mirror of https://github.com/ARMmbed/mbed-os.git
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/***************************************************************************//**
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* @file resetreason_api.c
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*******************************************************************************
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* @section License
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* <b>(C) Copyright 2018 Silicon Labs, http://www.silabs.com</b>
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*******************************************************************************
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* 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, WITHOUT
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* 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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******************************************************************************/
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#include "device.h"
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#include "reset_reason_api.h"
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#if DEVICE_RESET_REASON
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#include "em_rmu.h"
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reset_reason_t hal_reset_reason_get(void)
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{
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uint32_t reasonmask = RMU_ResetCauseGet();
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/* Only care about the upper bit, since that is 'most significant' reset reason */
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reasonmask = 1 << (31 - __CLZ(reasonmask));
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if (reasonmask & RMU_RSTCAUSE_PORST) {
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return RESET_REASON_POWER_ON;
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}
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#if defined(RMU_RSTCAUSE_BODUNREGRST)
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if (reasonmask & RMU_RSTCAUSE_BODUNREGRST) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(RMU_RSTCAUSE_BODREGRST)
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if (reasonmask & RMU_RSTCAUSE_BODREGRST) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(RMU_RSTCAUSE_AVDDBOD)
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if (reasonmask & RMU_RSTCAUSE_AVDDBOD) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(RMU_RSTCAUSE_DVDDBOD)
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if (reasonmask & RMU_RSTCAUSE_DVDDBOD) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(RMU_RSTCAUSE_DECBOD)
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if (reasonmask & RMU_RSTCAUSE_DECBOD) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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if (reasonmask & RMU_RSTCAUSE_EXTRST) {
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return RESET_REASON_PIN_RESET;
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}
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if (reasonmask & RMU_RSTCAUSE_WDOGRST) {
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return RESET_REASON_WATCHDOG;
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}
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if (reasonmask & RMU_RSTCAUSE_LOCKUPRST) {
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return RESET_REASON_LOCKUP;
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}
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if (reasonmask & RMU_RSTCAUSE_SYSREQRST) {
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return RESET_REASON_SOFTWARE;
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}
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#if defined(RMU_RSTCAUSE_EM4RST)
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if (reasonmask & RMU_RSTCAUSE_EM4RST) {
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return RESET_REASON_WAKE_LOW_POWER;
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}
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#endif
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#if defined(RMU_RSTCAUSE_EM4WURST)
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if (reasonmask & RMU_RSTCAUSE_EM4WURST) {
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return RESET_REASON_WAKE_LOW_POWER;
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}
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#endif
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#if defined(RMU_RSTCAUSE_BODAVDD0)
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if (reasonmask & RMU_RSTCAUSE_BODAVDD0) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(RMU_RSTCAUSE_BODAVDD1)
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if (reasonmask & RMU_RSTCAUSE_BODAVDD1) {
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return RESET_REASON_BROWN_OUT;
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}
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#endif
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#if defined(BU_PRESENT) && defined(_SILICON_LABS_32B_SERIES_0)
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if (reasonmask & RMU_RSTCAUSE_BUBODVDDDREG) {
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return RESET_REASON_BROWN_OUT;
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}
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if (reasonmask & RMU_RSTCAUSE_BUBODBUVIN) {
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return RESET_REASON_BROWN_OUT;
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}
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if (reasonmask & RMU_RSTCAUSE_BUBODUNREG) {
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return RESET_REASON_BROWN_OUT;
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}
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if (reasonmask & RMU_RSTCAUSE_BUBODREG) {
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return RESET_REASON_BROWN_OUT;
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}
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if (reasonmask & RMU_RSTCAUSE_BUMODERST) {
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return RESET_REASON_PLATFORM;
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}
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#elif defined(RMU_RSTCAUSE_BUMODERST)
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if (reasonmask & RMU_RSTCAUSE_BUMODERST) {
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return RESET_REASON_PLATFORM;
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}
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#endif
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return RESET_REASON_UNKNOWN;
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}
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uint32_t hal_reset_reason_get_raw(void)
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{
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return RMU->RSTCAUSE;
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}
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void hal_reset_reason_clear(void)
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{
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RMU_ResetCauseClear();
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}
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#endif /* DEVICE_RESET_REASON */
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