1 /*
2 * Copyright (C) 2017 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 #include "chre/platform/power_control_manager.h"
18
19 #include "chre/platform/slpi/power_control_util.h"
20 #include "chre/platform/slpi/see/island_vote_client.h"
21 #include "chre/platform/system_time.h"
22 #include "chre/util/lock_guard.h"
23
24 #ifdef CHRE_USE_BUFFERED_LOGGING
25 #include "chre/platform/shared/log_buffer_manager.h"
26 #endif
27
28 namespace chre {
29
PowerControlManagerBase()30 PowerControlManagerBase::PowerControlManagerBase() : mHostIsAwake(true) {
31 #ifdef CHRE_THREAD_UTIL_ENABLED
32 sns_client_create_thread_utilization_client(&mThreadUtilClient);
33 #endif // CHRE_THREAD_UTIL_ENABLED
34 }
35
~PowerControlManagerBase()36 PowerControlManagerBase::~PowerControlManagerBase() {
37 #ifdef CHRE_THREAD_UTIL_ENABLED
38 sns_client_remove_thread_utilization_client(mThreadUtilClient);
39 #endif // CHRE_THREAD_UTIL_ENABLED
40 }
41
voteBigImage(bool bigImage)42 bool PowerControlManagerBase::voteBigImage(bool bigImage) {
43 return IslandVoteClientSingleton::get()->voteBigImage(bigImage);
44 }
45
onHostWakeSuspendEvent(bool awake)46 void PowerControlManagerBase::onHostWakeSuspendEvent(bool awake) {
47 if (mHostIsAwake != awake) {
48 mHostIsAwake = awake;
49
50 if (!awake) {
51 EventLoopManagerSingleton::get()
52 ->getHostCommsManager()
53 .resetBlameForNanoappHostWakeup();
54 }
55
56 EventLoopManagerSingleton::get()->getEventLoop().postEventOrDie(
57 mHostIsAwake ? CHRE_EVENT_HOST_AWAKE : CHRE_EVENT_HOST_ASLEEP,
58 nullptr /* eventData */, nullptr /* freeCallback */);
59
60 #ifdef CHRE_AUDIO_SUPPORT_ENABLED
61 if (awake) {
62 auto callback = [](uint16_t /*type*/, void * /*data*/,
63 void * /*extraData*/) {
64 EventLoopManagerSingleton::get()
65 ->getAudioRequestManager()
66 .getPlatformAudio()
67 .onHostAwake();
68 };
69
70 EventLoopManagerSingleton::get()->deferCallback(
71 SystemCallbackType::AudioHandleHostAwake, nullptr, callback);
72 }
73 #endif // CHRE_AUDIO_SUPPORT_ENABLED
74
75 #ifdef CHRE_USE_BUFFERED_LOGGING
76 if (awake) {
77 LogBufferManagerSingleton::get()->flushLogs();
78 }
79 #endif
80 }
81 }
82
preEventLoopProcess(size_t)83 void PowerControlManager::preEventLoopProcess(size_t /* numPendingEvents */) {}
84
postEventLoopProcess(size_t numPendingEvents)85 void PowerControlManager::postEventLoopProcess(size_t numPendingEvents) {
86 #ifdef CHRE_THREAD_UTIL_ENABLED
87 // Although this execution point does not actually represent the start
88 // of the CHRE thread's activity, we only care about cases where the
89 // CHRE's event queue is highly backlogged for voting higher clock rates.
90 if (mIsThreadIdle && numPendingEvents != 0) {
91 sns_client_thread_utilization_start(mThreadUtilClient);
92 mIsThreadIdle = false;
93 } else if (!mIsThreadIdle) {
94 // Update the time profile as frequently as possible so that clock updates
95 // are not deferred until all events are processed.
96 sns_client_thread_utilization_stop(mThreadUtilClient);
97 if (numPendingEvents != 0) {
98 sns_client_thread_utilization_start(mThreadUtilClient);
99 } else {
100 mIsThreadIdle = true;
101 }
102 }
103 #endif // CHRE_THREAD_UTIL_ENABLED
104
105 if (numPendingEvents == 0 && !slpiInUImage()) {
106 voteBigImage(false /* bigImage */);
107 }
108 }
109
hostIsAwake()110 bool PowerControlManager::hostIsAwake() {
111 return mHostIsAwake;
112 }
113
114 } // namespace chre
115
