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, int radio_idx, 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 rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %pM mac_id %d on port %d\n", 224 vif->addr, rtwvif->mac_id, rtwvif->port); 225 return 0; 226 } 227 228 static void rtw_ops_remove_interface(struct ieee80211_hw *hw, 229 struct ieee80211_vif *vif) 230 { 231 struct rtw_dev *rtwdev = hw->priv; 232 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 233 u32 config = 0; 234 235 rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %pM mac_id %d on port %d\n", 236 vif->addr, rtwvif->mac_id, rtwvif->port); 237 238 mutex_lock(&rtwdev->mutex); 239 240 rtw_leave_lps_deep(rtwdev); 241 242 rtw_txq_cleanup(rtwdev, vif->txq); 243 rtw_remove_rsvd_page(rtwdev, rtwvif); 244 245 eth_zero_addr(rtwvif->mac_addr); 246 config |= PORT_SET_MAC_ADDR; 247 rtwvif->net_type = RTW_NET_NO_LINK; 248 config |= PORT_SET_NET_TYPE; 249 rtwvif->bcn_ctrl = 0; 250 config |= PORT_SET_BCN_CTRL; 251 rtw_vif_port_config(rtwdev, rtwvif, config); 252 clear_bit(rtwvif->port, rtwdev->hw_port); 253 rtw_release_macid(rtwdev, rtwvif->mac_id); 254 rtw_recalc_lps(rtwdev, NULL); 255 256 mutex_unlock(&rtwdev->mutex); 257 } 258 259 static int rtw_ops_change_interface(struct ieee80211_hw *hw, 260 struct ieee80211_vif *vif, 261 enum nl80211_iftype type, bool p2p) 262 { 263 struct rtw_dev *rtwdev = hw->priv; 264 265 rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n", 266 vif->addr, vif->type, type, vif->p2p, p2p); 267 268 rtw_ops_remove_interface(hw, vif); 269 270 vif->type = type; 271 vif->p2p = p2p; 272 273 return rtw_ops_add_interface(hw, vif); 274 } 275 276 static void rtw_ops_configure_filter(struct ieee80211_hw *hw, 277 unsigned int changed_flags, 278 unsigned int *new_flags, 279 u64 multicast) 280 { 281 struct rtw_dev *rtwdev = hw->priv; 282 283 *new_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_FCSFAIL | 284 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; 285 286 mutex_lock(&rtwdev->mutex); 287 288 rtw_leave_lps_deep(rtwdev); 289 290 if (changed_flags & FIF_CONTROL) { 291 if (*new_flags & FIF_CONTROL) 292 rtw_write16(rtwdev, REG_RXFLTMAP1, 0xffff); 293 else 294 rtw_write16(rtwdev, REG_RXFLTMAP1, rtwdev->hal.rxfltmap1); 295 } 296 if (changed_flags & FIF_ALLMULTI) { 297 if (*new_flags & FIF_ALLMULTI) 298 rtwdev->hal.rcr |= BIT_AM; 299 else 300 rtwdev->hal.rcr &= ~(BIT_AM); 301 } 302 if (changed_flags & FIF_FCSFAIL) { 303 if (*new_flags & FIF_FCSFAIL) 304 rtwdev->hal.rcr |= BIT_ACRC32; 305 else 306 rtwdev->hal.rcr &= ~(BIT_ACRC32); 307 } 308 if (changed_flags & FIF_OTHER_BSS) { 309 if (*new_flags & FIF_OTHER_BSS) 310 rtwdev->hal.rcr |= BIT_AAP; 311 else 312 rtwdev->hal.rcr &= ~(BIT_AAP); 313 } 314 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { 315 if (*new_flags & FIF_BCN_PRBRESP_PROMISC) 316 rtwdev->hal.rcr &= ~(BIT_CBSSID_BCN | BIT_CBSSID_DATA); 317 else 318 rtwdev->hal.rcr |= BIT_CBSSID_BCN; 319 } 320 321 rtw_dbg(rtwdev, RTW_DBG_RX, 322 "config rx filter, changed=0x%08x, new=0x%08x, rcr=0x%08x\n", 323 changed_flags, *new_flags, rtwdev->hal.rcr); 324 325 rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr); 326 327 mutex_unlock(&rtwdev->mutex); 328 } 329 330 /* Only have one group of EDCA parameters now */ 331 static const u32 ac_to_edca_param[IEEE80211_NUM_ACS] = { 332 [IEEE80211_AC_VO] = REG_EDCA_VO_PARAM, 333 [IEEE80211_AC_VI] = REG_EDCA_VI_PARAM, 334 [IEEE80211_AC_BE] = REG_EDCA_BE_PARAM, 335 [IEEE80211_AC_BK] = REG_EDCA_BK_PARAM, 336 }; 337 338 static u8 rtw_aifsn_to_aifs(struct rtw_dev *rtwdev, 339 struct rtw_vif *rtwvif, u8 aifsn) 340 { 341 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); 342 u8 slot_time; 343 u8 sifs; 344 345 slot_time = vif->bss_conf.use_short_slot ? 9 : 20; 346 sifs = rtwdev->hal.current_band_type == RTW_BAND_5G ? 16 : 10; 347 348 return aifsn * slot_time + sifs; 349 } 350 351 static void __rtw_conf_tx(struct rtw_dev *rtwdev, 352 struct rtw_vif *rtwvif, u16 ac) 353 { 354 struct ieee80211_tx_queue_params *params = &rtwvif->tx_params[ac]; 355 u32 edca_param = ac_to_edca_param[ac]; 356 u8 ecw_max, ecw_min; 357 u8 aifs; 358 359 /* 2^ecw - 1 = cw; ecw = log2(cw + 1) */ 360 ecw_max = ilog2(params->cw_max + 1); 361 ecw_min = ilog2(params->cw_min + 1); 362 aifs = rtw_aifsn_to_aifs(rtwdev, rtwvif, params->aifs); 363 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_TXOP_LMT, params->txop); 364 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMAX, ecw_max); 365 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_CWMIN, ecw_min); 366 rtw_write32_mask(rtwdev, edca_param, BIT_MASK_AIFS, aifs); 367 } 368 369 static void rtw_conf_tx(struct rtw_dev *rtwdev, 370 struct rtw_vif *rtwvif) 371 { 372 u16 ac; 373 374 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) 375 __rtw_conf_tx(rtwdev, rtwvif, ac); 376 } 377 378 static void rtw_ops_bss_info_changed(struct ieee80211_hw *hw, 379 struct ieee80211_vif *vif, 380 struct ieee80211_bss_conf *conf, 381 u64 changed) 382 { 383 struct rtw_dev *rtwdev = hw->priv; 384 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 385 struct rtw_coex *coex = &rtwdev->coex; 386 struct rtw_coex_stat *coex_stat = &coex->stat; 387 u32 config = 0; 388 389 mutex_lock(&rtwdev->mutex); 390 391 rtw_leave_lps_deep(rtwdev); 392 393 if (changed & BSS_CHANGED_ASSOC) { 394 rtw_vif_assoc_changed(rtwvif, conf); 395 if (vif->cfg.assoc) { 396 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_FINISH); 397 398 rtw_fw_download_rsvd_page(rtwdev); 399 rtw_send_rsvd_page_h2c(rtwdev); 400 rtw_fw_default_port(rtwdev, rtwvif); 401 rtw_coex_media_status_notify(rtwdev, vif->cfg.assoc); 402 if (rtw_bf_support) 403 rtw_bf_assoc(rtwdev, vif, conf); 404 405 rtw_set_ampdu_factor(rtwdev, vif, conf); 406 407 rtw_fw_beacon_filter_config(rtwdev, true, vif); 408 } else { 409 rtw_leave_lps(rtwdev); 410 rtw_bf_disassoc(rtwdev, vif, conf); 411 /* Abort ongoing scan if cancel_scan isn't issued 412 * when disconnected by peer 413 */ 414 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 415 rtw_hw_scan_abort(rtwdev); 416 417 } 418 419 config |= PORT_SET_NET_TYPE; 420 config |= PORT_SET_AID; 421 } 422 423 if (changed & BSS_CHANGED_BSSID) { 424 ether_addr_copy(rtwvif->bssid, conf->bssid); 425 config |= PORT_SET_BSSID; 426 if (!rtw_core_check_sta_active(rtwdev)) 427 rtw_clear_op_chan(rtwdev); 428 else 429 rtw_store_op_chan(rtwdev, true); 430 } 431 432 if (changed & BSS_CHANGED_BEACON_INT) { 433 if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_STATION) 434 coex_stat->wl_beacon_interval = conf->beacon_int; 435 } 436 437 if (changed & BSS_CHANGED_BEACON) { 438 rtw_set_dtim_period(rtwdev, conf->dtim_period); 439 rtw_fw_download_rsvd_page(rtwdev); 440 rtw_send_rsvd_page_h2c(rtwdev); 441 } 442 443 if (changed & BSS_CHANGED_BEACON_ENABLED) { 444 if (conf->enable_beacon) 445 rtw_write32_set(rtwdev, REG_FWHW_TXQ_CTRL, 446 BIT_EN_BCNQ_DL); 447 else 448 rtw_write32_clr(rtwdev, REG_FWHW_TXQ_CTRL, 449 BIT_EN_BCNQ_DL); 450 } 451 if (changed & BSS_CHANGED_CQM) 452 rtw_fw_beacon_filter_config(rtwdev, true, vif); 453 454 if (changed & BSS_CHANGED_MU_GROUPS) 455 rtw_chip_set_gid_table(rtwdev, vif, conf); 456 457 if (changed & BSS_CHANGED_ERP_SLOT) 458 rtw_conf_tx(rtwdev, rtwvif); 459 460 if (changed & BSS_CHANGED_PS) 461 rtw_recalc_lps(rtwdev, NULL); 462 463 rtw_vif_port_config(rtwdev, rtwvif, config); 464 465 mutex_unlock(&rtwdev->mutex); 466 } 467 468 static int rtw_ops_start_ap(struct ieee80211_hw *hw, 469 struct ieee80211_vif *vif, 470 struct ieee80211_bss_conf *link_conf) 471 { 472 struct rtw_dev *rtwdev = hw->priv; 473 const struct rtw_chip_info *chip = rtwdev->chip; 474 475 mutex_lock(&rtwdev->mutex); 476 rtw_write32_set(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 477 rtw_write16(rtwdev, REG_ATIMWND, ATIMWND_AP); 478 rtwdev->ap_active = true; 479 rtw_store_op_chan(rtwdev, true); 480 chip->ops->phy_calibration(rtwdev); 481 mutex_unlock(&rtwdev->mutex); 482 483 return 0; 484 } 485 486 static void rtw_ops_stop_ap(struct ieee80211_hw *hw, 487 struct ieee80211_vif *vif, 488 struct ieee80211_bss_conf *link_conf) 489 { 490 struct rtw_dev *rtwdev = hw->priv; 491 492 mutex_lock(&rtwdev->mutex); 493 rtw_write32_clr(rtwdev, REG_TCR, BIT_TCR_UPDATE_HGQMD); 494 rtw_write16(rtwdev, REG_ATIMWND, ATIMWND_DEFAULT); 495 rtwdev->ap_active = false; 496 if (!rtw_core_check_sta_active(rtwdev)) 497 rtw_clear_op_chan(rtwdev); 498 mutex_unlock(&rtwdev->mutex); 499 } 500 501 static int rtw_ops_conf_tx(struct ieee80211_hw *hw, 502 struct ieee80211_vif *vif, 503 unsigned int link_id, u16 ac, 504 const struct ieee80211_tx_queue_params *params) 505 { 506 struct rtw_dev *rtwdev = hw->priv; 507 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 508 509 mutex_lock(&rtwdev->mutex); 510 511 rtw_leave_lps_deep(rtwdev); 512 513 rtwvif->tx_params[ac] = *params; 514 __rtw_conf_tx(rtwdev, rtwvif, ac); 515 516 mutex_unlock(&rtwdev->mutex); 517 518 return 0; 519 } 520 521 static int rtw_ops_sta_add(struct ieee80211_hw *hw, 522 struct ieee80211_vif *vif, 523 struct ieee80211_sta *sta) 524 { 525 struct rtw_dev *rtwdev = hw->priv; 526 int ret = 0; 527 528 mutex_lock(&rtwdev->mutex); 529 ret = rtw_sta_add(rtwdev, sta, vif); 530 mutex_unlock(&rtwdev->mutex); 531 532 return ret; 533 } 534 535 static int rtw_ops_sta_remove(struct ieee80211_hw *hw, 536 struct ieee80211_vif *vif, 537 struct ieee80211_sta *sta) 538 { 539 struct rtw_dev *rtwdev = hw->priv; 540 541 mutex_lock(&rtwdev->mutex); 542 rtw_fw_beacon_filter_config(rtwdev, false, vif); 543 rtw_sta_remove(rtwdev, sta, true); 544 mutex_unlock(&rtwdev->mutex); 545 546 return 0; 547 } 548 549 static int rtw_ops_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, 550 bool set) 551 { 552 struct rtw_dev *rtwdev = hw->priv; 553 554 ieee80211_queue_work(hw, &rtwdev->update_beacon_work); 555 556 return 0; 557 } 558 559 static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 560 struct ieee80211_vif *vif, struct ieee80211_sta *sta, 561 struct ieee80211_key_conf *key) 562 { 563 struct rtw_dev *rtwdev = hw->priv; 564 struct rtw_sec_desc *sec = &rtwdev->sec; 565 u8 hw_key_type; 566 u8 hw_key_idx; 567 int ret = 0; 568 569 switch (key->cipher) { 570 case WLAN_CIPHER_SUITE_WEP40: 571 hw_key_type = RTW_CAM_WEP40; 572 break; 573 case WLAN_CIPHER_SUITE_WEP104: 574 hw_key_type = RTW_CAM_WEP104; 575 break; 576 case WLAN_CIPHER_SUITE_TKIP: 577 hw_key_type = RTW_CAM_TKIP; 578 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 579 break; 580 case WLAN_CIPHER_SUITE_CCMP: 581 hw_key_type = RTW_CAM_AES; 582 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; 583 break; 584 case WLAN_CIPHER_SUITE_AES_CMAC: 585 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 586 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 587 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 588 case WLAN_CIPHER_SUITE_CCMP_256: 589 case WLAN_CIPHER_SUITE_GCMP: 590 case WLAN_CIPHER_SUITE_GCMP_256: 591 /* suppress error messages */ 592 return -EOPNOTSUPP; 593 default: 594 return -ENOTSUPP; 595 } 596 597 mutex_lock(&rtwdev->mutex); 598 599 rtw_leave_lps_deep(rtwdev); 600 601 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 602 hw_key_idx = rtw_sec_get_free_cam(sec); 603 } else { 604 /* multiple interfaces? */ 605 hw_key_idx = key->keyidx; 606 } 607 608 if (hw_key_idx >= sec->total_cam_num) { 609 ret = -ENOSPC; 610 goto out; 611 } 612 613 switch (cmd) { 614 case SET_KEY: 615 /* need sw generated IV */ 616 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 617 key->hw_key_idx = hw_key_idx; 618 rtw_sec_write_cam(rtwdev, sec, sta, key, 619 hw_key_type, hw_key_idx); 620 break; 621 case DISABLE_KEY: 622 rtw_hci_flush_all_queues(rtwdev, false); 623 rtw_mac_flush_all_queues(rtwdev, false); 624 rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx); 625 break; 626 } 627 628 /* download new cam settings for PG to backup */ 629 if (rtw_get_lps_deep_mode(rtwdev) == LPS_DEEP_MODE_PG) 630 rtw_fw_download_rsvd_page(rtwdev); 631 632 out: 633 mutex_unlock(&rtwdev->mutex); 634 635 return ret; 636 } 637 638 static int rtw_ops_ampdu_action(struct ieee80211_hw *hw, 639 struct ieee80211_vif *vif, 640 struct ieee80211_ampdu_params *params) 641 { 642 struct ieee80211_sta *sta = params->sta; 643 u16 tid = params->tid; 644 struct ieee80211_txq *txq = sta->txq[tid]; 645 struct rtw_txq *rtwtxq = (struct rtw_txq *)txq->drv_priv; 646 647 switch (params->action) { 648 case IEEE80211_AMPDU_TX_START: 649 return IEEE80211_AMPDU_TX_START_IMMEDIATE; 650 case IEEE80211_AMPDU_TX_STOP_CONT: 651 case IEEE80211_AMPDU_TX_STOP_FLUSH: 652 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 653 clear_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 654 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 655 break; 656 case IEEE80211_AMPDU_TX_OPERATIONAL: 657 set_bit(RTW_TXQ_AMPDU, &rtwtxq->flags); 658 break; 659 case IEEE80211_AMPDU_RX_START: 660 case IEEE80211_AMPDU_RX_STOP: 661 break; 662 default: 663 WARN_ON(1); 664 return -ENOTSUPP; 665 } 666 667 return 0; 668 } 669 670 static bool rtw_ops_can_aggregate_in_amsdu(struct ieee80211_hw *hw, 671 struct sk_buff *head, 672 struct sk_buff *skb) 673 { 674 struct rtw_dev *rtwdev = hw->priv; 675 struct rtw_hal *hal = &rtwdev->hal; 676 677 /* we don't want to enable TX AMSDU on 2.4G */ 678 if (hal->current_band_type == RTW_BAND_2G) 679 return false; 680 681 return true; 682 } 683 684 static void rtw_ops_sw_scan_start(struct ieee80211_hw *hw, 685 struct ieee80211_vif *vif, 686 const u8 *mac_addr) 687 { 688 struct rtw_dev *rtwdev = hw->priv; 689 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; 690 691 mutex_lock(&rtwdev->mutex); 692 rtw_core_scan_start(rtwdev, rtwvif, mac_addr, false); 693 mutex_unlock(&rtwdev->mutex); 694 } 695 696 static void rtw_ops_sw_scan_complete(struct ieee80211_hw *hw, 697 struct ieee80211_vif *vif) 698 { 699 struct rtw_dev *rtwdev = hw->priv; 700 701 mutex_lock(&rtwdev->mutex); 702 rtw_core_scan_complete(rtwdev, vif, false); 703 mutex_unlock(&rtwdev->mutex); 704 } 705 706 static void rtw_ops_mgd_prepare_tx(struct ieee80211_hw *hw, 707 struct ieee80211_vif *vif, 708 struct ieee80211_prep_tx_info *info) 709 { 710 struct rtw_dev *rtwdev = hw->priv; 711 712 mutex_lock(&rtwdev->mutex); 713 rtw_leave_lps_deep(rtwdev); 714 rtw_coex_connect_notify(rtwdev, COEX_ASSOCIATE_START); 715 rtw_chip_prepare_tx(rtwdev); 716 mutex_unlock(&rtwdev->mutex); 717 } 718 719 static int rtw_ops_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx, 720 u32 value) 721 { 722 struct rtw_dev *rtwdev = hw->priv; 723 724 mutex_lock(&rtwdev->mutex); 725 rtwdev->rts_threshold = value; 726 mutex_unlock(&rtwdev->mutex); 727 728 return 0; 729 } 730 731 static void rtw_ops_sta_statistics(struct ieee80211_hw *hw, 732 struct ieee80211_vif *vif, 733 struct ieee80211_sta *sta, 734 struct station_info *sinfo) 735 { 736 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 737 738 sinfo->txrate = si->ra_report.txrate; 739 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 740 } 741 742 static void rtw_ops_flush(struct ieee80211_hw *hw, 743 struct ieee80211_vif *vif, 744 u32 queues, bool drop) 745 { 746 struct rtw_dev *rtwdev = hw->priv; 747 748 mutex_lock(&rtwdev->mutex); 749 rtw_leave_lps_deep(rtwdev); 750 751 rtw_hci_flush_queues(rtwdev, queues, drop); 752 rtw_mac_flush_queues(rtwdev, queues, drop); 753 mutex_unlock(&rtwdev->mutex); 754 } 755 756 struct rtw_iter_bitrate_mask_data { 757 struct rtw_dev *rtwdev; 758 struct ieee80211_vif *vif; 759 const struct cfg80211_bitrate_mask *mask; 760 }; 761 762 static void rtw_ra_mask_info_update_iter(void *data, struct ieee80211_sta *sta) 763 { 764 struct rtw_iter_bitrate_mask_data *br_data = data; 765 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 766 767 if (si->vif != br_data->vif) 768 return; 769 770 /* free previous mask setting */ 771 kfree(si->mask); 772 si->mask = kmemdup(br_data->mask, sizeof(struct cfg80211_bitrate_mask), 773 GFP_ATOMIC); 774 if (!si->mask) { 775 si->use_cfg_mask = false; 776 return; 777 } 778 779 si->use_cfg_mask = true; 780 rtw_update_sta_info(br_data->rtwdev, si, true); 781 } 782 783 static void rtw_ra_mask_info_update(struct rtw_dev *rtwdev, 784 struct ieee80211_vif *vif, 785 const struct cfg80211_bitrate_mask *mask) 786 { 787 struct rtw_iter_bitrate_mask_data br_data; 788 789 br_data.rtwdev = rtwdev; 790 br_data.vif = vif; 791 br_data.mask = mask; 792 rtw_iterate_stas(rtwdev, rtw_ra_mask_info_update_iter, &br_data); 793 } 794 795 static int rtw_ops_set_bitrate_mask(struct ieee80211_hw *hw, 796 struct ieee80211_vif *vif, 797 const struct cfg80211_bitrate_mask *mask) 798 { 799 struct rtw_dev *rtwdev = hw->priv; 800 801 mutex_lock(&rtwdev->mutex); 802 rtw_ra_mask_info_update(rtwdev, vif, mask); 803 mutex_unlock(&rtwdev->mutex); 804 805 return 0; 806 } 807 808 static int rtw_ops_set_antenna(struct ieee80211_hw *hw, 809 int radio_idx, 810 u32 tx_antenna, 811 u32 rx_antenna) 812 { 813 struct rtw_dev *rtwdev = hw->priv; 814 const struct rtw_chip_info *chip = rtwdev->chip; 815 int ret; 816 817 if (!chip->ops->set_antenna) 818 return -EOPNOTSUPP; 819 820 mutex_lock(&rtwdev->mutex); 821 ret = chip->ops->set_antenna(rtwdev, -1, tx_antenna, rx_antenna); 822 mutex_unlock(&rtwdev->mutex); 823 824 return ret; 825 } 826 827 static int rtw_ops_get_antenna(struct ieee80211_hw *hw, 828 int radio_idx, 829 u32 *tx_antenna, 830 u32 *rx_antenna) 831 { 832 struct rtw_dev *rtwdev = hw->priv; 833 struct rtw_hal *hal = &rtwdev->hal; 834 835 *tx_antenna = hal->antenna_tx; 836 *rx_antenna = hal->antenna_rx; 837 838 return 0; 839 } 840 841 #ifdef CONFIG_PM 842 static int rtw_ops_suspend(struct ieee80211_hw *hw, 843 struct cfg80211_wowlan *wowlan) 844 { 845 struct rtw_dev *rtwdev = hw->priv; 846 int ret; 847 848 mutex_lock(&rtwdev->mutex); 849 ret = rtw_wow_suspend(rtwdev, wowlan); 850 if (ret) 851 rtw_err(rtwdev, "failed to suspend for wow %d\n", ret); 852 mutex_unlock(&rtwdev->mutex); 853 854 return ret ? 1 : 0; 855 } 856 857 static int rtw_ops_resume(struct ieee80211_hw *hw) 858 { 859 struct rtw_dev *rtwdev = hw->priv; 860 int ret; 861 862 mutex_lock(&rtwdev->mutex); 863 ret = rtw_wow_resume(rtwdev); 864 if (ret) 865 rtw_err(rtwdev, "failed to resume for wow %d\n", ret); 866 mutex_unlock(&rtwdev->mutex); 867 868 return ret ? 1 : 0; 869 } 870 871 static void rtw_ops_set_wakeup(struct ieee80211_hw *hw, bool enabled) 872 { 873 struct rtw_dev *rtwdev = hw->priv; 874 875 device_set_wakeup_enable(rtwdev->dev, enabled); 876 } 877 #endif 878 879 static void rtw_reconfig_complete(struct ieee80211_hw *hw, 880 enum ieee80211_reconfig_type reconfig_type) 881 { 882 struct rtw_dev *rtwdev = hw->priv; 883 884 mutex_lock(&rtwdev->mutex); 885 if (reconfig_type == IEEE80211_RECONFIG_TYPE_RESTART) 886 clear_bit(RTW_FLAG_RESTARTING, rtwdev->flags); 887 mutex_unlock(&rtwdev->mutex); 888 } 889 890 static int rtw_ops_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 891 struct ieee80211_scan_request *req) 892 { 893 struct rtw_dev *rtwdev = hw->priv; 894 int ret; 895 896 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 897 return 1; 898 899 if (test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 900 return -EBUSY; 901 902 mutex_lock(&rtwdev->mutex); 903 rtw_hw_scan_start(rtwdev, vif, req); 904 ret = rtw_hw_scan_offload(rtwdev, vif, true); 905 if (ret) { 906 rtw_hw_scan_abort(rtwdev); 907 rtw_err(rtwdev, "HW scan failed with status: %d\n", ret); 908 } 909 mutex_unlock(&rtwdev->mutex); 910 911 return ret; 912 } 913 914 static void rtw_ops_cancel_hw_scan(struct ieee80211_hw *hw, 915 struct ieee80211_vif *vif) 916 { 917 struct rtw_dev *rtwdev = hw->priv; 918 919 if (!rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD)) 920 return; 921 922 if (!test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) 923 return; 924 925 mutex_lock(&rtwdev->mutex); 926 rtw_hw_scan_abort(rtwdev); 927 mutex_unlock(&rtwdev->mutex); 928 } 929 930 static int rtw_ops_set_sar_specs(struct ieee80211_hw *hw, 931 const struct cfg80211_sar_specs *sar) 932 { 933 struct rtw_dev *rtwdev = hw->priv; 934 935 mutex_lock(&rtwdev->mutex); 936 rtw_set_sar_specs(rtwdev, sar); 937 mutex_unlock(&rtwdev->mutex); 938 939 return 0; 940 } 941 942 static void rtw_ops_sta_rc_update(struct ieee80211_hw *hw, 943 struct ieee80211_vif *vif, 944 struct ieee80211_link_sta *link_sta, 945 u32 changed) 946 { 947 struct ieee80211_sta *sta = link_sta->sta; 948 struct rtw_dev *rtwdev = hw->priv; 949 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv; 950 951 if (changed & IEEE80211_RC_BW_CHANGED) 952 ieee80211_queue_work(rtwdev->hw, &si->rc_work); 953 } 954 955 const struct ieee80211_ops rtw_ops = { 956 .add_chanctx = ieee80211_emulate_add_chanctx, 957 .remove_chanctx = ieee80211_emulate_remove_chanctx, 958 .change_chanctx = ieee80211_emulate_change_chanctx, 959 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx, 960 .tx = rtw_ops_tx, 961 .wake_tx_queue = rtw_ops_wake_tx_queue, 962 .start = rtw_ops_start, 963 .stop = rtw_ops_stop, 964 .config = rtw_ops_config, 965 .add_interface = rtw_ops_add_interface, 966 .remove_interface = rtw_ops_remove_interface, 967 .change_interface = rtw_ops_change_interface, 968 .configure_filter = rtw_ops_configure_filter, 969 .bss_info_changed = rtw_ops_bss_info_changed, 970 .start_ap = rtw_ops_start_ap, 971 .stop_ap = rtw_ops_stop_ap, 972 .conf_tx = rtw_ops_conf_tx, 973 .sta_add = rtw_ops_sta_add, 974 .sta_remove = rtw_ops_sta_remove, 975 .set_tim = rtw_ops_set_tim, 976 .set_key = rtw_ops_set_key, 977 .ampdu_action = rtw_ops_ampdu_action, 978 .can_aggregate_in_amsdu = rtw_ops_can_aggregate_in_amsdu, 979 .sw_scan_start = rtw_ops_sw_scan_start, 980 .sw_scan_complete = rtw_ops_sw_scan_complete, 981 .mgd_prepare_tx = rtw_ops_mgd_prepare_tx, 982 .set_rts_threshold = rtw_ops_set_rts_threshold, 983 .sta_statistics = rtw_ops_sta_statistics, 984 .flush = rtw_ops_flush, 985 .set_bitrate_mask = rtw_ops_set_bitrate_mask, 986 .set_antenna = rtw_ops_set_antenna, 987 .get_antenna = rtw_ops_get_antenna, 988 .reconfig_complete = rtw_reconfig_complete, 989 .hw_scan = rtw_ops_hw_scan, 990 .cancel_hw_scan = rtw_ops_cancel_hw_scan, 991 .link_sta_rc_update = rtw_ops_sta_rc_update, 992 .set_sar_specs = rtw_ops_set_sar_specs, 993 #ifdef CONFIG_PM 994 .suspend = rtw_ops_suspend, 995 .resume = rtw_ops_resume, 996 .set_wakeup = rtw_ops_set_wakeup, 997 #endif 998 }; 999 EXPORT_SYMBOL(rtw_ops); 1000