| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define ATRACE_TAG (ATRACE_TAG_POWER | ATRACE_TAG_HAL) |
| #define LOG_TAG "android.hardware.power@1.3-service.crosshatch-libperfmgr" |
| |
| #include <android-base/file.h> |
| #include <android-base/logging.h> |
| #include <android-base/properties.h> |
| #include <android-base/strings.h> |
| #include <android-base/stringprintf.h> |
| |
| #include <mutex> |
| |
| #include <utils/Log.h> |
| #include <utils/Trace.h> |
| |
| #include "Power.h" |
| #include "display-helper.h" |
| |
| extern struct stats_section master_sections[]; |
| |
| namespace android { |
| namespace hardware { |
| namespace power { |
| namespace V1_3 { |
| namespace implementation { |
| |
| using ::android::hardware::power::V1_0::Feature; |
| using ::android::hardware::power::V1_0::Status; |
| using ::android::hardware::hidl_vec; |
| using ::android::hardware::Return; |
| using ::android::hardware::Void; |
| |
| Power::Power() : |
| mHintManager(nullptr), |
| mInteractionHandler(nullptr), |
| mVRModeOn(false), |
| mSustainedPerfModeOn(false), |
| mCameraStreamingModeOn(false), |
| mReady(false) { |
| |
| mInitThread = |
| std::thread([this](){ |
| android::base::WaitForProperty(kPowerHalInitProp, "1"); |
| mHintManager = HintManager::GetFromJSON(kPowerHalConfigPath); |
| if (!mHintManager) { |
| LOG(FATAL) << "Invalid config: " << kPowerHalConfigPath; |
| } |
| mInteractionHandler = std::make_unique<InteractionHandler>(mHintManager); |
| mInteractionHandler->Init(); |
| std::string state = android::base::GetProperty(kPowerHalStateProp, ""); |
| if (state == "CAMERA_STREAMING") { |
| ALOGI("Initialize with CAMERA_STREAMING on"); |
| mHintManager->DoHint("CAMERA_STREAMING"); |
| mCameraStreamingModeOn = true; |
| } else if (state == "SUSTAINED_PERFORMANCE") { |
| ALOGI("Initialize with SUSTAINED_PERFORMANCE on"); |
| mHintManager->DoHint("SUSTAINED_PERFORMANCE"); |
| mSustainedPerfModeOn = true; |
| } else if (state == "VR_MODE") { |
| ALOGI("Initialize with VR_MODE on"); |
| mHintManager->DoHint("VR_MODE"); |
| mVRModeOn = true; |
| } else if (state == "VR_SUSTAINED_PERFORMANCE") { |
| ALOGI("Initialize with SUSTAINED_PERFORMANCE and VR_MODE on"); |
| mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE"); |
| mSustainedPerfModeOn = true; |
| mVRModeOn = true; |
| } else { |
| ALOGI("Initialize PowerHAL"); |
| } |
| |
| state = android::base::GetProperty(kPowerHalAudioProp, ""); |
| if (state == "AUDIO_LOW_LATENCY") { |
| ALOGI("Initialize with AUDIO_LOW_LATENCY on"); |
| mHintManager->DoHint("AUDIO_LOW_LATENCY"); |
| } |
| |
| state = android::base::GetProperty(kPowerHalRenderingProp, ""); |
| if (state == "EXPENSIVE_RENDERING") { |
| ALOGI("Initialize with EXPENSIVE_RENDERING on"); |
| mHintManager->DoHint("EXPENSIVE_RENDERING"); |
| } |
| // Now start to take powerhint |
| mReady.store(true); |
| }); |
| mInitThread.detach(); |
| |
| } |
| |
| // Methods from ::android::hardware::power::V1_0::IPower follow. |
| Return<void> Power::setInteractive(bool /* interactive */) { |
| return Void(); |
| } |
| |
| Return<void> Power::powerHint(PowerHint_1_0 hint, int32_t data) { |
| if (!isSupportedGovernor() || !mReady) { |
| return Void(); |
| } |
| |
| switch(hint) { |
| case PowerHint_1_0::INTERACTION: |
| if (mVRModeOn || mSustainedPerfModeOn) { |
| ALOGV("%s: ignoring due to other active perf hints", __func__); |
| } else { |
| mInteractionHandler->Acquire(data); |
| } |
| break; |
| case PowerHint_1_0::SUSTAINED_PERFORMANCE: |
| if (data && !mSustainedPerfModeOn) { |
| ALOGD("SUSTAINED_PERFORMANCE ON"); |
| if (!mVRModeOn) { // Sustained mode only. |
| mHintManager->DoHint("SUSTAINED_PERFORMANCE"); |
| } else { // Sustained + VR mode. |
| mHintManager->EndHint("VR_MODE"); |
| mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE"); |
| } |
| mSustainedPerfModeOn = true; |
| } else if (!data && mSustainedPerfModeOn) { |
| ALOGD("SUSTAINED_PERFORMANCE OFF"); |
| mHintManager->EndHint("VR_SUSTAINED_PERFORMANCE"); |
| mHintManager->EndHint("SUSTAINED_PERFORMANCE"); |
| if (mVRModeOn) { // Switch back to VR Mode. |
| mHintManager->DoHint("VR_MODE"); |
| } |
| mSustainedPerfModeOn = false; |
| } |
| break; |
| case PowerHint_1_0::VR_MODE: |
| if (data && !mVRModeOn) { |
| ALOGD("VR_MODE ON"); |
| if (!mSustainedPerfModeOn) { // VR mode only. |
| mHintManager->DoHint("VR_MODE"); |
| } else { // Sustained + VR mode. |
| mHintManager->EndHint("SUSTAINED_PERFORMANCE"); |
| mHintManager->DoHint("VR_SUSTAINED_PERFORMANCE"); |
| } |
| mVRModeOn = true; |
| } else if (!data && mVRModeOn) { |
| ALOGD("VR_MODE OFF"); |
| mHintManager->EndHint("VR_SUSTAINED_PERFORMANCE"); |
| mHintManager->EndHint("VR_MODE"); |
| if (mSustainedPerfModeOn) { // Switch back to sustained Mode. |
| mHintManager->DoHint("SUSTAINED_PERFORMANCE"); |
| } |
| mVRModeOn = false; |
| } |
| break; |
| case PowerHint_1_0::LAUNCH: |
| ATRACE_BEGIN("launch"); |
| if (mVRModeOn || mSustainedPerfModeOn) { |
| ALOGV("%s: ignoring due to other active perf hints", __func__); |
| } else { |
| if (data) { |
| // Hint until canceled |
| ATRACE_INT("launch_lock", 1); |
| mHintManager->DoHint("LAUNCH"); |
| ALOGD("LAUNCH ON"); |
| } else { |
| ATRACE_INT("launch_lock", 0); |
| mHintManager->EndHint("LAUNCH"); |
| ALOGD("LAUNCH OFF"); |
| } |
| } |
| ATRACE_END(); |
| break; |
| case PowerHint_1_0::LOW_POWER: |
| { |
| ATRACE_BEGIN("low-power"); |
| |
| if (data) { |
| // Device in battery saver mode, enable display low power mode |
| set_display_lpm(true); |
| } else { |
| // Device exiting battery saver mode, disable display low power mode |
| set_display_lpm(false); |
| } |
| ATRACE_END(); |
| } |
| break; |
| default: |
| break; |
| |
| } |
| return Void(); |
| } |
| |
| Return<void> Power::setFeature(Feature /*feature*/, bool /*activate*/) { |
| //Nothing to do |
| return Void(); |
| } |
| |
| Return<void> Power::getPlatformLowPowerStats(getPlatformLowPowerStats_cb _hidl_cb) { |
| LOG(ERROR) << "getPlatformLowPowerStats not supported. Use IPowerStats HAL."; |
| _hidl_cb({}, Status::SUCCESS); |
| return Void(); |
| } |
| |
| // Methods from ::android::hardware::power::V1_1::IPower follow. |
| Return<void> Power::getSubsystemLowPowerStats(getSubsystemLowPowerStats_cb _hidl_cb) { |
| LOG(ERROR) << "getSubsystemLowPowerStats not supported. Use IPowerStats HAL."; |
| _hidl_cb({}, Status::SUCCESS); |
| return Void(); |
| } |
| |
| bool Power::isSupportedGovernor() { |
| std::string buf; |
| if (android::base::ReadFileToString("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor", &buf)) { |
| buf = android::base::Trim(buf); |
| } |
| // Only support EAS 1.2, legacy EAS |
| if (buf == "schedutil" || buf == "sched") { |
| return true; |
| } else { |
| LOG(ERROR) << "Governor not supported by powerHAL, skipping"; |
| return false; |
| } |
| } |
| |
| Return<void> Power::powerHintAsync(PowerHint_1_0 hint, int32_t data) { |
| // just call the normal power hint in this oneway function |
| return powerHint(hint, data); |
| } |
| |
| // Methods from ::android::hardware::power::V1_2::IPower follow. |
| Return<void> Power::powerHintAsync_1_2(PowerHint_1_2 hint, int32_t data) { |
| if (!isSupportedGovernor() || !mReady) { |
| return Void(); |
| } |
| |
| switch(hint) { |
| case PowerHint_1_2::AUDIO_LOW_LATENCY: |
| ATRACE_BEGIN("audio_low_latency"); |
| if (data) { |
| // Hint until canceled |
| ATRACE_INT("audio_low_latency_lock", 1); |
| mHintManager->DoHint("AUDIO_LOW_LATENCY"); |
| ALOGD("AUDIO LOW LATENCY ON"); |
| } else { |
| ATRACE_INT("audio_low_latency_lock", 0); |
| mHintManager->EndHint("AUDIO_LOW_LATENCY"); |
| ALOGD("AUDIO LOW LATENCY OFF"); |
| } |
| ATRACE_END(); |
| break; |
| case PowerHint_1_2::AUDIO_STREAMING: |
| ATRACE_BEGIN("audio_streaming"); |
| if (mVRModeOn || mSustainedPerfModeOn) { |
| ALOGV("%s: ignoring due to other active perf hints", __func__); |
| } else { |
| if (data) { |
| // Hint until canceled |
| ATRACE_INT("audio_streaming_lock", 1); |
| mHintManager->DoHint("AUDIO_STREAMING"); |
| ALOGD("AUDIO STREAMING ON"); |
| } else { |
| ATRACE_INT("audio_streaming_lock", 0); |
| mHintManager->EndHint("AUDIO_STREAMING"); |
| ALOGD("AUDIO STREAMING OFF"); |
| } |
| } |
| ATRACE_END(); |
| break; |
| case PowerHint_1_2::CAMERA_LAUNCH: |
| ATRACE_BEGIN("camera_launch"); |
| if (data > 0) { |
| ATRACE_INT("camera_launch_lock", 1); |
| mHintManager->DoHint("CAMERA_LAUNCH", std::chrono::milliseconds(data)); |
| ALOGD("CAMERA LAUNCH ON: %d MS, LAUNCH ON: 2500 MS", data); |
| // boosts 2.5s for launching |
| mHintManager->DoHint("LAUNCH", std::chrono::milliseconds(2500)); |
| } else if (data == 0) { |
| ATRACE_INT("camera_launch_lock", 0); |
| mHintManager->EndHint("CAMERA_LAUNCH"); |
| ALOGD("CAMERA LAUNCH OFF"); |
| } else { |
| ALOGE("CAMERA LAUNCH INVALID DATA: %d", data); |
| } |
| ATRACE_END(); |
| break; |
| case PowerHint_1_2::CAMERA_STREAMING: |
| ATRACE_BEGIN("camera_streaming"); |
| if (data > 0) { |
| ATRACE_INT("camera_streaming_lock", 1); |
| mHintManager->DoHint("CAMERA_STREAMING"); |
| ALOGD("CAMERA STREAMING ON"); |
| mCameraStreamingModeOn = true; |
| } else if (data == 0) { |
| ATRACE_INT("camera_streaming_lock", 0); |
| mHintManager->EndHint("CAMERA_STREAMING"); |
| // Boost 1s for tear down |
| mHintManager->DoHint("CAMERA_LAUNCH", std::chrono::seconds(1)); |
| ALOGD("CAMERA STREAMING OFF"); |
| mCameraStreamingModeOn = false; |
| } else { |
| ALOGE("CAMERA STREAMING INVALID DATA: %d", data); |
| } |
| ATRACE_END(); |
| break; |
| case PowerHint_1_2::CAMERA_SHOT: |
| ATRACE_BEGIN("camera_shot"); |
| if (data > 0) { |
| ATRACE_INT("camera_shot_lock", 1); |
| mHintManager->DoHint("CAMERA_SHOT", std::chrono::milliseconds(data)); |
| ALOGD("CAMERA SHOT ON: %d MS", data); |
| } else if (data == 0) { |
| ATRACE_INT("camera_shot_lock", 0); |
| mHintManager->EndHint("CAMERA_SHOT"); |
| ALOGD("CAMERA SHOT OFF"); |
| } else { |
| ALOGE("CAMERA SHOT INVALID DATA: %d", data); |
| } |
| ATRACE_END(); |
| break; |
| default: |
| return powerHint(static_cast<PowerHint_1_0>(hint), data); |
| } |
| return Void(); |
| } |
| |
| // Methods from ::android::hardware::power::V1_3::IPower follow. |
| Return<void> Power::powerHintAsync_1_3(PowerHint_1_3 hint, int32_t data) { |
| if (!isSupportedGovernor() || !mReady) { |
| return Void(); |
| } |
| |
| if (hint == PowerHint_1_3::EXPENSIVE_RENDERING) { |
| if (mVRModeOn || mSustainedPerfModeOn) { |
| ALOGV("%s: ignoring due to other active perf hints", __func__); |
| return Void(); |
| } |
| |
| if (data > 0) { |
| ATRACE_INT("EXPENSIVE_RENDERING", 1); |
| mHintManager->DoHint("EXPENSIVE_RENDERING"); |
| } else { |
| ATRACE_INT("EXPENSIVE_RENDERING", 0); |
| mHintManager->EndHint("EXPENSIVE_RENDERING"); |
| } |
| } else { |
| return powerHintAsync_1_2(static_cast<PowerHint_1_2>(hint), data); |
| } |
| |
| return Void(); |
| } |
| |
| constexpr const char* boolToString(bool b) { |
| return b ? "true" : "false"; |
| } |
| |
| Return<void> Power::debug(const hidl_handle& handle, const hidl_vec<hidl_string>&) { |
| if (handle != nullptr && handle->numFds >= 1 && mReady) { |
| int fd = handle->data[0]; |
| |
| std::string buf(android::base::StringPrintf("HintManager Running: %s\n" |
| "VRMode: %s\n" |
| "CameraStreamingMode: %s\n" |
| "SustainedPerformanceMode: %s\n", |
| boolToString(mHintManager->IsRunning()), |
| boolToString(mVRModeOn), |
| boolToString(mCameraStreamingModeOn), |
| boolToString(mSustainedPerfModeOn))); |
| // Dump nodes through libperfmgr |
| mHintManager->DumpToFd(fd); |
| if (!android::base::WriteStringToFd(buf, fd)) { |
| PLOG(ERROR) << "Failed to dump state to fd"; |
| } |
| |
| fsync(fd); |
| } |
| return Void(); |
| } |
| |
| } // namespace implementation |
| } // namespace V1_3 |
| } // namespace power |
| } // namespace hardware |
| } // namespace android |
