1 /*
2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "battery_backlight.h"
17
18 #include "charger_log.h"
19 #include "hdf_base.h"
20
21 namespace OHOS {
22 namespace PowerMgr {
23 namespace {
24 constexpr uint32_t BACKLIGHT_ON = 128;
25 }
26
BatteryBacklight()27 BatteryBacklight::BatteryBacklight()
28 {
29 if (composer_ == nullptr) {
30 composer_.reset(IDisplayComposerInterface::Get());
31 if (composer_ == nullptr) {
32 return;
33 }
34 }
35 }
36
~BatteryBacklight()37 BatteryBacklight::~BatteryBacklight()
38 {
39 }
40
TurnOnScreen()41 void BatteryBacklight::TurnOnScreen()
42 {
43 if (screenState_ != SCREEN_ON) {
44 BATTERY_HILOGD(FEATURE_CHARGING, "turn on screen");
45 uint32_t devId = 0;
46 composer_->SetDisplayPowerStatus(devId, POWER_STATUS_ON);
47 composer_->SetDisplayBacklight(devId, BACKLIGHT_ON);
48 screenState_ = SCREEN_ON;
49 }
50 }
51
TurnOffScreen()52 void BatteryBacklight::TurnOffScreen()
53 {
54 if (screenState_ != SCREEN_OFF) {
55 BATTERY_HILOGD(FEATURE_CHARGING, "turn off screen");
56 uint32_t devId = 0;
57 composer_->SetDisplayPowerStatus(devId, POWER_STATUS_OFF);
58 screenState_ = SCREEN_OFF;
59 }
60 }
61
GetScreenState()62 int32_t BatteryBacklight::GetScreenState()
63 {
64 return screenState_;
65 }
66 } // namespace PowerMgr
67 } // namespace OHOS
68