mirror of https://github.com/ARMmbed/mbed-os.git
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2017-2018 Nuvoton
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may 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,
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* WITHOUT 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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#include "reset_reason_api.h"
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#if DEVICE_RESET_REASON
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#include "cmsis.h"
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/* All reset source flags */
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#define SYS_RSTSTS_ALLRF_Msk \
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(SYS_RSTSTS_PORF_Msk | \
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SYS_RSTSTS_PINRF_Msk | \
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SYS_RSTSTS_WDTRF_Msk | \
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SYS_RSTSTS_LVRF_Msk | \
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SYS_RSTSTS_BODRF_Msk | \
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SYS_RSTSTS_SYSRF_Msk | \
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SYS_RSTSTS_CPURF_Msk)
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reset_reason_t hal_reset_reason_get(void)
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{
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reset_reason_t reset_reason_cast;
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uint32_t reset_reason_count = 0;
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if (SYS_IS_POR_RST()) {
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reset_reason_cast = RESET_REASON_POWER_ON;
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reset_reason_count ++;
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}
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if (SYS_IS_RSTPIN_RST()) {
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reset_reason_cast = RESET_REASON_PIN_RESET;
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reset_reason_count ++;
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}
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if (SYS_IS_WDT_RST()) {
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reset_reason_cast = RESET_REASON_WATCHDOG;
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reset_reason_count ++;
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}
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if (SYS_IS_LVR_RST()) {
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reset_reason_cast = RESET_REASON_PLATFORM;
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reset_reason_count ++;
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}
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if (SYS_IS_BOD_RST()) {
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reset_reason_cast = RESET_REASON_BROWN_OUT;
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reset_reason_count ++;
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}
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/* This MCU doesn't support MKROM and we needn't take care of bootloader/SYSRESETREQ flow. */
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if (SYS_IS_SYSTEM_RST()) {
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reset_reason_cast = RESET_REASON_SOFTWARE;
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reset_reason_count ++;
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}
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if (SYS_IS_CPU_RST()) {
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reset_reason_cast = RESET_REASON_PLATFORM;
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reset_reason_count ++;
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}
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if (reset_reason_count == 0) {
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reset_reason_cast = RESET_REASON_UNKNOWN;
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} else if (reset_reason_count >= 2) {
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reset_reason_cast = RESET_REASON_MULTIPLE;
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}
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return reset_reason_cast;
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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 (SYS->RSTSTS & SYS_RSTSTS_ALLRF_Msk);
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}
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void hal_reset_reason_clear(void)
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{
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SYS_CLEAR_RST_SOURCE(SYS->RSTSTS);
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}
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#endif
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