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/*
*
* Copyright (c) 2020 Project CHIP Authors
* All rights reserved.
*
* 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.
*/
/**
* @file
* Provides implementations of the CHIP System Layer platform
* time/clock functions that are suitable for use on the Ameba platform.
*/
/* this file behaves like a config.h, comes first */
#include <platform/internal/CHIPDeviceLayerInternal.h>
#include <platform/Ameba/SystemTimeSupport.h>
#include <support/logging/CHIPLogging.h>
#include "task.h"
#include <chip_porting.h>
#include <time.h>
struct rtkTimeVal
{
uint32_t tv_sec; /* seconds */
uint32_t tv_usec; /* microseconds */
};
namespace chip {
namespace System {
namespace Clock {
namespace Internal {
ClockImpl gClockImpl;
} // namespace Internal
Microseconds64 ClockImpl::GetMonotonicMicroseconds64(void)
{
return Clock::Microseconds64(ameba_get_clock_time());
}
Milliseconds64 ClockImpl::GetMonotonicMilliseconds64(void)
{
return std::chrono::duration_cast<Milliseconds64>(GetMonotonicMicroseconds64());
}
CHIP_ERROR ClockImpl::GetClock_RealTime(Clock::Microseconds64 & curTime)
{
// TODO(19081): This platform does not properly error out if wall clock has
// not been set. For now, short circuit this.
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
#if 0
time_t seconds;
struct rtkTimeVal tv;
seconds = matter_rtc_read();
tv.tv_sec = (uint32_t) seconds;
tv.tv_usec = 0;
if (tv.tv_sec < CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD)
{
return CHIP_ERROR_REAL_TIME_NOT_SYNCED;
}
static_assert(CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD >= 0, "We might be letting through negative tv_sec values!");
curTime = Microseconds64((static_cast<uint64_t>(tv.tv_sec) * UINT64_C(1000000)) + static_cast<uint64_t>(tv.tv_usec));
return CHIP_NO_ERROR;
#endif
}
CHIP_ERROR ClockImpl::GetClock_RealTimeMS(Milliseconds64 & aCurTime)
{
Microseconds64 curTimeUs;
auto err = GetClock_RealTime(curTimeUs);
aCurTime = std::chrono::duration_cast<Milliseconds64>(curTimeUs);
return err;
}
CHIP_ERROR ClockImpl::SetClock_RealTime(Microseconds64 aNewCurTime)
{
struct rtkTimeVal tv;
tv.tv_sec = static_cast<uint32_t>(aNewCurTime.count() / UINT64_C(1000000));
tv.tv_usec = static_cast<uint32_t>(aNewCurTime.count() % UINT64_C(1000000));
matter_rtc_write(tv.tv_sec);
return CHIP_NO_ERROR;
}
CHIP_ERROR InitClock_RealTime()
{
Clock::Microseconds64 curTime =
Clock::Microseconds64((static_cast<uint64_t>(CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD) * UINT64_C(1000000)));
// Use CHIP_SYSTEM_CONFIG_VALID_REAL_TIME_THRESHOLD as the initial value of RealTime.
// Then the RealTime obtained from GetClock_RealTime will be always valid.
//
// TODO(19081): This is broken because it causes the platform to report
// that it does have wall clock time when it actually doesn't.
return System::SystemClock().SetClock_RealTime(curTime);
}
} // namespace Clock
} // namespace System
} // namespace chip