATETAB_ENT(540, 0x800, 0), 74 }; 75 76 #define ath6kl_a_rates (ath6kl_rates + 4) 77 #define ath6kl_a_rates_size 8 78 #define ath6kl_g_rates (ath6kl_rates + 0) 79 #define ath6kl_g_rates_size 12 80 81 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 82 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 83 IEEE80211_HT_CAP_SGI_20 | \ 84 IEEE80211_HT_CAP_SGI_40) 85 86 static struct ieee80211_channel ath6kl_2ghz_channels[] = { 87 CHAN2G(1, 2412, 0), 88 CHAN2G(2, 2417, 0), 89 CHAN2G(3, 2422, 0), 90 CHAN2G(4, 2427, 0), 91 CHAN2G(5, 2432, 0), 92 CHAN2G(6, 2437, 0), 93 CHAN2G(7, 2442, 0), 94 CHAN2G(8, 2447, 0), 95 CHAN2G(9, 2452, 0), 96 CHAN2G(10, 2457, 0), 97 CHAN2G(11, 2462, 0), 98 CHAN2G(12, 2467, 0), 99 CHAN2G(13, 2472, 0), 100 CHAN2G(14, 2484, 0), 101 }; 102 103 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 104 CHAN5G(34, 0), CHAN5G(36, 0), 105 CHAN5G(38, 0), CHAN5G(40, 0), 106 CHAN5G(42, 0), CHAN5G(44, 0), 107 CHAN5G(46, 0), CHAN5G(48, 0), 108 CHAN5G(52, 0), CHAN5G(56, 0), 109 CHAN5G(60, 0), CHAN5G(64, 0), 110 CHAN5G(100, 0), CHAN5G(104, 0), 111 CHAN5G(108, 0), CHAN5G(112, 0), 112 CHAN5G(116, 0), CHAN5G(120, 0), 113 CHAN5G(124, 0), CHAN5G(128, 0), 114 CHAN5G(132, 0), CHAN5G(136, 0), 115 CHAN5G(140, 0), CHAN5G(149, 0), 116 CHAN5G(153, 0), CHAN5G(157, 0), 117 CHAN5G(161, 0), CHAN5G(165, 0), 118 CHAN5G(184, 0), CHAN5G(188, 0), 119 CHAN5G(192, 0), CHAN5G(196, 0), 120 CHAN5G(200, 0), CHAN5G(204, 0), 121 CHAN5G(208, 0), CHAN5G(212, 0), 122 CHAN5G(216, 0), 123 }; 124 125 static struct ieee80211_supported_band ath6kl_band_2ghz = { 126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 127 .channels = ath6kl_2ghz_channels, 128 .n_bitrates = ath6kl_g_rates_size, 129 .bitrates = ath6kl_g_rates, 130 .ht_cap.cap = ath6kl_g_htcap, 131 .ht_cap.ht_supported = true, 132 }; 133 134 static struct ieee80211_supported_band ath6kl_band_5ghz = { 135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 136 .channels = ath6kl_5ghz_a_channels, 137 .n_bitrates = ath6kl_a_rates_size, 138 .bitrates = ath6kl_a_rates, 139 .ht_cap.cap = ath6kl_a_htcap, 140 .ht_cap.ht_supported = true, 141 }; 142 143 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 144 145 /* returns true if scheduled scan was stopped */ 146 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 147 { 148 struct ath6kl *ar = vif->ar; 149 150 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) 151 return false; 152 153 del_timer_sync(&vif->sched_scan_timer); 154 155 if (ar->state == ATH6KL_STATE_RECOVERY) 156 return true; 157 158 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); 159 160 return true; 161 } 162 163 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 164 { 165 struct ath6kl *ar = vif->ar; 166 bool stopped; 167 168 stopped = __ath6kl_cfg80211_sscan_stop(vif); 169 170 if (!stopped) 171 return; 172 173 cfg80211_sched_scan_stopped(ar->wiphy); 174 } 175 176 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 177 enum nl80211_wpa_versions wpa_version) 178 { 179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 180 181 if (!wpa_version) { 182 vif->auth_mode = NONE_AUTH; 183 } else if (wpa_version & NL80211_WPA_VERSION_2) { 184 vif->auth_mode = WPA2_AUTH; 185 } else if (wpa_version & NL80211_WPA_VERSION_1) { 186 vif->auth_mode = WPA_AUTH; 187 } else { 188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 189 return -ENOTSUPP; 190 } 191 192 return 0; 193 } 194 195 static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 196 enum nl80211_auth_type auth_type) 197 { 198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 199 200 switch (auth_type) { 201 case NL80211_AUTHTYPE_OPEN_SYSTEM: 202 vif->dot11_auth_mode = OPEN_AUTH; 203 break; 204 case NL80211_AUTHTYPE_SHARED_KEY: 205 vif->dot11_auth_mode = SHARED_AUTH; 206 break; 207 case NL80211_AUTHTYPE_NETWORK_EAP: 208 vif->dot11_auth_mode = LEAP_AUTH; 209 break; 210 211 case NL80211_AUTHTYPE_AUTOMATIC: 212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 213 break; 214 215 default: 216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 217 return -ENOTSUPP; 218 } 219 220 return 0; 221 } 222 223 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 224 { 225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 227 &vif->grp_crypto_len; 228 229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 230 __func__, cipher, ucast); 231 232 switch (cipher) { 233 case 0: 234 /* our own hack to use value 0 as no crypto used */ 235 *ar_cipher = NONE_CRYPT; 236 *ar_cipher_len = 0; 237 break; 238 case WLAN_CIPHER_SUITE_WEP40: 239 *ar_cipher = WEP_CRYPT; 240 *ar_cipher_len = 5; 241 break; 242 case WLAN_CIPHER_SUITE_WEP104: 243 *ar_cipher = WEP_CRYPT; 244 *ar_cipher_len = 13; 245 break; 246 case WLAN_CIPHER_SUITE_TKIP: 247 *ar_cipher = TKIP_CRYPT; 248 *ar_cipher_len = 0; 249 break; 250 case WLAN_CIPHER_SUITE_CCMP: 251 *ar_cipher = AES_CRYPT; 252 *ar_cipher_len = 0; 253 break; 254 case WLAN_CIPHER_SUITE_SMS4: 255 *ar_cipher = WAPI_CRYPT; 256 *ar_cipher_len = 0; 257 break; 258 default: 259 ath6kl_err("cipher 0x%x not supported\n", cipher); 260 return -ENOTSUPP; 261 } 262 263 return 0; 264 } 265 266 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 267 { 268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 269 270 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 271 if (vif->auth_mode == WPA_AUTH) 272 vif->auth_mode = WPA_PSK_AUTH; 273 else if (vif->auth_mode == WPA2_AUTH) 274 vif->auth_mode = WPA2_PSK_AUTH; 275 } else if (key_mgmt == 0x00409600) { 276 if (vif->auth_mode == WPA_AUTH) 277 vif->auth_mode = WPA_AUTH_CCKM; 278 else if (vif->auth_mode == WPA2_AUTH) 279 vif->auth_mode = WPA2_AUTH_CCKM; 280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 281 vif->auth_mode = NONE_AUTH; 282 } 283 } 284 285 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 286 { 287 struct ath6kl *ar = vif->ar; 288 289 if (!test_bit(WMI_READY, &ar->flag)) { 290 ath6kl_err("wmi is not ready\n"); 291 return false; 292 } 293 294 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 295 ath6kl_err("wlan disabled\n"); 296 return false; 297 } 298 299 return true; 300 } 301 302 static bool ath6kl_is_wpa_ie(const u8 *pos) 303 { 304 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 305 pos[2] == 0x00 && pos[3] == 0x50 && 306 pos[4] == 0xf2 && pos[5] == 0x01; 307 } 308 309 static bool ath6kl_is_rsn_ie(const u8 *pos) 310 { 311 return pos[0] == WLAN_EID_RSN; 312 } 313 314 static bool ath6kl_is_wps_ie(const u8 *pos) 315 { 316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 317 pos[1] >= 4 && 318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 319 pos[5] == 0x04); 320 } 321 322 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 323 size_t ies_len) 324 { 325 struct ath6kl *ar = vif->ar; 326 const u8 *pos; 327 u8 *buf = NULL; 328 size_t len = 0; 329 int ret; 330 331 /* 332 * Clear previously set flag 333 */ 334 335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 336 337 /* 338 * Filter out RSN/WPA IE(s) 339 */ 340 341 if (ies && ies_len) { 342 buf = kmalloc(ies_len, GFP_KERNEL); 343 if (buf == NULL) 344 return -ENOMEM; 345 pos = ies; 346 347 while (pos + 1 < ies + ies_len) { 348 if (pos + 2 + pos[1] > ies + ies_len) 349 break; 350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 351 memcpy(buf + len, pos, 2 + pos[1]); 352 len += 2 + pos[1]; 353 } 354 355 if (ath6kl_is_wps_ie(pos)) 356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 357 358 pos += 2 + pos[1]; 359 } 360 } 361 362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 363 WMI_FRAME_ASSOC_REQ, buf, len); 364 kfree(buf); 365 return ret; 366 } 367 368 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 369 { 370 switch (type) { 371 case NL80211_IFTYPE_STATION: 372 case NL80211_IFTYPE_P2P_CLIENT: 373 *nw_type = INFRA_NETWORK; 374 break; 375 case NL80211_IFTYPE_ADHOC: 376 *nw_type = ADHOC_NETWORK; 377 break; 378 case NL80211_IFTYPE_AP: 379 case NL80211_IFTYPE_P2P_GO: 380 *nw_type = AP_NETWORK; 381 break; 382 default: 383 ath6kl_err("invalid interface type %u\n", type); 384 return -ENOTSUPP; 385 } 386 387 return 0; 388 } 389 390 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 391 u8 *if_idx, u8 *nw_type) 392 { 393 int i; 394 395 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 396 return false; 397 398 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 399 ar->num_vif)) 400 return false; 401 402 if (type == NL80211_IFTYPE_STATION || 403 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 404 for (i = 0; i < ar->vif_max; i++) { 405 if ((ar->avail_idx_map) & BIT(i)) { 406 *if_idx = i; 407 return true; 408 } 409 } 410 } 411 412 if (type == NL80211_IFTYPE_P2P_CLIENT || 413 type == NL80211_IFTYPE_P2P_GO) { 414 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 415 if ((ar->avail_idx_map) & BIT(i)) { 416 *if_idx = i; 417 return true; 418 } 419 } 420 } 421 422 return false; 423 } 424 425 static bool ath6kl_is_tx_pending(struct ath6kl *ar) 426 { 427 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 428 } 429 430 static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, 431 bool enable) 432 { 433 int err; 434 435 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 436 return; 437 438 if (vif->nw_type != INFRA_NETWORK) 439 return; 440 441 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 442 vif->ar->fw_capabilities)) 443 return; 444 445 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 446 enable ? "enable" : "disable"); 447 448 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 449 vif->fw_vif_idx, enable); 450 if (err) 451 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 452 enable ? "enable" : "disable", err); 453 } 454 455 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 456 struct cfg80211_connect_params *sme) 457 { 458 struct ath6kl *ar = ath6kl_priv(dev); 459 struct ath6kl_vif *vif = netdev_priv(dev); 460 int status; 461 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 462 u16 interval; 463 464 ath6kl_cfg80211_sscan_disable(vif); 465 466 vif->sme_state = SME_CONNECTING; 467 468 if (!ath6kl_cfg80211_ready(vif)) 469 return -EIO; 470 471 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 472 ath6kl_err("destroy in progress\n"); 473 return -EBUSY; 474 } 475 476 if (test_bit(SKIP_SCAN, &ar->flag) && 477 ((sme->channel && sme->channel->center_freq == 0) || 478 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 479 ath6kl_err("SkipScan: channel or bssid invalid\n"); 480 return -EINVAL; 481 } 482 483 if (down_interruptible(&ar->sem)) { 484 ath6kl_err("busy, couldn't get access\n"); 485 return -ERESTARTSYS; 486 } 487 488 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 489 ath6kl_err("busy, destroy in progress\n"); 490 up(&ar->sem); 491 return -EBUSY; 492 } 493 494 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 495 /* 496 * sleep until the command queue drains 497 */ 498 wait_event_interruptible_timeout(ar->event_wq, 499 ath6kl_is_tx_pending(ar), 500 WMI_TIMEOUT); 501 if (signal_pending(current)) { 502 ath6kl_err("cmd queue drain timeout\n"); 503 up(&ar->sem); 504 return -EINTR; 505 } 506 } 507 508 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 509 if (status) { 510 up(&ar->sem); 511 return status; 512 } 513 514 if (sme->ie == NULL || sme->ie_len == 0) 515 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 516 517 if (test_bit(CONNECTED, &vif->flags) && 518 vif->ssid_len == sme->ssid_len && 519 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 520 vif->reconnect_flag = true; 521 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 522 vif->req_bssid, 523 vif->ch_hint); 524 525 up(&ar->sem); 526 if (status) { 527 ath6kl_err("wmi_reconnect_cmd failed\n"); 528 return -EIO; 529 } 530 return 0; 531 } else if (vif->ssid_len == sme->ssid_len && 532 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 533 ath6kl_disconnect(vif); 534 } 535 536 memset(vif->ssid, 0, sizeof(vif->ssid)); 537 vif->ssid_len = sme->ssid_len; 538 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 539 540 if (sme->channel) 541 vif->ch_hint = sme->channel->center_freq; 542 543 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 544 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 545 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 546 547 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 548 549 status = ath6kl_set_auth_type(vif, sme->auth_type); 550 if (status) { 551 up(&ar->sem); 552 return status; 553 } 554 555 if (sme->crypto.n_ciphers_pairwise) 556 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 557 else 558 ath6kl_set_cipher(vif, 0, true); 559 560 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 561 562 if (sme->crypto.n_akm_suites) 563 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 564 565 if ((sme->key_len) && 566 (vif->auth_mode == NONE_AUTH) && 567 (vif->prwise_crypto == WEP_CRYPT)) { 568 struct ath6kl_key *key = NULL; 569 570 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 571 ath6kl_err("key index %d out of bounds\n", 572 sme->key_idx); 573 up(&ar->sem); 574 return -ENOENT; 575 } 576 577 key = &vif->keys[sme->key_idx]; 578 key->key_len = sme->key_len; 579 memcpy(key->key, sme->key, key->key_len); 580 key->cipher = vif->prwise_crypto; 581 vif->def_txkey_index = sme->key_idx; 582 583 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 584 vif->prwise_crypto, 585 GROUP_USAGE | TX_USAGE, 586 key->key_len, 587 NULL, 0, 588 key->key, KEY_OP_INIT_VAL, NULL, 589 NO_SYNC_WMIFLAG); 590 } 591 592 if (!ar->usr_bss_filter) { 593 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 594 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 595 ALL_BSS_FILTER, 0) != 0) { 596 ath6kl_err("couldn't set bss filtering\n"); 597 up(&ar->sem); 598 return -EIO; 599 } 600 } 601 602 vif->nw_type = vif->next_mode; 603 604 /* enable enhanced bmiss detection if applicable */ 605 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 606 607 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 608 nw_subtype = SUBTYPE_P2PCLIENT; 609 610 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 611 "%s: connect called with authmode %d dot11 auth %d" 612 " PW crypto %d PW crypto len %d GRP crypto %d" 613 " GRP crypto len %d channel hint %u\n", 614 __func__, 615 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 616 vif->prwise_crypto_len, vif->grp_crypto, 617 vif->grp_crypto_len, vif->ch_hint); 618 619 vif->reconnect_flag = 0; 620 621 if (vif->nw_type == INFRA_NETWORK) { 622 interval = max_t(u16, vif->listen_intvl_t, 623 ATH6KL_MAX_WOW_LISTEN_INTL); 624 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 625 interval, 626 0); 627 if (status) { 628 ath6kl_err("couldn't set listen intervel\n"); 629 up(&ar->sem); 630 return status; 631 } 632 } 633 634 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 635 vif->dot11_auth_mode, vif->auth_mode, 636 vif->prwise_crypto, 637 vif->prwise_crypto_len, 638 vif->grp_crypto, vif->grp_crypto_len, 639 vif->ssid_len, vif->ssid, 640 vif->req_bssid, vif->ch_hint, 641 ar->connect_ctrl_flags, nw_subtype); 642 643 if (sme->bg_scan_period == 0) { 644 /* disable background scan if period is 0 */ 645 sme->bg_scan_period = 0xffff; 646 } else if (sme->bg_scan_period == -1) { 647 /* configure default value if not specified */ 648 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 649 } 650 651 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 652 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 653 654 up(&ar->sem); 655 656 if (status == -EINVAL) { 657 memset(vif->ssid, 0, sizeof(vif->ssid)); 658 vif->ssid_len = 0; 659 ath6kl_err("invalid request\n"); 660 return -ENOENT; 661 } else if (status) { 662 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 663 return -EIO; 664 } 665 666 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 667 ((vif->auth_mode == WPA_PSK_AUTH) || 668 (vif->auth_mode == WPA2_PSK_AUTH))) { 669 mod_timer(&vif->disconnect_timer, 670 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 671 } 672 673 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 674 set_bit(CONNECT_PEND, &vif->flags); 675 676 return 0; 677 } 678 679 static struct cfg80211_bss * 680 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 681 enum network_type nw_type, 682 const u8 *bssid, 683 struct ieee80211_channel *chan, 684 const u8 *beacon_ie, 685 size_t beacon_ie_len) 686 { 687 struct ath6kl *ar = vif->ar; 688 struct cfg80211_bss *bss; 689 u16 cap_mask, cap_val; 690 u8 *ie; 691 692 if (nw_type & ADHOC_NETWORK) { 693 cap_mask = WLAN_CAPABILITY_IBSS; 694 cap_val = WLAN_CAPABILITY_IBSS; 695 } else { 696 cap_mask = WLAN_CAPABILITY_ESS; 697 cap_val = WLAN_CAPABILITY_ESS; 698 } 699 700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 701 vif->ssid, vif->ssid_len, 702 cap_mask, cap_val); 703 if (bss == NULL) { 704 /* 705 * Since cfg80211 may not yet know about the BSS, 706 * generate a partial entry until the first BSS info 707 * event becomes available. 708 * 709 * Prepend SSID element since it is not included in the Beacon 710 * IEs from the target. 711 */ 712 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 713 if (ie == NULL) 714 return NULL; 715 ie[0] = WLAN_EID_SSID; 716 ie[1] = vif->ssid_len; 717 memcpy(ie + 2, vif->ssid, vif->ssid_len); 718 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 719 bss = cfg80211_inform_bss(ar->wiphy, chan, 720 CFG80211_BSS_FTYPE_UNKNOWN, 721 bssid, 0, cap_val, 100, 722 ie, 2 + vif->ssid_len + beacon_ie_len, 723 0, GFP_KERNEL); 724 if (bss) 725 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 726 "added bss %pM to cfg80211\n", bssid); 727 kfree(ie); 728 } else { 729 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 730 } 731 732 return bss; 733 } 734 735 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 736 u8 *bssid, u16 listen_intvl, 737 u16 beacon_intvl, 738 enum network_type nw_type, 739 u8 beacon_ie_len, u8 assoc_req_len, 740 u8 assoc_resp_len, u8 *assoc_info) 741 { 742 struct ieee80211_channel *chan; 743 struct ath6kl *ar = vif->ar; 744 struct cfg80211_bss *bss; 745 746 /* capinfo + listen interval */ 747 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 748 749 /* capinfo + status code + associd */ 750 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 751 752 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 753 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 754 assoc_resp_ie_offset; 755 756 assoc_req_len -= assoc_req_ie_offset; 757 assoc_resp_len -= assoc_resp_ie_offset; 758 759 /* 760 * Store Beacon interval here; DTIM period will be available only once 761 * a Beacon frame from the AP is seen. 762 */ 763 vif->assoc_bss_beacon_int = beacon_intvl; 764 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 765 766 if (nw_type & ADHOC_NETWORK) { 767 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 768 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 769 "%s: ath6k not in ibss mode\n", __func__); 770 return; 771 } 772 } 773 774 if (nw_type & INFRA_NETWORK) { 775 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 776 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 777 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 778 "%s: ath6k not in station mode\n", __func__); 779 return; 780 } 781 } 782 783 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 784 785 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 786 assoc_info, beacon_ie_len); 787 if (!bss) { 788 ath6kl_err("could not add cfg80211 bss entry\n"); 789 return; 790 } 791 792 if (nw_type & ADHOC_NETWORK) { 793 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 794 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 795 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL); 796 cfg80211_put_bss(ar->wiphy, bss); 797 return; 798 } 799 800 if (vif->sme_state == SME_CONNECTING) { 801 /* inform connect result to cfg80211 */ 802 vif->sme_state = SME_CONNECTED; 803 cfg80211_connect_result(vif->ndev, bssid, 804 assoc_req_ie, assoc_req_len, 805 assoc_resp_ie, assoc_resp_len, 806 WLAN_STATUS_SUCCESS, GFP_KERNEL); 807 cfg80211_put_bss(ar->wiphy, bss); 808 } else if (vif->sme_state == SME_CONNECTED) { 809 /* inform roam event to cfg80211 */ 810 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 811 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 812 } 813 } 814 815 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 816 struct net_device *dev, u16 reason_code) 817 { 818 struct ath6kl *ar = ath6kl_priv(dev); 819 struct ath6kl_vif *vif = netdev_priv(dev); 820 821 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 822 reason_code); 823 824 ath6kl_cfg80211_sscan_disable(vif); 825 826 if (!ath6kl_cfg80211_ready(vif)) 827 return -EIO; 828 829 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 830 ath6kl_err("busy, destroy in progress\n"); 831 return -EBUSY; 832 } 833 834 if (down_interruptible(&ar->sem)) { 835 ath6kl_err("busy, couldn't get access\n"); 836 return -ERESTARTSYS; 837 } 838 839 vif->reconnect_flag = 0; 840 ath6kl_disconnect(vif); 841 memset(vif->ssid, 0, sizeof(vif->ssid)); 842 vif->ssid_len = 0; 843 844 if (!test_bit(SKIP_SCAN, &ar->flag)) 845 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 846 847 up(&ar->sem); 848 849 vif->sme_state = SME_DISCONNECTED; 850 851 return 0; 852 } 853 854 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 855 u8 *bssid, u8 assoc_resp_len, 856 u8 *assoc_info, u16 proto_reason) 857 { 858 struct ath6kl *ar = vif->ar; 859 860 if (vif->scan_req) { 861 cfg80211_scan_done(vif->scan_req, true); 862 vif->scan_req = NULL; 863 } 864 865 if (vif->nw_type & ADHOC_NETWORK) { 866 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) 867 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 868 "%s: ath6k not in ibss mode\n", __func__); 869 return; 870 } 871 872 if (vif->nw_type & INFRA_NETWORK) { 873 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 874 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 875 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 876 "%s: ath6k not in station mode\n", __func__); 877 return; 878 } 879 } 880 881 clear_bit(CONNECT_PEND, &vif->flags); 882 883 if (vif->sme_state == SME_CONNECTING) { 884 cfg80211_connect_result(vif->ndev, 885 bssid, NULL, 0, 886 NULL, 0, 887 WLAN_STATUS_UNSPECIFIED_FAILURE, 888 GFP_KERNEL); 889 } else if (vif->sme_state == SME_CONNECTED) { 890 cfg80211_disconnected(vif->ndev, proto_reason, 891 NULL, 0, GFP_KERNEL); 892 } 893 894 vif->sme_state = SME_DISCONNECTED; 895 896 /* 897 * Send a disconnect command to target when a disconnect event is 898 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 899 * request from host) to make the firmware stop trying to connect even 900 * after giving disconnect event. There will be one more disconnect 901 * event for this disconnect command with reason code DISCONNECT_CMD 902 * which won't be notified to cfg80211. 903 */ 904 if (reason != DISCONNECT_CMD) 905 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 906 } 907 908 static int ath6kl_set_probed_ssids(struct ath6kl *ar, 909 struct ath6kl_vif *vif, 910 struct cfg80211_ssid *ssids, int n_ssids, 911 struct cfg80211_match_set *match_set, 912 int n_match_ssid) 913 { 914 u8 i, j, index_to_add, ssid_found = false; 915 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 916 917 memset(ssid_list, 0, sizeof(ssid_list)); 918 919 if (n_ssids > MAX_PROBED_SSIDS || 920 n_match_ssid > MAX_PROBED_SSIDS) 921 return -EINVAL; 922 923 for (i = 0; i < n_ssids; i++) { 924 memcpy(ssid_list[i].ssid.ssid, 925 ssids[i].ssid, 926 ssids[i].ssid_len); 927 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 928 929 if (ssids[i].ssid_len) 930 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 931 else 932 ssid_list[i].flag = ANY_SSID_FLAG; 933 934 if (n_match_ssid == 0) 935 ssid_list[i].flag |= MATCH_SSID_FLAG; 936 } 937 938 index_to_add = i; 939 940 for (i = 0; i < n_match_ssid; i++) { 941 ssid_found = false; 942 943 for (j = 0; j < n_ssids; j++) { 944 if ((match_set[i].ssid.ssid_len == 945 ssid_list[j].ssid.ssid_len) && 946 (!memcmp(ssid_list[j].ssid.ssid, 947 match_set[i].ssid.ssid, 948 match_set[i].ssid.ssid_len))) { 949 ssid_list[j].flag |= MATCH_SSID_FLAG; 950 ssid_found = true; 951 break; 952 } 953 } 954 955 if (ssid_found) 956 continue; 957 958 if (index_to_add >= MAX_PROBED_SSIDS) 959 continue; 960 961 ssid_list[index_to_add].ssid.ssid_len = 962 match_set[i].ssid.ssid_len; 963 memcpy(ssid_list[index_to_add].ssid.ssid, 964 match_set[i].ssid.ssid, 965 match_set[i].ssid.ssid_len); 966 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 967 index_to_add++; 968 } 969 970 for (i = 0; i < index_to_add; i++) { 971 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 972 ssid_list[i].flag, 973 ssid_list[i].ssid.ssid_len, 974 ssid_list[i].ssid.ssid); 975 } 976 977 /* Make sure no old entries are left behind */ 978 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 979 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 980 DISABLE_SSID_FLAG, 0, NULL); 981 } 982 983 return 0; 984 } 985 986 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 987 struct cfg80211_scan_request *request) 988 { 989 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 990 struct ath6kl *ar = ath6kl_priv(vif->ndev); 991 s8 n_channels = 0; 992 u16 *channels = NULL; 993 int ret = 0; 994 u32 force_fg_scan = 0; 995 996 if (!ath6kl_cfg80211_ready(vif)) 997 return -EIO; 998 999 ath6kl_cfg80211_sscan_disable(vif); 1000 1001 if (!ar->usr_bss_filter) { 1002 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1003 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1004 ALL_BSS_FILTER, 0); 1005 if (ret) { 1006 ath6kl_err("couldn't set bss filtering\n"); 1007 return ret; 1008 } 1009 } 1010 1011 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 1012 request->n_ssids, NULL, 0); 1013 if (ret < 0) 1014 return ret; 1015 1016 /* this also clears IE in fw if it's not set */ 1017 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1018 WMI_FRAME_PROBE_REQ, 1019 request->ie, request->ie_len); 1020 if (ret) { 1021 ath6kl_err("failed to set Probe Request appie for scan\n"); 1022 return ret; 1023 } 1024 1025 /* 1026 * Scan only the requested channels if the request specifies a set of 1027 * channels. If the list is longer than the target supports, do not 1028 * configure the list and instead, scan all available channels. 1029 */ 1030 if (request->n_channels > 0 && 1031 request->n_channels <= WMI_MAX_CHANNELS) { 1032 u8 i; 1033 1034 n_channels = request->n_channels; 1035 1036 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1037 if (channels == NULL) { 1038 ath6kl_warn("failed to set scan channels, scan all channels"); 1039 n_channels = 0; 1040 } 1041 1042 for (i = 0; i < n_channels; i++) 1043 channels[i] = request->channels[i]->center_freq; 1044 } 1045 1046 if (test_bit(CONNECTED, &vif->flags)) 1047 force_fg_scan = 1; 1048 1049 vif->scan_req = request; 1050 1051 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1052 WMI_LONG_SCAN, force_fg_scan, 1053 false, 0, 1054 ATH6KL_FG_SCAN_INTERVAL, 1055 n_channels, channels, 1056 request->no_cck, 1057 request->rates); 1058 if (ret) { 1059 ath6kl_err("failed to start scan: %d\n", ret); 1060 vif->scan_req = NULL; 1061 } 1062 1063 kfree(channels); 1064 1065 return ret; 1066 } 1067 1068 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1069 { 1070 struct ath6kl *ar = vif->ar; 1071 int i; 1072 1073 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1074 aborted ? " aborted" : ""); 1075 1076 if (!vif->scan_req) 1077 return; 1078 1079 if (aborted) 1080 goto out; 1081 1082 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1083 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1084 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1085 i + 1, DISABLE_SSID_FLAG, 1086 0, NULL); 1087 } 1088 } 1089 1090 out: 1091 cfg80211_scan_done(vif->scan_req, aborted); 1092 vif->scan_req = NULL; 1093 } 1094 1095 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1096 enum wmi_phy_mode mode) 1097 { 1098 struct cfg80211_chan_def chandef; 1099 1100 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1101 "channel switch notify nw_type %d freq %d mode %d\n", 1102 vif->nw_type, freq, mode); 1103 1104 cfg80211_chandef_create(&chandef, 1105 ieee80211_get_channel(vif->ar->wiphy, freq), 1106 (mode == WMI_11G_HT20) ? 1107 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1108 1109 mutex_lock(&vif->wdev.mtx); 1110 cfg80211_ch_switch_notify(vif->ndev, &chandef); 1111 mutex_unlock(&vif->wdev.mtx); 1112 } 1113 1114 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1115 u8 key_index, bool pairwise, 1116 const u8 *mac_addr, 1117 struct key_params *params) 1118 { 1119 struct ath6kl *ar = ath6kl_priv(ndev); 1120 struct ath6kl_vif *vif = netdev_priv(ndev); 1121 struct ath6kl_key *key = NULL; 1122 int seq_len; 1123 u8 key_usage; 1124 u8 key_type; 1125 1126 if (!ath6kl_cfg80211_ready(vif)) 1127 return -EIO; 1128 1129 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1130 if (params->key_len != WMI_KRK_LEN) 1131 return -EINVAL; 1132 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1133 params->key); 1134 } 1135 1136 if (key_index > WMI_MAX_KEY_INDEX) { 1137 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1138 "%s: key index %d out of bounds\n", __func__, 1139 key_index); 1140 return -ENOENT; 1141 } 1142 1143 key = &vif->keys[key_index]; 1144 memset(key, 0, sizeof(struct ath6kl_key)); 1145 1146 if (pairwise) 1147 key_usage = PAIRWISE_USAGE; 1148 else 1149 key_usage = GROUP_USAGE; 1150 1151 seq_len = params->seq_len; 1152 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1153 seq_len > ATH6KL_KEY_SEQ_LEN) { 1154 /* Only first half of the WPI PN is configured */ 1155 seq_len = ATH6KL_KEY_SEQ_LEN; 1156 } 1157 if (params->key_len > WLAN_MAX_KEY_LEN || 1158 seq_len > sizeof(key->seq)) 1159 return -EINVAL; 1160 1161 key->key_len = params->key_len; 1162 memcpy(key->key, params->key, key->key_len); 1163 key->seq_len = seq_len; 1164 memcpy(key->seq, params->seq, key->seq_len); 1165 key->cipher = params->cipher; 1166 1167 switch (key->cipher) { 1168 case WLAN_CIPHER_SUITE_WEP40: 1169 case WLAN_CIPHER_SUITE_WEP104: 1170 key_type = WEP_CRYPT; 1171 break; 1172 1173 case WLAN_CIPHER_SUITE_TKIP: 1174 key_type = TKIP_CRYPT; 1175 break; 1176 1177 case WLAN_CIPHER_SUITE_CCMP: 1178 key_type = AES_CRYPT; 1179 break; 1180 case WLAN_CIPHER_SUITE_SMS4: 1181 key_type = WAPI_CRYPT; 1182 break; 1183 1184 default: 1185 return -ENOTSUPP; 1186 } 1187 1188 if (((vif->auth_mode == WPA_PSK_AUTH) || 1189 (vif->auth_mode == WPA2_PSK_AUTH)) && 1190 (key_usage & GROUP_USAGE)) 1191 del_timer(&vif->disconnect_timer); 1192 1193 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1194 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1195 __func__, key_index, key->key_len, key_type, 1196 key_usage, key->seq_len); 1197 1198 if (vif->nw_type == AP_NETWORK && !pairwise && 1199 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1200 key_type == WAPI_CRYPT)) { 1201 ar->ap_mode_bkey.valid = true; 1202 ar->ap_mode_bkey.key_index = key_index; 1203 ar->ap_mode_bkey.key_type = key_type; 1204 ar->ap_mode_bkey.key_len = key->key_len; 1205 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1206 if (!test_bit(CONNECTED, &vif->flags)) { 1207 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1208 "Delay initial group key configuration until AP mode has been started\n"); 1209 /* 1210 * The key will be set in ath6kl_connect_ap_mode() once 1211 * the connected event is received from the target. 1212 */ 1213 return 0; 1214 } 1215 } 1216 1217 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1218 !test_bit(CONNECTED, &vif->flags)) { 1219 /* 1220 * Store the key locally so that it can be re-configured after 1221 * the AP mode has properly started 1222 * (ath6kl_install_statioc_wep_keys). 1223 */ 1224 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1225 "Delay WEP key configuration until AP mode has been started\n"); 1226 vif->wep_key_list[key_index].key_len = key->key_len; 1227 memcpy(vif->wep_key_list[key_index].key, key->key, 1228 key->key_len); 1229 return 0; 1230 } 1231 1232 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1233 key_type, key_usage, key->key_len, 1234 key->seq, key->seq_len, key->key, 1235 KEY_OP_INIT_VAL, 1236 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1237 } 1238 1239 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1240 u8 key_index, bool pairwise, 1241 const u8 *mac_addr) 1242 { 1243 struct ath6kl *ar = ath6kl_priv(ndev); 1244 struct ath6kl_vif *vif = netdev_priv(ndev); 1245 1246 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1247 1248 if (!ath6kl_cfg80211_ready(vif)) 1249 return -EIO; 1250 1251 if (key_index > WMI_MAX_KEY_INDEX) { 1252 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1253 "%s: key index %d out of bounds\n", __func__, 1254 key_index); 1255 return -ENOENT; 1256 } 1257 1258 if (!vif->keys[key_index].key_len) { 1259 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1260 "%s: index %d is empty\n", __func__, key_index); 1261 return 0; 1262 } 1263 1264 vif->keys[key_index].key_len = 0; 1265 1266 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1267 } 1268 1269 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1270 u8 key_index, bool pairwise, 1271 const u8 *mac_addr, void *cookie, 1272 void (*callback) (void *cookie, 1273 struct key_params *)) 1274 { 1275 struct ath6kl_vif *vif = netdev_priv(ndev); 1276 struct ath6kl_key *key = NULL; 1277 struct key_params params; 1278 1279 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1280 1281 if (!ath6kl_cfg80211_ready(vif)) 1282 return -EIO; 1283 1284 if (key_index > WMI_MAX_KEY_INDEX) { 1285 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1286 "%s: key index %d out of bounds\n", __func__, 1287 key_index); 1288 return -ENOENT; 1289 } 1290 1291 key = &vif->keys[key_index]; 1292 memset(¶ms, 0, sizeof(params)); 1293 params.cipher = key->cipher; 1294 params.key_len = key->key_len; 1295 params.seq_len = key->seq_len; 1296 params.seq = key->seq; 1297 params.key = key->key; 1298 1299 callback(cookie, ¶ms); 1300 1301 return key->key_len ? 0 : -ENOENT; 1302 } 1303 1304 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1305 struct net_device *ndev, 1306 u8 key_index, bool unicast, 1307 bool multicast) 1308 { 1309 struct ath6kl *ar = ath6kl_priv(ndev); 1310 struct ath6kl_vif *vif = netdev_priv(ndev); 1311 struct ath6kl_key *key = NULL; 1312 u8 key_usage; 1313 enum crypto_type key_type = NONE_CRYPT; 1314 1315 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1316 1317 if (!ath6kl_cfg80211_ready(vif)) 1318 return -EIO; 1319 1320 if (key_index > WMI_MAX_KEY_INDEX) { 1321 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1322 "%s: key index %d out of bounds\n", 1323 __func__, key_index); 1324 return -ENOENT; 1325 } 1326 1327 if (!vif->keys[key_index].key_len) { 1328 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1329 __func__, key_index); 1330 return -EINVAL; 1331 } 1332 1333 vif->def_txkey_index = key_index; 1334 key = &vif->keys[vif->def_txkey_index]; 1335 key_usage = GROUP_USAGE; 1336 if (vif->prwise_crypto == WEP_CRYPT) 1337 key_usage |= TX_USAGE; 1338 if (unicast) 1339 key_type = vif->prwise_crypto; 1340 if (multicast) 1341 key_type = vif->grp_crypto; 1342 1343 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1344 return 0; /* Delay until AP mode has been started */ 1345 1346 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1347 vif->def_txkey_index, 1348 key_type, key_usage, 1349 key->key_len, key->seq, key->seq_len, 1350 key->key, 1351 KEY_OP_INIT_VAL, NULL, 1352 SYNC_BOTH_WMIFLAG); 1353 } 1354 1355 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1356 bool ismcast) 1357 { 1358 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1359 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1360 1361 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1362 (ismcast ? NL80211_KEYTYPE_GROUP : 1363 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1364 GFP_KERNEL); 1365 } 1366 1367 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1368 { 1369 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1370 struct ath6kl_vif *vif; 1371 int ret; 1372 1373 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1374 changed); 1375 1376 vif = ath6kl_vif_first(ar); 1377 if (!vif) 1378 return -EIO; 1379 1380 if (!ath6kl_cfg80211_ready(vif)) 1381 return -EIO; 1382 1383 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1384 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1385 if (ret != 0) { 1386 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1387 return -EIO; 1388 } 1389 } 1390 1391 return 0; 1392 } 1393 1394 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1395 struct wireless_dev *wdev, 1396 enum nl80211_tx_power_setting type, 1397 int mbm) 1398 { 1399 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1400 struct ath6kl_vif *vif; 1401 int dbm = MBM_TO_DBM(mbm); 1402 1403 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1404 type, dbm); 1405 1406 vif = ath6kl_vif_first(ar); 1407 if (!vif) 1408 return -EIO; 1409 1410 if (!ath6kl_cfg80211_ready(vif)) 1411 return -EIO; 1412 1413 switch (type) { 1414 case NL80211_TX_POWER_AUTOMATIC: 1415 return 0; 1416 case NL80211_TX_POWER_LIMITED: 1417 ar->tx_pwr = dbm; 1418 break; 1419 default: 1420 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1421 __func__, type); 1422 return -EOPNOTSUPP; 1423 } 1424 1425 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1426 1427 return 0; 1428 } 1429 1430 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1431 struct wireless_dev *wdev, 1432 int *dbm) 1433 { 1434 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1435 struct ath6kl_vif *vif; 1436 1437 vif = ath6kl_vif_first(ar); 1438 if (!vif) 1439 return -EIO; 1440 1441 if (!ath6kl_cfg80211_ready(vif)) 1442 return -EIO; 1443 1444 if (test_bit(CONNECTED, &vif->flags)) { 1445 ar->tx_pwr = 0; 1446 1447 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1448 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1449 return -EIO; 1450 } 1451 1452 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1453 5 * HZ); 1454 1455 if (signal_pending(current)) { 1456 ath6kl_err("target did not respond\n"); 1457 return -EINTR; 1458 } 1459 } 1460 1461 *dbm = ar->tx_pwr; 1462 return 0; 1463 } 1464 1465 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1466 struct net_device *dev, 1467 bool pmgmt, int timeout) 1468 { 1469 struct ath6kl *ar = ath6kl_priv(dev); 1470 struct wmi_power_mode_cmd mode; 1471 struct ath6kl_vif *vif = netdev_priv(dev); 1472 1473 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1474 __func__, pmgmt, timeout); 1475 1476 if (!ath6kl_cfg80211_ready(vif)) 1477 return -EIO; 1478 1479 if (pmgmt) { 1480 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1481 mode.pwr_mode = REC_POWER; 1482 } else { 1483 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1484 mode.pwr_mode = MAX_PERF_POWER; 1485 } 1486 1487 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1488 mode.pwr_mode) != 0) { 1489 ath6kl_err("wmi_powermode_cmd failed\n"); 1490 return -EIO; 1491 } 1492 1493 return 0; 1494 } 1495 1496 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1497 const char *name, 1498 enum nl80211_iftype type, 1499 u32 *flags, 1500 struct vif_params *params) 1501 { 1502 struct ath6kl *ar = wiphy_priv(wiphy); 1503 struct wireless_dev *wdev; 1504 u8 if_idx, nw_type; 1505 1506 if (ar->num_vif == ar->vif_max) { 1507 ath6kl_err("Reached maximum number of supported vif\n"); 1508 return ERR_PTR(-EINVAL); 1509 } 1510 1511 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1512 ath6kl_err("Not a supported interface type\n"); 1513 return ERR_PTR(-EINVAL); 1514 } 1515 1516 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1517 if (!wdev) 1518 return ERR_PTR(-ENOMEM); 1519 1520 ar->num_vif++; 1521 1522 return wdev; 1523 } 1524 1525 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1526 struct wireless_dev *wdev) 1527 { 1528 struct ath6kl *ar = wiphy_priv(wiphy); 1529 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1530 1531 spin_lock_bh(&ar->list_lock); 1532 list_del(&vif->list); 1533 spin_unlock_bh(&ar->list_lock); 1534 1535 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1536 1537 rtnl_lock(); 1538 ath6kl_cfg80211_vif_cleanup(vif); 1539 rtnl_unlock(); 1540 1541 return 0; 1542 } 1543 1544 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1545 struct net_device *ndev, 1546 enum nl80211_iftype type, u32 *flags, 1547 struct vif_params *params) 1548 { 1549 struct ath6kl_vif *vif = netdev_priv(ndev); 1550 int i; 1551 1552 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1553 1554 /* 1555 * Don't bring up p2p on an interface which is not initialized 1556 * for p2p operation where fw does not have capability to switch 1557 * dynamically between non-p2p and p2p type interface. 1558 */ 1559 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1560 vif->ar->fw_capabilities) && 1561 (type == NL80211_IFTYPE_P2P_CLIENT || 1562 type == NL80211_IFTYPE_P2P_GO)) { 1563 if (vif->ar->vif_max == 1) { 1564 if (vif->fw_vif_idx != 0) 1565 return -EINVAL; 1566 else 1567 goto set_iface_type; 1568 } 1569 1570 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1571 if (i == vif->fw_vif_idx) 1572 break; 1573 } 1574 1575 if (i == vif->ar->vif_max) { 1576 ath6kl_err("Invalid interface to bring up P2P\n"); 1577 return -EINVAL; 1578 } 1579 } 1580 1581 /* need to clean up enhanced bmiss detection fw state */ 1582 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1583 1584 set_iface_type: 1585 switch (type) { 1586 case NL80211_IFTYPE_STATION: 1587 case NL80211_IFTYPE_P2P_CLIENT: 1588 vif->next_mode = INFRA_NETWORK; 1589 break; 1590 case NL80211_IFTYPE_ADHOC: 1591 vif->next_mode = ADHOC_NETWORK; 1592 break; 1593 case NL80211_IFTYPE_AP: 1594 case NL80211_IFTYPE_P2P_GO: 1595 vif->next_mode = AP_NETWORK; 1596 break; 1597 default: 1598 ath6kl_err("invalid interface type %u\n", type); 1599 return -EOPNOTSUPP; 1600 } 1601 1602 vif->wdev.iftype = type; 1603 1604 return 0; 1605 } 1606 1607 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1608 struct net_device *dev, 1609 struct cfg80211_ibss_params *ibss_param) 1610 { 1611 struct ath6kl *ar = ath6kl_priv(dev); 1612 struct ath6kl_vif *vif = netdev_priv(dev); 1613 int status; 1614 1615 if (!ath6kl_cfg80211_ready(vif)) 1616 return -EIO; 1617 1618 vif->ssid_len = ibss_param->ssid_len; 1619 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1620 1621 if (ibss_param->chandef.chan) 1622 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1623 1624 if (ibss_param->channel_fixed) { 1625 /* 1626 * TODO: channel_fixed: The channel should be fixed, do not 1627 * search for IBSSs to join on other channels. Target 1628 * firmware does not support this feature, needs to be 1629 * updated. 1630 */ 1631 return -EOPNOTSUPP; 1632 } 1633 1634 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1635 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1636 memcpy(vif->req_bssid, ibss_param->bssid, 1637 sizeof(vif->req_bssid)); 1638 1639 ath6kl_set_wpa_version(vif, 0); 1640 1641 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1642 if (status) 1643 return status; 1644 1645 if (ibss_param->privacy) { 1646 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1647 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1648 } else { 1649 ath6kl_set_cipher(vif, 0, true); 1650 ath6kl_set_cipher(vif, 0, false); 1651 } 1652 1653 vif->nw_type = vif->next_mode; 1654 1655 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1656 "%s: connect called with authmode %d dot11 auth %d" 1657 " PW crypto %d PW crypto len %d GRP crypto %d" 1658 " GRP crypto len %d channel hint %u\n", 1659 __func__, 1660 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1661 vif->prwise_crypto_len, vif->grp_crypto, 1662 vif->grp_crypto_len, vif->ch_hint); 1663 1664 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1665 vif->dot11_auth_mode, vif->auth_mode, 1666 vif->prwise_crypto, 1667 vif->prwise_crypto_len, 1668 vif->grp_crypto, vif->grp_crypto_len, 1669 vif->ssid_len, vif->ssid, 1670 vif->req_bssid, vif->ch_hint, 1671 ar->connect_ctrl_flags, SUBTYPE_NONE); 1672 set_bit(CONNECT_PEND, &vif->flags); 1673 1674 return 0; 1675 } 1676 1677 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1678 struct net_device *dev) 1679 { 1680 struct ath6kl_vif *vif = netdev_priv(dev); 1681 1682 if (!ath6kl_cfg80211_ready(vif)) 1683 return -EIO; 1684 1685 ath6kl_disconnect(vif); 1686 memset(vif->ssid, 0, sizeof(vif->ssid)); 1687 vif->ssid_len = 0; 1688 1689 return 0; 1690 } 1691 1692 static const u32 cipher_suites[] = { 1693 WLAN_CIPHER_SUITE_WEP40, 1694 WLAN_CIPHER_SUITE_WEP104, 1695 WLAN_CIPHER_SUITE_TKIP, 1696 WLAN_CIPHER_SUITE_CCMP, 1697 CCKM_KRK_CIPHER_SUITE, 1698 WLAN_CIPHER_SUITE_SMS4, 1699 }; 1700 1701 static bool is_rate_legacy(s32 rate) 1702 { 1703 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1704 6000, 9000, 12000, 18000, 24000, 1705 36000, 48000, 54000 1706 }; 1707 u8 i; 1708 1709 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1710 if (rate == legacy[i]) 1711 return true; 1712 1713 return false; 1714 } 1715 1716 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1717 { 1718 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1719 52000, 58500, 65000, 72200 1720 }; 1721 u8 i; 1722 1723 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1724 if (rate == ht20[i]) { 1725 if (i == ARRAY_SIZE(ht20) - 1) 1726 /* last rate uses sgi */ 1727 *sgi = true; 1728 else 1729 *sgi = false; 1730 1731 *mcs = i; 1732 return true; 1733 } 1734 } 1735 return false; 1736 } 1737 1738 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1739 { 1740 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1741 81000, 108000, 121500, 135000, 1742 150000 1743 }; 1744 u8 i; 1745 1746 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1747 if (rate == ht40[i]) { 1748 if (i == ARRAY_SIZE(ht40) - 1) 1749 /* last rate uses sgi */ 1750 *sgi = true; 1751 else 1752 *sgi = false; 1753 1754 *mcs = i; 1755 return true; 1756 } 1757 } 1758 1759 return false; 1760 } 1761 1762 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1763 const u8 *mac, struct station_info *sinfo) 1764 { 1765 struct ath6kl *ar = ath6kl_priv(dev); 1766 struct ath6kl_vif *vif = netdev_priv(dev); 1767 long left; 1768 bool sgi; 1769 s32 rate; 1770 int ret; 1771 u8 mcs; 1772 1773 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1774 return -ENOENT; 1775 1776 if (down_interruptible(&ar->sem)) 1777 return -EBUSY; 1778 1779 set_bit(STATS_UPDATE_PEND, &vif->flags); 1780 1781 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1782 1783 if (ret != 0) { 1784 up(&ar->sem); 1785 return -EIO; 1786 } 1787 1788 left = wait_event_interruptible_timeout(ar->event_wq, 1789 !test_bit(STATS_UPDATE_PEND, 1790 &vif->flags), 1791 WMI_TIMEOUT); 1792 1793 up(&ar->sem); 1794 1795 if (left == 0) 1796 return -ETIMEDOUT; 1797 else if (left < 0) 1798 return left; 1799 1800 if (vif->target_stats.rx_byte) { 1801 sinfo->rx_bytes = vif->target_stats.rx_byte; 1802 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES64); 1803 sinfo->rx_packets = vif->target_stats.rx_pkt; 1804 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS); 1805 } 1806 1807 if (vif->target_stats.tx_byte) { 1808 sinfo->tx_bytes = vif->target_stats.tx_byte; 1809 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES64); 1810 sinfo->tx_packets = vif->target_stats.tx_pkt; 1811 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS); 1812 } 1813 1814 sinfo->signal = vif->target_stats.cs_rssi; 1815 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); 1816 1817 rate = vif->target_stats.tx_ucast_rate; 1818 1819 if (is_rate_legacy(rate)) { 1820 sinfo->txrate.legacy = rate / 100; 1821 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1822 if (sgi) { 1823 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1824 sinfo->txrate.mcs = mcs - 1; 1825 } else { 1826 sinfo->txrate.mcs = mcs; 1827 } 1828 1829 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1830 sinfo->txrate.bw = RATE_INFO_BW_20; 1831 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1832 if (sgi) { 1833 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1834 sinfo->txrate.mcs = mcs - 1; 1835 } else { 1836 sinfo->txrate.mcs = mcs; 1837 } 1838 1839 sinfo->txrate.bw = RATE_INFO_BW_40; 1840 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1841 } else { 1842 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1843 "invalid rate from stats: %d\n", rate); 1844 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1845 return 0; 1846 } 1847 1848 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); 1849 1850 if (test_bit(CONNECTED, &vif->flags) && 1851 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1852 vif->nw_type == INFRA_NETWORK) { 1853 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); 1854 sinfo->bss_param.flags = 0; 1855 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1856 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1857 } 1858 1859 return 0; 1860 } 1861 1862 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1863 struct cfg80211_pmksa *pmksa) 1864 { 1865 struct ath6kl *ar = ath6kl_priv(netdev); 1866 struct ath6kl_vif *vif = netdev_priv(netdev); 1867 1868 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1869 pmksa->pmkid, true); 1870 } 1871 1872 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1873 struct cfg80211_pmksa *pmksa) 1874 { 1875 struct ath6kl *ar = ath6kl_priv(netdev); 1876 struct ath6kl_vif *vif = netdev_priv(netdev); 1877 1878 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1879 pmksa->pmkid, false); 1880 } 1881 1882 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1883 { 1884 struct ath6kl *ar = ath6kl_priv(netdev); 1885 struct ath6kl_vif *vif = netdev_priv(netdev); 1886 1887 if (test_bit(CONNECTED, &vif->flags)) 1888 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1889 vif->bssid, NULL, false); 1890 return 0; 1891 } 1892 1893 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1894 struct cfg80211_wowlan *wow, u32 *filter) 1895 { 1896 int ret, pos; 1897 u8 mask[WOW_PATTERN_SIZE]; 1898 u16 i; 1899 1900 /* Configure the patterns that we received from the user. */ 1901 for (i = 0; i < wow->n_patterns; i++) { 1902 /* 1903 * Convert given nl80211 specific mask value to equivalent 1904 * driver specific mask value and send it to the chip along 1905 * with patterns. For example, If the mask value defined in 1906 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1907 * then equivalent driver specific mask value is 1908 * "0xFF 0x00 0xFF 0x00". 1909 */ 1910 memset(&mask, 0, sizeof(mask)); 1911 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1912 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1913 mask[pos] = 0xFF; 1914 } 1915 /* 1916 * Note: Pattern's offset is not passed as part of wowlan 1917 * parameter from CFG layer. So it's always passed as ZERO 1918 * to the firmware. It means, given WOW patterns are always 1919 * matched from the first byte of received pkt in the firmware. 1920 */ 1921 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1922 vif->fw_vif_idx, WOW_LIST_ID, 1923 wow->patterns[i].pattern_len, 1924 0 /* pattern offset */, 1925 wow->patterns[i].pattern, mask); 1926 if (ret) 1927 return ret; 1928 } 1929 1930 if (wow->disconnect) 1931 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1932 1933 if (wow->magic_pkt) 1934 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1935 1936 if (wow->gtk_rekey_failure) 1937 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1938 1939 if (wow->eap_identity_req) 1940 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1941 1942 if (wow->four_way_handshake) 1943 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1944 1945 return 0; 1946 } 1947 1948 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1949 { 1950 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1951 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1952 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1953 0x00, 0x08 }; 1954 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1955 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1956 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1957 0x00, 0x7f }; 1958 u8 unicst_offset = 0; 1959 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1960 static const u8 arp_mask[] = { 0xff, 0xff }; 1961 u8 arp_offset = 20; 1962 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1963 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1964 u8 discvr_offset = 38; 1965 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1966 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1970 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1971 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1972 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1973 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1974 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1975 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1976 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1977 u8 dhcp_offset = 0; 1978 int ret; 1979 1980 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1981 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1982 vif->fw_vif_idx, WOW_LIST_ID, 1983 sizeof(unicst_pattern), unicst_offset, 1984 unicst_pattern, unicst_mask); 1985 if (ret) { 1986 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1987 return ret; 1988 } 1989 1990 /* Setup all ARP pkt pattern */ 1991 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1992 vif->fw_vif_idx, WOW_LIST_ID, 1993 sizeof(arp_pattern), arp_offset, 1994 arp_pattern, arp_mask); 1995 if (ret) { 1996 ath6kl_err("failed to add WOW ARP pattern\n"); 1997 return ret; 1998 } 1999 2000 /* 2001 * Setup multicast pattern for mDNS 224.0.0.251, 2002 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2003 */ 2004 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2005 vif->fw_vif_idx, WOW_LIST_ID, 2006 sizeof(discvr_pattern), discvr_offset, 2007 discvr_pattern, discvr_mask); 2008 if (ret) { 2009 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2010 return ret; 2011 } 2012 2013 /* Setup all DHCP broadcast pkt pattern */ 2014 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2015 vif->fw_vif_idx, WOW_LIST_ID, 2016 sizeof(dhcp_pattern), dhcp_offset, 2017 dhcp_pattern, dhcp_mask); 2018 if (ret) { 2019 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 2020 return ret; 2021 } 2022 2023 return 0; 2024 } 2025 2026 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2027 { 2028 struct net_device *ndev = vif->ndev; 2029 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2030 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2031 u8 discvr_offset = 38; 2032 u8 mac_mask[ETH_ALEN]; 2033 int ret; 2034 2035 /* Setup unicast pkt pattern */ 2036 memset(mac_mask, 0xff, ETH_ALEN); 2037 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2038 vif->fw_vif_idx, WOW_LIST_ID, 2039 ETH_ALEN, 0, ndev->dev_addr, 2040 mac_mask); 2041 if (ret) { 2042 ath6kl_err("failed to add WOW unicast pattern\n"); 2043 return ret; 2044 } 2045 2046 /* 2047 * Setup multicast pattern for mDNS 224.0.0.251, 2048 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2049 */ 2050 if ((ndev->flags & IFF_ALLMULTI) || 2051 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2052 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2053 vif->fw_vif_idx, WOW_LIST_ID, 2054 sizeof(discvr_pattern), discvr_offset, 2055 discvr_pattern, discvr_mask); 2056 if (ret) { 2057 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2058 return ret; 2059 } 2060 } 2061 2062 return 0; 2063 } 2064 2065 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2066 { 2067 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2068 } 2069 2070 static bool is_ctrl_ep_empty(struct ath6kl *ar) 2071 { 2072 return !ar->tx_pending[ar->ctrl_ep]; 2073 } 2074 2075 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2076 { 2077 int ret, left; 2078 2079 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2080 2081 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2082 ATH6KL_HOST_MODE_ASLEEP); 2083 if (ret) 2084 return ret; 2085 2086 left = wait_event_interruptible_timeout(ar->event_wq, 2087 is_hsleep_mode_procsed(vif), 2088 WMI_TIMEOUT); 2089 if (left == 0) { 2090 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2091 ret = -ETIMEDOUT; 2092 } else if (left < 0) { 2093 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2094 left); 2095 ret = left; 2096 } 2097 2098 if (ar->tx_pending[ar->ctrl_ep]) { 2099 left = wait_event_interruptible_timeout(ar->event_wq, 2100 is_ctrl_ep_empty(ar), 2101 WMI_TIMEOUT); 2102 if (left == 0) { 2103 ath6kl_warn("clear wmi ctrl data timeout\n"); 2104 ret = -ETIMEDOUT; 2105 } else if (left < 0) { 2106 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2107 ret = left; 2108 } 2109 } 2110 2111 return ret; 2112 } 2113 2114 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2115 struct cfg80211_wowlan *wow, u32 *filter) 2116 { 2117 struct ath6kl *ar = vif->ar; 2118 struct in_device *in_dev; 2119 struct in_ifaddr *ifa; 2120 int ret; 2121 u16 i, bmiss_time; 2122 __be32 ips[MAX_IP_ADDRS]; 2123 u8 index = 0; 2124 2125 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2126 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2127 ar->fw_capabilities)) { 2128 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2129 vif->fw_vif_idx, false); 2130 if (ret) 2131 return ret; 2132 } 2133 2134 /* Clear existing WOW patterns */ 2135 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2136 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2137 WOW_LIST_ID, i); 2138 2139 /* 2140 * Skip the default WOW pattern configuration 2141 * if the driver receives any WOW patterns from 2142 * the user. 2143 */ 2144 if (wow) 2145 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2146 else if (vif->nw_type == AP_NETWORK) 2147 ret = ath6kl_wow_ap(ar, vif); 2148 else 2149 ret = ath6kl_wow_sta(ar, vif); 2150 2151 if (ret) 2152 return ret; 2153 2154 netif_stop_queue(vif->ndev); 2155 2156 if (vif->nw_type != AP_NETWORK) { 2157 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2158 ATH6KL_MAX_WOW_LISTEN_INTL, 2159 0); 2160 if (ret) 2161 return ret; 2162 2163 /* Set listen interval x 15 times as bmiss time */ 2164 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2165 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2166 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2167 2168 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2169 bmiss_time, 0); 2170 if (ret) 2171 return ret; 2172 2173 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2174 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2175 0, 0, 0, 0); 2176 if (ret) 2177 return ret; 2178 } 2179 2180 /* Setup own IP addr for ARP agent. */ 2181 in_dev = __in_dev_get_rtnl(vif->ndev); 2182 if (!in_dev) 2183 return 0; 2184 2185 ifa = in_dev->ifa_list; 2186 memset(&ips, 0, sizeof(ips)); 2187 2188 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2189 while (index < MAX_IP_ADDRS && ifa) { 2190 ips[index] = ifa->ifa_local; 2191 ifa = ifa->ifa_next; 2192 index++; 2193 } 2194 2195 if (ifa) { 2196 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2197 return -EINVAL; 2198 } 2199 2200 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2201 if (ret) { 2202 ath6kl_err("fail to setup ip for arp agent\n"); 2203 return ret; 2204 } 2205 2206 return ret; 2207 } 2208 2209 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2210 { 2211 struct ath6kl_vif *first_vif, *vif; 2212 int ret = 0; 2213 u32 filter = 0; 2214 bool connected = false; 2215 2216 /* enter / leave wow suspend on first vif always */ 2217 first_vif = ath6kl_vif_first(ar); 2218 if (WARN_ON(unlikely(!first_vif)) || 2219 !ath6kl_cfg80211_ready(first_vif)) 2220 return -EIO; 2221 2222 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2223 return -EINVAL; 2224 2225 /* install filters for each connected vif */ 2226 spin_lock_bh(&ar->list_lock); 2227 list_for_each_entry(vif, &ar->vif_list, list) { 2228 if (!test_bit(CONNECTED, &vif->flags) || 2229 !ath6kl_cfg80211_ready(vif)) 2230 continue; 2231 connected = true; 2232 2233 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2234 if (ret) 2235 break; 2236 } 2237 spin_unlock_bh(&ar->list_lock); 2238 2239 if (!connected) 2240 return -ENOTCONN; 2241 else if (ret) 2242 return ret; 2243 2244 ar->state = ATH6KL_STATE_SUSPENDING; 2245 2246 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2247 ATH6KL_WOW_MODE_ENABLE, 2248 filter, 2249 WOW_HOST_REQ_DELAY); 2250 if (ret) 2251 return ret; 2252 2253 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2254 } 2255 2256 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2257 { 2258 struct ath6kl *ar = vif->ar; 2259 int ret; 2260 2261 if (vif->nw_type != AP_NETWORK) { 2262 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2263 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2264 if (ret) 2265 return ret; 2266 2267 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2268 vif->listen_intvl_t, 0); 2269 if (ret) 2270 return ret; 2271 2272 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2273 vif->bmiss_time_t, 0); 2274 if (ret) 2275 return ret; 2276 } 2277 2278 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2279 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2280 ar->fw_capabilities)) { 2281 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2282 vif->fw_vif_idx, true); 2283 if (ret) 2284 return ret; 2285 } 2286 2287 netif_wake_queue(vif->ndev); 2288 2289 return 0; 2290 } 2291 2292 static int ath6kl_wow_resume(struct ath6kl *ar) 2293 { 2294 struct ath6kl_vif *vif; 2295 int ret; 2296 2297 vif = ath6kl_vif_first(ar); 2298 if (WARN_ON(unlikely(!vif)) || 2299 !ath6kl_cfg80211_ready(vif)) 2300 return -EIO; 2301 2302 ar->state = ATH6KL_STATE_RESUMING; 2303 2304 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2305 ATH6KL_HOST_MODE_AWAKE); 2306 if (ret) { 2307 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2308 ret); 2309 goto cleanup; 2310 } 2311 2312 spin_lock_bh(&ar->list_lock); 2313 list_for_each_entry(vif, &ar->vif_list, list) { 2314 if (!test_bit(CONNECTED, &vif->flags) || 2315 !ath6kl_cfg80211_ready(vif)) 2316 continue; 2317 ret = ath6kl_wow_resume_vif(vif); 2318 if (ret) 2319 break; 2320 } 2321 spin_unlock_bh(&ar->list_lock); 2322 2323 if (ret) 2324 goto cleanup; 2325 2326 ar->state = ATH6KL_STATE_ON; 2327 return 0; 2328 2329 cleanup: 2330 ar->state = ATH6KL_STATE_WOW; 2331 return ret; 2332 } 2333 2334 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2335 { 2336 struct ath6kl_vif *vif; 2337 int ret; 2338 2339 vif = ath6kl_vif_first(ar); 2340 if (!vif) 2341 return -EIO; 2342 2343 if (!test_bit(WMI_READY, &ar->flag)) { 2344 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2345 return -EIO; 2346 } 2347 2348 ath6kl_cfg80211_stop_all(ar); 2349 2350 /* Save the current power mode before enabling power save */ 2351 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2352 2353 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2354 if (ret) 2355 return ret; 2356 2357 /* Disable WOW mode */ 2358 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2359 ATH6KL_WOW_MODE_DISABLE, 2360 0, 0); 2361 if (ret) 2362 return ret; 2363 2364 /* Flush all non control pkts in TX path */ 2365 ath6kl_tx_data_cleanup(ar); 2366 2367 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2368 if (ret) 2369 return ret; 2370 2371 return 0; 2372 } 2373 2374 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2375 { 2376 struct ath6kl_vif *vif; 2377 int ret; 2378 2379 vif = ath6kl_vif_first(ar); 2380 2381 if (!vif) 2382 return -EIO; 2383 2384 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2385 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2386 ar->wmi->saved_pwr_mode); 2387 if (ret) 2388 return ret; 2389 } 2390 2391 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2392 ATH6KL_HOST_MODE_AWAKE); 2393 if (ret) 2394 return ret; 2395 2396 ar->state = ATH6KL_STATE_ON; 2397 2398 /* Reset scan parameter to default values */ 2399 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2400 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2401 if (ret) 2402 return ret; 2403 2404 return 0; 2405 } 2406 2407 int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2408 enum ath6kl_cfg_suspend_mode mode, 2409 struct cfg80211_wowlan *wow) 2410 { 2411 struct ath6kl_vif *vif; 2412 enum ath6kl_state prev_state; 2413 int ret; 2414 2415 switch (mode) { 2416 case ATH6KL_CFG_SUSPEND_WOW: 2417 2418 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2419 2420 /* Flush all non control pkts in TX path */ 2421 ath6kl_tx_data_cleanup(ar); 2422 2423 prev_state = ar->state; 2424 2425 ret = ath6kl_wow_suspend(ar, wow); 2426 if (ret) { 2427 ar->state = prev_state; 2428 return ret; 2429 } 2430 2431 ar->state = ATH6KL_STATE_WOW; 2432 break; 2433 2434 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2435 2436 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2437 2438 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2439 if (ret) { 2440 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2441 return ret; 2442 } 2443 2444 ar->state = ATH6KL_STATE_DEEPSLEEP; 2445 2446 break; 2447 2448 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2449 2450 ath6kl_cfg80211_stop_all(ar); 2451 2452 if (ar->state == ATH6KL_STATE_OFF) { 2453 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2454 "suspend hw off, no action for cutpower\n"); 2455 break; 2456 } 2457 2458 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2459 2460 ret = ath6kl_init_hw_stop(ar); 2461 if (ret) { 2462 ath6kl_warn("failed to stop hw during suspend: %d\n", 2463 ret); 2464 } 2465 2466 ar->state = ATH6KL_STATE_CUTPOWER; 2467 2468 break; 2469 2470 default: 2471 break; 2472 } 2473 2474 list_for_each_entry(vif, &ar->vif_list, list) 2475 ath6kl_cfg80211_scan_complete_event(vif, true); 2476 2477 return 0; 2478 } 2479 EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2480 2481 int ath6kl_cfg80211_resume(struct ath6kl *ar) 2482 { 2483 int ret; 2484 2485 switch (ar->state) { 2486 case ATH6KL_STATE_WOW: 2487 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2488 2489 ret = ath6kl_wow_resume(ar); 2490 if (ret) { 2491 ath6kl_warn("wow mode resume failed: %d\n", ret); 2492 return ret; 2493 } 2494 2495 break; 2496 2497 case ATH6KL_STATE_DEEPSLEEP: 2498 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2499 2500 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2501 if (ret) { 2502 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2503 return ret; 2504 } 2505 break; 2506 2507 case ATH6KL_STATE_CUTPOWER: 2508 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2509 2510 ret = ath6kl_init_hw_start(ar); 2511 if (ret) { 2512 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2513 return ret; 2514 } 2515 break; 2516 2517 default: 2518 break; 2519 } 2520 2521 return 0; 2522 } 2523 EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2524 2525 #ifdef CONFIG_PM 2526 2527 /* hif layer decides what suspend mode to use */ 2528 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2529 struct cfg80211_wowlan *wow) 2530 { 2531 struct ath6kl *ar = wiphy_priv(wiphy); 2532 2533 ath6kl_recovery_suspend(ar); 2534 2535 return ath6kl_hif_suspend(ar, wow); 2536 } 2537 2538 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2539 { 2540 struct ath6kl *ar = wiphy_priv(wiphy); 2541 int err; 2542 2543 err = ath6kl_hif_resume(ar); 2544 if (err) 2545 return err; 2546 2547 ath6kl_recovery_resume(ar); 2548 2549 return 0; 2550 } 2551 2552 /* 2553 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2554 * both sdio irq wake up and keep power. The target pulls sdio data line to 2555 * wake up the host when WOW pattern matches. This causes sdio irq handler 2556 * is being called in the host side which internally hits ath6kl's RX path. 2557 * 2558 * Since sdio interrupt is not disabled, RX path executes even before 2559 * the host executes the actual resume operation from PM module. 2560 * 2561 * In the current scenario, WOW resume should happen before start processing 2562 * any data from the target. So It's required to perform WOW resume in RX path. 2563 * Ideally we should perform WOW resume only in the actual platform 2564 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2565 * 2566 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2567 */ 2568 void ath6kl_check_wow_status(struct ath6kl *ar) 2569 { 2570 if (ar->state == ATH6KL_STATE_SUSPENDING) 2571 return; 2572 2573 if (ar->state == ATH6KL_STATE_WOW) 2574 ath6kl_cfg80211_resume(ar); 2575 } 2576 2577 #else 2578 2579 void ath6kl_check_wow_status(struct ath6kl *ar) 2580 { 2581 } 2582 #endif 2583 2584 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band, 2585 bool ht_enable) 2586 { 2587 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2588 2589 if (htcap->ht_enable == ht_enable) 2590 return 0; 2591 2592 if (ht_enable) { 2593 /* Set default ht capabilities */ 2594 htcap->ht_enable = true; 2595 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ? 2596 ath6kl_g_htcap : ath6kl_a_htcap; 2597 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2598 } else /* Disable ht */ 2599 memset(htcap, 0, sizeof(*htcap)); 2600 2601 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2602 band, htcap); 2603 } 2604 2605 static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2606 { 2607 struct wiphy *wiphy = vif->ar->wiphy; 2608 int band, ret = 0; 2609 2610 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 2611 if (!wiphy->bands[band]) 2612 continue; 2613 2614 ret = ath6kl_set_htcap(vif, band, 2615 wiphy->bands[band]->ht_cap.ht_supported); 2616 if (ret) 2617 return ret; 2618 } 2619 2620 return ret; 2621 } 2622 2623 static bool ath6kl_is_p2p_ie(const u8 *pos) 2624 { 2625 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2626 pos[2] == 0x50 && pos[3] == 0x6f && 2627 pos[4] == 0x9a && pos[5] == 0x09; 2628 } 2629 2630 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2631 const u8 *ies, size_t ies_len) 2632 { 2633 struct ath6kl *ar = vif->ar; 2634 const u8 *pos; 2635 u8 *buf = NULL; 2636 size_t len = 0; 2637 int ret; 2638 2639 /* 2640 * Filter out P2P IE(s) since they will be included depending on 2641 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2642 */ 2643 2644 if (ies && ies_len) { 2645 buf = kmalloc(ies_len, GFP_KERNEL); 2646 if (buf == NULL) 2647 return -ENOMEM; 2648 pos = ies; 2649 while (pos + 1 < ies + ies_len) { 2650 if (pos + 2 + pos[1] > ies + ies_len) 2651 break; 2652 if (!ath6kl_is_p2p_ie(pos)) { 2653 memcpy(buf + len, pos, 2 + pos[1]); 2654 len += 2 + pos[1]; 2655 } 2656 pos += 2 + pos[1]; 2657 } 2658 } 2659 2660 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2661 WMI_FRAME_PROBE_RESP, buf, len); 2662 kfree(buf); 2663 return ret; 2664 } 2665 2666 static int ath6kl_set_ies(struct ath6kl_vif *vif, 2667 struct cfg80211_beacon_data *info) 2668 { 2669 struct ath6kl *ar = vif->ar; 2670 int res; 2671 2672 /* this also clears IE in fw if it's not set */ 2673 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2674 WMI_FRAME_BEACON, 2675 info->beacon_ies, 2676 info->beacon_ies_len); 2677 if (res) 2678 return res; 2679 2680 /* this also clears IE in fw if it's not set */ 2681 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2682 info->proberesp_ies_len); 2683 if (res) 2684 return res; 2685 2686 /* this also clears IE in fw if it's not set */ 2687 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2688 WMI_FRAME_ASSOC_RESP, 2689 info->assocresp_ies, 2690 info->assocresp_ies_len); 2691 if (res) 2692 return res; 2693 2694 return 0; 2695 } 2696 2697 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2698 u8 *rsn_capab) 2699 { 2700 const u8 *rsn_ie; 2701 size_t rsn_ie_len; 2702 u16 cnt; 2703 2704 if (!beacon->tail) 2705 return -EINVAL; 2706 2707 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2708 if (!rsn_ie) 2709 return -EINVAL; 2710 2711 rsn_ie_len = *(rsn_ie + 1); 2712 /* skip element id and length */ 2713 rsn_ie += 2; 2714 2715 /* skip version */ 2716 if (rsn_ie_len < 2) 2717 return -EINVAL; 2718 rsn_ie += 2; 2719 rsn_ie_len -= 2; 2720 2721 /* skip group cipher suite */ 2722 if (rsn_ie_len < 4) 2723 return 0; 2724 rsn_ie += 4; 2725 rsn_ie_len -= 4; 2726 2727 /* skip pairwise cipher suite */ 2728 if (rsn_ie_len < 2) 2729 return 0; 2730 cnt = get_unaligned_le16(rsn_ie); 2731 rsn_ie += (2 + cnt * 4); 2732 rsn_ie_len -= (2 + cnt * 4); 2733 2734 /* skip akm suite */ 2735 if (rsn_ie_len < 2) 2736 return 0; 2737 cnt = get_unaligned_le16(rsn_ie); 2738 rsn_ie += (2 + cnt * 4); 2739 rsn_ie_len -= (2 + cnt * 4); 2740 2741 if (rsn_ie_len < 2) 2742 return 0; 2743 2744 memcpy(rsn_capab, rsn_ie, 2); 2745 2746 return 0; 2747 } 2748 2749 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2750 struct cfg80211_ap_settings *info) 2751 { 2752 struct ath6kl *ar = ath6kl_priv(dev); 2753 struct ath6kl_vif *vif = netdev_priv(dev); 2754 struct ieee80211_mgmt *mgmt; 2755 bool hidden = false; 2756 u8 *ies; 2757 int ies_len; 2758 struct wmi_connect_cmd p; 2759 int res; 2760 int i, ret; 2761 u16 rsn_capab = 0; 2762 int inactivity_timeout = 0; 2763 2764 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2765 2766 if (!ath6kl_cfg80211_ready(vif)) 2767 return -EIO; 2768 2769 if (vif->next_mode != AP_NETWORK) 2770 return -EOPNOTSUPP; 2771 2772 res = ath6kl_set_ies(vif, &info->beacon); 2773 2774 ar->ap_mode_bkey.valid = false; 2775 2776 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, 2777 info->beacon_interval); 2778 2779 if (ret) 2780 ath6kl_warn("Failed to set beacon interval: %d\n", ret); 2781 2782 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2783 info->dtim_period); 2784 2785 /* ignore error, just print a warning and continue normally */ 2786 if (ret) 2787 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2788 2789 if (info->beacon.head == NULL) 2790 return -EINVAL; 2791 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2792 ies = mgmt->u.beacon.variable; 2793 if (ies > info->beacon.head + info->beacon.head_len) 2794 return -EINVAL; 2795 ies_len = info->beacon.head + info->beacon.head_len - ies; 2796 2797 if (info->ssid == NULL) 2798 return -EINVAL; 2799 memcpy(vif->ssid, info->ssid, info->ssid_len); 2800 vif->ssid_len = info->ssid_len; 2801 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2802 hidden = true; 2803 2804 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2805 if (res) 2806 return res; 2807 2808 ret = ath6kl_set_auth_type(vif, info->auth_type); 2809 if (ret) 2810 return ret; 2811 2812 memset(&p, 0, sizeof(p)); 2813 2814 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2815 switch (info->crypto.akm_suites[i]) { 2816 case WLAN_AKM_SUITE_8021X: 2817 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2818 p.auth_mode |= WPA_AUTH; 2819 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2820 p.auth_mode |= WPA2_AUTH; 2821 break; 2822 case WLAN_AKM_SUITE_PSK: 2823 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2824 p.auth_mode |= WPA_PSK_AUTH; 2825 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2826 p.auth_mode |= WPA2_PSK_AUTH; 2827 break; 2828 } 2829 } 2830 if (p.auth_mode == 0) 2831 p.auth_mode = NONE_AUTH; 2832 vif->auth_mode = p.auth_mode; 2833 2834 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2835 switch (info->crypto.ciphers_pairwise[i]) { 2836 case WLAN_CIPHER_SUITE_WEP40: 2837 case WLAN_CIPHER_SUITE_WEP104: 2838 p.prwise_crypto_type |= WEP_CRYPT; 2839 break; 2840 case WLAN_CIPHER_SUITE_TKIP: 2841 p.prwise_crypto_type |= TKIP_CRYPT; 2842 break; 2843 case WLAN_CIPHER_SUITE_CCMP: 2844 p.prwise_crypto_type |= AES_CRYPT; 2845 break; 2846 case WLAN_CIPHER_SUITE_SMS4: 2847 p.prwise_crypto_type |= WAPI_CRYPT; 2848 break; 2849 } 2850 } 2851 if (p.prwise_crypto_type == 0) { 2852 p.prwise_crypto_type = NONE_CRYPT; 2853 ath6kl_set_cipher(vif, 0, true); 2854 } else if (info->crypto.n_ciphers_pairwise == 1) { 2855 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2856 } 2857 2858 switch (info->crypto.cipher_group) { 2859 case WLAN_CIPHER_SUITE_WEP40: 2860 case WLAN_CIPHER_SUITE_WEP104: 2861 p.grp_crypto_type = WEP_CRYPT; 2862 break; 2863 case WLAN_CIPHER_SUITE_TKIP: 2864 p.grp_crypto_type = TKIP_CRYPT; 2865 break; 2866 case WLAN_CIPHER_SUITE_CCMP: 2867 p.grp_crypto_type = AES_CRYPT; 2868 break; 2869 case WLAN_CIPHER_SUITE_SMS4: 2870 p.grp_crypto_type = WAPI_CRYPT; 2871 break; 2872 default: 2873 p.grp_crypto_type = NONE_CRYPT; 2874 break; 2875 } 2876 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2877 2878 p.nw_type = AP_NETWORK; 2879 vif->nw_type = vif->next_mode; 2880 2881 p.ssid_len = vif->ssid_len; 2882 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2883 p.dot11_auth_mode = vif->dot11_auth_mode; 2884 p.ch = cpu_to_le16(info->chandef.chan->center_freq); 2885 2886 /* Enable uAPSD support by default */ 2887 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2888 if (res < 0) 2889 return res; 2890 2891 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2892 p.nw_subtype = SUBTYPE_P2PGO; 2893 } else { 2894 /* 2895 * Due to firmware limitation, it is not possible to 2896 * do P2P mgmt operations in AP mode 2897 */ 2898 p.nw_subtype = SUBTYPE_NONE; 2899 } 2900 2901 if (info->inactivity_timeout) { 2902 inactivity_timeout = info->inactivity_timeout; 2903 2904 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, 2905 ar->fw_capabilities)) 2906 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2907 60); 2908 2909 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2910 inactivity_timeout); 2911 if (res < 0) 2912 return res; 2913 } 2914 2915 if (ath6kl_set_htcap(vif, info->chandef.chan->band, 2916 cfg80211_get_chandef_type(&info->chandef) 2917 != NL80211_CHAN_NO_HT)) 2918 return -EIO; 2919 2920 /* 2921 * Get the PTKSA replay counter in the RSN IE. Supplicant 2922 * will use the RSN IE in M3 message and firmware has to 2923 * advertise the same in beacon/probe response. Send 2924 * the complete RSN IE capability field to firmware 2925 */ 2926 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2927 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2928 ar->fw_capabilities)) { 2929 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2930 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2931 (const u8 *) &rsn_capab, 2932 sizeof(rsn_capab)); 2933 vif->rsn_capab = rsn_capab; 2934 if (res < 0) 2935 return res; 2936 } 2937 2938 memcpy(&vif->profile, &p, sizeof(p)); 2939 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2940 if (res < 0) 2941 return res; 2942 2943 return 0; 2944 } 2945 2946 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2947 struct cfg80211_beacon_data *beacon) 2948 { 2949 struct ath6kl_vif *vif = netdev_priv(dev); 2950 2951 if (!ath6kl_cfg80211_ready(vif)) 2952 return -EIO; 2953 2954 if (vif->next_mode != AP_NETWORK) 2955 return -EOPNOTSUPP; 2956 2957 return ath6kl_set_ies(vif, beacon); 2958 } 2959 2960 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2961 { 2962 struct ath6kl *ar = ath6kl_priv(dev); 2963 struct ath6kl_vif *vif = netdev_priv(dev); 2964 2965 if (vif->nw_type != AP_NETWORK) 2966 return -EOPNOTSUPP; 2967 if (!test_bit(CONNECTED, &vif->flags)) 2968 return -ENOTCONN; 2969 2970 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2971 clear_bit(CONNECTED, &vif->flags); 2972 2973 /* Restore ht setting in firmware */ 2974 return ath6kl_restore_htcap(vif); 2975 } 2976 2977 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2978 2979 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2980 struct station_del_parameters *params) 2981 { 2982 struct ath6kl *ar = ath6kl_priv(dev); 2983 struct ath6kl_vif *vif = netdev_priv(dev); 2984 const u8 *addr = params->mac ? params->mac : bcast_addr; 2985 2986 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2987 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2988 } 2989 2990 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2991 const u8 *mac, 2992 struct station_parameters *params) 2993 { 2994 struct ath6kl *ar = ath6kl_priv(dev); 2995 struct ath6kl_vif *vif = netdev_priv(dev); 2996 int err; 2997 2998 if (vif->nw_type != AP_NETWORK) 2999 return -EOPNOTSUPP; 3000 3001 err = cfg80211_check_station_change(wiphy, params, 3002 CFG80211_STA_AP_MLME_CLIENT); 3003 if (err) 3004 return err; 3005 3006 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3007 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3008 WMI_AP_MLME_AUTHORIZE, mac, 0); 3009 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3010 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3011 } 3012 3013 static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3014 struct wireless_dev *wdev, 3015 struct ieee80211_channel *chan, 3016 unsigned int duration, 3017 u64 *cookie) 3018 { 3019 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3020 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3021 u32 id; 3022 3023 /* TODO: if already pending or ongoing remain-on-channel, 3024 * return -EBUSY */ 3025 id = ++vif->last_roc_id; 3026 if (id == 0) { 3027 /* Do not use 0 as the cookie value */ 3028 id = ++vif->last_roc_id; 3029 } 3030 *cookie = id; 3031 3032 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3033 chan->center_freq, duration); 3034 } 3035 3036 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3037 struct wireless_dev *wdev, 3038 u64 cookie) 3039 { 3040 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3041 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3042 3043 if (cookie != vif->last_roc_id) 3044 return -ENOENT; 3045 vif->last_cancel_roc_id = cookie; 3046 3047 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3048 } 3049 3050 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3051 const u8 *buf, size_t len, 3052 unsigned int freq) 3053 { 3054 struct ath6kl *ar = vif->ar; 3055 const u8 *pos; 3056 u8 *p2p; 3057 int p2p_len; 3058 int ret; 3059 const struct ieee80211_mgmt *mgmt; 3060 3061 mgmt = (const struct ieee80211_mgmt *) buf; 3062 3063 /* Include P2P IE(s) from the frame generated in user space. */ 3064 3065 p2p = kmalloc(len, GFP_KERNEL); 3066 if (p2p == NULL) 3067 return -ENOMEM; 3068 p2p_len = 0; 3069 3070 pos = mgmt->u.probe_resp.variable; 3071 while (pos + 1 < buf + len) { 3072 if (pos + 2 + pos[1] > buf + len) 3073 break; 3074 if (ath6kl_is_p2p_ie(pos)) { 3075 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3076 p2p_len += 2 + pos[1]; 3077 } 3078 pos += 2 + pos[1]; 3079 } 3080 3081 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3082 mgmt->da, p2p, p2p_len); 3083 kfree(p2p); 3084 return ret; 3085 } 3086 3087 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3088 u32 id, 3089 u32 freq, 3090 u32 wait, 3091 const u8 *buf, 3092 size_t len, 3093 bool *more_data, 3094 bool no_cck) 3095 { 3096 struct ieee80211_mgmt *mgmt; 3097 struct ath6kl_sta *conn; 3098 bool is_psq_empty = false; 3099 struct ath6kl_mgmt_buff *mgmt_buf; 3100 size_t mgmt_buf_size; 3101 struct ath6kl *ar = vif->ar; 3102 3103 mgmt = (struct ieee80211_mgmt *) buf; 3104 if (is_multicast_ether_addr(mgmt->da)) 3105 return false; 3106 3107 conn = ath6kl_find_sta(vif, mgmt->da); 3108 if (!conn) 3109 return false; 3110 3111 if (conn->sta_flags & STA_PS_SLEEP) { 3112 if (!(conn->sta_flags & STA_PS_POLLED)) { 3113 /* Queue the frames if the STA is sleeping */ 3114 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3115 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3116 if (!mgmt_buf) 3117 return false; 3118 3119 INIT_LIST_HEAD(&mgmt_buf->list); 3120 mgmt_buf->id = id; 3121 mgmt_buf->freq = freq; 3122 mgmt_buf->wait = wait; 3123 mgmt_buf->len = len; 3124 mgmt_buf->no_cck = no_cck; 3125 memcpy(mgmt_buf->buf, buf, len); 3126 spin_lock_bh(&conn->psq_lock); 3127 is_psq_empty = skb_queue_empty(&conn->psq) && 3128 (conn->mgmt_psq_len == 0); 3129 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3130 conn->mgmt_psq_len++; 3131 spin_unlock_bh(&conn->psq_lock); 3132 3133 /* 3134 * If this is the first pkt getting queued 3135 * for this STA, update the PVB for this 3136 * STA. 3137 */ 3138 if (is_psq_empty) 3139 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3140 conn->aid, 1); 3141 return true; 3142 } 3143 3144 /* 3145 * This tx is because of a PsPoll. 3146 * Determine if MoreData bit has to be set. 3147 */ 3148 spin_lock_bh(&conn->psq_lock); 3149 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3150 *more_data = true; 3151 spin_unlock_bh(&conn->psq_lock); 3152 } 3153 3154 return false; 3155 } 3156 3157 /* Check if SSID length is greater than DIRECT- */ 3158 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3159 { 3160 const struct ieee80211_mgmt *mgmt; 3161 mgmt = (const struct ieee80211_mgmt *) buf; 3162 3163 /* variable[1] contains the SSID tag length */ 3164 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3165 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3166 return true; 3167 } 3168 3169 return false; 3170 } 3171 3172 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3173 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 3174 { 3175 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3176 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3177 struct ieee80211_channel *chan = params->chan; 3178 const u8 *buf = params->buf; 3179 size_t len = params->len; 3180 unsigned int wait = params->wait; 3181 bool no_cck = params->no_cck; 3182 u32 id, freq; 3183 const struct ieee80211_mgmt *mgmt; 3184 bool more_data, queued; 3185 3186 /* default to the current channel, but use the one specified as argument 3187 * if any 3188 */ 3189 freq = vif->ch_hint; 3190 if (chan) 3191 freq = chan->center_freq; 3192 3193 /* never send freq zero to the firmware */ 3194 if (WARN_ON(freq == 0)) 3195 return -EINVAL; 3196 3197 mgmt = (const struct ieee80211_mgmt *) buf; 3198 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3199 ieee80211_is_probe_resp(mgmt->frame_control) && 3200 ath6kl_is_p2p_go_ssid(buf, len)) { 3201 /* 3202 * Send Probe Response frame in GO mode using a separate WMI 3203 * command to allow the target to fill in the generic IEs. 3204 */ 3205 *cookie = 0; /* TX status not supported */ 3206 return ath6kl_send_go_probe_resp(vif, buf, len, freq); 3207 } 3208 3209 id = vif->send_action_id++; 3210 if (id == 0) { 3211 /* 3212 * 0 is a reserved value in the WMI command and shall not be 3213 * used for the command. 3214 */ 3215 id = vif->send_action_id++; 3216 } 3217 3218 *cookie = id; 3219 3220 /* AP mode Power saving processing */ 3221 if (vif->nw_type == AP_NETWORK) { 3222 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len, 3223 &more_data, no_cck); 3224 if (queued) 3225 return 0; 3226 } 3227 3228 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq, 3229 wait, buf, len, no_cck); 3230 } 3231 3232 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3233 struct wireless_dev *wdev, 3234 u16 frame_type, bool reg) 3235 { 3236 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3237 3238 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3239 __func__, frame_type, reg); 3240 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3241 /* 3242 * Note: This notification callback is not allowed to sleep, so 3243 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3244 * hardcode target to report Probe Request frames all the time. 3245 */ 3246 vif->probe_req_report = reg; 3247 } 3248 } 3249 3250 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3251 struct net_device *dev, 3252 struct cfg80211_sched_scan_request *request) 3253 { 3254 struct ath6kl *ar = ath6kl_priv(dev); 3255 struct ath6kl_vif *vif = netdev_priv(dev); 3256 u16 interval; 3257 int ret, rssi_thold; 3258 int n_match_sets = request->n_match_sets; 3259 3260 /* 3261 * If there's a matchset w/o an SSID, then assume it's just for 3262 * the RSSI (nothing else is currently supported) and ignore it. 3263 * The device only supports a global RSSI filter that we set below. 3264 */ 3265 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len) 3266 n_match_sets = 0; 3267 3268 if (ar->state != ATH6KL_STATE_ON) 3269 return -EIO; 3270 3271 if (vif->sme_state != SME_DISCONNECTED) 3272 return -EBUSY; 3273 3274 ath6kl_cfg80211_scan_complete_event(vif, true); 3275 3276 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3277 request->n_ssids, 3278 request->match_sets, 3279 n_match_sets); 3280 if (ret < 0) 3281 return ret; 3282 3283 if (!n_match_sets) { 3284 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3285 ALL_BSS_FILTER, 0); 3286 if (ret < 0) 3287 return ret; 3288 } else { 3289 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3290 MATCHED_SSID_FILTER, 0); 3291 if (ret < 0) 3292 return ret; 3293 } 3294 3295 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3296 ar->fw_capabilities)) { 3297 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3298 rssi_thold = 0; 3299 else if (request->min_rssi_thold < -127) 3300 rssi_thold = -127; 3301 else 3302 rssi_thold = request->min_rssi_thold; 3303 3304 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3305 rssi_thold); 3306 if (ret) { 3307 ath6kl_err("failed to set RSSI threshold for scan\n"); 3308 return ret; 3309 } 3310 } 3311 3312 /* fw uses seconds, also make sure that it's >0 */ 3313 interval = max_t(u16, 1, request->interval / 1000); 3314 3315 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3316 interval, interval, 3317 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3318 3319 /* this also clears IE in fw if it's not set */ 3320 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3321 WMI_FRAME_PROBE_REQ, 3322 request->ie, request->ie_len); 3323 if (ret) { 3324 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3325 ret); 3326 return ret; 3327 } 3328 3329 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3330 if (ret) 3331 return ret; 3332 3333 set_bit(SCHED_SCANNING, &vif->flags); 3334 3335 return 0; 3336 } 3337 3338 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3339 struct net_device *dev) 3340 { 3341 struct ath6kl_vif *vif = netdev_priv(dev); 3342 bool stopped; 3343 3344 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3345 3346 if (!stopped) 3347 return -EIO; 3348 3349 return 0; 3350 } 3351 3352 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3353 struct net_device *dev, 3354 const u8 *addr, 3355 const struct cfg80211_bitrate_mask *mask) 3356 { 3357 struct ath6kl *ar = ath6kl_priv(dev); 3358 struct ath6kl_vif *vif = netdev_priv(dev); 3359 3360 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3361 mask); 3362 } 3363 3364 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3365 struct net_device *dev, 3366 u32 rate, u32 pkts, u32 intvl) 3367 { 3368 struct ath6kl *ar = ath6kl_priv(dev); 3369 struct ath6kl_vif *vif = netdev_priv(dev); 3370 3371 if (vif->nw_type != INFRA_NETWORK || 3372 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3373 return -EOPNOTSUPP; 3374 3375 if (vif->sme_state != SME_CONNECTED) 3376 return -ENOTCONN; 3377 3378 /* save this since the firmware won't report the interval */ 3379 vif->txe_intvl = intvl; 3380 3381 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3382 rate, pkts, intvl); 3383 } 3384 3385 static const struct ieee80211_txrx_stypes 3386 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3387 [NL80211_IFTYPE_STATION] = { 3388 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3389 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3390 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3391 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3392 }, 3393 [NL80211_IFTYPE_AP] = { 3394 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3395 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3396 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3397 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3398 }, 3399 [NL80211_IFTYPE_P2P_CLIENT] = { 3400 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3401 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3402 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3403 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3404 }, 3405 [NL80211_IFTYPE_P2P_GO] = { 3406 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3407 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3408 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3409 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3410 }, 3411 }; 3412 3413 static struct cfg80211_ops ath6kl_cfg80211_ops = { 3414 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3415 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3416 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3417 .scan = ath6kl_cfg80211_scan, 3418 .connect = ath6kl_cfg80211_connect, 3419 .disconnect = ath6kl_cfg80211_disconnect, 3420 .add_key = ath6kl_cfg80211_add_key, 3421 .get_key = ath6kl_cfg80211_get_key, 3422 .del_key = ath6kl_cfg80211_del_key, 3423 .set_default_key = ath6kl_cfg80211_set_default_key, 3424 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3425 .set_tx_power = ath6kl_cfg80211_set_txpower, 3426 .get_tx_power = ath6kl_cfg80211_get_txpower, 3427 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3428 .join_ibss = ath6kl_cfg80211_join_ibss, 3429 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3430 .get_station = ath6kl_get_station, 3431 .set_pmksa = ath6kl_set_pmksa, 3432 .del_pmksa = ath6kl_del_pmksa, 3433 .flush_pmksa = ath6kl_flush_pmksa, 3434 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3435 #ifdef CONFIG_PM 3436 .suspend = __ath6kl_cfg80211_suspend, 3437 .resume = __ath6kl_cfg80211_resume, 3438 #endif 3439 .start_ap = ath6kl_start_ap, 3440 .change_beacon = ath6kl_change_beacon, 3441 .stop_ap = ath6kl_stop_ap, 3442 .del_station = ath6kl_del_station, 3443 .change_station = ath6kl_change_station, 3444 .remain_on_channel = ath6kl_remain_on_channel, 3445 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3446 .mgmt_tx = ath6kl_mgmt_tx, 3447 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3448 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3449 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3450 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3451 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3452 }; 3453 3454 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3455 { 3456 ath6kl_cfg80211_sscan_disable(vif); 3457 3458 switch (vif->sme_state) { 3459 case SME_DISCONNECTED: 3460 break; 3461 case SME_CONNECTING: 3462 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3463 NULL, 0, 3464 WLAN_STATUS_UNSPECIFIED_FAILURE, 3465 GFP_KERNEL); 3466 break; 3467 case SME_CONNECTED: 3468 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3469 break; 3470 } 3471 3472 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3473 (test_bit(CONNECTED, &vif->flags) || 3474 test_bit(CONNECT_PEND, &vif->flags))) 3475 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3476 3477 vif->sme_state = SME_DISCONNECTED; 3478 clear_bit(CONNECTED, &vif->flags); 3479 clear_bit(CONNECT_PEND, &vif->flags); 3480 3481 /* Stop netdev queues, needed during recovery */ 3482 netif_stop_queue(vif->ndev); 3483 netif_carrier_off(vif->ndev); 3484 3485 /* disable scanning */ 3486 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3487 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3488 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3489 ath6kl_warn("failed to disable scan during stop\n"); 3490 3491 ath6kl_cfg80211_scan_complete_event(vif, true); 3492 } 3493 3494 void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3495 { 3496 struct ath6kl_vif *vif; 3497 3498 vif = ath6kl_vif_first(ar); 3499 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3500 /* save the current power mode before enabling power save */ 3501 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3502 3503 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3504 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3505 return; 3506 } 3507 3508 /* 3509 * FIXME: we should take ar->list_lock to protect changes in the 3510 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3511 * sleeps. 3512 */ 3513 list_for_each_entry(vif, &ar->vif_list, list) 3514 ath6kl_cfg80211_stop(vif); 3515 } 3516 3517 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3518 struct regulatory_request *request) 3519 { 3520 struct ath6kl *ar = wiphy_priv(wiphy); 3521 u32 rates[IEEE80211_NUM_BANDS]; 3522 int ret, i; 3523 3524 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3525 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3526 request->alpha2[0], request->alpha2[1], 3527 request->intersect ? " intersect" : "", 3528 request->processed ? " processed" : "", 3529 request->initiator, request->user_reg_hint_type); 3530 3531 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3532 return; 3533 3534 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3535 if (ret) { 3536 ath6kl_err("failed to set regdomain: %d\n", ret); 3537 return; 3538 } 3539 3540 /* 3541 * Firmware will apply the regdomain change only after a scan is 3542 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3543 * changed. 3544 */ 3545 3546 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 3547 if (wiphy->bands[i]) 3548 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3549 3550 3551 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3552 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3553 0, NULL, false, rates); 3554 if (ret) { 3555 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3556 ret); 3557 return; 3558 } 3559 } 3560 3561 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3562 { 3563 vif->aggr_cntxt = aggr_init(vif); 3564 if (!vif->aggr_cntxt) { 3565 ath6kl_err("failed to initialize aggr\n"); 3566 return -ENOMEM; 3567 } 3568 3569 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3570 (unsigned long) vif->ndev); 3571 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3572 (unsigned long) vif); 3573 3574 set_bit(WMM_ENABLED, &vif->flags); 3575 spin_lock_init(&vif->if_lock); 3576 3577 INIT_LIST_HEAD(&vif->mc_filter); 3578 3579 return 0; 3580 } 3581 3582 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready) 3583 { 3584 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3585 bool discon_issued; 3586 3587 netif_stop_queue(vif->ndev); 3588 3589 clear_bit(WLAN_ENABLED, &vif->flags); 3590 3591 if (wmi_ready) { 3592 discon_issued = test_bit(CONNECTED, &vif->flags) || 3593 test_bit(CONNECT_PEND, &vif->flags); 3594 ath6kl_disconnect(vif); 3595 del_timer(&vif->disconnect_timer); 3596 3597 if (discon_issued) 3598 ath6kl_disconnect_event(vif, DISCONNECT_CMD, 3599 (vif->nw_type & AP_NETWORK) ? 3600 bcast_mac : vif->bssid, 3601 0, NULL, 0); 3602 } 3603 3604 if (vif->scan_req) { 3605 cfg80211_scan_done(vif->scan_req, true); 3606 vif->scan_req = NULL; 3607 } 3608 3609 /* need to clean up enhanced bmiss detection fw state */ 3610 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 3611 } 3612 3613 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3614 { 3615 struct ath6kl *ar = vif->ar; 3616 struct ath6kl_mc_filter *mc_filter, *tmp; 3617 3618 aggr_module_destroy(vif->aggr_cntxt); 3619 3620 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3621 3622 if (vif->nw_type == ADHOC_NETWORK) 3623 ar->ibss_if_active = false; 3624 3625 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3626 list_del(&mc_filter->list); 3627 kfree(mc_filter); 3628 } 3629 3630 unregister_netdevice(vif->ndev); 3631 3632 ar->num_vif--; 3633 } 3634 3635 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3636 enum nl80211_iftype type, 3637 u8 fw_vif_idx, u8 nw_type) 3638 { 3639 struct net_device *ndev; 3640 struct ath6kl_vif *vif; 3641 3642 ndev = alloc_netdev(sizeof(*vif), name, NET_NAME_UNKNOWN, ether_setup); 3643 if (!ndev) 3644 return NULL; 3645 3646 vif = netdev_priv(ndev); 3647 ndev->ieee80211_ptr = &vif->wdev; 3648 vif->wdev.wiphy = ar->wiphy; 3649 vif->ar = ar; 3650 vif->ndev = ndev; 3651 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3652 vif->wdev.netdev = ndev; 3653 vif->wdev.iftype = type; 3654 vif->fw_vif_idx = fw_vif_idx; 3655 vif->nw_type = nw_type; 3656 vif->next_mode = nw_type; 3657 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3658 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3659 vif->bg_scan_period = 0; 3660 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3661 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3662 3663 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3664 if (fw_vif_idx != 0) { 3665 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3666 0x2; 3667 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3668 ar->fw_capabilities)) 3669 ndev->dev_addr[4] ^= 0x80; 3670 } 3671 3672 init_netdev(ndev); 3673 3674 ath6kl_init_control_info(vif); 3675 3676 if (ath6kl_cfg80211_vif_init(vif)) 3677 goto err; 3678 3679 if (register_netdevice(ndev)) 3680 goto err; 3681 3682 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3683 vif->sme_state = SME_DISCONNECTED; 3684 set_bit(WLAN_ENABLED, &vif->flags); 3685 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3686 3687 if (type == NL80211_IFTYPE_ADHOC) 3688 ar->ibss_if_active = true; 3689 3690 spin_lock_bh(&ar->list_lock); 3691 list_add_tail(&vif->list, &ar->vif_list); 3692 spin_unlock_bh(&ar->list_lock); 3693 3694 return &vif->wdev; 3695 3696 err: 3697 aggr_module_destroy(vif->aggr_cntxt); 3698 free_netdev(ndev); 3699 return NULL; 3700 } 3701 3702 #ifdef CONFIG_PM 3703 static const struct wiphy_wowlan_support ath6kl_wowlan_support = { 3704 .flags = WIPHY_WOWLAN_MAGIC_PKT | 3705 WIPHY_WOWLAN_DISCONNECT | 3706 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3707 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3708 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3709 WIPHY_WOWLAN_4WAY_HANDSHAKE, 3710 .n_patterns = WOW_MAX_FILTERS_PER_LIST, 3711 .pattern_min_len = 1, 3712 .pattern_max_len = WOW_PATTERN_SIZE, 3713 }; 3714 #endif 3715 3716 int ath6kl_cfg80211_init(struct ath6kl *ar) 3717 { 3718 struct wiphy *wiphy = ar->wiphy; 3719 bool band_2gig = false, band_5gig = false, ht = false; 3720 int ret; 3721 3722 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3723 3724 wiphy->max_remain_on_channel_duration = 5000; 3725 3726 /* set device pointer for wiphy */ 3727 set_wiphy_dev(wiphy, ar->dev); 3728 3729 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3730 BIT(NL80211_IFTYPE_ADHOC) | 3731 BIT(NL80211_IFTYPE_AP); 3732 if (ar->p2p) { 3733 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3734 BIT(NL80211_IFTYPE_P2P_CLIENT); 3735 } 3736 3737 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) && 3738 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3739 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3740 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3741 } 3742 3743 /* max num of ssids that can be probed during scanning */ 3744 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3745 3746 /* max num of ssids that can be matched after scan */ 3747 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3748 ar->fw_capabilities)) 3749 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3750 3751 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3752 switch (ar->hw.cap) { 3753 case WMI_11AN_CAP: 3754 ht = true; 3755 case WMI_11A_CAP: 3756 band_5gig = true; 3757 break; 3758 case WMI_11GN_CAP: 3759 ht = true; 3760 case WMI_11G_CAP: 3761 band_2gig = true; 3762 break; 3763 case WMI_11AGN_CAP: 3764 ht = true; 3765 case WMI_11AG_CAP: 3766 band_2gig = true; 3767 band_5gig = true; 3768 break; 3769 default: 3770 ath6kl_err("invalid phy capability!\n"); 3771 return -EINVAL; 3772 } 3773 3774 /* 3775 * Even if the fw has HT support, advertise HT cap only when 3776 * the firmware has support to override RSN capability, otherwise 3777 * 4-way handshake would fail. 3778 */ 3779 if (!(ht && 3780 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3781 ar->fw_capabilities))) { 3782 ath6kl_band_2ghz.ht_cap.cap = 0; 3783 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3784 ath6kl_band_5ghz.ht_cap.cap = 0; 3785 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3786 } 3787 3788 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, 3789 ar->fw_capabilities)) { 3790 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3791 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3792 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3793 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3794 } else { 3795 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3796 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3797 } 3798 3799 if (band_2gig) 3800 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3801 if (band_5gig) 3802 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3803 3804 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3805 3806 wiphy->cipher_suites = cipher_suites; 3807 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3808 3809 #ifdef CONFIG_PM 3810 wiphy->wowlan = &ath6kl_wowlan_support; 3811 #endif 3812 3813 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3814 3815 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3816 WIPHY_FLAG_HAVE_AP_SME | 3817 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3818 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3819 3820 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3821 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3822 3823 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3824 ar->fw_capabilities)) 3825 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3826 3827 ar->wiphy->probe_resp_offload = 3828 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3829 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3830 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3831 3832 ret = wiphy_register(wiphy); 3833 if (ret < 0) { 3834 ath6kl_err("couldn't register wiphy device\n"); 3835 return ret; 3836 } 3837 3838 ar->wiphy_registered = true; 3839 3840 return 0; 3841 } 3842 3843 void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3844 { 3845 wiphy_unregister(ar->wiphy); 3846 3847 ar->wiphy_registered = false; 3848 } 3849 3850 struct ath6kl *ath6kl_cfg80211_create(void) 3851 { 3852 struct ath6kl *ar; 3853 struct wiphy *wiphy; 3854 3855 /* create a new wiphy for use with cfg80211 */ 3856 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3857 3858 if (!wiphy) { 3859 ath6kl_err("couldn't allocate wiphy device\n"); 3860 return NULL; 3861 } 3862 3863 ar = wiphy_priv(wiphy); 3864 ar->wiphy = wiphy; 3865 3866 return ar; 3867 } 3868 3869 /* Note: ar variable must not be accessed after calling this! */ 3870 void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3871 { 3872 int i; 3873 3874 for (i = 0; i < AP_MAX_NUM_STA; i++) 3875 kfree(ar->sta_list[i].aggr_conn); 3876 3877 wiphy_free(ar->wiphy); 3878 } 3879 3880