mirror of
https://github.com/espressif/openthread.git
synced 2026-07-09 22:00:19 +00:00
Jonathan Hui
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*
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* Copyright (c) 2017, The OpenThread Authors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* This file implements the OpenThread platform abstraction for miscellaneous behaviors.
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*/
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#include <openthread/platform/misc.h>
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#include "em_rmu.h"
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#include "platform-efr32.h"
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static uint32_t sResetCause;
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void efr32MiscInit(void)
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{
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// Read the cause of last reset.
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sResetCause = RMU_ResetCauseGet();
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// Clear the register, as the causes cumulate over resets.
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RMU_ResetCauseClear();
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}
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void otPlatReset(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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NVIC_SystemReset();
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}
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otPlatResetReason otPlatGetResetReason(otInstance *aInstance)
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{
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OT_UNUSED_VARIABLE(aInstance);
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otPlatResetReason reason;
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if (sResetCause & RMU_RSTCAUSE_PORST)
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{
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reason = OT_PLAT_RESET_REASON_POWER_ON;
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}
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else if (sResetCause & RMU_RSTCAUSE_SYSREQRST)
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{
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reason = OT_PLAT_RESET_REASON_SOFTWARE;
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}
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else if (sResetCause & RMU_RSTCAUSE_WDOGRST)
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{
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reason = OT_PLAT_RESET_REASON_WATCHDOG;
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}
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else if (sResetCause & RMU_RSTCAUSE_EXTRST)
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{
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reason = OT_PLAT_RESET_REASON_EXTERNAL;
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}
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else if (sResetCause & RMU_RSTCAUSE_LOCKUPRST)
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{
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reason = OT_PLAT_RESET_REASON_FAULT;
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}
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else if ((sResetCause & RMU_RSTCAUSE_AVDDBOD) || (sResetCause & RMU_RSTCAUSE_DECBOD) ||
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(sResetCause & RMU_RSTCAUSE_DVDDBOD) || (sResetCause & RMU_RSTCAUSE_EM4RST))
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{
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reason = OT_PLAT_RESET_REASON_ASSERT;
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}
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else
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{
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reason = OT_PLAT_RESET_REASON_UNKNOWN;
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}
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return reason;
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}
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void otPlatWakeHost(void)
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{
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// TODO: implement an operation to wake the host from sleep state.
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}
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