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cfg80211.c
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linux-6.19.14/drivers/net/wireless/ath/ath6kl/cfg80211.c
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#include <linux/sched/signal.h> 24 25#include "core.h" 26#include "cfg80211.h" 27#include "debug.h" 28#include "hif-ops.h" 29#include "testmode.h" 30 31#define RATETAB_ENT(_rate, _rateid, _flags) { \ 32 .bitrate = (_rate), \ 33 .flags = (_flags), \ 34 .hw_value = (_rateid), \ 35} 36 37#define CHAN2G(_channel, _freq, _flags) { \ 38 .band = NL80211_BAND_2GHZ, \ 39 .hw_value = (_channel), \ 40 .center_freq = (_freq), \ 41 .flags = (_flags), \ 42 .max_antenna_gain = 0, \ 43 .max_power = 30, \ 44} 45 46#define CHAN5G(_channel, _flags) { \ 47 .band = NL80211_BAND_5GHZ, \ 48 .hw_value = (_channel), \ 49 .center_freq = 5000 + (5 * (_channel)), \ 50 .flags = (_flags), \ 51 .max_antenna_gain = 0, \ 52 .max_power = 30, \ 53} 54 55#define DEFAULT_BG_SCAN_PERIOD 60 56 57struct ath6kl_cfg80211_match_probe_ssid { 58 struct cfg80211_ssid ssid; 59 u8 flag; 60}; 61 62static struct ieee80211_rate ath6kl_rates[] = { 63 RATETAB_ENT(10, 0x1, 0), 64 RATETAB_ENT(20, 0x2, 0), 65 RATETAB_ENT(55, 0x4, 0), 66 RATETAB_ENT(110, 0x8, 0), 67 RATETAB_ENT(60, 0x10, 0), 68 RATETAB_ENT(90, 0x20, 0), 69 RATETAB_ENT(120, 0x40, 0), 70 RATETAB_ENT(180, 0x80, 0), 71 RATETAB_ENT(240, 0x100, 0), 72 RATETAB_ENT(360, 0x200, 0), 73 RATETAB_ENT(480, 0x400, 0), 74 RATETAB_ENT(540, 0x800, 0), 75}; 76 77#define ath6kl_a_rates (ath6kl_rates + 4) 78#define ath6kl_a_rates_size 8 79#define ath6kl_g_rates (ath6kl_rates + 0) 80#define ath6kl_g_rates_size 12 81 82#define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 83#define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ 84 IEEE80211_HT_CAP_SGI_20 | \ 85 IEEE80211_HT_CAP_SGI_40) 86 87static struct ieee80211_channel ath6kl_2ghz_channels[] = { 88 CHAN2G(1, 2412, 0), 89 CHAN2G(2, 2417, 0), 90 CHAN2G(3, 2422, 0), 91 CHAN2G(4, 2427, 0), 92 CHAN2G(5, 2432, 0), 93 CHAN2G(6, 2437, 0), 94 CHAN2G(7, 2442, 0), 95 CHAN2G(8, 2447, 0), 96 CHAN2G(9, 2452, 0), 97 CHAN2G(10, 2457, 0), 98 CHAN2G(11, 2462, 0), 99 CHAN2G(12, 2467, 0), 100 CHAN2G(13, 2472, 0), 101 CHAN2G(14, 2484, 0), 102}; 103 104static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { 105 CHAN5G(36, 0), CHAN5G(40, 0), 106 CHAN5G(44, 0), CHAN5G(48, 0), 107 CHAN5G(52, 0), CHAN5G(56, 0), 108 CHAN5G(60, 0), CHAN5G(64, 0), 109 CHAN5G(100, 0), CHAN5G(104, 0), 110 CHAN5G(108, 0), CHAN5G(112, 0), 111 CHAN5G(116, 0), CHAN5G(120, 0), 112 CHAN5G(124, 0), CHAN5G(128, 0), 113 CHAN5G(132, 0), CHAN5G(136, 0), 114 CHAN5G(140, 0), CHAN5G(149, 0), 115 CHAN5G(153, 0), CHAN5G(157, 0), 116 CHAN5G(161, 0), CHAN5G(165, 0), 117 CHAN5G(184, 0), CHAN5G(188, 0), 118 CHAN5G(192, 0), CHAN5G(196, 0), 119 CHAN5G(200, 0), CHAN5G(204, 0), 120 CHAN5G(208, 0), CHAN5G(212, 0), 121 CHAN5G(216, 0), 122}; 123 124static struct ieee80211_supported_band ath6kl_band_2ghz = { 125 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), 126 .channels = ath6kl_2ghz_channels, 127 .n_bitrates = ath6kl_g_rates_size, 128 .bitrates = ath6kl_g_rates, 129 .ht_cap.cap = ath6kl_g_htcap, 130 .ht_cap.ht_supported = true, 131}; 132 133static struct ieee80211_supported_band ath6kl_band_5ghz = { 134 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), 135 .channels = ath6kl_5ghz_a_channels, 136 .n_bitrates = ath6kl_a_rates_size, 137 .bitrates = ath6kl_a_rates, 138 .ht_cap.cap = ath6kl_a_htcap, 139 .ht_cap.ht_supported = true, 140}; 141 142#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 143 144/* returns true if scheduled scan was stopped */ 145static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) 146{ 147 struct ath6kl *ar = vif->ar; 148 149 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) 150 return false; 151 152 timer_delete_sync(&vif->sched_scan_timer); 153 154 if (ar->state == ATH6KL_STATE_RECOVERY) 155 return true; 156 157 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); 158 159 return true; 160} 161 162static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) 163{ 164 struct ath6kl *ar = vif->ar; 165 bool stopped; 166 167 stopped = __ath6kl_cfg80211_sscan_stop(vif); 168 169 if (!stopped) 170 return; 171 172 cfg80211_sched_scan_stopped(ar->wiphy, 0); 173} 174 175static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, 176 enum nl80211_wpa_versions wpa_version) 177{ 178 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); 179 180 if (!wpa_version) { 181 vif->auth_mode = NONE_AUTH; 182 } else if (wpa_version & NL80211_WPA_VERSION_2) { 183 vif->auth_mode = WPA2_AUTH; 184 } else if (wpa_version & NL80211_WPA_VERSION_1) { 185 vif->auth_mode = WPA_AUTH; 186 } else { 187 ath6kl_err("%s: %u not supported\n", __func__, wpa_version); 188 return -ENOTSUPP; 189 } 190 191 return 0; 192} 193 194static int ath6kl_set_auth_type(struct ath6kl_vif *vif, 195 enum nl80211_auth_type auth_type) 196{ 197 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); 198 199 switch (auth_type) { 200 case NL80211_AUTHTYPE_OPEN_SYSTEM: 201 vif->dot11_auth_mode = OPEN_AUTH; 202 break; 203 case NL80211_AUTHTYPE_SHARED_KEY: 204 vif->dot11_auth_mode = SHARED_AUTH; 205 break; 206 case NL80211_AUTHTYPE_NETWORK_EAP: 207 vif->dot11_auth_mode = LEAP_AUTH; 208 break; 209 210 case NL80211_AUTHTYPE_AUTOMATIC: 211 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; 212 break; 213 214 default: 215 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); 216 return -ENOTSUPP; 217 } 218 219 return 0; 220} 221 222static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) 223{ 224 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; 225 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : 226 &vif->grp_crypto_len; 227 228 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", 229 __func__, cipher, ucast); 230 231 switch (cipher) { 232 case 0: 233 /* our own hack to use value 0 as no crypto used */ 234 *ar_cipher = NONE_CRYPT; 235 *ar_cipher_len = 0; 236 break; 237 case WLAN_CIPHER_SUITE_WEP40: 238 *ar_cipher = WEP_CRYPT; 239 *ar_cipher_len = 5; 240 break; 241 case WLAN_CIPHER_SUITE_WEP104: 242 *ar_cipher = WEP_CRYPT; 243 *ar_cipher_len = 13; 244 break; 245 case WLAN_CIPHER_SUITE_TKIP: 246 *ar_cipher = TKIP_CRYPT; 247 *ar_cipher_len = 0; 248 break; 249 case WLAN_CIPHER_SUITE_CCMP: 250 *ar_cipher = AES_CRYPT; 251 *ar_cipher_len = 0; 252 break; 253 case WLAN_CIPHER_SUITE_SMS4: 254 *ar_cipher = WAPI_CRYPT; 255 *ar_cipher_len = 0; 256 break; 257 default: 258 ath6kl_err("cipher 0x%x not supported\n", cipher); 259 return -ENOTSUPP; 260 } 261 262 return 0; 263} 264 265static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt) 266{ 267 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); 268 269 if (key_mgmt == WLAN_AKM_SUITE_PSK) { 270 if (vif->auth_mode == WPA_AUTH) 271 vif->auth_mode = WPA_PSK_AUTH; 272 else if (vif->auth_mode == WPA2_AUTH) 273 vif->auth_mode = WPA2_PSK_AUTH; 274 } else if (key_mgmt == 0x00409600) { 275 if (vif->auth_mode == WPA_AUTH) 276 vif->auth_mode = WPA_AUTH_CCKM; 277 else if (vif->auth_mode == WPA2_AUTH) 278 vif->auth_mode = WPA2_AUTH_CCKM; 279 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { 280 vif->auth_mode = NONE_AUTH; 281 } 282} 283 284static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) 285{ 286 struct ath6kl *ar = vif->ar; 287 288 if (!test_bit(WMI_READY, &ar->flag)) { 289 ath6kl_err("wmi is not ready\n"); 290 return false; 291 } 292 293 if (!test_bit(WLAN_ENABLED, &vif->flags)) { 294 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "wlan disabled\n"); 295 return false; 296 } 297 298 return true; 299} 300 301static bool ath6kl_is_wpa_ie(const u8 *pos) 302{ 303 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 304 pos[2] == 0x00 && pos[3] == 0x50 && 305 pos[4] == 0xf2 && pos[5] == 0x01; 306} 307 308static bool ath6kl_is_rsn_ie(const u8 *pos) 309{ 310 return pos[0] == WLAN_EID_RSN; 311} 312 313static bool ath6kl_is_wps_ie(const u8 *pos) 314{ 315 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 316 pos[1] >= 4 && 317 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && 318 pos[5] == 0x04); 319} 320 321static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, 322 size_t ies_len) 323{ 324 struct ath6kl *ar = vif->ar; 325 const u8 *pos; 326 u8 *buf = NULL; 327 size_t len = 0; 328 int ret; 329 330 /* 331 * Clear previously set flag 332 */ 333 334 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 335 336 /* 337 * Filter out RSN/WPA IE(s) 338 */ 339 340 if (ies && ies_len) { 341 buf = kmalloc(ies_len, GFP_KERNEL); 342 if (buf == NULL) 343 return -ENOMEM; 344 pos = ies; 345 346 while (pos + 1 < ies + ies_len) { 347 if (pos + 2 + pos[1] > ies + ies_len) 348 break; 349 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { 350 memcpy(buf + len, pos, 2 + pos[1]); 351 len += 2 + pos[1]; 352 } 353 354 if (ath6kl_is_wps_ie(pos)) 355 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; 356 357 pos += 2 + pos[1]; 358 } 359 } 360 361 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 362 WMI_FRAME_ASSOC_REQ, buf, len); 363 kfree(buf); 364 return ret; 365} 366 367static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) 368{ 369 switch (type) { 370 case NL80211_IFTYPE_STATION: 371 case NL80211_IFTYPE_P2P_CLIENT: 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 case NL80211_IFTYPE_P2P_GO: 379 *nw_type = AP_NETWORK; 380 break; 381 default: 382 ath6kl_err("invalid interface type %u\n", type); 383 return -ENOTSUPP; 384 } 385 386 return 0; 387} 388 389static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, 390 u8 *if_idx, u8 *nw_type) 391{ 392 int i; 393 394 if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) 395 return false; 396 397 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && 398 ar->num_vif)) 399 return false; 400 401 if (type == NL80211_IFTYPE_STATION || 402 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { 403 for (i = 0; i < ar->vif_max; i++) { 404 if ((ar->avail_idx_map) & BIT(i)) { 405 *if_idx = i; 406 return true; 407 } 408 } 409 } 410 411 if (type == NL80211_IFTYPE_P2P_CLIENT || 412 type == NL80211_IFTYPE_P2P_GO) { 413 for (i = ar->max_norm_iface; i < ar->vif_max; i++) { 414 if ((ar->avail_idx_map) & BIT(i)) { 415 *if_idx = i; 416 return true; 417 } 418 } 419 } 420 421 return false; 422} 423 424static bool ath6kl_is_tx_pending(struct ath6kl *ar) 425{ 426 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; 427} 428 429static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, 430 bool enable) 431{ 432 int err; 433 434 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) 435 return; 436 437 if (vif->nw_type != INFRA_NETWORK) 438 return; 439 440 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, 441 vif->ar->fw_capabilities)) 442 return; 443 444 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", 445 enable ? "enable" : "disable"); 446 447 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, 448 vif->fw_vif_idx, enable); 449 if (err) 450 ath6kl_err("failed to %s enhanced bmiss detection: %d\n", 451 enable ? "enable" : "disable", err); 452} 453 454static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 455 struct cfg80211_connect_params *sme) 456{ 457 struct ath6kl *ar = ath6kl_priv(dev); 458 struct ath6kl_vif *vif = netdev_priv(dev); 459 int status; 460 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; 461 u16 interval; 462 463 ath6kl_cfg80211_sscan_disable(vif); 464 465 vif->sme_state = SME_CONNECTING; 466 467 if (!ath6kl_cfg80211_ready(vif)) 468 return -EIO; 469 470 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 471 ath6kl_err("destroy in progress\n"); 472 return -EBUSY; 473 } 474 475 if (test_bit(SKIP_SCAN, &ar->flag) && 476 ((sme->channel && sme->channel->center_freq == 0) || 477 (sme->bssid && is_zero_ether_addr(sme->bssid)))) { 478 ath6kl_err("SkipScan: channel or bssid invalid\n"); 479 return -EINVAL; 480 } 481 482 if (down_interruptible(&ar->sem)) { 483 ath6kl_err("busy, couldn't get access\n"); 484 return -ERESTARTSYS; 485 } 486 487 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 488 ath6kl_err("busy, destroy in progress\n"); 489 up(&ar->sem); 490 return -EBUSY; 491 } 492 493 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { 494 /* 495 * sleep until the command queue drains 496 */ 497 wait_event_interruptible_timeout(ar->event_wq, 498 ath6kl_is_tx_pending(ar), 499 WMI_TIMEOUT); 500 if (signal_pending(current)) { 501 ath6kl_err("cmd queue drain timeout\n"); 502 up(&ar->sem); 503 return -EINTR; 504 } 505 } 506 507 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); 508 if (status) { 509 up(&ar->sem); 510 return status; 511 } 512 513 if (sme->ie == NULL || sme->ie_len == 0) 514 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; 515 516 if (test_bit(CONNECTED, &vif->flags) && 517 vif->ssid_len == sme->ssid_len && 518 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 519 vif->reconnect_flag = true; 520 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, 521 vif->req_bssid, 522 vif->ch_hint); 523 524 up(&ar->sem); 525 if (status) { 526 ath6kl_err("wmi_reconnect_cmd failed\n"); 527 return -EIO; 528 } 529 return 0; 530 } else if (vif->ssid_len == sme->ssid_len && 531 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { 532 ath6kl_disconnect(vif); 533 } 534 535 memset(vif->ssid, 0, sizeof(vif->ssid)); 536 vif->ssid_len = sme->ssid_len; 537 memcpy(vif->ssid, sme->ssid, sme->ssid_len); 538 539 if (sme->channel) 540 vif->ch_hint = sme->channel->center_freq; 541 542 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 543 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) 544 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); 545 546 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); 547 548 status = ath6kl_set_auth_type(vif, sme->auth_type); 549 if (status) { 550 up(&ar->sem); 551 return status; 552 } 553 554 if (sme->crypto.n_ciphers_pairwise) 555 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); 556 else 557 ath6kl_set_cipher(vif, 0, true); 558 559 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); 560 561 if (sme->crypto.n_akm_suites) 562 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); 563 564 if ((sme->key_len) && 565 (vif->auth_mode == NONE_AUTH) && 566 (vif->prwise_crypto == WEP_CRYPT)) { 567 struct ath6kl_key *key = NULL; 568 569 if (sme->key_idx > WMI_MAX_KEY_INDEX) { 570 ath6kl_err("key index %d out of bounds\n", 571 sme->key_idx); 572 up(&ar->sem); 573 return -ENOENT; 574 } 575 576 key = &vif->keys[sme->key_idx]; 577 key->key_len = sme->key_len; 578 memcpy(key->key, sme->key, key->key_len); 579 key->cipher = vif->prwise_crypto; 580 vif->def_txkey_index = sme->key_idx; 581 582 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, 583 vif->prwise_crypto, 584 GROUP_USAGE | TX_USAGE, 585 key->key_len, 586 NULL, 0, 587 key->key, KEY_OP_INIT_VAL, NULL, 588 NO_SYNC_WMIFLAG); 589 } 590 591 if (!ar->usr_bss_filter) { 592 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 593 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 594 ALL_BSS_FILTER, 0) != 0) { 595 ath6kl_err("couldn't set bss filtering\n"); 596 up(&ar->sem); 597 return -EIO; 598 } 599 } 600 601 vif->nw_type = vif->next_mode; 602 603 /* enable enhanced bmiss detection if applicable */ 604 ath6kl_cfg80211_sta_bmiss_enhance(vif, true); 605 606 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) 607 nw_subtype = SUBTYPE_P2PCLIENT; 608 609 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 610 "%s: connect called with authmode %d dot11 auth %d" 611 " PW crypto %d PW crypto len %d GRP crypto %d" 612 " GRP crypto len %d channel hint %u\n", 613 __func__, 614 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 615 vif->prwise_crypto_len, vif->grp_crypto, 616 vif->grp_crypto_len, vif->ch_hint); 617 618 vif->reconnect_flag = 0; 619 620 if (vif->nw_type == INFRA_NETWORK) { 621 interval = max_t(u16, vif->listen_intvl_t, 622 ATH6KL_MAX_WOW_LISTEN_INTL); 623 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 624 interval, 625 0); 626 if (status) { 627 ath6kl_err("couldn't set listen intervel\n"); 628 up(&ar->sem); 629 return status; 630 } 631 } 632 633 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 634 vif->dot11_auth_mode, vif->auth_mode, 635 vif->prwise_crypto, 636 vif->prwise_crypto_len, 637 vif->grp_crypto, vif->grp_crypto_len, 638 vif->ssid_len, vif->ssid, 639 vif->req_bssid, vif->ch_hint, 640 ar->connect_ctrl_flags, nw_subtype); 641 642 if (sme->bg_scan_period == 0) { 643 /* disable background scan if period is 0 */ 644 sme->bg_scan_period = 0xffff; 645 } else if (sme->bg_scan_period == -1) { 646 /* configure default value if not specified */ 647 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 648 } 649 650 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, 651 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 652 653 up(&ar->sem); 654 655 if (status == -EINVAL) { 656 memset(vif->ssid, 0, sizeof(vif->ssid)); 657 vif->ssid_len = 0; 658 ath6kl_err("invalid request\n"); 659 return -ENOENT; 660 } else if (status) { 661 ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); 662 return -EIO; 663 } 664 665 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && 666 ((vif->auth_mode == WPA_PSK_AUTH) || 667 (vif->auth_mode == WPA2_PSK_AUTH))) { 668 mod_timer(&vif->disconnect_timer, 669 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); 670 } 671 672 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; 673 set_bit(CONNECT_PEND, &vif->flags); 674 675 return 0; 676} 677 678static struct cfg80211_bss * 679ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, 680 enum network_type nw_type, 681 const u8 *bssid, 682 struct ieee80211_channel *chan, 683 const u8 *beacon_ie, 684 size_t beacon_ie_len) 685{ 686 struct ath6kl *ar = vif->ar; 687 struct cfg80211_bss *bss; 688 u16 cap_val; 689 enum ieee80211_bss_type bss_type; 690 u8 *ie; 691 692 if (nw_type & ADHOC_NETWORK) { 693 cap_val = WLAN_CAPABILITY_IBSS; 694 bss_type = IEEE80211_BSS_TYPE_IBSS; 695 } else { 696 cap_val = WLAN_CAPABILITY_ESS; 697 bss_type = IEEE80211_BSS_TYPE_ESS; 698 } 699 700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid, 701 vif->ssid, vif->ssid_len, 702 bss_type, IEEE80211_PRIVACY_ANY); 703 if (bss == NULL) { 704 /* 705 * Since cfg80211 may not yet know about the BSS, 706 * generate a partial entry until the first BSS info 707 * event becomes available. 708 * 709 * Prepend SSID element since it is not included in the Beacon 710 * IEs from the target. 711 */ 712 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); 713 if (ie == NULL) 714 return NULL; 715 ie[0] = WLAN_EID_SSID; 716 ie[1] = vif->ssid_len; 717 memcpy(ie + 2, vif->ssid, vif->ssid_len); 718 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); 719 bss = cfg80211_inform_bss(ar->wiphy, chan, 720 CFG80211_BSS_FTYPE_UNKNOWN, 721 bssid, 0, cap_val, 100, 722 ie, 2 + vif->ssid_len + beacon_ie_len, 723 0, GFP_KERNEL); 724 if (bss) 725 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 726 "added bss %pM to cfg80211\n", bssid); 727 kfree(ie); 728 } else { 729 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); 730 } 731 732 return bss; 733} 734 735void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel, 736 u8 *bssid, u16 listen_intvl, 737 u16 beacon_intvl, 738 enum network_type nw_type, 739 u8 beacon_ie_len, u8 assoc_req_len, 740 u8 assoc_resp_len, u8 *assoc_info) 741{ 742 struct ieee80211_channel *chan; 743 struct ath6kl *ar = vif->ar; 744 struct cfg80211_bss *bss; 745 746 /* capinfo + listen interval */ 747 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); 748 749 /* capinfo + status code + associd */ 750 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); 751 752 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; 753 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + 754 assoc_resp_ie_offset; 755 756 assoc_req_len -= assoc_req_ie_offset; 757 assoc_resp_len -= assoc_resp_ie_offset; 758 759 /* 760 * Store Beacon interval here; DTIM period will be available only once 761 * a Beacon frame from the AP is seen. 762 */ 763 vif->assoc_bss_beacon_int = beacon_intvl; 764 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); 765 766 if (nw_type & ADHOC_NETWORK) { 767 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) { 768 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 769 "%s: ath6k not in ibss mode\n", __func__); 770 return; 771 } 772 } 773 774 if (nw_type & INFRA_NETWORK) { 775 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 776 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 777 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 778 "%s: ath6k not in station mode\n", __func__); 779 return; 780 } 781 } 782 783 chan = ieee80211_get_channel(ar->wiphy, (int) channel); 784 785 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, 786 assoc_info, beacon_ie_len); 787 if (!bss) { 788 ath6kl_err("could not add cfg80211 bss entry\n"); 789 return; 790 } 791 792 if (nw_type & ADHOC_NETWORK) { 793 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", 794 nw_type & ADHOC_CREATOR ? "creator" : "joiner"); 795 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL); 796 cfg80211_put_bss(ar->wiphy, bss); 797 return; 798 } 799 800 if (vif->sme_state == SME_CONNECTING) { 801 /* inform connect result to cfg80211 */ 802 vif->sme_state = SME_CONNECTED; 803 cfg80211_connect_result(vif->ndev, bssid, 804 assoc_req_ie, assoc_req_len, 805 assoc_resp_ie, assoc_resp_len, 806 WLAN_STATUS_SUCCESS, GFP_KERNEL); 807 cfg80211_put_bss(ar->wiphy, bss); 808 } else if (vif->sme_state == SME_CONNECTED) { 809 struct cfg80211_roam_info roam_info = { 810 .links[0].bss = bss, 811 .req_ie = assoc_req_ie, 812 .req_ie_len = assoc_req_len, 813 .resp_ie = assoc_resp_ie, 814 .resp_ie_len = assoc_resp_len, 815 }; 816 /* inform roam event to cfg80211 */ 817 cfg80211_roamed(vif->ndev, &roam_info, GFP_KERNEL); 818 } 819} 820 821static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, 822 struct net_device *dev, u16 reason_code) 823{ 824 struct ath6kl *ar = ath6kl_priv(dev); 825 struct ath6kl_vif *vif = netdev_priv(dev); 826 827 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, 828 reason_code); 829 830 ath6kl_cfg80211_sscan_disable(vif); 831 832 if (!ath6kl_cfg80211_ready(vif)) 833 return -EIO; 834 835 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { 836 ath6kl_err("busy, destroy in progress\n"); 837 return -EBUSY; 838 } 839 840 if (down_interruptible(&ar->sem)) { 841 ath6kl_err("busy, couldn't get access\n"); 842 return -ERESTARTSYS; 843 } 844 845 vif->reconnect_flag = 0; 846 ath6kl_disconnect(vif); 847 memset(vif->ssid, 0, sizeof(vif->ssid)); 848 vif->ssid_len = 0; 849 850 if (!test_bit(SKIP_SCAN, &ar->flag)) 851 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 852 853 up(&ar->sem); 854 855 return 0; 856} 857 858void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, 859 u8 *bssid, u8 assoc_resp_len, 860 u8 *assoc_info, u16 proto_reason) 861{ 862 struct ath6kl *ar = vif->ar; 863 864 if (vif->scan_req) { 865 struct cfg80211_scan_info info = { 866 .aborted = true, 867 }; 868 869 cfg80211_scan_done(vif->scan_req, &info); 870 vif->scan_req = NULL; 871 } 872 873 if (vif->nw_type & ADHOC_NETWORK) { 874 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) 875 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 876 "%s: ath6k not in ibss mode\n", __func__); 877 return; 878 } 879 880 if (vif->nw_type & INFRA_NETWORK) { 881 if (vif->wdev.iftype != NL80211_IFTYPE_STATION && 882 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { 883 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 884 "%s: ath6k not in station mode\n", __func__); 885 return; 886 } 887 } 888 889 clear_bit(CONNECT_PEND, &vif->flags); 890 891 if (vif->sme_state == SME_CONNECTING) { 892 cfg80211_connect_result(vif->ndev, 893 bssid, NULL, 0, 894 NULL, 0, 895 WLAN_STATUS_UNSPECIFIED_FAILURE, 896 GFP_KERNEL); 897 } else if (vif->sme_state == SME_CONNECTED) { 898 cfg80211_disconnected(vif->ndev, proto_reason, 899 NULL, 0, false, GFP_KERNEL); 900 } 901 902 vif->sme_state = SME_DISCONNECTED; 903 904 /* 905 * Send a disconnect command to target when a disconnect event is 906 * received with reason code other than 3 (DISCONNECT_CMD - disconnect 907 * request from host) to make the firmware stop trying to connect even 908 * after giving disconnect event. There will be one more disconnect 909 * event for this disconnect command with reason code DISCONNECT_CMD 910 * which won't be notified to cfg80211. 911 */ 912 if (reason != DISCONNECT_CMD) 913 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 914} 915 916static int ath6kl_set_probed_ssids(struct ath6kl *ar, 917 struct ath6kl_vif *vif, 918 struct cfg80211_ssid *ssids, int n_ssids, 919 struct cfg80211_match_set *match_set, 920 int n_match_ssid) 921{ 922 u8 i, j, index_to_add, ssid_found = false; 923 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; 924 925 memset(ssid_list, 0, sizeof(ssid_list)); 926 927 if (n_ssids > MAX_PROBED_SSIDS || 928 n_match_ssid > MAX_PROBED_SSIDS) 929 return -EINVAL; 930 931 for (i = 0; i < n_ssids; i++) { 932 memcpy(ssid_list[i].ssid.ssid, 933 ssids[i].ssid, 934 ssids[i].ssid_len); 935 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; 936 937 if (ssids[i].ssid_len) 938 ssid_list[i].flag = SPECIFIC_SSID_FLAG; 939 else 940 ssid_list[i].flag = ANY_SSID_FLAG; 941 942 if (ar->wiphy->max_match_sets != 0 && n_match_ssid == 0) 943 ssid_list[i].flag |= MATCH_SSID_FLAG; 944 } 945 946 index_to_add = i; 947 948 for (i = 0; i < n_match_ssid; i++) { 949 ssid_found = false; 950 951 for (j = 0; j < n_ssids; j++) { 952 if ((match_set[i].ssid.ssid_len == 953 ssid_list[j].ssid.ssid_len) && 954 (!memcmp(ssid_list[j].ssid.ssid, 955 match_set[i].ssid.ssid, 956 match_set[i].ssid.ssid_len))) { 957 ssid_list[j].flag |= MATCH_SSID_FLAG; 958 ssid_found = true; 959 break; 960 } 961 } 962 963 if (ssid_found) 964 continue; 965 966 if (index_to_add >= MAX_PROBED_SSIDS) 967 continue; 968 969 ssid_list[index_to_add].ssid.ssid_len = 970 match_set[i].ssid.ssid_len; 971 memcpy(ssid_list[index_to_add].ssid.ssid, 972 match_set[i].ssid.ssid, 973 match_set[i].ssid.ssid_len); 974 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; 975 index_to_add++; 976 } 977 978 for (i = 0; i < index_to_add; i++) { 979 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 980 ssid_list[i].flag, 981 ssid_list[i].ssid.ssid_len, 982 ssid_list[i].ssid.ssid); 983 } 984 985 /* Make sure no old entries are left behind */ 986 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { 987 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, 988 DISABLE_SSID_FLAG, 0, NULL); 989 } 990 991 return 0; 992} 993 994static int ath6kl_cfg80211_scan(struct wiphy *wiphy, 995 struct cfg80211_scan_request *request) 996{ 997 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); 998 struct ath6kl *ar = ath6kl_priv(vif->ndev); 999 s8 n_channels = 0; 1000 u16 *channels = NULL; 1001 int ret = 0; 1002 u32 force_fg_scan = 0; 1003 1004 if (!ath6kl_cfg80211_ready(vif)) 1005 return -EIO; 1006 1007 ath6kl_cfg80211_sscan_disable(vif); 1008 1009 if (!ar->usr_bss_filter) { 1010 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 1011 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1012 ALL_BSS_FILTER, 0); 1013 if (ret) { 1014 ath6kl_err("couldn't set bss filtering\n"); 1015 return ret; 1016 } 1017 } 1018 1019 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 1020 request->n_ssids, NULL, 0); 1021 if (ret < 0) 1022 return ret; 1023 1024 /* this also clears IE in fw if it's not set */ 1025 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 1026 WMI_FRAME_PROBE_REQ, 1027 request->ie, request->ie_len); 1028 if (ret) { 1029 ath6kl_err("failed to set Probe Request appie for scan\n"); 1030 return ret; 1031 } 1032 1033 /* 1034 * Scan only the requested channels if the request specifies a set of 1035 * channels. If the list is longer than the target supports, do not 1036 * configure the list and instead, scan all available channels. 1037 */ 1038 if (request->n_channels > 0 && 1039 request->n_channels <= WMI_MAX_CHANNELS) { 1040 u8 i; 1041 1042 n_channels = request->n_channels; 1043 1044 channels = kcalloc(n_channels, sizeof(u16), GFP_KERNEL); 1045 if (channels == NULL) { 1046 ath6kl_warn("failed to set scan channels, scan all channels"); 1047 n_channels = 0; 1048 } 1049 1050 for (i = 0; i < n_channels; i++) 1051 channels[i] = request->channels[i]->center_freq; 1052 } 1053 1054 if (test_bit(CONNECTED, &vif->flags)) 1055 force_fg_scan = 1; 1056 1057 vif->scan_req = request; 1058 1059 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, 1060 WMI_LONG_SCAN, force_fg_scan, 1061 false, 0, 1062 ATH6KL_FG_SCAN_INTERVAL, 1063 n_channels, channels, 1064 request->no_cck, 1065 request->rates); 1066 if (ret) { 1067 ath6kl_err("failed to start scan: %d\n", ret); 1068 vif->scan_req = NULL; 1069 } 1070 1071 kfree(channels); 1072 1073 return ret; 1074} 1075 1076void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) 1077{ 1078 struct ath6kl *ar = vif->ar; 1079 struct cfg80211_scan_info info = { 1080 .aborted = aborted, 1081 }; 1082 int i; 1083 1084 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, 1085 aborted ? " aborted" : ""); 1086 1087 if (!vif->scan_req) 1088 return; 1089 1090 if (aborted) 1091 goto out; 1092 1093 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { 1094 for (i = 0; i < vif->scan_req->n_ssids; i++) { 1095 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, 1096 i, DISABLE_SSID_FLAG, 1097 0, NULL); 1098 } 1099 } 1100 1101out: 1102 cfg80211_scan_done(vif->scan_req, &info); 1103 vif->scan_req = NULL; 1104} 1105 1106void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, 1107 enum wmi_phy_mode mode) 1108{ 1109 struct cfg80211_chan_def chandef; 1110 1111 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1112 "channel switch notify nw_type %d freq %d mode %d\n", 1113 vif->nw_type, freq, mode); 1114 1115 cfg80211_chandef_create(&chandef, 1116 ieee80211_get_channel(vif->ar->wiphy, freq), 1117 (mode == WMI_11G_HT20 && 1118 ath6kl_band_2ghz.ht_cap.ht_supported) ? 1119 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); 1120 1121 wiphy_lock(vif->ar->wiphy); 1122 cfg80211_ch_switch_notify(vif->ndev, &chandef, 0); 1123 wiphy_unlock(vif->ar->wiphy); 1124} 1125 1126static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, 1127 int link_id, u8 key_index, bool pairwise, 1128 const u8 *mac_addr, 1129 struct key_params *params) 1130{ 1131 struct ath6kl *ar = ath6kl_priv(ndev); 1132 struct ath6kl_vif *vif = netdev_priv(ndev); 1133 struct ath6kl_key *key = NULL; 1134 int seq_len; 1135 u8 key_usage; 1136 u8 key_type; 1137 1138 if (!ath6kl_cfg80211_ready(vif)) 1139 return -EIO; 1140 1141 if (params->cipher == CCKM_KRK_CIPHER_SUITE) { 1142 if (params->key_len != WMI_KRK_LEN) 1143 return -EINVAL; 1144 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, 1145 params->key); 1146 } 1147 1148 if (key_index > WMI_MAX_KEY_INDEX) { 1149 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1150 "%s: key index %d out of bounds\n", __func__, 1151 key_index); 1152 return -ENOENT; 1153 } 1154 1155 key = &vif->keys[key_index]; 1156 memset(key, 0, sizeof(struct ath6kl_key)); 1157 1158 if (pairwise) 1159 key_usage = PAIRWISE_USAGE; 1160 else 1161 key_usage = GROUP_USAGE; 1162 1163 seq_len = params->seq_len; 1164 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && 1165 seq_len > ATH6KL_KEY_SEQ_LEN) { 1166 /* Only first half of the WPI PN is configured */ 1167 seq_len = ATH6KL_KEY_SEQ_LEN; 1168 } 1169 if (params->key_len > WLAN_MAX_KEY_LEN || 1170 seq_len > sizeof(key->seq)) 1171 return -EINVAL; 1172 1173 key->key_len = params->key_len; 1174 memcpy(key->key, params->key, key->key_len); 1175 key->seq_len = seq_len; 1176 memcpy(key->seq, params->seq, key->seq_len); 1177 key->cipher = params->cipher; 1178 1179 switch (key->cipher) { 1180 case WLAN_CIPHER_SUITE_WEP40: 1181 case WLAN_CIPHER_SUITE_WEP104: 1182 key_type = WEP_CRYPT; 1183 break; 1184 1185 case WLAN_CIPHER_SUITE_TKIP: 1186 key_type = TKIP_CRYPT; 1187 break; 1188 1189 case WLAN_CIPHER_SUITE_CCMP: 1190 key_type = AES_CRYPT; 1191 break; 1192 case WLAN_CIPHER_SUITE_SMS4: 1193 key_type = WAPI_CRYPT; 1194 break; 1195 1196 default: 1197 return -ENOTSUPP; 1198 } 1199 1200 if (((vif->auth_mode == WPA_PSK_AUTH) || 1201 (vif->auth_mode == WPA2_PSK_AUTH)) && 1202 (key_usage & GROUP_USAGE)) 1203 timer_delete(&vif->disconnect_timer); 1204 1205 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1206 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", 1207 __func__, key_index, key->key_len, key_type, 1208 key_usage, key->seq_len); 1209 1210 if (vif->nw_type == AP_NETWORK && !pairwise && 1211 (key_type == TKIP_CRYPT || key_type == AES_CRYPT || 1212 key_type == WAPI_CRYPT)) { 1213 ar->ap_mode_bkey.valid = true; 1214 ar->ap_mode_bkey.key_index = key_index; 1215 ar->ap_mode_bkey.key_type = key_type; 1216 ar->ap_mode_bkey.key_len = key->key_len; 1217 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); 1218 if (!test_bit(CONNECTED, &vif->flags)) { 1219 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1220 "Delay initial group key configuration until AP mode has been started\n"); 1221 /* 1222 * The key will be set in ath6kl_connect_ap_mode() once 1223 * the connected event is received from the target. 1224 */ 1225 return 0; 1226 } 1227 } 1228 1229 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && 1230 !test_bit(CONNECTED, &vif->flags)) { 1231 /* 1232 * Store the key locally so that it can be re-configured after 1233 * the AP mode has properly started 1234 * (ath6kl_install_statioc_wep_keys). 1235 */ 1236 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1237 "Delay WEP key configuration until AP mode has been started\n"); 1238 vif->wep_key_list[key_index].key_len = key->key_len; 1239 memcpy(vif->wep_key_list[key_index].key, key->key, 1240 key->key_len); 1241 return 0; 1242 } 1243 1244 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, 1245 key_type, key_usage, key->key_len, 1246 key->seq, key->seq_len, key->key, 1247 KEY_OP_INIT_VAL, 1248 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); 1249} 1250 1251static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, 1252 int link_id, u8 key_index, bool pairwise, 1253 const u8 *mac_addr) 1254{ 1255 struct ath6kl *ar = ath6kl_priv(ndev); 1256 struct ath6kl_vif *vif = netdev_priv(ndev); 1257 1258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1259 1260 if (!ath6kl_cfg80211_ready(vif)) 1261 return -EIO; 1262 1263 if (key_index > WMI_MAX_KEY_INDEX) { 1264 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1265 "%s: key index %d out of bounds\n", __func__, 1266 key_index); 1267 return -ENOENT; 1268 } 1269 1270 if (!vif->keys[key_index].key_len) { 1271 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1272 "%s: index %d is empty\n", __func__, key_index); 1273 return 0; 1274 } 1275 1276 vif->keys[key_index].key_len = 0; 1277 1278 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index); 1279} 1280 1281static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, 1282 int link_id, u8 key_index, bool pairwise, 1283 const u8 *mac_addr, void *cookie, 1284 void (*callback) (void *cookie, 1285 struct key_params *)) 1286{ 1287 struct ath6kl_vif *vif = netdev_priv(ndev); 1288 struct ath6kl_key *key = NULL; 1289 struct key_params params; 1290 1291 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1292 1293 if (!ath6kl_cfg80211_ready(vif)) 1294 return -EIO; 1295 1296 if (key_index > WMI_MAX_KEY_INDEX) { 1297 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1298 "%s: key index %d out of bounds\n", __func__, 1299 key_index); 1300 return -ENOENT; 1301 } 1302 1303 key = &vif->keys[key_index]; 1304 memset(¶ms, 0, sizeof(params)); 1305 params.cipher = key->cipher; 1306 params.key_len = key->key_len; 1307 params.seq_len = key->seq_len; 1308 params.seq = key->seq; 1309 params.key = key->key; 1310 1311 callback(cookie, ¶ms); 1312 1313 return key->key_len ? 0 : -ENOENT; 1314} 1315 1316static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, 1317 struct net_device *ndev, int link_id, 1318 u8 key_index, bool unicast, 1319 bool multicast) 1320{ 1321 struct ath6kl *ar = ath6kl_priv(ndev); 1322 struct ath6kl_vif *vif = netdev_priv(ndev); 1323 struct ath6kl_key *key = NULL; 1324 u8 key_usage; 1325 enum ath6kl_crypto_type key_type = NONE_CRYPT; 1326 1327 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); 1328 1329 if (!ath6kl_cfg80211_ready(vif)) 1330 return -EIO; 1331 1332 if (key_index > WMI_MAX_KEY_INDEX) { 1333 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1334 "%s: key index %d out of bounds\n", 1335 __func__, key_index); 1336 return -ENOENT; 1337 } 1338 1339 if (!vif->keys[key_index].key_len) { 1340 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", 1341 __func__, key_index); 1342 return -EINVAL; 1343 } 1344 1345 vif->def_txkey_index = key_index; 1346 key = &vif->keys[vif->def_txkey_index]; 1347 key_usage = GROUP_USAGE; 1348 if (vif->prwise_crypto == WEP_CRYPT) 1349 key_usage |= TX_USAGE; 1350 if (unicast) 1351 key_type = vif->prwise_crypto; 1352 if (multicast) 1353 key_type = vif->grp_crypto; 1354 1355 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) 1356 return 0; /* Delay until AP mode has been started */ 1357 1358 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, 1359 vif->def_txkey_index, 1360 key_type, key_usage, 1361 key->key_len, key->seq, key->seq_len, 1362 key->key, 1363 KEY_OP_INIT_VAL, NULL, 1364 SYNC_BOTH_WMIFLAG); 1365} 1366 1367void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, 1368 bool ismcast) 1369{ 1370 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1371 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); 1372 1373 cfg80211_michael_mic_failure(vif->ndev, vif->bssid, 1374 (ismcast ? NL80211_KEYTYPE_GROUP : 1375 NL80211_KEYTYPE_PAIRWISE), keyid, NULL, 1376 GFP_KERNEL); 1377} 1378 1379static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx, 1380 u32 changed) 1381{ 1382 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1383 struct ath6kl_vif *vif; 1384 int ret; 1385 1386 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, 1387 changed); 1388 1389 vif = ath6kl_vif_first(ar); 1390 if (!vif) 1391 return -EIO; 1392 1393 if (!ath6kl_cfg80211_ready(vif)) 1394 return -EIO; 1395 1396 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1397 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); 1398 if (ret != 0) { 1399 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); 1400 return -EIO; 1401 } 1402 } 1403 1404 return 0; 1405} 1406 1407static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, 1408 struct wireless_dev *wdev, 1409 int radio_idx, 1410 enum nl80211_tx_power_setting type, 1411 int mbm) 1412{ 1413 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1414 struct ath6kl_vif *vif; 1415 int dbm = MBM_TO_DBM(mbm); 1416 1417 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, 1418 type, dbm); 1419 1420 vif = ath6kl_vif_first(ar); 1421 if (!vif) 1422 return -EIO; 1423 1424 if (!ath6kl_cfg80211_ready(vif)) 1425 return -EIO; 1426 1427 switch (type) { 1428 case NL80211_TX_POWER_AUTOMATIC: 1429 return 0; 1430 case NL80211_TX_POWER_LIMITED: 1431 ar->tx_pwr = dbm; 1432 break; 1433 default: 1434 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", 1435 __func__, type); 1436 return -EOPNOTSUPP; 1437 } 1438 1439 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm); 1440 1441 return 0; 1442} 1443 1444static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 1445 struct wireless_dev *wdev, 1446 int radio_idx, 1447 unsigned int link_id, 1448 int *dbm) 1449{ 1450 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); 1451 struct ath6kl_vif *vif; 1452 1453 vif = ath6kl_vif_first(ar); 1454 if (!vif) 1455 return -EIO; 1456 1457 if (!ath6kl_cfg80211_ready(vif)) 1458 return -EIO; 1459 1460 if (test_bit(CONNECTED, &vif->flags)) { 1461 ar->tx_pwr = 255; 1462 1463 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { 1464 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); 1465 return -EIO; 1466 } 1467 1468 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255, 1469 5 * HZ); 1470 1471 if (signal_pending(current)) { 1472 ath6kl_err("target did not respond\n"); 1473 return -EINTR; 1474 } 1475 } 1476 1477 *dbm = ar->tx_pwr; 1478 return 0; 1479} 1480 1481static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, 1482 struct net_device *dev, 1483 bool pmgmt, int timeout) 1484{ 1485 struct ath6kl *ar = ath6kl_priv(dev); 1486 struct wmi_power_mode_cmd mode; 1487 struct ath6kl_vif *vif = netdev_priv(dev); 1488 1489 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", 1490 __func__, pmgmt, timeout); 1491 1492 if (!ath6kl_cfg80211_ready(vif)) 1493 return -EIO; 1494 1495 if (pmgmt) { 1496 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); 1497 mode.pwr_mode = REC_POWER; 1498 } else { 1499 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); 1500 mode.pwr_mode = MAX_PERF_POWER; 1501 } 1502 1503 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, 1504 mode.pwr_mode) != 0) { 1505 ath6kl_err("wmi_powermode_cmd failed\n"); 1506 return -EIO; 1507 } 1508 1509 return 0; 1510} 1511 1512static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, 1513 const char *name, 1514 unsigned char name_assign_type, 1515 enum nl80211_iftype type, 1516 struct vif_params *params) 1517{ 1518 struct ath6kl *ar = wiphy_priv(wiphy); 1519 struct wireless_dev *wdev; 1520 u8 if_idx, nw_type; 1521 1522 if (ar->num_vif == ar->vif_max) { 1523 ath6kl_err("Reached maximum number of supported vif\n"); 1524 return ERR_PTR(-EINVAL); 1525 } 1526 1527 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { 1528 ath6kl_err("Not a supported interface type\n"); 1529 return ERR_PTR(-EINVAL); 1530 } 1531 1532 wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type); 1533 if (!wdev) 1534 return ERR_PTR(-ENOMEM); 1535 1536 ar->num_vif++; 1537 1538 return wdev; 1539} 1540 1541static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, 1542 struct wireless_dev *wdev) 1543{ 1544 struct ath6kl *ar = wiphy_priv(wiphy); 1545 struct ath6kl_vif *vif = netdev_priv(wdev->netdev); 1546 1547 spin_lock_bh(&ar->list_lock); 1548 list_del(&vif->list); 1549 spin_unlock_bh(&ar->list_lock); 1550 1551 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); 1552 1553 rtnl_lock(); 1554 ath6kl_cfg80211_vif_cleanup(vif); 1555 rtnl_unlock(); 1556 1557 return 0; 1558} 1559 1560static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, 1561 struct net_device *ndev, 1562 enum nl80211_iftype type, 1563 struct vif_params *params) 1564{ 1565 struct ath6kl_vif *vif = netdev_priv(ndev); 1566 int i; 1567 1568 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); 1569 1570 /* 1571 * Don't bring up p2p on an interface which is not initialized 1572 * for p2p operation where fw does not have capability to switch 1573 * dynamically between non-p2p and p2p type interface. 1574 */ 1575 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, 1576 vif->ar->fw_capabilities) && 1577 (type == NL80211_IFTYPE_P2P_CLIENT || 1578 type == NL80211_IFTYPE_P2P_GO)) { 1579 if (vif->ar->vif_max == 1) { 1580 if (vif->fw_vif_idx != 0) 1581 return -EINVAL; 1582 else 1583 goto set_iface_type; 1584 } 1585 1586 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { 1587 if (i == vif->fw_vif_idx) 1588 break; 1589 } 1590 1591 if (i == vif->ar->vif_max) { 1592 ath6kl_err("Invalid interface to bring up P2P\n"); 1593 return -EINVAL; 1594 } 1595 } 1596 1597 /* need to clean up enhanced bmiss detection fw state */ 1598 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 1599 1600set_iface_type: 1601 switch (type) { 1602 case NL80211_IFTYPE_STATION: 1603 case NL80211_IFTYPE_P2P_CLIENT: 1604 vif->next_mode = INFRA_NETWORK; 1605 break; 1606 case NL80211_IFTYPE_ADHOC: 1607 vif->next_mode = ADHOC_NETWORK; 1608 break; 1609 case NL80211_IFTYPE_AP: 1610 case NL80211_IFTYPE_P2P_GO: 1611 vif->next_mode = AP_NETWORK; 1612 break; 1613 default: 1614 ath6kl_err("invalid interface type %u\n", type); 1615 return -EOPNOTSUPP; 1616 } 1617 1618 vif->wdev.iftype = type; 1619 1620 return 0; 1621} 1622 1623static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, 1624 struct net_device *dev, 1625 struct cfg80211_ibss_params *ibss_param) 1626{ 1627 struct ath6kl *ar = ath6kl_priv(dev); 1628 struct ath6kl_vif *vif = netdev_priv(dev); 1629 int status; 1630 1631 if (!ath6kl_cfg80211_ready(vif)) 1632 return -EIO; 1633 1634 vif->ssid_len = ibss_param->ssid_len; 1635 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); 1636 1637 if (ibss_param->chandef.chan) 1638 vif->ch_hint = ibss_param->chandef.chan->center_freq; 1639 1640 if (ibss_param->channel_fixed) { 1641 /* 1642 * TODO: channel_fixed: The channel should be fixed, do not 1643 * search for IBSSs to join on other channels. Target 1644 * firmware does not support this feature, needs to be 1645 * updated. 1646 */ 1647 return -EOPNOTSUPP; 1648 } 1649 1650 memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); 1651 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) 1652 memcpy(vif->req_bssid, ibss_param->bssid, 1653 sizeof(vif->req_bssid)); 1654 1655 ath6kl_set_wpa_version(vif, 0); 1656 1657 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); 1658 if (status) 1659 return status; 1660 1661 if (ibss_param->privacy) { 1662 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); 1663 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); 1664 } else { 1665 ath6kl_set_cipher(vif, 0, true); 1666 ath6kl_set_cipher(vif, 0, false); 1667 } 1668 1669 vif->nw_type = vif->next_mode; 1670 1671 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1672 "%s: connect called with authmode %d dot11 auth %d" 1673 " PW crypto %d PW crypto len %d GRP crypto %d" 1674 " GRP crypto len %d channel hint %u\n", 1675 __func__, 1676 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, 1677 vif->prwise_crypto_len, vif->grp_crypto, 1678 vif->grp_crypto_len, vif->ch_hint); 1679 1680 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, 1681 vif->dot11_auth_mode, vif->auth_mode, 1682 vif->prwise_crypto, 1683 vif->prwise_crypto_len, 1684 vif->grp_crypto, vif->grp_crypto_len, 1685 vif->ssid_len, vif->ssid, 1686 vif->req_bssid, vif->ch_hint, 1687 ar->connect_ctrl_flags, SUBTYPE_NONE); 1688 set_bit(CONNECT_PEND, &vif->flags); 1689 1690 return 0; 1691} 1692 1693static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, 1694 struct net_device *dev) 1695{ 1696 struct ath6kl_vif *vif = netdev_priv(dev); 1697 1698 if (!ath6kl_cfg80211_ready(vif)) 1699 return -EIO; 1700 1701 ath6kl_disconnect(vif); 1702 memset(vif->ssid, 0, sizeof(vif->ssid)); 1703 vif->ssid_len = 0; 1704 1705 return 0; 1706} 1707 1708static const u32 cipher_suites[] = { 1709 WLAN_CIPHER_SUITE_WEP40, 1710 WLAN_CIPHER_SUITE_WEP104, 1711 WLAN_CIPHER_SUITE_TKIP, 1712 WLAN_CIPHER_SUITE_CCMP, 1713 CCKM_KRK_CIPHER_SUITE, 1714 WLAN_CIPHER_SUITE_SMS4, 1715}; 1716 1717static bool is_rate_legacy(s32 rate) 1718{ 1719 static const s32 legacy[] = { 1000, 2000, 5500, 11000, 1720 6000, 9000, 12000, 18000, 24000, 1721 36000, 48000, 54000 1722 }; 1723 u8 i; 1724 1725 for (i = 0; i < ARRAY_SIZE(legacy); i++) 1726 if (rate == legacy[i]) 1727 return true; 1728 1729 return false; 1730} 1731 1732static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) 1733{ 1734 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, 1735 52000, 58500, 65000, 72200 1736 }; 1737 u8 i; 1738 1739 for (i = 0; i < ARRAY_SIZE(ht20); i++) { 1740 if (rate == ht20[i]) { 1741 if (i == ARRAY_SIZE(ht20) - 1) 1742 /* last rate uses sgi */ 1743 *sgi = true; 1744 else 1745 *sgi = false; 1746 1747 *mcs = i; 1748 return true; 1749 } 1750 } 1751 return false; 1752} 1753 1754static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) 1755{ 1756 static const s32 ht40[] = { 13500, 27000, 40500, 54000, 1757 81000, 108000, 121500, 135000, 1758 150000 1759 }; 1760 u8 i; 1761 1762 for (i = 0; i < ARRAY_SIZE(ht40); i++) { 1763 if (rate == ht40[i]) { 1764 if (i == ARRAY_SIZE(ht40) - 1) 1765 /* last rate uses sgi */ 1766 *sgi = true; 1767 else 1768 *sgi = false; 1769 1770 *mcs = i; 1771 return true; 1772 } 1773 } 1774 1775 return false; 1776} 1777 1778static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, 1779 const u8 *mac, struct station_info *sinfo) 1780{ 1781 struct ath6kl *ar = ath6kl_priv(dev); 1782 struct ath6kl_vif *vif = netdev_priv(dev); 1783 long left; 1784 bool sgi; 1785 s32 rate; 1786 int ret; 1787 u8 mcs; 1788 1789 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) 1790 return -ENOENT; 1791 1792 if (down_interruptible(&ar->sem)) 1793 return -EBUSY; 1794 1795 set_bit(STATS_UPDATE_PEND, &vif->flags); 1796 1797 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); 1798 1799 if (ret != 0) { 1800 up(&ar->sem); 1801 return -EIO; 1802 } 1803 1804 left = wait_event_interruptible_timeout(ar->event_wq, 1805 !test_bit(STATS_UPDATE_PEND, 1806 &vif->flags), 1807 WMI_TIMEOUT); 1808 1809 up(&ar->sem); 1810 1811 if (left == 0) 1812 return -ETIMEDOUT; 1813 else if (left < 0) 1814 return left; 1815 1816 if (vif->target_stats.rx_byte) { 1817 sinfo->rx_bytes = vif->target_stats.rx_byte; 1818 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64); 1819 sinfo->rx_packets = vif->target_stats.rx_pkt; 1820 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS); 1821 } 1822 1823 if (vif->target_stats.tx_byte) { 1824 sinfo->tx_bytes = vif->target_stats.tx_byte; 1825 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64); 1826 sinfo->tx_packets = vif->target_stats.tx_pkt; 1827 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS); 1828 } 1829 1830 sinfo->signal = vif->target_stats.cs_rssi; 1831 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 1832 1833 rate = vif->target_stats.tx_ucast_rate; 1834 1835 if (is_rate_legacy(rate)) { 1836 sinfo->txrate.legacy = rate / 100; 1837 } else if (is_rate_ht20(rate, &mcs, &sgi)) { 1838 if (sgi) { 1839 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1840 sinfo->txrate.mcs = mcs - 1; 1841 } else { 1842 sinfo->txrate.mcs = mcs; 1843 } 1844 1845 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1846 sinfo->txrate.bw = RATE_INFO_BW_20; 1847 } else if (is_rate_ht40(rate, &mcs, &sgi)) { 1848 if (sgi) { 1849 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 1850 sinfo->txrate.mcs = mcs - 1; 1851 } else { 1852 sinfo->txrate.mcs = mcs; 1853 } 1854 1855 sinfo->txrate.bw = RATE_INFO_BW_40; 1856 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 1857 } else { 1858 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 1859 "invalid rate from stats: %d\n", rate); 1860 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); 1861 return 0; 1862 } 1863 1864 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 1865 1866 if (test_bit(CONNECTED, &vif->flags) && 1867 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && 1868 vif->nw_type == INFRA_NETWORK) { 1869 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 1870 sinfo->bss_param.flags = 0; 1871 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; 1872 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; 1873 } 1874 1875 return 0; 1876} 1877 1878static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1879 struct cfg80211_pmksa *pmksa) 1880{ 1881 struct ath6kl *ar = ath6kl_priv(netdev); 1882 struct ath6kl_vif *vif = netdev_priv(netdev); 1883 1884 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1885 pmksa->pmkid, true); 1886} 1887 1888static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 1889 struct cfg80211_pmksa *pmksa) 1890{ 1891 struct ath6kl *ar = ath6kl_priv(netdev); 1892 struct ath6kl_vif *vif = netdev_priv(netdev); 1893 1894 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, 1895 pmksa->pmkid, false); 1896} 1897 1898static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 1899{ 1900 struct ath6kl *ar = ath6kl_priv(netdev); 1901 struct ath6kl_vif *vif = netdev_priv(netdev); 1902 1903 if (test_bit(CONNECTED, &vif->flags)) 1904 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 1905 vif->bssid, NULL, false); 1906 return 0; 1907} 1908 1909static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, 1910 struct cfg80211_wowlan *wow, u32 *filter) 1911{ 1912 int ret, pos; 1913 u8 mask[WOW_PATTERN_SIZE]; 1914 u16 i; 1915 1916 /* Configure the patterns that we received from the user. */ 1917 for (i = 0; i < wow->n_patterns; i++) { 1918 /* 1919 * Convert given nl80211 specific mask value to equivalent 1920 * driver specific mask value and send it to the chip along 1921 * with patterns. For example, If the mask value defined in 1922 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), 1923 * then equivalent driver specific mask value is 1924 * "0xFF 0x00 0xFF 0x00". 1925 */ 1926 memset(&mask, 0, sizeof(mask)); 1927 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { 1928 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) 1929 mask[pos] = 0xFF; 1930 } 1931 /* 1932 * Note: Pattern's offset is not passed as part of wowlan 1933 * parameter from CFG layer. So it's always passed as ZERO 1934 * to the firmware. It means, given WOW patterns are always 1935 * matched from the first byte of received pkt in the firmware. 1936 */ 1937 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1938 vif->fw_vif_idx, WOW_LIST_ID, 1939 wow->patterns[i].pattern_len, 1940 0 /* pattern offset */, 1941 wow->patterns[i].pattern, mask); 1942 if (ret) 1943 return ret; 1944 } 1945 1946 if (wow->disconnect) 1947 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; 1948 1949 if (wow->magic_pkt) 1950 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; 1951 1952 if (wow->gtk_rekey_failure) 1953 *filter |= WOW_FILTER_OPTION_GTK_ERROR; 1954 1955 if (wow->eap_identity_req) 1956 *filter |= WOW_FILTER_OPTION_EAP_REQ; 1957 1958 if (wow->four_way_handshake) 1959 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; 1960 1961 return 0; 1962} 1963 1964static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) 1965{ 1966 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, 1967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1969 0x00, 0x08 }; 1970 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, 1971 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1972 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1973 0x00, 0x7f }; 1974 u8 unicst_offset = 0; 1975 static const u8 arp_pattern[] = { 0x08, 0x06 }; 1976 static const u8 arp_mask[] = { 0xff, 0xff }; 1977 u8 arp_offset = 20; 1978 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 1979 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 1980 u8 discvr_offset = 38; 1981 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, 1982 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1983 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 1984 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1985 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1986 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; 1987 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, 1988 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1989 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 1990 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1991 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 1992 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; 1993 u8 dhcp_offset = 0; 1994 int ret; 1995 1996 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ 1997 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 1998 vif->fw_vif_idx, WOW_LIST_ID, 1999 sizeof(unicst_pattern), unicst_offset, 2000 unicst_pattern, unicst_mask); 2001 if (ret) { 2002 ath6kl_err("failed to add WOW unicast IP pattern\n"); 2003 return ret; 2004 } 2005 2006 /* Setup all ARP pkt pattern */ 2007 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2008 vif->fw_vif_idx, WOW_LIST_ID, 2009 sizeof(arp_pattern), arp_offset, 2010 arp_pattern, arp_mask); 2011 if (ret) { 2012 ath6kl_err("failed to add WOW ARP pattern\n"); 2013 return ret; 2014 } 2015 2016 /* 2017 * Setup multicast pattern for mDNS 224.0.0.251, 2018 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2019 */ 2020 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2021 vif->fw_vif_idx, WOW_LIST_ID, 2022 sizeof(discvr_pattern), discvr_offset, 2023 discvr_pattern, discvr_mask); 2024 if (ret) { 2025 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2026 return ret; 2027 } 2028 2029 /* Setup all DHCP broadcast pkt pattern */ 2030 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2031 vif->fw_vif_idx, WOW_LIST_ID, 2032 sizeof(dhcp_pattern), dhcp_offset, 2033 dhcp_pattern, dhcp_mask); 2034 if (ret) { 2035 ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); 2036 return ret; 2037 } 2038 2039 return 0; 2040} 2041 2042static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) 2043{ 2044 struct net_device *ndev = vif->ndev; 2045 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; 2046 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; 2047 u8 discvr_offset = 38; 2048 u8 mac_mask[ETH_ALEN]; 2049 int ret; 2050 2051 /* Setup unicast pkt pattern */ 2052 eth_broadcast_addr(mac_mask); 2053 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2054 vif->fw_vif_idx, WOW_LIST_ID, 2055 ETH_ALEN, 0, ndev->dev_addr, 2056 mac_mask); 2057 if (ret) { 2058 ath6kl_err("failed to add WOW unicast pattern\n"); 2059 return ret; 2060 } 2061 2062 /* 2063 * Setup multicast pattern for mDNS 224.0.0.251, 2064 * SSDP 239.255.255.250 and LLMNR 224.0.0.252 2065 */ 2066 if ((ndev->flags & IFF_ALLMULTI) || 2067 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { 2068 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, 2069 vif->fw_vif_idx, WOW_LIST_ID, 2070 sizeof(discvr_pattern), discvr_offset, 2071 discvr_pattern, discvr_mask); 2072 if (ret) { 2073 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); 2074 return ret; 2075 } 2076 } 2077 2078 return 0; 2079} 2080 2081static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) 2082{ 2083 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2084} 2085 2086static bool is_ctrl_ep_empty(struct ath6kl *ar) 2087{ 2088 return !ar->tx_pending[ar->ctrl_ep]; 2089} 2090 2091static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) 2092{ 2093 int ret, left; 2094 2095 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); 2096 2097 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2098 ATH6KL_HOST_MODE_ASLEEP); 2099 if (ret) 2100 return ret; 2101 2102 left = wait_event_interruptible_timeout(ar->event_wq, 2103 is_hsleep_mode_procsed(vif), 2104 WMI_TIMEOUT); 2105 if (left == 0) { 2106 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); 2107 ret = -ETIMEDOUT; 2108 } else if (left < 0) { 2109 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", 2110 left); 2111 ret = left; 2112 } 2113 2114 if (ar->tx_pending[ar->ctrl_ep]) { 2115 left = wait_event_interruptible_timeout(ar->event_wq, 2116 is_ctrl_ep_empty(ar), 2117 WMI_TIMEOUT); 2118 if (left == 0) { 2119 ath6kl_warn("clear wmi ctrl data timeout\n"); 2120 ret = -ETIMEDOUT; 2121 } else if (left < 0) { 2122 ath6kl_warn("clear wmi ctrl data failed: %d\n", left); 2123 ret = left; 2124 } 2125 } 2126 2127 return ret; 2128} 2129 2130static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, 2131 struct cfg80211_wowlan *wow, u32 *filter) 2132{ 2133 struct ath6kl *ar = vif->ar; 2134 struct in_device *in_dev; 2135 struct in_ifaddr *ifa; 2136 int ret; 2137 u16 i, bmiss_time; 2138 __be32 ips[MAX_IP_ADDRS]; 2139 u8 index = 0; 2140 2141 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && 2142 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2143 ar->fw_capabilities)) { 2144 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2145 vif->fw_vif_idx, false); 2146 if (ret) 2147 return ret; 2148 } 2149 2150 /* Clear existing WOW patterns */ 2151 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) 2152 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, 2153 WOW_LIST_ID, i); 2154 2155 /* 2156 * Skip the default WOW pattern configuration 2157 * if the driver receives any WOW patterns from 2158 * the user. 2159 */ 2160 if (wow) 2161 ret = ath6kl_wow_usr(ar, vif, wow, filter); 2162 else if (vif->nw_type == AP_NETWORK) 2163 ret = ath6kl_wow_ap(ar, vif); 2164 else 2165 ret = ath6kl_wow_sta(ar, vif); 2166 2167 if (ret) 2168 return ret; 2169 2170 netif_stop_queue(vif->ndev); 2171 2172 if (vif->nw_type != AP_NETWORK) { 2173 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2174 ATH6KL_MAX_WOW_LISTEN_INTL, 2175 0); 2176 if (ret) 2177 return ret; 2178 2179 /* Set listen interval x 15 times as bmiss time */ 2180 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; 2181 if (bmiss_time > ATH6KL_MAX_BMISS_TIME) 2182 bmiss_time = ATH6KL_MAX_BMISS_TIME; 2183 2184 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2185 bmiss_time, 0); 2186 if (ret) 2187 return ret; 2188 2189 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2190 0xFFFF, 0, 0xFFFF, 0, 0, 0, 2191 0, 0, 0, 0); 2192 if (ret) 2193 return ret; 2194 } 2195 2196 /* Setup own IP addr for ARP agent. */ 2197 in_dev = __in_dev_get_rtnl(vif->ndev); 2198 if (!in_dev) 2199 return 0; 2200 2201 ifa = rtnl_dereference(in_dev->ifa_list); 2202 memset(&ips, 0, sizeof(ips)); 2203 2204 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ 2205 while (index < MAX_IP_ADDRS && ifa) { 2206 ips[index] = ifa->ifa_local; 2207 ifa = rtnl_dereference(ifa->ifa_next); 2208 index++; 2209 } 2210 2211 if (ifa) { 2212 ath6kl_err("total IP addr count is exceeding fw limit\n"); 2213 return -EINVAL; 2214 } 2215 2216 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); 2217 if (ret) { 2218 ath6kl_err("fail to setup ip for arp agent\n"); 2219 return ret; 2220 } 2221 2222 return ret; 2223} 2224 2225static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) 2226{ 2227 struct ath6kl_vif *first_vif, *vif; 2228 int ret = 0; 2229 u32 filter = 0; 2230 bool connected = false; 2231 2232 /* enter / leave wow suspend on first vif always */ 2233 first_vif = ath6kl_vif_first(ar); 2234 if (WARN_ON(!first_vif) || 2235 !ath6kl_cfg80211_ready(first_vif)) 2236 return -EIO; 2237 2238 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) 2239 return -EINVAL; 2240 2241 /* install filters for each connected vif */ 2242 spin_lock_bh(&ar->list_lock); 2243 list_for_each_entry(vif, &ar->vif_list, list) { 2244 if (!test_bit(CONNECTED, &vif->flags) || 2245 !ath6kl_cfg80211_ready(vif)) 2246 continue; 2247 connected = true; 2248 2249 ret = ath6kl_wow_suspend_vif(vif, wow, &filter); 2250 if (ret) 2251 break; 2252 } 2253 spin_unlock_bh(&ar->list_lock); 2254 2255 if (!connected) 2256 return -ENOTCONN; 2257 else if (ret) 2258 return ret; 2259 2260 ar->state = ATH6KL_STATE_SUSPENDING; 2261 2262 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, 2263 ATH6KL_WOW_MODE_ENABLE, 2264 filter, 2265 WOW_HOST_REQ_DELAY); 2266 if (ret) 2267 return ret; 2268 2269 return ath6kl_cfg80211_host_sleep(ar, first_vif); 2270} 2271 2272static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) 2273{ 2274 struct ath6kl *ar = vif->ar; 2275 int ret; 2276 2277 if (vif->nw_type != AP_NETWORK) { 2278 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2279 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2280 if (ret) 2281 return ret; 2282 2283 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 2284 vif->listen_intvl_t, 0); 2285 if (ret) 2286 return ret; 2287 2288 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, 2289 vif->bmiss_time_t, 0); 2290 if (ret) 2291 return ret; 2292 } 2293 2294 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && 2295 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 2296 ar->fw_capabilities)) { 2297 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, 2298 vif->fw_vif_idx, true); 2299 if (ret) 2300 return ret; 2301 } 2302 2303 netif_wake_queue(vif->ndev); 2304 2305 return 0; 2306} 2307 2308static int ath6kl_wow_resume(struct ath6kl *ar) 2309{ 2310 struct ath6kl_vif *vif; 2311 int ret; 2312 2313 vif = ath6kl_vif_first(ar); 2314 if (WARN_ON(!vif) || 2315 !ath6kl_cfg80211_ready(vif)) 2316 return -EIO; 2317 2318 ar->state = ATH6KL_STATE_RESUMING; 2319 2320 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2321 ATH6KL_HOST_MODE_AWAKE); 2322 if (ret) { 2323 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", 2324 ret); 2325 goto cleanup; 2326 } 2327 2328 spin_lock_bh(&ar->list_lock); 2329 list_for_each_entry(vif, &ar->vif_list, list) { 2330 if (!test_bit(CONNECTED, &vif->flags) || 2331 !ath6kl_cfg80211_ready(vif)) 2332 continue; 2333 ret = ath6kl_wow_resume_vif(vif); 2334 if (ret) 2335 break; 2336 } 2337 spin_unlock_bh(&ar->list_lock); 2338 2339 if (ret) 2340 goto cleanup; 2341 2342 ar->state = ATH6KL_STATE_ON; 2343 return 0; 2344 2345cleanup: 2346 ar->state = ATH6KL_STATE_WOW; 2347 return ret; 2348} 2349 2350static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) 2351{ 2352 struct ath6kl_vif *vif; 2353 int ret; 2354 2355 vif = ath6kl_vif_first(ar); 2356 if (!vif) 2357 return -EIO; 2358 2359 if (!test_bit(WMI_READY, &ar->flag)) { 2360 ath6kl_err("deepsleep failed as wmi is not ready\n"); 2361 return -EIO; 2362 } 2363 2364 ath6kl_cfg80211_stop_all(ar); 2365 2366 /* Save the current power mode before enabling power save */ 2367 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 2368 2369 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); 2370 if (ret) 2371 return ret; 2372 2373 /* Disable WOW mode */ 2374 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, 2375 ATH6KL_WOW_MODE_DISABLE, 2376 0, 0); 2377 if (ret) 2378 return ret; 2379 2380 /* Flush all non control pkts in TX path */ 2381 ath6kl_tx_data_cleanup(ar); 2382 2383 ret = ath6kl_cfg80211_host_sleep(ar, vif); 2384 if (ret) 2385 return ret; 2386 2387 return 0; 2388} 2389 2390static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) 2391{ 2392 struct ath6kl_vif *vif; 2393 int ret; 2394 2395 vif = ath6kl_vif_first(ar); 2396 2397 if (!vif) 2398 return -EIO; 2399 2400 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { 2401 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, 2402 ar->wmi->saved_pwr_mode); 2403 if (ret) 2404 return ret; 2405 } 2406 2407 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, 2408 ATH6KL_HOST_MODE_AWAKE); 2409 if (ret) 2410 return ret; 2411 2412 ar->state = ATH6KL_STATE_ON; 2413 2414 /* Reset scan parameter to default values */ 2415 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 2416 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); 2417 if (ret) 2418 return ret; 2419 2420 return 0; 2421} 2422 2423int ath6kl_cfg80211_suspend(struct ath6kl *ar, 2424 enum ath6kl_cfg_suspend_mode mode, 2425 struct cfg80211_wowlan *wow) 2426{ 2427 struct ath6kl_vif *vif; 2428 enum ath6kl_state prev_state; 2429 int ret; 2430 2431 switch (mode) { 2432 case ATH6KL_CFG_SUSPEND_WOW: 2433 2434 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); 2435 2436 /* Flush all non control pkts in TX path */ 2437 ath6kl_tx_data_cleanup(ar); 2438 2439 prev_state = ar->state; 2440 2441 ret = ath6kl_wow_suspend(ar, wow); 2442 if (ret) { 2443 ar->state = prev_state; 2444 return ret; 2445 } 2446 2447 ar->state = ATH6KL_STATE_WOW; 2448 break; 2449 2450 case ATH6KL_CFG_SUSPEND_DEEPSLEEP: 2451 2452 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); 2453 2454 ret = ath6kl_cfg80211_deepsleep_suspend(ar); 2455 if (ret) { 2456 ath6kl_err("deepsleep suspend failed: %d\n", ret); 2457 return ret; 2458 } 2459 2460 ar->state = ATH6KL_STATE_DEEPSLEEP; 2461 2462 break; 2463 2464 case ATH6KL_CFG_SUSPEND_CUTPOWER: 2465 2466 ath6kl_cfg80211_stop_all(ar); 2467 2468 if (ar->state == ATH6KL_STATE_OFF) { 2469 ath6kl_dbg(ATH6KL_DBG_SUSPEND, 2470 "suspend hw off, no action for cutpower\n"); 2471 break; 2472 } 2473 2474 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); 2475 2476 ret = ath6kl_init_hw_stop(ar); 2477 if (ret) { 2478 ath6kl_warn("failed to stop hw during suspend: %d\n", 2479 ret); 2480 } 2481 2482 ar->state = ATH6KL_STATE_CUTPOWER; 2483 2484 break; 2485 2486 default: 2487 break; 2488 } 2489 2490 list_for_each_entry(vif, &ar->vif_list, list) 2491 ath6kl_cfg80211_scan_complete_event(vif, true); 2492 2493 return 0; 2494} 2495EXPORT_SYMBOL(ath6kl_cfg80211_suspend); 2496 2497int ath6kl_cfg80211_resume(struct ath6kl *ar) 2498{ 2499 int ret; 2500 2501 switch (ar->state) { 2502 case ATH6KL_STATE_WOW: 2503 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); 2504 2505 ret = ath6kl_wow_resume(ar); 2506 if (ret) { 2507 ath6kl_warn("wow mode resume failed: %d\n", ret); 2508 return ret; 2509 } 2510 2511 break; 2512 2513 case ATH6KL_STATE_DEEPSLEEP: 2514 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); 2515 2516 ret = ath6kl_cfg80211_deepsleep_resume(ar); 2517 if (ret) { 2518 ath6kl_warn("deep sleep resume failed: %d\n", ret); 2519 return ret; 2520 } 2521 break; 2522 2523 case ATH6KL_STATE_CUTPOWER: 2524 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); 2525 2526 ret = ath6kl_init_hw_start(ar); 2527 if (ret) { 2528 ath6kl_warn("Failed to boot hw in resume: %d\n", ret); 2529 return ret; 2530 } 2531 break; 2532 2533 default: 2534 break; 2535 } 2536 2537 return 0; 2538} 2539EXPORT_SYMBOL(ath6kl_cfg80211_resume); 2540 2541#ifdef CONFIG_PM 2542 2543/* hif layer decides what suspend mode to use */ 2544static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, 2545 struct cfg80211_wowlan *wow) 2546{ 2547 struct ath6kl *ar = wiphy_priv(wiphy); 2548 2549 ath6kl_recovery_suspend(ar); 2550 2551 return ath6kl_hif_suspend(ar, wow); 2552} 2553 2554static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) 2555{ 2556 struct ath6kl *ar = wiphy_priv(wiphy); 2557 int err; 2558 2559 err = ath6kl_hif_resume(ar); 2560 if (err) 2561 return err; 2562 2563 ath6kl_recovery_resume(ar); 2564 2565 return 0; 2566} 2567 2568/* 2569 * FIXME: WOW suspend mode is selected if the host sdio controller supports 2570 * both sdio irq wake up and keep power. The target pulls sdio data line to 2571 * wake up the host when WOW pattern matches. This causes sdio irq handler 2572 * is being called in the host side which internally hits ath6kl's RX path. 2573 * 2574 * Since sdio interrupt is not disabled, RX path executes even before 2575 * the host executes the actual resume operation from PM module. 2576 * 2577 * In the current scenario, WOW resume should happen before start processing 2578 * any data from the target. So It's required to perform WOW resume in RX path. 2579 * Ideally we should perform WOW resume only in the actual platform 2580 * resume path. This area needs bit rework to avoid WOW resume in RX path. 2581 * 2582 * ath6kl_check_wow_status() is called from ath6kl_rx(). 2583 */ 2584void ath6kl_check_wow_status(struct ath6kl *ar) 2585{ 2586 if (ar->state == ATH6KL_STATE_SUSPENDING) 2587 return; 2588 2589 if (ar->state == ATH6KL_STATE_WOW) 2590 ath6kl_cfg80211_resume(ar); 2591} 2592 2593#else 2594 2595void ath6kl_check_wow_status(struct ath6kl *ar) 2596{ 2597} 2598#endif 2599 2600static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band, 2601 bool ht_enable) 2602{ 2603 struct ath6kl_htcap *htcap = &vif->htcap[band]; 2604 2605 if (htcap->ht_enable == ht_enable) 2606 return 0; 2607 2608 if (ht_enable) { 2609 /* Set default ht capabilities */ 2610 htcap->ht_enable = true; 2611 htcap->cap_info = (band == NL80211_BAND_2GHZ) ? 2612 ath6kl_g_htcap : ath6kl_a_htcap; 2613 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 2614 } else /* Disable ht */ 2615 memset(htcap, 0, sizeof(*htcap)); 2616 2617 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, 2618 band, htcap); 2619} 2620 2621static int ath6kl_restore_htcap(struct ath6kl_vif *vif) 2622{ 2623 struct wiphy *wiphy = vif->ar->wiphy; 2624 int band, ret = 0; 2625 2626 for (band = 0; band < NUM_NL80211_BANDS; band++) { 2627 if (!wiphy->bands[band]) 2628 continue; 2629 2630 ret = ath6kl_set_htcap(vif, band, 2631 wiphy->bands[band]->ht_cap.ht_supported); 2632 if (ret) 2633 return ret; 2634 } 2635 2636 return ret; 2637} 2638 2639static bool ath6kl_is_p2p_ie(const u8 *pos) 2640{ 2641 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && 2642 pos[2] == 0x50 && pos[3] == 0x6f && 2643 pos[4] == 0x9a && pos[5] == 0x09; 2644} 2645 2646static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, 2647 const u8 *ies, size_t ies_len) 2648{ 2649 struct ath6kl *ar = vif->ar; 2650 const u8 *pos; 2651 u8 *buf = NULL; 2652 size_t len = 0; 2653 int ret; 2654 2655 /* 2656 * Filter out P2P IE(s) since they will be included depending on 2657 * the Probe Request frame in ath6kl_send_go_probe_resp(). 2658 */ 2659 2660 if (ies && ies_len) { 2661 buf = kmalloc(ies_len, GFP_KERNEL); 2662 if (buf == NULL) 2663 return -ENOMEM; 2664 pos = ies; 2665 while (pos + 1 < ies + ies_len) { 2666 if (pos + 2 + pos[1] > ies + ies_len) 2667 break; 2668 if (!ath6kl_is_p2p_ie(pos)) { 2669 memcpy(buf + len, pos, 2 + pos[1]); 2670 len += 2 + pos[1]; 2671 } 2672 pos += 2 + pos[1]; 2673 } 2674 } 2675 2676 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2677 WMI_FRAME_PROBE_RESP, buf, len); 2678 kfree(buf); 2679 return ret; 2680} 2681 2682static int ath6kl_set_ies(struct ath6kl_vif *vif, 2683 struct cfg80211_beacon_data *info) 2684{ 2685 struct ath6kl *ar = vif->ar; 2686 int res; 2687 2688 /* this also clears IE in fw if it's not set */ 2689 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2690 WMI_FRAME_BEACON, 2691 info->beacon_ies, 2692 info->beacon_ies_len); 2693 if (res) 2694 return res; 2695 2696 /* this also clears IE in fw if it's not set */ 2697 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, 2698 info->proberesp_ies_len); 2699 if (res) 2700 return res; 2701 2702 /* this also clears IE in fw if it's not set */ 2703 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 2704 WMI_FRAME_ASSOC_RESP, 2705 info->assocresp_ies, 2706 info->assocresp_ies_len); 2707 if (res) 2708 return res; 2709 2710 return 0; 2711} 2712 2713static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, 2714 u8 *rsn_capab) 2715{ 2716 const u8 *rsn_ie; 2717 size_t rsn_ie_len; 2718 u16 cnt; 2719 2720 if (!beacon->tail) 2721 return -EINVAL; 2722 2723 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); 2724 if (!rsn_ie) 2725 return -EINVAL; 2726 2727 rsn_ie_len = *(rsn_ie + 1); 2728 /* skip element id and length */ 2729 rsn_ie += 2; 2730 2731 /* skip version */ 2732 if (rsn_ie_len < 2) 2733 return -EINVAL; 2734 rsn_ie += 2; 2735 rsn_ie_len -= 2; 2736 2737 /* skip group cipher suite */ 2738 if (rsn_ie_len < 4) 2739 return 0; 2740 rsn_ie += 4; 2741 rsn_ie_len -= 4; 2742 2743 /* skip pairwise cipher suite */ 2744 if (rsn_ie_len < 2) 2745 return 0; 2746 cnt = get_unaligned_le16(rsn_ie); 2747 rsn_ie += (2 + cnt * 4); 2748 rsn_ie_len -= (2 + cnt * 4); 2749 2750 /* skip akm suite */ 2751 if (rsn_ie_len < 2) 2752 return 0; 2753 cnt = get_unaligned_le16(rsn_ie); 2754 rsn_ie += (2 + cnt * 4); 2755 rsn_ie_len -= (2 + cnt * 4); 2756 2757 if (rsn_ie_len < 2) 2758 return 0; 2759 2760 memcpy(rsn_capab, rsn_ie, 2); 2761 2762 return 0; 2763} 2764 2765static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, 2766 struct cfg80211_ap_settings *info) 2767{ 2768 struct ath6kl *ar = ath6kl_priv(dev); 2769 struct ath6kl_vif *vif = netdev_priv(dev); 2770 struct ieee80211_mgmt *mgmt; 2771 bool hidden = false; 2772 u8 *ies; 2773 struct wmi_connect_cmd p; 2774 int res; 2775 int i, ret; 2776 u16 rsn_capab = 0; 2777 int inactivity_timeout = 0; 2778 2779 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); 2780 2781 if (!ath6kl_cfg80211_ready(vif)) 2782 return -EIO; 2783 2784 if (vif->next_mode != AP_NETWORK) 2785 return -EOPNOTSUPP; 2786 2787 res = ath6kl_set_ies(vif, &info->beacon); 2788 2789 ar->ap_mode_bkey.valid = false; 2790 2791 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, 2792 info->beacon_interval); 2793 2794 if (ret) 2795 ath6kl_warn("Failed to set beacon interval: %d\n", ret); 2796 2797 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, 2798 info->dtim_period); 2799 2800 /* ignore error, just print a warning and continue normally */ 2801 if (ret) 2802 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); 2803 2804 if (info->beacon.head == NULL) 2805 return -EINVAL; 2806 mgmt = (struct ieee80211_mgmt *) info->beacon.head; 2807 ies = mgmt->u.beacon.variable; 2808 if (ies > info->beacon.head + info->beacon.head_len) 2809 return -EINVAL; 2810 2811 if (info->ssid == NULL) 2812 return -EINVAL; 2813 memcpy(vif->ssid, info->ssid, info->ssid_len); 2814 vif->ssid_len = info->ssid_len; 2815 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) 2816 hidden = true; 2817 2818 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); 2819 if (res) 2820 return res; 2821 2822 ret = ath6kl_set_auth_type(vif, info->auth_type); 2823 if (ret) 2824 return ret; 2825 2826 memset(&p, 0, sizeof(p)); 2827 2828 for (i = 0; i < info->crypto.n_akm_suites; i++) { 2829 switch (info->crypto.akm_suites[i]) { 2830 case WLAN_AKM_SUITE_8021X: 2831 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2832 p.auth_mode |= WPA_AUTH; 2833 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2834 p.auth_mode |= WPA2_AUTH; 2835 break; 2836 case WLAN_AKM_SUITE_PSK: 2837 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) 2838 p.auth_mode |= WPA_PSK_AUTH; 2839 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) 2840 p.auth_mode |= WPA2_PSK_AUTH; 2841 break; 2842 } 2843 } 2844 if (p.auth_mode == 0) 2845 p.auth_mode = NONE_AUTH; 2846 vif->auth_mode = p.auth_mode; 2847 2848 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { 2849 switch (info->crypto.ciphers_pairwise[i]) { 2850 case WLAN_CIPHER_SUITE_WEP40: 2851 case WLAN_CIPHER_SUITE_WEP104: 2852 p.prwise_crypto_type |= WEP_CRYPT; 2853 break; 2854 case WLAN_CIPHER_SUITE_TKIP: 2855 p.prwise_crypto_type |= TKIP_CRYPT; 2856 break; 2857 case WLAN_CIPHER_SUITE_CCMP: 2858 p.prwise_crypto_type |= AES_CRYPT; 2859 break; 2860 case WLAN_CIPHER_SUITE_SMS4: 2861 p.prwise_crypto_type |= WAPI_CRYPT; 2862 break; 2863 } 2864 } 2865 if (p.prwise_crypto_type == 0) { 2866 p.prwise_crypto_type = NONE_CRYPT; 2867 ath6kl_set_cipher(vif, 0, true); 2868 } else if (info->crypto.n_ciphers_pairwise == 1) { 2869 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); 2870 } 2871 2872 switch (info->crypto.cipher_group) { 2873 case WLAN_CIPHER_SUITE_WEP40: 2874 case WLAN_CIPHER_SUITE_WEP104: 2875 p.grp_crypto_type = WEP_CRYPT; 2876 break; 2877 case WLAN_CIPHER_SUITE_TKIP: 2878 p.grp_crypto_type = TKIP_CRYPT; 2879 break; 2880 case WLAN_CIPHER_SUITE_CCMP: 2881 p.grp_crypto_type = AES_CRYPT; 2882 break; 2883 case WLAN_CIPHER_SUITE_SMS4: 2884 p.grp_crypto_type = WAPI_CRYPT; 2885 break; 2886 default: 2887 p.grp_crypto_type = NONE_CRYPT; 2888 break; 2889 } 2890 ath6kl_set_cipher(vif, info->crypto.cipher_group, false); 2891 2892 p.nw_type = AP_NETWORK; 2893 vif->nw_type = vif->next_mode; 2894 2895 p.ssid_len = vif->ssid_len; 2896 memcpy(p.ssid, vif->ssid, vif->ssid_len); 2897 p.dot11_auth_mode = vif->dot11_auth_mode; 2898 p.ch = cpu_to_le16(info->chandef.chan->center_freq); 2899 2900 /* Enable uAPSD support by default */ 2901 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); 2902 if (res < 0) 2903 return res; 2904 2905 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 2906 p.nw_subtype = SUBTYPE_P2PGO; 2907 } else { 2908 /* 2909 * Due to firmware limitation, it is not possible to 2910 * do P2P mgmt operations in AP mode 2911 */ 2912 p.nw_subtype = SUBTYPE_NONE; 2913 } 2914 2915 if (info->inactivity_timeout) { 2916 inactivity_timeout = info->inactivity_timeout; 2917 2918 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, 2919 ar->fw_capabilities)) 2920 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, 2921 60); 2922 2923 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, 2924 inactivity_timeout); 2925 if (res < 0) 2926 return res; 2927 } 2928 2929 if (ath6kl_set_htcap(vif, info->chandef.chan->band, 2930 cfg80211_get_chandef_type(&info->chandef) 2931 != NL80211_CHAN_NO_HT)) 2932 return -EIO; 2933 2934 /* 2935 * Get the PTKSA replay counter in the RSN IE. Supplicant 2936 * will use the RSN IE in M3 message and firmware has to 2937 * advertise the same in beacon/probe response. Send 2938 * the complete RSN IE capability field to firmware 2939 */ 2940 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && 2941 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 2942 ar->fw_capabilities)) { 2943 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 2944 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 2945 (const u8 *) &rsn_capab, 2946 sizeof(rsn_capab)); 2947 vif->rsn_capab = rsn_capab; 2948 if (res < 0) 2949 return res; 2950 } 2951 2952 memcpy(&vif->profile, &p, sizeof(p)); 2953 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); 2954 if (res < 0) 2955 return res; 2956 2957 return 0; 2958} 2959 2960static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, 2961 struct cfg80211_ap_update *params) 2962{ 2963 struct ath6kl_vif *vif = netdev_priv(dev); 2964 2965 if (!ath6kl_cfg80211_ready(vif)) 2966 return -EIO; 2967 2968 if (vif->next_mode != AP_NETWORK) 2969 return -EOPNOTSUPP; 2970 2971 return ath6kl_set_ies(vif, ¶ms->beacon); 2972} 2973 2974static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev, 2975 unsigned int link_id) 2976{ 2977 struct ath6kl *ar = ath6kl_priv(dev); 2978 struct ath6kl_vif *vif = netdev_priv(dev); 2979 2980 if (vif->nw_type != AP_NETWORK) 2981 return -EOPNOTSUPP; 2982 if (!test_bit(CONNECTED, &vif->flags)) 2983 return -ENOTCONN; 2984 2985 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 2986 clear_bit(CONNECTED, &vif->flags); 2987 netif_carrier_off(vif->ndev); 2988 2989 /* Restore ht setting in firmware */ 2990 return ath6kl_restore_htcap(vif); 2991} 2992 2993static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; 2994 2995static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev, 2996 struct station_del_parameters *params) 2997{ 2998 struct ath6kl *ar = ath6kl_priv(dev); 2999 struct ath6kl_vif *vif = netdev_priv(dev); 3000 const u8 *addr = params->mac ? params->mac : bcast_addr; 3001 3002 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH, 3003 addr, WLAN_REASON_PREV_AUTH_NOT_VALID); 3004} 3005 3006static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, 3007 const u8 *mac, 3008 struct station_parameters *params) 3009{ 3010 struct ath6kl *ar = ath6kl_priv(dev); 3011 struct ath6kl_vif *vif = netdev_priv(dev); 3012 int err; 3013 3014 if (vif->nw_type != AP_NETWORK) 3015 return -EOPNOTSUPP; 3016 3017 err = cfg80211_check_station_change(wiphy, params, 3018 CFG80211_STA_AP_MLME_CLIENT); 3019 if (err) 3020 return err; 3021 3022 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 3023 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3024 WMI_AP_MLME_AUTHORIZE, mac, 0); 3025 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, 3026 WMI_AP_MLME_UNAUTHORIZE, mac, 0); 3027} 3028 3029static int ath6kl_remain_on_channel(struct wiphy *wiphy, 3030 struct wireless_dev *wdev, 3031 struct ieee80211_channel *chan, 3032 unsigned int duration, 3033 u64 *cookie) 3034{ 3035 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3036 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3037 u32 id; 3038 3039 /* TODO: if already pending or ongoing remain-on-channel, 3040 * return -EBUSY */ 3041 id = ++vif->last_roc_id; 3042 if (id == 0) { 3043 /* Do not use 0 as the cookie value */ 3044 id = ++vif->last_roc_id; 3045 } 3046 *cookie = id; 3047 3048 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, 3049 chan->center_freq, duration); 3050} 3051 3052static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, 3053 struct wireless_dev *wdev, 3054 u64 cookie) 3055{ 3056 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3057 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3058 3059 if (cookie != vif->last_roc_id) 3060 return -ENOENT; 3061 vif->last_cancel_roc_id = cookie; 3062 3063 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); 3064} 3065 3066static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, 3067 const u8 *buf, size_t len, 3068 unsigned int freq) 3069{ 3070 struct ath6kl *ar = vif->ar; 3071 const u8 *pos; 3072 u8 *p2p; 3073 int p2p_len; 3074 int ret; 3075 const struct ieee80211_mgmt *mgmt; 3076 3077 mgmt = (const struct ieee80211_mgmt *) buf; 3078 3079 /* Include P2P IE(s) from the frame generated in user space. */ 3080 3081 p2p = kmalloc(len, GFP_KERNEL); 3082 if (p2p == NULL) 3083 return -ENOMEM; 3084 p2p_len = 0; 3085 3086 pos = mgmt->u.probe_resp.variable; 3087 while (pos + 1 < buf + len) { 3088 if (pos + 2 + pos[1] > buf + len) 3089 break; 3090 if (ath6kl_is_p2p_ie(pos)) { 3091 memcpy(p2p + p2p_len, pos, 2 + pos[1]); 3092 p2p_len += 2 + pos[1]; 3093 } 3094 pos += 2 + pos[1]; 3095 } 3096 3097 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, 3098 mgmt->da, p2p, p2p_len); 3099 kfree(p2p); 3100 return ret; 3101} 3102 3103static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif, 3104 u32 id, 3105 u32 freq, 3106 u32 wait, 3107 const u8 *buf, 3108 size_t len, 3109 bool *more_data, 3110 bool no_cck) 3111{ 3112 struct ieee80211_mgmt *mgmt; 3113 struct ath6kl_sta *conn; 3114 bool is_psq_empty = false; 3115 struct ath6kl_mgmt_buff *mgmt_buf; 3116 size_t mgmt_buf_size; 3117 struct ath6kl *ar = vif->ar; 3118 3119 mgmt = (struct ieee80211_mgmt *) buf; 3120 if (is_multicast_ether_addr(mgmt->da)) 3121 return false; 3122 3123 conn = ath6kl_find_sta(vif, mgmt->da); 3124 if (!conn) 3125 return false; 3126 3127 if (conn->sta_flags & STA_PS_SLEEP) { 3128 if (!(conn->sta_flags & STA_PS_POLLED)) { 3129 /* Queue the frames if the STA is sleeping */ 3130 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff); 3131 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL); 3132 if (!mgmt_buf) 3133 return false; 3134 3135 INIT_LIST_HEAD(&mgmt_buf->list); 3136 mgmt_buf->id = id; 3137 mgmt_buf->freq = freq; 3138 mgmt_buf->wait = wait; 3139 mgmt_buf->len = len; 3140 mgmt_buf->no_cck = no_cck; 3141 memcpy(mgmt_buf->buf, buf, len); 3142 spin_lock_bh(&conn->psq_lock); 3143 is_psq_empty = skb_queue_empty(&conn->psq) && 3144 (conn->mgmt_psq_len == 0); 3145 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq); 3146 conn->mgmt_psq_len++; 3147 spin_unlock_bh(&conn->psq_lock); 3148 3149 /* 3150 * If this is the first pkt getting queued 3151 * for this STA, update the PVB for this 3152 * STA. 3153 */ 3154 if (is_psq_empty) 3155 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 3156 conn->aid, 1); 3157 return true; 3158 } 3159 3160 /* 3161 * This tx is because of a PsPoll. 3162 * Determine if MoreData bit has to be set. 3163 */ 3164 spin_lock_bh(&conn->psq_lock); 3165 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0)) 3166 *more_data = true; 3167 spin_unlock_bh(&conn->psq_lock); 3168 } 3169 3170 return false; 3171} 3172 3173/* Check if SSID length is greater than DIRECT- */ 3174static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len) 3175{ 3176 const struct ieee80211_mgmt *mgmt; 3177 mgmt = (const struct ieee80211_mgmt *) buf; 3178 3179 /* variable[1] contains the SSID tag length */ 3180 if (buf + len >= &mgmt->u.probe_resp.variable[1] && 3181 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) { 3182 return true; 3183 } 3184 3185 return false; 3186} 3187 3188static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3189 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 3190{ 3191 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3192 struct ath6kl *ar = ath6kl_priv(vif->ndev); 3193 struct ieee80211_channel *chan = params->chan; 3194 const u8 *buf = params->buf; 3195 size_t len = params->len; 3196 unsigned int wait = params->wait; 3197 bool no_cck = params->no_cck; 3198 u32 id, freq; 3199 const struct ieee80211_mgmt *mgmt; 3200 bool more_data, queued; 3201 3202 /* default to the current channel, but use the one specified as argument 3203 * if any 3204 */ 3205 freq = vif->ch_hint; 3206 if (chan) 3207 freq = chan->center_freq; 3208 3209 /* never send freq zero to the firmware */ 3210 if (WARN_ON(freq == 0)) 3211 return -EINVAL; 3212 3213 mgmt = (const struct ieee80211_mgmt *) buf; 3214 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && 3215 ieee80211_is_probe_resp(mgmt->frame_control) && 3216 ath6kl_is_p2p_go_ssid(buf, len)) { 3217 /* 3218 * Send Probe Response frame in GO mode using a separate WMI 3219 * command to allow the target to fill in the generic IEs. 3220 */ 3221 *cookie = 0; /* TX status not supported */ 3222 return ath6kl_send_go_probe_resp(vif, buf, len, freq); 3223 } 3224 3225 id = vif->send_action_id++; 3226 if (id == 0) { 3227 /* 3228 * 0 is a reserved value in the WMI command and shall not be 3229 * used for the command. 3230 */ 3231 id = vif->send_action_id++; 3232 } 3233 3234 *cookie = id; 3235 3236 /* AP mode Power saving processing */ 3237 if (vif->nw_type == AP_NETWORK) { 3238 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len, 3239 &more_data, no_cck); 3240 if (queued) 3241 return 0; 3242 } 3243 3244 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq, 3245 wait, buf, len, no_cck); 3246} 3247 3248static int ath6kl_get_antenna(struct wiphy *wiphy, int radio_idx, 3249 u32 *tx_ant, u32 *rx_ant) 3250{ 3251 struct ath6kl *ar = wiphy_priv(wiphy); 3252 *tx_ant = ar->hw.tx_ant; 3253 *rx_ant = ar->hw.rx_ant; 3254 return 0; 3255} 3256 3257static void ath6kl_update_mgmt_frame_registrations(struct wiphy *wiphy, 3258 struct wireless_dev *wdev, 3259 struct mgmt_frame_regs *upd) 3260{ 3261 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev); 3262 3263 /* 3264 * FIXME: send WMI_PROBE_REQ_REPORT_CMD here instead of hardcoding 3265 * the reporting in the target all the time, this callback 3266 * *is* allowed to sleep after all. 3267 */ 3268 vif->probe_req_report = 3269 upd->interface_stypes & BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3270} 3271 3272static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy, 3273 struct net_device *dev, 3274 struct cfg80211_sched_scan_request *request) 3275{ 3276 struct ath6kl *ar = ath6kl_priv(dev); 3277 struct ath6kl_vif *vif = netdev_priv(dev); 3278 u16 interval; 3279 int ret, rssi_thold; 3280 int n_match_sets = request->n_match_sets; 3281 3282 /* 3283 * If there's a matchset w/o an SSID, then assume it's just for 3284 * the RSSI (nothing else is currently supported) and ignore it. 3285 * The device only supports a global RSSI filter that we set below. 3286 */ 3287 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len) 3288 n_match_sets = 0; 3289 3290 if (ar->state != ATH6KL_STATE_ON) 3291 return -EIO; 3292 3293 if (vif->sme_state != SME_DISCONNECTED) 3294 return -EBUSY; 3295 3296 ath6kl_cfg80211_scan_complete_event(vif, true); 3297 3298 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, 3299 request->n_ssids, 3300 request->match_sets, 3301 n_match_sets); 3302 if (ret < 0) 3303 return ret; 3304 3305 if (!n_match_sets) { 3306 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3307 ALL_BSS_FILTER, 0); 3308 if (ret < 0) 3309 return ret; 3310 } else { 3311 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 3312 MATCHED_SSID_FILTER, 0); 3313 if (ret < 0) 3314 return ret; 3315 } 3316 3317 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD, 3318 ar->fw_capabilities)) { 3319 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF) 3320 rssi_thold = 0; 3321 else if (request->min_rssi_thold < -127) 3322 rssi_thold = -127; 3323 else 3324 rssi_thold = request->min_rssi_thold; 3325 3326 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx, 3327 rssi_thold); 3328 if (ret) { 3329 ath6kl_err("failed to set RSSI threshold for scan\n"); 3330 return ret; 3331 } 3332 } 3333 3334 /* fw uses seconds, also make sure that it's >0 */ 3335 interval = max_t(u16, 1, request->scan_plans[0].interval); 3336 3337 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 3338 interval, interval, 3339 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); 3340 3341 /* this also clears IE in fw if it's not set */ 3342 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, 3343 WMI_FRAME_PROBE_REQ, 3344 request->ie, request->ie_len); 3345 if (ret) { 3346 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n", 3347 ret); 3348 return ret; 3349 } 3350 3351 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true); 3352 if (ret) 3353 return ret; 3354 3355 set_bit(SCHED_SCANNING, &vif->flags); 3356 3357 return 0; 3358} 3359 3360static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy, 3361 struct net_device *dev, u64 reqid) 3362{ 3363 struct ath6kl_vif *vif = netdev_priv(dev); 3364 bool stopped; 3365 3366 stopped = __ath6kl_cfg80211_sscan_stop(vif); 3367 3368 if (!stopped) 3369 return -EIO; 3370 3371 return 0; 3372} 3373 3374static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy, 3375 struct net_device *dev, 3376 unsigned int link_id, 3377 const u8 *addr, 3378 const struct cfg80211_bitrate_mask *mask) 3379{ 3380 struct ath6kl *ar = ath6kl_priv(dev); 3381 struct ath6kl_vif *vif = netdev_priv(dev); 3382 3383 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx, 3384 mask); 3385} 3386 3387static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy, 3388 struct net_device *dev, 3389 u32 rate, u32 pkts, u32 intvl) 3390{ 3391 struct ath6kl *ar = ath6kl_priv(dev); 3392 struct ath6kl_vif *vif = netdev_priv(dev); 3393 3394 if (vif->nw_type != INFRA_NETWORK || 3395 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities)) 3396 return -EOPNOTSUPP; 3397 3398 if (vif->sme_state != SME_CONNECTED) 3399 return -ENOTCONN; 3400 3401 /* save this since the firmware won't report the interval */ 3402 vif->txe_intvl = intvl; 3403 3404 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx, 3405 rate, pkts, intvl); 3406} 3407 3408static const struct ieee80211_txrx_stypes 3409ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { 3410 [NL80211_IFTYPE_STATION] = { 3411 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3412 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3413 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3414 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3415 }, 3416 [NL80211_IFTYPE_AP] = { 3417 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3418 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3419 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3420 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3421 }, 3422 [NL80211_IFTYPE_P2P_CLIENT] = { 3423 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3424 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3425 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3426 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3427 }, 3428 [NL80211_IFTYPE_P2P_GO] = { 3429 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3430 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 3431 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 3432 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 3433 }, 3434}; 3435 3436static struct cfg80211_ops ath6kl_cfg80211_ops = { 3437 .add_virtual_intf = ath6kl_cfg80211_add_iface, 3438 .del_virtual_intf = ath6kl_cfg80211_del_iface, 3439 .change_virtual_intf = ath6kl_cfg80211_change_iface, 3440 .scan = ath6kl_cfg80211_scan, 3441 .connect = ath6kl_cfg80211_connect, 3442 .disconnect = ath6kl_cfg80211_disconnect, 3443 .add_key = ath6kl_cfg80211_add_key, 3444 .get_key = ath6kl_cfg80211_get_key, 3445 .del_key = ath6kl_cfg80211_del_key, 3446 .set_default_key = ath6kl_cfg80211_set_default_key, 3447 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, 3448 .set_tx_power = ath6kl_cfg80211_set_txpower, 3449 .get_tx_power = ath6kl_cfg80211_get_txpower, 3450 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, 3451 .join_ibss = ath6kl_cfg80211_join_ibss, 3452 .leave_ibss = ath6kl_cfg80211_leave_ibss, 3453 .get_station = ath6kl_get_station, 3454 .set_pmksa = ath6kl_set_pmksa, 3455 .del_pmksa = ath6kl_del_pmksa, 3456 .flush_pmksa = ath6kl_flush_pmksa, 3457 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) 3458#ifdef CONFIG_PM 3459 .suspend = __ath6kl_cfg80211_suspend, 3460 .resume = __ath6kl_cfg80211_resume, 3461#endif 3462 .start_ap = ath6kl_start_ap, 3463 .change_beacon = ath6kl_change_beacon, 3464 .stop_ap = ath6kl_stop_ap, 3465 .del_station = ath6kl_del_station, 3466 .change_station = ath6kl_change_station, 3467 .remain_on_channel = ath6kl_remain_on_channel, 3468 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, 3469 .mgmt_tx = ath6kl_mgmt_tx, 3470 .update_mgmt_frame_registrations = 3471 ath6kl_update_mgmt_frame_registrations, 3472 .get_antenna = ath6kl_get_antenna, 3473 .sched_scan_start = ath6kl_cfg80211_sscan_start, 3474 .sched_scan_stop = ath6kl_cfg80211_sscan_stop, 3475 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate, 3476 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config, 3477}; 3478 3479void ath6kl_cfg80211_stop(struct ath6kl_vif *vif) 3480{ 3481 ath6kl_cfg80211_sscan_disable(vif); 3482 3483 switch (vif->sme_state) { 3484 case SME_DISCONNECTED: 3485 break; 3486 case SME_CONNECTING: 3487 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, 3488 NULL, 0, 3489 WLAN_STATUS_UNSPECIFIED_FAILURE, 3490 GFP_KERNEL); 3491 break; 3492 case SME_CONNECTED: 3493 cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL); 3494 break; 3495 } 3496 3497 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3498 (test_bit(CONNECTED, &vif->flags) || 3499 test_bit(CONNECT_PEND, &vif->flags))) 3500 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 3501 3502 vif->sme_state = SME_DISCONNECTED; 3503 clear_bit(CONNECTED, &vif->flags); 3504 clear_bit(CONNECT_PEND, &vif->flags); 3505 3506 /* Stop netdev queues, needed during recovery */ 3507 netif_stop_queue(vif->ndev); 3508 netif_carrier_off(vif->ndev); 3509 3510 /* disable scanning */ 3511 if (vif->ar->state != ATH6KL_STATE_RECOVERY && 3512 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF, 3513 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) 3514 ath6kl_warn("failed to disable scan during stop\n"); 3515 3516 ath6kl_cfg80211_scan_complete_event(vif, true); 3517} 3518 3519void ath6kl_cfg80211_stop_all(struct ath6kl *ar) 3520{ 3521 struct ath6kl_vif *vif; 3522 3523 vif = ath6kl_vif_first(ar); 3524 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) { 3525 /* save the current power mode before enabling power save */ 3526 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; 3527 3528 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) 3529 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n"); 3530 return; 3531 } 3532 3533 /* 3534 * FIXME: we should take ar->list_lock to protect changes in the 3535 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop() 3536 * sleeps. 3537 */ 3538 list_for_each_entry(vif, &ar->vif_list, list) 3539 ath6kl_cfg80211_stop(vif); 3540} 3541 3542static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy, 3543 struct regulatory_request *request) 3544{ 3545 struct ath6kl *ar = wiphy_priv(wiphy); 3546 u32 rates[NUM_NL80211_BANDS]; 3547 int ret, i; 3548 3549 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 3550 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n", 3551 request->alpha2[0], request->alpha2[1], 3552 request->intersect ? " intersect" : "", 3553 request->processed ? " processed" : "", 3554 request->initiator, request->user_reg_hint_type); 3555 3556 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE) 3557 return; 3558 3559 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2); 3560 if (ret) { 3561 ath6kl_err("failed to set regdomain: %d\n", ret); 3562 return; 3563 } 3564 3565 /* 3566 * Firmware will apply the regdomain change only after a scan is 3567 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been 3568 * changed. 3569 */ 3570 3571 for (i = 0; i < NUM_NL80211_BANDS; i++) 3572 if (wiphy->bands[i]) 3573 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1; 3574 3575 3576 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false, 3577 false, 0, ATH6KL_FG_SCAN_INTERVAL, 3578 0, NULL, false, rates); 3579 if (ret) { 3580 ath6kl_err("failed to start scan for a regdomain change: %d\n", 3581 ret); 3582 return; 3583 } 3584} 3585 3586static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif) 3587{ 3588 vif->aggr_cntxt = aggr_init(vif); 3589 if (!vif->aggr_cntxt) { 3590 ath6kl_err("failed to initialize aggr\n"); 3591 return -ENOMEM; 3592 } 3593 3594 timer_setup(&vif->disconnect_timer, disconnect_timer_handler, 0); 3595 timer_setup(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 0); 3596 3597 set_bit(WMM_ENABLED, &vif->flags); 3598 spin_lock_init(&vif->if_lock); 3599 3600 INIT_LIST_HEAD(&vif->mc_filter); 3601 3602 return 0; 3603} 3604 3605void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready) 3606{ 3607 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 3608 bool discon_issued; 3609 3610 netif_stop_queue(vif->ndev); 3611 3612 clear_bit(WLAN_ENABLED, &vif->flags); 3613 3614 if (wmi_ready) { 3615 discon_issued = test_bit(CONNECTED, &vif->flags) || 3616 test_bit(CONNECT_PEND, &vif->flags); 3617 ath6kl_disconnect(vif); 3618 timer_delete(&vif->disconnect_timer); 3619 3620 if (discon_issued) 3621 ath6kl_disconnect_event(vif, DISCONNECT_CMD, 3622 (vif->nw_type & AP_NETWORK) ? 3623 bcast_mac : vif->bssid, 3624 0, NULL, 0); 3625 } 3626 3627 if (vif->scan_req) { 3628 struct cfg80211_scan_info info = { 3629 .aborted = true, 3630 }; 3631 3632 cfg80211_scan_done(vif->scan_req, &info); 3633 vif->scan_req = NULL; 3634 } 3635 3636 /* need to clean up enhanced bmiss detection fw state */ 3637 ath6kl_cfg80211_sta_bmiss_enhance(vif, false); 3638} 3639 3640void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif) 3641{ 3642 struct ath6kl *ar = vif->ar; 3643 struct ath6kl_mc_filter *mc_filter, *tmp; 3644 3645 aggr_module_destroy(vif->aggr_cntxt); 3646 3647 ar->avail_idx_map |= BIT(vif->fw_vif_idx); 3648 3649 if (vif->nw_type == ADHOC_NETWORK) 3650 ar->ibss_if_active = false; 3651 3652 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 3653 list_del(&mc_filter->list); 3654 kfree(mc_filter); 3655 } 3656 3657 cfg80211_unregister_netdevice(vif->ndev); 3658 3659 ar->num_vif--; 3660} 3661 3662static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = { 3663 /* Common stats names used by many drivers. */ 3664 "tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic", 3665 3666 /* TX stats. */ 3667 "d_tx_ucast_pkts", "d_tx_bcast_pkts", 3668 "d_tx_ucast_bytes", "d_tx_bcast_bytes", 3669 "d_tx_rts_ok", "d_tx_error", "d_tx_fail", 3670 "d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail", 3671 "d_tx_tkip_counter_measures", 3672 3673 /* RX Stats. */ 3674 "d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts", 3675 "d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt", 3676 "d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss", 3677 "d_rx_decrypt_crc_err", "d_rx_duplicate_frames", 3678 "d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err", 3679 "d_rx_ccmp_replay_err", 3680 3681 /* Misc stats. */ 3682 "d_beacon_miss", "d_num_connects", "d_num_disconnects", 3683 "d_beacon_avg_rssi", "d_arp_received", "d_arp_matched", 3684 "d_arp_replied" 3685}; 3686 3687#define ATH6KL_STATS_LEN ARRAY_SIZE(ath6kl_gstrings_sta_stats) 3688 3689static int ath6kl_get_sset_count(struct net_device *dev, int sset) 3690{ 3691 int rv = 0; 3692 3693 if (sset == ETH_SS_STATS) 3694 rv += ATH6KL_STATS_LEN; 3695 3696 if (rv == 0) 3697 return -EOPNOTSUPP; 3698 return rv; 3699} 3700 3701static void ath6kl_get_stats(struct net_device *dev, 3702 struct ethtool_stats *stats, 3703 u64 *data) 3704{ 3705 struct ath6kl_vif *vif = netdev_priv(dev); 3706 struct ath6kl *ar = vif->ar; 3707 int i = 0; 3708 struct target_stats *tgt_stats; 3709 3710 memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN); 3711 3712 ath6kl_read_tgt_stats(ar, vif); 3713 3714 tgt_stats = &vif->target_stats; 3715 3716 data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt; 3717 data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte; 3718 data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt; 3719 data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte; 3720 3721 data[i++] = tgt_stats->tx_ucast_pkt; 3722 data[i++] = tgt_stats->tx_bcast_pkt; 3723 data[i++] = tgt_stats->tx_ucast_byte; 3724 data[i++] = tgt_stats->tx_bcast_byte; 3725 data[i++] = tgt_stats->tx_rts_success_cnt; 3726 data[i++] = tgt_stats->tx_err; 3727 data[i++] = tgt_stats->tx_fail_cnt; 3728 data[i++] = tgt_stats->tx_retry_cnt; 3729 data[i++] = tgt_stats->tx_mult_retry_cnt; 3730 data[i++] = tgt_stats->tx_rts_fail_cnt; 3731 data[i++] = tgt_stats->tkip_cnter_measures_invoked; 3732 3733 data[i++] = tgt_stats->rx_ucast_pkt; 3734 data[i++] = tgt_stats->rx_ucast_rate; 3735 data[i++] = tgt_stats->rx_bcast_pkt; 3736 data[i++] = tgt_stats->rx_ucast_byte; 3737 data[i++] = tgt_stats->rx_bcast_byte; 3738 data[i++] = tgt_stats->rx_frgment_pkt; 3739 data[i++] = tgt_stats->rx_err; 3740 data[i++] = tgt_stats->rx_crc_err; 3741 data[i++] = tgt_stats->rx_key_cache_miss; 3742 data[i++] = tgt_stats->rx_decrypt_err; 3743 data[i++] = tgt_stats->rx_dupl_frame; 3744 data[i++] = tgt_stats->tkip_local_mic_fail; 3745 data[i++] = tgt_stats->tkip_fmt_err; 3746 data[i++] = tgt_stats->ccmp_fmt_err; 3747 data[i++] = tgt_stats->ccmp_replays; 3748 3749 data[i++] = tgt_stats->cs_bmiss_cnt; 3750 data[i++] = tgt_stats->cs_connect_cnt; 3751 data[i++] = tgt_stats->cs_discon_cnt; 3752 data[i++] = tgt_stats->cs_ave_beacon_rssi; 3753 data[i++] = tgt_stats->arp_received; 3754 data[i++] = tgt_stats->arp_matched; 3755 data[i++] = tgt_stats->arp_replied; 3756 3757 if (i != ATH6KL_STATS_LEN) { 3758 WARN_ON_ONCE(1); 3759 ath6kl_err("ethtool stats error, i: %d STATS_LEN: %d\n", 3760 i, (int)ATH6KL_STATS_LEN); 3761 } 3762} 3763 3764/* These stats are per NIC, not really per vdev, so we just ignore dev. */ 3765static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data) 3766{ 3767 int sz_sta_stats = 0; 3768 3769 if (sset == ETH_SS_STATS) { 3770 sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats); 3771 memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats); 3772 } 3773} 3774 3775static const struct ethtool_ops ath6kl_ethtool_ops = { 3776 .get_drvinfo = cfg80211_get_drvinfo, 3777 .get_link = ethtool_op_get_link, 3778 .get_strings = ath6kl_get_strings, 3779 .get_ethtool_stats = ath6kl_get_stats, 3780 .get_sset_count = ath6kl_get_sset_count, 3781}; 3782 3783struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name, 3784 unsigned char name_assign_type, 3785 enum nl80211_iftype type, 3786 u8 fw_vif_idx, u8 nw_type) 3787{ 3788 struct net_device *ndev; 3789 struct ath6kl_vif *vif; 3790 u8 addr[ETH_ALEN]; 3791 3792 ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup); 3793 if (!ndev) 3794 return NULL; 3795 3796 vif = netdev_priv(ndev); 3797 ndev->ieee80211_ptr = &vif->wdev; 3798 vif->wdev.wiphy = ar->wiphy; 3799 vif->ar = ar; 3800 vif->ndev = ndev; 3801 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); 3802 vif->wdev.netdev = ndev; 3803 vif->wdev.iftype = type; 3804 vif->fw_vif_idx = fw_vif_idx; 3805 vif->nw_type = nw_type; 3806 vif->next_mode = nw_type; 3807 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL; 3808 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME; 3809 vif->bg_scan_period = 0; 3810 vif->htcap[NL80211_BAND_2GHZ].ht_enable = true; 3811 vif->htcap[NL80211_BAND_5GHZ].ht_enable = true; 3812 3813 ether_addr_copy(addr, ar->mac_addr); 3814 if (fw_vif_idx != 0) { 3815 addr[0] = (addr[0] ^ (1 << fw_vif_idx)) | 0x2; 3816 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR, 3817 ar->fw_capabilities)) 3818 addr[4] ^= 0x80; 3819 } 3820 eth_hw_addr_set(ndev, addr); 3821 3822 init_netdev(ndev); 3823 3824 ath6kl_init_control_info(vif); 3825 3826 if (ath6kl_cfg80211_vif_init(vif)) 3827 goto err; 3828 3829 netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops); 3830 3831 if (cfg80211_register_netdevice(ndev)) 3832 goto err; 3833 3834 ar->avail_idx_map &= ~BIT(fw_vif_idx); 3835 vif->sme_state = SME_DISCONNECTED; 3836 set_bit(WLAN_ENABLED, &vif->flags); 3837 ar->wlan_pwr_state = WLAN_POWER_STATE_ON; 3838 3839 if (type == NL80211_IFTYPE_ADHOC) 3840 ar->ibss_if_active = true; 3841 3842 spin_lock_bh(&ar->list_lock); 3843 list_add_tail(&vif->list, &ar->vif_list); 3844 spin_unlock_bh(&ar->list_lock); 3845 3846 return &vif->wdev; 3847 3848err: 3849 aggr_module_destroy(vif->aggr_cntxt); 3850 free_netdev(ndev); 3851 return NULL; 3852} 3853 3854#ifdef CONFIG_PM 3855static const struct wiphy_wowlan_support ath6kl_wowlan_support = { 3856 .flags = WIPHY_WOWLAN_MAGIC_PKT | 3857 WIPHY_WOWLAN_DISCONNECT | 3858 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 3859 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 3860 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 3861 WIPHY_WOWLAN_4WAY_HANDSHAKE, 3862 .n_patterns = WOW_MAX_FILTERS_PER_LIST, 3863 .pattern_min_len = 1, 3864 .pattern_max_len = WOW_PATTERN_SIZE, 3865}; 3866#endif 3867 3868int ath6kl_cfg80211_init(struct ath6kl *ar) 3869{ 3870 struct wiphy *wiphy = ar->wiphy; 3871 bool band_2gig = false, band_5gig = false, ht = false; 3872 int ret; 3873 3874 wiphy->mgmt_stypes = ath6kl_mgmt_stypes; 3875 3876 wiphy->max_remain_on_channel_duration = 5000; 3877 3878 /* set device pointer for wiphy */ 3879 set_wiphy_dev(wiphy, ar->dev); 3880 3881 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 3882 BIT(NL80211_IFTYPE_ADHOC) | 3883 BIT(NL80211_IFTYPE_AP); 3884 if (ar->p2p) { 3885 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | 3886 BIT(NL80211_IFTYPE_P2P_CLIENT); 3887 } 3888 3889 if (IS_ENABLED(CONFIG_ATH6KL_REGDOMAIN) && 3890 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) { 3891 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify; 3892 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS; 3893 } 3894 3895 /* max num of ssids that can be probed during scanning */ 3896 wiphy->max_scan_ssids = MAX_PROBED_SSIDS; 3897 3898 /* max num of ssids that can be matched after scan */ 3899 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST, 3900 ar->fw_capabilities)) 3901 wiphy->max_match_sets = MAX_PROBED_SSIDS; 3902 3903 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ 3904 switch (ar->hw.cap) { 3905 case WMI_11AN_CAP: 3906 ht = true; 3907 fallthrough; 3908 case WMI_11A_CAP: 3909 band_5gig = true; 3910 break; 3911 case WMI_11GN_CAP: 3912 ht = true; 3913 fallthrough; 3914 case WMI_11G_CAP: 3915 band_2gig = true; 3916 break; 3917 case WMI_11AGN_CAP: 3918 ht = true; 3919 fallthrough; 3920 case WMI_11AG_CAP: 3921 band_2gig = true; 3922 band_5gig = true; 3923 break; 3924 default: 3925 ath6kl_err("invalid phy capability!\n"); 3926 return -EINVAL; 3927 } 3928 3929 /* 3930 * Even if the fw has HT support, advertise HT cap only when 3931 * the firmware has support to override RSN capability, otherwise 3932 * 4-way handshake would fail. 3933 */ 3934 if (!(ht && 3935 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 3936 ar->fw_capabilities))) { 3937 ath6kl_band_2ghz.ht_cap.cap = 0; 3938 ath6kl_band_2ghz.ht_cap.ht_supported = false; 3939 ath6kl_band_5ghz.ht_cap.cap = 0; 3940 ath6kl_band_5ghz.ht_cap.ht_supported = false; 3941 3942 if (ht) 3943 ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled."); 3944 } 3945 3946 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, 3947 ar->fw_capabilities)) { 3948 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3949 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3950 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3951 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff; 3952 ar->hw.tx_ant = 0x3; /* mask, 2 antenna */ 3953 ar->hw.rx_ant = 0x3; 3954 } else { 3955 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3956 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff; 3957 ar->hw.tx_ant = 1; 3958 ar->hw.rx_ant = 1; 3959 } 3960 3961 wiphy->available_antennas_tx = ar->hw.tx_ant; 3962 wiphy->available_antennas_rx = ar->hw.rx_ant; 3963 3964 if (band_2gig) 3965 wiphy->bands[NL80211_BAND_2GHZ] = &ath6kl_band_2ghz; 3966 if (band_5gig) 3967 wiphy->bands[NL80211_BAND_5GHZ] = &ath6kl_band_5ghz; 3968 3969 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 3970 3971 wiphy->cipher_suites = cipher_suites; 3972 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 3973 3974#ifdef CONFIG_PM 3975 wiphy->wowlan = &ath6kl_wowlan_support; 3976#endif 3977 3978 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS; 3979 3980 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 3981 WIPHY_FLAG_HAVE_AP_SME | 3982 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 3983 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 3984 3985 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities)) 3986 ar->wiphy->max_sched_scan_reqs = 1; 3987 3988 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT, 3989 ar->fw_capabilities)) 3990 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 3991 3992 ar->wiphy->probe_resp_offload = 3993 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 3994 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 3995 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 3996 3997 ret = wiphy_register(wiphy); 3998 if (ret < 0) { 3999 ath6kl_err("couldn't register wiphy device\n"); 4000 return ret; 4001 } 4002 4003 ar->wiphy_registered = true; 4004 4005 return 0; 4006} 4007 4008void ath6kl_cfg80211_cleanup(struct ath6kl *ar) 4009{ 4010 wiphy_unregister(ar->wiphy); 4011 4012 ar->wiphy_registered = false; 4013} 4014 4015struct ath6kl *ath6kl_cfg80211_create(void) 4016{ 4017 struct ath6kl *ar; 4018 struct wiphy *wiphy; 4019 4020 /* create a new wiphy for use with cfg80211 */ 4021 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); 4022 4023 if (!wiphy) { 4024 ath6kl_err("couldn't allocate wiphy device\n"); 4025 return NULL; 4026 } 4027 4028 ar = wiphy_priv(wiphy); 4029 ar->wiphy = wiphy; 4030 4031 return ar; 4032} 4033 4034/* Note: ar variable must not be accessed after calling this! */ 4035void ath6kl_cfg80211_destroy(struct ath6kl *ar) 4036{ 4037 int i; 4038 4039 for (i = 0; i < AP_MAX_NUM_STA; i++) 4040 kfree(ar->sta_list[i].aggr_conn); 4041 4042 wiphy_free(ar->wiphy); 4043} 4044
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