1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 //#define LOG_NDEBUG 0
18 #define LOG_TAG "EmulatedTorchState"
19 #include "EmulatedTorchState.h"
20 
21 #include <log/log.h>
22 
23 namespace android {
24 
25 using android::google_camera_hal::TorchModeStatus;
26 
SetTorchMode(TorchMode mode)27 status_t EmulatedTorchState::SetTorchMode(TorchMode mode) {
28   std::lock_guard<std::mutex> lock(mutex_);
29   if (camera_open_) {
30     ALOGE("%s: Camera device open, torch cannot be controlled using this API!",
31           __FUNCTION__);
32     return UNKNOWN_ERROR;
33   }
34 
35   torch_cb_(camera_id_, (mode == TorchMode::kOn)
36                             ? TorchModeStatus::kAvailableOn
37                             : TorchModeStatus::kAvailableOff);
38 
39   return OK;
40 }
41 
AcquireFlashHw()42 void EmulatedTorchState::AcquireFlashHw() {
43   std::lock_guard<std::mutex> lock(mutex_);
44   camera_open_ = true;
45   torch_cb_(camera_id_, TorchModeStatus::kNotAvailable);
46 }
47 
ReleaseFlashHw()48 void EmulatedTorchState::ReleaseFlashHw() {
49   std::lock_guard<std::mutex> lock(mutex_);
50   camera_open_ = false;
51   torch_cb_(camera_id_, TorchModeStatus::kAvailableOff);
52 }
53 
54 }  // namespace android
55