93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
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/*
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* Copyright (C) 2011 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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#define LOG_TAG "common_time"
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#include <utils/Log.h>
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#include <assert.h>
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#include <stdint.h>
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#include <common_time/local_clock.h>
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#include <hardware/hardware.h>
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#include <hardware/local_time_hal.h>
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#include <utils/Errors.h>
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#include <utils/threads.h>
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namespace android {
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Mutex LocalClock::dev_lock_;
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local_time_hw_device_t* LocalClock::dev_ = NULL;
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LocalClock::LocalClock() {
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int res;
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const hw_module_t* mod;
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AutoMutex lock(&dev_lock_);
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if (dev_ != NULL)
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return;
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res = hw_get_module_by_class(LOCAL_TIME_HARDWARE_MODULE_ID, NULL, &mod);
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if (res) {
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ALOGE("Failed to open local time HAL module (res = %d)", res);
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} else {
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res = local_time_hw_device_open(mod, &dev_);
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if (res) {
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ALOGE("Failed to open local time HAL device (res = %d)", res);
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dev_ = NULL;
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}
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}
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}
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bool LocalClock::initCheck() {
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return (NULL != dev_);
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}
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int64_t LocalClock::getLocalTime() {
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assert(NULL != dev_);
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assert(NULL != dev_->get_local_time);
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return dev_->get_local_time(dev_);
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}
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uint64_t LocalClock::getLocalFreq() {
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assert(NULL != dev_);
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assert(NULL != dev_->get_local_freq);
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return dev_->get_local_freq(dev_);
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}
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status_t LocalClock::setLocalSlew(int16_t rate) {
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assert(NULL != dev_);
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if (!dev_->set_local_slew)
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return INVALID_OPERATION;
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return static_cast<status_t>(dev_->set_local_slew(dev_, rate));
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}
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int32_t LocalClock::getDebugLog(struct local_time_debug_event* records,
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int max_records) {
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assert(NULL != dev_);
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if (!dev_->get_debug_log)
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return INVALID_OPERATION;
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return dev_->get_debug_log(dev_, records, max_records);
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}
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} // namespace android
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