1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 19 20 #include <linux/moduleparam.h> 21 #include <linux/inetdevice.h> 22 #include <linux/export.h> 23 24 #include "core.h" 25 #include "cfg80211.h" 26 #include "debug.h" 27 #include "hif-ops.h" 28 #include "testmode.h" 29 30 #define RATETAB_ENT(_rate, _rateid, _flags) { \ 31 .bitrate = (_rate), \ 32 .flags = (_flags), \ 33 .hw_value = (_rateid), \ 34 } 35 36 #define CHAN2G(_channel, _freq, _flags) { \ 37 .band = IEEE80211_BAND_2GHZ, \ 38 .hw_value = (_channel), \ 39 .center_freq = (_freq), \ 40 .flags = (_flags), \ 41 .max_antenna_gain = 0, \ 42 .max_power = 30, \ 43 } 44 45 #define CHAN5G(_channel, _flags) { \ 46 .band = IEEE80211_BAND_5GHZ, \ 47 .hw_value = (_channel), \ 48 .center_freq = 5000 + (5 * (_channel)), \ 49 .flags = (_flags), \ 50 .max_antenna_gain = 0, \ 51 .max_power = 30, \ 52 } 53 54 #define DEFAULT_BG_SCAN_PERIOD 60 55 56 struct ath6kl_cfg80211_match_probe_ssid { 57 struct cfg80211_ssid ssid; 58 u8 flag; 59 }; 60 61 static struct ieee80211_rate ath6kl_rates[] = { 62 RATETAB_ENT(10, 0x1, 0), 63 RATETAB_ENT(20, 0x2, 0), 64 RATETAB_ENT(55, 0x4, 0), 65 RATETAB_ENT(110, 0x8, 0), 66 RATETAB_ENT(60, 0x10, 0), 67 RATETAB_ENT(90, 0x20, 0), 68 RATETAB_ENT(120, 0x40, 0), 69 RATETAB_ENT(180, 0x80, 0), 70 RATETAB_ENT(240, 0x100, 0), 71 RATETAB_ENT(360, 0x200, 0), 72 RATETAB_ENT(480, 0x400, 0), 73 RATETAB_ENT(540, 0x800, 0), 74 }; 75 76 #define ath6kl_a_rates (ath6kl_rates + 4) 77 #define ath6kl_a_rates_size 8 78 #define ath6kl_g_rates (ath6kl_rates + 0) 79 #define ath6kl_g_rates_size 12 80 81 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 82 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 83 IEEE80211_HT_CAP_SGI_20 | \ 84 IEEE80211_HT_CAP_SGI_40) 85 86 static struct ieee80211_channel ath6kl_2ghz_channels[] = { 87 CHAN2G(1, 2412, 0), 88 CHAN2G(2, 2417, 0), 89 CHAN2G(3, 2422, 0), 90 CHAN2G(4, 2427, 0), 91 CHAN2G(5, 2432, 0), 92 CHAN2G(6, 2437, 0), 93 CHAN2G(7, 2442, 0), 94 CHAN2G(8, 2447, 0), 95 CHAN2G(9, 2452, 0), 96 CHAN2G(10, 2457, 0), 97 CHAN2G(11, 2462, 0), 98 CHAN2G(12, 2467, 0), 99 CHAN2G(13, 2472, 0), 100 CHAN2G(14, 2484, 0), 101 }; 102 103 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 104 CHAN5G(34, 0), CHAN5G(36, 0), 105 CHAN5G(38, 0), CHAN5G(40, 0), 106 CHAN5G(42, 0), CHAN5G(44, 0), 107 CHAN5G(46, 0), CHAN5G(48, 0), 108 CHAN5G(52, 0), CHAN5G(56, 0), 109 CHAN5G(60, 0), CHAN5G(64, 0), 110 CHAN5G(100, 0), CHAN5G(104, 0), 111 CHAN5G(108, 0), CHAN5G(112, 0), 112 CHAN5G(116, 0), CHAN5G(120, 0), 113 CHAN5G(124, 0), CHAN5G(128, 0), 114 CHAN5G(132, 0), CHAN5G(136, 0), 115 CHAN5G(140, 0), CHAN5G(149, 0), 116 CHAN5G(153, 0), CHAN5G(157, 0), 117 CHAN5G(161, 0), CHAN5G(165, 0), 118 CHAN5G(184, 0), CHAN5G(188, 0), 119 CHAN5G(192, 0), CHAN5G(196, 0), 120 CHAN5G(200, 0), CHAN5G(204, 0), 121 CHAN5G(208, 0), CHAN5G(212, 0), 122 CHAN5G(216, 0), 123 }; 124 125 static struct ieee80211_supported_band ath6kl_band_2ghz = { 126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 127 .channels = ath6kl_2ghz_channels, 128 .n_bitrates = ath6kl_g_rates_size, 129 .bitrates = ath6kl_g_rates, 130 .ht_cap.cap = ath6kl_g_htcap, 131 .ht_cap.ht_supported = true, 132 }; 133 134 static struct ieee80211_supported_band ath6kl_band_5ghz = { 135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 136 .channels = ath6kl_5ghz_a_channels, 137 .n_bitrates = ath6kl_a_rates_size, 138 .bitrates = ath6kl_a_rates, 139 .ht_cap.cap = ath6kl_a_htcap, 140 .ht_cap.ht_supported = true, 141 }; 142 143 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 144 145 /* returns true if scheduled scan was stopped */ 146 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 147 { 148 struct ath6kl *ar = vif->ar; 149 150 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) 151 return false; 152 153 del_timer_sync(&vif->sched_scan_timer); 154 155 if (ar->state == ATH6KL_STATE_RECOVERY) 156 return true; 157 158 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); 159 160 return true; 161 } 162 163 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 164 { 165 struct ath6kl *ar = vif->ar; 166 bool stopped; 167 168 stopped = __ath6kl_cfg80211_sscan_stop(vif); 169 170 if (!stopped) 171 return; 172 173 cfg80211_sched_scan_stopped(ar->wiphy); 174 } 175 176 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 177 enum nl80211_wpa_versions wpa_version) 178 { 179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 180 181 if (!wpa_version) { 182 vif->auth_mode = NONE_AUTH; 183 } else if (wpa_version & NL80211_WPA_VERSION_2) { 184 vif->auth_mode = WPA2_AUTH; 185 } else if (wpa_version & NL80211_WPA_VERSION_1) { 186 vif->auth_mode = WPA_AUTH; 187 } else { 188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 189 return -ENOTSUPP; 190 } 191 192 return 0; 193 } 194 195 static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 196 enum nl80211_auth_type auth_type) 197 { 198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 199 200 switch (auth_type) { 201 case NL80211_AUTHTYPE_OPEN_SYSTEM: 202 vif->dot11_auth_mode = OPEN_AUTH; 203 break; 204 case NL80211_AUTHTYPE_SHARED_KEY: 205 vif->dot11_auth_mode = SHARED_AUTH; 206 break; 207 case NL80211_AUTHTYPE_NETWORK_EAP: 208 vif->dot11_auth_mode = LEAP_AUTH; 209 break; 210 211 case NL80211_AUTHTYPE_AUTOMATIC: 212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 213 break; 214 215 default: 216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 217 return -ENOTSUPP; 218 } 219 220 return 0; 221 } 222 223 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 224 { 225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 227 &vif->grp_crypto_len; 228 229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 230 __func__, cipher, ucast); 231 232 switch (cipher) { 233 case 0: 234 /* our own hack to use value 0 as no crypto used */ 235 *ar_cipher = NONE_CRYPT; 236 *ar_cipher_len = 0; 237 break; 238 case WLAN_CIPHER_SUITE_WEP40: 239 *ar_cipher = WEP_CRYPT; 240 *ar_cipher_len = 5; 241 break; 242 case WLAN_CIPHER_SUITE_WEP104: 243 *ar_cipher = WEP_CRYPT; 244 *ar_cipher_len = 13; 245 break; 246 case WLAN_CIPHER_SUITE_TKIP: 247 *ar_cipher = TKIP_CRYPT; 248 *ar_cipher_len = 0; 249 break; 250 case WLAN_CIPHER_SUITE_CCMP: 251 *ar_cipher = AES_CRYPT; 252 *ar_cipher_len = 0; 253 break; 254 case WLAN_CIPHER_SUITE_SMS4: 255 *ar_cipher = WAPI_CRYPT; 256 *ar_cipher_len = 0; 257 break; 258 default: 259 ath6kl_err("cipher 0x%x not supported\n", cipher); 260 return -ENOTSUPP; 261 } 262 263 return 0; 264 } 265 266 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 267 { 268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 269 270 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 271 if (vif->auth_mode == WPA_AUTH) 272 vif->auth_mode = WPA_PSK_AUTH; 273 else if (vif->auth_mode == WPA2_AUTH) 274 vif->auth_mode = WPA2_PSK_AUTH; 275 } else if (key_mgmt == 0x00409600) { 276 if (vif->auth_mode == WPA_AUTH) 277 vif->auth_mode = WPA_AUTH_CCKM; 278 else if (vif->auth_mode == WPA2_AUTH) 279 vif->auth_mode = WPA2_AUTH_CCKM; 280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 281 vif->auth_mode = NONE_AUTH; 282 } 283 } 284 285 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 286 { 287 struct ath6kl *ar = vif->ar; 288 289 if (!test_bit(WMI_READY, &ar->flag)) { 290 ath6kl_err("wmi is not ready\n"); 291 return false; 292 } 293 294 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 295 ath6kl_err("wlan disabled\n"); 296 return false; 297 } 298 299 return true; 300 } 301 302 static bool ath6kl_is_wpa_ie(const u8 *pos) 303 { 304 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 305 pos[2] == 0x00 && pos[3] == 0x50 && 306 pos[4] == 0xf2 && pos[5] == 0x01; 307 } 308 309 static bool ath6kl_is_rsn_ie(const u8 *pos) 310 { 311 return pos[0] == WLAN_EID_RSN; 312 } 313 314 static bool ath6kl_is_wps_ie(const u8 *pos) 315 { 316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 317 pos[1] >= 4 && 318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 319 pos[5] == 0x04); 320 } 321 322 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 323 size_t ies_len) 324 { 325 struct ath6kl *ar = vif->ar; 326 const u8 *pos; 327 u8 *buf = NULL; 328 size_t len = 0; 329 int ret; 330 331 /* 332 * Clear previously set flag 333 */ 334 335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 336 337 /* 338 * Filter out RSN/WPA IE(s) 339 */ 340 341 if (ies && ies_len) { 342 buf = kmalloc(ies_len, GFP_KERNEL); 343 if (buf == NULL) 344 return -ENOMEM; 345 pos = ies; 346 347 while (pos + 1 < ies + ies_len) { 348 if (pos + 2 + pos[1] > ies + ies_len) 349 break; 350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 351 memcpy(buf + len, pos, 2 + pos[1]); 352 len += 2 + pos[1]; 353 } 354 355 if (ath6kl_is_wps_ie(pos)) 356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 357 358 pos += 2 + pos[1]; 359 } 360 } 361 362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 363 WMI_FRAME_ASSOC_REQ, buf, len); 364 kfree(buf); 365 return ret; 366 } 367 368 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 369 { 370 switch (type) { 371 case NL80211_IFTYPE_STATION: 372 case NL80211_IFTYPE_P2P_CLIENT: 373 *nw_type = INFRA_NETWORK; 374 break; 375 case NL80211_IFTYPE_ADHOC: 376 *nw_type = ADHOC_NETWORK; 377 break; 378 case NL80211_IFTYPE_AP: 379 case NL80211_IFTYPE_P2P_GO: 380 *nw_type = AP_NETWORK; 381 break; 382 default: 383 ath6kl_err("invalid interface type %u\n", type); 384 return -ENOTSUPP; 385 } 386 387 return 0; 388 } 389 390 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 391 u8 *if_idx, u8 *nw_type) 392 { 393 int i; 394 395 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 396 return false; 397 398 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 399 ar->num_vif)) 400 return false; 401 402 if (type == NL80211_IFTYPE_STATION || 403 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 404 for (i = 0; i < ar->vif_max; i++) { 405 if ((ar->avail_idx_map >> i) & BIT(0)) { 406 *if_idx = i; 407 return true; 408 } 409 } 410 } 411 412 if (type == NL80211_IFTYPE_P2P_CLIENT || 413 type == NL80211_IFTYPE_P2P_GO) { 414 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 415 if ((ar->avail_idx_map >> i) & BIT(0)) { 416 *if_idx = i; 417 return true; 418 } 419 } 420 } 421 422 return false; 423 } 424 425 static bool ath6kl_is_tx_pending(struct ath6kl *ar) 426 { 427 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 428 } 429 430 431 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 432 struct cfg80211_connect_params *sme) 433 { 434 struct ath6kl *ar = ath6kl_priv(dev); 435 struct ath6kl_vif *vif = netdev_priv(dev); 436 int status; 437 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 438 u16 interval; 439 440 ath6kl_cfg80211_sscan_disable(vif); 441 442 vif->sme_state = SME_CONNECTING; 443 444 if (!ath6kl_cfg80211_ready(vif)) 445 return -EIO; 446 447 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 448 ath6kl_err("destroy in progress\n"); 449 return -EBUSY; 450 } 451 452 if (test_bit(SKIP_SCAN, &ar->flag) && 453 ((sme->channel && sme->channel->center_freq == 0) || 454 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 455 ath6kl_err("SkipScan: channel or bssid invalid\n"); 456 return -EINVAL; 457 } 458 459 if (down_interruptible(&ar->sem)) { 460 ath6kl_err("busy, couldn't get access\n"); 461 return -ERESTARTSYS; 462 } 463 464 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 465 ath6kl_err("busy, destroy in progress\n"); 466 up(&ar->sem); 467 return -EBUSY; 468 } 469 470 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 471 /* 472 * sleep until the command queue drains 473 */ 474 wait_event_interruptible_timeout(ar->event_wq, 475 ath6kl_is_tx_pending(ar), 476 WMI_TIMEOUT); 477 if (signal_pending(current)) { 478 ath6kl_err("cmd queue drain timeout\n"); 479 up(&ar->sem); 480 return -EINTR; 481 } 482 } 483 484 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 485 if (status) { 486 up(&ar->sem); 487 return status; 488 } 489 490 if (sme->ie == NULL || sme->ie_len == 0) 491 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 492 493 if (test_bit(CONNECTED, &vif->flags) && 494 vif->ssid_len == sme->ssid_len && 495 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 496 vif->reconnect_flag = true; 497 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 498 vif->req_bssid, 499 vif->ch_hint); 500 501 up(&ar->sem); 502 if (status) { 503 ath6kl_err("wmi_reconnect_cmd failed\n"); 504 return -EIO; 505 } 506 return 0; 507 } else if (vif->ssid_len == sme->ssid_len && 508 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 509 ath6kl_disconnect(vif); 510 } 511 512 memset(vif->ssid, 0, sizeof(vif->ssid)); 513 vif->ssid_len = sme->ssid_len; 514 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 515 516 if (sme->channel) 517 vif->ch_hint = sme->channel->center_freq; 518 519 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 520 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 521 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 522 523 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 524 525 status = ath6kl_set_auth_type(vif, sme->auth_type); 526 if (status) { 527 up(&ar->sem); 528 return status; 529 } 530 531 if (sme->crypto.n_ciphers_pairwise) 532 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 533 else 534 ath6kl_set_cipher(vif, 0, true); 535 536 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 537 538 if (sme->crypto.n_akm_suites) 539 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 540 541 if ((sme->key_len) && 542 (vif->auth_mode == NONE_AUTH) && 543 (vif->prwise_crypto == WEP_CRYPT)) { 544 struct ath6kl_key *key = NULL; 545 546 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 547 ath6kl_err("key index %d out of bounds\n", 548 sme->key_idx); 549 up(&ar->sem); 550 return -ENOENT; 551 } 552 553 key = &vif->keys[sme->key_idx]; 554 key->key_len = sme->key_len; 555 memcpy(key->key, sme->key, key->key_len); 556 key->cipher = vif->prwise_crypto; 557 vif->def_txkey_index = sme->key_idx; 558 559 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 560 vif->prwise_crypto, 561 GROUP_USAGE | TX_USAGE, 562 key->key_len, 563 NULL, 0, 564 key->key, KEY_OP_INIT_VAL, NULL, 565 NO_SYNC_WMIFLAG); 566 } 567 568 if (!ar->usr_bss_filter) { 569 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 570 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 571 ALL_BSS_FILTER, 0) != 0) { 572 ath6kl_err("couldn't set bss filtering\n"); 573 up(&ar->sem); 574 return -EIO; 575 } 576 } 577 578 vif->nw_type = vif->next_mode; 579 580 /* enable enhanced bmiss detection if applicable */ 581 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 582 583 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 584 nw_subtype = SUBTYPE_P2PCLIENT; 585 586 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 587 "%s: connect called with authmode %d dot11 auth %d" 588 " PW crypto %d PW crypto len %d GRP crypto %d" 589 " GRP crypto len %d channel hint %u\n", 590 __func__, 591 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 592 vif->prwise_crypto_len, vif->grp_crypto, 593 vif->grp_crypto_len, vif->ch_hint); 594 595 vif->reconnect_flag = 0; 596 597 if (vif->nw_type == INFRA_NETWORK) { 598 interval = max_t(u16, vif->listen_intvl_t, 599 ATH6KL_MAX_WOW_LISTEN_INTL); 600 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 601 interval, 602 0); 603 if (status) { 604 ath6kl_err("couldn't set listen intervel\n"); 605 up(&ar->sem); 606 return status; 607 } 608 } 609 610 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 611 vif->dot11_auth_mode, vif->auth_mode, 612 vif->prwise_crypto, 613 vif->prwise_crypto_len, 614 vif->grp_crypto, vif->grp_crypto_len, 615 vif->ssid_len, vif->ssid, 616 vif->req_bssid, vif->ch_hint, 617 ar->connect_ctrl_flags, nw_subtype); 618 619 /* disable background scan if period is 0 */ 620 if (sme->bg_scan_period == 0) 621 sme->bg_scan_period = 0xffff; 622 623 /* configure default value if not specified */ 624 if (sme->bg_scan_period == -1) 625 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 626 627 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 628 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 629 630 up(&ar->sem); 631 632 if (status == -EINVAL) { 633 memset(vif->ssid, 0, sizeof(vif->ssid)); 634 vif->ssid_len = 0; 635 ath6kl_err("invalid request\n"); 636 return -ENOENT; 637 } else if (status) { 638 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 639 return -EIO; 640 } 641 642 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 643 ((vif->auth_mode == WPA_PSK_AUTH) || 644 (vif->auth_mode == WPA2_PSK_AUTH))) { 645 mod_timer(&vif->disconnect_timer, 646 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 647 } 648 649 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 650 set_bit(CONNECT_PEND, &vif->flags); 651 652 return 0; 653 } 654 655 static struct cfg80211_bss * 656 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 657 enum network_type nw_type, 658 const u8 *bssid, 659 struct ieee80211_channel *chan, 660 const u8 *beacon_ie, 661 size_t beacon_ie_len) 662 { 663 struct ath6kl *ar = vif->ar; 664 struct cfg80211_bss *bss; 665 u16 cap_mask, cap_val; 666 u8 *ie; 667 668 if (nw_type & ADHOC_NETWORK) { 669 cap_mask = WLAN_CAPABILITY_IBSS; 670 cap_val = WLAN_CAPABILITY_IBSS; 671 } else { 672 cap_mask = WLAN_CAPABILITY_ESS; 673 cap_val = WLAN_CAPABILITY_ESS; 674 } 675 676 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 677 vif->ssid, vif->ssid_len, 678 cap_mask, cap_val); 679 if (bss == NULL) { 680 /* 681 * Since cfg80211 may not yet know about the BSS, 682 * generate a partial entry until the first BSS info 683 * event becomes available. 684 * 685 * Prepend SSID element since it is not included in the Beacon 686 * IEs from the target. 687 */ 688 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 689 if (ie == NULL) 690 return NULL; 691 ie[0] = WLAN_EID_SSID; 692 ie[1] = vif->ssid_len; 693 memcpy(ie + 2, vif->ssid, vif->ssid_len); 694 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 695 bss = cfg80211_inform_bss(ar->wiphy, chan, 696 bssid, 0, cap_val, 100, 697 ie, 2 + vif->ssid_len + beacon_ie_len, 698 0, GFP_KERNEL); 699 if (bss) 700 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 701 "added bss %pM to cfg80211\n", bssid); 702 kfree(ie); 703 } else 704 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 705 706 return bss; 707 } 708 709 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 710 u8 *bssid, u16 listen_intvl, 711 u16 beacon_intvl, 712 enum network_type nw_type, 713 u8 beacon_ie_len, u8 assoc_req_len, 714 u8 assoc_resp_len, u8 *assoc_info) 715 { 716 struct ieee80211_channel *chan; 717 struct ath6kl *ar = vif->ar; 718 struct cfg80211_bss *bss; 719 720 /* capinfo + listen interval */ 721 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 722 723 /* capinfo + status code + associd */ 724 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 725 726 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 727 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 728 assoc_resp_ie_offset; 729 730 assoc_req_len -= assoc_req_ie_offset; 731 assoc_resp_len -= assoc_resp_ie_offset; 732 733 /* 734 * Store Beacon interval here; DTIM period will be available only once 735 * a Beacon frame from the AP is seen. 736 */ 737 vif->assoc_bss_beacon_int = beacon_intvl; 738 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 739 740 if (nw_type & ADHOC_NETWORK) { 741 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 742 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 743 "%s: ath6k not in ibss mode\n", __func__); 744 return; 745 } 746 } 747 748 if (nw_type & INFRA_NETWORK) { 749 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 750 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 751 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 752 "%s: ath6k not in station mode\n", __func__); 753 return; 754 } 755 } 756 757 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 758 759 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 760 assoc_info, beacon_ie_len); 761 if (!bss) { 762 ath6kl_err("could not add cfg80211 bss entry\n"); 763 return; 764 } 765 766 if (nw_type & ADHOC_NETWORK) { 767 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 768 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 769 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 770 cfg80211_put_bss(bss); 771 return; 772 } 773 774 if (vif->sme_state == SME_CONNECTING) { 775 /* inform connect result to cfg80211 */ 776 vif->sme_state = SME_CONNECTED; 777 cfg80211_connect_result(vif->ndev, bssid, 778 assoc_req_ie, assoc_req_len, 779 assoc_resp_ie, assoc_resp_len, 780 WLAN_STATUS_SUCCESS, GFP_KERNEL); 781 cfg80211_put_bss(bss); 782 } else if (vif->sme_state == SME_CONNECTED) { 783 /* inform roam event to cfg80211 */ 784 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 785 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 786 } 787 } 788 789 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 790 struct net_device *dev, u16 reason_code) 791 { 792 struct ath6kl *ar = ath6kl_priv(dev); 793 struct ath6kl_vif *vif = netdev_priv(dev); 794 795 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 796 reason_code); 797 798 ath6kl_cfg80211_sscan_disable(vif); 799 800 if (!ath6kl_cfg80211_ready(vif)) 801 return -EIO; 802 803 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 804 ath6kl_err("busy, destroy in progress\n"); 805 return -EBUSY; 806 } 807 808 if (down_interruptible(&ar->sem)) { 809 ath6kl_err("busy, couldn't get access\n"); 810 return -ERESTARTSYS; 811 } 812 813 vif->reconnect_flag = 0; 814 ath6kl_disconnect(vif); 815 memset(vif->ssid, 0, sizeof(vif->ssid)); 816 vif->ssid_len = 0; 817 818 if (!test_bit(SKIP_SCAN, &ar->flag)) 819 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 820 821 up(&ar->sem); 822 823 vif->sme_state = SME_DISCONNECTED; 824 825 return 0; 826 } 827 828 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 829 u8 *bssid, u8 assoc_resp_len, 830 u8 *assoc_info, u16 proto_reason) 831 { 832 struct ath6kl *ar = vif->ar; 833 834 if (vif->scan_req) { 835 cfg80211_scan_done(vif->scan_req, true); 836 vif->scan_req = NULL; 837 } 838 839 if (vif->nw_type & ADHOC_NETWORK) { 840 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 841 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 842 "%s: ath6k not in ibss mode\n", __func__); 843 return; 844 } 845 memset(bssid, 0, ETH_ALEN); 846 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 847 return; 848 } 849 850 if (vif->nw_type & INFRA_NETWORK) { 851 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 852 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 853 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 854 "%s: ath6k not in station mode\n", __func__); 855 return; 856 } 857 } 858 859 clear_bit(CONNECT_PEND, &vif->flags); 860 861 if (vif->sme_state == SME_CONNECTING) { 862 cfg80211_connect_result(vif->ndev, 863 bssid, NULL, 0, 864 NULL, 0, 865 WLAN_STATUS_UNSPECIFIED_FAILURE, 866 GFP_KERNEL); 867 } else if (vif->sme_state == SME_CONNECTED) { 868 cfg80211_disconnected(vif->ndev, proto_reason, 869 NULL, 0, GFP_KERNEL); 870 } 871 872 vif->sme_state = SME_DISCONNECTED; 873 874 /* 875 * Send a disconnect command to target when a disconnect event is 876 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 877 * request from host) to make the firmware stop trying to connect even 878 * after giving disconnect event. There will be one more disconnect 879 * event for this disconnect command with reason code DISCONNECT_CMD 880 * which won't be notified to cfg80211. 881 */ 882 if (reason != DISCONNECT_CMD) 883 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 884 } 885 886 static int ath6kl_set_probed_ssids(struct ath6kl *ar, 887 struct ath6kl_vif *vif, 888 struct cfg80211_ssid *ssids, int n_ssids, 889 struct cfg80211_match_set *match_set, 890 int n_match_ssid) 891 { 892 u8 i, j, index_to_add, ssid_found = false; 893 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 894 895 memset(ssid_list, 0, sizeof(ssid_list)); 896 897 if (n_ssids > MAX_PROBED_SSIDS || 898 n_match_ssid > MAX_PROBED_SSIDS) 899 return -EINVAL; 900 901 for (i = 0; i < n_ssids; i++) { 902 memcpy(ssid_list[i].ssid.ssid, 903 ssids[i].ssid, 904 ssids[i].ssid_len); 905 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 906 907 if (ssids[i].ssid_len) 908 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 909 else 910 ssid_list[i].flag = ANY_SSID_FLAG; 911 912 if (n_match_ssid == 0) 913 ssid_list[i].flag |= MATCH_SSID_FLAG; 914 } 915 916 index_to_add = i; 917 918 for (i = 0; i < n_match_ssid; i++) { 919 ssid_found = false; 920 921 for (j = 0; j < n_ssids; j++) { 922 if ((match_set[i].ssid.ssid_len == 923 ssid_list[j].ssid.ssid_len) && 924 (!memcmp(ssid_list[j].ssid.ssid, 925 match_set[i].ssid.ssid, 926 match_set[i].ssid.ssid_len))) { 927 ssid_list[j].flag |= MATCH_SSID_FLAG; 928 ssid_found = true; 929 break; 930 } 931 } 932 933 if (ssid_found) 934 continue; 935 936 if (index_to_add >= MAX_PROBED_SSIDS) 937 continue; 938 939 ssid_list[index_to_add].ssid.ssid_len = 940 match_set[i].ssid.ssid_len; 941 memcpy(ssid_list[index_to_add].ssid.ssid, 942 match_set[i].ssid.ssid, 943 match_set[i].ssid.ssid_len); 944 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 945 index_to_add++; 946 } 947 948 for (i = 0; i < index_to_add; i++) { 949 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 950 ssid_list[i].flag, 951 ssid_list[i].ssid.ssid_len, 952 ssid_list[i].ssid.ssid); 953 954 } 955 956 /* Make sure no old entries are left behind */ 957 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 958 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 959 DISABLE_SSID_FLAG, 0, NULL); 960 } 961 962 return 0; 963 } 964 965 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 966 struct cfg80211_scan_request *request) 967 { 968 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 969 struct ath6kl *ar = ath6kl_priv(vif->ndev); 970 s8 n_channels = 0; 971 u16 *channels = NULL; 972 int ret = 0; 973 u32 force_fg_scan = 0; 974 975 if (!ath6kl_cfg80211_ready(vif)) 976 return -EIO; 977 978 ath6kl_cfg80211_sscan_disable(vif); 979 980 if (!ar->usr_bss_filter) { 981 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 982 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 983 ALL_BSS_FILTER, 0); 984 if (ret) { 985 ath6kl_err("couldn't set bss filtering\n"); 986 return ret; 987 } 988 } 989 990 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 991 request->n_ssids, NULL, 0); 992 if (ret < 0) 993 return ret; 994 995 /* this also clears IE in fw if it's not set */ 996 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 997 WMI_FRAME_PROBE_REQ, 998 request->ie, request->ie_len); 999 if (ret) { 1000 ath6kl_err("failed to set Probe Request appie for scan\n"); 1001 return ret; 1002 } 1003 1004 /* 1005 * Scan only the requested channels if the request specifies a set of 1006 * channels. If the list is longer than the target supports, do not 1007 * configure the list and instead, scan all available channels. 1008 */ 1009 if (request->n_channels > 0 && 1010 request->n_channels <= WMI_MAX_CHANNELS) { 1011 u8 i; 1012 1013 n_channels = request->n_channels; 1014 1015 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1016 if (channels == NULL) { 1017 ath6kl_warn("failed to set scan channels, scan all channels"); 1018 n_channels = 0; 1019 } 1020 1021 for (i = 0; i < n_channels; i++) 1022 channels[i] = request->channels[i]->center_freq; 1023 } 1024 1025 if (test_bit(CONNECTED, &vif->flags)) 1026 force_fg_scan = 1; 1027 1028 vif->scan_req = request; 1029 1030 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1031 WMI_LONG_SCAN, force_fg_scan, 1032 false, 0, 1033 ATH6KL_FG_SCAN_INTERVAL, 1034 n_channels, channels, 1035 request->no_cck, 1036 request->rates); 1037 if (ret) { 1038 ath6kl_err("failed to start scan: %d\n", ret); 1039 vif->scan_req = NULL; 1040 } 1041 1042 kfree(channels); 1043 1044 return ret; 1045 } 1046 1047 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1048 { 1049 struct ath6kl *ar = vif->ar; 1050 int i; 1051 1052 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1053 aborted ? " aborted" : ""); 1054 1055 if (!vif->scan_req) 1056 return; 1057 1058 if (aborted) 1059 goto out; 1060 1061 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1062 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1063 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1064 i + 1, DISABLE_SSID_FLAG, 1065 0, NULL); 1066 } 1067 } 1068 1069 out: 1070 cfg80211_scan_done(vif->scan_req, aborted); 1071 vif->scan_req = NULL; 1072 } 1073 1074 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1075 enum wmi_phy_mode mode) 1076 { 1077 struct cfg80211_chan_def chandef; 1078 1079 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1080 "channel switch notify nw_type %d freq %d mode %d\n", 1081 vif->nw_type, freq, mode); 1082 1083 cfg80211_chandef_create(&chandef, 1084 ieee80211_get_channel(vif->ar->wiphy, freq), 1085 (mode == WMI_11G_HT20) ? 1086 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1087 1088 cfg80211_ch_switch_notify(vif->ndev, &chandef); 1089 } 1090 1091 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1092 u8 key_index, bool pairwise, 1093 const u8 *mac_addr, 1094 struct key_params *params) 1095 { 1096 struct ath6kl *ar = ath6kl_priv(ndev); 1097 struct ath6kl_vif *vif = netdev_priv(ndev); 1098 struct ath6kl_key *key = NULL; 1099 int seq_len; 1100 u8 key_usage; 1101 u8 key_type; 1102 1103 if (!ath6kl_cfg80211_ready(vif)) 1104 return -EIO; 1105 1106 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1107 if (params->key_len != WMI_KRK_LEN) 1108 return -EINVAL; 1109 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1110 params->key); 1111 } 1112 1113 if (key_index > WMI_MAX_KEY_INDEX) { 1114 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1115 "%s: key index %d out of bounds\n", __func__, 1116 key_index); 1117 return -ENOENT; 1118 } 1119 1120 key = &vif->keys[key_index]; 1121 memset(key, 0, sizeof(struct ath6kl_key)); 1122 1123 if (pairwise) 1124 key_usage = PAIRWISE_USAGE; 1125 else 1126 key_usage = GROUP_USAGE; 1127 1128 seq_len = params->seq_len; 1129 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1130 seq_len > ATH6KL_KEY_SEQ_LEN) { 1131 /* Only first half of the WPI PN is configured */ 1132 seq_len = ATH6KL_KEY_SEQ_LEN; 1133 } 1134 if (params->key_len > WLAN_MAX_KEY_LEN || 1135 seq_len > sizeof(key->seq)) 1136 return -EINVAL; 1137 1138 key->key_len = params->key_len; 1139 memcpy(key->key, params->key, key->key_len); 1140 key->seq_len = seq_len; 1141 memcpy(key->seq, params->seq, key->seq_len); 1142 key->cipher = params->cipher; 1143 1144 switch (key->cipher) { 1145 case WLAN_CIPHER_SUITE_WEP40: 1146 case WLAN_CIPHER_SUITE_WEP104: 1147 key_type = WEP_CRYPT; 1148 break; 1149 1150 case WLAN_CIPHER_SUITE_TKIP: 1151 key_type = TKIP_CRYPT; 1152 break; 1153 1154 case WLAN_CIPHER_SUITE_CCMP: 1155 key_type = AES_CRYPT; 1156 break; 1157 case WLAN_CIPHER_SUITE_SMS4: 1158 key_type = WAPI_CRYPT; 1159 break; 1160 1161 default: 1162 return -ENOTSUPP; 1163 } 1164 1165 if (((vif->auth_mode == WPA_PSK_AUTH) || 1166 (vif->auth_mode == WPA2_PSK_AUTH)) && 1167 (key_usage & GROUP_USAGE)) 1168 del_timer(&vif->disconnect_timer); 1169 1170 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1171 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1172 __func__, key_index, key->key_len, key_type, 1173 key_usage, key->seq_len); 1174 1175 if (vif->nw_type == AP_NETWORK && !pairwise && 1176 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1177 key_type == WAPI_CRYPT)) { 1178 ar->ap_mode_bkey.valid = true; 1179 ar->ap_mode_bkey.key_index = key_index; 1180 ar->ap_mode_bkey.key_type = key_type; 1181 ar->ap_mode_bkey.key_len = key->key_len; 1182 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1183 if (!test_bit(CONNECTED, &vif->flags)) { 1184 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1185 "Delay initial group key configuration until AP mode has been started\n"); 1186 /* 1187 * The key will be set in ath6kl_connect_ap_mode() once 1188 * the connected event is received from the target. 1189 */ 1190 return 0; 1191 } 1192 } 1193 1194 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1195 !test_bit(CONNECTED, &vif->flags)) { 1196 /* 1197 * Store the key locally so that it can be re-configured after 1198 * the AP mode has properly started 1199 * (ath6kl_install_statioc_wep_keys). 1200 */ 1201 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1202 "Delay WEP key configuration until AP mode has been started\n"); 1203 vif->wep_key_list[key_index].key_len = key->key_len; 1204 memcpy(vif->wep_key_list[key_index].key, key->key, 1205 key->key_len); 1206 return 0; 1207 } 1208 1209 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1210 key_type, key_usage, key->key_len, 1211 key->seq, key->seq_len, key->key, 1212 KEY_OP_INIT_VAL, 1213 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1214 } 1215 1216 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1217 u8 key_index, bool pairwise, 1218 const u8 *mac_addr) 1219 { 1220 struct ath6kl *ar = ath6kl_priv(ndev); 1221 struct ath6kl_vif *vif = netdev_priv(ndev); 1222 1223 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1224 1225 if (!ath6kl_cfg80211_ready(vif)) 1226 return -EIO; 1227 1228 if (key_index > WMI_MAX_KEY_INDEX) { 1229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1230 "%s: key index %d out of bounds\n", __func__, 1231 key_index); 1232 return -ENOENT; 1233 } 1234 1235 if (!vif->keys[key_index].key_len) { 1236 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1237 "%s: index %d is empty\n", __func__, key_index); 1238 return 0; 1239 } 1240 1241 vif->keys[key_index].key_len = 0; 1242 1243 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1244 } 1245 1246 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1247 u8 key_index, bool pairwise, 1248 const u8 *mac_addr, void *cookie, 1249 void (*callback) (void *cookie, 1250 struct key_params *)) 1251 { 1252 struct ath6kl_vif *vif = netdev_priv(ndev); 1253 struct ath6kl_key *key = NULL; 1254 struct key_params params; 1255 1256 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1257 1258 if (!ath6kl_cfg80211_ready(vif)) 1259 return -EIO; 1260 1261 if (key_index > WMI_MAX_KEY_INDEX) { 1262 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1263 "%s: key index %d out of bounds\n", __func__, 1264 key_index); 1265 return -ENOENT; 1266 } 1267 1268 key = &vif->keys[key_index]; 1269 memset(¶ms, 0, sizeof(params)); 1270 params.cipher = key->cipher; 1271 params.key_len = key->key_len; 1272 params.seq_len = key->seq_len; 1273 params.seq = key->seq; 1274 params.key = key->key; 1275 1276 callback(cookie, ¶ms); 1277 1278 return key->key_len ? 0 : -ENOENT; 1279 } 1280 1281 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1282 struct net_device *ndev, 1283 u8 key_index, bool unicast, 1284 bool multicast) 1285 { 1286 struct ath6kl *ar = ath6kl_priv(ndev); 1287 struct ath6kl_vif *vif = netdev_priv(ndev); 1288 struct ath6kl_key *key = NULL; 1289 u8 key_usage; 1290 enum crypto_type key_type = NONE_CRYPT; 1291 1292 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1293 1294 if (!ath6kl_cfg80211_ready(vif)) 1295 return -EIO; 1296 1297 if (key_index > WMI_MAX_KEY_INDEX) { 1298 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1299 "%s: key index %d out of bounds\n", 1300 __func__, key_index); 1301 return -ENOENT; 1302 } 1303 1304 if (!vif->keys[key_index].key_len) { 1305 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1306 __func__, key_index); 1307 return -EINVAL; 1308 } 1309 1310 vif->def_txkey_index = key_index; 1311 key = &vif->keys[vif->def_txkey_index]; 1312 key_usage = GROUP_USAGE; 1313 if (vif->prwise_crypto == WEP_CRYPT) 1314 key_usage |= TX_USAGE; 1315 if (unicast) 1316 key_type = vif->prwise_crypto; 1317 if (multicast) 1318 key_type = vif->grp_crypto; 1319 1320 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1321 return 0; /* Delay until AP mode has been started */ 1322 1323 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1324 vif->def_txkey_index, 1325 key_type, key_usage, 1326 key->key_len, key->seq, key->seq_len, 1327 key->key, 1328 KEY_OP_INIT_VAL, NULL, 1329 SYNC_BOTH_WMIFLAG); 1330 } 1331 1332 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1333 bool ismcast) 1334 { 1335 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1336 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1337 1338 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1339 (ismcast ? NL80211_KEYTYPE_GROUP : 1340 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1341 GFP_KERNEL); 1342 } 1343 1344 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1345 { 1346 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1347 struct ath6kl_vif *vif; 1348 int ret; 1349 1350 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1351 changed); 1352 1353 vif = ath6kl_vif_first(ar); 1354 if (!vif) 1355 return -EIO; 1356 1357 if (!ath6kl_cfg80211_ready(vif)) 1358 return -EIO; 1359 1360 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1361 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1362 if (ret != 0) { 1363 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1364 return -EIO; 1365 } 1366 } 1367 1368 return 0; 1369 } 1370 1371 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1372 struct wireless_dev *wdev, 1373 enum nl80211_tx_power_setting type, 1374 int mbm) 1375 { 1376 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1377 struct ath6kl_vif *vif; 1378 int dbm = MBM_TO_DBM(mbm); 1379 1380 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1381 type, dbm); 1382 1383 vif = ath6kl_vif_first(ar); 1384 if (!vif) 1385 return -EIO; 1386 1387 if (!ath6kl_cfg80211_ready(vif)) 1388 return -EIO; 1389 1390 switch (type) { 1391 case NL80211_TX_POWER_AUTOMATIC: 1392 return 0; 1393 case NL80211_TX_POWER_LIMITED: 1394 ar->tx_pwr = dbm; 1395 break; 1396 default: 1397 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1398 __func__, type); 1399 return -EOPNOTSUPP; 1400 } 1401 1402 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1403 1404 return 0; 1405 } 1406 1407 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1408 struct wireless_dev *wdev, 1409 int *dbm) 1410 { 1411 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1412 struct ath6kl_vif *vif; 1413 1414 vif = ath6kl_vif_first(ar); 1415 if (!vif) 1416 return -EIO; 1417 1418 if (!ath6kl_cfg80211_ready(vif)) 1419 return -EIO; 1420 1421 if (test_bit(CONNECTED, &vif->flags)) { 1422 ar->tx_pwr = 0; 1423 1424 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1425 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1426 return -EIO; 1427 } 1428 1429 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1430 5 * HZ); 1431 1432 if (signal_pending(current)) { 1433 ath6kl_err("target did not respond\n"); 1434 return -EINTR; 1435 } 1436 } 1437 1438 *dbm = ar->tx_pwr; 1439 return 0; 1440 } 1441 1442 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1443 struct net_device *dev, 1444 bool pmgmt, int timeout) 1445 { 1446 struct ath6kl *ar = ath6kl_priv(dev); 1447 struct wmi_power_mode_cmd mode; 1448 struct ath6kl_vif *vif = netdev_priv(dev); 1449 1450 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1451 __func__, pmgmt, timeout); 1452 1453 if (!ath6kl_cfg80211_ready(vif)) 1454 return -EIO; 1455 1456 if (pmgmt) { 1457 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1458 mode.pwr_mode = REC_POWER; 1459 } else { 1460 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1461 mode.pwr_mode = MAX_PERF_POWER; 1462 } 1463 1464 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1465 mode.pwr_mode) != 0) { 1466 ath6kl_err("wmi_powermode_cmd failed\n"); 1467 return -EIO; 1468 } 1469 1470 return 0; 1471 } 1472 1473 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1474 const char *name, 1475 enum nl80211_iftype type, 1476 u32 *flags, 1477 struct vif_params *params) 1478 { 1479 struct ath6kl *ar = wiphy_priv(wiphy); 1480 struct wireless_dev *wdev; 1481 u8 if_idx, nw_type; 1482 1483 if (ar->num_vif == ar->vif_max) { 1484 ath6kl_err("Reached maximum number of supported vif\n"); 1485 return ERR_PTR(-EINVAL); 1486 } 1487 1488 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1489 ath6kl_err("Not a supported interface type\n"); 1490 return ERR_PTR(-EINVAL); 1491 } 1492 1493 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1494 if (!wdev) 1495 return ERR_PTR(-ENOMEM); 1496 1497 ar->num_vif++; 1498 1499 return wdev; 1500 } 1501 1502 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1503 struct wireless_dev *wdev) 1504 { 1505 struct ath6kl *ar = wiphy_priv(wiphy); 1506 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1507 1508 spin_lock_bh(&ar->list_lock); 1509 list_del(&vif->list); 1510 spin_unlock_bh(&ar->list_lock); 1511 1512 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); 1513 1514 ath6kl_cfg80211_vif_cleanup(vif); 1515 1516 return 0; 1517 } 1518 1519 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1520 struct net_device *ndev, 1521 enum nl80211_iftype type, u32 *flags, 1522 struct vif_params *params) 1523 { 1524 struct ath6kl_vif *vif = netdev_priv(ndev); 1525 int i; 1526 1527 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1528 1529 /* 1530 * Don't bring up p2p on an interface which is not initialized 1531 * for p2p operation where fw does not have capability to switch 1532 * dynamically between non-p2p and p2p type interface. 1533 */ 1534 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1535 vif->ar->fw_capabilities) && 1536 (type == NL80211_IFTYPE_P2P_CLIENT || 1537 type == NL80211_IFTYPE_P2P_GO)) { 1538 if (vif->ar->vif_max == 1) { 1539 if (vif->fw_vif_idx != 0) 1540 return -EINVAL; 1541 else 1542 goto set_iface_type; 1543 } 1544 1545 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1546 if (i == vif->fw_vif_idx) 1547 break; 1548 } 1549 1550 if (i == vif->ar->vif_max) { 1551 ath6kl_err("Invalid interface to bring up P2P\n"); 1552 return -EINVAL; 1553 } 1554 } 1555 1556 /* need to clean up enhanced bmiss detection fw state */ 1557 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1558 1559 set_iface_type: 1560 switch (type) { 1561 case NL80211_IFTYPE_STATION: 1562 vif->next_mode = INFRA_NETWORK; 1563 break; 1564 case NL80211_IFTYPE_ADHOC: 1565 vif->next_mode = ADHOC_NETWORK; 1566 break; 1567 case NL80211_IFTYPE_AP: 1568 vif->next_mode = AP_NETWORK; 1569 break; 1570 case NL80211_IFTYPE_P2P_CLIENT: 1571 vif->next_mode = INFRA_NETWORK; 1572 break; 1573 case NL80211_IFTYPE_P2P_GO: 1574 vif->next_mode = AP_NETWORK; 1575 break; 1576 default: 1577 ath6kl_err("invalid interface type %u\n", type); 1578 return -EOPNOTSUPP; 1579 } 1580 1581 vif->wdev.iftype = type; 1582 1583 return 0; 1584 } 1585 1586 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1587 struct net_device *dev, 1588 struct cfg80211_ibss_params *ibss_param) 1589 { 1590 struct ath6kl *ar = ath6kl_priv(dev); 1591 struct ath6kl_vif *vif = netdev_priv(dev); 1592 int status; 1593 1594 if (!ath6kl_cfg80211_ready(vif)) 1595 return -EIO; 1596 1597 vif->ssid_len = ibss_param->ssid_len; 1598 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1599 1600 if (ibss_param->chandef.chan) 1601 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1602 1603 if (ibss_param->channel_fixed) { 1604 /* 1605 * TODO: channel_fixed: The channel should be fixed, do not 1606 * search for IBSSs to join on other channels. Target 1607 * firmware does not support this feature, needs to be 1608 * updated. 1609 */ 1610 return -EOPNOTSUPP; 1611 } 1612 1613 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1614 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1615 memcpy(vif->req_bssid, ibss_param->bssid, 1616 sizeof(vif->req_bssid)); 1617 1618 ath6kl_set_wpa_version(vif, 0); 1619 1620 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1621 if (status) 1622 return status; 1623 1624 if (ibss_param->privacy) { 1625 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1626 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1627 } else { 1628 ath6kl_set_cipher(vif, 0, true); 1629 ath6kl_set_cipher(vif, 0, false); 1630 } 1631 1632 vif->nw_type = vif->next_mode; 1633 1634 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1635 "%s: connect called with authmode %d dot11 auth %d" 1636 " PW crypto %d PW crypto len %d GRP crypto %d" 1637 " GRP crypto len %d channel hint %u\n", 1638 __func__, 1639 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1640 vif->prwise_crypto_len, vif->grp_crypto, 1641 vif->grp_crypto_len, vif->ch_hint); 1642 1643 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1644 vif->dot11_auth_mode, vif->auth_mode, 1645 vif->prwise_crypto, 1646 vif->prwise_crypto_len, 1647 vif->grp_crypto, vif->grp_crypto_len, 1648 vif->ssid_len, vif->ssid, 1649 vif->req_bssid, vif->ch_hint, 1650 ar->connect_ctrl_flags, SUBTYPE_NONE); 1651 set_bit(CONNECT_PEND, &vif->flags); 1652 1653 return 0; 1654 } 1655 1656 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1657 struct net_device *dev) 1658 { 1659 struct ath6kl_vif *vif = netdev_priv(dev); 1660 1661 if (!ath6kl_cfg80211_ready(vif)) 1662 return -EIO; 1663 1664 ath6kl_disconnect(vif); 1665 memset(vif->ssid, 0, sizeof(vif->ssid)); 1666 vif->ssid_len = 0; 1667 1668 return 0; 1669 } 1670 1671 static const u32 cipher_suites[] = { 1672 WLAN_CIPHER_SUITE_WEP40, 1673 WLAN_CIPHER_SUITE_WEP104, 1674 WLAN_CIPHER_SUITE_TKIP, 1675 WLAN_CIPHER_SUITE_CCMP, 1676 CCKM_KRK_CIPHER_SUITE, 1677 WLAN_CIPHER_SUITE_SMS4, 1678 }; 1679 1680 static bool is_rate_legacy(s32 rate) 1681 { 1682 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1683 6000, 9000, 12000, 18000, 24000, 1684 36000, 48000, 54000 1685 }; 1686 u8 i; 1687 1688 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1689 if (rate == legacy[i]) 1690 return true; 1691 1692 return false; 1693 } 1694 1695 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1696 { 1697 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1698 52000, 58500, 65000, 72200 1699 }; 1700 u8 i; 1701 1702 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1703 if (rate == ht20[i]) { 1704 if (i == ARRAY_SIZE(ht20) - 1) 1705 /* last rate uses sgi */ 1706 *sgi = true; 1707 else 1708 *sgi = false; 1709 1710 *mcs = i; 1711 return true; 1712 } 1713 } 1714 return false; 1715 } 1716 1717 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1718 { 1719 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1720 81000, 108000, 121500, 135000, 1721 150000 1722 }; 1723 u8 i; 1724 1725 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1726 if (rate == ht40[i]) { 1727 if (i == ARRAY_SIZE(ht40) - 1) 1728 /* last rate uses sgi */ 1729 *sgi = true; 1730 else 1731 *sgi = false; 1732 1733 *mcs = i; 1734 return true; 1735 } 1736 } 1737 1738 return false; 1739 } 1740 1741 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1742 u8 *mac, struct station_info *sinfo) 1743 { 1744 struct ath6kl *ar = ath6kl_priv(dev); 1745 struct ath6kl_vif *vif = netdev_priv(dev); 1746 long left; 1747 bool sgi; 1748 s32 rate; 1749 int ret; 1750 u8 mcs; 1751 1752 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1753 return -ENOENT; 1754 1755 if (down_interruptible(&ar->sem)) 1756 return -EBUSY; 1757 1758 set_bit(STATS_UPDATE_PEND, &vif->flags); 1759 1760 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1761 1762 if (ret != 0) { 1763 up(&ar->sem); 1764 return -EIO; 1765 } 1766 1767 left = wait_event_interruptible_timeout(ar->event_wq, 1768 !test_bit(STATS_UPDATE_PEND, 1769 &vif->flags), 1770 WMI_TIMEOUT); 1771 1772 up(&ar->sem); 1773 1774 if (left == 0) 1775 return -ETIMEDOUT; 1776 else if (left < 0) 1777 return left; 1778 1779 if (vif->target_stats.rx_byte) { 1780 sinfo->rx_bytes = vif->target_stats.rx_byte; 1781 sinfo->filled |= STATION_INFO_RX_BYTES; 1782 sinfo->rx_packets = vif->target_stats.rx_pkt; 1783 sinfo->filled |= STATION_INFO_RX_PACKETS; 1784 } 1785 1786 if (vif->target_stats.tx_byte) { 1787 sinfo->tx_bytes = vif->target_stats.tx_byte; 1788 sinfo->filled |= STATION_INFO_TX_BYTES; 1789 sinfo->tx_packets = vif->target_stats.tx_pkt; 1790 sinfo->filled |= STATION_INFO_TX_PACKETS; 1791 } 1792 1793 sinfo->signal = vif->target_stats.cs_rssi; 1794 sinfo->filled |= STATION_INFO_SIGNAL; 1795 1796 rate = vif->target_stats.tx_ucast_rate; 1797 1798 if (is_rate_legacy(rate)) { 1799 sinfo->txrate.legacy = rate / 100; 1800 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1801 if (sgi) { 1802 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1803 sinfo->txrate.mcs = mcs - 1; 1804 } else { 1805 sinfo->txrate.mcs = mcs; 1806 } 1807 1808 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1809 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1810 if (sgi) { 1811 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1812 sinfo->txrate.mcs = mcs - 1; 1813 } else { 1814 sinfo->txrate.mcs = mcs; 1815 } 1816 1817 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1818 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1819 } else { 1820 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1821 "invalid rate from stats: %d\n", rate); 1822 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1823 return 0; 1824 } 1825 1826 sinfo->filled |= STATION_INFO_TX_BITRATE; 1827 1828 if (test_bit(CONNECTED, &vif->flags) && 1829 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1830 vif->nw_type == INFRA_NETWORK) { 1831 sinfo->filled |= STATION_INFO_BSS_PARAM; 1832 sinfo->bss_param.flags = 0; 1833 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1834 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1835 } 1836 1837 return 0; 1838 } 1839 1840 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1841 struct cfg80211_pmksa *pmksa) 1842 { 1843 struct ath6kl *ar = ath6kl_priv(netdev); 1844 struct ath6kl_vif *vif = netdev_priv(netdev); 1845 1846 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1847 pmksa->pmkid, true); 1848 } 1849 1850 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1851 struct cfg80211_pmksa *pmksa) 1852 { 1853 struct ath6kl *ar = ath6kl_priv(netdev); 1854 struct ath6kl_vif *vif = netdev_priv(netdev); 1855 1856 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1857 pmksa->pmkid, false); 1858 } 1859 1860 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1861 { 1862 struct ath6kl *ar = ath6kl_priv(netdev); 1863 struct ath6kl_vif *vif = netdev_priv(netdev); 1864 1865 if (test_bit(CONNECTED, &vif->flags)) 1866 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1867 vif->bssid, NULL, false); 1868 return 0; 1869 } 1870 1871 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1872 struct cfg80211_wowlan *wow, u32 *filter) 1873 { 1874 int ret, pos; 1875 u8 mask[WOW_PATTERN_SIZE]; 1876 u16 i; 1877 1878 /* Configure the patterns that we received from the user. */ 1879 for (i = 0; i < wow->n_patterns; i++) { 1880 1881 /* 1882 * Convert given nl80211 specific mask value to equivalent 1883 * driver specific mask value and send it to the chip along 1884 * with patterns. For example, If the mask value defined in 1885 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1886 * then equivalent driver specific mask value is 1887 * "0xFF 0x00 0xFF 0x00". 1888 */ 1889 memset(&mask, 0, sizeof(mask)); 1890 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1891 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1892 mask[pos] = 0xFF; 1893 } 1894 /* 1895 * Note: Pattern's offset is not passed as part of wowlan 1896 * parameter from CFG layer. So it's always passed as ZERO 1897 * to the firmware. It means, given WOW patterns are always 1898 * matched from the first byte of received pkt in the firmware. 1899 */ 1900 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1901 vif->fw_vif_idx, WOW_LIST_ID, 1902 wow->patterns[i].pattern_len, 1903 0 /* pattern offset */, 1904 wow->patterns[i].pattern, mask); 1905 if (ret) 1906 return ret; 1907 } 1908 1909 if (wow->disconnect) 1910 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1911 1912 if (wow->magic_pkt) 1913 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1914 1915 if (wow->gtk_rekey_failure) 1916 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1917 1918 if (wow->eap_identity_req) 1919 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1920 1921 if (wow->four_way_handshake) 1922 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1923 1924 return 0; 1925 } 1926 1927 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1928 { 1929 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1930 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1931 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1932 0x00, 0x08 }; 1933 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1934 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1935 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1936 0x00, 0x7f }; 1937 u8 unicst_offset = 0; 1938 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1939 static const u8 arp_mask[] = { 0xff, 0xff }; 1940 u8 arp_offset = 20; 1941 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1942 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1943 u8 discvr_offset = 38; 1944 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1945 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1946 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1947 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1948 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1949 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1950 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1951 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1952 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1953 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1954 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1955 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1956 u8 dhcp_offset = 0; 1957 int ret; 1958 1959 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1960 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1961 vif->fw_vif_idx, WOW_LIST_ID, 1962 sizeof(unicst_pattern), unicst_offset, 1963 unicst_pattern, unicst_mask); 1964 if (ret) { 1965 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1966 return ret; 1967 } 1968 1969 /* Setup all ARP pkt pattern */ 1970 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1971 vif->fw_vif_idx, WOW_LIST_ID, 1972 sizeof(arp_pattern), arp_offset, 1973 arp_pattern, arp_mask); 1974 if (ret) { 1975 ath6kl_err("failed to add WOW ARP pattern\n"); 1976 return ret; 1977 } 1978 1979 /* 1980 * Setup multicast pattern for mDNS 224.0.0.251, 1981 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 1982 */ 1983 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1984 vif->fw_vif_idx, WOW_LIST_ID, 1985 sizeof(discvr_pattern), discvr_offset, 1986 discvr_pattern, discvr_mask); 1987 if (ret) { 1988 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 1989 return ret; 1990 } 1991 1992 /* Setup all DHCP broadcast pkt pattern */ 1993 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1994 vif->fw_vif_idx, WOW_LIST_ID, 1995 sizeof(dhcp_pattern), dhcp_offset, 1996 dhcp_pattern, dhcp_mask); 1997 if (ret) { 1998 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 1999 return ret; 2000 } 2001 2002 return 0; 2003 } 2004 2005 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2006 { 2007 struct net_device *ndev = vif->ndev; 2008 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2009 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2010 u8 discvr_offset = 38; 2011 u8 mac_mask[ETH_ALEN]; 2012 int ret; 2013 2014 /* Setup unicast pkt pattern */ 2015 memset(mac_mask, 0xff, ETH_ALEN); 2016 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2017 vif->fw_vif_idx, WOW_LIST_ID, 2018 ETH_ALEN, 0, ndev->dev_addr, 2019 mac_mask); 2020 if (ret) { 2021 ath6kl_err("failed to add WOW unicast pattern\n"); 2022 return ret; 2023 } 2024 2025 /* 2026 * Setup multicast pattern for mDNS 224.0.0.251, 2027 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2028 */ 2029 if ((ndev->flags & IFF_ALLMULTI) || 2030 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2031 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2032 vif->fw_vif_idx, WOW_LIST_ID, 2033 sizeof(discvr_pattern), discvr_offset, 2034 discvr_pattern, discvr_mask); 2035 if (ret) { 2036 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2037 return ret; 2038 } 2039 } 2040 2041 return 0; 2042 } 2043 2044 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2045 { 2046 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2047 } 2048 2049 static bool is_ctrl_ep_empty(struct ath6kl *ar) 2050 { 2051 return !ar->tx_pending[ar->ctrl_ep]; 2052 } 2053 2054 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2055 { 2056 int ret, left; 2057 2058 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2059 2060 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2061 ATH6KL_HOST_MODE_ASLEEP); 2062 if (ret) 2063 return ret; 2064 2065 left = wait_event_interruptible_timeout(ar->event_wq, 2066 is_hsleep_mode_procsed(vif), 2067 WMI_TIMEOUT); 2068 if (left == 0) { 2069 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2070 ret = -ETIMEDOUT; 2071 } else if (left < 0) { 2072 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2073 left); 2074 ret = left; 2075 } 2076 2077 if (ar->tx_pending[ar->ctrl_ep]) { 2078 left = wait_event_interruptible_timeout(ar->event_wq, 2079 is_ctrl_ep_empty(ar), 2080 WMI_TIMEOUT); 2081 if (left == 0) { 2082 ath6kl_warn("clear wmi ctrl data timeout\n"); 2083 ret = -ETIMEDOUT; 2084 } else if (left < 0) { 2085 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2086 ret = left; 2087 } 2088 } 2089 2090 return ret; 2091 } 2092 2093 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2094 struct cfg80211_wowlan *wow, u32 *filter) 2095 { 2096 struct ath6kl *ar = vif->ar; 2097 struct in_device *in_dev; 2098 struct in_ifaddr *ifa; 2099 int ret; 2100 u16 i, bmiss_time; 2101 __be32 ips[MAX_IP_ADDRS]; 2102 u8 index = 0; 2103 2104 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2105 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2106 ar->fw_capabilities)) { 2107 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2108 vif->fw_vif_idx, false); 2109 if (ret) 2110 return ret; 2111 } 2112 2113 /* Clear existing WOW patterns */ 2114 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2115 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2116 WOW_LIST_ID, i); 2117 2118 /* 2119 * Skip the default WOW pattern configuration 2120 * if the driver receives any WOW patterns from 2121 * the user. 2122 */ 2123 if (wow) 2124 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2125 else if (vif->nw_type == AP_NETWORK) 2126 ret = ath6kl_wow_ap(ar, vif); 2127 else 2128 ret = ath6kl_wow_sta(ar, vif); 2129 2130 if (ret) 2131 return ret; 2132 2133 netif_stop_queue(vif->ndev); 2134 2135 if (vif->nw_type != AP_NETWORK) { 2136 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2137 ATH6KL_MAX_WOW_LISTEN_INTL, 2138 0); 2139 if (ret) 2140 return ret; 2141 2142 /* Set listen interval x 15 times as bmiss time */ 2143 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2144 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2145 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2146 2147 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2148 bmiss_time, 0); 2149 if (ret) 2150 return ret; 2151 2152 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2153 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2154 0, 0, 0, 0); 2155 if (ret) 2156 return ret; 2157 } 2158 2159 /* Setup own IP addr for ARP agent. */ 2160 in_dev = __in_dev_get_rtnl(vif->ndev); 2161 if (!in_dev) 2162 return 0; 2163 2164 ifa = in_dev->ifa_list; 2165 memset(&ips, 0, sizeof(ips)); 2166 2167 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2168 while (index < MAX_IP_ADDRS && ifa) { 2169 ips[index] = ifa->ifa_local; 2170 ifa = ifa->ifa_next; 2171 index++; 2172 } 2173 2174 if (ifa) { 2175 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2176 return -EINVAL; 2177 } 2178 2179 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2180 if (ret) { 2181 ath6kl_err("fail to setup ip for arp agent\n"); 2182 return ret; 2183 } 2184 2185 return ret; 2186 } 2187 2188 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2189 { 2190 struct ath6kl_vif *first_vif, *vif; 2191 int ret = 0; 2192 u32 filter = 0; 2193 bool connected = false; 2194 2195 /* enter / leave wow suspend on first vif always */ 2196 first_vif = ath6kl_vif_first(ar); 2197 if (WARN_ON(unlikely(!first_vif)) || 2198 !ath6kl_cfg80211_ready(first_vif)) 2199 return -EIO; 2200 2201 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2202 return -EINVAL; 2203 2204 /* install filters for each connected vif */ 2205 spin_lock_bh(&ar->list_lock); 2206 list_for_each_entry(vif, &ar->vif_list, list) { 2207 if (!test_bit(CONNECTED, &vif->flags) || 2208 !ath6kl_cfg80211_ready(vif)) 2209 continue; 2210 connected = true; 2211 2212 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2213 if (ret) 2214 break; 2215 } 2216 spin_unlock_bh(&ar->list_lock); 2217 2218 if (!connected) 2219 return -ENOTCONN; 2220 else if (ret) 2221 return ret; 2222 2223 ar->state = ATH6KL_STATE_SUSPENDING; 2224 2225 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2226 ATH6KL_WOW_MODE_ENABLE, 2227 filter, 2228 WOW_HOST_REQ_DELAY); 2229 if (ret) 2230 return ret; 2231 2232 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2233 } 2234 2235 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2236 { 2237 struct ath6kl *ar = vif->ar; 2238 int ret; 2239 2240 if (vif->nw_type != AP_NETWORK) { 2241 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2242 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2243 if (ret) 2244 return ret; 2245 2246 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2247 vif->listen_intvl_t, 0); 2248 if (ret) 2249 return ret; 2250 2251 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2252 vif->bmiss_time_t, 0); 2253 if (ret) 2254 return ret; 2255 } 2256 2257 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2258 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2259 ar->fw_capabilities)) { 2260 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2261 vif->fw_vif_idx, true); 2262 if (ret) 2263 return ret; 2264 } 2265 2266 netif_wake_queue(vif->ndev); 2267 2268 return 0; 2269 } 2270 2271 static int ath6kl_wow_resume(struct ath6kl *ar) 2272 { 2273 struct ath6kl_vif *vif; 2274 int ret; 2275 2276 vif = ath6kl_vif_first(ar); 2277 if (WARN_ON(unlikely(!vif)) || 2278 !ath6kl_cfg80211_ready(vif)) 2279 return -EIO; 2280 2281 ar->state = ATH6KL_STATE_RESUMING; 2282 2283 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2284 ATH6KL_HOST_MODE_AWAKE); 2285 if (ret) { 2286 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2287 ret); 2288 goto cleanup; 2289 } 2290 2291 spin_lock_bh(&ar->list_lock); 2292 list_for_each_entry(vif, &ar->vif_list, list) { 2293 if (!test_bit(CONNECTED, &vif->flags) || 2294 !ath6kl_cfg80211_ready(vif)) 2295 continue; 2296 ret = ath6kl_wow_resume_vif(vif); 2297 if (ret) 2298 break; 2299 } 2300 spin_unlock_bh(&ar->list_lock); 2301 2302 if (ret) 2303 goto cleanup; 2304 2305 ar->state = ATH6KL_STATE_ON; 2306 return 0; 2307 2308 cleanup: 2309 ar->state = ATH6KL_STATE_WOW; 2310 return ret; 2311 } 2312 2313 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2314 { 2315 struct ath6kl_vif *vif; 2316 int ret; 2317 2318 vif = ath6kl_vif_first(ar); 2319 if (!vif) 2320 return -EIO; 2321 2322 if (!test_bit(WMI_READY, &ar->flag)) { 2323 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2324 return -EIO; 2325 } 2326 2327 ath6kl_cfg80211_stop_all(ar); 2328 2329 /* Save the current power mode before enabling power save */ 2330 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2331 2332 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2333 if (ret) 2334 return ret; 2335 2336 /* Disable WOW mode */ 2337 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2338 ATH6KL_WOW_MODE_DISABLE, 2339 0, 0); 2340 if (ret) 2341 return ret; 2342 2343 /* Flush all non control pkts in TX path */ 2344 ath6kl_tx_data_cleanup(ar); 2345 2346 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2347 if (ret) 2348 return ret; 2349 2350 return 0; 2351 } 2352 2353 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2354 { 2355 struct ath6kl_vif *vif; 2356 int ret; 2357 2358 vif = ath6kl_vif_first(ar); 2359 2360 if (!vif) 2361 return -EIO; 2362 2363 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2364 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2365 ar->wmi->saved_pwr_mode); 2366 if (ret) 2367 return ret; 2368 } 2369 2370 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2371 ATH6KL_HOST_MODE_AWAKE); 2372 if (ret) 2373 return ret; 2374 2375 ar->state = ATH6KL_STATE_ON; 2376 2377 /* Reset scan parameter to default values */ 2378 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2379 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2380 if (ret) 2381 return ret; 2382 2383 return 0; 2384 } 2385 2386 int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2387 enum ath6kl_cfg_suspend_mode mode, 2388 struct cfg80211_wowlan *wow) 2389 { 2390 struct ath6kl_vif *vif; 2391 enum ath6kl_state prev_state; 2392 int ret; 2393 2394 switch (mode) { 2395 case ATH6KL_CFG_SUSPEND_WOW: 2396 2397 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2398 2399 /* Flush all non control pkts in TX path */ 2400 ath6kl_tx_data_cleanup(ar); 2401 2402 prev_state = ar->state; 2403 2404 ret = ath6kl_wow_suspend(ar, wow); 2405 if (ret) { 2406 ar->state = prev_state; 2407 return ret; 2408 } 2409 2410 ar->state = ATH6KL_STATE_WOW; 2411 break; 2412 2413 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2414 2415 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2416 2417 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2418 if (ret) { 2419 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2420 return ret; 2421 } 2422 2423 ar->state = ATH6KL_STATE_DEEPSLEEP; 2424 2425 break; 2426 2427 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2428 2429 ath6kl_cfg80211_stop_all(ar); 2430 2431 if (ar->state == ATH6KL_STATE_OFF) { 2432 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2433 "suspend hw off, no action for cutpower\n"); 2434 break; 2435 } 2436 2437 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2438 2439 ret = ath6kl_init_hw_stop(ar); 2440 if (ret) { 2441 ath6kl_warn("failed to stop hw during suspend: %d\n", 2442 ret); 2443 } 2444 2445 ar->state = ATH6KL_STATE_CUTPOWER; 2446 2447 break; 2448 2449 default: 2450 break; 2451 } 2452 2453 list_for_each_entry(vif, &ar->vif_list, list) 2454 ath6kl_cfg80211_scan_complete_event(vif, true); 2455 2456 return 0; 2457 } 2458 EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2459 2460 int ath6kl_cfg80211_resume(struct ath6kl *ar) 2461 { 2462 int ret; 2463 2464 switch (ar->state) { 2465 case ATH6KL_STATE_WOW: 2466 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2467 2468 ret = ath6kl_wow_resume(ar); 2469 if (ret) { 2470 ath6kl_warn("wow mode resume failed: %d\n", ret); 2471 return ret; 2472 } 2473 2474 break; 2475 2476 case ATH6KL_STATE_DEEPSLEEP: 2477 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2478 2479 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2480 if (ret) { 2481 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2482 return ret; 2483 } 2484 break; 2485 2486 case ATH6KL_STATE_CUTPOWER: 2487 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2488 2489 ret = ath6kl_init_hw_start(ar); 2490 if (ret) { 2491 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2492 return ret; 2493 } 2494 break; 2495 2496 default: 2497 break; 2498 } 2499 2500 return 0; 2501 } 2502 EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2503 2504 #ifdef CONFIG_PM 2505 2506 /* hif layer decides what suspend mode to use */ 2507 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2508 struct cfg80211_wowlan *wow) 2509 { 2510 struct ath6kl *ar = wiphy_priv(wiphy); 2511 2512 ath6kl_recovery_suspend(ar); 2513 2514 return ath6kl_hif_suspend(ar, wow); 2515 } 2516 2517 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2518 { 2519 struct ath6kl *ar = wiphy_priv(wiphy); 2520 int err; 2521 2522 err = ath6kl_hif_resume(ar); 2523 if (err) 2524 return err; 2525 2526 ath6kl_recovery_resume(ar); 2527 2528 return 0; 2529 } 2530 2531 /* 2532 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2533 * both sdio irq wake up and keep power. The target pulls sdio data line to 2534 * wake up the host when WOW pattern matches. This causes sdio irq handler 2535 * is being called in the host side which internally hits ath6kl's RX path. 2536 * 2537 * Since sdio interrupt is not disabled, RX path executes even before 2538 * the host executes the actual resume operation from PM module. 2539 * 2540 * In the current scenario, WOW resume should happen before start processing 2541 * any data from the target. So It's required to perform WOW resume in RX path. 2542 * Ideally we should perform WOW resume only in the actual platform 2543 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2544 * 2545 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2546 */ 2547 void ath6kl_check_wow_status(struct ath6kl *ar) 2548 { 2549 if (ar->state == ATH6KL_STATE_SUSPENDING) 2550 return; 2551 2552 if (ar->state == ATH6KL_STATE_WOW) 2553 ath6kl_cfg80211_resume(ar); 2554 } 2555 2556 #else 2557 2558 void ath6kl_check_wow_status(struct ath6kl *ar) 2559 { 2560 } 2561 #endif 2562 2563 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band, 2564 bool ht_enable) 2565 { 2566 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2567 2568 if (htcap->ht_enable == ht_enable) 2569 return 0; 2570 2571 if (ht_enable) { 2572 /* Set default ht capabilities */ 2573 htcap->ht_enable = true; 2574 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ? 2575 ath6kl_g_htcap : ath6kl_a_htcap; 2576 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2577 } else /* Disable ht */ 2578 memset(htcap, 0, sizeof(*htcap)); 2579 2580 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2581 band, htcap); 2582 } 2583 2584 static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2585 { 2586 struct wiphy *wiphy = vif->ar->wiphy; 2587 int band, ret = 0; 2588 2589 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 2590 if (!wiphy->bands[band]) 2591 continue; 2592 2593 ret = ath6kl_set_htcap(vif, band, 2594 wiphy->bands[band]->ht_cap.ht_supported); 2595 if (ret) 2596 return ret; 2597 } 2598 2599 return ret; 2600 } 2601 2602 static bool ath6kl_is_p2p_ie(const u8 *pos) 2603 { 2604 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2605 pos[2] == 0x50 && pos[3] == 0x6f && 2606 pos[4] == 0x9a && pos[5] == 0x09; 2607 } 2608 2609 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2610 const u8 *ies, size_t ies_len) 2611 { 2612 struct ath6kl *ar = vif->ar; 2613 const u8 *pos; 2614 u8 *buf = NULL; 2615 size_t len = 0; 2616 int ret; 2617 2618 /* 2619 * Filter out P2P IE(s) since they will be included depending on 2620 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2621 */ 2622 2623 if (ies && ies_len) { 2624 buf = kmalloc(ies_len, GFP_KERNEL); 2625 if (buf == NULL) 2626 return -ENOMEM; 2627 pos = ies; 2628 while (pos + 1 < ies + ies_len) { 2629 if (pos + 2 + pos[1] > ies + ies_len) 2630 break; 2631 if (!ath6kl_is_p2p_ie(pos)) { 2632 memcpy(buf + len, pos, 2 + pos[1]); 2633 len += 2 + pos[1]; 2634 } 2635 pos += 2 + pos[1]; 2636 } 2637 } 2638 2639 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2640 WMI_FRAME_PROBE_RESP, buf, len); 2641 kfree(buf); 2642 return ret; 2643 } 2644 2645 static int ath6kl_set_ies(struct ath6kl_vif *vif, 2646 struct cfg80211_beacon_data *info) 2647 { 2648 struct ath6kl *ar = vif->ar; 2649 int res; 2650 2651 /* this also clears IE in fw if it's not set */ 2652 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2653 WMI_FRAME_BEACON, 2654 info->beacon_ies, 2655 info->beacon_ies_len); 2656 if (res) 2657 return res; 2658 2659 /* this also clears IE in fw if it's not set */ 2660 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2661 info->proberesp_ies_len); 2662 if (res) 2663 return res; 2664 2665 /* this also clears IE in fw if it's not set */ 2666 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2667 WMI_FRAME_ASSOC_RESP, 2668 info->assocresp_ies, 2669 info->assocresp_ies_len); 2670 if (res) 2671 return res; 2672 2673 return 0; 2674 } 2675 2676 void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, bool enable) 2677 { 2678 int err; 2679 2680 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 2681 return; 2682 2683 if (vif->nw_type != INFRA_NETWORK) 2684 return; 2685 2686 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 2687 vif->ar->fw_capabilities)) 2688 return; 2689 2690 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 2691 enable ? "enable" : "disable"); 2692 2693 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 2694 vif->fw_vif_idx, enable); 2695 if (err) 2696 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 2697 enable ? "enable" : "disable", err); 2698 } 2699 2700 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2701 u8 *rsn_capab) 2702 { 2703 const u8 *rsn_ie; 2704 size_t rsn_ie_len; 2705 u16 cnt; 2706 2707 if (!beacon->tail) 2708 return -EINVAL; 2709 2710 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2711 if (!rsn_ie) 2712 return -EINVAL; 2713 2714 rsn_ie_len = *(rsn_ie + 1); 2715 /* skip element id and length */ 2716 rsn_ie += 2; 2717 2718 /* skip version */ 2719 if (rsn_ie_len < 2) 2720 return -EINVAL; 2721 rsn_ie += 2; 2722 rsn_ie_len -= 2; 2723 2724 /* skip group cipher suite */ 2725 if (rsn_ie_len < 4) 2726 return 0; 2727 rsn_ie += 4; 2728 rsn_ie_len -= 4; 2729 2730 /* skip pairwise cipher suite */ 2731 if (rsn_ie_len < 2) 2732 return 0; 2733 cnt = get_unaligned_le16(rsn_ie); 2734 rsn_ie += (2 + cnt * 4); 2735 rsn_ie_len -= (2 + cnt * 4); 2736 2737 /* skip akm suite */ 2738 if (rsn_ie_len < 2) 2739 return 0; 2740 cnt = get_unaligned_le16(rsn_ie); 2741 rsn_ie += (2 + cnt * 4); 2742 rsn_ie_len -= (2 + cnt * 4); 2743 2744 if (rsn_ie_len < 2) 2745 return 0; 2746 2747 memcpy(rsn_capab, rsn_ie, 2); 2748 2749 return 0; 2750 } 2751 2752 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2753 struct cfg80211_ap_settings *info) 2754 { 2755 struct ath6kl *ar = ath6kl_priv(dev); 2756 struct ath6kl_vif *vif = netdev_priv(dev); 2757 struct ieee80211_mgmt *mgmt; 2758 bool hidden = false; 2759 u8 *ies; 2760 int ies_len; 2761 struct wmi_connect_cmd p; 2762 int res; 2763 int i, ret; 2764 u16 rsn_capab = 0; 2765 int inactivity_timeout = 0; 2766 2767 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2768 2769 if (!ath6kl_cfg80211_ready(vif)) 2770 return -EIO; 2771 2772 if (vif->next_mode != AP_NETWORK) 2773 return -EOPNOTSUPP; 2774 2775 res = ath6kl_set_ies(vif, &info->beacon); 2776 2777 ar->ap_mode_bkey.valid = false; 2778 2779 /* TODO: 2780 * info->interval 2781 */ 2782 2783 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2784 info->dtim_period); 2785 2786 /* ignore error, just print a warning and continue normally */ 2787 if (ret) 2788 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2789 2790 if (info->beacon.head == NULL) 2791 return -EINVAL; 2792 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2793 ies = mgmt->u.beacon.variable; 2794 if (ies > info->beacon.head + info->beacon.head_len) 2795 return -EINVAL; 2796 ies_len = info->beacon.head + info->beacon.head_len - ies; 2797 2798 if (info->ssid == NULL) 2799 return -EINVAL; 2800 memcpy(vif->ssid, info->ssid, info->ssid_len); 2801 vif->ssid_len = info->ssid_len; 2802 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2803 hidden = true; 2804 2805 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2806 if (res) 2807 return res; 2808 2809 ret = ath6kl_set_auth_type(vif, info->auth_type); 2810 if (ret) 2811 return ret; 2812 2813 memset(&p, 0, sizeof(p)); 2814 2815 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2816 switch (info->crypto.akm_suites[i]) { 2817 case WLAN_AKM_SUITE_8021X: 2818 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2819 p.auth_mode |= WPA_AUTH; 2820 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2821 p.auth_mode |= WPA2_AUTH; 2822 break; 2823 case WLAN_AKM_SUITE_PSK: 2824 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2825 p.auth_mode |= WPA_PSK_AUTH; 2826 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2827 p.auth_mode |= WPA2_PSK_AUTH; 2828 break; 2829 } 2830 } 2831 if (p.auth_mode == 0) 2832 p.auth_mode = NONE_AUTH; 2833 vif->auth_mode = p.auth_mode; 2834 2835 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2836 switch (info->crypto.ciphers_pairwise[i]) { 2837 case WLAN_CIPHER_SUITE_WEP40: 2838 case WLAN_CIPHER_SUITE_WEP104: 2839 p.prwise_crypto_type |= WEP_CRYPT; 2840 break; 2841 case WLAN_CIPHER_SUITE_TKIP: 2842 p.prwise_crypto_type |= TKIP_CRYPT; 2843 break; 2844 case WLAN_CIPHER_SUITE_CCMP: 2845 p.prwise_crypto_type |= AES_CRYPT; 2846 break; 2847 case WLAN_CIPHER_SUITE_SMS4: 2848 p.prwise_crypto_type |= WAPI_CRYPT; 2849 break; 2850 } 2851 } 2852 if (p.prwise_crypto_type == 0) { 2853 p.prwise_crypto_type = NONE_CRYPT; 2854 ath6kl_set_cipher(vif, 0, true); 2855 } else if (info->crypto.n_ciphers_pairwise == 1) 2856 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 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 2903 inactivity_timeout = info->inactivity_timeout; 2904 2905 if (ar->hw.flags & ATH6KL_HW_AP_INACTIVITY_MINS) 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 u8 *mac) 2981 { 2982 struct ath6kl *ar = ath6kl_priv(dev); 2983 struct ath6kl_vif *vif = netdev_priv(dev); 2984 const u8 *addr = mac ? 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 u8 *mac, struct station_parameters *params) 2992 { 2993 struct ath6kl *ar = ath6kl_priv(dev); 2994 struct ath6kl_vif *vif = netdev_priv(dev); 2995 2996 if (vif->nw_type != AP_NETWORK) 2997 return -EOPNOTSUPP; 2998 2999 /* Use this only for authorizing/unauthorizing a station */ 3000 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 3001 return -EOPNOTSUPP; 3002 3003 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3004 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3005 WMI_AP_MLME_AUTHORIZE, mac, 0); 3006 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3007 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3008 } 3009 3010 static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3011 struct wireless_dev *wdev, 3012 struct ieee80211_channel *chan, 3013 unsigned int duration, 3014 u64 *cookie) 3015 { 3016 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3017 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3018 u32 id; 3019 3020 /* TODO: if already pending or ongoing remain-on-channel, 3021 * return -EBUSY */ 3022 id = ++vif->last_roc_id; 3023 if (id == 0) { 3024 /* Do not use 0 as the cookie value */ 3025 id = ++vif->last_roc_id; 3026 } 3027 *cookie = id; 3028 3029 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3030 chan->center_freq, duration); 3031 } 3032 3033 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3034 struct wireless_dev *wdev, 3035 u64 cookie) 3036 { 3037 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3038 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3039 3040 if (cookie != vif->last_roc_id) 3041 return -ENOENT; 3042 vif->last_cancel_roc_id = cookie; 3043 3044 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3045 } 3046 3047 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3048 const u8 *buf, size_t len, 3049 unsigned int freq) 3050 { 3051 struct ath6kl *ar = vif->ar; 3052 const u8 *pos; 3053 u8 *p2p; 3054 int p2p_len; 3055 int ret; 3056 const struct ieee80211_mgmt *mgmt; 3057 3058 mgmt = (const struct ieee80211_mgmt *) buf; 3059 3060 /* Include P2P IE(s) from the frame generated in user space. */ 3061 3062 p2p = kmalloc(len, GFP_KERNEL); 3063 if (p2p == NULL) 3064 return -ENOMEM; 3065 p2p_len = 0; 3066 3067 pos = mgmt->u.probe_resp.variable; 3068 while (pos + 1 < buf + len) { 3069 if (pos + 2 + pos[1] > buf + len) 3070 break; 3071 if (ath6kl_is_p2p_ie(pos)) { 3072 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3073 p2p_len += 2 + pos[1]; 3074 } 3075 pos += 2 + pos[1]; 3076 } 3077 3078 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3079 mgmt->da, p2p, p2p_len); 3080 kfree(p2p); 3081 return ret; 3082 } 3083 3084 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3085 u32 id, 3086 u32 freq, 3087 u32 wait, 3088 const u8 *buf, 3089 size_t len, 3090 bool *more_data, 3091 bool no_cck) 3092 { 3093 struct ieee80211_mgmt *mgmt; 3094 struct ath6kl_sta *conn; 3095 bool is_psq_empty = false; 3096 struct ath6kl_mgmt_buff *mgmt_buf; 3097 size_t mgmt_buf_size; 3098 struct ath6kl *ar = vif->ar; 3099 3100 mgmt = (struct ieee80211_mgmt *) buf; 3101 if (is_multicast_ether_addr(mgmt->da)) 3102 return false; 3103 3104 conn = ath6kl_find_sta(vif, mgmt->da); 3105 if (!conn) 3106 return false; 3107 3108 if (conn->sta_flags & STA_PS_SLEEP) { 3109 if (!(conn->sta_flags & STA_PS_POLLED)) { 3110 /* Queue the frames if the STA is sleeping */ 3111 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3112 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3113 if (!mgmt_buf) 3114 return false; 3115 3116 INIT_LIST_HEAD(&mgmt_buf->list); 3117 mgmt_buf->id = id; 3118 mgmt_buf->freq = freq; 3119 mgmt_buf->wait = wait; 3120 mgmt_buf->len = len; 3121 mgmt_buf->no_cck = no_cck; 3122 memcpy(mgmt_buf->buf, buf, len); 3123 spin_lock_bh(&conn->psq_lock); 3124 is_psq_empty = skb_queue_empty(&conn->psq) && 3125 (conn->mgmt_psq_len == 0); 3126 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3127 conn->mgmt_psq_len++; 3128 spin_unlock_bh(&conn->psq_lock); 3129 3130 /* 3131 * If this is the first pkt getting queued 3132 * for this STA, update the PVB for this 3133 * STA. 3134 */ 3135 if (is_psq_empty) 3136 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3137 conn->aid, 1); 3138 return true; 3139 } 3140 3141 /* 3142 * This tx is because of a PsPoll. 3143 * Determine if MoreData bit has to be set. 3144 */ 3145 spin_lock_bh(&conn->psq_lock); 3146 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3147 *more_data = true; 3148 spin_unlock_bh(&conn->psq_lock); 3149 } 3150 3151 return false; 3152 } 3153 3154 /* Check if SSID length is greater than DIRECT- */ 3155 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3156 { 3157 const struct ieee80211_mgmt *mgmt; 3158 mgmt = (const struct ieee80211_mgmt *) buf; 3159 3160 /* variable[1] contains the SSID tag length */ 3161 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3162 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3163 return true; 3164 } 3165 3166 return false; 3167 } 3168 3169 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3170 struct ieee80211_channel *chan, bool offchan, 3171 unsigned int wait, const u8 *buf, size_t len, 3172 bool no_cck, bool dont_wait_for_ack, u64 *cookie) 3173 { 3174 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3175 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3176 u32 id; 3177 const struct ieee80211_mgmt *mgmt; 3178 bool more_data, queued; 3179 3180 mgmt = (const struct ieee80211_mgmt *) buf; 3181 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3182 ieee80211_is_probe_resp(mgmt->frame_control) && 3183 ath6kl_is_p2p_go_ssid(buf, len)) { 3184 /* 3185 * Send Probe Response frame in GO mode using a separate WMI 3186 * command to allow the target to fill in the generic IEs. 3187 */ 3188 *cookie = 0; /* TX status not supported */ 3189 return ath6kl_send_go_probe_resp(vif, buf, len, 3190 chan->center_freq); 3191 } 3192 3193 id = vif->send_action_id++; 3194 if (id == 0) { 3195 /* 3196 * 0 is a reserved value in the WMI command and shall not be 3197 * used for the command. 3198 */ 3199 id = vif->send_action_id++; 3200 } 3201 3202 *cookie = id; 3203 3204 /* AP mode Power saving processing */ 3205 if (vif->nw_type == AP_NETWORK) { 3206 queued = ath6kl_mgmt_powersave_ap(vif, 3207 id, chan->center_freq, 3208 wait, buf, 3209 len, &more_data, no_cck); 3210 if (queued) 3211 return 0; 3212 } 3213 3214 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, 3215 chan->center_freq, wait, 3216 buf, len, no_cck); 3217 } 3218 3219 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3220 struct wireless_dev *wdev, 3221 u16 frame_type, bool reg) 3222 { 3223 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3224 3225 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3226 __func__, frame_type, reg); 3227 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3228 /* 3229 * Note: This notification callback is not allowed to sleep, so 3230 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3231 * hardcode target to report Probe Request frames all the time. 3232 */ 3233 vif->probe_req_report = reg; 3234 } 3235 } 3236 3237 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3238 struct net_device *dev, 3239 struct cfg80211_sched_scan_request *request) 3240 { 3241 struct ath6kl *ar = ath6kl_priv(dev); 3242 struct ath6kl_vif *vif = netdev_priv(dev); 3243 u16 interval; 3244 int ret, rssi_thold; 3245 3246 if (ar->state != ATH6KL_STATE_ON) 3247 return -EIO; 3248 3249 if (vif->sme_state != SME_DISCONNECTED) 3250 return -EBUSY; 3251 3252 ath6kl_cfg80211_scan_complete_event(vif, true); 3253 3254 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3255 request->n_ssids, 3256 request->match_sets, 3257 request->n_match_sets); 3258 if (ret < 0) 3259 return ret; 3260 3261 if (!request->n_match_sets) { 3262 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3263 ALL_BSS_FILTER, 0); 3264 if (ret < 0) 3265 return ret; 3266 } else { 3267 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3268 MATCHED_SSID_FILTER, 0); 3269 if (ret < 0) 3270 return ret; 3271 } 3272 3273 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3274 ar->fw_capabilities)) { 3275 if (request->rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3276 rssi_thold = 0; 3277 else if (request->rssi_thold < -127) 3278 rssi_thold = -127; 3279 else 3280 rssi_thold = request->rssi_thold; 3281 3282 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3283 rssi_thold); 3284 if (ret) { 3285 ath6kl_err("failed to set RSSI threshold for scan\n"); 3286 return ret; 3287 } 3288 } 3289 3290 /* fw uses seconds, also make sure that it's >0 */ 3291 interval = max_t(u16, 1, request->interval / 1000); 3292 3293 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3294 interval, interval, 3295 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3296 3297 /* this also clears IE in fw if it's not set */ 3298 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3299 WMI_FRAME_PROBE_REQ, 3300 request->ie, request->ie_len); 3301 if (ret) { 3302 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3303 ret); 3304 return ret; 3305 } 3306 3307 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3308 if (ret) 3309 return ret; 3310 3311 set_bit(SCHED_SCANNING, &vif->flags); 3312 3313 return 0; 3314 } 3315 3316 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3317 struct net_device *dev) 3318 { 3319 struct ath6kl_vif *vif = netdev_priv(dev); 3320 bool stopped; 3321 3322 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3323 3324 if (!stopped) 3325 return -EIO; 3326 3327 return 0; 3328 } 3329 3330 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3331 struct net_device *dev, 3332 const u8 *addr, 3333 const struct cfg80211_bitrate_mask *mask) 3334 { 3335 struct ath6kl *ar = ath6kl_priv(dev); 3336 struct ath6kl_vif *vif = netdev_priv(dev); 3337 3338 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3339 mask); 3340 } 3341 3342 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3343 struct net_device *dev, 3344 u32 rate, u32 pkts, u32 intvl) 3345 { 3346 struct ath6kl *ar = ath6kl_priv(dev); 3347 struct ath6kl_vif *vif = netdev_priv(dev); 3348 3349 if (vif->nw_type != INFRA_NETWORK || 3350 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3351 return -EOPNOTSUPP; 3352 3353 if (vif->sme_state != SME_CONNECTED) 3354 return -ENOTCONN; 3355 3356 /* save this since the firmware won't report the interval */ 3357 vif->txe_intvl = intvl; 3358 3359 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3360 rate, pkts, intvl); 3361 } 3362 3363 static const struct ieee80211_txrx_stypes 3364 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3365 [NL80211_IFTYPE_STATION] = { 3366 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3367 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3368 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3369 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3370 }, 3371 [NL80211_IFTYPE_AP] = { 3372 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3373 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3374 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3375 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3376 }, 3377 [NL80211_IFTYPE_P2P_CLIENT] = { 3378 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3379 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3380 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3381 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3382 }, 3383 [NL80211_IFTYPE_P2P_GO] = { 3384 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3385 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3386 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3387 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3388 }, 3389 }; 3390 3391 static struct cfg80211_ops ath6kl_cfg80211_ops = { 3392 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3393 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3394 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3395 .scan = ath6kl_cfg80211_scan, 3396 .connect = ath6kl_cfg80211_connect, 3397 .disconnect = ath6kl_cfg80211_disconnect, 3398 .add_key = ath6kl_cfg80211_add_key, 3399 .get_key = ath6kl_cfg80211_get_key, 3400 .del_key = ath6kl_cfg80211_del_key, 3401 .set_default_key = ath6kl_cfg80211_set_default_key, 3402 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3403 .set_tx_power = ath6kl_cfg80211_set_txpower, 3404 .get_tx_power = ath6kl_cfg80211_get_txpower, 3405 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3406 .join_ibss = ath6kl_cfg80211_join_ibss, 3407 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3408 .get_station = ath6kl_get_station, 3409 .set_pmksa = ath6kl_set_pmksa, 3410 .del_pmksa = ath6kl_del_pmksa, 3411 .flush_pmksa = ath6kl_flush_pmksa, 3412 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3413 #ifdef CONFIG_PM 3414 .suspend = __ath6kl_cfg80211_suspend, 3415 .resume = __ath6kl_cfg80211_resume, 3416 #endif 3417 .start_ap = ath6kl_start_ap, 3418 .change_beacon = ath6kl_change_beacon, 3419 .stop_ap = ath6kl_stop_ap, 3420 .del_station = ath6kl_del_station, 3421 .change_station = ath6kl_change_station, 3422 .remain_on_channel = ath6kl_remain_on_channel, 3423 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3424 .mgmt_tx = ath6kl_mgmt_tx, 3425 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3426 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3427 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3428 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3429 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3430 }; 3431 3432 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3433 { 3434 ath6kl_cfg80211_sscan_disable(vif); 3435 3436 switch (vif->sme_state) { 3437 case SME_DISCONNECTED: 3438 break; 3439 case SME_CONNECTING: 3440 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3441 NULL, 0, 3442 WLAN_STATUS_UNSPECIFIED_FAILURE, 3443 GFP_KERNEL); 3444 break; 3445 case SME_CONNECTED: 3446 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3447 break; 3448 } 3449 3450 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3451 (test_bit(CONNECTED, &vif->flags) || 3452 test_bit(CONNECT_PEND, &vif->flags))) 3453 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3454 3455 vif->sme_state = SME_DISCONNECTED; 3456 clear_bit(CONNECTED, &vif->flags); 3457 clear_bit(CONNECT_PEND, &vif->flags); 3458 3459 /* Stop netdev queues, needed during recovery */ 3460 netif_stop_queue(vif->ndev); 3461 netif_carrier_off(vif->ndev); 3462 3463 /* disable scanning */ 3464 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3465 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3466 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3467 ath6kl_warn("failed to disable scan during stop\n"); 3468 3469 ath6kl_cfg80211_scan_complete_event(vif, true); 3470 } 3471 3472 void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3473 { 3474 struct ath6kl_vif *vif; 3475 3476 vif = ath6kl_vif_first(ar); 3477 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3478 /* save the current power mode before enabling power save */ 3479 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3480 3481 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3482 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3483 return; 3484 } 3485 3486 /* 3487 * FIXME: we should take ar->list_lock to protect changes in the 3488 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3489 * sleeps. 3490 */ 3491 list_for_each_entry(vif, &ar->vif_list, list) 3492 ath6kl_cfg80211_stop(vif); 3493 } 3494 3495 static int ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3496 struct regulatory_request *request) 3497 { 3498 struct ath6kl *ar = wiphy_priv(wiphy); 3499 u32 rates[IEEE80211_NUM_BANDS]; 3500 int ret, i; 3501 3502 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3503 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3504 request->alpha2[0], request->alpha2[1], 3505 request->intersect ? " intersect" : "", 3506 request->processed ? " processed" : "", 3507 request->initiator, request->user_reg_hint_type); 3508 3509 /* 3510 * As firmware is not able intersect regdoms, we can only listen to 3511 * cellular hints. 3512 */ 3513 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3514 return -EOPNOTSUPP; 3515 3516 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3517 if (ret) { 3518 ath6kl_err("failed to set regdomain: %d\n", ret); 3519 return ret; 3520 } 3521 3522 /* 3523 * Firmware will apply the regdomain change only after a scan is 3524 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3525 * changed. 3526 */ 3527 3528 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 3529 if (wiphy->bands[i]) 3530 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3531 3532 3533 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3534 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3535 0, NULL, false, rates); 3536 if (ret) { 3537 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3538 ret); 3539 return ret; 3540 } 3541 3542 return 0; 3543 } 3544 3545 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3546 { 3547 vif->aggr_cntxt = aggr_init(vif); 3548 if (!vif->aggr_cntxt) { 3549 ath6kl_err("failed to initialize aggr\n"); 3550 return -ENOMEM; 3551 } 3552 3553 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3554 (unsigned long) vif->ndev); 3555 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3556 (unsigned long) vif); 3557 3558 set_bit(WMM_ENABLED, &vif->flags); 3559 spin_lock_init(&vif->if_lock); 3560 3561 INIT_LIST_HEAD(&vif->mc_filter); 3562 3563 return 0; 3564 } 3565 3566 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3567 { 3568 struct ath6kl *ar = vif->ar; 3569 struct ath6kl_mc_filter *mc_filter, *tmp; 3570 3571 aggr_module_destroy(vif->aggr_cntxt); 3572 3573 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3574 3575 if (vif->nw_type == ADHOC_NETWORK) 3576 ar->ibss_if_active = false; 3577 3578 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3579 list_del(&mc_filter->list); 3580 kfree(mc_filter); 3581 } 3582 3583 unregister_netdevice(vif->ndev); 3584 3585 ar->num_vif--; 3586 } 3587 3588 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3589 enum nl80211_iftype type, 3590 u8 fw_vif_idx, u8 nw_type) 3591 { 3592 struct net_device *ndev; 3593 struct ath6kl_vif *vif; 3594 3595 ndev = alloc_netdev(sizeof(*vif), name, ether_setup); 3596 if (!ndev) 3597 return NULL; 3598 3599 vif = netdev_priv(ndev); 3600 ndev->ieee80211_ptr = &vif->wdev; 3601 vif->wdev.wiphy = ar->wiphy; 3602 vif->ar = ar; 3603 vif->ndev = ndev; 3604 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3605 vif->wdev.netdev = ndev; 3606 vif->wdev.iftype = type; 3607 vif->fw_vif_idx = fw_vif_idx; 3608 vif->nw_type = nw_type; 3609 vif->next_mode = nw_type; 3610 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3611 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3612 vif->bg_scan_period = 0; 3613 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3614 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3615 3616 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3617 if (fw_vif_idx != 0) { 3618 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3619 0x2; 3620 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3621 ar->fw_capabilities)) 3622 ndev->dev_addr[4] ^= 0x80; 3623 } 3624 3625 init_netdev(ndev); 3626 3627 ath6kl_init_control_info(vif); 3628 3629 if (ath6kl_cfg80211_vif_init(vif)) 3630 goto err; 3631 3632 if (register_netdevice(ndev)) 3633 goto err; 3634 3635 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3636 vif->sme_state = SME_DISCONNECTED; 3637 set_bit(WLAN_ENABLED, &vif->flags); 3638 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3639 set_bit(NETDEV_REGISTERED, &vif->flags); 3640 3641 if (type == NL80211_IFTYPE_ADHOC) 3642 ar->ibss_if_active = true; 3643 3644 spin_lock_bh(&ar->list_lock); 3645 list_add_tail(&vif->list, &ar->vif_list); 3646 spin_unlock_bh(&ar->list_lock); 3647 3648 return &vif->wdev; 3649 3650 err: 3651 aggr_module_destroy(vif->aggr_cntxt); 3652 free_netdev(ndev); 3653 return NULL; 3654 } 3655 3656 int ath6kl_cfg80211_init(struct ath6kl *ar) 3657 { 3658 struct wiphy *wiphy = ar->wiphy; 3659 bool band_2gig = false, band_5gig = false, ht = false; 3660 int ret; 3661 3662 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3663 3664 wiphy->max_remain_on_channel_duration = 5000; 3665 3666 /* set device pointer for wiphy */ 3667 set_wiphy_dev(wiphy, ar->dev); 3668 3669 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3670 BIT(NL80211_IFTYPE_ADHOC) | 3671 BIT(NL80211_IFTYPE_AP); 3672 if (ar->p2p) { 3673 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3674 BIT(NL80211_IFTYPE_P2P_CLIENT); 3675 } 3676 3677 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) && 3678 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3679 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3680 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3681 } 3682 3683 /* max num of ssids that can be probed during scanning */ 3684 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3685 3686 /* max num of ssids that can be matched after scan */ 3687 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3688 ar->fw_capabilities)) 3689 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3690 3691 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3692 switch (ar->hw.cap) { 3693 case WMI_11AN_CAP: 3694 ht = true; 3695 case WMI_11A_CAP: 3696 band_5gig = true; 3697 break; 3698 case WMI_11GN_CAP: 3699 ht = true; 3700 case WMI_11G_CAP: 3701 band_2gig = true; 3702 break; 3703 case WMI_11AGN_CAP: 3704 ht = true; 3705 case WMI_11AG_CAP: 3706 band_2gig = true; 3707 band_5gig = true; 3708 break; 3709 default: 3710 ath6kl_err("invalid phy capability!\n"); 3711 return -EINVAL; 3712 } 3713 3714 /* 3715 * Even if the fw has HT support, advertise HT cap only when 3716 * the firmware has support to override RSN capability, otherwise 3717 * 4-way handshake would fail. 3718 */ 3719 if (!(ht && 3720 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3721 ar->fw_capabilities))) { 3722 ath6kl_band_2ghz.ht_cap.cap = 0; 3723 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3724 ath6kl_band_5ghz.ht_cap.cap = 0; 3725 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3726 } 3727 3728 if (ar->hw.flags & ATH6KL_HW_64BIT_RATES) { 3729 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3730 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3731 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3732 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3733 } else { 3734 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3735 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3736 } 3737 3738 if (band_2gig) 3739 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3740 if (band_5gig) 3741 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3742 3743 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3744 3745 wiphy->cipher_suites = cipher_suites; 3746 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3747 3748 #ifdef CONFIG_PM 3749 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | 3750 WIPHY_WOWLAN_DISCONNECT | 3751 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3752 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3753 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3754 WIPHY_WOWLAN_4WAY_HANDSHAKE; 3755 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; 3756 wiphy->wowlan.pattern_min_len = 1; 3757 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; 3758 #endif 3759 3760 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3761 3762 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3763 WIPHY_FLAG_HAVE_AP_SME | 3764 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3765 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3766 3767 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3768 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3769 3770 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3771 ar->fw_capabilities)) 3772 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3773 3774 ar->wiphy->probe_resp_offload = 3775 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3776 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3777 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3778 3779 ret = wiphy_register(wiphy); 3780 if (ret < 0) { 3781 ath6kl_err("couldn't register wiphy device\n"); 3782 return ret; 3783 } 3784 3785 ar->wiphy_registered = true; 3786 3787 return 0; 3788 } 3789 3790 void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3791 { 3792 wiphy_unregister(ar->wiphy); 3793 3794 ar->wiphy_registered = false; 3795 } 3796 3797 struct ath6kl *ath6kl_cfg80211_create(void) 3798 { 3799 struct ath6kl *ar; 3800 struct wiphy *wiphy; 3801 3802 /* create a new wiphy for use with cfg80211 */ 3803 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3804 3805 if (!wiphy) { 3806 ath6kl_err("couldn't allocate wiphy device\n"); 3807 return NULL; 3808 } 3809 3810 ar = wiphy_priv(wiphy); 3811 ar->wiphy = wiphy; 3812 3813 return ar; 3814 } 3815 3816 /* Note: ar variable must not be accessed after calling this! */ 3817 void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3818 { 3819 int i; 3820 3821 for (i = 0; i < AP_MAX_NUM_STA; i++) 3822 kfree(ar->sta_list[i].aggr_conn); 3823 3824 wiphy_free(ar->wiphy); 3825 } 3826 3827