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 15static void rtw89_wow_leave_deep_ps(struct rtw89_dev *rtwdev) 16{ 17 __rtw89_leave_ps_mode(rtwdev); 18} 19 20static 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 28static 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 36static void rtw89_wow_leave_lps(struct rtw89_dev *rtwdev) 37{ 38 rtw89_leave_lps(rtwdev); 39} 40 41static 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 45 return mac->wow_config_mac(rtwdev, enable_wow); 46} 47 48static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable) 49{ 50 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 51 enum rtw89_mac_fwd_target fwd_target = enable ? 52 RTW89_FWD_DONT_CARE : 53 RTW89_FWD_TO_HOST; 54 55 mac->typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0); 56 mac->typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0); 57 mac->typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0); 58} 59 60static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev) 61{ 62 u32 wow_reason_reg = rtwdev->chip->wow_reason_reg; 63 struct cfg80211_wowlan_nd_info nd_info; 64 struct cfg80211_wowlan_wakeup wakeup = { 65 .pattern_idx = -1, 66 }; 67 u8 reason; 68 69 reason = rtw89_read8(rtwdev, wow_reason_reg); 70 switch (reason) { 71 case RTW89_WOW_RSN_RX_DEAUTH: 72 wakeup.disconnect = true; 73 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n"); 74 break; 75 case RTW89_WOW_RSN_DISCONNECT: 76 wakeup.disconnect = true; 77 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n"); 78 break; 79 case RTW89_WOW_RSN_RX_MAGIC_PKT: 80 wakeup.magic_pkt = true; 81 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n"); 82 break; 83 case RTW89_WOW_RSN_RX_GTK_REKEY: 84 wakeup.gtk_rekey_failure = true; 85 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n"); 86 break; 87 case RTW89_WOW_RSN_RX_PATTERN_MATCH: 88 /* Current firmware and driver don't report pattern index 89 * Use pattern_idx to 0 defaultly. 90 */ 91 wakeup.pattern_idx = 0; 92 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n"); 93 break; 94 case RTW89_WOW_RSN_RX_NLO: 95 /* Current firmware and driver don't report ssid index. 96 * Use 0 for n_matches based on its comment. 97 */ 98 nd_info.n_matches = 0; 99 wakeup.net_detect = &nd_info; 100 rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n"); 101 break; 102 default: 103 rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason); 104 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, NULL, 105 GFP_KERNEL); 106 return; 107 } 108 109 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, &wakeup, 110 GFP_KERNEL); 111} 112 113static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) 114{ 115 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 116 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); 117 118 /* Current wowlan function support setting of only one STATION vif. 119 * So when one suitable vif is found, stop the iteration. 120 */ 121 if (rtw_wow->wow_vif || vif->type != NL80211_IFTYPE_STATION) 122 return; 123 124 switch (rtwvif->net_type) { 125 case RTW89_NET_TYPE_INFRA: 126 rtw_wow->wow_vif = vif; 127 break; 128 case RTW89_NET_TYPE_NO_LINK: 129 default: 130 break; 131 } 132} 133 134static u16 __rtw89_cal_crc16(u8 data, u16 crc) 135{ 136 u8 shift_in, data_bit; 137 u8 crc_bit4, crc_bit11, crc_bit15; 138 u16 crc_result; 139 int index; 140 141 for (index = 0; index < 8; index++) { 142 crc_bit15 = crc & BIT(15) ? 1 : 0; 143 data_bit = data & BIT(index) ? 1 : 0; 144 shift_in = crc_bit15 ^ data_bit; 145 146 crc_result = crc << 1; 147 148 if (shift_in == 0) 149 crc_result &= ~BIT(0); 150 else 151 crc_result |= BIT(0); 152 153 crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in; 154 155 if (crc_bit11 == 0) 156 crc_result &= ~BIT(12); 157 else 158 crc_result |= BIT(12); 159 160 crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in; 161 162 if (crc_bit4 == 0) 163 crc_result &= ~BIT(5); 164 else 165 crc_result |= BIT(5); 166 167 crc = crc_result; 168 } 169 return crc; 170} 171 172static u16 rtw89_calc_crc(u8 *pdata, int length) 173{ 174 u16 crc = 0xffff; 175 int i; 176 177 for (i = 0; i < length; i++) 178 crc = __rtw89_cal_crc16(pdata[i], crc); 179 180 /* get 1' complement */ 181 return ~crc; 182} 183 184static int rtw89_wow_pattern_get_type(struct rtw89_vif *rtwvif, 185 struct rtw89_wow_cam_info *rtw_pattern, 186 const u8 *pattern, u8 da_mask) 187{ 188 u8 da[ETH_ALEN]; 189 190 ether_addr_copy_mask(da, pattern, da_mask); 191 192 /* Each pattern is divided into different kinds by DA address 193 * a. DA is broadcast address: set bc = 0; 194 * b. DA is multicast address: set mc = 0 195 * c. DA is unicast address same as dev's mac address: set uc = 0 196 * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0 197 * e. Others is invalid type. 198 */ 199 200 if (is_broadcast_ether_addr(da)) 201 rtw_pattern->bc = true; 202 else if (is_multicast_ether_addr(da)) 203 rtw_pattern->mc = true; 204 else if (ether_addr_equal(da, rtwvif->mac_addr) && 205 da_mask == GENMASK(5, 0)) 206 rtw_pattern->uc = true; 207 else if (!da_mask) /*da_mask == 0 mean wildcard*/ 208 return 0; 209 else 210 return -EPERM; 211 212 return 0; 213} 214 215static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev, 216 struct rtw89_vif *rtwvif, 217 const struct cfg80211_pkt_pattern *pkt_pattern, 218 struct rtw89_wow_cam_info *rtw_pattern) 219{ 220 u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0}; 221 u8 content[RTW89_MAX_PATTERN_SIZE] = {0}; 222 const u8 *mask; 223 const u8 *pattern; 224 u8 mask_len; 225 u16 count; 226 u32 len; 227 int i, ret; 228 229 pattern = pkt_pattern->pattern; 230 len = pkt_pattern->pattern_len; 231 mask = pkt_pattern->mask; 232 mask_len = DIV_ROUND_UP(len, 8); 233 memset(rtw_pattern, 0, sizeof(*rtw_pattern)); 234 235 ret = rtw89_wow_pattern_get_type(rtwvif, rtw_pattern, pattern, 236 mask[0] & GENMASK(5, 0)); 237 if (ret) 238 return ret; 239 240 /* translate mask from os to mask for hw 241 * pattern from OS uses 'ethenet frame', like this: 242 * | 6 | 6 | 2 | 20 | Variable | 4 | 243 * |--------+--------+------+-----------+------------+-----| 244 * | 802.3 Mac Header | IP Header | TCP Packet | FCS | 245 * | DA | SA | Type | 246 * 247 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC 248 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 | 249 * |-------------------+--------+------+-----------+------------+-----| 250 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS | 251 * | Others | Tpye | 252 * 253 * Therefore, we need translate mask_from_OS to mask_to_hw. 254 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0, 255 * because new mask[0~5] means 'SA', but our HW packet begins from LLC, 256 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match. 257 */ 258 259 /* Shift 6 bits */ 260 for (i = 0; i < mask_len - 1; i++) { 261 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) | 262 u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2; 263 } 264 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)); 265 266 /* Set bit 0-5 to zero */ 267 mask_hw[0] &= ~GENMASK(5, 0); 268 269 memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask)); 270 271 /* To get the wake up pattern from the mask. 272 * We do not count first 12 bits which means 273 * DA[6] and SA[6] in the pattern to match HW design. 274 */ 275 count = 0; 276 for (i = 12; i < len; i++) { 277 if ((mask[i / 8] >> (i % 8)) & 0x01) { 278 content[count] = pattern[i]; 279 count++; 280 } 281 } 282 283 rtw_pattern->crc = rtw89_calc_crc(content, count); 284 285 return 0; 286} 287 288static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev, 289 struct rtw89_vif *rtwvif, 290 struct cfg80211_wowlan *wowlan) 291{ 292 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 293 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 294 int i; 295 int ret; 296 297 if (!wowlan->n_patterns || !wowlan->patterns) 298 return 0; 299 300 for (i = 0; i < wowlan->n_patterns; i++) { 301 rtw_pattern = &rtw_wow->patterns[i]; 302 ret = rtw89_wow_pattern_generate(rtwdev, rtwvif, 303 &wowlan->patterns[i], 304 rtw_pattern); 305 if (ret) { 306 rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i); 307 rtw_wow->pattern_cnt = 0; 308 return ret; 309 } 310 311 rtw_pattern->r_w = true; 312 rtw_pattern->idx = i; 313 rtw_pattern->negative_pattern_match = false; 314 rtw_pattern->skip_mac_hdr = true; 315 rtw_pattern->valid = true; 316 } 317 rtw_wow->pattern_cnt = wowlan->n_patterns; 318 319 return 0; 320} 321 322static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev) 323{ 324 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 325 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 326 int i = 0; 327 328 for (i = 0; i < rtw_wow->pattern_cnt; i++) { 329 rtw_pattern = &rtw_wow->patterns[i]; 330 rtw_pattern->valid = false; 331 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern); 332 } 333} 334 335static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev) 336{ 337 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 338 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; 339 int i; 340 341 for (i = 0; i < rtw_wow->pattern_cnt; i++) 342 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i); 343} 344 345static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev) 346{ 347 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 348 349 rtw89_wow_pattern_clear_cam(rtwdev); 350 351 rtw_wow->pattern_cnt = 0; 352 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns)); 353} 354 355static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev) 356{ 357 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 358 359 rtw_wow->wow_vif = NULL; 360 rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM); 361 rtw_wow->pattern_cnt = 0; 362} 363 364static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev, 365 struct cfg80211_wowlan *wowlan) 366{ 367 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 368 struct rtw89_vif *rtwvif; 369 370 if (wowlan->disconnect) 371 set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags); 372 if (wowlan->magic_pkt) 373 set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags); 374 375 rtw89_for_each_rtwvif(rtwdev, rtwvif) 376 rtw89_wow_vif_iter(rtwdev, rtwvif); 377 378 if (!rtw_wow->wow_vif) 379 return -EPERM; 380 381 rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 382 return rtw89_wow_parse_patterns(rtwdev, rtwvif, wowlan); 383} 384 385static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow) 386{ 387 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 388 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; 389 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 390 struct ieee80211_sta *wow_sta; 391 struct rtw89_sta *rtwsta = NULL; 392 int ret; 393 394 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); 395 if (wow_sta) 396 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; 397 398 if (wow) { 399 if (rtw_wow->pattern_cnt) 400 rtwvif->wowlan_pattern = true; 401 if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags)) 402 rtwvif->wowlan_magic = true; 403 } else { 404 rtwvif->wowlan_pattern = false; 405 rtwvif->wowlan_magic = false; 406 } 407 408 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif, wow); 409 if (ret) { 410 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); 411 return ret; 412 } 413 414 if (wow) { 415 ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta); 416 if (ret) { 417 rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n", 418 ret); 419 return ret; 420 } 421 } 422 423 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); 424 if (ret) { 425 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 426 return ret; 427 } 428 429 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif, wow); 430 if (ret) { 431 rtw89_err(rtwdev, "failed to fw wow global\n"); 432 return ret; 433 } 434 435 return 0; 436} 437 438static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable) 439{ 440 const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def; 441 u8 polling; 442 int ret; 443 444 ret = read_poll_timeout_atomic(rtw89_read8_mask, polling, 445 wow_enable == !!polling, 446 50, 50000, false, rtwdev, 447 mac->wow_ctrl.addr, mac->wow_ctrl.mask); 448 if (ret) 449 rtw89_err(rtwdev, "failed to check wow status %s\n", 450 wow_enable ? "enabled" : "disabled"); 451 return ret; 452} 453 454static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow) 455{ 456 enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL; 457 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 458 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; 459 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; 460 const struct rtw89_chip_info *chip = rtwdev->chip; 461 bool include_bb = !!chip->bbmcu_nr; 462 struct ieee80211_sta *wow_sta; 463 struct rtw89_sta *rtwsta = NULL; 464 bool is_conn = true; 465 int ret; 466 467 rtw89_hci_disable_intr(rtwdev); 468 469 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); 470 if (wow_sta) 471 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; 472 else 473 is_conn = false; 474 475 ret = rtw89_fw_download(rtwdev, fw_type, include_bb); 476 if (ret) { 477 rtw89_warn(rtwdev, "download fw failed\n"); 478 return ret; 479 } 480 481 rtw89_phy_init_rf_reg(rtwdev, true); 482 483 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, 484 RTW89_ROLE_FW_RESTORE); 485 if (ret) { 486 rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); 487 return ret; 488 } 489 490 ret = rtw89_chip_h2c_assoc_cmac_tbl(rtwdev, wow_vif, wow_sta); 491 if (ret) { 492 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); 493 return ret; 494 } 495 496 if (!is_conn) 497 rtw89_cam_reset_keys(rtwdev); 498 499 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn); 500 if (ret) { 501 rtw89_warn(rtwdev, "failed to send h2c join info\n"); 502 return ret; 503 } 504 505 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); 506 if (ret) { 507 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 508 return ret; 509 } 510 511 if (is_conn) { 512 ret = rtw89_fw_h2c_general_pkt(rtwdev, rtwvif, rtwsta->mac_id); 513 if (ret) { 514 rtw89_warn(rtwdev, "failed to send h2c general packet\n"); 515 return ret; 516 } 517 rtw89_phy_ra_assoc(rtwdev, wow_sta); 518 rtw89_phy_set_bss_color(rtwdev, wow_vif); 519 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, wow_vif); 520 } 521 522 rtw89_mac_hw_mgnt_sec(rtwdev, wow); 523 rtw89_hci_enable_intr(rtwdev); 524 525 return 0; 526} 527 528static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) 529{ 530 int ret; 531 532 rtw89_hci_ctrl_txdma_ch(rtwdev, false); 533 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); 534 535 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); 536 537 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 538 if (ret) { 539 rtw89_err(rtwdev, "txdma ch busy\n"); 540 return ret; 541 } 542 rtw89_wow_set_rx_filter(rtwdev, true); 543 544 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 545 if (ret) { 546 rtw89_err(rtwdev, "cfg ppdu status\n"); 547 return ret; 548 } 549 550 return 0; 551} 552 553static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) 554{ 555 int ret; 556 557 rtw89_hci_disable_intr(rtwdev); 558 rtw89_hci_ctrl_trxhci(rtwdev, false); 559 560 ret = rtw89_hci_poll_txdma_ch_idle(rtwdev); 561 if (ret) { 562 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); 563 return ret; 564 } 565 566 ret = rtw89_wow_config_mac(rtwdev, true); 567 if (ret) { 568 rtw89_err(rtwdev, "failed to config mac\n"); 569 return ret; 570 } 571 572 rtw89_wow_set_rx_filter(rtwdev, false); 573 rtw89_hci_reset(rtwdev); 574 575 return 0; 576} 577 578static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) 579{ 580 int ret; 581 582 rtw89_hci_clr_idx_all(rtwdev); 583 584 ret = rtw89_hci_rst_bdram(rtwdev); 585 if (ret) { 586 rtw89_warn(rtwdev, "reset bdram busy\n"); 587 return ret; 588 } 589 590 rtw89_hci_ctrl_trxhci(rtwdev, true); 591 rtw89_hci_ctrl_txdma_ch(rtwdev, true); 592 593 ret = rtw89_wow_config_mac(rtwdev, false); 594 if (ret) { 595 rtw89_err(rtwdev, "failed to config mac\n"); 596 return ret; 597 } 598 rtw89_hci_enable_intr(rtwdev); 599 600 return 0; 601} 602 603static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) 604{ 605 int ret; 606 607 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 608 if (ret) 609 rtw89_err(rtwdev, "cfg ppdu status\n"); 610 611 return ret; 612} 613 614static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) 615{ 616 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 617 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 618 int ret; 619 620 rtw89_wow_pattern_write(rtwdev); 621 622 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, true); 623 if (ret) { 624 rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); 625 return ret; 626 } 627 628 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, true); 629 if (ret) { 630 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); 631 goto out; 632 } 633 634 ret = rtw89_wow_cfg_wake(rtwdev, true); 635 if (ret) { 636 rtw89_err(rtwdev, "wow: failed to config wake\n"); 637 goto out; 638 } 639 640 ret = rtw89_wow_check_fw_status(rtwdev, true); 641 if (ret) { 642 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); 643 goto out; 644 } 645 646out: 647 return ret; 648} 649 650static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) 651{ 652 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 653 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 654 int ret; 655 656 rtw89_wow_pattern_clear(rtwdev); 657 658 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, false); 659 if (ret) { 660 rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); 661 goto out; 662 } 663 664 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, false); 665 if (ret) { 666 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); 667 goto out; 668 } 669 670 rtw89_fw_release_general_pkt_list(rtwdev, true); 671 672 ret = rtw89_wow_cfg_wake(rtwdev, false); 673 if (ret) { 674 rtw89_err(rtwdev, "wow: failed to disable config wake\n"); 675 goto out; 676 } 677 678 ret = rtw89_wow_check_fw_status(rtwdev, false); 679 if (ret) { 680 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); 681 goto out; 682 } 683 684out: 685 return ret; 686} 687 688static int rtw89_wow_enable(struct rtw89_dev *rtwdev) 689{ 690 int ret; 691 692 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 693 694 ret = rtw89_wow_enable_trx_pre(rtwdev); 695 if (ret) { 696 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); 697 goto out; 698 } 699 700 rtw89_fw_release_general_pkt_list(rtwdev, true); 701 702 ret = rtw89_wow_swap_fw(rtwdev, true); 703 if (ret) { 704 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); 705 goto out; 706 } 707 708 ret = rtw89_wow_fw_start(rtwdev); 709 if (ret) { 710 rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); 711 goto out; 712 } 713 714 rtw89_wow_enter_lps(rtwdev); 715 716 ret = rtw89_wow_enable_trx_post(rtwdev); 717 if (ret) { 718 rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); 719 goto out; 720 } 721 722 return 0; 723 724out: 725 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 726 return ret; 727} 728 729static int rtw89_wow_disable(struct rtw89_dev *rtwdev) 730{ 731 int ret; 732 733 ret = rtw89_wow_disable_trx_pre(rtwdev); 734 if (ret) { 735 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 736 goto out; 737 } 738 739 rtw89_wow_leave_lps(rtwdev); 740 741 ret = rtw89_wow_fw_stop(rtwdev); 742 if (ret) { 743 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); 744 goto out; 745 } 746 747 ret = rtw89_wow_swap_fw(rtwdev, false); 748 if (ret) { 749 rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); 750 goto out; 751 } 752 753 ret = rtw89_wow_disable_trx_post(rtwdev); 754 if (ret) { 755 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 756 goto out; 757 } 758 759out: 760 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 761 return ret; 762} 763 764int rtw89_wow_resume(struct rtw89_dev *rtwdev) 765{ 766 int ret; 767 768 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { 769 rtw89_err(rtwdev, "wow is not enabled\n"); 770 ret = -EPERM; 771 goto out; 772 } 773 774 if (!rtw89_mac_get_power_state(rtwdev)) { 775 rtw89_err(rtwdev, "chip is no power when resume\n"); 776 ret = -EPERM; 777 goto out; 778 } 779 780 rtw89_wow_leave_deep_ps(rtwdev); 781 782 rtw89_wow_show_wakeup_reason(rtwdev); 783 784 ret = rtw89_wow_disable(rtwdev); 785 if (ret) 786 rtw89_err(rtwdev, "failed to disable wow\n"); 787 788out: 789 rtw89_wow_clear_wakeups(rtwdev); 790 return ret; 791} 792 793int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) 794{ 795 int ret; 796 797 ret = rtw89_wow_set_wakeups(rtwdev, wowlan); 798 if (ret) { 799 rtw89_err(rtwdev, "failed to set wakeup event\n"); 800 return ret; 801 } 802 803 rtw89_wow_leave_lps(rtwdev); 804 805 ret = rtw89_wow_enable(rtwdev); 806 if (ret) { 807 rtw89_err(rtwdev, "failed to enable wow\n"); 808 return ret; 809 } 810 811 rtw89_wow_enter_deep_ps(rtwdev); 812 813 return 0; 814} 815