1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* Copyright(c) 2019-2022 Realtek Corporation 3 */ 4 #include "cam.h" 5 #include "core.h" 6 #include "debug.h" 7 #include "fw.h" 8 #include "mac.h" 9 #include "phy.h" 10 #include "ps.h" 11 #include "reg.h" 12 #include "util.h" 13 #include "wow.h" 14 15 static void rtw89_wow_leave_deep_ps(struct rtw89_dev *rtwdev) 16 { 17 __rtw89_leave_ps_mode(rtwdev); 18 } 19 20 static void rtw89_wow_enter_deep_ps(struct rtw89_dev *rtwdev) 21 { 22 struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; 23 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 24 25 __rtw89_enter_ps_mode(rtwdev, rtwvif); 26 } 27 28 static void rtw89_wow_enter_lps(struct rtw89_dev *rtwdev) 29 { 30 struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; 31 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 32 33 rtw89_enter_lps(rtwdev, rtwvif, false); 34 } 35 36 static void rtw89_wow_leave_lps(struct rtw89_dev *rtwdev) 37 { 38 rtw89_leave_lps(rtwdev); 39 } 40 41 static int rtw89_wow_config_mac(struct rtw89_dev *rtwdev, bool enable_wow) 42 { 43 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 44 int ret; 45 46 if (enable_wow) { 47 ret = rtw89_mac_resize_ple_rx_quota(rtwdev, true); 48 if (ret) { 49 rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret); 50 return ret; 51 } 52 rtw89_write32_set(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP); 53 rtw89_write32_clr(rtwdev, mac->rx_fltr, B_AX_SNIFFER_MODE); 54 rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 55 rtw89_write32(rtwdev, R_AX_ACTION_FWD0, 0); 56 rtw89_write32(rtwdev, R_AX_ACTION_FWD1, 0); 57 rtw89_write32(rtwdev, R_AX_TF_FWD, 0); 58 rtw89_write32(rtwdev, R_AX_HW_RPT_FWD, 0); 59 } else { 60 ret = rtw89_mac_resize_ple_rx_quota(rtwdev, false); 61 if (ret) { 62 rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret); 63 return ret; 64 } 65 rtw89_write32_clr(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP); 66 rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 67 rtw89_write32(rtwdev, R_AX_ACTION_FWD0, TRXCFG_MPDU_PROC_ACT_FRWD); 68 rtw89_write32(rtwdev, R_AX_TF_FWD, TRXCFG_MPDU_PROC_TF_FRWD); 69 } 70 71 return 0; 72 } 73 74 static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable) 75 { 76 enum rtw89_mac_fwd_target fwd_target = enable ? 77 RTW89_FWD_DONT_CARE : 78 RTW89_FWD_TO_HOST; 79 80 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0); 81 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0); 82 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0); 83 } 84 85 static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev) 86 { 87 enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id; 88 struct cfg80211_wowlan_nd_info nd_info; 89 struct cfg80211_wowlan_wakeup wakeup = { 90 .pattern_idx = -1, 91 }; 92 u32 wow_reason_reg; 93 u8 reason; 94 95 if (chip_id == RTL8852A || chip_id == RTL8852B || chip_id == RTL8851B) 96 wow_reason_reg = R_AX_C2HREG_DATA3 + 3; 97 else 98 wow_reason_reg = R_AX_C2HREG_DATA3_V1 + 3; 99 100 reason = rtw89_read8(rtwdev, wow_reason_reg); 101 102 switch (reason) { 103 case RTW89_WOW_RSN_RX_DEAUTH: 104 wakeup.disconnect = true; 105 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n"); 106 break; 107 case RTW89_WOW_RSN_DISCONNECT: 108 wakeup.disconnect = true; 109 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n"); 110 break; 111 case RTW89_WOW_RSN_RX_MAGIC_PKT: 112 wakeup.magic_pkt = true; 113 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n"); 114 break; 115 case RTW89_WOW_RSN_RX_GTK_REKEY: 116 wakeup.gtk_rekey_failure = true; 117 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n"); 118 break; 119 case RTW89_WOW_RSN_RX_PATTERN_MATCH: 120 /* Current firmware and driver don't report pattern index 121 * Use pattern_idx to 0 defaultly. 122 */ 123 wakeup.pattern_idx = 0; 124 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n"); 125 break; 126 case RTW89_WOW_RSN_RX_NLO: 127 /* Current firmware and driver don't report ssid index. 128 * Use 0 for n_matches based on its comment. 129 */ 130 nd_info.n_matches = 0; 131 wakeup.net_detect = &nd_info; 132 rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n"); 133 break; 134 default: 135 rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason); 136 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, NULL, 137 GFP_KERNEL); 138 return; 139 } 140 141 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, &wakeup, 142 GFP_KERNEL); 143 } 144 145 static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) 146 { 147 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 148 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); 149 150 /* Current wowlan function support setting of only one STATION vif. 151 * So when one suitable vif is found, stop the iteration. 152 */ 153 if (rtw_wow->wow_vif || vif->type != NL80211_IFTYPE_STATION) 154 return; 155 156 switch (rtwvif->net_type) { 157 case RTW89_NET_TYPE_INFRA: 158 rtw_wow->wow_vif = vif; 159 break; 160 case RTW89_NET_TYPE_NO_LINK: 161 default: 162 break; 163 } 164 } 165 166 static u16 __rtw89_cal_crc16(u8 data, u16 crc) 167 { 168 u8 shift_in, data_bit; 169 u8 crc_bit4, crc_bit11, crc_bit15; 170 u16 crc_result; 171 int index; 172 173 for (index = 0; index < 8; index++) { 174 crc_bit15 = crc & BIT(15) ? 1 : 0; 175 data_bit = data & BIT(index) ? 1 : 0; 176 shift_in = crc_bit15 ^ data_bit; 177 178 crc_result = crc << 1; 179 180 if (shift_in == 0) 181 crc_result &= ~BIT(0); 182 else 183 crc_result |= BIT(0); 184 185 crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in; 186 187 if (crc_bit11 == 0) 188 crc_result &= ~BIT(12); 189 else 190 crc_result |= BIT(12); 191 192 crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in; 193 194 if (crc_bit4 == 0) 195 crc_result &= ~BIT(5); 196 else 197 crc_result |= BIT(5); 198 199 crc = crc_result; 200 } 201 return crc; 202 } 203 204 static u16 rtw89_calc_crc(u8 *pdata, int length) 205 { 206 u16 crc = 0xffff; 207 int i; 208 209 for (i = 0; i < length; i++) 210 crc = __rtw89_cal_crc16(pdata[i], crc); 211 212 /* get 1' complement */ 213 return ~crc; 214 } 215 216 static int rtw89_wow_pattern_get_type(struct rtw89_vif *rtwvif, 217 struct rtw89_wow_cam_info *rtw_pattern, 218 const u8 *pattern, u8 da_mask) 219 { 220 u8 da[ETH_ALEN]; 221 222 ether_addr_copy_mask(da, pattern, da_mask); 223 224 /* Each pattern is divided into different kinds by DA address 225 * a. DA is broadcast address: set bc = 0; 226 * b. DA is multicast address: set mc = 0 227 * c. DA is unicast address same as dev's mac address: set uc = 0 228 * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0 229 * e. Others is invalid type. 230 */ 231 232 if (is_broadcast_ether_addr(da)) 233 rtw_pattern->bc = true; 234 else if (is_multicast_ether_addr(da)) 235 rtw_pattern->mc = true; 236 else if (ether_addr_equal(da, rtwvif->mac_addr) && 237 da_mask == GENMASK(5, 0)) 238 rtw_pattern->uc = true; 239 else if (!da_mask) /*da_mask == 0 mean wildcard*/ 240 return 0; 241 else 242 return -EPERM; 243 244 return 0; 245 } 246 247 static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev, 248 struct rtw89_vif *rtwvif, 249 const struct cfg80211_pkt_pattern *pkt_pattern, 250 struct rtw89_wow_cam_info *rtw_pattern) 251 { 252 u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0}; 253 u8 content[RTW89_MAX_PATTERN_SIZE] = {0}; 254 const u8 *mask; 255 const u8 *pattern; 256 u8 mask_len; 257 u16 count; 258 u32 len; 259 int i, ret; 260 261 pattern = pkt_pattern->pattern; 262 len = pkt_pattern->pattern_len; 263 mask = pkt_pattern->mask; 264 mask_len = DIV_ROUND_UP(len, 8); 265 memset(rtw_pattern, 0, sizeof(*rtw_pattern)); 266 267 ret = rtw89_wow_pattern_get_type(rtwvif, rtw_pattern, pattern, 268 mask[0] & GENMASK(5, 0)); 269 if (ret) 270 return ret; 271 272 /* translate mask from os to mask for hw 273 * pattern from OS uses 'ethenet frame', like this: 274 * | 6 | 6 | 2 | 20 | Variable | 4 | 275 * |--------+--------+------+-----------+------------+-----| 276 * | 802.3 Mac Header | IP Header | TCP Packet | FCS | 277 * | DA | SA | Type | 278 * 279 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC 280 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 | 281 * |-------------------+--------+------+-----------+------------+-----| 282 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS | 283 * | Others | Tpye | 284 * 285 * Therefore, we need translate mask_from_OS to mask_to_hw. 286 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0, 287 * because new mask[0~5] means 'SA', but our HW packet begins from LLC, 288 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match. 289 */ 290 291 /* Shift 6 bits */ 292 for (i = 0; i < mask_len - 1; i++) { 293 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) | 294 u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2; 295 } 296 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)); 297 298 /* Set bit 0-5 to zero */ 299 mask_hw[0] &= ~GENMASK(5, 0); 300 301 memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask)); 302 303 /* To get the wake up pattern from the mask. 304 * We do not count first 12 bits which means 305 * DA[6] and SA[6] in the pattern to match HW design. 306 */ 307 count = 0; 308 for (i = 12; i < len; i++) { 309 if ((mask[i / 8] >> (i % 8)) & 0x01) { 310 content[count] = pattern[i]; 311 count++; 312 } 313 } 314 315 rtw_pattern->crc = rtw89_calc_crc(content, count); 316 317 return 0; 318 } 319 320 static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev, 321 struct rtw89_vif *rtwvif, 322 struct cfg80211_wowlan *wowlan) 323 { 324 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 325 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 326 int i; 327 int ret; 328 329 if (!wowlan->n_patterns || !wowlan->patterns) 330 return 0; 331 332 for (i = 0; i < wowlan->n_patterns; i++) { 333 rtw_pattern = &rtw_wow->patterns[i]; 334 ret = rtw89_wow_pattern_generate(rtwdev, rtwvif, 335 &wowlan->patterns[i], 336 rtw_pattern); 337 if (ret) { 338 rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i); 339 rtw_wow->pattern_cnt = 0; 340 return ret; 341 } 342 343 rtw_pattern->r_w = true; 344 rtw_pattern->idx = i; 345 rtw_pattern->negative_pattern_match = false; 346 rtw_pattern->skip_mac_hdr = true; 347 rtw_pattern->valid = true; 348 } 349 rtw_wow->pattern_cnt = wowlan->n_patterns; 350 351 return 0; 352 } 353 354 static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev) 355 { 356 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 357 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 358 int i = 0; 359 360 for (i = 0; i < rtw_wow->pattern_cnt; i++) { 361 rtw_pattern = &rtw_wow->patterns[i]; 362 rtw_pattern->valid = false; 363 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern); 364 } 365 } 366 367 static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev) 368 { 369 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 370 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 371 int i; 372 373 for (i = 0; i < rtw_wow->pattern_cnt; i++) 374 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i); 375 } 376 377 static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev) 378 { 379 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 380 381 rtw89_wow_pattern_clear_cam(rtwdev); 382 383 rtw_wow->pattern_cnt = 0; 384 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns)); 385 } 386 387 static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev) 388 { 389 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 390 391 rtw_wow->wow_vif = NULL; 392 rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM); 393 rtw_wow->pattern_cnt = 0; 394 } 395 396 static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev, 397 struct cfg80211_wowlan *wowlan) 398 { 399 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 400 struct rtw89_vif *rtwvif; 401 402 if (wowlan->disconnect) 403 set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags); 404 if (wowlan->magic_pkt) 405 set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags); 406 407 rtw89_for_each_rtwvif(rtwdev, rtwvif) 408 rtw89_wow_vif_iter(rtwdev, rtwvif); 409 410 if (!rtw_wow->wow_vif) 411 return -EPERM; 412 413 rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 414 return rtw89_wow_parse_patterns(rtwdev, rtwvif, wowlan); 415 } 416 417 static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow) 418 { 419 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 420 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; 421 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 422 struct ieee80211_sta *wow_sta; 423 struct rtw89_sta *rtwsta = NULL; 424 int ret; 425 426 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); 427 if (wow_sta) 428 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; 429 430 if (wow) { 431 if (rtw_wow->pattern_cnt) 432 rtwvif->wowlan_pattern = true; 433 if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags)) 434 rtwvif->wowlan_magic = true; 435 } else { 436 rtwvif->wowlan_pattern = false; 437 rtwvif->wowlan_magic = false; 438 } 439 440 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif, wow); 441 if (ret) { 442 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 443 return ret; 444 } 445 446 if (wow) { 447 ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta); 448 if (ret) { 449 rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n", 450 ret); 451 return ret; 452 } 453 } 454 455 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); 456 if (ret) { 457 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 458 return ret; 459 } 460 461 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif, wow); 462 if (ret) { 463 rtw89_err(rtwdev, "failed to fw wow global\n"); 464 return ret; 465 } 466 467 return 0; 468 } 469 470 static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable) 471 { 472 u8 polling; 473 int ret; 474 475 ret = read_poll_timeout_atomic(rtw89_read8_mask, polling, 476 wow_enable == !!polling, 477 50, 50000, false, rtwdev, 478 R_AX_WOW_CTRL, B_AX_WOW_WOWEN); 479 if (ret) 480 rtw89_err(rtwdev, "failed to check wow status %s\n", 481 wow_enable ? "enabled" : "disabled"); 482 return ret; 483 } 484 485 static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow) 486 { 487 enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL; 488 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 489 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; 490 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 491 const struct rtw89_chip_info *chip = rtwdev->chip; 492 bool include_bb = !!chip->bbmcu_nr; 493 struct ieee80211_sta *wow_sta; 494 struct rtw89_sta *rtwsta = NULL; 495 bool is_conn = true; 496 int ret; 497 498 rtw89_hci_disable_intr(rtwdev); 499 500 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); 501 if (wow_sta) 502 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; 503 else 504 is_conn = false; 505 506 ret = rtw89_fw_download(rtwdev, fw_type, include_bb); 507 if (ret) { 508 rtw89_warn(rtwdev, "download fw failed\n"); 509 return ret; 510 } 511 512 rtw89_phy_init_rf_reg(rtwdev, true); 513 514 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, 515 RTW89_ROLE_FW_RESTORE); 516 if (ret) { 517 rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); 518 return ret; 519 } 520 521 ret = rtw89_fw_h2c_assoc_cmac_tbl(rtwdev, wow_vif, wow_sta); 522 if (ret) { 523 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); 524 return ret; 525 } 526 527 if (!is_conn) 528 rtw89_cam_reset_keys(rtwdev); 529 530 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn); 531 if (ret) { 532 rtw89_warn(rtwdev, "failed to send h2c join info\n"); 533 return ret; 534 } 535 536 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); 537 if (ret) { 538 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 539 return ret; 540 } 541 542 if (is_conn) { 543 ret = rtw89_fw_h2c_general_pkt(rtwdev, rtwvif, rtwsta->mac_id); 544 if (ret) { 545 rtw89_warn(rtwdev, "failed to send h2c general packet\n"); 546 return ret; 547 } 548 rtw89_phy_ra_assoc(rtwdev, wow_sta); 549 rtw89_phy_set_bss_color(rtwdev, wow_vif); 550 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, wow_vif); 551 } 552 553 rtw89_mac_hw_mgnt_sec(rtwdev, wow); 554 rtw89_hci_enable_intr(rtwdev); 555 556 return 0; 557 } 558 559 static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) 560 { 561 int ret; 562 563 rtw89_hci_ctrl_txdma_ch(rtwdev, false); 564 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); 565 566 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); 567 568 ret = rtw89_hci_poll_txdma_ch(rtwdev); 569 if (ret) { 570 rtw89_err(rtwdev, "txdma ch busy\n"); 571 return ret; 572 } 573 rtw89_wow_set_rx_filter(rtwdev, true); 574 575 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 576 if (ret) { 577 rtw89_err(rtwdev, "cfg ppdu status\n"); 578 return ret; 579 } 580 581 return 0; 582 } 583 584 static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) 585 { 586 int ret; 587 588 rtw89_hci_disable_intr(rtwdev); 589 rtw89_hci_ctrl_trxhci(rtwdev, false); 590 591 ret = rtw89_hci_poll_txdma_ch(rtwdev); 592 if (ret) { 593 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); 594 return ret; 595 } 596 597 ret = rtw89_wow_config_mac(rtwdev, true); 598 if (ret) { 599 rtw89_err(rtwdev, "failed to config mac\n"); 600 return ret; 601 } 602 603 rtw89_wow_set_rx_filter(rtwdev, false); 604 rtw89_hci_reset(rtwdev); 605 606 return 0; 607 } 608 609 static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) 610 { 611 int ret; 612 613 rtw89_hci_clr_idx_all(rtwdev); 614 615 ret = rtw89_hci_rst_bdram(rtwdev); 616 if (ret) { 617 rtw89_warn(rtwdev, "reset bdram busy\n"); 618 return ret; 619 } 620 621 rtw89_hci_ctrl_trxhci(rtwdev, true); 622 rtw89_hci_ctrl_txdma_ch(rtwdev, true); 623 624 ret = rtw89_wow_config_mac(rtwdev, false); 625 if (ret) { 626 rtw89_err(rtwdev, "failed to config mac\n"); 627 return ret; 628 } 629 rtw89_hci_enable_intr(rtwdev); 630 631 return 0; 632 } 633 634 static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) 635 { 636 int ret; 637 638 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 639 if (ret) 640 rtw89_err(rtwdev, "cfg ppdu status\n"); 641 642 return ret; 643 } 644 645 static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) 646 { 647 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 648 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 649 int ret; 650 651 rtw89_wow_pattern_write(rtwdev); 652 653 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, true); 654 if (ret) { 655 rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); 656 return ret; 657 } 658 659 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, true); 660 if (ret) { 661 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); 662 goto out; 663 } 664 665 ret = rtw89_wow_cfg_wake(rtwdev, true); 666 if (ret) { 667 rtw89_err(rtwdev, "wow: failed to config wake\n"); 668 goto out; 669 } 670 671 ret = rtw89_wow_check_fw_status(rtwdev, true); 672 if (ret) { 673 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); 674 goto out; 675 } 676 677 out: 678 return ret; 679 } 680 681 static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) 682 { 683 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 684 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 685 int ret; 686 687 rtw89_wow_pattern_clear(rtwdev); 688 689 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, false); 690 if (ret) { 691 rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); 692 goto out; 693 } 694 695 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, false); 696 if (ret) { 697 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); 698 goto out; 699 } 700 701 ret = rtw89_wow_cfg_wake(rtwdev, false); 702 if (ret) { 703 rtw89_err(rtwdev, "wow: failed to disable config wake\n"); 704 goto out; 705 } 706 707 rtw89_fw_release_general_pkt_list(rtwdev, true); 708 709 ret = rtw89_wow_check_fw_status(rtwdev, false); 710 if (ret) { 711 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); 712 goto out; 713 } 714 715 out: 716 return ret; 717 } 718 719 static int rtw89_wow_enable(struct rtw89_dev *rtwdev) 720 { 721 int ret; 722 723 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 724 725 ret = rtw89_wow_enable_trx_pre(rtwdev); 726 if (ret) { 727 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); 728 goto out; 729 } 730 731 rtw89_fw_release_general_pkt_list(rtwdev, true); 732 733 ret = rtw89_wow_swap_fw(rtwdev, true); 734 if (ret) { 735 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); 736 goto out; 737 } 738 739 ret = rtw89_wow_fw_start(rtwdev); 740 if (ret) { 741 rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); 742 goto out; 743 } 744 745 rtw89_wow_enter_lps(rtwdev); 746 747 ret = rtw89_wow_enable_trx_post(rtwdev); 748 if (ret) { 749 rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); 750 goto out; 751 } 752 753 return 0; 754 755 out: 756 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 757 return ret; 758 } 759 760 static int rtw89_wow_disable(struct rtw89_dev *rtwdev) 761 { 762 int ret; 763 764 ret = rtw89_wow_disable_trx_pre(rtwdev); 765 if (ret) { 766 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 767 goto out; 768 } 769 770 rtw89_wow_leave_lps(rtwdev); 771 772 ret = rtw89_wow_fw_stop(rtwdev); 773 if (ret) { 774 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); 775 goto out; 776 } 777 778 ret = rtw89_wow_swap_fw(rtwdev, false); 779 if (ret) { 780 rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); 781 goto out; 782 } 783 784 ret = rtw89_wow_disable_trx_post(rtwdev); 785 if (ret) { 786 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 787 goto out; 788 } 789 790 out: 791 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 792 return ret; 793 } 794 795 int rtw89_wow_resume(struct rtw89_dev *rtwdev) 796 { 797 int ret; 798 799 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { 800 rtw89_err(rtwdev, "wow is not enabled\n"); 801 ret = -EPERM; 802 goto out; 803 } 804 805 if (!rtw89_mac_get_power_state(rtwdev)) { 806 rtw89_err(rtwdev, "chip is no power when resume\n"); 807 ret = -EPERM; 808 goto out; 809 } 810 811 rtw89_wow_leave_deep_ps(rtwdev); 812 813 rtw89_wow_show_wakeup_reason(rtwdev); 814 815 ret = rtw89_wow_disable(rtwdev); 816 if (ret) 817 rtw89_err(rtwdev, "failed to disable wow\n"); 818 819 out: 820 rtw89_wow_clear_wakeups(rtwdev); 821 return ret; 822 } 823 824 int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) 825 { 826 int ret; 827 828 ret = rtw89_wow_set_wakeups(rtwdev, wowlan); 829 if (ret) { 830 rtw89_err(rtwdev, "failed to set wakeup event\n"); 831 return ret; 832 } 833 834 rtw89_wow_leave_lps(rtwdev); 835 836 ret = rtw89_wow_enable(rtwdev); 837 if (ret) { 838 rtw89_err(rtwdev, "failed to enable wow\n"); 839 return ret; 840 } 841 842 rtw89_wow_enter_deep_ps(rtwdev); 843 844 return 0; 845 } 846