cfg80211.c revision eb922e4b41fd315f4ef95fef0ca1051b61cd5538
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 56struct ath6kl_cfg80211_match_probe_ssid { 57 struct cfg80211_ssid ssid; 58 u8 flag; 59}; 60 61static 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 86static 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 103static 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 125static 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 134static 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 */ 146static 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 163static 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 176static 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 195static 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 223static 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 266static 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 285static 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 302static 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 309static bool ath6kl_is_rsn_ie(const u8 *pos) 310{ 311 return pos[0] == WLAN_EID_RSN; 312} 313 314static 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 322static 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 368static 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 390static 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 425static 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 431static 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 655static struct cfg80211_bss * 656ath6kl_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 709void 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 789static 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 828void 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 886static 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 965static 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 1047void 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 1069out: 1070 cfg80211_scan_done(vif->scan_req, aborted); 1071 vif->scan_req = NULL; 1072} 1073 1074void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1075 enum wmi_phy_mode mode) 1076{ 1077 enum nl80211_channel_type type; 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 type = (mode == WMI_11G_HT20) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT; 1084 1085 cfg80211_ch_switch_notify(vif->ndev, freq, type); 1086} 1087 1088static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1089 u8 key_index, bool pairwise, 1090 const u8 *mac_addr, 1091 struct key_params *params) 1092{ 1093 struct ath6kl *ar = ath6kl_priv(ndev); 1094 struct ath6kl_vif *vif = netdev_priv(ndev); 1095 struct ath6kl_key *key = NULL; 1096 int seq_len; 1097 u8 key_usage; 1098 u8 key_type; 1099 1100 if (!ath6kl_cfg80211_ready(vif)) 1101 return -EIO; 1102 1103 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1104 if (params->key_len != WMI_KRK_LEN) 1105 return -EINVAL; 1106 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1107 params->key); 1108 } 1109 1110 if (key_index > WMI_MAX_KEY_INDEX) { 1111 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1112 "%s: key index %d out of bounds\n", __func__, 1113 key_index); 1114 return -ENOENT; 1115 } 1116 1117 key = &vif->keys[key_index]; 1118 memset(key, 0, sizeof(struct ath6kl_key)); 1119 1120 if (pairwise) 1121 key_usage = PAIRWISE_USAGE; 1122 else 1123 key_usage = GROUP_USAGE; 1124 1125 seq_len = params->seq_len; 1126 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1127 seq_len > ATH6KL_KEY_SEQ_LEN) { 1128 /* Only first half of the WPI PN is configured */ 1129 seq_len = ATH6KL_KEY_SEQ_LEN; 1130 } 1131 if (params->key_len > WLAN_MAX_KEY_LEN || 1132 seq_len > sizeof(key->seq)) 1133 return -EINVAL; 1134 1135 key->key_len = params->key_len; 1136 memcpy(key->key, params->key, key->key_len); 1137 key->seq_len = seq_len; 1138 memcpy(key->seq, params->seq, key->seq_len); 1139 key->cipher = params->cipher; 1140 1141 switch (key->cipher) { 1142 case WLAN_CIPHER_SUITE_WEP40: 1143 case WLAN_CIPHER_SUITE_WEP104: 1144 key_type = WEP_CRYPT; 1145 break; 1146 1147 case WLAN_CIPHER_SUITE_TKIP: 1148 key_type = TKIP_CRYPT; 1149 break; 1150 1151 case WLAN_CIPHER_SUITE_CCMP: 1152 key_type = AES_CRYPT; 1153 break; 1154 case WLAN_CIPHER_SUITE_SMS4: 1155 key_type = WAPI_CRYPT; 1156 break; 1157 1158 default: 1159 return -ENOTSUPP; 1160 } 1161 1162 if (((vif->auth_mode == WPA_PSK_AUTH) || 1163 (vif->auth_mode == WPA2_PSK_AUTH)) && 1164 (key_usage & GROUP_USAGE)) 1165 del_timer(&vif->disconnect_timer); 1166 1167 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1168 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1169 __func__, key_index, key->key_len, key_type, 1170 key_usage, key->seq_len); 1171 1172 if (vif->nw_type == AP_NETWORK && !pairwise && 1173 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1174 key_type == WAPI_CRYPT)) { 1175 ar->ap_mode_bkey.valid = true; 1176 ar->ap_mode_bkey.key_index = key_index; 1177 ar->ap_mode_bkey.key_type = key_type; 1178 ar->ap_mode_bkey.key_len = key->key_len; 1179 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1180 if (!test_bit(CONNECTED, &vif->flags)) { 1181 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1182 "Delay initial group key configuration until AP mode has been started\n"); 1183 /* 1184 * The key will be set in ath6kl_connect_ap_mode() once 1185 * the connected event is received from the target. 1186 */ 1187 return 0; 1188 } 1189 } 1190 1191 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1192 !test_bit(CONNECTED, &vif->flags)) { 1193 /* 1194 * Store the key locally so that it can be re-configured after 1195 * the AP mode has properly started 1196 * (ath6kl_install_statioc_wep_keys). 1197 */ 1198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1199 "Delay WEP key configuration until AP mode has been started\n"); 1200 vif->wep_key_list[key_index].key_len = key->key_len; 1201 memcpy(vif->wep_key_list[key_index].key, key->key, 1202 key->key_len); 1203 return 0; 1204 } 1205 1206 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1207 key_type, key_usage, key->key_len, 1208 key->seq, key->seq_len, key->key, 1209 KEY_OP_INIT_VAL, 1210 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1211} 1212 1213static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1214 u8 key_index, bool pairwise, 1215 const u8 *mac_addr) 1216{ 1217 struct ath6kl *ar = ath6kl_priv(ndev); 1218 struct ath6kl_vif *vif = netdev_priv(ndev); 1219 1220 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1221 1222 if (!ath6kl_cfg80211_ready(vif)) 1223 return -EIO; 1224 1225 if (key_index > WMI_MAX_KEY_INDEX) { 1226 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1227 "%s: key index %d out of bounds\n", __func__, 1228 key_index); 1229 return -ENOENT; 1230 } 1231 1232 if (!vif->keys[key_index].key_len) { 1233 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1234 "%s: index %d is empty\n", __func__, key_index); 1235 return 0; 1236 } 1237 1238 vif->keys[key_index].key_len = 0; 1239 1240 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1241} 1242 1243static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1244 u8 key_index, bool pairwise, 1245 const u8 *mac_addr, void *cookie, 1246 void (*callback) (void *cookie, 1247 struct key_params *)) 1248{ 1249 struct ath6kl_vif *vif = netdev_priv(ndev); 1250 struct ath6kl_key *key = NULL; 1251 struct key_params params; 1252 1253 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1254 1255 if (!ath6kl_cfg80211_ready(vif)) 1256 return -EIO; 1257 1258 if (key_index > WMI_MAX_KEY_INDEX) { 1259 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1260 "%s: key index %d out of bounds\n", __func__, 1261 key_index); 1262 return -ENOENT; 1263 } 1264 1265 key = &vif->keys[key_index]; 1266 memset(¶ms, 0, sizeof(params)); 1267 params.cipher = key->cipher; 1268 params.key_len = key->key_len; 1269 params.seq_len = key->seq_len; 1270 params.seq = key->seq; 1271 params.key = key->key; 1272 1273 callback(cookie, ¶ms); 1274 1275 return key->key_len ? 0 : -ENOENT; 1276} 1277 1278static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1279 struct net_device *ndev, 1280 u8 key_index, bool unicast, 1281 bool multicast) 1282{ 1283 struct ath6kl *ar = ath6kl_priv(ndev); 1284 struct ath6kl_vif *vif = netdev_priv(ndev); 1285 struct ath6kl_key *key = NULL; 1286 u8 key_usage; 1287 enum crypto_type key_type = NONE_CRYPT; 1288 1289 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1290 1291 if (!ath6kl_cfg80211_ready(vif)) 1292 return -EIO; 1293 1294 if (key_index > WMI_MAX_KEY_INDEX) { 1295 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1296 "%s: key index %d out of bounds\n", 1297 __func__, key_index); 1298 return -ENOENT; 1299 } 1300 1301 if (!vif->keys[key_index].key_len) { 1302 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1303 __func__, key_index); 1304 return -EINVAL; 1305 } 1306 1307 vif->def_txkey_index = key_index; 1308 key = &vif->keys[vif->def_txkey_index]; 1309 key_usage = GROUP_USAGE; 1310 if (vif->prwise_crypto == WEP_CRYPT) 1311 key_usage |= TX_USAGE; 1312 if (unicast) 1313 key_type = vif->prwise_crypto; 1314 if (multicast) 1315 key_type = vif->grp_crypto; 1316 1317 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1318 return 0; /* Delay until AP mode has been started */ 1319 1320 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1321 vif->def_txkey_index, 1322 key_type, key_usage, 1323 key->key_len, key->seq, key->seq_len, 1324 key->key, 1325 KEY_OP_INIT_VAL, NULL, 1326 SYNC_BOTH_WMIFLAG); 1327} 1328 1329void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1330 bool ismcast) 1331{ 1332 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1333 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1334 1335 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1336 (ismcast ? NL80211_KEYTYPE_GROUP : 1337 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1338 GFP_KERNEL); 1339} 1340 1341static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1342{ 1343 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1344 struct ath6kl_vif *vif; 1345 int ret; 1346 1347 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1348 changed); 1349 1350 vif = ath6kl_vif_first(ar); 1351 if (!vif) 1352 return -EIO; 1353 1354 if (!ath6kl_cfg80211_ready(vif)) 1355 return -EIO; 1356 1357 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1358 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1359 if (ret != 0) { 1360 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1361 return -EIO; 1362 } 1363 } 1364 1365 return 0; 1366} 1367 1368/* 1369 * The type nl80211_tx_power_setting replaces the following 1370 * data type from 2.6.36 onwards 1371*/ 1372static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 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 1407static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) 1408{ 1409 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1410 struct ath6kl_vif *vif; 1411 1412 vif = ath6kl_vif_first(ar); 1413 if (!vif) 1414 return -EIO; 1415 1416 if (!ath6kl_cfg80211_ready(vif)) 1417 return -EIO; 1418 1419 if (test_bit(CONNECTED, &vif->flags)) { 1420 ar->tx_pwr = 0; 1421 1422 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1423 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1424 return -EIO; 1425 } 1426 1427 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1428 5 * HZ); 1429 1430 if (signal_pending(current)) { 1431 ath6kl_err("target did not respond\n"); 1432 return -EINTR; 1433 } 1434 } 1435 1436 *dbm = ar->tx_pwr; 1437 return 0; 1438} 1439 1440static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1441 struct net_device *dev, 1442 bool pmgmt, int timeout) 1443{ 1444 struct ath6kl *ar = ath6kl_priv(dev); 1445 struct wmi_power_mode_cmd mode; 1446 struct ath6kl_vif *vif = netdev_priv(dev); 1447 1448 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1449 __func__, pmgmt, timeout); 1450 1451 if (!ath6kl_cfg80211_ready(vif)) 1452 return -EIO; 1453 1454 if (pmgmt) { 1455 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1456 mode.pwr_mode = REC_POWER; 1457 } else { 1458 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1459 mode.pwr_mode = MAX_PERF_POWER; 1460 } 1461 1462 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1463 mode.pwr_mode) != 0) { 1464 ath6kl_err("wmi_powermode_cmd failed\n"); 1465 return -EIO; 1466 } 1467 1468 return 0; 1469} 1470 1471static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1472 const char *name, 1473 enum nl80211_iftype type, 1474 u32 *flags, 1475 struct vif_params *params) 1476{ 1477 struct ath6kl *ar = wiphy_priv(wiphy); 1478 struct wireless_dev *wdev; 1479 u8 if_idx, nw_type; 1480 1481 if (ar->num_vif == ar->vif_max) { 1482 ath6kl_err("Reached maximum number of supported vif\n"); 1483 return ERR_PTR(-EINVAL); 1484 } 1485 1486 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1487 ath6kl_err("Not a supported interface type\n"); 1488 return ERR_PTR(-EINVAL); 1489 } 1490 1491 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1492 if (!wdev) 1493 return ERR_PTR(-ENOMEM); 1494 1495 ar->num_vif++; 1496 1497 return wdev; 1498} 1499 1500static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1501 struct wireless_dev *wdev) 1502{ 1503 struct ath6kl *ar = wiphy_priv(wiphy); 1504 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1505 1506 spin_lock_bh(&ar->list_lock); 1507 list_del(&vif->list); 1508 spin_unlock_bh(&ar->list_lock); 1509 1510 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); 1511 1512 ath6kl_cfg80211_vif_cleanup(vif); 1513 1514 return 0; 1515} 1516 1517static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1518 struct net_device *ndev, 1519 enum nl80211_iftype type, u32 *flags, 1520 struct vif_params *params) 1521{ 1522 struct ath6kl_vif *vif = netdev_priv(ndev); 1523 int i; 1524 1525 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1526 1527 /* 1528 * Don't bring up p2p on an interface which is not initialized 1529 * for p2p operation where fw does not have capability to switch 1530 * dynamically between non-p2p and p2p type interface. 1531 */ 1532 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1533 vif->ar->fw_capabilities) && 1534 (type == NL80211_IFTYPE_P2P_CLIENT || 1535 type == NL80211_IFTYPE_P2P_GO)) { 1536 if (vif->ar->vif_max == 1) { 1537 if (vif->fw_vif_idx != 0) 1538 return -EINVAL; 1539 else 1540 goto set_iface_type; 1541 } 1542 1543 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1544 if (i == vif->fw_vif_idx) 1545 break; 1546 } 1547 1548 if (i == vif->ar->vif_max) { 1549 ath6kl_err("Invalid interface to bring up P2P\n"); 1550 return -EINVAL; 1551 } 1552 } 1553 1554 /* need to clean up enhanced bmiss detection fw state */ 1555 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1556 1557set_iface_type: 1558 switch (type) { 1559 case NL80211_IFTYPE_STATION: 1560 case NL80211_IFTYPE_P2P_CLIENT: 1561 vif->next_mode = INFRA_NETWORK; 1562 break; 1563 case NL80211_IFTYPE_ADHOC: 1564 vif->next_mode = ADHOC_NETWORK; 1565 break; 1566 case NL80211_IFTYPE_AP: 1567 case NL80211_IFTYPE_P2P_GO: 1568 vif->next_mode = AP_NETWORK; 1569 break; 1570 default: 1571 ath6kl_err("invalid interface type %u\n", type); 1572 return -EOPNOTSUPP; 1573 } 1574 1575 vif->wdev.iftype = type; 1576 1577 return 0; 1578} 1579 1580static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1581 struct net_device *dev, 1582 struct cfg80211_ibss_params *ibss_param) 1583{ 1584 struct ath6kl *ar = ath6kl_priv(dev); 1585 struct ath6kl_vif *vif = netdev_priv(dev); 1586 int status; 1587 1588 if (!ath6kl_cfg80211_ready(vif)) 1589 return -EIO; 1590 1591 vif->ssid_len = ibss_param->ssid_len; 1592 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1593 1594 if (ibss_param->channel) 1595 vif->ch_hint = ibss_param->channel->center_freq; 1596 1597 if (ibss_param->channel_fixed) { 1598 /* 1599 * TODO: channel_fixed: The channel should be fixed, do not 1600 * search for IBSSs to join on other channels. Target 1601 * firmware does not support this feature, needs to be 1602 * updated. 1603 */ 1604 return -EOPNOTSUPP; 1605 } 1606 1607 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1608 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1609 memcpy(vif->req_bssid, ibss_param->bssid, 1610 sizeof(vif->req_bssid)); 1611 1612 ath6kl_set_wpa_version(vif, 0); 1613 1614 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1615 if (status) 1616 return status; 1617 1618 if (ibss_param->privacy) { 1619 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1620 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1621 } else { 1622 ath6kl_set_cipher(vif, 0, true); 1623 ath6kl_set_cipher(vif, 0, false); 1624 } 1625 1626 vif->nw_type = vif->next_mode; 1627 1628 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1629 "%s: connect called with authmode %d dot11 auth %d" 1630 " PW crypto %d PW crypto len %d GRP crypto %d" 1631 " GRP crypto len %d channel hint %u\n", 1632 __func__, 1633 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1634 vif->prwise_crypto_len, vif->grp_crypto, 1635 vif->grp_crypto_len, vif->ch_hint); 1636 1637 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1638 vif->dot11_auth_mode, vif->auth_mode, 1639 vif->prwise_crypto, 1640 vif->prwise_crypto_len, 1641 vif->grp_crypto, vif->grp_crypto_len, 1642 vif->ssid_len, vif->ssid, 1643 vif->req_bssid, vif->ch_hint, 1644 ar->connect_ctrl_flags, SUBTYPE_NONE); 1645 set_bit(CONNECT_PEND, &vif->flags); 1646 1647 return 0; 1648} 1649 1650static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1651 struct net_device *dev) 1652{ 1653 struct ath6kl_vif *vif = netdev_priv(dev); 1654 1655 if (!ath6kl_cfg80211_ready(vif)) 1656 return -EIO; 1657 1658 ath6kl_disconnect(vif); 1659 memset(vif->ssid, 0, sizeof(vif->ssid)); 1660 vif->ssid_len = 0; 1661 1662 return 0; 1663} 1664 1665static const u32 cipher_suites[] = { 1666 WLAN_CIPHER_SUITE_WEP40, 1667 WLAN_CIPHER_SUITE_WEP104, 1668 WLAN_CIPHER_SUITE_TKIP, 1669 WLAN_CIPHER_SUITE_CCMP, 1670 CCKM_KRK_CIPHER_SUITE, 1671 WLAN_CIPHER_SUITE_SMS4, 1672}; 1673 1674static bool is_rate_legacy(s32 rate) 1675{ 1676 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1677 6000, 9000, 12000, 18000, 24000, 1678 36000, 48000, 54000 1679 }; 1680 u8 i; 1681 1682 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1683 if (rate == legacy[i]) 1684 return true; 1685 1686 return false; 1687} 1688 1689static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1690{ 1691 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1692 52000, 58500, 65000, 72200 1693 }; 1694 u8 i; 1695 1696 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1697 if (rate == ht20[i]) { 1698 if (i == ARRAY_SIZE(ht20) - 1) 1699 /* last rate uses sgi */ 1700 *sgi = true; 1701 else 1702 *sgi = false; 1703 1704 *mcs = i; 1705 return true; 1706 } 1707 } 1708 return false; 1709} 1710 1711static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1712{ 1713 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1714 81000, 108000, 121500, 135000, 1715 150000 1716 }; 1717 u8 i; 1718 1719 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1720 if (rate == ht40[i]) { 1721 if (i == ARRAY_SIZE(ht40) - 1) 1722 /* last rate uses sgi */ 1723 *sgi = true; 1724 else 1725 *sgi = false; 1726 1727 *mcs = i; 1728 return true; 1729 } 1730 } 1731 1732 return false; 1733} 1734 1735static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1736 u8 *mac, struct station_info *sinfo) 1737{ 1738 struct ath6kl *ar = ath6kl_priv(dev); 1739 struct ath6kl_vif *vif = netdev_priv(dev); 1740 long left; 1741 bool sgi; 1742 s32 rate; 1743 int ret; 1744 u8 mcs; 1745 1746 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1747 return -ENOENT; 1748 1749 if (down_interruptible(&ar->sem)) 1750 return -EBUSY; 1751 1752 set_bit(STATS_UPDATE_PEND, &vif->flags); 1753 1754 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1755 1756 if (ret != 0) { 1757 up(&ar->sem); 1758 return -EIO; 1759 } 1760 1761 left = wait_event_interruptible_timeout(ar->event_wq, 1762 !test_bit(STATS_UPDATE_PEND, 1763 &vif->flags), 1764 WMI_TIMEOUT); 1765 1766 up(&ar->sem); 1767 1768 if (left == 0) 1769 return -ETIMEDOUT; 1770 else if (left < 0) 1771 return left; 1772 1773 if (vif->target_stats.rx_byte) { 1774 sinfo->rx_bytes = vif->target_stats.rx_byte; 1775 sinfo->filled |= STATION_INFO_RX_BYTES; 1776 sinfo->rx_packets = vif->target_stats.rx_pkt; 1777 sinfo->filled |= STATION_INFO_RX_PACKETS; 1778 } 1779 1780 if (vif->target_stats.tx_byte) { 1781 sinfo->tx_bytes = vif->target_stats.tx_byte; 1782 sinfo->filled |= STATION_INFO_TX_BYTES; 1783 sinfo->tx_packets = vif->target_stats.tx_pkt; 1784 sinfo->filled |= STATION_INFO_TX_PACKETS; 1785 } 1786 1787 sinfo->signal = vif->target_stats.cs_rssi; 1788 sinfo->filled |= STATION_INFO_SIGNAL; 1789 1790 rate = vif->target_stats.tx_ucast_rate; 1791 1792 if (is_rate_legacy(rate)) { 1793 sinfo->txrate.legacy = rate / 100; 1794 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1795 if (sgi) { 1796 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1797 sinfo->txrate.mcs = mcs - 1; 1798 } else { 1799 sinfo->txrate.mcs = mcs; 1800 } 1801 1802 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1803 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1804 if (sgi) { 1805 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1806 sinfo->txrate.mcs = mcs - 1; 1807 } else { 1808 sinfo->txrate.mcs = mcs; 1809 } 1810 1811 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1812 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1813 } else { 1814 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1815 "invalid rate from stats: %d\n", rate); 1816 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1817 return 0; 1818 } 1819 1820 sinfo->filled |= STATION_INFO_TX_BITRATE; 1821 1822 if (test_bit(CONNECTED, &vif->flags) && 1823 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1824 vif->nw_type == INFRA_NETWORK) { 1825 sinfo->filled |= STATION_INFO_BSS_PARAM; 1826 sinfo->bss_param.flags = 0; 1827 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1828 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1829 } 1830 1831 return 0; 1832} 1833 1834static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1835 struct cfg80211_pmksa *pmksa) 1836{ 1837 struct ath6kl *ar = ath6kl_priv(netdev); 1838 struct ath6kl_vif *vif = netdev_priv(netdev); 1839 1840 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1841 pmksa->pmkid, true); 1842} 1843 1844static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1845 struct cfg80211_pmksa *pmksa) 1846{ 1847 struct ath6kl *ar = ath6kl_priv(netdev); 1848 struct ath6kl_vif *vif = netdev_priv(netdev); 1849 1850 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1851 pmksa->pmkid, false); 1852} 1853 1854static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1855{ 1856 struct ath6kl *ar = ath6kl_priv(netdev); 1857 struct ath6kl_vif *vif = netdev_priv(netdev); 1858 1859 if (test_bit(CONNECTED, &vif->flags)) 1860 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1861 vif->bssid, NULL, false); 1862 return 0; 1863} 1864 1865static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1866 struct cfg80211_wowlan *wow, u32 *filter) 1867{ 1868 int ret, pos; 1869 u8 mask[WOW_PATTERN_SIZE]; 1870 u16 i; 1871 1872 /* Configure the patterns that we received from the user. */ 1873 for (i = 0; i < wow->n_patterns; i++) { 1874 1875 /* 1876 * Convert given nl80211 specific mask value to equivalent 1877 * driver specific mask value and send it to the chip along 1878 * with patterns. For example, If the mask value defined in 1879 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1880 * then equivalent driver specific mask value is 1881 * "0xFF 0x00 0xFF 0x00". 1882 */ 1883 memset(&mask, 0, sizeof(mask)); 1884 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1885 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1886 mask[pos] = 0xFF; 1887 } 1888 /* 1889 * Note: Pattern's offset is not passed as part of wowlan 1890 * parameter from CFG layer. So it's always passed as ZERO 1891 * to the firmware. It means, given WOW patterns are always 1892 * matched from the first byte of received pkt in the firmware. 1893 */ 1894 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1895 vif->fw_vif_idx, WOW_LIST_ID, 1896 wow->patterns[i].pattern_len, 1897 0 /* pattern offset */, 1898 wow->patterns[i].pattern, mask); 1899 if (ret) 1900 return ret; 1901 } 1902 1903 if (wow->disconnect) 1904 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1905 1906 if (wow->magic_pkt) 1907 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1908 1909 if (wow->gtk_rekey_failure) 1910 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1911 1912 if (wow->eap_identity_req) 1913 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1914 1915 if (wow->four_way_handshake) 1916 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1917 1918 return 0; 1919} 1920 1921static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1922{ 1923 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1924 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1925 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1926 0x00, 0x08 }; 1927 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1928 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1929 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1930 0x00, 0x7f }; 1931 u8 unicst_offset = 0; 1932 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1933 static const u8 arp_mask[] = { 0xff, 0xff }; 1934 u8 arp_offset = 20; 1935 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1936 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1937 u8 discvr_offset = 38; 1938 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1939 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1940 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1941 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1942 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1943 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1944 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1945 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1946 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 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, 0xff, 0xff /* port 67 */ }; 1950 u8 dhcp_offset = 0; 1951 int ret; 1952 1953 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1954 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1955 vif->fw_vif_idx, WOW_LIST_ID, 1956 sizeof(unicst_pattern), unicst_offset, 1957 unicst_pattern, unicst_mask); 1958 if (ret) { 1959 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1960 return ret; 1961 } 1962 1963 /* Setup all ARP pkt pattern */ 1964 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1965 vif->fw_vif_idx, WOW_LIST_ID, 1966 sizeof(arp_pattern), arp_offset, 1967 arp_pattern, arp_mask); 1968 if (ret) { 1969 ath6kl_err("failed to add WOW ARP pattern\n"); 1970 return ret; 1971 } 1972 1973 /* 1974 * Setup multicast pattern for mDNS 224.0.0.251, 1975 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 1976 */ 1977 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1978 vif->fw_vif_idx, WOW_LIST_ID, 1979 sizeof(discvr_pattern), discvr_offset, 1980 discvr_pattern, discvr_mask); 1981 if (ret) { 1982 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 1983 return ret; 1984 } 1985 1986 /* Setup all DHCP broadcast pkt pattern */ 1987 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1988 vif->fw_vif_idx, WOW_LIST_ID, 1989 sizeof(dhcp_pattern), dhcp_offset, 1990 dhcp_pattern, dhcp_mask); 1991 if (ret) { 1992 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 1993 return ret; 1994 } 1995 1996 return 0; 1997} 1998 1999static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2000{ 2001 struct net_device *ndev = vif->ndev; 2002 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2003 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2004 u8 discvr_offset = 38; 2005 u8 mac_mask[ETH_ALEN]; 2006 int ret; 2007 2008 /* Setup unicast pkt pattern */ 2009 memset(mac_mask, 0xff, ETH_ALEN); 2010 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2011 vif->fw_vif_idx, WOW_LIST_ID, 2012 ETH_ALEN, 0, ndev->dev_addr, 2013 mac_mask); 2014 if (ret) { 2015 ath6kl_err("failed to add WOW unicast pattern\n"); 2016 return ret; 2017 } 2018 2019 /* 2020 * Setup multicast pattern for mDNS 224.0.0.251, 2021 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2022 */ 2023 if ((ndev->flags & IFF_ALLMULTI) || 2024 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2025 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2026 vif->fw_vif_idx, WOW_LIST_ID, 2027 sizeof(discvr_pattern), discvr_offset, 2028 discvr_pattern, discvr_mask); 2029 if (ret) { 2030 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2031 return ret; 2032 } 2033 } 2034 2035 return 0; 2036} 2037 2038static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2039{ 2040 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2041} 2042 2043static bool is_ctrl_ep_empty(struct ath6kl *ar) 2044{ 2045 return !ar->tx_pending[ar->ctrl_ep]; 2046} 2047 2048static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2049{ 2050 int ret, left; 2051 2052 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2053 2054 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2055 ATH6KL_HOST_MODE_ASLEEP); 2056 if (ret) 2057 return ret; 2058 2059 left = wait_event_interruptible_timeout(ar->event_wq, 2060 is_hsleep_mode_procsed(vif), 2061 WMI_TIMEOUT); 2062 if (left == 0) { 2063 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2064 ret = -ETIMEDOUT; 2065 } else if (left < 0) { 2066 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2067 left); 2068 ret = left; 2069 } 2070 2071 if (ar->tx_pending[ar->ctrl_ep]) { 2072 left = wait_event_interruptible_timeout(ar->event_wq, 2073 is_ctrl_ep_empty(ar), 2074 WMI_TIMEOUT); 2075 if (left == 0) { 2076 ath6kl_warn("clear wmi ctrl data timeout\n"); 2077 ret = -ETIMEDOUT; 2078 } else if (left < 0) { 2079 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2080 ret = left; 2081 } 2082 } 2083 2084 return ret; 2085} 2086 2087static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2088 struct cfg80211_wowlan *wow, u32 *filter) 2089{ 2090 struct ath6kl *ar = vif->ar; 2091 struct in_device *in_dev; 2092 struct in_ifaddr *ifa; 2093 int ret; 2094 u16 i, bmiss_time; 2095 __be32 ips[MAX_IP_ADDRS]; 2096 u8 index = 0; 2097 2098 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2099 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2100 ar->fw_capabilities)) { 2101 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2102 vif->fw_vif_idx, false); 2103 if (ret) 2104 return ret; 2105 } 2106 2107 /* Clear existing WOW patterns */ 2108 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2109 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2110 WOW_LIST_ID, i); 2111 2112 /* 2113 * Skip the default WOW pattern configuration 2114 * if the driver receives any WOW patterns from 2115 * the user. 2116 */ 2117 if (wow) 2118 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2119 else if (vif->nw_type == AP_NETWORK) 2120 ret = ath6kl_wow_ap(ar, vif); 2121 else 2122 ret = ath6kl_wow_sta(ar, vif); 2123 2124 if (ret) 2125 return ret; 2126 2127 netif_stop_queue(vif->ndev); 2128 2129 if (vif->nw_type != AP_NETWORK) { 2130 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2131 ATH6KL_MAX_WOW_LISTEN_INTL, 2132 0); 2133 if (ret) 2134 return ret; 2135 2136 /* Set listen interval x 15 times as bmiss time */ 2137 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2138 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2139 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2140 2141 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2142 bmiss_time, 0); 2143 if (ret) 2144 return ret; 2145 2146 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2147 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2148 0, 0, 0, 0); 2149 if (ret) 2150 return ret; 2151 } 2152 2153 /* Setup own IP addr for ARP agent. */ 2154 in_dev = __in_dev_get_rtnl(vif->ndev); 2155 if (!in_dev) 2156 return 0; 2157 2158 ifa = in_dev->ifa_list; 2159 memset(&ips, 0, sizeof(ips)); 2160 2161 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2162 while (index < MAX_IP_ADDRS && ifa) { 2163 ips[index] = ifa->ifa_local; 2164 ifa = ifa->ifa_next; 2165 index++; 2166 } 2167 2168 if (ifa) { 2169 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2170 return -EINVAL; 2171 } 2172 2173 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2174 if (ret) { 2175 ath6kl_err("fail to setup ip for arp agent\n"); 2176 return ret; 2177 } 2178 2179 return ret; 2180} 2181 2182static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2183{ 2184 struct ath6kl_vif *first_vif, *vif; 2185 int ret = 0; 2186 u32 filter = 0; 2187 bool connected = false; 2188 2189 /* enter / leave wow suspend on first vif always */ 2190 first_vif = ath6kl_vif_first(ar); 2191 if (WARN_ON(unlikely(!first_vif)) || 2192 !ath6kl_cfg80211_ready(first_vif)) 2193 return -EIO; 2194 2195 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2196 return -EINVAL; 2197 2198 /* install filters for each connected vif */ 2199 spin_lock_bh(&ar->list_lock); 2200 list_for_each_entry(vif, &ar->vif_list, list) { 2201 if (!test_bit(CONNECTED, &vif->flags) || 2202 !ath6kl_cfg80211_ready(vif)) 2203 continue; 2204 connected = true; 2205 2206 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2207 if (ret) 2208 break; 2209 } 2210 spin_unlock_bh(&ar->list_lock); 2211 2212 if (!connected) 2213 return -ENOTCONN; 2214 else if (ret) 2215 return ret; 2216 2217 ar->state = ATH6KL_STATE_SUSPENDING; 2218 2219 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2220 ATH6KL_WOW_MODE_ENABLE, 2221 filter, 2222 WOW_HOST_REQ_DELAY); 2223 if (ret) 2224 return ret; 2225 2226 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2227} 2228 2229static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2230{ 2231 struct ath6kl *ar = vif->ar; 2232 int ret; 2233 2234 if (vif->nw_type != AP_NETWORK) { 2235 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2236 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2237 if (ret) 2238 return ret; 2239 2240 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2241 vif->listen_intvl_t, 0); 2242 if (ret) 2243 return ret; 2244 2245 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2246 vif->bmiss_time_t, 0); 2247 if (ret) 2248 return ret; 2249 } 2250 2251 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2252 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2253 ar->fw_capabilities)) { 2254 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2255 vif->fw_vif_idx, true); 2256 if (ret) 2257 return ret; 2258 } 2259 2260 netif_wake_queue(vif->ndev); 2261 2262 return 0; 2263} 2264 2265static int ath6kl_wow_resume(struct ath6kl *ar) 2266{ 2267 struct ath6kl_vif *vif; 2268 int ret; 2269 2270 vif = ath6kl_vif_first(ar); 2271 if (WARN_ON(unlikely(!vif)) || 2272 !ath6kl_cfg80211_ready(vif)) 2273 return -EIO; 2274 2275 ar->state = ATH6KL_STATE_RESUMING; 2276 2277 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2278 ATH6KL_HOST_MODE_AWAKE); 2279 if (ret) { 2280 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2281 ret); 2282 goto cleanup; 2283 } 2284 2285 spin_lock_bh(&ar->list_lock); 2286 list_for_each_entry(vif, &ar->vif_list, list) { 2287 if (!test_bit(CONNECTED, &vif->flags) || 2288 !ath6kl_cfg80211_ready(vif)) 2289 continue; 2290 ret = ath6kl_wow_resume_vif(vif); 2291 if (ret) 2292 break; 2293 } 2294 spin_unlock_bh(&ar->list_lock); 2295 2296 if (ret) 2297 goto cleanup; 2298 2299 ar->state = ATH6KL_STATE_ON; 2300 return 0; 2301 2302cleanup: 2303 ar->state = ATH6KL_STATE_WOW; 2304 return ret; 2305} 2306 2307static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2308{ 2309 struct ath6kl_vif *vif; 2310 int ret; 2311 2312 vif = ath6kl_vif_first(ar); 2313 if (!vif) 2314 return -EIO; 2315 2316 if (!test_bit(WMI_READY, &ar->flag)) { 2317 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2318 return -EIO; 2319 } 2320 2321 ath6kl_cfg80211_stop_all(ar); 2322 2323 /* Save the current power mode before enabling power save */ 2324 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2325 2326 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2327 if (ret) 2328 return ret; 2329 2330 /* Disable WOW mode */ 2331 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2332 ATH6KL_WOW_MODE_DISABLE, 2333 0, 0); 2334 if (ret) 2335 return ret; 2336 2337 /* Flush all non control pkts in TX path */ 2338 ath6kl_tx_data_cleanup(ar); 2339 2340 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2341 if (ret) 2342 return ret; 2343 2344 return 0; 2345} 2346 2347static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2348{ 2349 struct ath6kl_vif *vif; 2350 int ret; 2351 2352 vif = ath6kl_vif_first(ar); 2353 2354 if (!vif) 2355 return -EIO; 2356 2357 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2358 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2359 ar->wmi->saved_pwr_mode); 2360 if (ret) 2361 return ret; 2362 } 2363 2364 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2365 ATH6KL_HOST_MODE_AWAKE); 2366 if (ret) 2367 return ret; 2368 2369 ar->state = ATH6KL_STATE_ON; 2370 2371 /* Reset scan parameter to default values */ 2372 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2373 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2374 if (ret) 2375 return ret; 2376 2377 return 0; 2378} 2379 2380int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2381 enum ath6kl_cfg_suspend_mode mode, 2382 struct cfg80211_wowlan *wow) 2383{ 2384 struct ath6kl_vif *vif; 2385 enum ath6kl_state prev_state; 2386 int ret; 2387 2388 switch (mode) { 2389 case ATH6KL_CFG_SUSPEND_WOW: 2390 2391 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2392 2393 /* Flush all non control pkts in TX path */ 2394 ath6kl_tx_data_cleanup(ar); 2395 2396 prev_state = ar->state; 2397 2398 ret = ath6kl_wow_suspend(ar, wow); 2399 if (ret) { 2400 ar->state = prev_state; 2401 return ret; 2402 } 2403 2404 ar->state = ATH6KL_STATE_WOW; 2405 break; 2406 2407 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2408 2409 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2410 2411 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2412 if (ret) { 2413 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2414 return ret; 2415 } 2416 2417 ar->state = ATH6KL_STATE_DEEPSLEEP; 2418 2419 break; 2420 2421 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2422 2423 ath6kl_cfg80211_stop_all(ar); 2424 2425 if (ar->state == ATH6KL_STATE_OFF) { 2426 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2427 "suspend hw off, no action for cutpower\n"); 2428 break; 2429 } 2430 2431 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2432 2433 ret = ath6kl_init_hw_stop(ar); 2434 if (ret) { 2435 ath6kl_warn("failed to stop hw during suspend: %d\n", 2436 ret); 2437 } 2438 2439 ar->state = ATH6KL_STATE_CUTPOWER; 2440 2441 break; 2442 2443 default: 2444 break; 2445 } 2446 2447 list_for_each_entry(vif, &ar->vif_list, list) 2448 ath6kl_cfg80211_scan_complete_event(vif, true); 2449 2450 return 0; 2451} 2452EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2453 2454int ath6kl_cfg80211_resume(struct ath6kl *ar) 2455{ 2456 int ret; 2457 2458 switch (ar->state) { 2459 case ATH6KL_STATE_WOW: 2460 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2461 2462 ret = ath6kl_wow_resume(ar); 2463 if (ret) { 2464 ath6kl_warn("wow mode resume failed: %d\n", ret); 2465 return ret; 2466 } 2467 2468 break; 2469 2470 case ATH6KL_STATE_DEEPSLEEP: 2471 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2472 2473 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2474 if (ret) { 2475 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2476 return ret; 2477 } 2478 break; 2479 2480 case ATH6KL_STATE_CUTPOWER: 2481 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2482 2483 ret = ath6kl_init_hw_start(ar); 2484 if (ret) { 2485 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2486 return ret; 2487 } 2488 break; 2489 2490 default: 2491 break; 2492 } 2493 2494 return 0; 2495} 2496EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2497 2498#ifdef CONFIG_PM 2499 2500/* hif layer decides what suspend mode to use */ 2501static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2502 struct cfg80211_wowlan *wow) 2503{ 2504 struct ath6kl *ar = wiphy_priv(wiphy); 2505 2506 ath6kl_recovery_suspend(ar); 2507 2508 return ath6kl_hif_suspend(ar, wow); 2509} 2510 2511static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2512{ 2513 struct ath6kl *ar = wiphy_priv(wiphy); 2514 int err; 2515 2516 err = ath6kl_hif_resume(ar); 2517 if (err) 2518 return err; 2519 2520 ath6kl_recovery_resume(ar); 2521 2522 return 0; 2523} 2524 2525/* 2526 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2527 * both sdio irq wake up and keep power. The target pulls sdio data line to 2528 * wake up the host when WOW pattern matches. This causes sdio irq handler 2529 * is being called in the host side which internally hits ath6kl's RX path. 2530 * 2531 * Since sdio interrupt is not disabled, RX path executes even before 2532 * the host executes the actual resume operation from PM module. 2533 * 2534 * In the current scenario, WOW resume should happen before start processing 2535 * any data from the target. So It's required to perform WOW resume in RX path. 2536 * Ideally we should perform WOW resume only in the actual platform 2537 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2538 * 2539 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2540 */ 2541void ath6kl_check_wow_status(struct ath6kl *ar) 2542{ 2543 if (ar->state == ATH6KL_STATE_SUSPENDING) 2544 return; 2545 2546 if (ar->state == ATH6KL_STATE_WOW) 2547 ath6kl_cfg80211_resume(ar); 2548} 2549 2550#else 2551 2552void ath6kl_check_wow_status(struct ath6kl *ar) 2553{ 2554} 2555#endif 2556 2557static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band, 2558 bool ht_enable) 2559{ 2560 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2561 2562 if (htcap->ht_enable == ht_enable) 2563 return 0; 2564 2565 if (ht_enable) { 2566 /* Set default ht capabilities */ 2567 htcap->ht_enable = true; 2568 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ? 2569 ath6kl_g_htcap : ath6kl_a_htcap; 2570 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2571 } else /* Disable ht */ 2572 memset(htcap, 0, sizeof(*htcap)); 2573 2574 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2575 band, htcap); 2576} 2577 2578static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2579{ 2580 struct wiphy *wiphy = vif->ar->wiphy; 2581 int band, ret = 0; 2582 2583 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 2584 if (!wiphy->bands[band]) 2585 continue; 2586 2587 ret = ath6kl_set_htcap(vif, band, 2588 wiphy->bands[band]->ht_cap.ht_supported); 2589 if (ret) 2590 return ret; 2591 } 2592 2593 return ret; 2594} 2595 2596static bool ath6kl_is_p2p_ie(const u8 *pos) 2597{ 2598 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2599 pos[2] == 0x50 && pos[3] == 0x6f && 2600 pos[4] == 0x9a && pos[5] == 0x09; 2601} 2602 2603static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2604 const u8 *ies, size_t ies_len) 2605{ 2606 struct ath6kl *ar = vif->ar; 2607 const u8 *pos; 2608 u8 *buf = NULL; 2609 size_t len = 0; 2610 int ret; 2611 2612 /* 2613 * Filter out P2P IE(s) since they will be included depending on 2614 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2615 */ 2616 2617 if (ies && ies_len) { 2618 buf = kmalloc(ies_len, GFP_KERNEL); 2619 if (buf == NULL) 2620 return -ENOMEM; 2621 pos = ies; 2622 while (pos + 1 < ies + ies_len) { 2623 if (pos + 2 + pos[1] > ies + ies_len) 2624 break; 2625 if (!ath6kl_is_p2p_ie(pos)) { 2626 memcpy(buf + len, pos, 2 + pos[1]); 2627 len += 2 + pos[1]; 2628 } 2629 pos += 2 + pos[1]; 2630 } 2631 } 2632 2633 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2634 WMI_FRAME_PROBE_RESP, buf, len); 2635 kfree(buf); 2636 return ret; 2637} 2638 2639static int ath6kl_set_ies(struct ath6kl_vif *vif, 2640 struct cfg80211_beacon_data *info) 2641{ 2642 struct ath6kl *ar = vif->ar; 2643 int res; 2644 2645 /* this also clears IE in fw if it's not set */ 2646 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2647 WMI_FRAME_BEACON, 2648 info->beacon_ies, 2649 info->beacon_ies_len); 2650 if (res) 2651 return res; 2652 2653 /* this also clears IE in fw if it's not set */ 2654 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2655 info->proberesp_ies_len); 2656 if (res) 2657 return res; 2658 2659 /* this also clears IE in fw if it's not set */ 2660 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2661 WMI_FRAME_ASSOC_RESP, 2662 info->assocresp_ies, 2663 info->assocresp_ies_len); 2664 if (res) 2665 return res; 2666 2667 return 0; 2668} 2669 2670void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, bool enable) 2671{ 2672 int err; 2673 2674 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 2675 return; 2676 2677 if (vif->nw_type != INFRA_NETWORK) 2678 return; 2679 2680 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 2681 vif->ar->fw_capabilities)) 2682 return; 2683 2684 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 2685 enable ? "enable" : "disable"); 2686 2687 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 2688 vif->fw_vif_idx, enable); 2689 if (err) 2690 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 2691 enable ? "enable" : "disable", err); 2692} 2693 2694static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2695 u8 *rsn_capab) 2696{ 2697 const u8 *rsn_ie; 2698 size_t rsn_ie_len; 2699 u16 cnt; 2700 2701 if (!beacon->tail) 2702 return -EINVAL; 2703 2704 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2705 if (!rsn_ie) 2706 return -EINVAL; 2707 2708 rsn_ie_len = *(rsn_ie + 1); 2709 /* skip element id and length */ 2710 rsn_ie += 2; 2711 2712 /* skip version */ 2713 if (rsn_ie_len < 2) 2714 return -EINVAL; 2715 rsn_ie += 2; 2716 rsn_ie_len -= 2; 2717 2718 /* skip group cipher suite */ 2719 if (rsn_ie_len < 4) 2720 return 0; 2721 rsn_ie += 4; 2722 rsn_ie_len -= 4; 2723 2724 /* skip pairwise cipher suite */ 2725 if (rsn_ie_len < 2) 2726 return 0; 2727 cnt = get_unaligned_le16(rsn_ie); 2728 rsn_ie += (2 + cnt * 4); 2729 rsn_ie_len -= (2 + cnt * 4); 2730 2731 /* skip akm suite */ 2732 if (rsn_ie_len < 2) 2733 return 0; 2734 cnt = get_unaligned_le16(rsn_ie); 2735 rsn_ie += (2 + cnt * 4); 2736 rsn_ie_len -= (2 + cnt * 4); 2737 2738 if (rsn_ie_len < 2) 2739 return 0; 2740 2741 memcpy(rsn_capab, rsn_ie, 2); 2742 2743 return 0; 2744} 2745 2746static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2747 struct cfg80211_ap_settings *info) 2748{ 2749 struct ath6kl *ar = ath6kl_priv(dev); 2750 struct ath6kl_vif *vif = netdev_priv(dev); 2751 struct ieee80211_mgmt *mgmt; 2752 bool hidden = false; 2753 u8 *ies; 2754 int ies_len; 2755 struct wmi_connect_cmd p; 2756 int res; 2757 int i, ret; 2758 u16 rsn_capab = 0; 2759 int inactivity_timeout = 0; 2760 2761 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2762 2763 if (!ath6kl_cfg80211_ready(vif)) 2764 return -EIO; 2765 2766 if (vif->next_mode != AP_NETWORK) 2767 return -EOPNOTSUPP; 2768 2769 res = ath6kl_set_ies(vif, &info->beacon); 2770 2771 ar->ap_mode_bkey.valid = false; 2772 2773 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, 2774 info->beacon_interval); 2775 2776 if (ret) 2777 ath6kl_warn("Failed to set beacon interval: %d\n", ret); 2778 2779 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2780 info->dtim_period); 2781 2782 /* ignore error, just print a warning and continue normally */ 2783 if (ret) 2784 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2785 2786 if (info->beacon.head == NULL) 2787 return -EINVAL; 2788 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2789 ies = mgmt->u.beacon.variable; 2790 if (ies > info->beacon.head + info->beacon.head_len) 2791 return -EINVAL; 2792 ies_len = info->beacon.head + info->beacon.head_len - ies; 2793 2794 if (info->ssid == NULL) 2795 return -EINVAL; 2796 memcpy(vif->ssid, info->ssid, info->ssid_len); 2797 vif->ssid_len = info->ssid_len; 2798 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2799 hidden = true; 2800 2801 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2802 if (res) 2803 return res; 2804 2805 ret = ath6kl_set_auth_type(vif, info->auth_type); 2806 if (ret) 2807 return ret; 2808 2809 memset(&p, 0, sizeof(p)); 2810 2811 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2812 switch (info->crypto.akm_suites[i]) { 2813 case WLAN_AKM_SUITE_8021X: 2814 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2815 p.auth_mode |= WPA_AUTH; 2816 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2817 p.auth_mode |= WPA2_AUTH; 2818 break; 2819 case WLAN_AKM_SUITE_PSK: 2820 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2821 p.auth_mode |= WPA_PSK_AUTH; 2822 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2823 p.auth_mode |= WPA2_PSK_AUTH; 2824 break; 2825 } 2826 } 2827 if (p.auth_mode == 0) 2828 p.auth_mode = NONE_AUTH; 2829 vif->auth_mode = p.auth_mode; 2830 2831 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2832 switch (info->crypto.ciphers_pairwise[i]) { 2833 case WLAN_CIPHER_SUITE_WEP40: 2834 case WLAN_CIPHER_SUITE_WEP104: 2835 p.prwise_crypto_type |= WEP_CRYPT; 2836 break; 2837 case WLAN_CIPHER_SUITE_TKIP: 2838 p.prwise_crypto_type |= TKIP_CRYPT; 2839 break; 2840 case WLAN_CIPHER_SUITE_CCMP: 2841 p.prwise_crypto_type |= AES_CRYPT; 2842 break; 2843 case WLAN_CIPHER_SUITE_SMS4: 2844 p.prwise_crypto_type |= WAPI_CRYPT; 2845 break; 2846 } 2847 } 2848 if (p.prwise_crypto_type == 0) { 2849 p.prwise_crypto_type = NONE_CRYPT; 2850 ath6kl_set_cipher(vif, 0, true); 2851 } else if (info->crypto.n_ciphers_pairwise == 1) 2852 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2853 2854 switch (info->crypto.cipher_group) { 2855 case WLAN_CIPHER_SUITE_WEP40: 2856 case WLAN_CIPHER_SUITE_WEP104: 2857 p.grp_crypto_type = WEP_CRYPT; 2858 break; 2859 case WLAN_CIPHER_SUITE_TKIP: 2860 p.grp_crypto_type = TKIP_CRYPT; 2861 break; 2862 case WLAN_CIPHER_SUITE_CCMP: 2863 p.grp_crypto_type = AES_CRYPT; 2864 break; 2865 case WLAN_CIPHER_SUITE_SMS4: 2866 p.grp_crypto_type = WAPI_CRYPT; 2867 break; 2868 default: 2869 p.grp_crypto_type = NONE_CRYPT; 2870 break; 2871 } 2872 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2873 2874 p.nw_type = AP_NETWORK; 2875 vif->nw_type = vif->next_mode; 2876 2877 p.ssid_len = vif->ssid_len; 2878 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2879 p.dot11_auth_mode = vif->dot11_auth_mode; 2880 p.ch = cpu_to_le16(info->channel->center_freq); 2881 2882 /* Enable uAPSD support by default */ 2883 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2884 if (res < 0) 2885 return res; 2886 2887 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2888 p.nw_subtype = SUBTYPE_P2PGO; 2889 } else { 2890 /* 2891 * Due to firmware limitation, it is not possible to 2892 * do P2P mgmt operations in AP mode 2893 */ 2894 p.nw_subtype = SUBTYPE_NONE; 2895 } 2896 2897 if (info->inactivity_timeout) { 2898 2899 inactivity_timeout = info->inactivity_timeout; 2900 2901 if (ar->hw.flags & ATH6KL_HW_AP_INACTIVITY_MINS) 2902 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2903 60); 2904 2905 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2906 inactivity_timeout); 2907 if (res < 0) 2908 return res; 2909 } 2910 2911 if (ath6kl_set_htcap(vif, info->channel->band, 2912 info->channel_type != NL80211_CHAN_NO_HT)) 2913 return -EIO; 2914 2915 /* 2916 * Get the PTKSA replay counter in the RSN IE. Supplicant 2917 * will use the RSN IE in M3 message and firmware has to 2918 * advertise the same in beacon/probe response. Send 2919 * the complete RSN IE capability field to firmware 2920 */ 2921 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2922 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2923 ar->fw_capabilities)) { 2924 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2925 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2926 (const u8 *) &rsn_capab, 2927 sizeof(rsn_capab)); 2928 vif->rsn_capab = rsn_capab; 2929 if (res < 0) 2930 return res; 2931 } 2932 2933 memcpy(&vif->profile, &p, sizeof(p)); 2934 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2935 if (res < 0) 2936 return res; 2937 2938 return 0; 2939} 2940 2941static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2942 struct cfg80211_beacon_data *beacon) 2943{ 2944 struct ath6kl_vif *vif = netdev_priv(dev); 2945 2946 if (!ath6kl_cfg80211_ready(vif)) 2947 return -EIO; 2948 2949 if (vif->next_mode != AP_NETWORK) 2950 return -EOPNOTSUPP; 2951 2952 return ath6kl_set_ies(vif, beacon); 2953} 2954 2955static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2956{ 2957 struct ath6kl *ar = ath6kl_priv(dev); 2958 struct ath6kl_vif *vif = netdev_priv(dev); 2959 2960 if (vif->nw_type != AP_NETWORK) 2961 return -EOPNOTSUPP; 2962 if (!test_bit(CONNECTED, &vif->flags)) 2963 return -ENOTCONN; 2964 2965 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2966 clear_bit(CONNECTED, &vif->flags); 2967 2968 /* Restore ht setting in firmware */ 2969 return ath6kl_restore_htcap(vif); 2970} 2971 2972static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2973 2974static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2975 u8 *mac) 2976{ 2977 struct ath6kl *ar = ath6kl_priv(dev); 2978 struct ath6kl_vif *vif = netdev_priv(dev); 2979 const u8 *addr = mac ? mac : bcast_addr; 2980 2981 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2982 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2983} 2984 2985static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2986 u8 *mac, struct station_parameters *params) 2987{ 2988 struct ath6kl *ar = ath6kl_priv(dev); 2989 struct ath6kl_vif *vif = netdev_priv(dev); 2990 2991 if (vif->nw_type != AP_NETWORK) 2992 return -EOPNOTSUPP; 2993 2994 /* Use this only for authorizing/unauthorizing a station */ 2995 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 2996 return -EOPNOTSUPP; 2997 2998 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 2999 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3000 WMI_AP_MLME_AUTHORIZE, mac, 0); 3001 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3002 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3003} 3004 3005static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3006 struct wireless_dev *wdev, 3007 struct ieee80211_channel *chan, 3008 enum nl80211_channel_type channel_type, 3009 unsigned int duration, 3010 u64 *cookie) 3011{ 3012 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3013 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3014 u32 id; 3015 3016 /* TODO: if already pending or ongoing remain-on-channel, 3017 * return -EBUSY */ 3018 id = ++vif->last_roc_id; 3019 if (id == 0) { 3020 /* Do not use 0 as the cookie value */ 3021 id = ++vif->last_roc_id; 3022 } 3023 *cookie = id; 3024 3025 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3026 chan->center_freq, duration); 3027} 3028 3029static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3030 struct wireless_dev *wdev, 3031 u64 cookie) 3032{ 3033 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3034 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3035 3036 if (cookie != vif->last_roc_id) 3037 return -ENOENT; 3038 vif->last_cancel_roc_id = cookie; 3039 3040 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3041} 3042 3043static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3044 const u8 *buf, size_t len, 3045 unsigned int freq) 3046{ 3047 struct ath6kl *ar = vif->ar; 3048 const u8 *pos; 3049 u8 *p2p; 3050 int p2p_len; 3051 int ret; 3052 const struct ieee80211_mgmt *mgmt; 3053 3054 mgmt = (const struct ieee80211_mgmt *) buf; 3055 3056 /* Include P2P IE(s) from the frame generated in user space. */ 3057 3058 p2p = kmalloc(len, GFP_KERNEL); 3059 if (p2p == NULL) 3060 return -ENOMEM; 3061 p2p_len = 0; 3062 3063 pos = mgmt->u.probe_resp.variable; 3064 while (pos + 1 < buf + len) { 3065 if (pos + 2 + pos[1] > buf + len) 3066 break; 3067 if (ath6kl_is_p2p_ie(pos)) { 3068 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3069 p2p_len += 2 + pos[1]; 3070 } 3071 pos += 2 + pos[1]; 3072 } 3073 3074 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3075 mgmt->da, p2p, p2p_len); 3076 kfree(p2p); 3077 return ret; 3078} 3079 3080static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3081 u32 id, 3082 u32 freq, 3083 u32 wait, 3084 const u8 *buf, 3085 size_t len, 3086 bool *more_data, 3087 bool no_cck) 3088{ 3089 struct ieee80211_mgmt *mgmt; 3090 struct ath6kl_sta *conn; 3091 bool is_psq_empty = false; 3092 struct ath6kl_mgmt_buff *mgmt_buf; 3093 size_t mgmt_buf_size; 3094 struct ath6kl *ar = vif->ar; 3095 3096 mgmt = (struct ieee80211_mgmt *) buf; 3097 if (is_multicast_ether_addr(mgmt->da)) 3098 return false; 3099 3100 conn = ath6kl_find_sta(vif, mgmt->da); 3101 if (!conn) 3102 return false; 3103 3104 if (conn->sta_flags & STA_PS_SLEEP) { 3105 if (!(conn->sta_flags & STA_PS_POLLED)) { 3106 /* Queue the frames if the STA is sleeping */ 3107 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3108 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3109 if (!mgmt_buf) 3110 return false; 3111 3112 INIT_LIST_HEAD(&mgmt_buf->list); 3113 mgmt_buf->id = id; 3114 mgmt_buf->freq = freq; 3115 mgmt_buf->wait = wait; 3116 mgmt_buf->len = len; 3117 mgmt_buf->no_cck = no_cck; 3118 memcpy(mgmt_buf->buf, buf, len); 3119 spin_lock_bh(&conn->psq_lock); 3120 is_psq_empty = skb_queue_empty(&conn->psq) && 3121 (conn->mgmt_psq_len == 0); 3122 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3123 conn->mgmt_psq_len++; 3124 spin_unlock_bh(&conn->psq_lock); 3125 3126 /* 3127 * If this is the first pkt getting queued 3128 * for this STA, update the PVB for this 3129 * STA. 3130 */ 3131 if (is_psq_empty) 3132 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3133 conn->aid, 1); 3134 return true; 3135 } 3136 3137 /* 3138 * This tx is because of a PsPoll. 3139 * Determine if MoreData bit has to be set. 3140 */ 3141 spin_lock_bh(&conn->psq_lock); 3142 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3143 *more_data = true; 3144 spin_unlock_bh(&conn->psq_lock); 3145 } 3146 3147 return false; 3148} 3149 3150/* Check if SSID length is greater than DIRECT- */ 3151static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3152{ 3153 const struct ieee80211_mgmt *mgmt; 3154 mgmt = (const struct ieee80211_mgmt *) buf; 3155 3156 /* variable[1] contains the SSID tag length */ 3157 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3158 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3159 return true; 3160 } 3161 3162 return false; 3163} 3164 3165static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3166 struct ieee80211_channel *chan, bool offchan, 3167 enum nl80211_channel_type channel_type, 3168 bool channel_type_valid, unsigned int wait, 3169 const u8 *buf, size_t len, bool no_cck, 3170 bool dont_wait_for_ack, u64 *cookie) 3171{ 3172 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3173 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3174 u32 id; 3175 const struct ieee80211_mgmt *mgmt; 3176 bool more_data, queued; 3177 3178 mgmt = (const struct ieee80211_mgmt *) buf; 3179 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3180 ieee80211_is_probe_resp(mgmt->frame_control) && 3181 ath6kl_is_p2p_go_ssid(buf, len)) { 3182 /* 3183 * Send Probe Response frame in GO mode using a separate WMI 3184 * command to allow the target to fill in the generic IEs. 3185 */ 3186 *cookie = 0; /* TX status not supported */ 3187 return ath6kl_send_go_probe_resp(vif, buf, len, 3188 chan->center_freq); 3189 } 3190 3191 id = vif->send_action_id++; 3192 if (id == 0) { 3193 /* 3194 * 0 is a reserved value in the WMI command and shall not be 3195 * used for the command. 3196 */ 3197 id = vif->send_action_id++; 3198 } 3199 3200 *cookie = id; 3201 3202 /* AP mode Power saving processing */ 3203 if (vif->nw_type == AP_NETWORK) { 3204 queued = ath6kl_mgmt_powersave_ap(vif, 3205 id, chan->center_freq, 3206 wait, buf, 3207 len, &more_data, no_cck); 3208 if (queued) 3209 return 0; 3210 } 3211 3212 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, 3213 chan->center_freq, wait, 3214 buf, len, no_cck); 3215} 3216 3217static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3218 struct wireless_dev *wdev, 3219 u16 frame_type, bool reg) 3220{ 3221 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3222 3223 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3224 __func__, frame_type, reg); 3225 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3226 /* 3227 * Note: This notification callback is not allowed to sleep, so 3228 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3229 * hardcode target to report Probe Request frames all the time. 3230 */ 3231 vif->probe_req_report = reg; 3232 } 3233} 3234 3235static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3236 struct net_device *dev, 3237 struct cfg80211_sched_scan_request *request) 3238{ 3239 struct ath6kl *ar = ath6kl_priv(dev); 3240 struct ath6kl_vif *vif = netdev_priv(dev); 3241 u16 interval; 3242 int ret, rssi_thold; 3243 3244 if (ar->state != ATH6KL_STATE_ON) 3245 return -EIO; 3246 3247 if (vif->sme_state != SME_DISCONNECTED) 3248 return -EBUSY; 3249 3250 ath6kl_cfg80211_scan_complete_event(vif, true); 3251 3252 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3253 request->n_ssids, 3254 request->match_sets, 3255 request->n_match_sets); 3256 if (ret < 0) 3257 return ret; 3258 3259 if (!request->n_match_sets) { 3260 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3261 ALL_BSS_FILTER, 0); 3262 if (ret < 0) 3263 return ret; 3264 } else { 3265 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3266 MATCHED_SSID_FILTER, 0); 3267 if (ret < 0) 3268 return ret; 3269 } 3270 3271 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3272 ar->fw_capabilities)) { 3273 if (request->rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3274 rssi_thold = 0; 3275 else if (request->rssi_thold < -127) 3276 rssi_thold = -127; 3277 else 3278 rssi_thold = request->rssi_thold; 3279 3280 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3281 rssi_thold); 3282 if (ret) { 3283 ath6kl_err("failed to set RSSI threshold for scan\n"); 3284 return ret; 3285 } 3286 } 3287 3288 /* fw uses seconds, also make sure that it's >0 */ 3289 interval = max_t(u16, 1, request->interval / 1000); 3290 3291 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3292 interval, interval, 3293 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3294 3295 /* this also clears IE in fw if it's not set */ 3296 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3297 WMI_FRAME_PROBE_REQ, 3298 request->ie, request->ie_len); 3299 if (ret) { 3300 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3301 ret); 3302 return ret; 3303 } 3304 3305 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3306 if (ret) 3307 return ret; 3308 3309 set_bit(SCHED_SCANNING, &vif->flags); 3310 3311 return 0; 3312} 3313 3314static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3315 struct net_device *dev) 3316{ 3317 struct ath6kl_vif *vif = netdev_priv(dev); 3318 bool stopped; 3319 3320 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3321 3322 if (!stopped) 3323 return -EIO; 3324 3325 return 0; 3326} 3327 3328static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3329 struct net_device *dev, 3330 const u8 *addr, 3331 const struct cfg80211_bitrate_mask *mask) 3332{ 3333 struct ath6kl *ar = ath6kl_priv(dev); 3334 struct ath6kl_vif *vif = netdev_priv(dev); 3335 3336 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3337 mask); 3338} 3339 3340static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3341 struct net_device *dev, 3342 u32 rate, u32 pkts, u32 intvl) 3343{ 3344 struct ath6kl *ar = ath6kl_priv(dev); 3345 struct ath6kl_vif *vif = netdev_priv(dev); 3346 3347 if (vif->nw_type != INFRA_NETWORK || 3348 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3349 return -EOPNOTSUPP; 3350 3351 if (vif->sme_state != SME_CONNECTED) 3352 return -ENOTCONN; 3353 3354 /* save this since the firmware won't report the interval */ 3355 vif->txe_intvl = intvl; 3356 3357 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3358 rate, pkts, intvl); 3359} 3360 3361static const struct ieee80211_txrx_stypes 3362ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3363 [NL80211_IFTYPE_STATION] = { 3364 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3365 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3366 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3367 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3368 }, 3369 [NL80211_IFTYPE_AP] = { 3370 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3371 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3372 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3373 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3374 }, 3375 [NL80211_IFTYPE_P2P_CLIENT] = { 3376 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3377 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3378 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3379 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3380 }, 3381 [NL80211_IFTYPE_P2P_GO] = { 3382 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3383 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3384 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3385 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3386 }, 3387}; 3388 3389static struct cfg80211_ops ath6kl_cfg80211_ops = { 3390 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3391 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3392 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3393 .scan = ath6kl_cfg80211_scan, 3394 .connect = ath6kl_cfg80211_connect, 3395 .disconnect = ath6kl_cfg80211_disconnect, 3396 .add_key = ath6kl_cfg80211_add_key, 3397 .get_key = ath6kl_cfg80211_get_key, 3398 .del_key = ath6kl_cfg80211_del_key, 3399 .set_default_key = ath6kl_cfg80211_set_default_key, 3400 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3401 .set_tx_power = ath6kl_cfg80211_set_txpower, 3402 .get_tx_power = ath6kl_cfg80211_get_txpower, 3403 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3404 .join_ibss = ath6kl_cfg80211_join_ibss, 3405 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3406 .get_station = ath6kl_get_station, 3407 .set_pmksa = ath6kl_set_pmksa, 3408 .del_pmksa = ath6kl_del_pmksa, 3409 .flush_pmksa = ath6kl_flush_pmksa, 3410 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3411#ifdef CONFIG_PM 3412 .suspend = __ath6kl_cfg80211_suspend, 3413 .resume = __ath6kl_cfg80211_resume, 3414#endif 3415 .start_ap = ath6kl_start_ap, 3416 .change_beacon = ath6kl_change_beacon, 3417 .stop_ap = ath6kl_stop_ap, 3418 .del_station = ath6kl_del_station, 3419 .change_station = ath6kl_change_station, 3420 .remain_on_channel = ath6kl_remain_on_channel, 3421 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3422 .mgmt_tx = ath6kl_mgmt_tx, 3423 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3424 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3425 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3426 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3427 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3428}; 3429 3430void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3431{ 3432 ath6kl_cfg80211_sscan_disable(vif); 3433 3434 switch (vif->sme_state) { 3435 case SME_DISCONNECTED: 3436 break; 3437 case SME_CONNECTING: 3438 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3439 NULL, 0, 3440 WLAN_STATUS_UNSPECIFIED_FAILURE, 3441 GFP_KERNEL); 3442 break; 3443 case SME_CONNECTED: 3444 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3445 break; 3446 } 3447 3448 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3449 (test_bit(CONNECTED, &vif->flags) || 3450 test_bit(CONNECT_PEND, &vif->flags))) 3451 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3452 3453 vif->sme_state = SME_DISCONNECTED; 3454 clear_bit(CONNECTED, &vif->flags); 3455 clear_bit(CONNECT_PEND, &vif->flags); 3456 3457 /* Stop netdev queues, needed during recovery */ 3458 netif_stop_queue(vif->ndev); 3459 netif_carrier_off(vif->ndev); 3460 3461 /* disable scanning */ 3462 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3463 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3464 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3465 ath6kl_warn("failed to disable scan during stop\n"); 3466 3467 ath6kl_cfg80211_scan_complete_event(vif, true); 3468} 3469 3470void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3471{ 3472 struct ath6kl_vif *vif; 3473 3474 vif = ath6kl_vif_first(ar); 3475 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3476 /* save the current power mode before enabling power save */ 3477 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3478 3479 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3480 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3481 return; 3482 } 3483 3484 /* 3485 * FIXME: we should take ar->list_lock to protect changes in the 3486 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3487 * sleeps. 3488 */ 3489 list_for_each_entry(vif, &ar->vif_list, list) 3490 ath6kl_cfg80211_stop(vif); 3491} 3492 3493static int ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3494 struct regulatory_request *request) 3495{ 3496 struct ath6kl *ar = wiphy_priv(wiphy); 3497 u32 rates[IEEE80211_NUM_BANDS]; 3498 int ret, i; 3499 3500 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3501 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3502 request->alpha2[0], request->alpha2[1], 3503 request->intersect ? " intersect" : "", 3504 request->processed ? " processed" : "", 3505 request->initiator, request->user_reg_hint_type); 3506 3507 /* 3508 * As firmware is not able intersect regdoms, we can only listen to 3509 * cellular hints. 3510 */ 3511 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3512 return -EOPNOTSUPP; 3513 3514 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3515 if (ret) { 3516 ath6kl_err("failed to set regdomain: %d\n", ret); 3517 return ret; 3518 } 3519 3520 /* 3521 * Firmware will apply the regdomain change only after a scan is 3522 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3523 * changed. 3524 */ 3525 3526 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 3527 if (wiphy->bands[i]) 3528 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3529 3530 3531 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3532 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3533 0, NULL, false, rates); 3534 if (ret) { 3535 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3536 ret); 3537 return ret; 3538 } 3539 3540 return 0; 3541} 3542 3543static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3544{ 3545 vif->aggr_cntxt = aggr_init(vif); 3546 if (!vif->aggr_cntxt) { 3547 ath6kl_err("failed to initialize aggr\n"); 3548 return -ENOMEM; 3549 } 3550 3551 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3552 (unsigned long) vif->ndev); 3553 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3554 (unsigned long) vif); 3555 3556 set_bit(WMM_ENABLED, &vif->flags); 3557 spin_lock_init(&vif->if_lock); 3558 3559 INIT_LIST_HEAD(&vif->mc_filter); 3560 3561 return 0; 3562} 3563 3564void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3565{ 3566 struct ath6kl *ar = vif->ar; 3567 struct ath6kl_mc_filter *mc_filter, *tmp; 3568 3569 aggr_module_destroy(vif->aggr_cntxt); 3570 3571 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3572 3573 if (vif->nw_type == ADHOC_NETWORK) 3574 ar->ibss_if_active = false; 3575 3576 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3577 list_del(&mc_filter->list); 3578 kfree(mc_filter); 3579 } 3580 3581 unregister_netdevice(vif->ndev); 3582 3583 ar->num_vif--; 3584} 3585 3586struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3587 enum nl80211_iftype type, 3588 u8 fw_vif_idx, u8 nw_type) 3589{ 3590 struct net_device *ndev; 3591 struct ath6kl_vif *vif; 3592 3593 ndev = alloc_netdev(sizeof(*vif), name, ether_setup); 3594 if (!ndev) 3595 return NULL; 3596 3597 vif = netdev_priv(ndev); 3598 ndev->ieee80211_ptr = &vif->wdev; 3599 vif->wdev.wiphy = ar->wiphy; 3600 vif->ar = ar; 3601 vif->ndev = ndev; 3602 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3603 vif->wdev.netdev = ndev; 3604 vif->wdev.iftype = type; 3605 vif->fw_vif_idx = fw_vif_idx; 3606 vif->nw_type = nw_type; 3607 vif->next_mode = nw_type; 3608 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3609 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3610 vif->bg_scan_period = 0; 3611 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3612 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3613 3614 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3615 if (fw_vif_idx != 0) { 3616 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3617 0x2; 3618 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3619 ar->fw_capabilities)) 3620 ndev->dev_addr[4] ^= 0x80; 3621 } 3622 3623 init_netdev(ndev); 3624 3625 ath6kl_init_control_info(vif); 3626 3627 if (ath6kl_cfg80211_vif_init(vif)) 3628 goto err; 3629 3630 if (register_netdevice(ndev)) 3631 goto err; 3632 3633 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3634 vif->sme_state = SME_DISCONNECTED; 3635 set_bit(WLAN_ENABLED, &vif->flags); 3636 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3637 set_bit(NETDEV_REGISTERED, &vif->flags); 3638 3639 if (type == NL80211_IFTYPE_ADHOC) 3640 ar->ibss_if_active = true; 3641 3642 spin_lock_bh(&ar->list_lock); 3643 list_add_tail(&vif->list, &ar->vif_list); 3644 spin_unlock_bh(&ar->list_lock); 3645 3646 return &vif->wdev; 3647 3648err: 3649 aggr_module_destroy(vif->aggr_cntxt); 3650 free_netdev(ndev); 3651 return NULL; 3652} 3653 3654int ath6kl_cfg80211_init(struct ath6kl *ar) 3655{ 3656 struct wiphy *wiphy = ar->wiphy; 3657 bool band_2gig = false, band_5gig = false, ht = false; 3658 int ret; 3659 3660 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3661 3662 wiphy->max_remain_on_channel_duration = 5000; 3663 3664 /* set device pointer for wiphy */ 3665 set_wiphy_dev(wiphy, ar->dev); 3666 3667 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3668 BIT(NL80211_IFTYPE_ADHOC) | 3669 BIT(NL80211_IFTYPE_AP); 3670 if (ar->p2p) { 3671 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3672 BIT(NL80211_IFTYPE_P2P_CLIENT); 3673 } 3674 3675 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) && 3676 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3677 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3678 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3679 } 3680 3681 /* max num of ssids that can be probed during scanning */ 3682 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3683 3684 /* max num of ssids that can be matched after scan */ 3685 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3686 ar->fw_capabilities)) 3687 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3688 3689 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3690 switch (ar->hw.cap) { 3691 case WMI_11AN_CAP: 3692 ht = true; 3693 case WMI_11A_CAP: 3694 band_5gig = true; 3695 break; 3696 case WMI_11GN_CAP: 3697 ht = true; 3698 case WMI_11G_CAP: 3699 band_2gig = true; 3700 break; 3701 case WMI_11AGN_CAP: 3702 ht = true; 3703 case WMI_11AG_CAP: 3704 band_2gig = true; 3705 band_5gig = true; 3706 break; 3707 default: 3708 ath6kl_err("invalid phy capability!\n"); 3709 return -EINVAL; 3710 } 3711 3712 /* 3713 * Even if the fw has HT support, advertise HT cap only when 3714 * the firmware has support to override RSN capability, otherwise 3715 * 4-way handshake would fail. 3716 */ 3717 if (!(ht && 3718 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3719 ar->fw_capabilities))) { 3720 ath6kl_band_2ghz.ht_cap.cap = 0; 3721 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3722 ath6kl_band_5ghz.ht_cap.cap = 0; 3723 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3724 } 3725 3726 if (ar->hw.flags & ATH6KL_HW_64BIT_RATES) { 3727 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3728 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3729 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3730 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3731 } else { 3732 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3733 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3734 } 3735 3736 if (band_2gig) 3737 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3738 if (band_5gig) 3739 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3740 3741 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3742 3743 wiphy->cipher_suites = cipher_suites; 3744 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3745 3746#ifdef CONFIG_PM 3747 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | 3748 WIPHY_WOWLAN_DISCONNECT | 3749 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3750 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3751 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3752 WIPHY_WOWLAN_4WAY_HANDSHAKE; 3753 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; 3754 wiphy->wowlan.pattern_min_len = 1; 3755 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; 3756#endif 3757 3758 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3759 3760 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3761 WIPHY_FLAG_HAVE_AP_SME | 3762 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3763 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3764 3765 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3766 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3767 3768 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3769 ar->fw_capabilities)) 3770 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3771 3772 ar->wiphy->probe_resp_offload = 3773 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3774 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3775 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3776 3777 ret = wiphy_register(wiphy); 3778 if (ret < 0) { 3779 ath6kl_err("couldn't register wiphy device\n"); 3780 return ret; 3781 } 3782 3783 ar->wiphy_registered = true; 3784 3785 return 0; 3786} 3787 3788void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3789{ 3790 wiphy_unregister(ar->wiphy); 3791 3792 ar->wiphy_registered = false; 3793} 3794 3795struct ath6kl *ath6kl_cfg80211_create(void) 3796{ 3797 struct ath6kl *ar; 3798 struct wiphy *wiphy; 3799 3800 /* create a new wiphy for use with cfg80211 */ 3801 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3802 3803 if (!wiphy) { 3804 ath6kl_err("couldn't allocate wiphy device\n"); 3805 return NULL; 3806 } 3807 3808 ar = wiphy_priv(wiphy); 3809 ar->wiphy = wiphy; 3810 3811 return ar; 3812} 3813 3814/* Note: ar variable must not be accessed after calling this! */ 3815void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3816{ 3817 int i; 3818 3819 for (i = 0; i < AP_MAX_NUM_STA; i++) 3820 kfree(ar->sta_list[i].aggr_conn); 3821 3822 wiphy_free(ar->wiphy); 3823} 3824 3825