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) 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 port = find_first_zero_bit(rtwdev->hw_port, RTW_PORT_NUM); 171 if (port >= RTW_PORT_NUM) { 172 mutex_unlock(&rtwdev->mutex); 173 return -EINVAL; 174 } 175 set_bit(port, rtwdev->hw_port); 176 177 rtwvif->port = port; 178 rtwvif->conf = &rtw_vif_port[port]; 179 rtw_leave_lps_deep(rtwdev); 180 181 switch (vif->type) { 182 case NL80211_IFTYPE_AP: 183 case NL80211_IFTYPE_MESH_POINT: 184 rtw_add_rsvd_page_bcn(rtwdev, rtwvif); 185 net_type = RTW_NET_AP_MODE; 186 bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT; 187 break; 188 case NL80211_IFTYPE_ADHOC: 189 rtw_add_rsvd_page_bcn(rtwdev, rtwvif); 190 net_type = RTW_NET_AD_HOC; 191 bcn_ctrl = BIT_EN_BCN_FUNCTION | BIT_DIS_TSF_UDT; 192 break; 193 case NL80211_IFTYPE_STATION: 194 rtw_add_rsvd_page_sta(rtwdev, rtwvif); 195 net_type = RTW_NET_NO_LINK; 196 bcn_ctrl = BIT_EN_BCN_FUNCTION; 197 break; 198 default: 199 WARN_ON(1); 200 clear_bit(rtwvif->port, rtwdev->hw_port); 201 mutex_unlock(&rtwdev->mutex); 202 return -EINVAL; 203 } 204 205 ether_addr_copy(rtwvif->mac_addr, vif->addr); 206 config |= PORT_SET_MAC_ADDR; 207 rtwvif->net_type = net_type; 208 config |= PORT_SET_NET_TYPE; 209 rtwvif->bcn_ctrl = bcn_ctrl; 210 config |= PORT_SET_BCN_CTRL; 211 rtw_vif_port_config(rtwdev, rtwvif, config); 212 rtw_core_port_switch(rtwdev, vif); 213 rtw_recalc_lps(rtwdev, vif); 214 215 mutex_unlock(&rtwdev->mutex); 216 217 rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %pM on port %d\n", vif->addr, rtwvif->port); 218 return 0; 219 } 220 221 static void rtw_ops_remove_interface(struct ieee80211_hw *hw, 222 struct ieee80211_vif *vif) 223 { 224 struct rtw_dev *rtwdev = hw->priv; 225 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 226 u32 config = 0; 227 228 rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %pM on port %d\n", vif->addr, rtwvif->port); 229 230 mutex_lock(&rtwdev->mutex); 231 232 rtw_leave_lps_deep(rtwdev); 233 234 rtw_txq_cleanup(rtwdev, vif->txq); 235 rtw_remove_rsvd_page(rtwdev, rtwvif); 236 237 eth_zero_addr(rtwvif->mac_addr); 238 config |= PORT_SET_MAC_ADDR; 239 rtwvif->net_type = RTW_NET_NO_LINK; 240 config |= PORT_SET_NET_TYPE; 241 rtwvif->bcn_ctrl = 0; 242 config |= PORT_SET_BCN_CTRL; 243 rtw_vif_port_config(rtwdev, rtwvif, config); 244 clear_bit(rtwvif->port, rtwdev->hw_port); 245 rtw_recalc_lps(rtwdev, NULL); 246 247 mutex_unlock(&rtwdev->mutex); 248 } 249 250 static int rtw_ops_change_interface(struct ieee80211_hw *hw, 251 struct ieee80211_vif *vif, 252 enum nl80211_iftype type, bool p2p) 253 { 254 struct rtw_dev *rtwdev = hw->priv; 255 256 rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n", 257 vif->addr, vif->type, type, vif->p2p, p2p); 258 259 rtw_ops_remove_interface(hw, vif); 260 261 vif->type = type; 262 vif->p2p = p2p; 263 264 return rtw_ops_add_interface(hw, vif); 265 } 266 267 static void rtw_ops_configure_filter(struct ieee80211_hw *hw, 268 unsigned int changed_flags, 269 unsigned int *new_flags, 270 u64 multicast) 271 { 272 struct rtw_dev *rtwdev = hw->priv; 273 274 *new_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_FCSFAIL | 275 FIF_BCN_PRBRESP_PROMISC; 276 277 mutex_lock(&rtwdev->mutex); 278 279 rtw_leave_lps_deep(rtwdev); 280 281 if (changed_flags & FIF_ALLMULTI) { 282 if (*new_flags & FIF_ALLMULTI) 283 rtwdev->hal.rcr |= BIT_AM | BIT_AB; 284 else 285 rtwdev->hal.rcr &= ~(BIT_AM | BIT_AB); 286 } 287 if (changed_flags & FIF_FCSFAIL) { 288 if (*new_flags & FIF_FCSFAIL) 289 rtwdev->hal.rcr |= BIT_ACRC32; 290 else 291 rtwdev->hal.rcr &= ~(BIT_ACRC32); 292 } 293 if (changed_flags & FIF_OTHER_BSS) { 294 if (*new_flags & FIF_OTHER_BSS) 295 rtwdev->hal.rcr |= BIT_AAP; 296 else 297 rtwdev->hal.rcr &= ~(BIT_AAP); 298 } 299 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { 300 if (*new_flags & FIF_BCN_PRBRESP_PROMISC) 301 rtwdev->hal.rcr &= ~(BIT_CBSSID_BCN | BIT_CBSSID_DATA); 302 else 303 rtwdev->hal.rcr |= BIT_CBSSID_BCN; 304 } 305 306 rtw_dbg(rtwdev, RTW_DBG_RX, 307 "config rx filter, changed=0x%08x, new=0x%08x, rcr=0x%08x\n", 308 changed_flags, *new_flags, rtwdev->hal.rcr); 309 310 rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr); 311 312 mutex_unlock(&rtwdev->mutex); 313 } 314 315 /* Only have one group of EDCA parameters now */ 316 static const u32 ac_to_edca_param[IEEE80211_NUM_ACS] = { 317 [IEEE80211_AC_VO] = REG_EDCA_VO_PARAM, 318 [IEEE80211_AC_VI] = REG_EDCA_VI_PARAM, 319 [IEEE80211_AC_BE] = REG_EDCA_BE_PARAM, 320 [IEEE80211_AC_BK] = REG_EDCA_BK_PARAM, 321 }; 322 323 static u8 rtw_aifsn_to_aifs(struct rtw_dev *rtwdev, 324 struct rtw_vif *rtwvif, u8 aifsn) 325 { 326 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); 327 u8 slot_time; 328 u8 sifs; 329 330 slot_time = vif->bss_conf.use_short_slot ? 9 : 20; 331 sifs = rtwdev->hal.current_band_type == RTW_BAND_5G ? 16 : 10; 332 333 return aifsn * slot_time + sifs; 334 } 335 336 static void __rtw_conf_tx(struct rtw_dev *rtwdev, 337 struct rtw_vif *rtwvif, u16 ac) 338 { 339 struct ieee80211_tx_queue_params *params = &rtwvif->tx_params[ac]; 340 u32 edca_param = ac_to_edca_param[ac]; 341 u8 ecw_max, ecw_min; 342 u8 aifs; 343 344 /* 2^ecw - 1 = cw; ecw = log2(cw + 1) */ 345 ecw_max = ilog2(params->cw_max + 1); 346 ecw_min = ilog2(params->cw_min + 1); 347 aifs = rtw_aifsn_to_aifs(rtwdev, rtwvif, params->aifs); 348 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_TXOP_LMT, params->txop); 349 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMAX, ecw_max); 350 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMIN, ecw_min); 351 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_AIFS, aifs); 352 } 353 354 static void rtw_conf_tx(struct rtw_dev *rtwdev, 355 struct rtw_vif *rtwvif) 356 { 357 u16 ac; 358 359 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 360 __rtw_conf_tx(rtwdev, rtwvif, ac); 361 } 362 363 static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw, 364 struct ieee80211_vif *vif, 365 struct ieee80211_bss_conf *conf, 366 u64 changed) 367 { 368 struct rtw_dev *rtwdev = hw->priv; 369 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 370 struct rtw_coex *coex = &rtwdev->coex; 371 struct rtw_coex_stat *coex_stat = &coex->stat; 372 u32 config = 0; 373 374 mutex_lock(&rtwdev->mutex); 375 376 rtw_leave_lps_deep(rtwdev); 377 378 if (changed & BSS_CHANGED_ASSOC) { 379 rtw_vif_assoc_changed(rtwvif, conf); 380 if (vif->cfg.assoc) { 381 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_FINISH); 382 383 rtw_fw_download_rsvd_page(rtwdev); 384 rtw_send_rsvd_page_h2c(rtwdev); 385 rtw_fw_default_port(rtwdev, rtwvif); 386 rtw_coex_media_status_notify(rtwdev, vif->cfg.assoc); 387 if (rtw_bf_support) 388 rtw_bf_assoc(rtwdev, vif, conf); 389 } else { 390 rtw_leave_lps(rtwdev); 391 rtw_bf_disassoc(rtwdev, vif, conf); 392 /* Abort ongoing scan if cancel_scan isn't issued 393 * when disconnected by peer 394 */ 395 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 396 rtw_hw_scan_abort(rtwdev); 397 398 } 399 400 config |= PORT_SET_NET_TYPE; 401 config |= PORT_SET_AID; 402 } 403 404 if (changed & BSS_CHANGED_BSSID) { 405 ether_addr_copy(rtwvif->bssid, conf->bssid); 406 config |= PORT_SET_BSSID; 407 if (!rtw_core_check_sta_active(rtwdev)) 408 rtw_clear_op_chan(rtwdev); 409 else 410 rtw_store_op_chan(rtwdev, true); 411 } 412 413 if (changed & BSS_CHANGED_BEACON_INT) { 414 if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_STATION) 415 coex_stat->wl_beacon_interval = conf->beacon_int; 416 } 417 418 if (changed & BSS_CHANGED_BEACON) { 419 rtw_set_dtim_period(rtwdev, conf->dtim_period); 420 rtw_fw_download_rsvd_page(rtwdev); 421 rtw_send_rsvd_page_h2c(rtwdev); 422 } 423 424 if (changed & BSS_CHANGED_BEACON_ENABLED) { 425 if (conf->enable_beacon) 426 rtw_write32_set(rtwdev, REG_FWHW_TXQ_CTRL, 427 BIT_EN_BCNQ_DL); 428 else 429 rtw_write32_clr(rtwdev, REG_FWHW_TXQ_CTRL, 430 BIT_EN_BCNQ_DL); 431 } 432 if (changed & BSS_CHANGED_CQM) 433 rtw_fw_beacon_filter_config(rtwdev, true, vif); 434 435 if (changed & BSS_CHANGED_MU_GROUPS) 436 rtw_chip_set_gid_table(rtwdev, vif, conf); 437 438 if (changed & BSS_CHANGED_ERP_SLOT) 439 rtw_conf_tx(rtwdev, rtwvif); 440 441 if (changed & BSS_CHANGED_PS) 442 rtw_recalc_lps(rtwdev, NULL); 443 444 rtw_vif_port_config(rtwdev, rtwvif, config); 445 446 mutex_unlock(&rtwdev->mutex); 447 } 448 449 static int rtw_ops_start_ap(struct ieee80211_hw *hw, 450 struct ieee80211_vif *vif, 451 struct ieee80211_bss_conf *link_conf) 452 { 453 struct rtw_dev *rtwdev = hw->priv; 454 const struct rtw_chip_info *chip = rtwdev->chip; 455 456 mutex_lock(&rtwdev->mutex); 457 rtw_write32_set(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 458 rtwdev->ap_active = true; 459 rtw_store_op_chan(rtwdev, true); 460 chip->ops->phy_calibration(rtwdev); 461 mutex_unlock(&rtwdev->mutex); 462 463 return 0; 464 } 465 466 static void rtw_ops_stop_ap(struct ieee80211_hw *hw, 467 struct ieee80211_vif *vif, 468 struct ieee80211_bss_conf *link_conf) 469 { 470 struct rtw_dev *rtwdev = hw->priv; 471 472 mutex_lock(&rtwdev->mutex); 473 rtw_write32_clr(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 474 rtwdev->ap_active = false; 475 if (!rtw_core_check_sta_active(rtwdev)) 476 rtw_clear_op_chan(rtwdev); 477 mutex_unlock(&rtwdev->mutex); 478 } 479 480 static int rtw_ops_conf_tx(struct ieee80211_hw *hw, 481 struct ieee80211_vif *vif, 482 unsigned int link_id, u16 ac, 483 const struct ieee80211_tx_queue_params *params) 484 { 485 struct rtw_dev *rtwdev = hw->priv; 486 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 487 488 mutex_lock(&rtwdev->mutex); 489 490 rtw_leave_lps_deep(rtwdev); 491 492 rtwvif->tx_params[ac] = *params; 493 __rtw_conf_tx(rtwdev, rtwvif, ac); 494 495 mutex_unlock(&rtwdev->mutex); 496 497 return 0; 498 } 499 500 static int rtw_ops_sta_add(struct ieee80211_hw *hw, 501 struct ieee80211_vif *vif, 502 struct ieee80211_sta *sta) 503 { 504 struct rtw_dev *rtwdev = hw->priv; 505 int ret = 0; 506 507 mutex_lock(&rtwdev->mutex); 508 ret = rtw_sta_add(rtwdev, sta, vif); 509 mutex_unlock(&rtwdev->mutex); 510 511 return ret; 512 } 513 514 static int rtw_ops_sta_remove(struct ieee80211_hw *hw, 515 struct ieee80211_vif *vif, 516 struct ieee80211_sta *sta) 517 { 518 struct rtw_dev *rtwdev = hw->priv; 519 520 mutex_lock(&rtwdev->mutex); 521 rtw_fw_beacon_filter_config(rtwdev, false, vif); 522 rtw_sta_remove(rtwdev, sta, true); 523 mutex_unlock(&rtwdev->mutex); 524 525 return 0; 526 } 527 528 static int rtw_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 529 bool set) 530 { 531 struct rtw_dev *rtwdev = hw->priv; 532 533 ieee80211_queue_work(hw, &rtwdev->update_beacon_work); 534 535 return 0; 536 } 537 538 static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 539 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 540 struct ieee80211_key_conf *key) 541 { 542 struct rtw_dev *rtwdev = hw->priv; 543 struct rtw_sec_desc *sec = &rtwdev->sec; 544 u8 hw_key_type; 545 u8 hw_key_idx; 546 int ret = 0; 547 548 switch (key->cipher) { 549 case WLAN_CIPHER_SUITE_WEP40: 550 hw_key_type = RTW_CAM_WEP40; 551 break; 552 case WLAN_CIPHER_SUITE_WEP104: 553 hw_key_type = RTW_CAM_WEP104; 554 break; 555 case WLAN_CIPHER_SUITE_TKIP: 556 hw_key_type = RTW_CAM_TKIP; 557 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 558 break; 559 case WLAN_CIPHER_SUITE_CCMP: 560 hw_key_type = RTW_CAM_AES; 561 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 562 break; 563 case WLAN_CIPHER_SUITE_AES_CMAC: 564 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 565 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 566 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 567 case WLAN_CIPHER_SUITE_CCMP_256: 568 case WLAN_CIPHER_SUITE_GCMP: 569 case WLAN_CIPHER_SUITE_GCMP_256: 570 /* suppress error messages */ 571 return -EOPNOTSUPP; 572 default: 573 return -ENOTSUPP; 574 } 575 576 mutex_lock(&rtwdev->mutex); 577 578 rtw_leave_lps_deep(rtwdev); 579 580 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 581 hw_key_idx = rtw_sec_get_free_cam(sec); 582 } else { 583 /* multiple interfaces? */ 584 hw_key_idx = key->keyidx; 585 } 586 587 if (hw_key_idx > sec->total_cam_num) { 588 ret = -ENOSPC; 589 goto out; 590 } 591 592 switch (cmd) { 593 case SET_KEY: 594 /* need sw generated IV */ 595 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 596 key->hw_key_idx = hw_key_idx; 597 rtw_sec_write_cam(rtwdev, sec, sta, key, 598 hw_key_type, hw_key_idx); 599 break; 600 case DISABLE_KEY: 601 rtw_hci_flush_all_queues(rtwdev, false); 602 rtw_mac_flush_all_queues(rtwdev, false); 603 rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx); 604 break; 605 } 606 607 /* download new cam settings for PG to backup */ 608 if (rtw_get_lps_deep_mode(rtwdev) == LPS_DEEP_MODE_PG) 609 rtw_fw_download_rsvd_page(rtwdev); 610 611 out: 612 mutex_unlock(&rtwdev->mutex); 613 614 return ret; 615 } 616 617 static int rtw_ops_ampdu_action(struct ieee80211_hw *hw, 618 struct ieee80211_vif *vif, 619 struct ieee80211_ampdu_params *params) 620 { 621 struct ieee80211_sta *sta = params->sta; 622 u16 tid = params->tid; 623 struct ieee80211_txq *txq = sta->txq[tid]; 624 struct rtw_txq *rtwtxq = (struct rtw_txq *)txq->drv_priv; 625 626 switch (params->action) { 627 case IEEE80211_AMPDU_TX_START: 628 return IEEE80211_AMPDU_TX_START_IMMEDIATE; 629 case IEEE80211_AMPDU_TX_STOP_CONT: 630 case IEEE80211_AMPDU_TX_STOP_FLUSH: 631 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 632 clear_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 633 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 634 break; 635 case IEEE80211_AMPDU_TX_OPERATIONAL: 636 set_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 637 break; 638 case IEEE80211_AMPDU_RX_START: 639 case IEEE80211_AMPDU_RX_STOP: 640 break; 641 default: 642 WARN_ON(1); 643 return -ENOTSUPP; 644 } 645 646 return 0; 647 } 648 649 static bool rtw_ops_can_aggregate_in_amsdu(struct ieee80211_hw *hw, 650 struct sk_buff *head, 651 struct sk_buff *skb) 652 { 653 struct rtw_dev *rtwdev = hw->priv; 654 struct rtw_hal *hal = &rtwdev->hal; 655 656 /* we don't want to enable TX AMSDU on 2.4G */ 657 if (hal->current_band_type == RTW_BAND_2G) 658 return false; 659 660 return true; 661 } 662 663 static void rtw_ops_sw_scan_start(struct ieee80211_hw *hw, 664 struct ieee80211_vif *vif, 665 const u8 *mac_addr) 666 { 667 struct rtw_dev *rtwdev = hw->priv; 668 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 669 670 mutex_lock(&rtwdev->mutex); 671 rtw_core_scan_start(rtwdev, rtwvif, mac_addr, false); 672 mutex_unlock(&rtwdev->mutex); 673 } 674 675 static void rtw_ops_sw_scan_complete(struct ieee80211_hw *hw, 676 struct ieee80211_vif *vif) 677 { 678 struct rtw_dev *rtwdev = hw->priv; 679 680 mutex_lock(&rtwdev->mutex); 681 rtw_core_scan_complete(rtwdev, vif, false); 682 mutex_unlock(&rtwdev->mutex); 683 } 684 685 static void rtw_ops_mgd_prepare_tx(struct ieee80211_hw *hw, 686 struct ieee80211_vif *vif, 687 struct ieee80211_prep_tx_info *info) 688 { 689 struct rtw_dev *rtwdev = hw->priv; 690 691 mutex_lock(&rtwdev->mutex); 692 rtw_leave_lps_deep(rtwdev); 693 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_START); 694 rtw_chip_prepare_tx(rtwdev); 695 mutex_unlock(&rtwdev->mutex); 696 } 697 698 static int rtw_ops_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 699 { 700 struct rtw_dev *rtwdev = hw->priv; 701 702 mutex_lock(&rtwdev->mutex); 703 rtwdev->rts_threshold = value; 704 mutex_unlock(&rtwdev->mutex); 705 706 return 0; 707 } 708 709 static void rtw_ops_sta_statistics(struct ieee80211_hw *hw, 710 struct ieee80211_vif *vif, 711 struct ieee80211_sta *sta, 712 struct station_info *sinfo) 713 { 714 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 715 716 sinfo->txrate = si->ra_report.txrate; 717 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 718 } 719 720 static void rtw_ops_flush(struct ieee80211_hw *hw, 721 struct ieee80211_vif *vif, 722 u32 queues, bool drop) 723 { 724 struct rtw_dev *rtwdev = hw->priv; 725 726 mutex_lock(&rtwdev->mutex); 727 rtw_leave_lps_deep(rtwdev); 728 729 rtw_hci_flush_queues(rtwdev, queues, drop); 730 rtw_mac_flush_queues(rtwdev, queues, drop); 731 mutex_unlock(&rtwdev->mutex); 732 } 733 734 struct rtw_iter_bitrate_mask_data { 735 struct rtw_dev *rtwdev; 736 struct ieee80211_vif *vif; 737 const struct cfg80211_bitrate_mask *mask; 738 }; 739 740 static void rtw_ra_mask_info_update_iter(void *data, struct ieee80211_sta *sta) 741 { 742 struct rtw_iter_bitrate_mask_data *br_data = data; 743 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 744 745 if (si->vif != br_data->vif) 746 return; 747 748 /* free previous mask setting */ 749 kfree(si->mask); 750 si->mask = kmemdup(br_data->mask, sizeof(struct cfg80211_bitrate_mask), 751 GFP_ATOMIC); 752 if (!si->mask) { 753 si->use_cfg_mask = false; 754 return; 755 } 756 757 si->use_cfg_mask = true; 758 rtw_update_sta_info(br_data->rtwdev, si, true); 759 } 760 761 static void rtw_ra_mask_info_update(struct rtw_dev *rtwdev, 762 struct ieee80211_vif *vif, 763 const struct cfg80211_bitrate_mask *mask) 764 { 765 struct rtw_iter_bitrate_mask_data br_data; 766 767 br_data.rtwdev = rtwdev; 768 br_data.vif = vif; 769 br_data.mask = mask; 770 rtw_iterate_stas(rtwdev, rtw_ra_mask_info_update_iter, &br_data); 771 } 772 773 static int rtw_ops_set_bitrate_mask(struct ieee80211_hw *hw, 774 struct ieee80211_vif *vif, 775 const struct cfg80211_bitrate_mask *mask) 776 { 777 struct rtw_dev *rtwdev = hw->priv; 778 779 mutex_lock(&rtwdev->mutex); 780 rtw_ra_mask_info_update(rtwdev, vif, mask); 781 mutex_unlock(&rtwdev->mutex); 782 783 return 0; 784 } 785 786 static int rtw_ops_set_antenna(struct ieee80211_hw *hw, 787 u32 tx_antenna, 788 u32 rx_antenna) 789 { 790 struct rtw_dev *rtwdev = hw->priv; 791 const struct rtw_chip_info *chip = rtwdev->chip; 792 int ret; 793 794 if (!chip->ops->set_antenna) 795 return -EOPNOTSUPP; 796 797 mutex_lock(&rtwdev->mutex); 798 ret = chip->ops->set_antenna(rtwdev, tx_antenna, rx_antenna); 799 mutex_unlock(&rtwdev->mutex); 800 801 return ret; 802 } 803 804 static int rtw_ops_get_antenna(struct ieee80211_hw *hw, 805 u32 *tx_antenna, 806 u32 *rx_antenna) 807 { 808 struct rtw_dev *rtwdev = hw->priv; 809 struct rtw_hal *hal = &rtwdev->hal; 810 811 *tx_antenna = hal->antenna_tx; 812 *rx_antenna = hal->antenna_rx; 813 814 return 0; 815 } 816 817 #ifdef CONFIG_PM 818 static int rtw_ops_suspend(struct ieee80211_hw *hw, 819 struct cfg80211_wowlan *wowlan) 820 { 821 struct rtw_dev *rtwdev = hw->priv; 822 int ret; 823 824 mutex_lock(&rtwdev->mutex); 825 ret = rtw_wow_suspend(rtwdev, wowlan); 826 if (ret) 827 rtw_err(rtwdev, "failed to suspend for wow %d\n", ret); 828 mutex_unlock(&rtwdev->mutex); 829 830 return ret ? 1 : 0; 831 } 832 833 static int rtw_ops_resume(struct ieee80211_hw *hw) 834 { 835 struct rtw_dev *rtwdev = hw->priv; 836 int ret; 837 838 mutex_lock(&rtwdev->mutex); 839 ret = rtw_wow_resume(rtwdev); 840 if (ret) 841 rtw_err(rtwdev, "failed to resume for wow %d\n", ret); 842 mutex_unlock(&rtwdev->mutex); 843 844 return ret ? 1 : 0; 845 } 846 847 static void rtw_ops_set_wakeup(struct ieee80211_hw *hw, bool enabled) 848 { 849 struct rtw_dev *rtwdev = hw->priv; 850 851 device_set_wakeup_enable(rtwdev->dev, enabled); 852 } 853 #endif 854 855 static void rtw_reconfig_complete(struct ieee80211_hw *hw, 856 enum ieee80211_reconfig_type reconfig_type) 857 { 858 struct rtw_dev *rtwdev = hw->priv; 859 860 mutex_lock(&rtwdev->mutex); 861 if (reconfig_type == IEEE80211_RECONFIG_TYPE_RESTART) 862 clear_bit(RTW_FLAG_RESTARTING, rtwdev->flags); 863 mutex_unlock(&rtwdev->mutex); 864 } 865 866 static int rtw_ops_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 867 struct ieee80211_scan_request *req) 868 { 869 struct rtw_dev *rtwdev = hw->priv; 870 int ret; 871 872 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 873 return 1; 874 875 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 876 return -EBUSY; 877 878 mutex_lock(&rtwdev->mutex); 879 rtw_hw_scan_start(rtwdev, vif, req); 880 ret = rtw_hw_scan_offload(rtwdev, vif, true); 881 if (ret) { 882 rtw_hw_scan_abort(rtwdev); 883 rtw_err(rtwdev, "HW scan failed with status: %d\n", ret); 884 } 885 mutex_unlock(&rtwdev->mutex); 886 887 return ret; 888 } 889 890 static void rtw_ops_cancel_hw_scan(struct ieee80211_hw *hw, 891 struct ieee80211_vif *vif) 892 { 893 struct rtw_dev *rtwdev = hw->priv; 894 895 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 896 return; 897 898 if (!test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 899 return; 900 901 mutex_lock(&rtwdev->mutex); 902 rtw_hw_scan_abort(rtwdev); 903 mutex_unlock(&rtwdev->mutex); 904 } 905 906 static int rtw_ops_set_sar_specs(struct ieee80211_hw *hw, 907 const struct cfg80211_sar_specs *sar) 908 { 909 struct rtw_dev *rtwdev = hw->priv; 910 911 mutex_lock(&rtwdev->mutex); 912 rtw_set_sar_specs(rtwdev, sar); 913 mutex_unlock(&rtwdev->mutex); 914 915 return 0; 916 } 917 918 static void rtw_ops_sta_rc_update(struct ieee80211_hw *hw, 919 struct ieee80211_vif *vif, 920 struct ieee80211_sta *sta, u32 changed) 921 { 922 struct rtw_dev *rtwdev = hw->priv; 923 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 924 925 if (changed & IEEE80211_RC_BW_CHANGED) 926 ieee80211_queue_work(rtwdev->hw, &si->rc_work); 927 } 928 929 const struct ieee80211_ops rtw_ops = { 930 .tx = rtw_ops_tx, 931 .wake_tx_queue = rtw_ops_wake_tx_queue, 932 .start = rtw_ops_start, 933 .stop = rtw_ops_stop, 934 .config = rtw_ops_config, 935 .add_interface = rtw_ops_add_interface, 936 .remove_interface = rtw_ops_remove_interface, 937 .change_interface = rtw_ops_change_interface, 938 .configure_filter = rtw_ops_configure_filter, 939 .bss_info_changed = rtw_ops_bss_info_changed, 940 .start_ap = rtw_ops_start_ap, 941 .stop_ap = rtw_ops_stop_ap, 942 .conf_tx = rtw_ops_conf_tx, 943 .sta_add = rtw_ops_sta_add, 944 .sta_remove = rtw_ops_sta_remove, 945 .set_tim = rtw_ops_set_tim, 946 .set_key = rtw_ops_set_key, 947 .ampdu_action = rtw_ops_ampdu_action, 948 .can_aggregate_in_amsdu = rtw_ops_can_aggregate_in_amsdu, 949 .sw_scan_start = rtw_ops_sw_scan_start, 950 .sw_scan_complete = rtw_ops_sw_scan_complete, 951 .mgd_prepare_tx = rtw_ops_mgd_prepare_tx, 952 .set_rts_threshold = rtw_ops_set_rts_threshold, 953 .sta_statistics = rtw_ops_sta_statistics, 954 .flush = rtw_ops_flush, 955 .set_bitrate_mask = rtw_ops_set_bitrate_mask, 956 .set_antenna = rtw_ops_set_antenna, 957 .get_antenna = rtw_ops_get_antenna, 958 .reconfig_complete = rtw_reconfig_complete, 959 .hw_scan = rtw_ops_hw_scan, 960 .cancel_hw_scan = rtw_ops_cancel_hw_scan, 961 .sta_rc_update = rtw_ops_sta_rc_update, 962 .set_sar_specs = rtw_ops_set_sar_specs, 963 #ifdef CONFIG_PM 964 .suspend = rtw_ops_suspend, 965 .resume = rtw_ops_resume, 966 .set_wakeup = rtw_ops_set_wakeup, 967 #endif 968 }; 969 EXPORT_SYMBOL(rtw_ops); 970