cfg80211.c revision 04b2312a683537eec3dbac013920b0e3cfc06123
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 (ar->state != ATH6KL_STATE_SCHED_SCAN) 151 return false; 152 153 del_timer_sync(&vif->sched_scan_timer); 154 155 ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 156 ATH6KL_HOST_MODE_AWAKE); 157 158 ar->state = ATH6KL_STATE_ON; 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 *nw_type = INFRA_NETWORK; 373 break; 374 case NL80211_IFTYPE_ADHOC: 375 *nw_type = ADHOC_NETWORK; 376 break; 377 case NL80211_IFTYPE_AP: 378 *nw_type = AP_NETWORK; 379 break; 380 case NL80211_IFTYPE_P2P_CLIENT: 381 *nw_type = INFRA_NETWORK; 382 break; 383 case NL80211_IFTYPE_P2P_GO: 384 *nw_type = AP_NETWORK; 385 break; 386 default: 387 ath6kl_err("invalid interface type %u\n", type); 388 return -ENOTSUPP; 389 } 390 391 return 0; 392} 393 394static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 395 u8 *if_idx, u8 *nw_type) 396{ 397 int i; 398 399 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 400 return false; 401 402 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 403 ar->num_vif)) 404 return false; 405 406 if (type == NL80211_IFTYPE_STATION || 407 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 408 for (i = 0; i < ar->vif_max; i++) { 409 if ((ar->avail_idx_map >> i) & BIT(0)) { 410 *if_idx = i; 411 return true; 412 } 413 } 414 } 415 416 if (type == NL80211_IFTYPE_P2P_CLIENT || 417 type == NL80211_IFTYPE_P2P_GO) { 418 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 419 if ((ar->avail_idx_map >> i) & BIT(0)) { 420 *if_idx = i; 421 return true; 422 } 423 } 424 } 425 426 return false; 427} 428 429static bool ath6kl_is_tx_pending(struct ath6kl *ar) 430{ 431 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 432} 433 434 435static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 436 struct cfg80211_connect_params *sme) 437{ 438 struct ath6kl *ar = ath6kl_priv(dev); 439 struct ath6kl_vif *vif = netdev_priv(dev); 440 int status; 441 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 442 u16 interval; 443 444 ath6kl_cfg80211_sscan_disable(vif); 445 446 vif->sme_state = SME_CONNECTING; 447 448 if (!ath6kl_cfg80211_ready(vif)) 449 return -EIO; 450 451 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 452 ath6kl_err("destroy in progress\n"); 453 return -EBUSY; 454 } 455 456 if (test_bit(SKIP_SCAN, &ar->flag) && 457 ((sme->channel && sme->channel->center_freq == 0) || 458 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 459 ath6kl_err("SkipScan: channel or bssid invalid\n"); 460 return -EINVAL; 461 } 462 463 if (down_interruptible(&ar->sem)) { 464 ath6kl_err("busy, couldn't get access\n"); 465 return -ERESTARTSYS; 466 } 467 468 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 469 ath6kl_err("busy, destroy in progress\n"); 470 up(&ar->sem); 471 return -EBUSY; 472 } 473 474 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 475 /* 476 * sleep until the command queue drains 477 */ 478 wait_event_interruptible_timeout(ar->event_wq, 479 ath6kl_is_tx_pending(ar), 480 WMI_TIMEOUT); 481 if (signal_pending(current)) { 482 ath6kl_err("cmd queue drain timeout\n"); 483 up(&ar->sem); 484 return -EINTR; 485 } 486 } 487 488 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 489 if (status) { 490 up(&ar->sem); 491 return status; 492 } 493 494 if (sme->ie == NULL || sme->ie_len == 0) 495 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 496 497 if (test_bit(CONNECTED, &vif->flags) && 498 vif->ssid_len == sme->ssid_len && 499 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 500 vif->reconnect_flag = true; 501 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 502 vif->req_bssid, 503 vif->ch_hint); 504 505 up(&ar->sem); 506 if (status) { 507 ath6kl_err("wmi_reconnect_cmd failed\n"); 508 return -EIO; 509 } 510 return 0; 511 } else if (vif->ssid_len == sme->ssid_len && 512 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 513 ath6kl_disconnect(vif); 514 } 515 516 memset(vif->ssid, 0, sizeof(vif->ssid)); 517 vif->ssid_len = sme->ssid_len; 518 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 519 520 if (sme->channel) 521 vif->ch_hint = sme->channel->center_freq; 522 523 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 524 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 525 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 526 527 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 528 529 status = ath6kl_set_auth_type(vif, sme->auth_type); 530 if (status) { 531 up(&ar->sem); 532 return status; 533 } 534 535 if (sme->crypto.n_ciphers_pairwise) 536 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 537 else 538 ath6kl_set_cipher(vif, 0, true); 539 540 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 541 542 if (sme->crypto.n_akm_suites) 543 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 544 545 if ((sme->key_len) && 546 (vif->auth_mode == NONE_AUTH) && 547 (vif->prwise_crypto == WEP_CRYPT)) { 548 struct ath6kl_key *key = NULL; 549 550 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 551 ath6kl_err("key index %d out of bounds\n", 552 sme->key_idx); 553 up(&ar->sem); 554 return -ENOENT; 555 } 556 557 key = &vif->keys[sme->key_idx]; 558 key->key_len = sme->key_len; 559 memcpy(key->key, sme->key, key->key_len); 560 key->cipher = vif->prwise_crypto; 561 vif->def_txkey_index = sme->key_idx; 562 563 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 564 vif->prwise_crypto, 565 GROUP_USAGE | TX_USAGE, 566 key->key_len, 567 NULL, 0, 568 key->key, KEY_OP_INIT_VAL, NULL, 569 NO_SYNC_WMIFLAG); 570 } 571 572 if (!ar->usr_bss_filter) { 573 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 574 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 575 ALL_BSS_FILTER, 0) != 0) { 576 ath6kl_err("couldn't set bss filtering\n"); 577 up(&ar->sem); 578 return -EIO; 579 } 580 } 581 582 vif->nw_type = vif->next_mode; 583 584 /* enable enhanced bmiss detection if applicable */ 585 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 586 587 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 588 nw_subtype = SUBTYPE_P2PCLIENT; 589 590 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 591 "%s: connect called with authmode %d dot11 auth %d" 592 " PW crypto %d PW crypto len %d GRP crypto %d" 593 " GRP crypto len %d channel hint %u\n", 594 __func__, 595 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 596 vif->prwise_crypto_len, vif->grp_crypto, 597 vif->grp_crypto_len, vif->ch_hint); 598 599 vif->reconnect_flag = 0; 600 601 if (vif->nw_type == INFRA_NETWORK) { 602 interval = max_t(u16, vif->listen_intvl_t, 603 ATH6KL_MAX_WOW_LISTEN_INTL); 604 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 605 interval, 606 0); 607 if (status) { 608 ath6kl_err("couldn't set listen intervel\n"); 609 up(&ar->sem); 610 return status; 611 } 612 } 613 614 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 615 vif->dot11_auth_mode, vif->auth_mode, 616 vif->prwise_crypto, 617 vif->prwise_crypto_len, 618 vif->grp_crypto, vif->grp_crypto_len, 619 vif->ssid_len, vif->ssid, 620 vif->req_bssid, vif->ch_hint, 621 ar->connect_ctrl_flags, nw_subtype); 622 623 /* disable background scan if period is 0 */ 624 if (sme->bg_scan_period == 0) 625 sme->bg_scan_period = 0xffff; 626 627 /* configure default value if not specified */ 628 if (sme->bg_scan_period == -1) 629 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 630 631 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 632 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 633 634 up(&ar->sem); 635 636 if (status == -EINVAL) { 637 memset(vif->ssid, 0, sizeof(vif->ssid)); 638 vif->ssid_len = 0; 639 ath6kl_err("invalid request\n"); 640 return -ENOENT; 641 } else if (status) { 642 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 643 return -EIO; 644 } 645 646 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 647 ((vif->auth_mode == WPA_PSK_AUTH) || 648 (vif->auth_mode == WPA2_PSK_AUTH))) { 649 mod_timer(&vif->disconnect_timer, 650 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 651 } 652 653 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 654 set_bit(CONNECT_PEND, &vif->flags); 655 656 return 0; 657} 658 659static struct cfg80211_bss * 660ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 661 enum network_type nw_type, 662 const u8 *bssid, 663 struct ieee80211_channel *chan, 664 const u8 *beacon_ie, 665 size_t beacon_ie_len) 666{ 667 struct ath6kl *ar = vif->ar; 668 struct cfg80211_bss *bss; 669 u16 cap_mask, cap_val; 670 u8 *ie; 671 672 if (nw_type & ADHOC_NETWORK) { 673 cap_mask = WLAN_CAPABILITY_IBSS; 674 cap_val = WLAN_CAPABILITY_IBSS; 675 } else { 676 cap_mask = WLAN_CAPABILITY_ESS; 677 cap_val = WLAN_CAPABILITY_ESS; 678 } 679 680 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 681 vif->ssid, vif->ssid_len, 682 cap_mask, cap_val); 683 if (bss == NULL) { 684 /* 685 * Since cfg80211 may not yet know about the BSS, 686 * generate a partial entry until the first BSS info 687 * event becomes available. 688 * 689 * Prepend SSID element since it is not included in the Beacon 690 * IEs from the target. 691 */ 692 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 693 if (ie == NULL) 694 return NULL; 695 ie[0] = WLAN_EID_SSID; 696 ie[1] = vif->ssid_len; 697 memcpy(ie + 2, vif->ssid, vif->ssid_len); 698 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 699 bss = cfg80211_inform_bss(ar->wiphy, chan, 700 bssid, 0, cap_val, 100, 701 ie, 2 + vif->ssid_len + beacon_ie_len, 702 0, GFP_KERNEL); 703 if (bss) 704 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 705 "added bss %pM to cfg80211\n", bssid); 706 kfree(ie); 707 } else 708 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 709 710 return bss; 711} 712 713void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 714 u8 *bssid, u16 listen_intvl, 715 u16 beacon_intvl, 716 enum network_type nw_type, 717 u8 beacon_ie_len, u8 assoc_req_len, 718 u8 assoc_resp_len, u8 *assoc_info) 719{ 720 struct ieee80211_channel *chan; 721 struct ath6kl *ar = vif->ar; 722 struct cfg80211_bss *bss; 723 724 /* capinfo + listen interval */ 725 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 726 727 /* capinfo + status code + associd */ 728 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 729 730 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 731 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 732 assoc_resp_ie_offset; 733 734 assoc_req_len -= assoc_req_ie_offset; 735 assoc_resp_len -= assoc_resp_ie_offset; 736 737 /* 738 * Store Beacon interval here; DTIM period will be available only once 739 * a Beacon frame from the AP is seen. 740 */ 741 vif->assoc_bss_beacon_int = beacon_intvl; 742 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 743 744 if (nw_type & ADHOC_NETWORK) { 745 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 746 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 747 "%s: ath6k not in ibss mode\n", __func__); 748 return; 749 } 750 } 751 752 if (nw_type & INFRA_NETWORK) { 753 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 754 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 755 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 756 "%s: ath6k not in station mode\n", __func__); 757 return; 758 } 759 } 760 761 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 762 763 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 764 assoc_info, beacon_ie_len); 765 if (!bss) { 766 ath6kl_err("could not add cfg80211 bss entry\n"); 767 return; 768 } 769 770 if (nw_type & ADHOC_NETWORK) { 771 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 772 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 773 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 774 cfg80211_put_bss(bss); 775 return; 776 } 777 778 if (vif->sme_state == SME_CONNECTING) { 779 /* inform connect result to cfg80211 */ 780 vif->sme_state = SME_CONNECTED; 781 cfg80211_connect_result(vif->ndev, bssid, 782 assoc_req_ie, assoc_req_len, 783 assoc_resp_ie, assoc_resp_len, 784 WLAN_STATUS_SUCCESS, GFP_KERNEL); 785 cfg80211_put_bss(bss); 786 } else if (vif->sme_state == SME_CONNECTED) { 787 /* inform roam event to cfg80211 */ 788 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len, 789 assoc_resp_ie, assoc_resp_len, GFP_KERNEL); 790 } 791} 792 793static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 794 struct net_device *dev, u16 reason_code) 795{ 796 struct ath6kl *ar = ath6kl_priv(dev); 797 struct ath6kl_vif *vif = netdev_priv(dev); 798 799 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 800 reason_code); 801 802 ath6kl_cfg80211_sscan_disable(vif); 803 804 if (!ath6kl_cfg80211_ready(vif)) 805 return -EIO; 806 807 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 808 ath6kl_err("busy, destroy in progress\n"); 809 return -EBUSY; 810 } 811 812 if (down_interruptible(&ar->sem)) { 813 ath6kl_err("busy, couldn't get access\n"); 814 return -ERESTARTSYS; 815 } 816 817 vif->reconnect_flag = 0; 818 ath6kl_disconnect(vif); 819 memset(vif->ssid, 0, sizeof(vif->ssid)); 820 vif->ssid_len = 0; 821 822 if (!test_bit(SKIP_SCAN, &ar->flag)) 823 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 824 825 up(&ar->sem); 826 827 vif->sme_state = SME_DISCONNECTED; 828 829 return 0; 830} 831 832void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 833 u8 *bssid, u8 assoc_resp_len, 834 u8 *assoc_info, u16 proto_reason) 835{ 836 struct ath6kl *ar = vif->ar; 837 838 if (vif->scan_req) { 839 cfg80211_scan_done(vif->scan_req, true); 840 vif->scan_req = NULL; 841 } 842 843 if (vif->nw_type & ADHOC_NETWORK) { 844 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 845 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 846 "%s: ath6k not in ibss mode\n", __func__); 847 return; 848 } 849 memset(bssid, 0, ETH_ALEN); 850 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 851 return; 852 } 853 854 if (vif->nw_type & INFRA_NETWORK) { 855 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 856 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 857 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 858 "%s: ath6k not in station mode\n", __func__); 859 return; 860 } 861 } 862 863 clear_bit(CONNECT_PEND, &vif->flags); 864 865 if (vif->sme_state == SME_CONNECTING) { 866 cfg80211_connect_result(vif->ndev, 867 bssid, NULL, 0, 868 NULL, 0, 869 WLAN_STATUS_UNSPECIFIED_FAILURE, 870 GFP_KERNEL); 871 } else if (vif->sme_state == SME_CONNECTED) { 872 cfg80211_disconnected(vif->ndev, proto_reason, 873 NULL, 0, GFP_KERNEL); 874 } 875 876 vif->sme_state = SME_DISCONNECTED; 877 878 /* 879 * Send a disconnect command to target when a disconnect event is 880 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 881 * request from host) to make the firmware stop trying to connect even 882 * after giving disconnect event. There will be one more disconnect 883 * event for this disconnect command with reason code DISCONNECT_CMD 884 * which won't be notified to cfg80211. 885 */ 886 if (reason != DISCONNECT_CMD) 887 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 888} 889 890static int ath6kl_set_probed_ssids(struct ath6kl *ar, 891 struct ath6kl_vif *vif, 892 struct cfg80211_ssid *ssids, int n_ssids, 893 struct cfg80211_match_set *match_set, 894 int n_match_ssid) 895{ 896 u8 i, j, index_to_add, ssid_found = false; 897 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 898 899 memset(ssid_list, 0, sizeof(ssid_list)); 900 901 if (n_ssids > MAX_PROBED_SSIDS || 902 n_match_ssid > MAX_PROBED_SSIDS) 903 return -EINVAL; 904 905 for (i = 0; i < n_ssids; i++) { 906 memcpy(ssid_list[i].ssid.ssid, 907 ssids[i].ssid, 908 ssids[i].ssid_len); 909 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 910 911 if (ssids[i].ssid_len) 912 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 913 else 914 ssid_list[i].flag = ANY_SSID_FLAG; 915 916 if (n_match_ssid == 0) 917 ssid_list[i].flag |= MATCH_SSID_FLAG; 918 } 919 920 index_to_add = i; 921 922 for (i = 0; i < n_match_ssid; i++) { 923 ssid_found = false; 924 925 for (j = 0; j < n_ssids; j++) { 926 if ((match_set[i].ssid.ssid_len == 927 ssid_list[j].ssid.ssid_len) && 928 (!memcmp(ssid_list[j].ssid.ssid, 929 match_set[i].ssid.ssid, 930 match_set[i].ssid.ssid_len))) { 931 ssid_list[j].flag |= MATCH_SSID_FLAG; 932 ssid_found = true; 933 break; 934 } 935 } 936 937 if (ssid_found) 938 continue; 939 940 if (index_to_add >= MAX_PROBED_SSIDS) 941 continue; 942 943 ssid_list[index_to_add].ssid.ssid_len = 944 match_set[i].ssid.ssid_len; 945 memcpy(ssid_list[index_to_add].ssid.ssid, 946 match_set[i].ssid.ssid, 947 match_set[i].ssid.ssid_len); 948 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 949 index_to_add++; 950 } 951 952 for (i = 0; i < index_to_add; i++) { 953 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 954 ssid_list[i].flag, 955 ssid_list[i].ssid.ssid_len, 956 ssid_list[i].ssid.ssid); 957 958 } 959 960 /* Make sure no old entries are left behind */ 961 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 962 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 963 DISABLE_SSID_FLAG, 0, NULL); 964 } 965 966 return 0; 967} 968 969static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 970 struct cfg80211_scan_request *request) 971{ 972 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 973 struct ath6kl *ar = ath6kl_priv(vif->ndev); 974 s8 n_channels = 0; 975 u16 *channels = NULL; 976 int ret = 0; 977 u32 force_fg_scan = 0; 978 979 if (!ath6kl_cfg80211_ready(vif)) 980 return -EIO; 981 982 ath6kl_cfg80211_sscan_disable(vif); 983 984 if (!ar->usr_bss_filter) { 985 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 986 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 987 ALL_BSS_FILTER, 0); 988 if (ret) { 989 ath6kl_err("couldn't set bss filtering\n"); 990 return ret; 991 } 992 } 993 994 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 995 request->n_ssids, NULL, 0); 996 if (ret < 0) 997 return ret; 998 999 /* this also clears IE in fw if it's not set */ 1000 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1001 WMI_FRAME_PROBE_REQ, 1002 request->ie, request->ie_len); 1003 if (ret) { 1004 ath6kl_err("failed to set Probe Request appie for scan\n"); 1005 return ret; 1006 } 1007 1008 /* 1009 * Scan only the requested channels if the request specifies a set of 1010 * channels. If the list is longer than the target supports, do not 1011 * configure the list and instead, scan all available channels. 1012 */ 1013 if (request->n_channels > 0 && 1014 request->n_channels <= WMI_MAX_CHANNELS) { 1015 u8 i; 1016 1017 n_channels = request->n_channels; 1018 1019 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); 1020 if (channels == NULL) { 1021 ath6kl_warn("failed to set scan channels, scan all channels"); 1022 n_channels = 0; 1023 } 1024 1025 for (i = 0; i < n_channels; i++) 1026 channels[i] = request->channels[i]->center_freq; 1027 } 1028 1029 if (test_bit(CONNECTED, &vif->flags)) 1030 force_fg_scan = 1; 1031 1032 vif->scan_req = request; 1033 1034 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1035 ar->fw_capabilities)) { 1036 /* 1037 * If capable of doing P2P mgmt operations using 1038 * station interface, send additional information like 1039 * supported rates to advertise and xmit rates for 1040 * probe requests 1041 */ 1042 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1043 WMI_LONG_SCAN, force_fg_scan, 1044 false, 0, 1045 ATH6KL_FG_SCAN_INTERVAL, 1046 n_channels, channels, 1047 request->no_cck, 1048 request->rates); 1049 } else { 1050 ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx, 1051 WMI_LONG_SCAN, force_fg_scan, 1052 false, 0, 1053 ATH6KL_FG_SCAN_INTERVAL, 1054 n_channels, channels); 1055 } 1056 if (ret) { 1057 ath6kl_err("wmi_startscan_cmd failed\n"); 1058 vif->scan_req = NULL; 1059 } 1060 1061 kfree(channels); 1062 1063 return ret; 1064} 1065 1066void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1067{ 1068 struct ath6kl *ar = vif->ar; 1069 int i; 1070 1071 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1072 aborted ? " aborted" : ""); 1073 1074 if (!vif->scan_req) 1075 return; 1076 1077 if (aborted) 1078 goto out; 1079 1080 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1081 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1082 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1083 i + 1, DISABLE_SSID_FLAG, 1084 0, NULL); 1085 } 1086 } 1087 1088out: 1089 cfg80211_scan_done(vif->scan_req, aborted); 1090 vif->scan_req = NULL; 1091} 1092 1093void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1094 enum wmi_phy_mode mode) 1095{ 1096 enum nl80211_channel_type type; 1097 1098 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1099 "channel switch notify nw_type %d freq %d mode %d\n", 1100 vif->nw_type, freq, mode); 1101 1102 type = (mode == WMI_11G_HT20) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT; 1103 1104 cfg80211_ch_switch_notify(vif->ndev, freq, type); 1105} 1106 1107static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1108 u8 key_index, bool pairwise, 1109 const u8 *mac_addr, 1110 struct key_params *params) 1111{ 1112 struct ath6kl *ar = ath6kl_priv(ndev); 1113 struct ath6kl_vif *vif = netdev_priv(ndev); 1114 struct ath6kl_key *key = NULL; 1115 int seq_len; 1116 u8 key_usage; 1117 u8 key_type; 1118 1119 if (!ath6kl_cfg80211_ready(vif)) 1120 return -EIO; 1121 1122 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1123 if (params->key_len != WMI_KRK_LEN) 1124 return -EINVAL; 1125 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1126 params->key); 1127 } 1128 1129 if (key_index > WMI_MAX_KEY_INDEX) { 1130 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1131 "%s: key index %d out of bounds\n", __func__, 1132 key_index); 1133 return -ENOENT; 1134 } 1135 1136 key = &vif->keys[key_index]; 1137 memset(key, 0, sizeof(struct ath6kl_key)); 1138 1139 if (pairwise) 1140 key_usage = PAIRWISE_USAGE; 1141 else 1142 key_usage = GROUP_USAGE; 1143 1144 seq_len = params->seq_len; 1145 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1146 seq_len > ATH6KL_KEY_SEQ_LEN) { 1147 /* Only first half of the WPI PN is configured */ 1148 seq_len = ATH6KL_KEY_SEQ_LEN; 1149 } 1150 if (params->key_len > WLAN_MAX_KEY_LEN || 1151 seq_len > sizeof(key->seq)) 1152 return -EINVAL; 1153 1154 key->key_len = params->key_len; 1155 memcpy(key->key, params->key, key->key_len); 1156 key->seq_len = seq_len; 1157 memcpy(key->seq, params->seq, key->seq_len); 1158 key->cipher = params->cipher; 1159 1160 switch (key->cipher) { 1161 case WLAN_CIPHER_SUITE_WEP40: 1162 case WLAN_CIPHER_SUITE_WEP104: 1163 key_type = WEP_CRYPT; 1164 break; 1165 1166 case WLAN_CIPHER_SUITE_TKIP: 1167 key_type = TKIP_CRYPT; 1168 break; 1169 1170 case WLAN_CIPHER_SUITE_CCMP: 1171 key_type = AES_CRYPT; 1172 break; 1173 case WLAN_CIPHER_SUITE_SMS4: 1174 key_type = WAPI_CRYPT; 1175 break; 1176 1177 default: 1178 return -ENOTSUPP; 1179 } 1180 1181 if (((vif->auth_mode == WPA_PSK_AUTH) || 1182 (vif->auth_mode == WPA2_PSK_AUTH)) && 1183 (key_usage & GROUP_USAGE)) 1184 del_timer(&vif->disconnect_timer); 1185 1186 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1187 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1188 __func__, key_index, key->key_len, key_type, 1189 key_usage, key->seq_len); 1190 1191 if (vif->nw_type == AP_NETWORK && !pairwise && 1192 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1193 key_type == WAPI_CRYPT)) { 1194 ar->ap_mode_bkey.valid = true; 1195 ar->ap_mode_bkey.key_index = key_index; 1196 ar->ap_mode_bkey.key_type = key_type; 1197 ar->ap_mode_bkey.key_len = key->key_len; 1198 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1199 if (!test_bit(CONNECTED, &vif->flags)) { 1200 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1201 "Delay initial group key configuration until AP mode has been started\n"); 1202 /* 1203 * The key will be set in ath6kl_connect_ap_mode() once 1204 * the connected event is received from the target. 1205 */ 1206 return 0; 1207 } 1208 } 1209 1210 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1211 !test_bit(CONNECTED, &vif->flags)) { 1212 /* 1213 * Store the key locally so that it can be re-configured after 1214 * the AP mode has properly started 1215 * (ath6kl_install_statioc_wep_keys). 1216 */ 1217 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1218 "Delay WEP key configuration until AP mode has been started\n"); 1219 vif->wep_key_list[key_index].key_len = key->key_len; 1220 memcpy(vif->wep_key_list[key_index].key, key->key, 1221 key->key_len); 1222 return 0; 1223 } 1224 1225 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1226 key_type, key_usage, key->key_len, 1227 key->seq, key->seq_len, key->key, 1228 KEY_OP_INIT_VAL, 1229 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1230} 1231 1232static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1233 u8 key_index, bool pairwise, 1234 const u8 *mac_addr) 1235{ 1236 struct ath6kl *ar = ath6kl_priv(ndev); 1237 struct ath6kl_vif *vif = netdev_priv(ndev); 1238 1239 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1240 1241 if (!ath6kl_cfg80211_ready(vif)) 1242 return -EIO; 1243 1244 if (key_index > WMI_MAX_KEY_INDEX) { 1245 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1246 "%s: key index %d out of bounds\n", __func__, 1247 key_index); 1248 return -ENOENT; 1249 } 1250 1251 if (!vif->keys[key_index].key_len) { 1252 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1253 "%s: index %d is empty\n", __func__, key_index); 1254 return 0; 1255 } 1256 1257 vif->keys[key_index].key_len = 0; 1258 1259 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1260} 1261 1262static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1263 u8 key_index, bool pairwise, 1264 const u8 *mac_addr, void *cookie, 1265 void (*callback) (void *cookie, 1266 struct key_params *)) 1267{ 1268 struct ath6kl_vif *vif = netdev_priv(ndev); 1269 struct ath6kl_key *key = NULL; 1270 struct key_params params; 1271 1272 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1273 1274 if (!ath6kl_cfg80211_ready(vif)) 1275 return -EIO; 1276 1277 if (key_index > WMI_MAX_KEY_INDEX) { 1278 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1279 "%s: key index %d out of bounds\n", __func__, 1280 key_index); 1281 return -ENOENT; 1282 } 1283 1284 key = &vif->keys[key_index]; 1285 memset(¶ms, 0, sizeof(params)); 1286 params.cipher = key->cipher; 1287 params.key_len = key->key_len; 1288 params.seq_len = key->seq_len; 1289 params.seq = key->seq; 1290 params.key = key->key; 1291 1292 callback(cookie, ¶ms); 1293 1294 return key->key_len ? 0 : -ENOENT; 1295} 1296 1297static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1298 struct net_device *ndev, 1299 u8 key_index, bool unicast, 1300 bool multicast) 1301{ 1302 struct ath6kl *ar = ath6kl_priv(ndev); 1303 struct ath6kl_vif *vif = netdev_priv(ndev); 1304 struct ath6kl_key *key = NULL; 1305 u8 key_usage; 1306 enum crypto_type key_type = NONE_CRYPT; 1307 1308 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1309 1310 if (!ath6kl_cfg80211_ready(vif)) 1311 return -EIO; 1312 1313 if (key_index > WMI_MAX_KEY_INDEX) { 1314 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1315 "%s: key index %d out of bounds\n", 1316 __func__, key_index); 1317 return -ENOENT; 1318 } 1319 1320 if (!vif->keys[key_index].key_len) { 1321 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1322 __func__, key_index); 1323 return -EINVAL; 1324 } 1325 1326 vif->def_txkey_index = key_index; 1327 key = &vif->keys[vif->def_txkey_index]; 1328 key_usage = GROUP_USAGE; 1329 if (vif->prwise_crypto == WEP_CRYPT) 1330 key_usage |= TX_USAGE; 1331 if (unicast) 1332 key_type = vif->prwise_crypto; 1333 if (multicast) 1334 key_type = vif->grp_crypto; 1335 1336 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1337 return 0; /* Delay until AP mode has been started */ 1338 1339 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1340 vif->def_txkey_index, 1341 key_type, key_usage, 1342 key->key_len, key->seq, key->seq_len, 1343 key->key, 1344 KEY_OP_INIT_VAL, NULL, 1345 SYNC_BOTH_WMIFLAG); 1346} 1347 1348void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1349 bool ismcast) 1350{ 1351 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1352 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1353 1354 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1355 (ismcast ? NL80211_KEYTYPE_GROUP : 1356 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1357 GFP_KERNEL); 1358} 1359 1360static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1361{ 1362 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1363 struct ath6kl_vif *vif; 1364 int ret; 1365 1366 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1367 changed); 1368 1369 vif = ath6kl_vif_first(ar); 1370 if (!vif) 1371 return -EIO; 1372 1373 if (!ath6kl_cfg80211_ready(vif)) 1374 return -EIO; 1375 1376 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1377 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1378 if (ret != 0) { 1379 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1380 return -EIO; 1381 } 1382 } 1383 1384 return 0; 1385} 1386 1387/* 1388 * The type nl80211_tx_power_setting replaces the following 1389 * data type from 2.6.36 onwards 1390*/ 1391static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1392 enum nl80211_tx_power_setting type, 1393 int mbm) 1394{ 1395 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1396 struct ath6kl_vif *vif; 1397 int dbm = MBM_TO_DBM(mbm); 1398 1399 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1400 type, dbm); 1401 1402 vif = ath6kl_vif_first(ar); 1403 if (!vif) 1404 return -EIO; 1405 1406 if (!ath6kl_cfg80211_ready(vif)) 1407 return -EIO; 1408 1409 switch (type) { 1410 case NL80211_TX_POWER_AUTOMATIC: 1411 return 0; 1412 case NL80211_TX_POWER_LIMITED: 1413 ar->tx_pwr = dbm; 1414 break; 1415 default: 1416 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1417 __func__, type); 1418 return -EOPNOTSUPP; 1419 } 1420 1421 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1422 1423 return 0; 1424} 1425 1426static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) 1427{ 1428 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1429 struct ath6kl_vif *vif; 1430 1431 vif = ath6kl_vif_first(ar); 1432 if (!vif) 1433 return -EIO; 1434 1435 if (!ath6kl_cfg80211_ready(vif)) 1436 return -EIO; 1437 1438 if (test_bit(CONNECTED, &vif->flags)) { 1439 ar->tx_pwr = 0; 1440 1441 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1442 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1443 return -EIO; 1444 } 1445 1446 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, 1447 5 * HZ); 1448 1449 if (signal_pending(current)) { 1450 ath6kl_err("target did not respond\n"); 1451 return -EINTR; 1452 } 1453 } 1454 1455 *dbm = ar->tx_pwr; 1456 return 0; 1457} 1458 1459static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1460 struct net_device *dev, 1461 bool pmgmt, int timeout) 1462{ 1463 struct ath6kl *ar = ath6kl_priv(dev); 1464 struct wmi_power_mode_cmd mode; 1465 struct ath6kl_vif *vif = netdev_priv(dev); 1466 1467 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1468 __func__, pmgmt, timeout); 1469 1470 if (!ath6kl_cfg80211_ready(vif)) 1471 return -EIO; 1472 1473 if (pmgmt) { 1474 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1475 mode.pwr_mode = REC_POWER; 1476 } else { 1477 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1478 mode.pwr_mode = MAX_PERF_POWER; 1479 } 1480 1481 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1482 mode.pwr_mode) != 0) { 1483 ath6kl_err("wmi_powermode_cmd failed\n"); 1484 return -EIO; 1485 } 1486 1487 return 0; 1488} 1489 1490static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1491 const char *name, 1492 enum nl80211_iftype type, 1493 u32 *flags, 1494 struct vif_params *params) 1495{ 1496 struct ath6kl *ar = wiphy_priv(wiphy); 1497 struct wireless_dev *wdev; 1498 u8 if_idx, nw_type; 1499 1500 if (ar->num_vif == ar->vif_max) { 1501 ath6kl_err("Reached maximum number of supported vif\n"); 1502 return ERR_PTR(-EINVAL); 1503 } 1504 1505 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1506 ath6kl_err("Not a supported interface type\n"); 1507 return ERR_PTR(-EINVAL); 1508 } 1509 1510 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); 1511 if (!wdev) 1512 return ERR_PTR(-ENOMEM); 1513 1514 ar->num_vif++; 1515 1516 return wdev; 1517} 1518 1519static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1520 struct wireless_dev *wdev) 1521{ 1522 struct ath6kl *ar = wiphy_priv(wiphy); 1523 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1524 1525 spin_lock_bh(&ar->list_lock); 1526 list_del(&vif->list); 1527 spin_unlock_bh(&ar->list_lock); 1528 1529 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); 1530 1531 ath6kl_cfg80211_vif_cleanup(vif); 1532 1533 return 0; 1534} 1535 1536static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1537 struct net_device *ndev, 1538 enum nl80211_iftype type, u32 *flags, 1539 struct vif_params *params) 1540{ 1541 struct ath6kl_vif *vif = netdev_priv(ndev); 1542 int i; 1543 1544 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1545 1546 /* 1547 * Don't bring up p2p on an interface which is not initialized 1548 * for p2p operation where fw does not have capability to switch 1549 * dynamically between non-p2p and p2p type interface. 1550 */ 1551 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1552 vif->ar->fw_capabilities) && 1553 (type == NL80211_IFTYPE_P2P_CLIENT || 1554 type == NL80211_IFTYPE_P2P_GO)) { 1555 if (vif->ar->vif_max == 1) { 1556 if (vif->fw_vif_idx != 0) 1557 return -EINVAL; 1558 else 1559 goto set_iface_type; 1560 } 1561 1562 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1563 if (i == vif->fw_vif_idx) 1564 break; 1565 } 1566 1567 if (i == vif->ar->vif_max) { 1568 ath6kl_err("Invalid interface to bring up P2P\n"); 1569 return -EINVAL; 1570 } 1571 } 1572 1573 /* need to clean up enhanced bmiss detection fw state */ 1574 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1575 1576set_iface_type: 1577 switch (type) { 1578 case NL80211_IFTYPE_STATION: 1579 vif->next_mode = INFRA_NETWORK; 1580 break; 1581 case NL80211_IFTYPE_ADHOC: 1582 vif->next_mode = ADHOC_NETWORK; 1583 break; 1584 case NL80211_IFTYPE_AP: 1585 vif->next_mode = AP_NETWORK; 1586 break; 1587 case NL80211_IFTYPE_P2P_CLIENT: 1588 vif->next_mode = INFRA_NETWORK; 1589 break; 1590 case NL80211_IFTYPE_P2P_GO: 1591 vif->next_mode = AP_NETWORK; 1592 break; 1593 default: 1594 ath6kl_err("invalid interface type %u\n", type); 1595 return -EOPNOTSUPP; 1596 } 1597 1598 vif->wdev.iftype = type; 1599 1600 return 0; 1601} 1602 1603static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1604 struct net_device *dev, 1605 struct cfg80211_ibss_params *ibss_param) 1606{ 1607 struct ath6kl *ar = ath6kl_priv(dev); 1608 struct ath6kl_vif *vif = netdev_priv(dev); 1609 int status; 1610 1611 if (!ath6kl_cfg80211_ready(vif)) 1612 return -EIO; 1613 1614 vif->ssid_len = ibss_param->ssid_len; 1615 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1616 1617 if (ibss_param->channel) 1618 vif->ch_hint = ibss_param->channel->center_freq; 1619 1620 if (ibss_param->channel_fixed) { 1621 /* 1622 * TODO: channel_fixed: The channel should be fixed, do not 1623 * search for IBSSs to join on other channels. Target 1624 * firmware does not support this feature, needs to be 1625 * updated. 1626 */ 1627 return -EOPNOTSUPP; 1628 } 1629 1630 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1631 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1632 memcpy(vif->req_bssid, ibss_param->bssid, 1633 sizeof(vif->req_bssid)); 1634 1635 ath6kl_set_wpa_version(vif, 0); 1636 1637 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1638 if (status) 1639 return status; 1640 1641 if (ibss_param->privacy) { 1642 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1643 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1644 } else { 1645 ath6kl_set_cipher(vif, 0, true); 1646 ath6kl_set_cipher(vif, 0, false); 1647 } 1648 1649 vif->nw_type = vif->next_mode; 1650 1651 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1652 "%s: connect called with authmode %d dot11 auth %d" 1653 " PW crypto %d PW crypto len %d GRP crypto %d" 1654 " GRP crypto len %d channel hint %u\n", 1655 __func__, 1656 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1657 vif->prwise_crypto_len, vif->grp_crypto, 1658 vif->grp_crypto_len, vif->ch_hint); 1659 1660 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1661 vif->dot11_auth_mode, vif->auth_mode, 1662 vif->prwise_crypto, 1663 vif->prwise_crypto_len, 1664 vif->grp_crypto, vif->grp_crypto_len, 1665 vif->ssid_len, vif->ssid, 1666 vif->req_bssid, vif->ch_hint, 1667 ar->connect_ctrl_flags, SUBTYPE_NONE); 1668 set_bit(CONNECT_PEND, &vif->flags); 1669 1670 return 0; 1671} 1672 1673static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1674 struct net_device *dev) 1675{ 1676 struct ath6kl_vif *vif = netdev_priv(dev); 1677 1678 if (!ath6kl_cfg80211_ready(vif)) 1679 return -EIO; 1680 1681 ath6kl_disconnect(vif); 1682 memset(vif->ssid, 0, sizeof(vif->ssid)); 1683 vif->ssid_len = 0; 1684 1685 return 0; 1686} 1687 1688static const u32 cipher_suites[] = { 1689 WLAN_CIPHER_SUITE_WEP40, 1690 WLAN_CIPHER_SUITE_WEP104, 1691 WLAN_CIPHER_SUITE_TKIP, 1692 WLAN_CIPHER_SUITE_CCMP, 1693 CCKM_KRK_CIPHER_SUITE, 1694 WLAN_CIPHER_SUITE_SMS4, 1695}; 1696 1697static bool is_rate_legacy(s32 rate) 1698{ 1699 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1700 6000, 9000, 12000, 18000, 24000, 1701 36000, 48000, 54000 1702 }; 1703 u8 i; 1704 1705 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1706 if (rate == legacy[i]) 1707 return true; 1708 1709 return false; 1710} 1711 1712static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1713{ 1714 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1715 52000, 58500, 65000, 72200 1716 }; 1717 u8 i; 1718 1719 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1720 if (rate == ht20[i]) { 1721 if (i == ARRAY_SIZE(ht20) - 1) 1722 /* last rate uses sgi */ 1723 *sgi = true; 1724 else 1725 *sgi = false; 1726 1727 *mcs = i; 1728 return true; 1729 } 1730 } 1731 return false; 1732} 1733 1734static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1735{ 1736 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1737 81000, 108000, 121500, 135000, 1738 150000 1739 }; 1740 u8 i; 1741 1742 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1743 if (rate == ht40[i]) { 1744 if (i == ARRAY_SIZE(ht40) - 1) 1745 /* last rate uses sgi */ 1746 *sgi = true; 1747 else 1748 *sgi = false; 1749 1750 *mcs = i; 1751 return true; 1752 } 1753 } 1754 1755 return false; 1756} 1757 1758static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1759 u8 *mac, struct station_info *sinfo) 1760{ 1761 struct ath6kl *ar = ath6kl_priv(dev); 1762 struct ath6kl_vif *vif = netdev_priv(dev); 1763 long left; 1764 bool sgi; 1765 s32 rate; 1766 int ret; 1767 u8 mcs; 1768 1769 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1770 return -ENOENT; 1771 1772 if (down_interruptible(&ar->sem)) 1773 return -EBUSY; 1774 1775 set_bit(STATS_UPDATE_PEND, &vif->flags); 1776 1777 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1778 1779 if (ret != 0) { 1780 up(&ar->sem); 1781 return -EIO; 1782 } 1783 1784 left = wait_event_interruptible_timeout(ar->event_wq, 1785 !test_bit(STATS_UPDATE_PEND, 1786 &vif->flags), 1787 WMI_TIMEOUT); 1788 1789 up(&ar->sem); 1790 1791 if (left == 0) 1792 return -ETIMEDOUT; 1793 else if (left < 0) 1794 return left; 1795 1796 if (vif->target_stats.rx_byte) { 1797 sinfo->rx_bytes = vif->target_stats.rx_byte; 1798 sinfo->filled |= STATION_INFO_RX_BYTES; 1799 sinfo->rx_packets = vif->target_stats.rx_pkt; 1800 sinfo->filled |= STATION_INFO_RX_PACKETS; 1801 } 1802 1803 if (vif->target_stats.tx_byte) { 1804 sinfo->tx_bytes = vif->target_stats.tx_byte; 1805 sinfo->filled |= STATION_INFO_TX_BYTES; 1806 sinfo->tx_packets = vif->target_stats.tx_pkt; 1807 sinfo->filled |= STATION_INFO_TX_PACKETS; 1808 } 1809 1810 sinfo->signal = vif->target_stats.cs_rssi; 1811 sinfo->filled |= STATION_INFO_SIGNAL; 1812 1813 rate = vif->target_stats.tx_ucast_rate; 1814 1815 if (is_rate_legacy(rate)) { 1816 sinfo->txrate.legacy = rate / 100; 1817 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1818 if (sgi) { 1819 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1820 sinfo->txrate.mcs = mcs - 1; 1821 } else { 1822 sinfo->txrate.mcs = mcs; 1823 } 1824 1825 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1826 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1827 if (sgi) { 1828 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1829 sinfo->txrate.mcs = mcs - 1; 1830 } else { 1831 sinfo->txrate.mcs = mcs; 1832 } 1833 1834 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 1835 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1836 } else { 1837 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1838 "invalid rate from stats: %d\n", rate); 1839 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1840 return 0; 1841 } 1842 1843 sinfo->filled |= STATION_INFO_TX_BITRATE; 1844 1845 if (test_bit(CONNECTED, &vif->flags) && 1846 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1847 vif->nw_type == INFRA_NETWORK) { 1848 sinfo->filled |= STATION_INFO_BSS_PARAM; 1849 sinfo->bss_param.flags = 0; 1850 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1851 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1852 } 1853 1854 return 0; 1855} 1856 1857static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1858 struct cfg80211_pmksa *pmksa) 1859{ 1860 struct ath6kl *ar = ath6kl_priv(netdev); 1861 struct ath6kl_vif *vif = netdev_priv(netdev); 1862 1863 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1864 pmksa->pmkid, true); 1865} 1866 1867static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1868 struct cfg80211_pmksa *pmksa) 1869{ 1870 struct ath6kl *ar = ath6kl_priv(netdev); 1871 struct ath6kl_vif *vif = netdev_priv(netdev); 1872 1873 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1874 pmksa->pmkid, false); 1875} 1876 1877static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1878{ 1879 struct ath6kl *ar = ath6kl_priv(netdev); 1880 struct ath6kl_vif *vif = netdev_priv(netdev); 1881 1882 if (test_bit(CONNECTED, &vif->flags)) 1883 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1884 vif->bssid, NULL, false); 1885 return 0; 1886} 1887 1888static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1889 struct cfg80211_wowlan *wow, u32 *filter) 1890{ 1891 int ret, pos; 1892 u8 mask[WOW_MASK_SIZE]; 1893 u16 i; 1894 1895 /* Configure the patterns that we received from the user. */ 1896 for (i = 0; i < wow->n_patterns; i++) { 1897 1898 /* 1899 * Convert given nl80211 specific mask value to equivalent 1900 * driver specific mask value and send it to the chip along 1901 * with patterns. For example, If the mask value defined in 1902 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1903 * then equivalent driver specific mask value is 1904 * "0xFF 0x00 0xFF 0x00". 1905 */ 1906 memset(&mask, 0, sizeof(mask)); 1907 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1908 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1909 mask[pos] = 0xFF; 1910 } 1911 /* 1912 * Note: Pattern's offset is not passed as part of wowlan 1913 * parameter from CFG layer. So it's always passed as ZERO 1914 * to the firmware. It means, given WOW patterns are always 1915 * matched from the first byte of received pkt in the firmware. 1916 */ 1917 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1918 vif->fw_vif_idx, WOW_LIST_ID, 1919 wow->patterns[i].pattern_len, 1920 0 /* pattern offset */, 1921 wow->patterns[i].pattern, mask); 1922 if (ret) 1923 return ret; 1924 } 1925 1926 if (wow->disconnect) 1927 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1928 1929 if (wow->magic_pkt) 1930 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1931 1932 if (wow->gtk_rekey_failure) 1933 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1934 1935 if (wow->eap_identity_req) 1936 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1937 1938 if (wow->four_way_handshake) 1939 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1940 1941 return 0; 1942} 1943 1944static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1945{ 1946 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1947 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1948 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1949 0x00, 0x08 }; 1950 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1951 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1952 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1953 0x00, 0x7f }; 1954 u8 unicst_offset = 0; 1955 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1956 static const u8 arp_mask[] = { 0xff, 0xff }; 1957 u8 arp_offset = 20; 1958 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1959 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1960 u8 discvr_offset = 38; 1961 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1962 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1963 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1964 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1965 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1966 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1967 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1968 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1970 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1971 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1972 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1973 u8 dhcp_offset = 0; 1974 int ret; 1975 1976 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1977 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1978 vif->fw_vif_idx, WOW_LIST_ID, 1979 sizeof(unicst_pattern), unicst_offset, 1980 unicst_pattern, unicst_mask); 1981 if (ret) { 1982 ath6kl_err("failed to add WOW unicast IP pattern\n"); 1983 return ret; 1984 } 1985 1986 /* Setup all ARP pkt pattern */ 1987 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1988 vif->fw_vif_idx, WOW_LIST_ID, 1989 sizeof(arp_pattern), arp_offset, 1990 arp_pattern, arp_mask); 1991 if (ret) { 1992 ath6kl_err("failed to add WOW ARP pattern\n"); 1993 return ret; 1994 } 1995 1996 /* 1997 * Setup multicast pattern for mDNS 224.0.0.251, 1998 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 1999 */ 2000 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2001 vif->fw_vif_idx, WOW_LIST_ID, 2002 sizeof(discvr_pattern), discvr_offset, 2003 discvr_pattern, discvr_mask); 2004 if (ret) { 2005 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2006 return ret; 2007 } 2008 2009 /* Setup all DHCP broadcast pkt pattern */ 2010 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2011 vif->fw_vif_idx, WOW_LIST_ID, 2012 sizeof(dhcp_pattern), dhcp_offset, 2013 dhcp_pattern, dhcp_mask); 2014 if (ret) { 2015 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 2016 return ret; 2017 } 2018 2019 return 0; 2020} 2021 2022static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2023{ 2024 struct net_device *ndev = vif->ndev; 2025 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2026 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2027 u8 discvr_offset = 38; 2028 u8 mac_mask[ETH_ALEN]; 2029 int ret; 2030 2031 /* Setup unicast pkt pattern */ 2032 memset(mac_mask, 0xff, ETH_ALEN); 2033 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2034 vif->fw_vif_idx, WOW_LIST_ID, 2035 ETH_ALEN, 0, ndev->dev_addr, 2036 mac_mask); 2037 if (ret) { 2038 ath6kl_err("failed to add WOW unicast pattern\n"); 2039 return ret; 2040 } 2041 2042 /* 2043 * Setup multicast pattern for mDNS 224.0.0.251, 2044 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2045 */ 2046 if ((ndev->flags & IFF_ALLMULTI) || 2047 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2048 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2049 vif->fw_vif_idx, WOW_LIST_ID, 2050 sizeof(discvr_pattern), discvr_offset, 2051 discvr_pattern, discvr_mask); 2052 if (ret) { 2053 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2054 return ret; 2055 } 2056 } 2057 2058 return 0; 2059} 2060 2061static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2062{ 2063 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2064} 2065 2066static bool is_ctrl_ep_empty(struct ath6kl *ar) 2067{ 2068 return !ar->tx_pending[ar->ctrl_ep]; 2069} 2070 2071static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2072{ 2073 int ret, left; 2074 2075 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2076 2077 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2078 ATH6KL_HOST_MODE_ASLEEP); 2079 if (ret) 2080 return ret; 2081 2082 left = wait_event_interruptible_timeout(ar->event_wq, 2083 is_hsleep_mode_procsed(vif), 2084 WMI_TIMEOUT); 2085 if (left == 0) { 2086 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2087 ret = -ETIMEDOUT; 2088 } else if (left < 0) { 2089 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2090 left); 2091 ret = left; 2092 } 2093 2094 if (ar->tx_pending[ar->ctrl_ep]) { 2095 left = wait_event_interruptible_timeout(ar->event_wq, 2096 is_ctrl_ep_empty(ar), 2097 WMI_TIMEOUT); 2098 if (left == 0) { 2099 ath6kl_warn("clear wmi ctrl data timeout\n"); 2100 ret = -ETIMEDOUT; 2101 } else if (left < 0) { 2102 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2103 ret = left; 2104 } 2105 } 2106 2107 return ret; 2108} 2109 2110static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2111{ 2112 struct in_device *in_dev; 2113 struct in_ifaddr *ifa; 2114 struct ath6kl_vif *vif; 2115 int ret; 2116 u32 filter = 0; 2117 u16 i, bmiss_time; 2118 u8 index = 0; 2119 __be32 ips[MAX_IP_ADDRS]; 2120 2121 /* The FW currently can't support multi-vif WoW properly. */ 2122 if (ar->num_vif > 1) 2123 return -EIO; 2124 2125 vif = ath6kl_vif_first(ar); 2126 if (!vif) 2127 return -EIO; 2128 2129 if (!ath6kl_cfg80211_ready(vif)) 2130 return -EIO; 2131 2132 if (!test_bit(CONNECTED, &vif->flags)) 2133 return -ENOTCONN; 2134 2135 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2136 return -EINVAL; 2137 2138 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2139 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2140 ar->fw_capabilities)) { 2141 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2142 vif->fw_vif_idx, false); 2143 if (ret) 2144 return ret; 2145 } 2146 2147 /* Clear existing WOW patterns */ 2148 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2149 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2150 WOW_LIST_ID, i); 2151 2152 /* 2153 * Skip the default WOW pattern configuration 2154 * if the driver receives any WOW patterns from 2155 * the user. 2156 */ 2157 if (wow) 2158 ret = ath6kl_wow_usr(ar, vif, wow, &filter); 2159 else if (vif->nw_type == AP_NETWORK) 2160 ret = ath6kl_wow_ap(ar, vif); 2161 else 2162 ret = ath6kl_wow_sta(ar, vif); 2163 2164 if (ret) 2165 return ret; 2166 2167 netif_stop_queue(vif->ndev); 2168 2169 if (vif->nw_type != AP_NETWORK) { 2170 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2171 ATH6KL_MAX_WOW_LISTEN_INTL, 2172 0); 2173 if (ret) 2174 return ret; 2175 2176 /* Set listen interval x 15 times as bmiss time */ 2177 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2178 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2179 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2180 2181 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2182 bmiss_time, 0); 2183 if (ret) 2184 return ret; 2185 2186 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2187 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2188 0, 0, 0, 0); 2189 if (ret) 2190 return ret; 2191 } 2192 2193 ar->state = ATH6KL_STATE_SUSPENDING; 2194 2195 /* Setup own IP addr for ARP agent. */ 2196 in_dev = __in_dev_get_rtnl(vif->ndev); 2197 if (!in_dev) 2198 goto skip_arp; 2199 2200 ifa = in_dev->ifa_list; 2201 memset(&ips, 0, sizeof(ips)); 2202 2203 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2204 while (index < MAX_IP_ADDRS && ifa) { 2205 ips[index] = ifa->ifa_local; 2206 ifa = ifa->ifa_next; 2207 index++; 2208 } 2209 2210 if (ifa) { 2211 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2212 return -EINVAL; 2213 } 2214 2215 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2216 if (ret) { 2217 ath6kl_err("fail to setup ip for arp agent\n"); 2218 return ret; 2219 } 2220 2221skip_arp: 2222 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2223 ATH6KL_WOW_MODE_ENABLE, 2224 filter, 2225 WOW_HOST_REQ_DELAY); 2226 if (ret) 2227 return ret; 2228 2229 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2230 if (ret) 2231 return ret; 2232 2233 return 0; 2234} 2235 2236static int ath6kl_wow_resume(struct ath6kl *ar) 2237{ 2238 struct ath6kl_vif *vif; 2239 int ret; 2240 2241 vif = ath6kl_vif_first(ar); 2242 if (!vif) 2243 return -EIO; 2244 2245 ar->state = ATH6KL_STATE_RESUMING; 2246 2247 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2248 ATH6KL_HOST_MODE_AWAKE); 2249 if (ret) { 2250 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2251 ret); 2252 ar->state = ATH6KL_STATE_WOW; 2253 return ret; 2254 } 2255 2256 if (vif->nw_type != AP_NETWORK) { 2257 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2258 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2259 if (ret) 2260 return ret; 2261 2262 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2263 vif->listen_intvl_t, 0); 2264 if (ret) 2265 return ret; 2266 2267 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2268 vif->bmiss_time_t, 0); 2269 if (ret) 2270 return ret; 2271 } 2272 2273 ar->state = ATH6KL_STATE_ON; 2274 2275 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2276 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2277 ar->fw_capabilities)) { 2278 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2279 vif->fw_vif_idx, true); 2280 if (ret) 2281 return ret; 2282 } 2283 2284 netif_wake_queue(vif->ndev); 2285 2286 return 0; 2287} 2288 2289static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2290{ 2291 struct ath6kl_vif *vif; 2292 int ret; 2293 2294 vif = ath6kl_vif_first(ar); 2295 if (!vif) 2296 return -EIO; 2297 2298 if (!test_bit(WMI_READY, &ar->flag)) { 2299 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2300 return -EIO; 2301 } 2302 2303 ath6kl_cfg80211_stop_all(ar); 2304 2305 /* Save the current power mode before enabling power save */ 2306 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2307 2308 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2309 if (ret) 2310 return ret; 2311 2312 /* Disable WOW mode */ 2313 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2314 ATH6KL_WOW_MODE_DISABLE, 2315 0, 0); 2316 if (ret) 2317 return ret; 2318 2319 /* Flush all non control pkts in TX path */ 2320 ath6kl_tx_data_cleanup(ar); 2321 2322 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2323 if (ret) 2324 return ret; 2325 2326 return 0; 2327} 2328 2329static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2330{ 2331 struct ath6kl_vif *vif; 2332 int ret; 2333 2334 vif = ath6kl_vif_first(ar); 2335 2336 if (!vif) 2337 return -EIO; 2338 2339 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2340 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2341 ar->wmi->saved_pwr_mode); 2342 if (ret) 2343 return ret; 2344 } 2345 2346 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2347 ATH6KL_HOST_MODE_AWAKE); 2348 if (ret) 2349 return ret; 2350 2351 ar->state = ATH6KL_STATE_ON; 2352 2353 /* Reset scan parameter to default values */ 2354 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2355 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2356 if (ret) 2357 return ret; 2358 2359 return 0; 2360} 2361 2362int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2363 enum ath6kl_cfg_suspend_mode mode, 2364 struct cfg80211_wowlan *wow) 2365{ 2366 struct ath6kl_vif *vif; 2367 enum ath6kl_state prev_state; 2368 int ret; 2369 2370 switch (mode) { 2371 case ATH6KL_CFG_SUSPEND_WOW: 2372 2373 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2374 2375 /* Flush all non control pkts in TX path */ 2376 ath6kl_tx_data_cleanup(ar); 2377 2378 prev_state = ar->state; 2379 2380 ret = ath6kl_wow_suspend(ar, wow); 2381 if (ret) { 2382 ar->state = prev_state; 2383 return ret; 2384 } 2385 2386 ar->state = ATH6KL_STATE_WOW; 2387 break; 2388 2389 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2390 2391 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2392 2393 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2394 if (ret) { 2395 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2396 return ret; 2397 } 2398 2399 ar->state = ATH6KL_STATE_DEEPSLEEP; 2400 2401 break; 2402 2403 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2404 2405 ath6kl_cfg80211_stop_all(ar); 2406 2407 if (ar->state == ATH6KL_STATE_OFF) { 2408 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2409 "suspend hw off, no action for cutpower\n"); 2410 break; 2411 } 2412 2413 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2414 2415 ret = ath6kl_init_hw_stop(ar); 2416 if (ret) { 2417 ath6kl_warn("failed to stop hw during suspend: %d\n", 2418 ret); 2419 } 2420 2421 ar->state = ATH6KL_STATE_CUTPOWER; 2422 2423 break; 2424 2425 case ATH6KL_CFG_SUSPEND_SCHED_SCAN: 2426 /* 2427 * Nothing needed for schedule scan, firmware is already in 2428 * wow mode and sleeping most of the time. 2429 */ 2430 break; 2431 2432 default: 2433 break; 2434 } 2435 2436 list_for_each_entry(vif, &ar->vif_list, list) 2437 ath6kl_cfg80211_scan_complete_event(vif, true); 2438 2439 return 0; 2440} 2441EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2442 2443int ath6kl_cfg80211_resume(struct ath6kl *ar) 2444{ 2445 int ret; 2446 2447 switch (ar->state) { 2448 case ATH6KL_STATE_WOW: 2449 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2450 2451 ret = ath6kl_wow_resume(ar); 2452 if (ret) { 2453 ath6kl_warn("wow mode resume failed: %d\n", ret); 2454 return ret; 2455 } 2456 2457 break; 2458 2459 case ATH6KL_STATE_DEEPSLEEP: 2460 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2461 2462 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2463 if (ret) { 2464 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2465 return ret; 2466 } 2467 break; 2468 2469 case ATH6KL_STATE_CUTPOWER: 2470 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2471 2472 ret = ath6kl_init_hw_start(ar); 2473 if (ret) { 2474 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2475 return ret; 2476 } 2477 break; 2478 2479 case ATH6KL_STATE_SCHED_SCAN: 2480 break; 2481 2482 default: 2483 break; 2484 } 2485 2486 return 0; 2487} 2488EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2489 2490#ifdef CONFIG_PM 2491 2492/* hif layer decides what suspend mode to use */ 2493static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2494 struct cfg80211_wowlan *wow) 2495{ 2496 struct ath6kl *ar = wiphy_priv(wiphy); 2497 2498 return ath6kl_hif_suspend(ar, wow); 2499} 2500 2501static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2502{ 2503 struct ath6kl *ar = wiphy_priv(wiphy); 2504 2505 return ath6kl_hif_resume(ar); 2506} 2507 2508/* 2509 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2510 * both sdio irq wake up and keep power. The target pulls sdio data line to 2511 * wake up the host when WOW pattern matches. This causes sdio irq handler 2512 * is being called in the host side which internally hits ath6kl's RX path. 2513 * 2514 * Since sdio interrupt is not disabled, RX path executes even before 2515 * the host executes the actual resume operation from PM module. 2516 * 2517 * In the current scenario, WOW resume should happen before start processing 2518 * any data from the target. So It's required to perform WOW resume in RX path. 2519 * Ideally we should perform WOW resume only in the actual platform 2520 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2521 * 2522 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2523 */ 2524void ath6kl_check_wow_status(struct ath6kl *ar) 2525{ 2526 if (ar->state == ATH6KL_STATE_SUSPENDING) 2527 return; 2528 2529 if (ar->state == ATH6KL_STATE_WOW) 2530 ath6kl_cfg80211_resume(ar); 2531} 2532 2533#else 2534 2535void ath6kl_check_wow_status(struct ath6kl *ar) 2536{ 2537} 2538#endif 2539 2540static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band, 2541 bool ht_enable) 2542{ 2543 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2544 2545 if (htcap->ht_enable == ht_enable) 2546 return 0; 2547 2548 if (ht_enable) { 2549 /* Set default ht capabilities */ 2550 htcap->ht_enable = true; 2551 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ? 2552 ath6kl_g_htcap : ath6kl_a_htcap; 2553 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2554 } else /* Disable ht */ 2555 memset(htcap, 0, sizeof(*htcap)); 2556 2557 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2558 band, htcap); 2559} 2560 2561static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2562{ 2563 struct wiphy *wiphy = vif->ar->wiphy; 2564 int band, ret = 0; 2565 2566 for (band = 0; band < IEEE80211_NUM_BANDS; band++) { 2567 if (!wiphy->bands[band]) 2568 continue; 2569 2570 ret = ath6kl_set_htcap(vif, band, 2571 wiphy->bands[band]->ht_cap.ht_supported); 2572 if (ret) 2573 return ret; 2574 } 2575 2576 return ret; 2577} 2578 2579static bool ath6kl_is_p2p_ie(const u8 *pos) 2580{ 2581 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2582 pos[2] == 0x50 && pos[3] == 0x6f && 2583 pos[4] == 0x9a && pos[5] == 0x09; 2584} 2585 2586static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2587 const u8 *ies, size_t ies_len) 2588{ 2589 struct ath6kl *ar = vif->ar; 2590 const u8 *pos; 2591 u8 *buf = NULL; 2592 size_t len = 0; 2593 int ret; 2594 2595 /* 2596 * Filter out P2P IE(s) since they will be included depending on 2597 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2598 */ 2599 2600 if (ies && ies_len) { 2601 buf = kmalloc(ies_len, GFP_KERNEL); 2602 if (buf == NULL) 2603 return -ENOMEM; 2604 pos = ies; 2605 while (pos + 1 < ies + ies_len) { 2606 if (pos + 2 + pos[1] > ies + ies_len) 2607 break; 2608 if (!ath6kl_is_p2p_ie(pos)) { 2609 memcpy(buf + len, pos, 2 + pos[1]); 2610 len += 2 + pos[1]; 2611 } 2612 pos += 2 + pos[1]; 2613 } 2614 } 2615 2616 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2617 WMI_FRAME_PROBE_RESP, buf, len); 2618 kfree(buf); 2619 return ret; 2620} 2621 2622static int ath6kl_set_ies(struct ath6kl_vif *vif, 2623 struct cfg80211_beacon_data *info) 2624{ 2625 struct ath6kl *ar = vif->ar; 2626 int res; 2627 2628 /* this also clears IE in fw if it's not set */ 2629 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2630 WMI_FRAME_BEACON, 2631 info->beacon_ies, 2632 info->beacon_ies_len); 2633 if (res) 2634 return res; 2635 2636 /* this also clears IE in fw if it's not set */ 2637 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2638 info->proberesp_ies_len); 2639 if (res) 2640 return res; 2641 2642 /* this also clears IE in fw if it's not set */ 2643 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2644 WMI_FRAME_ASSOC_RESP, 2645 info->assocresp_ies, 2646 info->assocresp_ies_len); 2647 if (res) 2648 return res; 2649 2650 return 0; 2651} 2652 2653void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, bool enable) 2654{ 2655 int err; 2656 2657 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 2658 return; 2659 2660 if (vif->nw_type != INFRA_NETWORK) 2661 return; 2662 2663 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 2664 vif->ar->fw_capabilities)) 2665 return; 2666 2667 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 2668 enable ? "enable" : "disable"); 2669 2670 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 2671 vif->fw_vif_idx, enable); 2672 if (err) 2673 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 2674 enable ? "enable" : "disable", err); 2675} 2676 2677static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2678 u8 *rsn_capab) 2679{ 2680 const u8 *rsn_ie; 2681 size_t rsn_ie_len; 2682 u16 cnt; 2683 2684 if (!beacon->tail) 2685 return -EINVAL; 2686 2687 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2688 if (!rsn_ie) 2689 return -EINVAL; 2690 2691 rsn_ie_len = *(rsn_ie + 1); 2692 /* skip element id and length */ 2693 rsn_ie += 2; 2694 2695 /* skip version */ 2696 if (rsn_ie_len < 2) 2697 return -EINVAL; 2698 rsn_ie += 2; 2699 rsn_ie_len -= 2; 2700 2701 /* skip group cipher suite */ 2702 if (rsn_ie_len < 4) 2703 return 0; 2704 rsn_ie += 4; 2705 rsn_ie_len -= 4; 2706 2707 /* skip pairwise cipher suite */ 2708 if (rsn_ie_len < 2) 2709 return 0; 2710 cnt = get_unaligned_le16(rsn_ie); 2711 rsn_ie += (2 + cnt * 4); 2712 rsn_ie_len -= (2 + cnt * 4); 2713 2714 /* skip akm suite */ 2715 if (rsn_ie_len < 2) 2716 return 0; 2717 cnt = get_unaligned_le16(rsn_ie); 2718 rsn_ie += (2 + cnt * 4); 2719 rsn_ie_len -= (2 + cnt * 4); 2720 2721 if (rsn_ie_len < 2) 2722 return 0; 2723 2724 memcpy(rsn_capab, rsn_ie, 2); 2725 2726 return 0; 2727} 2728 2729static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2730 struct cfg80211_ap_settings *info) 2731{ 2732 struct ath6kl *ar = ath6kl_priv(dev); 2733 struct ath6kl_vif *vif = netdev_priv(dev); 2734 struct ieee80211_mgmt *mgmt; 2735 bool hidden = false; 2736 u8 *ies; 2737 int ies_len; 2738 struct wmi_connect_cmd p; 2739 int res; 2740 int i, ret; 2741 u16 rsn_capab = 0; 2742 2743 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2744 2745 if (!ath6kl_cfg80211_ready(vif)) 2746 return -EIO; 2747 2748 if (vif->next_mode != AP_NETWORK) 2749 return -EOPNOTSUPP; 2750 2751 res = ath6kl_set_ies(vif, &info->beacon); 2752 2753 ar->ap_mode_bkey.valid = false; 2754 2755 /* TODO: 2756 * info->interval 2757 */ 2758 2759 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2760 info->dtim_period); 2761 2762 /* ignore error, just print a warning and continue normally */ 2763 if (ret) 2764 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2765 2766 if (info->beacon.head == NULL) 2767 return -EINVAL; 2768 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2769 ies = mgmt->u.beacon.variable; 2770 if (ies > info->beacon.head + info->beacon.head_len) 2771 return -EINVAL; 2772 ies_len = info->beacon.head + info->beacon.head_len - ies; 2773 2774 if (info->ssid == NULL) 2775 return -EINVAL; 2776 memcpy(vif->ssid, info->ssid, info->ssid_len); 2777 vif->ssid_len = info->ssid_len; 2778 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2779 hidden = true; 2780 2781 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2782 if (res) 2783 return res; 2784 2785 ret = ath6kl_set_auth_type(vif, info->auth_type); 2786 if (ret) 2787 return ret; 2788 2789 memset(&p, 0, sizeof(p)); 2790 2791 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2792 switch (info->crypto.akm_suites[i]) { 2793 case WLAN_AKM_SUITE_8021X: 2794 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2795 p.auth_mode |= WPA_AUTH; 2796 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2797 p.auth_mode |= WPA2_AUTH; 2798 break; 2799 case WLAN_AKM_SUITE_PSK: 2800 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2801 p.auth_mode |= WPA_PSK_AUTH; 2802 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2803 p.auth_mode |= WPA2_PSK_AUTH; 2804 break; 2805 } 2806 } 2807 if (p.auth_mode == 0) 2808 p.auth_mode = NONE_AUTH; 2809 vif->auth_mode = p.auth_mode; 2810 2811 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2812 switch (info->crypto.ciphers_pairwise[i]) { 2813 case WLAN_CIPHER_SUITE_WEP40: 2814 case WLAN_CIPHER_SUITE_WEP104: 2815 p.prwise_crypto_type |= WEP_CRYPT; 2816 break; 2817 case WLAN_CIPHER_SUITE_TKIP: 2818 p.prwise_crypto_type |= TKIP_CRYPT; 2819 break; 2820 case WLAN_CIPHER_SUITE_CCMP: 2821 p.prwise_crypto_type |= AES_CRYPT; 2822 break; 2823 case WLAN_CIPHER_SUITE_SMS4: 2824 p.prwise_crypto_type |= WAPI_CRYPT; 2825 break; 2826 } 2827 } 2828 if (p.prwise_crypto_type == 0) { 2829 p.prwise_crypto_type = NONE_CRYPT; 2830 ath6kl_set_cipher(vif, 0, true); 2831 } else if (info->crypto.n_ciphers_pairwise == 1) 2832 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2833 2834 switch (info->crypto.cipher_group) { 2835 case WLAN_CIPHER_SUITE_WEP40: 2836 case WLAN_CIPHER_SUITE_WEP104: 2837 p.grp_crypto_type = WEP_CRYPT; 2838 break; 2839 case WLAN_CIPHER_SUITE_TKIP: 2840 p.grp_crypto_type = TKIP_CRYPT; 2841 break; 2842 case WLAN_CIPHER_SUITE_CCMP: 2843 p.grp_crypto_type = AES_CRYPT; 2844 break; 2845 case WLAN_CIPHER_SUITE_SMS4: 2846 p.grp_crypto_type = WAPI_CRYPT; 2847 break; 2848 default: 2849 p.grp_crypto_type = NONE_CRYPT; 2850 break; 2851 } 2852 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2853 2854 p.nw_type = AP_NETWORK; 2855 vif->nw_type = vif->next_mode; 2856 2857 p.ssid_len = vif->ssid_len; 2858 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2859 p.dot11_auth_mode = vif->dot11_auth_mode; 2860 p.ch = cpu_to_le16(info->channel->center_freq); 2861 2862 /* Enable uAPSD support by default */ 2863 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2864 if (res < 0) 2865 return res; 2866 2867 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2868 p.nw_subtype = SUBTYPE_P2PGO; 2869 } else { 2870 /* 2871 * Due to firmware limitation, it is not possible to 2872 * do P2P mgmt operations in AP mode 2873 */ 2874 p.nw_subtype = SUBTYPE_NONE; 2875 } 2876 2877 if (info->inactivity_timeout) { 2878 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2879 info->inactivity_timeout); 2880 if (res < 0) 2881 return res; 2882 } 2883 2884 if (ath6kl_set_htcap(vif, info->channel->band, 2885 info->channel_type != NL80211_CHAN_NO_HT)) 2886 return -EIO; 2887 2888 /* 2889 * Get the PTKSA replay counter in the RSN IE. Supplicant 2890 * will use the RSN IE in M3 message and firmware has to 2891 * advertise the same in beacon/probe response. Send 2892 * the complete RSN IE capability field to firmware 2893 */ 2894 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2895 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2896 ar->fw_capabilities)) { 2897 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2898 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2899 (const u8 *) &rsn_capab, 2900 sizeof(rsn_capab)); 2901 if (res < 0) 2902 return res; 2903 } 2904 2905 memcpy(&vif->profile, &p, sizeof(p)); 2906 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2907 if (res < 0) 2908 return res; 2909 2910 return 0; 2911} 2912 2913static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2914 struct cfg80211_beacon_data *beacon) 2915{ 2916 struct ath6kl_vif *vif = netdev_priv(dev); 2917 2918 if (!ath6kl_cfg80211_ready(vif)) 2919 return -EIO; 2920 2921 if (vif->next_mode != AP_NETWORK) 2922 return -EOPNOTSUPP; 2923 2924 return ath6kl_set_ies(vif, beacon); 2925} 2926 2927static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) 2928{ 2929 struct ath6kl *ar = ath6kl_priv(dev); 2930 struct ath6kl_vif *vif = netdev_priv(dev); 2931 2932 if (vif->nw_type != AP_NETWORK) 2933 return -EOPNOTSUPP; 2934 if (!test_bit(CONNECTED, &vif->flags)) 2935 return -ENOTCONN; 2936 2937 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2938 clear_bit(CONNECTED, &vif->flags); 2939 2940 /* Restore ht setting in firmware */ 2941 return ath6kl_restore_htcap(vif); 2942} 2943 2944static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2945 2946static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2947 u8 *mac) 2948{ 2949 struct ath6kl *ar = ath6kl_priv(dev); 2950 struct ath6kl_vif *vif = netdev_priv(dev); 2951 const u8 *addr = mac ? mac : bcast_addr; 2952 2953 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 2954 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 2955} 2956 2957static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 2958 u8 *mac, struct station_parameters *params) 2959{ 2960 struct ath6kl *ar = ath6kl_priv(dev); 2961 struct ath6kl_vif *vif = netdev_priv(dev); 2962 2963 if (vif->nw_type != AP_NETWORK) 2964 return -EOPNOTSUPP; 2965 2966 /* Use this only for authorizing/unauthorizing a station */ 2967 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) 2968 return -EOPNOTSUPP; 2969 2970 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 2971 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 2972 WMI_AP_MLME_AUTHORIZE, mac, 0); 2973 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 2974 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 2975} 2976 2977static int ath6kl_remain_on_channel(struct wiphy *wiphy, 2978 struct wireless_dev *wdev, 2979 struct ieee80211_channel *chan, 2980 enum nl80211_channel_type channel_type, 2981 unsigned int duration, 2982 u64 *cookie) 2983{ 2984 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 2985 struct ath6kl *ar = ath6kl_priv(vif->ndev); 2986 u32 id; 2987 2988 /* TODO: if already pending or ongoing remain-on-channel, 2989 * return -EBUSY */ 2990 id = ++vif->last_roc_id; 2991 if (id == 0) { 2992 /* Do not use 0 as the cookie value */ 2993 id = ++vif->last_roc_id; 2994 } 2995 *cookie = id; 2996 2997 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 2998 chan->center_freq, duration); 2999} 3000 3001static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3002 struct wireless_dev *wdev, 3003 u64 cookie) 3004{ 3005 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3006 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3007 3008 if (cookie != vif->last_roc_id) 3009 return -ENOENT; 3010 vif->last_cancel_roc_id = cookie; 3011 3012 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3013} 3014 3015static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3016 const u8 *buf, size_t len, 3017 unsigned int freq) 3018{ 3019 struct ath6kl *ar = vif->ar; 3020 const u8 *pos; 3021 u8 *p2p; 3022 int p2p_len; 3023 int ret; 3024 const struct ieee80211_mgmt *mgmt; 3025 3026 mgmt = (const struct ieee80211_mgmt *) buf; 3027 3028 /* Include P2P IE(s) from the frame generated in user space. */ 3029 3030 p2p = kmalloc(len, GFP_KERNEL); 3031 if (p2p == NULL) 3032 return -ENOMEM; 3033 p2p_len = 0; 3034 3035 pos = mgmt->u.probe_resp.variable; 3036 while (pos + 1 < buf + len) { 3037 if (pos + 2 + pos[1] > buf + len) 3038 break; 3039 if (ath6kl_is_p2p_ie(pos)) { 3040 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3041 p2p_len += 2 + pos[1]; 3042 } 3043 pos += 2 + pos[1]; 3044 } 3045 3046 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3047 mgmt->da, p2p, p2p_len); 3048 kfree(p2p); 3049 return ret; 3050} 3051 3052static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3053 u32 id, 3054 u32 freq, 3055 u32 wait, 3056 const u8 *buf, 3057 size_t len, 3058 bool *more_data, 3059 bool no_cck) 3060{ 3061 struct ieee80211_mgmt *mgmt; 3062 struct ath6kl_sta *conn; 3063 bool is_psq_empty = false; 3064 struct ath6kl_mgmt_buff *mgmt_buf; 3065 size_t mgmt_buf_size; 3066 struct ath6kl *ar = vif->ar; 3067 3068 mgmt = (struct ieee80211_mgmt *) buf; 3069 if (is_multicast_ether_addr(mgmt->da)) 3070 return false; 3071 3072 conn = ath6kl_find_sta(vif, mgmt->da); 3073 if (!conn) 3074 return false; 3075 3076 if (conn->sta_flags & STA_PS_SLEEP) { 3077 if (!(conn->sta_flags & STA_PS_POLLED)) { 3078 /* Queue the frames if the STA is sleeping */ 3079 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3080 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3081 if (!mgmt_buf) 3082 return false; 3083 3084 INIT_LIST_HEAD(&mgmt_buf->list); 3085 mgmt_buf->id = id; 3086 mgmt_buf->freq = freq; 3087 mgmt_buf->wait = wait; 3088 mgmt_buf->len = len; 3089 mgmt_buf->no_cck = no_cck; 3090 memcpy(mgmt_buf->buf, buf, len); 3091 spin_lock_bh(&conn->psq_lock); 3092 is_psq_empty = skb_queue_empty(&conn->psq) && 3093 (conn->mgmt_psq_len == 0); 3094 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3095 conn->mgmt_psq_len++; 3096 spin_unlock_bh(&conn->psq_lock); 3097 3098 /* 3099 * If this is the first pkt getting queued 3100 * for this STA, update the PVB for this 3101 * STA. 3102 */ 3103 if (is_psq_empty) 3104 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3105 conn->aid, 1); 3106 return true; 3107 } 3108 3109 /* 3110 * This tx is because of a PsPoll. 3111 * Determine if MoreData bit has to be set. 3112 */ 3113 spin_lock_bh(&conn->psq_lock); 3114 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3115 *more_data = true; 3116 spin_unlock_bh(&conn->psq_lock); 3117 } 3118 3119 return false; 3120} 3121 3122/* Check if SSID length is greater than DIRECT- */ 3123static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3124{ 3125 const struct ieee80211_mgmt *mgmt; 3126 mgmt = (const struct ieee80211_mgmt *) buf; 3127 3128 /* variable[1] contains the SSID tag length */ 3129 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3130 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3131 return true; 3132 } 3133 3134 return false; 3135} 3136 3137static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3138 struct ieee80211_channel *chan, bool offchan, 3139 enum nl80211_channel_type channel_type, 3140 bool channel_type_valid, unsigned int wait, 3141 const u8 *buf, size_t len, bool no_cck, 3142 bool dont_wait_for_ack, u64 *cookie) 3143{ 3144 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3145 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3146 u32 id; 3147 const struct ieee80211_mgmt *mgmt; 3148 bool more_data, queued; 3149 3150 mgmt = (const struct ieee80211_mgmt *) buf; 3151 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3152 ieee80211_is_probe_resp(mgmt->frame_control) && 3153 ath6kl_is_p2p_go_ssid(buf, len)) { 3154 /* 3155 * Send Probe Response frame in GO mode using a separate WMI 3156 * command to allow the target to fill in the generic IEs. 3157 */ 3158 *cookie = 0; /* TX status not supported */ 3159 return ath6kl_send_go_probe_resp(vif, buf, len, 3160 chan->center_freq); 3161 } 3162 3163 id = vif->send_action_id++; 3164 if (id == 0) { 3165 /* 3166 * 0 is a reserved value in the WMI command and shall not be 3167 * used for the command. 3168 */ 3169 id = vif->send_action_id++; 3170 } 3171 3172 *cookie = id; 3173 3174 /* AP mode Power saving processing */ 3175 if (vif->nw_type == AP_NETWORK) { 3176 queued = ath6kl_mgmt_powersave_ap(vif, 3177 id, chan->center_freq, 3178 wait, buf, 3179 len, &more_data, no_cck); 3180 if (queued) 3181 return 0; 3182 } 3183 3184 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, 3185 chan->center_freq, wait, 3186 buf, len, no_cck); 3187} 3188 3189static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, 3190 struct wireless_dev *wdev, 3191 u16 frame_type, bool reg) 3192{ 3193 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3194 3195 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", 3196 __func__, frame_type, reg); 3197 if (frame_type == IEEE80211_STYPE_PROBE_REQ) { 3198 /* 3199 * Note: This notification callback is not allowed to sleep, so 3200 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we 3201 * hardcode target to report Probe Request frames all the time. 3202 */ 3203 vif->probe_req_report = reg; 3204 } 3205} 3206 3207static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3208 struct net_device *dev, 3209 struct cfg80211_sched_scan_request *request) 3210{ 3211 struct ath6kl *ar = ath6kl_priv(dev); 3212 struct ath6kl_vif *vif = netdev_priv(dev); 3213 u16 interval; 3214 int ret; 3215 3216 if (ar->state != ATH6KL_STATE_ON) 3217 return -EIO; 3218 3219 if (vif->sme_state != SME_DISCONNECTED) 3220 return -EBUSY; 3221 3222 /* The FW currently can't support multi-vif WoW properly. */ 3223 if (ar->num_vif > 1) 3224 return -EIO; 3225 3226 ath6kl_cfg80211_scan_complete_event(vif, true); 3227 3228 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3229 request->n_ssids, 3230 request->match_sets, 3231 request->n_match_sets); 3232 if (ret < 0) 3233 return ret; 3234 3235 if (!request->n_match_sets) { 3236 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3237 ALL_BSS_FILTER, 0); 3238 if (ret < 0) 3239 return ret; 3240 } else { 3241 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3242 MATCHED_SSID_FILTER, 0); 3243 if (ret < 0) 3244 return ret; 3245 } 3246 3247 /* fw uses seconds, also make sure that it's >0 */ 3248 interval = max_t(u16, 1, request->interval / 1000); 3249 3250 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3251 interval, interval, 3252 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3253 3254 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 3255 ATH6KL_WOW_MODE_ENABLE, 3256 WOW_FILTER_SSID, 3257 WOW_HOST_REQ_DELAY); 3258 if (ret) { 3259 ath6kl_warn("Failed to enable wow with ssid filter: %d\n", ret); 3260 return ret; 3261 } 3262 3263 /* this also clears IE in fw if it's not set */ 3264 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3265 WMI_FRAME_PROBE_REQ, 3266 request->ie, request->ie_len); 3267 if (ret) { 3268 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3269 ret); 3270 return ret; 3271 } 3272 3273 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 3274 ATH6KL_HOST_MODE_ASLEEP); 3275 if (ret) { 3276 ath6kl_warn("Failed to enable host sleep mode for sched scan: %d\n", 3277 ret); 3278 return ret; 3279 } 3280 3281 ar->state = ATH6KL_STATE_SCHED_SCAN; 3282 3283 return ret; 3284} 3285 3286static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3287 struct net_device *dev) 3288{ 3289 struct ath6kl_vif *vif = netdev_priv(dev); 3290 bool stopped; 3291 3292 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3293 3294 if (!stopped) 3295 return -EIO; 3296 3297 return 0; 3298} 3299 3300static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3301 struct net_device *dev, 3302 const u8 *addr, 3303 const struct cfg80211_bitrate_mask *mask) 3304{ 3305 struct ath6kl *ar = ath6kl_priv(dev); 3306 struct ath6kl_vif *vif = netdev_priv(dev); 3307 3308 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3309 mask); 3310} 3311 3312static const struct ieee80211_txrx_stypes 3313ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3314 [NL80211_IFTYPE_STATION] = { 3315 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3316 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3317 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3318 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3319 }, 3320 [NL80211_IFTYPE_AP] = { 3321 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3322 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3323 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3324 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3325 }, 3326 [NL80211_IFTYPE_P2P_CLIENT] = { 3327 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3328 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3329 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3330 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3331 }, 3332 [NL80211_IFTYPE_P2P_GO] = { 3333 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3334 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3335 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3336 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3337 }, 3338}; 3339 3340static struct cfg80211_ops ath6kl_cfg80211_ops = { 3341 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3342 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3343 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3344 .scan = ath6kl_cfg80211_scan, 3345 .connect = ath6kl_cfg80211_connect, 3346 .disconnect = ath6kl_cfg80211_disconnect, 3347 .add_key = ath6kl_cfg80211_add_key, 3348 .get_key = ath6kl_cfg80211_get_key, 3349 .del_key = ath6kl_cfg80211_del_key, 3350 .set_default_key = ath6kl_cfg80211_set_default_key, 3351 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3352 .set_tx_power = ath6kl_cfg80211_set_txpower, 3353 .get_tx_power = ath6kl_cfg80211_get_txpower, 3354 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3355 .join_ibss = ath6kl_cfg80211_join_ibss, 3356 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3357 .get_station = ath6kl_get_station, 3358 .set_pmksa = ath6kl_set_pmksa, 3359 .del_pmksa = ath6kl_del_pmksa, 3360 .flush_pmksa = ath6kl_flush_pmksa, 3361 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3362#ifdef CONFIG_PM 3363 .suspend = __ath6kl_cfg80211_suspend, 3364 .resume = __ath6kl_cfg80211_resume, 3365#endif 3366 .start_ap = ath6kl_start_ap, 3367 .change_beacon = ath6kl_change_beacon, 3368 .stop_ap = ath6kl_stop_ap, 3369 .del_station = ath6kl_del_station, 3370 .change_station = ath6kl_change_station, 3371 .remain_on_channel = ath6kl_remain_on_channel, 3372 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3373 .mgmt_tx = ath6kl_mgmt_tx, 3374 .mgmt_frame_register = ath6kl_mgmt_frame_register, 3375 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3376 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3377 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3378}; 3379 3380void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3381{ 3382 ath6kl_cfg80211_sscan_disable(vif); 3383 3384 switch (vif->sme_state) { 3385 case SME_DISCONNECTED: 3386 break; 3387 case SME_CONNECTING: 3388 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3389 NULL, 0, 3390 WLAN_STATUS_UNSPECIFIED_FAILURE, 3391 GFP_KERNEL); 3392 break; 3393 case SME_CONNECTED: 3394 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); 3395 break; 3396 } 3397 3398 if (test_bit(CONNECTED, &vif->flags) || 3399 test_bit(CONNECT_PEND, &vif->flags)) 3400 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3401 3402 vif->sme_state = SME_DISCONNECTED; 3403 clear_bit(CONNECTED, &vif->flags); 3404 clear_bit(CONNECT_PEND, &vif->flags); 3405 3406 /* disable scanning */ 3407 if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3408 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3409 ath6kl_warn("failed to disable scan during stop\n"); 3410 3411 ath6kl_cfg80211_scan_complete_event(vif, true); 3412} 3413 3414void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3415{ 3416 struct ath6kl_vif *vif; 3417 3418 vif = ath6kl_vif_first(ar); 3419 if (!vif) { 3420 /* save the current power mode before enabling power save */ 3421 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3422 3423 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3424 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3425 return; 3426 } 3427 3428 /* 3429 * FIXME: we should take ar->list_lock to protect changes in the 3430 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3431 * sleeps. 3432 */ 3433 list_for_each_entry(vif, &ar->vif_list, list) 3434 ath6kl_cfg80211_stop(vif); 3435} 3436 3437static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3438{ 3439 vif->aggr_cntxt = aggr_init(vif); 3440 if (!vif->aggr_cntxt) { 3441 ath6kl_err("failed to initialize aggr\n"); 3442 return -ENOMEM; 3443 } 3444 3445 setup_timer(&vif->disconnect_timer, disconnect_timer_handler, 3446 (unsigned long) vif->ndev); 3447 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 3448 (unsigned long) vif); 3449 3450 set_bit(WMM_ENABLED, &vif->flags); 3451 spin_lock_init(&vif->if_lock); 3452 3453 INIT_LIST_HEAD(&vif->mc_filter); 3454 3455 return 0; 3456} 3457 3458void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3459{ 3460 struct ath6kl *ar = vif->ar; 3461 struct ath6kl_mc_filter *mc_filter, *tmp; 3462 3463 aggr_module_destroy(vif->aggr_cntxt); 3464 3465 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3466 3467 if (vif->nw_type == ADHOC_NETWORK) 3468 ar->ibss_if_active = false; 3469 3470 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3471 list_del(&mc_filter->list); 3472 kfree(mc_filter); 3473 } 3474 3475 unregister_netdevice(vif->ndev); 3476 3477 ar->num_vif--; 3478} 3479 3480struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3481 enum nl80211_iftype type, 3482 u8 fw_vif_idx, u8 nw_type) 3483{ 3484 struct net_device *ndev; 3485 struct ath6kl_vif *vif; 3486 3487 ndev = alloc_netdev(sizeof(*vif), name, ether_setup); 3488 if (!ndev) 3489 return NULL; 3490 3491 vif = netdev_priv(ndev); 3492 ndev->ieee80211_ptr = &vif->wdev; 3493 vif->wdev.wiphy = ar->wiphy; 3494 vif->ar = ar; 3495 vif->ndev = ndev; 3496 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3497 vif->wdev.netdev = ndev; 3498 vif->wdev.iftype = type; 3499 vif->fw_vif_idx = fw_vif_idx; 3500 vif->nw_type = nw_type; 3501 vif->next_mode = nw_type; 3502 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3503 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3504 vif->bg_scan_period = 0; 3505 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true; 3506 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true; 3507 3508 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 3509 if (fw_vif_idx != 0) 3510 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 3511 0x2; 3512 3513 init_netdev(ndev); 3514 3515 ath6kl_init_control_info(vif); 3516 3517 if (ath6kl_cfg80211_vif_init(vif)) 3518 goto err; 3519 3520 if (register_netdevice(ndev)) 3521 goto err; 3522 3523 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3524 vif->sme_state = SME_DISCONNECTED; 3525 set_bit(WLAN_ENABLED, &vif->flags); 3526 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3527 set_bit(NETDEV_REGISTERED, &vif->flags); 3528 3529 if (type == NL80211_IFTYPE_ADHOC) 3530 ar->ibss_if_active = true; 3531 3532 spin_lock_bh(&ar->list_lock); 3533 list_add_tail(&vif->list, &ar->vif_list); 3534 spin_unlock_bh(&ar->list_lock); 3535 3536 return &vif->wdev; 3537 3538err: 3539 aggr_module_destroy(vif->aggr_cntxt); 3540 free_netdev(ndev); 3541 return NULL; 3542} 3543 3544int ath6kl_cfg80211_init(struct ath6kl *ar) 3545{ 3546 struct wiphy *wiphy = ar->wiphy; 3547 bool band_2gig = false, band_5gig = false, ht = false; 3548 int ret; 3549 3550 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3551 3552 wiphy->max_remain_on_channel_duration = 5000; 3553 3554 /* set device pointer for wiphy */ 3555 set_wiphy_dev(wiphy, ar->dev); 3556 3557 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3558 BIT(NL80211_IFTYPE_ADHOC) | 3559 BIT(NL80211_IFTYPE_AP); 3560 if (ar->p2p) { 3561 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3562 BIT(NL80211_IFTYPE_P2P_CLIENT); 3563 } 3564 3565 /* max num of ssids that can be probed during scanning */ 3566 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3567 3568 /* max num of ssids that can be matched after scan */ 3569 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3570 ar->fw_capabilities)) 3571 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3572 3573 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3574 switch (ar->hw.cap) { 3575 case WMI_11AN_CAP: 3576 ht = true; 3577 case WMI_11A_CAP: 3578 band_5gig = true; 3579 break; 3580 case WMI_11GN_CAP: 3581 ht = true; 3582 case WMI_11G_CAP: 3583 band_2gig = true; 3584 break; 3585 case WMI_11AGN_CAP: 3586 ht = true; 3587 case WMI_11AG_CAP: 3588 band_2gig = true; 3589 band_5gig = true; 3590 break; 3591 default: 3592 ath6kl_err("invalid phy capability!\n"); 3593 return -EINVAL; 3594 } 3595 3596 /* 3597 * Even if the fw has HT support, advertise HT cap only when 3598 * the firmware has support to override RSN capability, otherwise 3599 * 4-way handshake would fail. 3600 */ 3601 if (!(ht && 3602 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3603 ar->fw_capabilities))) { 3604 ath6kl_band_2ghz.ht_cap.cap = 0; 3605 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3606 ath6kl_band_5ghz.ht_cap.cap = 0; 3607 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3608 } 3609 3610 if (ar->hw.flags & ATH6KL_HW_FLAG_64BIT_RATES) { 3611 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3612 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3613 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3614 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3615 } else { 3616 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3617 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3618 } 3619 3620 if (band_2gig) 3621 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3622 if (band_5gig) 3623 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3624 3625 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3626 3627 wiphy->cipher_suites = cipher_suites; 3628 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3629 3630#ifdef CONFIG_PM 3631 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | 3632 WIPHY_WOWLAN_DISCONNECT | 3633 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3634 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3635 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3636 WIPHY_WOWLAN_4WAY_HANDSHAKE; 3637 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; 3638 wiphy->wowlan.pattern_min_len = 1; 3639 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; 3640#endif 3641 3642 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3643 3644 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3645 WIPHY_FLAG_HAVE_AP_SME | 3646 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3647 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3648 3649 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities)) 3650 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 3651 3652 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3653 ar->fw_capabilities)) 3654 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3655 3656 ar->wiphy->probe_resp_offload = 3657 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3658 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3659 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3660 3661 ret = wiphy_register(wiphy); 3662 if (ret < 0) { 3663 ath6kl_err("couldn't register wiphy device\n"); 3664 return ret; 3665 } 3666 3667 ar->wiphy_registered = true; 3668 3669 return 0; 3670} 3671 3672void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 3673{ 3674 wiphy_unregister(ar->wiphy); 3675 3676 ar->wiphy_registered = false; 3677} 3678 3679struct ath6kl *ath6kl_cfg80211_create(void) 3680{ 3681 struct ath6kl *ar; 3682 struct wiphy *wiphy; 3683 3684 /* create a new wiphy for use with cfg80211 */ 3685 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 3686 3687 if (!wiphy) { 3688 ath6kl_err("couldn't allocate wiphy device\n"); 3689 return NULL; 3690 } 3691 3692 ar = wiphy_priv(wiphy); 3693 ar->wiphy = wiphy; 3694 3695 return ar; 3696} 3697 3698/* Note: ar variable must not be accessed after calling this! */ 3699void ath6kl_cfg80211_destroy(struct ath6kl *ar) 3700{ 3701 int i; 3702 3703 for (i = 0; i < AP_MAX_NUM_STA; i++) 3704 kfree(ar->sta_list[i].aggr_conn); 3705 3706 wiphy_free(ar->wiphy); 3707} 3708 3709