aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/realtek/rtw89/ps.c
blob: 7eaa01e41ef24ab0a4215164d89f592f6caa8172 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/* Copyright(c) 2019-2020  Realtek Corporation
 */

#include "coex.h"
#include "core.h"
#include "debug.h"
#include "fw.h"
#include "mac.h"
#include "ps.h"
#include "reg.h"
#include "util.h"

static int rtw89_fw_leave_lps_check(struct rtw89_dev *rtwdev, u8 macid)
{
	u32 pwr_en_bit = 0xE;
	u32 chk_msk = pwr_en_bit << (4 * macid);
	u32 polling;
	int ret;

	ret = read_poll_timeout_atomic(rtw89_read32_mask, polling, !polling,
				       1000, 50000, false, rtwdev,
				       R_AX_PPWRBIT_SETTING, chk_msk);
	if (ret) {
		rtw89_info(rtwdev, "rtw89: failed to leave lps state\n");
		return -EBUSY;
	}

	return 0;
}

static void __rtw89_enter_ps_mode(struct rtw89_dev *rtwdev)
{
	if (!rtwdev->ps_mode)
		return;

	if (test_and_set_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags))
		return;

	rtw89_mac_power_mode_change(rtwdev, true);
}

void __rtw89_leave_ps_mode(struct rtw89_dev *rtwdev)
{
	if (!rtwdev->ps_mode)
		return;

	if (test_and_clear_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags))
		rtw89_mac_power_mode_change(rtwdev, false);
}

static void __rtw89_enter_lps(struct rtw89_dev *rtwdev, u8 mac_id)
{
	struct rtw89_lps_parm lps_param = {
		.macid = mac_id,
		.psmode = RTW89_MAC_AX_PS_MODE_LEGACY,
		.lastrpwm = RTW89_LAST_RPWM_PS,
	};

	rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_FW_CTRL);
	rtw89_fw_h2c_lps_parm(rtwdev, &lps_param);
}

static void __rtw89_leave_lps(struct rtw89_dev *rtwdev, u8 mac_id)
{
	struct rtw89_lps_parm lps_param = {
		.macid = mac_id,
		.psmode = RTW89_MAC_AX_PS_MODE_ACTIVE,
		.lastrpwm = RTW89_LAST_RPWM_ACTIVE,
	};

	rtw89_fw_h2c_lps_parm(rtwdev, &lps_param);
	rtw89_fw_leave_lps_check(rtwdev, 0);
	rtw89_btc_ntfy_radio_state(rtwdev, BTC_RFCTRL_WL_ON);
}

void rtw89_leave_ps_mode(struct rtw89_dev *rtwdev)
{
	lockdep_assert_held(&rtwdev->mutex);

	__rtw89_leave_ps_mode(rtwdev);
}

void rtw89_enter_lps(struct rtw89_dev *rtwdev, u8 mac_id)
{
	lockdep_assert_held(&rtwdev->mutex);

	if (test_and_set_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags))
		return;

	__rtw89_enter_lps(rtwdev, mac_id);
	__rtw89_enter_ps_mode(rtwdev);
}

static void rtw89_leave_lps_vif(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
{
	if (rtwvif->wifi_role != RTW89_WIFI_ROLE_STATION)
		return;

	__rtw89_leave_ps_mode(rtwdev);
	__rtw89_leave_lps(rtwdev, rtwvif->mac_id);
}

void rtw89_leave_lps(struct rtw89_dev *rtwdev)
{
	struct rtw89_vif *rtwvif;

	lockdep_assert_held(&rtwdev->mutex);

	if (!test_and_clear_bit(RTW89_FLAG_LEISURE_PS, rtwdev->flags))
		return;

	rtw89_for_each_rtwvif(rtwdev, rtwvif)
		rtw89_leave_lps_vif(rtwdev, rtwvif);
}

void rtw89_enter_ips(struct rtw89_dev *rtwdev)
{
	struct rtw89_vif *rtwvif;

	set_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags);

	rtw89_for_each_rtwvif(rtwdev, rtwvif)
		rtw89_mac_vif_deinit(rtwdev, rtwvif);

	rtw89_core_stop(rtwdev);
}

void rtw89_leave_ips(struct rtw89_dev *rtwdev)
{
	struct rtw89_vif *rtwvif;
	int ret;

	ret = rtw89_core_start(rtwdev);
	if (ret)
		rtw89_err(rtwdev, "failed to leave idle state\n");

	rtw89_set_channel(rtwdev);

	rtw89_for_each_rtwvif(rtwdev, rtwvif)
		rtw89_mac_vif_init(rtwdev, rtwvif);

	clear_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags);
}

void rtw89_set_coex_ctrl_lps(struct rtw89_dev *rtwdev, bool btc_ctrl)
{
	if (btc_ctrl)
		rtw89_leave_lps(rtwdev);
}