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 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 74static 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 85static 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 145static 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 166static 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 204static 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 216static 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 247static 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 320static 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 354static 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 367static 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 377static 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 387static 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 396static 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 417static 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 470static 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 485static 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 struct ieee80211_sta *wow_sta; 492 struct rtw89_sta *rtwsta = NULL; 493 bool is_conn = true; 494 int ret; 495 496 rtw89_hci_disable_intr(rtwdev); 497 498 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); 499 if (wow_sta) 500 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; 501 else 502 is_conn = false; 503 504 ret = rtw89_fw_download(rtwdev, fw_type); 505 if (ret) { 506 rtw89_warn(rtwdev, "download fw failed\n"); 507 return ret; 508 } 509 510 rtw89_phy_init_rf_reg(rtwdev, true); 511 512 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, 513 RTW89_ROLE_FW_RESTORE); 514 if (ret) { 515 rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); 516 return ret; 517 } 518 519 ret = rtw89_fw_h2c_assoc_cmac_tbl(rtwdev, wow_vif, wow_sta); 520 if (ret) { 521 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); 522 return ret; 523 } 524 525 if (!is_conn) 526 rtw89_cam_reset_keys(rtwdev); 527 528 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn); 529 if (ret) { 530 rtw89_warn(rtwdev, "failed to send h2c join info\n"); 531 return ret; 532 } 533 534 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); 535 if (ret) { 536 rtw89_warn(rtwdev, "failed to send h2c cam\n"); 537 return ret; 538 } 539 540 if (is_conn) { 541 ret = rtw89_fw_h2c_general_pkt(rtwdev, rtwvif, rtwsta->mac_id); 542 if (ret) { 543 rtw89_warn(rtwdev, "failed to send h2c general packet\n"); 544 return ret; 545 } 546 rtw89_phy_ra_assoc(rtwdev, wow_sta); 547 rtw89_phy_set_bss_color(rtwdev, wow_vif); 548 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, wow_vif); 549 } 550 551 rtw89_mac_hw_mgnt_sec(rtwdev, wow); 552 rtw89_hci_enable_intr(rtwdev); 553 554 return 0; 555} 556 557static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) 558{ 559 int ret; 560 561 rtw89_hci_ctrl_txdma_ch(rtwdev, false); 562 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); 563 564 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); 565 566 ret = rtw89_hci_poll_txdma_ch(rtwdev); 567 if (ret) { 568 rtw89_err(rtwdev, "txdma ch busy\n"); 569 return ret; 570 } 571 rtw89_wow_set_rx_filter(rtwdev, true); 572 573 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); 574 if (ret) { 575 rtw89_err(rtwdev, "cfg ppdu status\n"); 576 return ret; 577 } 578 579 return 0; 580} 581 582static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) 583{ 584 int ret; 585 586 rtw89_hci_disable_intr(rtwdev); 587 rtw89_hci_ctrl_trxhci(rtwdev, false); 588 589 ret = rtw89_hci_poll_txdma_ch(rtwdev); 590 if (ret) { 591 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); 592 return ret; 593 } 594 595 ret = rtw89_wow_config_mac(rtwdev, true); 596 if (ret) { 597 rtw89_err(rtwdev, "failed to config mac\n"); 598 return ret; 599 } 600 601 rtw89_wow_set_rx_filter(rtwdev, false); 602 rtw89_hci_reset(rtwdev); 603 604 return 0; 605} 606 607static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) 608{ 609 int ret; 610 611 rtw89_hci_clr_idx_all(rtwdev); 612 613 ret = rtw89_hci_rst_bdram(rtwdev); 614 if (ret) { 615 rtw89_warn(rtwdev, "reset bdram busy\n"); 616 return ret; 617 } 618 619 rtw89_hci_ctrl_trxhci(rtwdev, true); 620 rtw89_hci_ctrl_txdma_ch(rtwdev, true); 621 622 ret = rtw89_wow_config_mac(rtwdev, false); 623 if (ret) { 624 rtw89_err(rtwdev, "failed to config mac\n"); 625 return ret; 626 } 627 rtw89_hci_enable_intr(rtwdev); 628 629 return 0; 630} 631 632static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) 633{ 634 int ret; 635 636 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); 637 if (ret) 638 rtw89_err(rtwdev, "cfg ppdu status\n"); 639 640 return ret; 641} 642 643static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) 644{ 645 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 646 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 647 int ret; 648 649 rtw89_wow_pattern_write(rtwdev); 650 651 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, true); 652 if (ret) { 653 rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); 654 return ret; 655 } 656 657 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, true); 658 if (ret) { 659 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); 660 goto out; 661 } 662 663 ret = rtw89_wow_cfg_wake(rtwdev, true); 664 if (ret) { 665 rtw89_err(rtwdev, "wow: failed to config wake\n"); 666 goto out; 667 } 668 669 ret = rtw89_wow_check_fw_status(rtwdev, true); 670 if (ret) { 671 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); 672 goto out; 673 } 674 675out: 676 return ret; 677} 678 679static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) 680{ 681 struct rtw89_wow_param *rtw_wow = &rtwdev->wow; 682 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; 683 int ret; 684 685 rtw89_wow_pattern_clear(rtwdev); 686 687 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, false); 688 if (ret) { 689 rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); 690 goto out; 691 } 692 693 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, false); 694 if (ret) { 695 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); 696 goto out; 697 } 698 699 ret = rtw89_wow_cfg_wake(rtwdev, false); 700 if (ret) { 701 rtw89_err(rtwdev, "wow: failed to disable config wake\n"); 702 goto out; 703 } 704 705 rtw89_fw_release_general_pkt_list(rtwdev, true); 706 707 ret = rtw89_wow_check_fw_status(rtwdev, false); 708 if (ret) { 709 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); 710 goto out; 711 } 712 713out: 714 return ret; 715} 716 717static int rtw89_wow_enable(struct rtw89_dev *rtwdev) 718{ 719 int ret; 720 721 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 722 723 ret = rtw89_wow_enable_trx_pre(rtwdev); 724 if (ret) { 725 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); 726 goto out; 727 } 728 729 rtw89_fw_release_general_pkt_list(rtwdev, true); 730 731 ret = rtw89_wow_swap_fw(rtwdev, true); 732 if (ret) { 733 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); 734 goto out; 735 } 736 737 ret = rtw89_wow_fw_start(rtwdev); 738 if (ret) { 739 rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); 740 goto out; 741 } 742 743 rtw89_wow_enter_lps(rtwdev); 744 745 ret = rtw89_wow_enable_trx_post(rtwdev); 746 if (ret) { 747 rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); 748 goto out; 749 } 750 751 return 0; 752 753out: 754 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 755 return ret; 756} 757 758static int rtw89_wow_disable(struct rtw89_dev *rtwdev) 759{ 760 int ret; 761 762 ret = rtw89_wow_disable_trx_pre(rtwdev); 763 if (ret) { 764 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 765 goto out; 766 } 767 768 rtw89_wow_leave_lps(rtwdev); 769 770 ret = rtw89_wow_fw_stop(rtwdev); 771 if (ret) { 772 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); 773 goto out; 774 } 775 776 ret = rtw89_wow_swap_fw(rtwdev, false); 777 if (ret) { 778 rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); 779 goto out; 780 } 781 782 ret = rtw89_wow_disable_trx_post(rtwdev); 783 if (ret) { 784 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); 785 goto out; 786 } 787 788out: 789 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); 790 return ret; 791} 792 793int rtw89_wow_resume(struct rtw89_dev *rtwdev) 794{ 795 int ret; 796 797 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { 798 rtw89_err(rtwdev, "wow is not enabled\n"); 799 ret = -EPERM; 800 goto out; 801 } 802 803 if (!rtw89_mac_get_power_state(rtwdev)) { 804 rtw89_err(rtwdev, "chip is no power when resume\n"); 805 ret = -EPERM; 806 goto out; 807 } 808 809 rtw89_wow_leave_deep_ps(rtwdev); 810 811 rtw89_wow_show_wakeup_reason(rtwdev); 812 813 ret = rtw89_wow_disable(rtwdev); 814 if (ret) 815 rtw89_err(rtwdev, "failed to disable wow\n"); 816 817out: 818 rtw89_wow_clear_wakeups(rtwdev); 819 return ret; 820} 821 822int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) 823{ 824 int ret; 825 826 ret = rtw89_wow_set_wakeups(rtwdev, wowlan); 827 if (ret) { 828 rtw89_err(rtwdev, "failed to set wakeup event\n"); 829 return ret; 830 } 831 832 rtw89_wow_leave_lps(rtwdev); 833 834 ret = rtw89_wow_enable(rtwdev); 835 if (ret) { 836 rtw89_err(rtwdev, "failed to enable wow\n"); 837 return ret; 838 } 839 840 rtw89_wow_enter_deep_ps(rtwdev); 841 842 return 0; 843} 844