| /* |
| * Copyright (c) 2018, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "platform-simulation.h" |
| |
| #if OPENTHREAD_SIMULATION_VIRTUAL_TIME |
| |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <openthread/platform/alarm-micro.h> |
| #include <openthread/platform/alarm-milli.h> |
| #include <openthread/platform/diag.h> |
| |
| #define US_PER_MS 1000 |
| |
| extern uint64_t sNow; // microseconds |
| |
| static bool sIsMsRunning = false; |
| static uint32_t sMsAlarm = 0; |
| |
| static bool sIsUsRunning = false; |
| static uint32_t sUsAlarm = 0; |
| |
| void platformAlarmInit(uint32_t aSpeedUpFactor) |
| { |
| OT_UNUSED_VARIABLE(aSpeedUpFactor); |
| |
| sNow = 0; |
| } |
| |
| uint64_t platformAlarmGetNow(void) |
| { |
| return sNow; |
| } |
| |
| void platformAlarmAdvanceNow(uint64_t aDelta) |
| { |
| sNow += aDelta; |
| } |
| |
| uint32_t otPlatAlarmMilliGetNow(void) |
| { |
| return (uint32_t)(sNow / US_PER_MS); |
| } |
| |
| void otPlatAlarmMilliStartAt(otInstance *aInstance, uint32_t aT0, uint32_t aDt) |
| { |
| OT_UNUSED_VARIABLE(aInstance); |
| |
| sMsAlarm = aT0 + aDt; |
| sIsMsRunning = true; |
| } |
| |
| void otPlatAlarmMilliStop(otInstance *aInstance) |
| { |
| OT_UNUSED_VARIABLE(aInstance); |
| |
| sIsMsRunning = false; |
| } |
| |
| uint32_t otPlatAlarmMicroGetNow(void) |
| { |
| return (uint32_t)sNow; |
| } |
| |
| void otPlatAlarmMicroStartAt(otInstance *aInstance, uint32_t aT0, uint32_t aDt) |
| { |
| OT_UNUSED_VARIABLE(aInstance); |
| |
| sUsAlarm = aT0 + aDt; |
| sIsUsRunning = true; |
| } |
| |
| void otPlatAlarmMicroStop(otInstance *aInstance) |
| { |
| OT_UNUSED_VARIABLE(aInstance); |
| |
| sIsUsRunning = false; |
| } |
| |
| uint64_t platformAlarmGetNext(void) |
| { |
| uint64_t remaining = INT64_MAX; |
| |
| if (sIsMsRunning) |
| { |
| int32_t milli = (int32_t)(sMsAlarm - otPlatAlarmMilliGetNow()); |
| |
| if (milli < 0) |
| { |
| remaining = 0; |
| } |
| else |
| { |
| remaining = (uint64_t)milli; |
| remaining *= US_PER_MS; |
| } |
| } |
| |
| #if OPENTHREAD_CONFIG_PLATFORM_USEC_TIMER_ENABLE |
| if (sIsUsRunning) |
| { |
| int32_t micro = (int32_t)(sUsAlarm - otPlatAlarmMicroGetNow()); |
| |
| if (micro < 0) |
| { |
| remaining = 0; |
| } |
| else if (remaining > ((uint64_t)micro)) |
| { |
| remaining = (uint64_t)micro; |
| } |
| } |
| #endif |
| |
| return remaining; |
| } |
| |
| void platformAlarmProcess(otInstance *aInstance) |
| { |
| int32_t remaining; |
| |
| if (sIsMsRunning) |
| { |
| remaining = (int32_t)(sMsAlarm - otPlatAlarmMilliGetNow()); |
| |
| if (remaining <= 0) |
| { |
| sIsMsRunning = false; |
| |
| #if OPENTHREAD_CONFIG_DIAG_ENABLE |
| |
| if (otPlatDiagModeGet()) |
| { |
| otPlatDiagAlarmFired(aInstance); |
| } |
| else |
| #endif |
| { |
| otPlatAlarmMilliFired(aInstance); |
| } |
| } |
| } |
| |
| #if OPENTHREAD_CONFIG_PLATFORM_USEC_TIMER_ENABLE |
| |
| if (sIsUsRunning) |
| { |
| remaining = (int32_t)(sUsAlarm - otPlatAlarmMicroGetNow()); |
| |
| if (remaining <= 0) |
| { |
| sIsUsRunning = false; |
| |
| otPlatAlarmMicroFired(aInstance); |
| } |
| } |
| |
| #endif // OPENTHREAD_CONFIG_PLATFORM_USEC_TIMER_ENABLE |
| } |
| |
| uint64_t otPlatTimeGet(void) |
| { |
| return platformAlarmGetNow(); |
| } |
| |
| #if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE |
| uint16_t otPlatTimeGetXtalAccuracy(void) |
| { |
| return 0; |
| } |
| #endif |
| |
| #endif // OPENTHREAD_SIMULATION_VIRTUAL_TIME |