Michael Wright | 1509a23 | 2018-06-21 02:50:34 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 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 | #undef LOG_TAG |
| 18 | #define LOG_TAG "PowerAdvisor" |
| 19 | |
| 20 | #include <cinttypes> |
| 21 | |
| 22 | #include <utils/Log.h> |
| 23 | #include <utils/Mutex.h> |
| 24 | |
| 25 | #include "PowerAdvisor.h" |
| 26 | |
| 27 | namespace android { |
| 28 | namespace Hwc2 { |
| 29 | |
| 30 | PowerAdvisor::~PowerAdvisor() = default; |
| 31 | |
| 32 | namespace impl { |
| 33 | |
| 34 | namespace V1_0 = android::hardware::power::V1_0; |
| 35 | using V1_3::PowerHint; |
| 36 | |
| 37 | PowerAdvisor::~PowerAdvisor() = default; |
| 38 | |
| 39 | PowerAdvisor::PowerAdvisor() = default; |
| 40 | |
Peiyong Lin | 74ca2f4 | 2019-01-14 19:36:57 -0800 | [diff] [blame] | 41 | void PowerAdvisor::setExpensiveRenderingExpected(DisplayId displayId, bool expected) { |
Michael Wright | 1509a23 | 2018-06-21 02:50:34 +0100 | [diff] [blame] | 42 | if (expected) { |
| 43 | mExpensiveDisplays.insert(displayId); |
| 44 | } else { |
| 45 | mExpensiveDisplays.erase(displayId); |
| 46 | } |
| 47 | |
Michael Wright | 1509a23 | 2018-06-21 02:50:34 +0100 | [diff] [blame] | 48 | const bool expectsExpensiveRendering = !mExpensiveDisplays.empty(); |
| 49 | if (mNotifiedExpensiveRendering != expectsExpensiveRendering) { |
Peiyong Lin | 8193497 | 2018-07-02 11:00:54 -0700 | [diff] [blame] | 50 | const sp<V1_3::IPower> powerHal = getPowerHal(); |
| 51 | if (powerHal == nullptr) { |
| 52 | return; |
| 53 | } |
Michael Wright | 1509a23 | 2018-06-21 02:50:34 +0100 | [diff] [blame] | 54 | auto ret = powerHal->powerHintAsync_1_3(PowerHint::EXPENSIVE_RENDERING, |
| 55 | expectsExpensiveRendering); |
| 56 | // If Power HAL 1.3 was available previously but now fails, |
| 57 | // it may restart, so attempt to reconnect next time |
| 58 | if (!ret.isOk()) { |
| 59 | mReconnectPowerHal = true; |
| 60 | return; |
| 61 | } |
| 62 | mNotifiedExpensiveRendering = expectsExpensiveRendering; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | sp<V1_3::IPower> PowerAdvisor::getPowerHal() { |
| 67 | static sp<V1_3::IPower> sPowerHal_1_3 = nullptr; |
| 68 | static bool sHasPowerHal_1_3 = true; |
| 69 | |
| 70 | if (mReconnectPowerHal) { |
| 71 | sPowerHal_1_3 = nullptr; |
| 72 | mReconnectPowerHal = false; |
| 73 | } |
| 74 | |
| 75 | // Power HAL 1.3 is not guaranteed to be available, thus we need to query |
| 76 | // Power HAL 1.0 first and try to cast it to Power HAL 1.3. |
| 77 | // Power HAL 1.0 is always available, thus if we fail to query it, it means |
| 78 | // Power HAL is not available temporarily and we should retry later. However, |
| 79 | // if Power HAL 1.0 is available and we can't cast it to Power HAL 1.3, |
| 80 | // it means Power HAL 1.3 is not available at all, so we should stop trying. |
| 81 | if (sHasPowerHal_1_3 && sPowerHal_1_3 == nullptr) { |
| 82 | sp<V1_0::IPower> powerHal_1_0 = V1_0::IPower::getService(); |
| 83 | if (powerHal_1_0 != nullptr) { |
| 84 | // Try to cast to Power HAL 1.3 |
| 85 | sPowerHal_1_3 = V1_3::IPower::castFrom(powerHal_1_0); |
| 86 | if (sPowerHal_1_3 == nullptr) { |
| 87 | ALOGW("No Power HAL 1.3 service in system"); |
| 88 | sHasPowerHal_1_3 = false; |
| 89 | } else { |
| 90 | ALOGI("Loaded Power HAL 1.3 service"); |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | return sPowerHal_1_3; |
| 95 | } |
| 96 | |
| 97 | } // namespace impl |
| 98 | } // namespace Hwc2 |
| 99 | } // namespace android |