1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* Copyright(c) 2018-2019 Realtek Corporation 3 */ 4 5 #include "main.h" 6 #include "sec.h" 7 #include "tx.h" 8 #include "fw.h" 9 #include "mac.h" 10 #include "coex.h" 11 #include "ps.h" 12 #include "reg.h" 13 #include "bf.h" 14 #include "debug.h" 15 #include "wow.h" 16 #include "sar.h" 17 18 static void rtw_ops_tx(struct ieee80211_hw *hw, 19 struct ieee80211_tx_control *control, 20 struct sk_buff *skb) 21 { 22 struct rtw_dev *rtwdev = hw->priv; 23 24 if (!test_bit(RTW_FLAG_RUNNING, rtwdev->flags)) { 25 ieee80211_free_txskb(hw, skb); 26 return; 27 } 28 29 rtw_tx(rtwdev, control, skb); 30 } 31 32 static void rtw_ops_wake_tx_queue(struct ieee80211_hw *hw, 33 struct ieee80211_txq *txq) 34 { 35 struct rtw_dev *rtwdev = hw->priv; 36 struct rtw_txq *rtwtxq = (struct rtw_txq *)txq->drv_priv; 37 38 if (!test_bit(RTW_FLAG_RUNNING, rtwdev->flags)) 39 return; 40 41 spin_lock_bh(&rtwdev->txq_lock); 42 if (list_empty(&rtwtxq->list)) 43 list_add_tail(&rtwtxq->list, &rtwdev->txqs); 44 spin_unlock_bh(&rtwdev->txq_lock); 45 46 /* ensure to dequeue EAPOL (4/4) at the right time */ 47 if (txq->ac == IEEE80211_AC_VO) 48 __rtw_tx_work(rtwdev); 49 else 50 queue_work(rtwdev->tx_wq, &rtwdev->tx_work); 51 } 52 53 static int rtw_ops_start(struct ieee80211_hw *hw) 54 { 55 struct rtw_dev *rtwdev = hw->priv; 56 int ret; 57 58 mutex_lock(&rtwdev->mutex); 59 ret = rtw_core_start(rtwdev); 60 mutex_unlock(&rtwdev->mutex); 61 62 return ret; 63 } 64 65 static void rtw_ops_stop(struct ieee80211_hw *hw, bool suspend) 66 { 67 struct rtw_dev *rtwdev = hw->priv; 68 69 mutex_lock(&rtwdev->mutex); 70 rtw_core_stop(rtwdev); 71 mutex_unlock(&rtwdev->mutex); 72 } 73 74 static int rtw_ops_config(struct ieee80211_hw *hw, u32 changed) 75 { 76 struct rtw_dev *rtwdev = hw->priv; 77 int ret = 0; 78 79 /* let previous ips work finish to ensure we don't leave ips twice */ 80 cancel_work_sync(&rtwdev->ips_work); 81 82 mutex_lock(&rtwdev->mutex); 83 84 rtw_leave_lps_deep(rtwdev); 85 86 if ((changed & IEEE80211_CONF_CHANGE_IDLE) && 87 !(hw->conf.flags & IEEE80211_CONF_IDLE)) { 88 ret = rtw_leave_ips(rtwdev); 89 if (ret) { 90 rtw_err(rtwdev, "failed to leave idle state\n"); 91 goto out; 92 } 93 } 94 95 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) 96 rtw_set_channel(rtwdev); 97 98 if ((changed & IEEE80211_CONF_CHANGE_IDLE) && 99 (hw->conf.flags & IEEE80211_CONF_IDLE) && 100 !test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 101 rtw_enter_ips(rtwdev); 102 103 out: 104 mutex_unlock(&rtwdev->mutex); 105 return ret; 106 } 107 108 static const struct rtw_vif_port rtw_vif_port[] = { 109 [0] = { 110 .mac_addr = {.addr = 0x0610}, 111 .bssid = {.addr = 0x0618}, 112 .net_type = {.addr = 0x0100, .mask = 0x30000}, 113 .aid = {.addr = 0x06a8, .mask = 0x7ff}, 114 .bcn_ctrl = {.addr = 0x0550, .mask = 0xff}, 115 }, 116 [1] = { 117 .mac_addr = {.addr = 0x0700}, 118 .bssid = {.addr = 0x0708}, 119 .net_type = {.addr = 0x0100, .mask = 0xc0000}, 120 .aid = {.addr = 0x0710, .mask = 0x7ff}, 121 .bcn_ctrl = {.addr = 0x0551, .mask = 0xff}, 122 }, 123 [2] = { 124 .mac_addr = {.addr = 0x1620}, 125 .bssid = {.addr = 0x1628}, 126 .net_type = {.addr = 0x1100, .mask = 0x3}, 127 .aid = {.addr = 0x1600, .mask = 0x7ff}, 128 .bcn_ctrl = {.addr = 0x0578, .mask = 0xff}, 129 }, 130 [3] = { 131 .mac_addr = {.addr = 0x1630}, 132 .bssid = {.addr = 0x1638}, 133 .net_type = {.addr = 0x1100, .mask = 0xc}, 134 .aid = {.addr = 0x1604, .mask = 0x7ff}, 135 .bcn_ctrl = {.addr = 0x0579, .mask = 0xff}, 136 }, 137 [4] = { 138 .mac_addr = {.addr = 0x1640}, 139 .bssid = {.addr = 0x1648}, 140 .net_type = {.addr = 0x1100, .mask = 0x30}, 141 .aid = {.addr = 0x1608, .mask = 0x7ff}, 142 .bcn_ctrl = {.addr = 0x057a, .mask = 0xff}, 143 }, 144 }; 145 146 static int rtw_ops_add_interface(struct ieee80211_hw *hw, 147 struct ieee80211_vif *vif) 148 { 149 struct rtw_dev *rtwdev = hw->priv; 150 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 151 enum rtw_net_type net_type; 152 u32 config = 0; 153 u8 port; 154 u8 bcn_ctrl = 0; 155 156 if (rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_BCN_FILTER)) 157 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 158 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 159 rtwvif->stats.tx_unicast = 0; 160 rtwvif->stats.rx_unicast = 0; 161 rtwvif->stats.tx_cnt = 0; 162 rtwvif->stats.rx_cnt = 0; 163 rtwvif->scan_req = NULL; 164 memset(&rtwvif->bfee, 0, sizeof(struct rtw_bfee)); 165 rtw_txq_init(rtwdev, vif->txq); 166 INIT_LIST_HEAD(&rtwvif->rsvd_page_list); 167 168 mutex_lock(&rtwdev->mutex); 169 170 rtwvif->mac_id = rtw_acquire_macid(rtwdev); 171 if (rtwvif->mac_id >= RTW_MAX_MAC_ID_NUM) { 172 mutex_unlock(&rtwdev->mutex); 173 return -ENOSPC; 174 } 175 176 port = find_first_zero_bit(rtwdev->hw_port, RTW_PORT_NUM); 177 if (port >= RTW_PORT_NUM) { 178 mutex_unlock(&rtwdev->mutex); 179 return -EINVAL; 180 } 181 set_bit(port, rtwdev->hw_port); 182 183 rtwvif->port = port; 184 rtwvif->conf = &rtw_vif_port[port]; 185 rtw_leave_lps_deep(rtwdev); 186 187 switch (vif->type) { 188 case NL80211_IFTYPE_AP: 189 case NL80211_IFTYPE_MESH_POINT: 190 rtw_add_rsvd_page_bcn(rtwdev, rtwvif); 191 net_type = RTW_NET_AP_MODE; 192 bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT; 193 break; 194 case NL80211_IFTYPE_ADHOC: 195 rtw_add_rsvd_page_bcn(rtwdev, rtwvif); 196 net_type = RTW_NET_AD_HOC; 197 bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT; 198 break; 199 case NL80211_IFTYPE_STATION: 200 rtw_add_rsvd_page_sta(rtwdev, rtwvif); 201 net_type = RTW_NET_NO_LINK; 202 bcn_ctrl = BIT_EN_BCN_FUNCTION; 203 break; 204 default: 205 WARN_ON(1); 206 clear_bit(rtwvif->port, rtwdev->hw_port); 207 mutex_unlock(&rtwdev->mutex); 208 return -EINVAL; 209 } 210 211 ether_addr_copy(rtwvif->mac_addr, vif->addr); 212 config |= PORT_SET_MAC_ADDR; 213 rtwvif->net_type = net_type; 214 config |= PORT_SET_NET_TYPE; 215 rtwvif->bcn_ctrl = bcn_ctrl; 216 config |= PORT_SET_BCN_CTRL; 217 rtw_vif_port_config(rtwdev, rtwvif, config); 218 rtw_core_port_switch(rtwdev, vif); 219 rtw_recalc_lps(rtwdev, vif); 220 221 mutex_unlock(&rtwdev->mutex); 222 223 #if defined(__linux__) 224 rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %pM mac_id %d on port %d\n", 225 vif->addr, rtwvif->mac_id, rtwvif->port); 226 #elif defined(__FreeBSD__) 227 rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %6D mac_id %d on port %d\n", 228 vif->addr, ":", rtwvif->mac_id, rtwvif->port); 229 #endif 230 return 0; 231 } 232 233 static void rtw_ops_remove_interface(struct ieee80211_hw *hw, 234 struct ieee80211_vif *vif) 235 { 236 struct rtw_dev *rtwdev = hw->priv; 237 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 238 u32 config = 0; 239 240 #if defined(__linux__) 241 rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %pM mac_id %d on port %d\n", 242 vif->addr, rtwvif->mac_id, rtwvif->port); 243 #elif defined(__FreeBSD__) 244 rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %6D mac_id %d on port %d\n", 245 vif->addr, ":", rtwvif->mac_id, rtwvif->port); 246 #endif 247 248 mutex_lock(&rtwdev->mutex); 249 250 rtw_leave_lps_deep(rtwdev); 251 252 rtw_txq_cleanup(rtwdev, vif->txq); 253 rtw_remove_rsvd_page(rtwdev, rtwvif); 254 255 eth_zero_addr(rtwvif->mac_addr); 256 config |= PORT_SET_MAC_ADDR; 257 rtwvif->net_type = RTW_NET_NO_LINK; 258 config |= PORT_SET_NET_TYPE; 259 rtwvif->bcn_ctrl = 0; 260 config |= PORT_SET_BCN_CTRL; 261 rtw_vif_port_config(rtwdev, rtwvif, config); 262 clear_bit(rtwvif->port, rtwdev->hw_port); 263 rtw_release_macid(rtwdev, rtwvif->mac_id); 264 rtw_recalc_lps(rtwdev, NULL); 265 266 mutex_unlock(&rtwdev->mutex); 267 } 268 269 static int rtw_ops_change_interface(struct ieee80211_hw *hw, 270 struct ieee80211_vif *vif, 271 enum nl80211_iftype type, bool p2p) 272 { 273 struct rtw_dev *rtwdev = hw->priv; 274 275 #if defined(__linux__) 276 rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n", 277 vif->addr, vif->type, type, vif->p2p, p2p); 278 #elif defined(__FreeBSD__) 279 rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %6D (%d)->(%d), p2p (%d)->(%d)\n", 280 vif->addr, ":", vif->type, type, vif->p2p, p2p); 281 #endif 282 283 rtw_ops_remove_interface(hw, vif); 284 285 vif->type = type; 286 vif->p2p = p2p; 287 288 return rtw_ops_add_interface(hw, vif); 289 } 290 291 static void rtw_ops_configure_filter(struct ieee80211_hw *hw, 292 unsigned int changed_flags, 293 unsigned int *new_flags, 294 u64 multicast) 295 { 296 struct rtw_dev *rtwdev = hw->priv; 297 298 *new_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_FCSFAIL | 299 FIF_BCN_PRBRESP_PROMISC; 300 301 mutex_lock(&rtwdev->mutex); 302 303 rtw_leave_lps_deep(rtwdev); 304 305 if (changed_flags & FIF_ALLMULTI) { 306 if (*new_flags & FIF_ALLMULTI) 307 rtwdev->hal.rcr |= BIT_AM; 308 else 309 rtwdev->hal.rcr &= ~(BIT_AM); 310 } 311 if (changed_flags & FIF_FCSFAIL) { 312 if (*new_flags & FIF_FCSFAIL) 313 rtwdev->hal.rcr |= BIT_ACRC32; 314 else 315 rtwdev->hal.rcr &= ~(BIT_ACRC32); 316 } 317 if (changed_flags & FIF_OTHER_BSS) { 318 if (*new_flags & FIF_OTHER_BSS) 319 rtwdev->hal.rcr |= BIT_AAP; 320 else 321 rtwdev->hal.rcr &= ~(BIT_AAP); 322 } 323 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { 324 if (*new_flags & FIF_BCN_PRBRESP_PROMISC) 325 rtwdev->hal.rcr &= ~(BIT_CBSSID_BCN | BIT_CBSSID_DATA); 326 else 327 rtwdev->hal.rcr |= BIT_CBSSID_BCN; 328 } 329 330 rtw_dbg(rtwdev, RTW_DBG_RX, 331 "config rx filter, changed=0x%08x, new=0x%08x, rcr=0x%08x\n", 332 changed_flags, *new_flags, rtwdev->hal.rcr); 333 334 rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr); 335 336 mutex_unlock(&rtwdev->mutex); 337 } 338 339 /* Only have one group of EDCA parameters now */ 340 static const u32 ac_to_edca_param[IEEE80211_NUM_ACS] = { 341 [IEEE80211_AC_VO] = REG_EDCA_VO_PARAM, 342 [IEEE80211_AC_VI] = REG_EDCA_VI_PARAM, 343 [IEEE80211_AC_BE] = REG_EDCA_BE_PARAM, 344 [IEEE80211_AC_BK] = REG_EDCA_BK_PARAM, 345 }; 346 347 static u8 rtw_aifsn_to_aifs(struct rtw_dev *rtwdev, 348 struct rtw_vif *rtwvif, u8 aifsn) 349 { 350 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); 351 u8 slot_time; 352 u8 sifs; 353 354 slot_time = vif->bss_conf.use_short_slot ? 9 : 20; 355 sifs = rtwdev->hal.current_band_type == RTW_BAND_5G ? 16 : 10; 356 357 return aifsn * slot_time + sifs; 358 } 359 360 static void __rtw_conf_tx(struct rtw_dev *rtwdev, 361 struct rtw_vif *rtwvif, u16 ac) 362 { 363 struct ieee80211_tx_queue_params *params = &rtwvif->tx_params[ac]; 364 u32 edca_param = ac_to_edca_param[ac]; 365 u8 ecw_max, ecw_min; 366 u8 aifs; 367 368 /* 2^ecw - 1 = cw; ecw = log2(cw + 1) */ 369 ecw_max = ilog2(params->cw_max + 1); 370 ecw_min = ilog2(params->cw_min + 1); 371 aifs = rtw_aifsn_to_aifs(rtwdev, rtwvif, params->aifs); 372 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_TXOP_LMT, params->txop); 373 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMAX, ecw_max); 374 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMIN, ecw_min); 375 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_AIFS, aifs); 376 } 377 378 static void rtw_conf_tx(struct rtw_dev *rtwdev, 379 struct rtw_vif *rtwvif) 380 { 381 u16 ac; 382 383 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 384 __rtw_conf_tx(rtwdev, rtwvif, ac); 385 } 386 387 static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw, 388 struct ieee80211_vif *vif, 389 struct ieee80211_bss_conf *conf, 390 u64 changed) 391 { 392 struct rtw_dev *rtwdev = hw->priv; 393 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 394 struct rtw_coex *coex = &rtwdev->coex; 395 struct rtw_coex_stat *coex_stat = &coex->stat; 396 u32 config = 0; 397 398 mutex_lock(&rtwdev->mutex); 399 400 rtw_leave_lps_deep(rtwdev); 401 402 if (changed & BSS_CHANGED_ASSOC) { 403 rtw_vif_assoc_changed(rtwvif, conf); 404 if (vif->cfg.assoc) { 405 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_FINISH); 406 407 rtw_fw_download_rsvd_page(rtwdev); 408 rtw_send_rsvd_page_h2c(rtwdev); 409 rtw_fw_default_port(rtwdev, rtwvif); 410 rtw_coex_media_status_notify(rtwdev, vif->cfg.assoc); 411 if (rtw_bf_support) 412 rtw_bf_assoc(rtwdev, vif, conf); 413 414 rtw_fw_beacon_filter_config(rtwdev, true, vif); 415 } else { 416 rtw_leave_lps(rtwdev); 417 rtw_bf_disassoc(rtwdev, vif, conf); 418 /* Abort ongoing scan if cancel_scan isn't issued 419 * when disconnected by peer 420 */ 421 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 422 rtw_hw_scan_abort(rtwdev); 423 424 } 425 426 config |= PORT_SET_NET_TYPE; 427 config |= PORT_SET_AID; 428 } 429 430 if (changed & BSS_CHANGED_BSSID) { 431 ether_addr_copy(rtwvif->bssid, conf->bssid); 432 config |= PORT_SET_BSSID; 433 if (!rtw_core_check_sta_active(rtwdev)) 434 rtw_clear_op_chan(rtwdev); 435 else 436 rtw_store_op_chan(rtwdev, true); 437 } 438 439 if (changed & BSS_CHANGED_BEACON_INT) { 440 if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_STATION) 441 coex_stat->wl_beacon_interval = conf->beacon_int; 442 } 443 444 if (changed & BSS_CHANGED_BEACON) { 445 rtw_set_dtim_period(rtwdev, conf->dtim_period); 446 rtw_fw_download_rsvd_page(rtwdev); 447 rtw_send_rsvd_page_h2c(rtwdev); 448 } 449 450 if (changed & BSS_CHANGED_BEACON_ENABLED) { 451 if (conf->enable_beacon) 452 rtw_write32_set(rtwdev, REG_FWHW_TXQ_CTRL, 453 BIT_EN_BCNQ_DL); 454 else 455 rtw_write32_clr(rtwdev, REG_FWHW_TXQ_CTRL, 456 BIT_EN_BCNQ_DL); 457 } 458 if (changed & BSS_CHANGED_CQM) 459 rtw_fw_beacon_filter_config(rtwdev, true, vif); 460 461 if (changed & BSS_CHANGED_MU_GROUPS) 462 rtw_chip_set_gid_table(rtwdev, vif, conf); 463 464 if (changed & BSS_CHANGED_ERP_SLOT) 465 rtw_conf_tx(rtwdev, rtwvif); 466 467 if (changed & BSS_CHANGED_PS) 468 rtw_recalc_lps(rtwdev, NULL); 469 470 rtw_vif_port_config(rtwdev, rtwvif, config); 471 472 mutex_unlock(&rtwdev->mutex); 473 } 474 475 static int rtw_ops_start_ap(struct ieee80211_hw *hw, 476 struct ieee80211_vif *vif, 477 struct ieee80211_bss_conf *link_conf) 478 { 479 struct rtw_dev *rtwdev = hw->priv; 480 const struct rtw_chip_info *chip = rtwdev->chip; 481 482 mutex_lock(&rtwdev->mutex); 483 rtw_write32_set(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 484 rtwdev->ap_active = true; 485 rtw_store_op_chan(rtwdev, true); 486 chip->ops->phy_calibration(rtwdev); 487 mutex_unlock(&rtwdev->mutex); 488 489 return 0; 490 } 491 492 static void rtw_ops_stop_ap(struct ieee80211_hw *hw, 493 struct ieee80211_vif *vif, 494 struct ieee80211_bss_conf *link_conf) 495 { 496 struct rtw_dev *rtwdev = hw->priv; 497 498 mutex_lock(&rtwdev->mutex); 499 rtw_write32_clr(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 500 rtwdev->ap_active = false; 501 if (!rtw_core_check_sta_active(rtwdev)) 502 rtw_clear_op_chan(rtwdev); 503 mutex_unlock(&rtwdev->mutex); 504 } 505 506 static int rtw_ops_conf_tx(struct ieee80211_hw *hw, 507 struct ieee80211_vif *vif, 508 unsigned int link_id, u16 ac, 509 const struct ieee80211_tx_queue_params *params) 510 { 511 struct rtw_dev *rtwdev = hw->priv; 512 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 513 514 mutex_lock(&rtwdev->mutex); 515 516 rtw_leave_lps_deep(rtwdev); 517 518 rtwvif->tx_params[ac] = *params; 519 __rtw_conf_tx(rtwdev, rtwvif, ac); 520 521 mutex_unlock(&rtwdev->mutex); 522 523 return 0; 524 } 525 526 static int rtw_ops_sta_add(struct ieee80211_hw *hw, 527 struct ieee80211_vif *vif, 528 struct ieee80211_sta *sta) 529 { 530 struct rtw_dev *rtwdev = hw->priv; 531 int ret = 0; 532 533 mutex_lock(&rtwdev->mutex); 534 ret = rtw_sta_add(rtwdev, sta, vif); 535 mutex_unlock(&rtwdev->mutex); 536 537 return ret; 538 } 539 540 static int rtw_ops_sta_remove(struct ieee80211_hw *hw, 541 struct ieee80211_vif *vif, 542 struct ieee80211_sta *sta) 543 { 544 struct rtw_dev *rtwdev = hw->priv; 545 546 mutex_lock(&rtwdev->mutex); 547 rtw_fw_beacon_filter_config(rtwdev, false, vif); 548 rtw_sta_remove(rtwdev, sta, true); 549 mutex_unlock(&rtwdev->mutex); 550 551 return 0; 552 } 553 554 static int rtw_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 555 bool set) 556 { 557 struct rtw_dev *rtwdev = hw->priv; 558 559 ieee80211_queue_work(hw, &rtwdev->update_beacon_work); 560 561 return 0; 562 } 563 564 static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 565 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 566 struct ieee80211_key_conf *key) 567 { 568 struct rtw_dev *rtwdev = hw->priv; 569 struct rtw_sec_desc *sec = &rtwdev->sec; 570 u8 hw_key_type; 571 u8 hw_key_idx; 572 int ret = 0; 573 574 switch (key->cipher) { 575 case WLAN_CIPHER_SUITE_WEP40: 576 hw_key_type = RTW_CAM_WEP40; 577 break; 578 case WLAN_CIPHER_SUITE_WEP104: 579 hw_key_type = RTW_CAM_WEP104; 580 break; 581 case WLAN_CIPHER_SUITE_TKIP: 582 hw_key_type = RTW_CAM_TKIP; 583 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 584 break; 585 case WLAN_CIPHER_SUITE_CCMP: 586 hw_key_type = RTW_CAM_AES; 587 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 588 break; 589 case WLAN_CIPHER_SUITE_AES_CMAC: 590 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 591 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 592 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 593 case WLAN_CIPHER_SUITE_CCMP_256: 594 case WLAN_CIPHER_SUITE_GCMP: 595 case WLAN_CIPHER_SUITE_GCMP_256: 596 /* suppress error messages */ 597 return -EOPNOTSUPP; 598 default: 599 return -ENOTSUPP; 600 } 601 602 mutex_lock(&rtwdev->mutex); 603 604 rtw_leave_lps_deep(rtwdev); 605 606 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 607 hw_key_idx = rtw_sec_get_free_cam(sec); 608 } else { 609 /* multiple interfaces? */ 610 hw_key_idx = key->keyidx; 611 } 612 613 if (hw_key_idx > sec->total_cam_num) { 614 ret = -ENOSPC; 615 goto out; 616 } 617 618 switch (cmd) { 619 case SET_KEY: 620 /* need sw generated IV */ 621 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 622 key->hw_key_idx = hw_key_idx; 623 rtw_sec_write_cam(rtwdev, sec, sta, key, 624 hw_key_type, hw_key_idx); 625 break; 626 case DISABLE_KEY: 627 rtw_hci_flush_all_queues(rtwdev, false); 628 rtw_mac_flush_all_queues(rtwdev, false); 629 rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx); 630 break; 631 } 632 633 /* download new cam settings for PG to backup */ 634 if (rtw_get_lps_deep_mode(rtwdev) == LPS_DEEP_MODE_PG) 635 rtw_fw_download_rsvd_page(rtwdev); 636 637 out: 638 mutex_unlock(&rtwdev->mutex); 639 640 return ret; 641 } 642 643 static int rtw_ops_ampdu_action(struct ieee80211_hw *hw, 644 struct ieee80211_vif *vif, 645 struct ieee80211_ampdu_params *params) 646 { 647 struct ieee80211_sta *sta = params->sta; 648 u16 tid = params->tid; 649 struct ieee80211_txq *txq = sta->txq[tid]; 650 struct rtw_txq *rtwtxq = (struct rtw_txq *)txq->drv_priv; 651 652 switch (params->action) { 653 case IEEE80211_AMPDU_TX_START: 654 return IEEE80211_AMPDU_TX_START_IMMEDIATE; 655 case IEEE80211_AMPDU_TX_STOP_CONT: 656 case IEEE80211_AMPDU_TX_STOP_FLUSH: 657 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 658 clear_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 659 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 660 break; 661 case IEEE80211_AMPDU_TX_OPERATIONAL: 662 set_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 663 break; 664 case IEEE80211_AMPDU_RX_START: 665 case IEEE80211_AMPDU_RX_STOP: 666 break; 667 default: 668 WARN_ON(1); 669 return -ENOTSUPP; 670 } 671 672 return 0; 673 } 674 675 static bool rtw_ops_can_aggregate_in_amsdu(struct ieee80211_hw *hw, 676 struct sk_buff *head, 677 struct sk_buff *skb) 678 { 679 struct rtw_dev *rtwdev = hw->priv; 680 struct rtw_hal *hal = &rtwdev->hal; 681 682 /* we don't want to enable TX AMSDU on 2.4G */ 683 if (hal->current_band_type == RTW_BAND_2G) 684 return false; 685 686 return true; 687 } 688 689 static void rtw_ops_sw_scan_start(struct ieee80211_hw *hw, 690 struct ieee80211_vif *vif, 691 const u8 *mac_addr) 692 { 693 struct rtw_dev *rtwdev = hw->priv; 694 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 695 696 mutex_lock(&rtwdev->mutex); 697 rtw_core_scan_start(rtwdev, rtwvif, mac_addr, false); 698 mutex_unlock(&rtwdev->mutex); 699 } 700 701 static void rtw_ops_sw_scan_complete(struct ieee80211_hw *hw, 702 struct ieee80211_vif *vif) 703 { 704 struct rtw_dev *rtwdev = hw->priv; 705 706 mutex_lock(&rtwdev->mutex); 707 rtw_core_scan_complete(rtwdev, vif, false); 708 mutex_unlock(&rtwdev->mutex); 709 } 710 711 static void rtw_ops_mgd_prepare_tx(struct ieee80211_hw *hw, 712 struct ieee80211_vif *vif, 713 struct ieee80211_prep_tx_info *info) 714 { 715 struct rtw_dev *rtwdev = hw->priv; 716 717 mutex_lock(&rtwdev->mutex); 718 rtw_leave_lps_deep(rtwdev); 719 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_START); 720 rtw_chip_prepare_tx(rtwdev); 721 mutex_unlock(&rtwdev->mutex); 722 } 723 724 static int rtw_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 725 { 726 struct rtw_dev *rtwdev = hw->priv; 727 728 mutex_lock(&rtwdev->mutex); 729 rtwdev->rts_threshold = value; 730 mutex_unlock(&rtwdev->mutex); 731 732 return 0; 733 } 734 735 static void rtw_ops_sta_statistics(struct ieee80211_hw *hw, 736 struct ieee80211_vif *vif, 737 struct ieee80211_sta *sta, 738 struct station_info *sinfo) 739 { 740 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 741 742 sinfo->txrate = si->ra_report.txrate; 743 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 744 } 745 746 static void rtw_ops_flush(struct ieee80211_hw *hw, 747 struct ieee80211_vif *vif, 748 u32 queues, bool drop) 749 { 750 struct rtw_dev *rtwdev = hw->priv; 751 752 mutex_lock(&rtwdev->mutex); 753 rtw_leave_lps_deep(rtwdev); 754 755 rtw_hci_flush_queues(rtwdev, queues, drop); 756 rtw_mac_flush_queues(rtwdev, queues, drop); 757 mutex_unlock(&rtwdev->mutex); 758 } 759 760 struct rtw_iter_bitrate_mask_data { 761 struct rtw_dev *rtwdev; 762 struct ieee80211_vif *vif; 763 const struct cfg80211_bitrate_mask *mask; 764 }; 765 766 static void rtw_ra_mask_info_update_iter(void *data, struct ieee80211_sta *sta) 767 { 768 struct rtw_iter_bitrate_mask_data *br_data = data; 769 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 770 771 if (si->vif != br_data->vif) 772 return; 773 774 /* free previous mask setting */ 775 kfree(si->mask); 776 si->mask = kmemdup(br_data->mask, sizeof(struct cfg80211_bitrate_mask), 777 GFP_ATOMIC); 778 if (!si->mask) { 779 si->use_cfg_mask = false; 780 return; 781 } 782 783 si->use_cfg_mask = true; 784 rtw_update_sta_info(br_data->rtwdev, si, true); 785 } 786 787 static void rtw_ra_mask_info_update(struct rtw_dev *rtwdev, 788 struct ieee80211_vif *vif, 789 const struct cfg80211_bitrate_mask *mask) 790 { 791 struct rtw_iter_bitrate_mask_data br_data; 792 793 br_data.rtwdev = rtwdev; 794 br_data.vif = vif; 795 br_data.mask = mask; 796 rtw_iterate_stas(rtwdev, rtw_ra_mask_info_update_iter, &br_data); 797 } 798 799 static int rtw_ops_set_bitrate_mask(struct ieee80211_hw *hw, 800 struct ieee80211_vif *vif, 801 const struct cfg80211_bitrate_mask *mask) 802 { 803 struct rtw_dev *rtwdev = hw->priv; 804 805 mutex_lock(&rtwdev->mutex); 806 rtw_ra_mask_info_update(rtwdev, vif, mask); 807 mutex_unlock(&rtwdev->mutex); 808 809 return 0; 810 } 811 812 static int rtw_ops_set_antenna(struct ieee80211_hw *hw, 813 u32 tx_antenna, 814 u32 rx_antenna) 815 { 816 struct rtw_dev *rtwdev = hw->priv; 817 const struct rtw_chip_info *chip = rtwdev->chip; 818 int ret; 819 820 if (!chip->ops->set_antenna) 821 return -EOPNOTSUPP; 822 823 mutex_lock(&rtwdev->mutex); 824 ret = chip->ops->set_antenna(rtwdev, tx_antenna, rx_antenna); 825 mutex_unlock(&rtwdev->mutex); 826 827 return ret; 828 } 829 830 static int rtw_ops_get_antenna(struct ieee80211_hw *hw, 831 u32 *tx_antenna, 832 u32 *rx_antenna) 833 { 834 struct rtw_dev *rtwdev = hw->priv; 835 struct rtw_hal *hal = &rtwdev->hal; 836 837 *tx_antenna = hal->antenna_tx; 838 *rx_antenna = hal->antenna_rx; 839 840 return 0; 841 } 842 843 #ifdef CONFIG_PM 844 static int rtw_ops_suspend(struct ieee80211_hw *hw, 845 struct cfg80211_wowlan *wowlan) 846 { 847 struct rtw_dev *rtwdev = hw->priv; 848 int ret; 849 850 mutex_lock(&rtwdev->mutex); 851 ret = rtw_wow_suspend(rtwdev, wowlan); 852 if (ret) 853 rtw_err(rtwdev, "failed to suspend for wow %d\n", ret); 854 mutex_unlock(&rtwdev->mutex); 855 856 return ret ? 1 : 0; 857 } 858 859 static int rtw_ops_resume(struct ieee80211_hw *hw) 860 { 861 struct rtw_dev *rtwdev = hw->priv; 862 int ret; 863 864 mutex_lock(&rtwdev->mutex); 865 ret = rtw_wow_resume(rtwdev); 866 if (ret) 867 rtw_err(rtwdev, "failed to resume for wow %d\n", ret); 868 mutex_unlock(&rtwdev->mutex); 869 870 return ret ? 1 : 0; 871 } 872 873 static void rtw_ops_set_wakeup(struct ieee80211_hw *hw, bool enabled) 874 { 875 struct rtw_dev *rtwdev = hw->priv; 876 877 device_set_wakeup_enable(rtwdev->dev, enabled); 878 } 879 #endif 880 881 static void rtw_reconfig_complete(struct ieee80211_hw *hw, 882 enum ieee80211_reconfig_type reconfig_type) 883 { 884 struct rtw_dev *rtwdev = hw->priv; 885 886 mutex_lock(&rtwdev->mutex); 887 if (reconfig_type == IEEE80211_RECONFIG_TYPE_RESTART) 888 clear_bit(RTW_FLAG_RESTARTING, rtwdev->flags); 889 mutex_unlock(&rtwdev->mutex); 890 } 891 892 static int rtw_ops_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 893 struct ieee80211_scan_request *req) 894 { 895 struct rtw_dev *rtwdev = hw->priv; 896 int ret; 897 898 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 899 return 1; 900 901 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 902 return -EBUSY; 903 904 mutex_lock(&rtwdev->mutex); 905 rtw_hw_scan_start(rtwdev, vif, req); 906 ret = rtw_hw_scan_offload(rtwdev, vif, true); 907 if (ret) { 908 rtw_hw_scan_abort(rtwdev); 909 rtw_err(rtwdev, "HW scan failed with status: %d\n", ret); 910 } 911 mutex_unlock(&rtwdev->mutex); 912 913 return ret; 914 } 915 916 static void rtw_ops_cancel_hw_scan(struct ieee80211_hw *hw, 917 struct ieee80211_vif *vif) 918 { 919 struct rtw_dev *rtwdev = hw->priv; 920 921 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 922 return; 923 924 if (!test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 925 return; 926 927 mutex_lock(&rtwdev->mutex); 928 rtw_hw_scan_abort(rtwdev); 929 mutex_unlock(&rtwdev->mutex); 930 } 931 932 static int rtw_ops_set_sar_specs(struct ieee80211_hw *hw, 933 const struct cfg80211_sar_specs *sar) 934 { 935 struct rtw_dev *rtwdev = hw->priv; 936 937 mutex_lock(&rtwdev->mutex); 938 rtw_set_sar_specs(rtwdev, sar); 939 mutex_unlock(&rtwdev->mutex); 940 941 return 0; 942 } 943 944 static void rtw_ops_sta_rc_update(struct ieee80211_hw *hw, 945 struct ieee80211_vif *vif, 946 struct ieee80211_link_sta *link_sta, 947 u32 changed) 948 { 949 struct ieee80211_sta *sta = link_sta->sta; 950 struct rtw_dev *rtwdev = hw->priv; 951 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 952 953 if (changed & IEEE80211_RC_BW_CHANGED) 954 ieee80211_queue_work(rtwdev->hw, &si->rc_work); 955 } 956 957 const struct ieee80211_ops rtw_ops = { 958 .add_chanctx = ieee80211_emulate_add_chanctx, 959 .remove_chanctx = ieee80211_emulate_remove_chanctx, 960 .change_chanctx = ieee80211_emulate_change_chanctx, 961 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx, 962 .tx = rtw_ops_tx, 963 .wake_tx_queue = rtw_ops_wake_tx_queue, 964 .start = rtw_ops_start, 965 .stop = rtw_ops_stop, 966 .config = rtw_ops_config, 967 .add_interface = rtw_ops_add_interface, 968 .remove_interface = rtw_ops_remove_interface, 969 .change_interface = rtw_ops_change_interface, 970 .configure_filter = rtw_ops_configure_filter, 971 .bss_info_changed = rtw_ops_bss_info_changed, 972 .start_ap = rtw_ops_start_ap, 973 .stop_ap = rtw_ops_stop_ap, 974 .conf_tx = rtw_ops_conf_tx, 975 .sta_add = rtw_ops_sta_add, 976 .sta_remove = rtw_ops_sta_remove, 977 .set_tim = rtw_ops_set_tim, 978 .set_key = rtw_ops_set_key, 979 .ampdu_action = rtw_ops_ampdu_action, 980 .can_aggregate_in_amsdu = rtw_ops_can_aggregate_in_amsdu, 981 .sw_scan_start = rtw_ops_sw_scan_start, 982 .sw_scan_complete = rtw_ops_sw_scan_complete, 983 .mgd_prepare_tx = rtw_ops_mgd_prepare_tx, 984 .set_rts_threshold = rtw_ops_set_rts_threshold, 985 .sta_statistics = rtw_ops_sta_statistics, 986 .flush = rtw_ops_flush, 987 .set_bitrate_mask = rtw_ops_set_bitrate_mask, 988 .set_antenna = rtw_ops_set_antenna, 989 .get_antenna = rtw_ops_get_antenna, 990 .reconfig_complete = rtw_reconfig_complete, 991 .hw_scan = rtw_ops_hw_scan, 992 .cancel_hw_scan = rtw_ops_cancel_hw_scan, 993 .link_sta_rc_update = rtw_ops_sta_rc_update, 994 .set_sar_specs = rtw_ops_set_sar_specs, 995 #ifdef CONFIG_PM 996 .suspend = rtw_ops_suspend, 997 .resume = rtw_ops_resume, 998 .set_wakeup = rtw_ops_set_wakeup, 999 #endif 1000 }; 1001 EXPORT_SYMBOL(rtw_ops); 1002