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