60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <cutils/log.h>
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#include <utils/Errors.h>
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#include "PowerHAL.h"
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namespace android {
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// ---------------------------------------------------------------------------
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PowerHAL::PowerHAL() : mPowerModule(0), mVSyncHintEnabled(false) {
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int err = hw_get_module(POWER_HARDWARE_MODULE_ID,
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(const hw_module_t **)&mPowerModule);
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ALOGW_IF(err, "%s module not found", POWER_HARDWARE_MODULE_ID);
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}
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PowerHAL::~PowerHAL() {
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}
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status_t PowerHAL::initCheck() const {
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return mPowerModule ? NO_ERROR : NO_INIT;
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}
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status_t PowerHAL::vsyncHint(bool enabled) {
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if (!mPowerModule) {
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return NO_INIT;
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}
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if (mPowerModule->common.module_api_version >= POWER_MODULE_API_VERSION_0_2) {
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if (mPowerModule->powerHint) {
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if (mVSyncHintEnabled != bool(enabled)) {
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mPowerModule->powerHint(mPowerModule,
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POWER_HINT_VSYNC, (void*)enabled);
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mVSyncHintEnabled = bool(enabled);
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}
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}
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}
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return NO_ERROR;
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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