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/*
* Copyright (C) 2012 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.
*/
#include <stdint.h>
#include <sys/types.h>
#include <cutils/log.h>
#include <utils/Errors.h>
#include "PowerHAL.h"
namespace android {
// ---------------------------------------------------------------------------
PowerHAL::PowerHAL() : mPowerModule(0), mVSyncHintEnabled(false) {
int err = hw_get_module(POWER_HARDWARE_MODULE_ID,
(const hw_module_t **)&mPowerModule);
ALOGW_IF(err, "%s module not found", POWER_HARDWARE_MODULE_ID);
}
PowerHAL::~PowerHAL() {
}
status_t PowerHAL::initCheck() const {
return mPowerModule ? NO_ERROR : NO_INIT;
}
status_t PowerHAL::vsyncHint(bool enabled) {
if (!mPowerModule) {
return NO_INIT;
}
if (mPowerModule->common.module_api_version >= POWER_MODULE_API_VERSION_0_2) {
if (mPowerModule->powerHint) {
if (mVSyncHintEnabled != bool(enabled)) {
mPowerModule->powerHint(mPowerModule,
POWER_HINT_VSYNC, (void*)enabled);
mVSyncHintEnabled = bool(enabled);
}
}
}
return NO_ERROR;
}
// ---------------------------------------------------------------------------
}; // namespace android
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