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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);
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 int ret;
44
45 if (enable_wow) {
46 ret = rtw89_mac_resize_ple_rx_quota(rtwdev, true);
47 if (ret) {
48 rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret);
49 return ret;
50 }
51 rtw89_write32_set(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP);
52 rtw89_write32_clr(rtwdev, R_AX_RX_FLTR_OPT, B_AX_SNIFFER_MODE);
53 rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false);
54 rtw89_write32(rtwdev, R_AX_ACTION_FWD0, 0);
55 rtw89_write32(rtwdev, R_AX_ACTION_FWD1, 0);
56 rtw89_write32(rtwdev, R_AX_TF_FWD, 0);
57 rtw89_write32(rtwdev, R_AX_HW_RPT_FWD, 0);
58 } else {
59 ret = rtw89_mac_resize_ple_rx_quota(rtwdev, false);
60 if (ret) {
61 rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret);
62 return ret;
63 }
64 rtw89_write32_clr(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP);
65 rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true);
66 rtw89_write32(rtwdev, R_AX_ACTION_FWD0, TRXCFG_MPDU_PROC_ACT_FRWD);
67 rtw89_write32(rtwdev, R_AX_TF_FWD, TRXCFG_MPDU_PROC_TF_FRWD);
68 }
69
70 return 0;
71}
72
73static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable)
74{
75 enum rtw89_mac_fwd_target fwd_target = enable ?
76 RTW89_FWD_DONT_CARE :
77 RTW89_FWD_TO_HOST;
78
79 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0);
80 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0);
81 rtw89_mac_typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0);
82}
83
84static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev)
85{
86 enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
87 struct cfg80211_wowlan_nd_info nd_info;
88 struct cfg80211_wowlan_wakeup wakeup = {
89 .pattern_idx = -1,
90 };
91 u32 wow_reason_reg;
92 u8 reason;
93
94 if (chip_id == RTL8852A || chip_id == RTL8852B)
95 wow_reason_reg = R_AX_C2HREG_DATA3 + 3;
96 else
97 wow_reason_reg = R_AX_C2HREG_DATA3_V1 + 3;
98
99 reason = rtw89_read8(rtwdev, wow_reason_reg);
100
101 switch (reason) {
102 case RTW89_WOW_RSN_RX_DEAUTH:
103 wakeup.disconnect = true;
104 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n");
105 break;
106 case RTW89_WOW_RSN_DISCONNECT:
107 wakeup.disconnect = true;
108 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n");
109 break;
110 case RTW89_WOW_RSN_RX_MAGIC_PKT:
111 wakeup.magic_pkt = true;
112 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n");
113 break;
114 case RTW89_WOW_RSN_RX_GTK_REKEY:
115 wakeup.gtk_rekey_failure = true;
116 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n");
117 break;
118 case RTW89_WOW_RSN_RX_PATTERN_MATCH:
119 /* Current firmware and driver don't report pattern index
120 * Use pattern_idx to 0 defaultly.
121 */
122 wakeup.pattern_idx = 0;
123 rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n");
124 break;
125 case RTW89_WOW_RSN_RX_NLO:
126 /* Current firmware and driver don't report ssid index.
127 * Use 0 for n_matches based on its comment.
128 */
129 nd_info.n_matches = 0;
130 wakeup.net_detect = &nd_info;
131 rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n");
132 break;
133 default:
134 rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason);
135 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, NULL,
136 GFP_KERNEL);
137 return;
138 }
139
140 ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, &wakeup,
141 GFP_KERNEL);
142}
143
144static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
145{
146 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
147 struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif);
148
149 /* Current wowlan function support setting of only one STATION vif.
150 * So when one suitable vif is found, stop the iteration.
151 */
152 if (rtw_wow->wow_vif || vif->type != NL80211_IFTYPE_STATION)
153 return;
154
155 switch (rtwvif->net_type) {
156 case RTW89_NET_TYPE_INFRA:
157 rtw_wow->wow_vif = vif;
158 break;
159 case RTW89_NET_TYPE_NO_LINK:
160 default:
161 break;
162 }
163}
164
165static u16 __rtw89_cal_crc16(u8 data, u16 crc)
166{
167 u8 shift_in, data_bit;
168 u8 crc_bit4, crc_bit11, crc_bit15;
169 u16 crc_result;
170 int index;
171
172 for (index = 0; index < 8; index++) {
173 crc_bit15 = crc & BIT(15) ? 1 : 0;
174 data_bit = data & BIT(index) ? 1 : 0;
175 shift_in = crc_bit15 ^ data_bit;
176
177 crc_result = crc << 1;
178
179 if (shift_in == 0)
180 crc_result &= ~BIT(0);
181 else
182 crc_result |= BIT(0);
183
184 crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in;
185
186 if (crc_bit11 == 0)
187 crc_result &= ~BIT(12);
188 else
189 crc_result |= BIT(12);
190
191 crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in;
192
193 if (crc_bit4 == 0)
194 crc_result &= ~BIT(5);
195 else
196 crc_result |= BIT(5);
197
198 crc = crc_result;
199 }
200 return crc;
201}
202
203static u16 rtw89_calc_crc(u8 *pdata, int length)
204{
205 u16 crc = 0xffff;
206 int i;
207
208 for (i = 0; i < length; i++)
209 crc = __rtw89_cal_crc16(pdata[i], crc);
210
211 /* get 1' complement */
212 return ~crc;
213}
214
215static int rtw89_wow_pattern_get_type(struct rtw89_vif *rtwvif,
216 struct rtw89_wow_cam_info *rtw_pattern,
217 const u8 *pattern, u8 da_mask)
218{
219 u8 da[ETH_ALEN];
220
221 ether_addr_copy_mask(da, pattern, da_mask);
222
223 /* Each pattern is divided into different kinds by DA address
224 * a. DA is broadcast address: set bc = 0;
225 * b. DA is multicast address: set mc = 0
226 * c. DA is unicast address same as dev's mac address: set uc = 0
227 * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0
228 * e. Others is invalid type.
229 */
230
231 if (is_broadcast_ether_addr(da))
232 rtw_pattern->bc = true;
233 else if (is_multicast_ether_addr(da))
234 rtw_pattern->mc = true;
235 else if (ether_addr_equal(da, rtwvif->mac_addr) &&
236 da_mask == GENMASK(5, 0))
237 rtw_pattern->uc = true;
238 else if (!da_mask) /*da_mask == 0 mean wildcard*/
239 return 0;
240 else
241 return -EPERM;
242
243 return 0;
244}
245
246static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev,
247 struct rtw89_vif *rtwvif,
248 const struct cfg80211_pkt_pattern *pkt_pattern,
249 struct rtw89_wow_cam_info *rtw_pattern)
250{
251 u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0};
252 u8 content[RTW89_MAX_PATTERN_SIZE] = {0};
253 const u8 *mask;
254 const u8 *pattern;
255 u8 mask_len;
256 u16 count;
257 u32 len;
258 int i, ret;
259
260 pattern = pkt_pattern->pattern;
261 len = pkt_pattern->pattern_len;
262 mask = pkt_pattern->mask;
263 mask_len = DIV_ROUND_UP(len, 8);
264 memset(rtw_pattern, 0, sizeof(*rtw_pattern));
265
266 ret = rtw89_wow_pattern_get_type(rtwvif, rtw_pattern, pattern,
267 mask[0] & GENMASK(5, 0));
268 if (ret)
269 return ret;
270
271 /* translate mask from os to mask for hw
272 * pattern from OS uses 'ethenet frame', like this:
273 * | 6 | 6 | 2 | 20 | Variable | 4 |
274 * |--------+--------+------+-----------+------------+-----|
275 * | 802.3 Mac Header | IP Header | TCP Packet | FCS |
276 * | DA | SA | Type |
277 *
278 * BUT, packet catched by our HW is in '802.11 frame', begin from LLC
279 * | 24 or 30 | 6 | 2 | 20 | Variable | 4 |
280 * |-------------------+--------+------+-----------+------------+-----|
281 * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS |
282 * | Others | Tpye |
283 *
284 * Therefore, we need translate mask_from_OS to mask_to_hw.
285 * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0,
286 * because new mask[0~5] means 'SA', but our HW packet begins from LLC,
287 * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match.
288 */
289
290 /* Shift 6 bits */
291 for (i = 0; i < mask_len - 1; i++) {
292 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) |
293 u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2;
294 }
295 mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6));
296
297 /* Set bit 0-5 to zero */
298 mask_hw[0] &= ~GENMASK(5, 0);
299
300 memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask));
301
302 /* To get the wake up pattern from the mask.
303 * We do not count first 12 bits which means
304 * DA[6] and SA[6] in the pattern to match HW design.
305 */
306 count = 0;
307 for (i = 12; i < len; i++) {
308 if ((mask[i / 8] >> (i % 8)) & 0x01) {
309 content[count] = pattern[i];
310 count++;
311 }
312 }
313
314 rtw_pattern->crc = rtw89_calc_crc(content, count);
315
316 return 0;
317}
318
319static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev,
320 struct rtw89_vif *rtwvif,
321 struct cfg80211_wowlan *wowlan)
322{
323 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
324 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns;
325 int i;
326 int ret;
327
328 if (!wowlan->n_patterns || !wowlan->patterns)
329 return 0;
330
331 for (i = 0; i < wowlan->n_patterns; i++) {
332 rtw_pattern = &rtw_wow->patterns[i];
333 ret = rtw89_wow_pattern_generate(rtwdev, rtwvif,
334 &wowlan->patterns[i],
335 rtw_pattern);
336 if (ret) {
337 rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i);
338 rtw_wow->pattern_cnt = 0;
339 return ret;
340 }
341
342 rtw_pattern->r_w = true;
343 rtw_pattern->idx = i;
344 rtw_pattern->negative_pattern_match = false;
345 rtw_pattern->skip_mac_hdr = true;
346 rtw_pattern->valid = true;
347 }
348 rtw_wow->pattern_cnt = wowlan->n_patterns;
349
350 return 0;
351}
352
353static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev)
354{
355 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
356 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns;
357 int i = 0;
358
359 for (i = 0; i < rtw_wow->pattern_cnt; i++) {
360 rtw_pattern = &rtw_wow->patterns[i];
361 rtw_pattern->valid = false;
362 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern);
363 }
364}
365
366static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev)
367{
368 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
369 struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns;
370 int i;
371
372 for (i = 0; i < rtw_wow->pattern_cnt; i++)
373 rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i);
374}
375
376static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev)
377{
378 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
379
380 rtw89_wow_pattern_clear_cam(rtwdev);
381
382 rtw_wow->pattern_cnt = 0;
383 memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns));
384}
385
386static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev)
387{
388 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
389
390 rtw_wow->wow_vif = NULL;
391 rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM);
392 rtw_wow->pattern_cnt = 0;
393}
394
395static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev,
396 struct cfg80211_wowlan *wowlan)
397{
398 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
399 struct rtw89_vif *rtwvif;
400
401 if (wowlan->disconnect)
402 set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags);
403 if (wowlan->magic_pkt)
404 set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags);
405
406 rtw89_for_each_rtwvif(rtwdev, rtwvif)
407 rtw89_wow_vif_iter(rtwdev, rtwvif);
408
409 if (!rtw_wow->wow_vif)
410 return -EPERM;
411
412 rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv;
413 return rtw89_wow_parse_patterns(rtwdev, rtwvif, wowlan);
414}
415
416static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow)
417{
418 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
419 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif;
420 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv;
421 struct ieee80211_sta *wow_sta;
422 struct rtw89_sta *rtwsta = NULL;
423 bool is_conn = true;
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 else
430 is_conn = false;
431
432 if (wow) {
433 if (rtw_wow->pattern_cnt)
434 rtwvif->wowlan_pattern = true;
435 if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags))
436 rtwvif->wowlan_magic = true;
437 } else {
438 rtwvif->wowlan_pattern = false;
439 rtwvif->wowlan_magic = false;
440 }
441
442 ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif, wow);
443 if (ret) {
444 rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n");
445 return ret;
446 }
447
448 if (wow) {
449 ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta);
450 if (ret) {
451 rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n",
452 ret);
453 return ret;
454 }
455 }
456
457 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn);
458 if (ret) {
459 rtw89_warn(rtwdev, "failed to send h2c join info\n");
460 return ret;
461 }
462
463 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL);
464 if (ret) {
465 rtw89_warn(rtwdev, "failed to send h2c cam\n");
466 return ret;
467 }
468
469 ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif, wow);
470 if (ret) {
471 rtw89_err(rtwdev, "failed to fw wow global\n");
472 return ret;
473 }
474
475 return 0;
476}
477
478static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable)
479{
480 u8 polling;
481 int ret;
482
483 ret = read_poll_timeout_atomic(rtw89_read8_mask, polling,
484 wow_enable == !!polling,
485 50, 50000, false, rtwdev,
486 R_AX_WOW_CTRL, B_AX_WOW_WOWEN);
487 if (ret)
488 rtw89_err(rtwdev, "failed to check wow status %s\n",
489 wow_enable ? "enabled" : "disabled");
490 return ret;
491}
492
493static void rtw89_wow_release_pkt_list(struct rtw89_dev *rtwdev)
494{
495 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
496 struct list_head *pkt_list = &rtw_wow->pkt_list;
497 struct rtw89_pktofld_info *info, *tmp;
498
499 list_for_each_entry_safe(info, tmp, pkt_list, list) {
500 rtw89_fw_h2c_del_pkt_offload(rtwdev, info->id);
501 rtw89_core_release_bit_map(rtwdev->pkt_offload,
502 info->id);
503 list_del(&info->list);
504 kfree(info);
505 }
506}
507
508static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow)
509{
510 enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL;
511 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
512 struct ieee80211_vif *wow_vif = rtw_wow->wow_vif;
513 struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv;
514 struct ieee80211_sta *wow_sta;
515 struct rtw89_sta *rtwsta = NULL;
516 bool is_conn = true;
517 int ret;
518
519 rtw89_hci_disable_intr(rtwdev);
520
521 wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid);
522 if (wow_sta)
523 rtwsta = (struct rtw89_sta *)wow_sta->drv_priv;
524 else
525 is_conn = false;
526
527 ret = rtw89_fw_download(rtwdev, fw_type);
528 if (ret) {
529 rtw89_warn(rtwdev, "download fw failed\n");
530 return ret;
531 }
532
533 rtw89_phy_init_rf_reg(rtwdev, true);
534
535 ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta,
536 RTW89_ROLE_FW_RESTORE);
537 if (ret) {
538 rtw89_warn(rtwdev, "failed to send h2c role maintain\n");
539 return ret;
540 }
541
542 ret = rtw89_fw_h2c_assoc_cmac_tbl(rtwdev, wow_vif, wow_sta);
543 if (ret) {
544 rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n");
545 return ret;
546 }
547
548 if (!is_conn)
549 rtw89_cam_reset_keys(rtwdev);
550
551 ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn);
552 if (ret) {
553 rtw89_warn(rtwdev, "failed to send h2c join info\n");
554 return ret;
555 }
556
557 ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL);
558 if (ret) {
559 rtw89_warn(rtwdev, "failed to send h2c cam\n");
560 return ret;
561 }
562
563 if (is_conn) {
564 rtw89_phy_ra_assoc(rtwdev, wow_sta);
565 rtw89_phy_set_bss_color(rtwdev, wow_vif);
566 rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, wow_vif);
567 }
568
569 rtw89_mac_hw_mgnt_sec(rtwdev, wow);
570 rtw89_hci_enable_intr(rtwdev);
571
572 return 0;
573}
574
575static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev)
576{
577 int ret;
578
579 rtw89_hci_ctrl_txdma_ch(rtwdev, false);
580 rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true);
581
582 rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0);
583
584 ret = rtw89_hci_poll_txdma_ch(rtwdev);
585 if (ret) {
586 rtw89_err(rtwdev, "txdma ch busy\n");
587 return ret;
588 }
589 rtw89_wow_set_rx_filter(rtwdev, true);
590
591 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false);
592 if (ret) {
593 rtw89_err(rtwdev, "cfg ppdu status\n");
594 return ret;
595 }
596
597 return 0;
598}
599
600static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev)
601{
602 int ret;
603
604 rtw89_hci_disable_intr(rtwdev);
605 rtw89_hci_ctrl_trxhci(rtwdev, false);
606
607 ret = rtw89_hci_poll_txdma_ch(rtwdev);
608 if (ret) {
609 rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n");
610 return ret;
611 }
612
613 ret = rtw89_wow_config_mac(rtwdev, true);
614 if (ret) {
615 rtw89_err(rtwdev, "failed to config mac\n");
616 return ret;
617 }
618
619 rtw89_wow_set_rx_filter(rtwdev, false);
620 rtw89_hci_reset(rtwdev);
621
622 return 0;
623}
624
625static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev)
626{
627 int ret;
628
629 rtw89_hci_clr_idx_all(rtwdev);
630
631 ret = rtw89_hci_rst_bdram(rtwdev);
632 if (ret) {
633 rtw89_warn(rtwdev, "reset bdram busy\n");
634 return ret;
635 }
636
637 rtw89_hci_ctrl_trxhci(rtwdev, true);
638 rtw89_hci_ctrl_txdma_ch(rtwdev, true);
639
640 ret = rtw89_wow_config_mac(rtwdev, false);
641 if (ret) {
642 rtw89_err(rtwdev, "failed to config mac\n");
643 return ret;
644 }
645 rtw89_hci_enable_intr(rtwdev);
646
647 return 0;
648}
649
650static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev)
651{
652 int ret;
653
654 ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true);
655 if (ret)
656 rtw89_err(rtwdev, "cfg ppdu status\n");
657
658 return ret;
659}
660
661static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev)
662{
663 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
664 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv;
665 int ret;
666
667 rtw89_wow_pattern_write(rtwdev);
668
669 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, true);
670 if (ret) {
671 rtw89_err(rtwdev, "wow: failed to enable keep alive\n");
672 return ret;
673 }
674
675 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, true);
676 if (ret) {
677 rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n");
678 goto out;
679 }
680
681 ret = rtw89_wow_cfg_wake(rtwdev, true);
682 if (ret) {
683 rtw89_err(rtwdev, "wow: failed to config wake\n");
684 goto out;
685 }
686
687 ret = rtw89_wow_check_fw_status(rtwdev, true);
688 if (ret) {
689 rtw89_err(rtwdev, "wow: failed to check enable fw ready\n");
690 goto out;
691 }
692
693out:
694 return ret;
695}
696
697static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev)
698{
699 struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
700 struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv;
701 int ret;
702
703 rtw89_wow_pattern_clear(rtwdev);
704
705 ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, false);
706 if (ret) {
707 rtw89_err(rtwdev, "wow: failed to disable keep alive\n");
708 goto out;
709 }
710
711 rtw89_wow_release_pkt_list(rtwdev);
712
713 ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, false);
714 if (ret) {
715 rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n");
716 goto out;
717 }
718
719 ret = rtw89_wow_cfg_wake(rtwdev, false);
720 if (ret) {
721 rtw89_err(rtwdev, "wow: failed to disable config wake\n");
722 goto out;
723 }
724
725 ret = rtw89_wow_check_fw_status(rtwdev, false);
726 if (ret) {
727 rtw89_err(rtwdev, "wow: failed to check disable fw ready\n");
728 goto out;
729 }
730
731out:
732 return ret;
733}
734
735static int rtw89_wow_enable(struct rtw89_dev *rtwdev)
736{
737 int ret;
738
739 set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags);
740
741 ret = rtw89_wow_enable_trx_pre(rtwdev);
742 if (ret) {
743 rtw89_err(rtwdev, "wow: failed to enable trx_pre\n");
744 goto out;
745 }
746
747 ret = rtw89_wow_swap_fw(rtwdev, true);
748 if (ret) {
749 rtw89_err(rtwdev, "wow: failed to swap to wow fw\n");
750 goto out;
751 }
752
753 ret = rtw89_wow_fw_start(rtwdev);
754 if (ret) {
755 rtw89_err(rtwdev, "wow: failed to let wow fw start\n");
756 goto out;
757 }
758
759 rtw89_wow_enter_lps(rtwdev);
760
761 ret = rtw89_wow_enable_trx_post(rtwdev);
762 if (ret) {
763 rtw89_err(rtwdev, "wow: failed to enable trx_post\n");
764 goto out;
765 }
766
767 return 0;
768
769out:
770 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags);
771 return ret;
772}
773
774static int rtw89_wow_disable(struct rtw89_dev *rtwdev)
775{
776 int ret;
777
778 ret = rtw89_wow_disable_trx_pre(rtwdev);
779 if (ret) {
780 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n");
781 goto out;
782 }
783
784 rtw89_wow_leave_lps(rtwdev);
785
786 ret = rtw89_wow_fw_stop(rtwdev);
787 if (ret) {
788 rtw89_err(rtwdev, "wow: failed to swap to normal fw\n");
789 goto out;
790 }
791
792 ret = rtw89_wow_swap_fw(rtwdev, false);
793 if (ret) {
794 rtw89_err(rtwdev, "wow: failed to disable trx_post\n");
795 goto out;
796 }
797
798 ret = rtw89_wow_disable_trx_post(rtwdev);
799 if (ret) {
800 rtw89_err(rtwdev, "wow: failed to disable trx_pre\n");
801 goto out;
802 }
803
804out:
805 clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags);
806 return ret;
807}
808
809int rtw89_wow_resume(struct rtw89_dev *rtwdev)
810{
811 int ret;
812
813 if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) {
814 rtw89_err(rtwdev, "wow is not enabled\n");
815 ret = -EPERM;
816 goto out;
817 }
818
819 if (!rtw89_mac_get_power_state(rtwdev)) {
820 rtw89_err(rtwdev, "chip is no power when resume\n");
821 ret = -EPERM;
822 goto out;
823 }
824
825 rtw89_wow_leave_deep_ps(rtwdev);
826
827 rtw89_wow_show_wakeup_reason(rtwdev);
828
829 ret = rtw89_wow_disable(rtwdev);
830 if (ret)
831 rtw89_err(rtwdev, "failed to disable wow\n");
832
833out:
834 rtw89_wow_clear_wakeups(rtwdev);
835 return ret;
836}
837
838int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan)
839{
840 int ret;
841
842 ret = rtw89_wow_set_wakeups(rtwdev, wowlan);
843 if (ret) {
844 rtw89_err(rtwdev, "failed to set wakeup event\n");
845 return ret;
846 }
847
848 rtw89_wow_leave_lps(rtwdev);
849
850 ret = rtw89_wow_enable(rtwdev);
851 if (ret) {
852 rtw89_err(rtwdev, "failed to enable wow\n");
853 return ret;
854 }
855
856 rtw89_wow_enter_deep_ps(rtwdev);
857
858 return 0;
859}