1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /* Copyright(c) 2018-2019 Realtek Corporation
13 static void rtw_wow_show_wakeup_reason(struct rtw_dev *rtwdev)
17 reason = rtw_read8(rtwdev, REG_WOWLAN_WAKE_REASON);
19 if (reason == RTW_WOW_RSN_RX_DEAUTH)
20 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: Rx deauth\n");
21 else if (reason == RTW_WOW_RSN_DISCONNECT)
22 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: AP is off\n");
23 else if (reason == RTW_WOW_RSN_RX_MAGIC_PKT)
24 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: Rx magic packet\n");
25 else if (reason == RTW_WOW_RSN_RX_GTK_REKEY)
26 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: Rx gtk rekey\n");
27 else if (reason == RTW_WOW_RSN_RX_PTK_REKEY)
28 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: Rx ptk rekey\n");
29 else if (reason == RTW_WOW_RSN_RX_PATTERN_MATCH)
30 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: Rx pattern match packet\n");
31 else if (reason == RTW_WOW_RSN_RX_NLO)
32 rtw_dbg(rtwdev, RTW_DBG_WOW, "Rx NLO\n");
34 rtw_warn(rtwdev, "Unknown wakeup reason %x\n", reason);
37 static void rtw_wow_pattern_write_cam(struct rtw_dev *rtwdev, u8 addr,
40 rtw_write32(rtwdev, REG_WKFMCAM_RWD, wdata);
41 rtw_write32(rtwdev, REG_WKFMCAM_CMD, BIT_WKFCAM_POLLING_V1 |
42 BIT_WKFCAM_WE | BIT_WKFCAM_ADDR_V2(addr));
44 if (!check_hw_ready(rtwdev, REG_WKFMCAM_CMD, BIT_WKFCAM_POLLING_V1, 0))
45 rtw_err(rtwdev, "failed to write pattern cam\n");
48 static void rtw_wow_pattern_write_cam_ent(struct rtw_dev *rtwdev, u8 id,
49 struct rtw_wow_pattern *rtw_pattern)
55 for (i = 0; i < RTW_MAX_PATTERN_MASK_SIZE / 4; i++) {
57 wdata = rtw_pattern->mask[i * 4];
58 wdata |= rtw_pattern->mask[i * 4 + 1] << 8;
59 wdata |= rtw_pattern->mask[i * 4 + 2] << 16;
60 wdata |= rtw_pattern->mask[i * 4 + 3] << 24;
61 rtw_wow_pattern_write_cam(rtwdev, addr, wdata);
64 wdata = rtw_pattern->crc;
65 addr = (id << 3) + RTW_MAX_PATTERN_MASK_SIZE / 4;
67 switch (rtw_pattern->type) {
68 case RTW_PATTERN_BROADCAST:
69 wdata |= BIT_WKFMCAM_BC | BIT_WKFMCAM_VALID;
71 case RTW_PATTERN_MULTICAST:
72 wdata |= BIT_WKFMCAM_MC | BIT_WKFMCAM_VALID;
74 case RTW_PATTERN_UNICAST:
75 wdata |= BIT_WKFMCAM_UC | BIT_WKFMCAM_VALID;
80 rtw_wow_pattern_write_cam(rtwdev, addr, wdata);
83 /* RTK internal CRC16 for Pattern Cam */
84 static u16 __rtw_cal_crc16(u8 data, u16 crc)
86 u8 shift_in, data_bit;
87 u8 crc_bit4, crc_bit11, crc_bit15;
91 for (index = 0; index < 8; index++) {
92 crc_bit15 = ((crc & BIT(15)) ? 1 : 0);
93 data_bit = (data & (BIT(0) << index) ? 1 : 0);
94 shift_in = crc_bit15 ^ data_bit;
96 crc_result = crc << 1;
99 crc_result &= (~BIT(0));
101 crc_result |= BIT(0);
103 crc_bit11 = ((crc & BIT(11)) ? 1 : 0) ^ shift_in;
106 crc_result &= (~BIT(12));
108 crc_result |= BIT(12);
110 crc_bit4 = ((crc & BIT(4)) ? 1 : 0) ^ shift_in;
113 crc_result &= (~BIT(5));
115 crc_result |= BIT(5);
122 static u16 rtw_calc_crc(u8 *pdata, int length)
127 for (i = 0; i < length; i++)
128 crc = __rtw_cal_crc16(pdata[i], crc);
130 /* get 1' complement */
134 static void rtw_wow_pattern_generate(struct rtw_dev *rtwdev,
135 struct rtw_vif *rtwvif,
136 const struct cfg80211_pkt_pattern *pkt_pattern,
137 struct rtw_wow_pattern *rtw_pattern)
141 u8 mask_hw[RTW_MAX_PATTERN_MASK_SIZE] = {0};
142 u8 content[RTW_MAX_PATTERN_SIZE] = {0};
143 u8 mac_addr[ETH_ALEN] = {0};
149 pattern = pkt_pattern->pattern;
150 len = pkt_pattern->pattern_len;
151 mask = pkt_pattern->mask;
153 ether_addr_copy(mac_addr, rtwvif->mac_addr);
154 memset(rtw_pattern, 0, sizeof(*rtw_pattern));
156 mask_len = DIV_ROUND_UP(len, 8);
158 if (is_broadcast_ether_addr(pattern))
159 rtw_pattern->type = RTW_PATTERN_BROADCAST;
160 else if (is_multicast_ether_addr(pattern))
161 rtw_pattern->type = RTW_PATTERN_MULTICAST;
162 else if (ether_addr_equal(pattern, mac_addr))
163 rtw_pattern->type = RTW_PATTERN_UNICAST;
165 rtw_pattern->type = RTW_PATTERN_INVALID;
167 /* translate mask from os to mask for hw
168 * pattern from OS uses 'ethenet frame', like this:
169 * | 6 | 6 | 2 | 20 | Variable | 4 |
170 * |--------+--------+------+-----------+------------+-----|
171 * | 802.3 Mac Header | IP Header | TCP Packet | FCS |
174 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC
175 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 |
176 * |-------------------+--------+------+-----------+------------+-----|
177 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS |
180 * Therefore, we need translate mask_from_OS to mask_to_hw.
181 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0,
182 * because new mask[0~5] means 'SA', but our HW packet begins from LLC,
183 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match.
187 for (i = 0; i < mask_len - 1; i++) {
188 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6));
189 mask_hw[i] |= u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2;
191 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6));
193 /* Set bit 0-5 to zero */
194 mask_hw[0] &= (~GENMASK(5, 0));
196 memcpy(rtw_pattern->mask, mask_hw, RTW_MAX_PATTERN_MASK_SIZE);
198 /* To get the wake up pattern from the mask.
199 * We do not count first 12 bits which means
200 * DA[6] and SA[6] in the pattern to match HW design.
203 for (i = 12; i < len; i++) {
204 if ((mask[i / 8] >> (i % 8)) & 0x01) {
205 content[count] = pattern[i];
210 rtw_pattern->crc = rtw_calc_crc(content, count);
213 static void rtw_wow_pattern_clear_cam(struct rtw_dev *rtwdev)
217 rtw_write32(rtwdev, REG_WKFMCAM_CMD, BIT_WKFCAM_POLLING_V1 |
220 ret = check_hw_ready(rtwdev, REG_WKFMCAM_CMD, BIT_WKFCAM_POLLING_V1, 0);
222 rtw_err(rtwdev, "failed to clean pattern cam\n");
225 static void rtw_wow_pattern_write(struct rtw_dev *rtwdev)
227 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
228 struct rtw_wow_pattern *rtw_pattern = rtw_wow->patterns;
231 for (i = 0; i < rtw_wow->pattern_cnt; i++)
232 rtw_wow_pattern_write_cam_ent(rtwdev, i, rtw_pattern + i);
235 static void rtw_wow_pattern_clear(struct rtw_dev *rtwdev)
237 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
239 rtw_wow_pattern_clear_cam(rtwdev);
241 rtw_wow->pattern_cnt = 0;
242 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns));
245 static void rtw_wow_bb_stop(struct rtw_dev *rtwdev)
247 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
249 /* wait 100ms for firmware to finish TX */
252 if (!rtw_read32_mask(rtwdev, REG_BCNQ_INFO, BIT_MGQ_CPU_EMPTY))
253 rtw_warn(rtwdev, "Wrong status of MGQ_CPU empty!\n");
255 rtw_wow->txpause = rtw_read8(rtwdev, REG_TXPAUSE);
256 rtw_write8(rtwdev, REG_TXPAUSE, 0xff);
257 rtw_write8_clr(rtwdev, REG_SYS_FUNC_EN, BIT_FEN_BB_RSTB);
260 static void rtw_wow_bb_start(struct rtw_dev *rtwdev)
262 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
264 rtw_write8_set(rtwdev, REG_SYS_FUNC_EN, BIT_FEN_BB_RSTB);
265 rtw_write8(rtwdev, REG_TXPAUSE, rtw_wow->txpause);
268 static void rtw_wow_rx_dma_stop(struct rtw_dev *rtwdev)
270 /* wait 100ms for HW to finish rx dma */
273 rtw_write32_set(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE);
275 if (!check_hw_ready(rtwdev, REG_RXPKT_NUM, BIT_RXDMA_IDLE, 1))
276 rtw_err(rtwdev, "failed to stop rx dma\n");
279 static void rtw_wow_rx_dma_start(struct rtw_dev *rtwdev)
281 rtw_write32_clr(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE);
284 static int rtw_wow_check_fw_status(struct rtw_dev *rtwdev, bool wow_enable)
286 /* wait 100ms for wow firmware to finish work */
290 if (rtw_read8(rtwdev, REG_WOWLAN_WAKE_REASON))
293 if (rtw_read32_mask(rtwdev, REG_FE1IMR, BIT_FS_RXDONE) ||
294 rtw_read32_mask(rtwdev, REG_RXPKT_NUM, BIT_RW_RELEASE))
301 rtw_err(rtwdev, "failed to check wow status %s\n",
302 wow_enable ? "enabled" : "disabled");
306 static void rtw_wow_fw_security_type_iter(struct ieee80211_hw *hw,
307 struct ieee80211_vif *vif,
308 struct ieee80211_sta *sta,
309 struct ieee80211_key_conf *key,
312 struct rtw_fw_key_type_iter_data *iter_data = data;
313 struct rtw_dev *rtwdev = hw->priv;
316 if (vif != rtwdev->wow.wow_vif)
319 switch (key->cipher) {
320 case WLAN_CIPHER_SUITE_WEP40:
321 hw_key_type = RTW_CAM_WEP40;
323 case WLAN_CIPHER_SUITE_WEP104:
324 hw_key_type = RTW_CAM_WEP104;
326 case WLAN_CIPHER_SUITE_TKIP:
327 hw_key_type = RTW_CAM_TKIP;
328 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
330 case WLAN_CIPHER_SUITE_CCMP:
331 hw_key_type = RTW_CAM_AES;
332 key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
335 rtw_err(rtwdev, "Unsupported key type for wowlan mode: %#x\n",
342 iter_data->pairwise_key_type = hw_key_type;
344 iter_data->group_key_type = hw_key_type;
347 static void rtw_wow_fw_security_type(struct rtw_dev *rtwdev)
349 struct rtw_fw_key_type_iter_data data = {};
350 struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif;
352 data.rtwdev = rtwdev;
353 rtw_iterate_keys(rtwdev, wow_vif,
354 rtw_wow_fw_security_type_iter, &data);
355 rtw_fw_set_aoac_global_info_cmd(rtwdev, data.pairwise_key_type,
356 data.group_key_type);
359 static int rtw_wow_fw_start(struct rtw_dev *rtwdev)
361 if (rtw_wow_mgd_linked(rtwdev)) {
362 rtw_send_rsvd_page_h2c(rtwdev);
363 rtw_wow_pattern_write(rtwdev);
364 rtw_wow_fw_security_type(rtwdev);
365 rtw_fw_set_disconnect_decision_cmd(rtwdev, true);
366 rtw_fw_set_keep_alive_cmd(rtwdev, true);
367 } else if (rtw_wow_no_link(rtwdev)) {
368 rtw_fw_set_nlo_info(rtwdev, true);
369 rtw_fw_update_pkt_probe_req(rtwdev, NULL);
370 rtw_fw_channel_switch(rtwdev, true);
373 rtw_fw_set_wowlan_ctrl_cmd(rtwdev, true);
374 rtw_fw_set_remote_wake_ctrl_cmd(rtwdev, true);
376 return rtw_wow_check_fw_status(rtwdev, true);
379 static int rtw_wow_fw_stop(struct rtw_dev *rtwdev)
381 if (rtw_wow_mgd_linked(rtwdev)) {
382 rtw_fw_set_disconnect_decision_cmd(rtwdev, false);
383 rtw_fw_set_keep_alive_cmd(rtwdev, false);
384 rtw_wow_pattern_clear(rtwdev);
385 } else if (rtw_wow_no_link(rtwdev)) {
386 rtw_fw_channel_switch(rtwdev, false);
387 rtw_fw_set_nlo_info(rtwdev, false);
390 rtw_fw_set_wowlan_ctrl_cmd(rtwdev, false);
391 rtw_fw_set_remote_wake_ctrl_cmd(rtwdev, false);
393 return rtw_wow_check_fw_status(rtwdev, false);
396 static void rtw_wow_avoid_reset_mac(struct rtw_dev *rtwdev)
398 /* When resuming from wowlan mode, some hosts issue signal
399 * (PCIE: PREST, USB: SE0RST) to device, and lead to reset
400 * mac core. If it happens, the connection to AP will be lost.
401 * Setting REG_RSV_CTRL Register can avoid this process.
403 switch (rtw_hci_type(rtwdev)) {
404 case RTW_HCI_TYPE_PCIE:
405 case RTW_HCI_TYPE_USB:
406 rtw_write8(rtwdev, REG_RSV_CTRL, BIT_WLOCK_1C_B6);
407 rtw_write8(rtwdev, REG_RSV_CTRL,
408 BIT_WLOCK_1C_B6 | BIT_R_DIS_PRST);
411 rtw_warn(rtwdev, "Unsupported hci type to disable reset MAC\n");
416 static void rtw_wow_fw_media_status_iter(void *data, struct ieee80211_sta *sta)
418 struct rtw_sta_info *si = (struct rtw_sta_info *)sta->drv_priv;
419 struct rtw_fw_media_status_iter_data *iter_data = data;
420 struct rtw_dev *rtwdev = iter_data->rtwdev;
422 rtw_fw_media_status_report(rtwdev, si->mac_id, iter_data->connect);
425 static void rtw_wow_fw_media_status(struct rtw_dev *rtwdev, bool connect)
427 struct rtw_fw_media_status_iter_data data;
429 data.rtwdev = rtwdev;
430 data.connect = connect;
432 rtw_iterate_stas_atomic(rtwdev, rtw_wow_fw_media_status_iter, &data);
435 static void rtw_wow_config_pno_rsvd_page(struct rtw_dev *rtwdev,
436 struct rtw_vif *rtwvif)
438 rtw_add_rsvd_page_pno(rtwdev, rtwvif);
441 static void rtw_wow_config_linked_rsvd_page(struct rtw_dev *rtwdev,
442 struct rtw_vif *rtwvif)
444 rtw_add_rsvd_page_sta(rtwdev, rtwvif);
447 static void rtw_wow_config_rsvd_page(struct rtw_dev *rtwdev,
448 struct rtw_vif *rtwvif)
450 rtw_remove_rsvd_page(rtwdev, rtwvif);
452 if (rtw_wow_mgd_linked(rtwdev)) {
453 rtw_wow_config_linked_rsvd_page(rtwdev, rtwvif);
454 } else if (test_bit(RTW_FLAG_WOWLAN, rtwdev->flags) &&
455 rtw_wow_no_link(rtwdev)) {
456 rtw_wow_config_pno_rsvd_page(rtwdev, rtwvif);
460 static int rtw_wow_dl_fw_rsvd_page(struct rtw_dev *rtwdev)
462 struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif;
463 struct rtw_vif *rtwvif = (struct rtw_vif *)wow_vif->drv_priv;
465 rtw_wow_config_rsvd_page(rtwdev, rtwvif);
467 return rtw_fw_download_rsvd_page(rtwdev);
470 static int rtw_wow_swap_fw(struct rtw_dev *rtwdev, enum rtw_fw_type type)
472 struct rtw_fw_state *fw;
477 fw = &rtwdev->wow_fw;
485 rtw_warn(rtwdev, "unsupported firmware type to swap\n");
489 ret = rtw_download_firmware(rtwdev, fw);
493 rtw_fw_send_general_info(rtwdev);
494 rtw_fw_send_phydm_info(rtwdev);
495 rtw_wow_fw_media_status(rtwdev, true);
501 static void rtw_wow_check_pno(struct rtw_dev *rtwdev,
502 struct cfg80211_sched_scan_request *nd_config)
504 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
505 struct rtw_pno_request *pno_req = &rtw_wow->pno_req;
506 struct ieee80211_channel *channel;
509 if (!nd_config->n_match_sets || !nd_config->n_channels)
512 pno_req->match_set_cnt = nd_config->n_match_sets;
513 size = sizeof(*pno_req->match_sets) * pno_req->match_set_cnt;
514 pno_req->match_sets = kmemdup(nd_config->match_sets, size, GFP_KERNEL);
515 if (!pno_req->match_sets)
518 pno_req->channel_cnt = nd_config->n_channels;
519 size = sizeof(*nd_config->channels[0]) * nd_config->n_channels;
520 pno_req->channels = kmalloc(size, GFP_KERNEL);
521 if (!pno_req->channels)
524 for (i = 0 ; i < pno_req->channel_cnt; i++) {
525 channel = pno_req->channels + i;
526 memcpy(channel, nd_config->channels[i], sizeof(*channel));
529 pno_req->scan_plan = *nd_config->scan_plans;
530 pno_req->inited = true;
532 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: net-detect is enabled\n");
537 kfree(pno_req->match_sets);
540 rtw_dbg(rtwdev, RTW_DBG_WOW, "WOW: net-detect is disabled\n");
543 static int rtw_wow_leave_linked_ps(struct rtw_dev *rtwdev)
545 if (!test_bit(RTW_FLAG_WOWLAN, rtwdev->flags))
546 cancel_delayed_work_sync(&rtwdev->watch_dog_work);
548 rtw_leave_lps(rtwdev);
553 static int rtw_wow_leave_no_link_ps(struct rtw_dev *rtwdev)
555 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
558 if (test_bit(RTW_FLAG_WOWLAN, rtwdev->flags)) {
559 if (rtw_get_lps_deep_mode(rtwdev) != LPS_DEEP_MODE_NONE)
560 rtw_leave_lps_deep(rtwdev);
562 if (test_bit(RTW_FLAG_INACTIVE_PS, rtwdev->flags)) {
563 rtw_wow->ips_enabled = true;
564 ret = rtw_leave_ips(rtwdev);
573 static int rtw_wow_leave_ps(struct rtw_dev *rtwdev)
577 if (rtw_wow_mgd_linked(rtwdev))
578 ret = rtw_wow_leave_linked_ps(rtwdev);
579 else if (rtw_wow_no_link(rtwdev))
580 ret = rtw_wow_leave_no_link_ps(rtwdev);
585 static int rtw_wow_restore_ps(struct rtw_dev *rtwdev)
589 if (rtw_wow_no_link(rtwdev) && rtwdev->wow.ips_enabled)
590 ret = rtw_enter_ips(rtwdev);
595 static int rtw_wow_enter_linked_ps(struct rtw_dev *rtwdev)
597 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
598 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif;
599 struct rtw_vif *rtwvif = (struct rtw_vif *)wow_vif->drv_priv;
601 rtw_enter_lps(rtwdev, rtwvif->port);
606 static int rtw_wow_enter_no_link_ps(struct rtw_dev *rtwdev)
608 /* firmware enters deep ps by itself if supported */
609 set_bit(RTW_FLAG_LEISURE_PS_DEEP, rtwdev->flags);
614 static int rtw_wow_enter_ps(struct rtw_dev *rtwdev)
618 if (rtw_wow_mgd_linked(rtwdev))
619 ret = rtw_wow_enter_linked_ps(rtwdev);
620 else if (rtw_wow_no_link(rtwdev) &&
621 rtw_get_lps_deep_mode(rtwdev) != LPS_DEEP_MODE_NONE)
622 ret = rtw_wow_enter_no_link_ps(rtwdev);
627 static void rtw_wow_stop_trx(struct rtw_dev *rtwdev)
629 rtw_wow_bb_stop(rtwdev);
630 rtw_wow_rx_dma_stop(rtwdev);
633 static int rtw_wow_start(struct rtw_dev *rtwdev)
637 ret = rtw_wow_fw_start(rtwdev);
641 rtw_hci_stop(rtwdev);
642 rtw_wow_bb_start(rtwdev);
643 rtw_wow_avoid_reset_mac(rtwdev);
649 static int rtw_wow_enable(struct rtw_dev *rtwdev)
653 rtw_wow_stop_trx(rtwdev);
655 ret = rtw_wow_swap_fw(rtwdev, RTW_WOWLAN_FW);
657 rtw_err(rtwdev, "failed to swap wow fw\n");
661 set_bit(RTW_FLAG_WOWLAN, rtwdev->flags);
663 ret = rtw_wow_dl_fw_rsvd_page(rtwdev);
665 rtw_err(rtwdev, "failed to download wowlan rsvd page\n");
669 ret = rtw_wow_start(rtwdev);
671 rtw_err(rtwdev, "failed to start wow\n");
678 clear_bit(RTW_FLAG_WOWLAN, rtwdev->flags);
682 static int rtw_wow_stop(struct rtw_dev *rtwdev)
686 /* some HCI related registers will be reset after resume,
687 * need to set them again.
689 ret = rtw_hci_setup(rtwdev);
691 rtw_err(rtwdev, "failed to setup hci\n");
695 ret = rtw_hci_start(rtwdev);
697 rtw_err(rtwdev, "failed to start hci\n");
701 ret = rtw_wow_fw_stop(rtwdev);
703 rtw_err(rtwdev, "failed to stop wowlan fw\n");
705 rtw_wow_bb_stop(rtwdev);
710 static void rtw_wow_resume_trx(struct rtw_dev *rtwdev)
712 rtw_wow_rx_dma_start(rtwdev);
713 rtw_wow_bb_start(rtwdev);
714 ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work,
715 RTW_WATCH_DOG_DELAY_TIME);
718 static int rtw_wow_disable(struct rtw_dev *rtwdev)
722 clear_bit(RTW_FLAG_WOWLAN, rtwdev->flags);
724 ret = rtw_wow_stop(rtwdev);
726 rtw_err(rtwdev, "failed to stop wow\n");
730 ret = rtw_wow_swap_fw(rtwdev, RTW_NORMAL_FW);
732 rtw_err(rtwdev, "failed to swap normal fw\n");
736 ret = rtw_wow_dl_fw_rsvd_page(rtwdev);
738 rtw_err(rtwdev, "failed to download normal rsvd page\n");
741 rtw_wow_resume_trx(rtwdev);
745 static void rtw_wow_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
747 struct rtw_dev *rtwdev = data;
748 struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
749 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
751 /* Current wowlan function support setting of only one STATION vif.
752 * So when one suitable vif is found, stop the iteration.
754 if (rtw_wow->wow_vif || vif->type != NL80211_IFTYPE_STATION)
757 switch (rtwvif->net_type) {
758 case RTW_NET_MGD_LINKED:
759 rtw_wow->wow_vif = vif;
761 case RTW_NET_NO_LINK:
762 if (rtw_wow->pno_req.inited)
763 rtwdev->wow.wow_vif = vif;
770 static int rtw_wow_set_wakeups(struct rtw_dev *rtwdev,
771 struct cfg80211_wowlan *wowlan)
773 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
774 struct rtw_wow_pattern *rtw_patterns = rtw_wow->patterns;
775 struct rtw_vif *rtwvif;
778 if (wowlan->disconnect)
779 set_bit(RTW_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags);
780 if (wowlan->magic_pkt)
781 set_bit(RTW_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags);
782 if (wowlan->gtk_rekey_failure)
783 set_bit(RTW_WOW_FLAG_EN_REKEY_PKT, rtw_wow->flags);
785 if (wowlan->nd_config)
786 rtw_wow_check_pno(rtwdev, wowlan->nd_config);
788 rtw_iterate_vifs_atomic(rtwdev, rtw_wow_vif_iter, rtwdev);
789 if (!rtw_wow->wow_vif)
792 rtwvif = (struct rtw_vif *)rtw_wow->wow_vif->drv_priv;
793 if (wowlan->n_patterns && wowlan->patterns) {
794 rtw_wow->pattern_cnt = wowlan->n_patterns;
795 for (i = 0; i < wowlan->n_patterns; i++)
796 rtw_wow_pattern_generate(rtwdev, rtwvif,
797 wowlan->patterns + i,
804 static void rtw_wow_clear_wakeups(struct rtw_dev *rtwdev)
806 struct rtw_wow_param *rtw_wow = &rtwdev->wow;
807 struct rtw_pno_request *pno_req = &rtw_wow->pno_req;
809 if (pno_req->inited) {
810 kfree(pno_req->channels);
811 kfree(pno_req->match_sets);
814 memset(rtw_wow, 0, sizeof(rtwdev->wow));
817 int rtw_wow_suspend(struct rtw_dev *rtwdev, struct cfg80211_wowlan *wowlan)
821 ret = rtw_wow_set_wakeups(rtwdev, wowlan);
823 rtw_err(rtwdev, "failed to set wakeup event\n");
827 ret = rtw_wow_leave_ps(rtwdev);
829 rtw_err(rtwdev, "failed to leave ps from normal mode\n");
833 ret = rtw_wow_enable(rtwdev);
835 rtw_err(rtwdev, "failed to enable wow\n");
836 rtw_wow_restore_ps(rtwdev);
840 ret = rtw_wow_enter_ps(rtwdev);
842 rtw_err(rtwdev, "failed to enter ps for wow\n");
848 int rtw_wow_resume(struct rtw_dev *rtwdev)
852 /* If wowlan mode is not enabled, do nothing */
853 if (!test_bit(RTW_FLAG_WOWLAN, rtwdev->flags)) {
854 rtw_err(rtwdev, "wow is not enabled\n");
859 ret = rtw_wow_leave_ps(rtwdev);
861 rtw_err(rtwdev, "failed to leave ps from wowlan mode\n");
865 rtw_wow_show_wakeup_reason(rtwdev);
867 ret = rtw_wow_disable(rtwdev);
869 rtw_err(rtwdev, "failed to disable wow\n");
873 ret = rtw_wow_restore_ps(rtwdev);
875 rtw_err(rtwdev, "failed to restore ps to normal mode\n");
878 rtw_wow_clear_wakeups(rtwdev);