/* mbed Microcontroller Library * Copyright(C) Toshiba Electronic Device Solutions Corporation 2022 * * 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. */ #include "reset_reason_api.h" #ifdef DEVICE_RESET_REASON #include "TMPM4GR.h" #include <stdbool.h> static uint8_t set_bit_count(uint32_t reg); typedef enum { POWER_ON_BIT_POS = 1 << 0, PIN_RESET_BIT_POS = 1 << 3, LOW_POWER_BIT_POS = 1 << 4, BROWN_OUT_BIT_POS = 1 << 5, } reason_flag0; typedef enum { SOFTWARE_BIT_POS = 1 << 0, LOCK_BIT_POS = 1 << 1, WATCHDOG_BIT_POS = 1 << 2, PLATFORM_BIT_POS = 1 << 3, } reason_flag1; void hal_reset_reason_clear(void) { TSB_RLM->RSTFLG0 = 0; TSB_RLM->RSTFLG1 = 0; } uint32_t hal_reset_reason_get_raw(void) { uint32_t ret = 0; ret = (((TSB_RLM->RSTFLG1 & 0xFF) << 8) | (TSB_RLM->RSTFLG0 & 0xFF)); return ret; } reset_reason_t hal_reset_reason_get(void) { reset_reason_t ret; uint8_t NoOfSetBitCountReg1 = set_bit_count(TSB_RLM->RSTFLG0); uint8_t NoOfSetBitCountReg2 = set_bit_count(TSB_RLM->RSTFLG1); if (NoOfSetBitCountReg1 != 0x00) { if (NoOfSetBitCountReg1 > 0x01) { ret = RESET_REASON_MULTIPLE; } else { if (TSB_RLM->RSTFLG0 & POWER_ON_BIT_POS) { ret = RESET_REASON_POWER_ON; } else if (TSB_RLM->RSTFLG0 & PIN_RESET_BIT_POS) { ret = RESET_REASON_PIN_RESET; } else if (TSB_RLM->RSTFLG0 & LOW_POWER_BIT_POS) { ret = RESET_REASON_WAKE_LOW_POWER; } else if (TSB_RLM->RSTFLG0 & BROWN_OUT_BIT_POS) { ret = RESET_REASON_BROWN_OUT; } else { ret = RESET_REASON_UNKNOWN; } } } else if (NoOfSetBitCountReg2 != 0x00) { if (NoOfSetBitCountReg2 > 0x01) { ret = RESET_REASON_MULTIPLE; } else { if (TSB_RLM->RSTFLG1 & SOFTWARE_BIT_POS) { ret = RESET_REASON_SOFTWARE; } else if (TSB_RLM->RSTFLG1 & LOCK_BIT_POS) { ret = RESET_REASON_LOCKUP; } else if (TSB_RLM->RSTFLG1 & WATCHDOG_BIT_POS) { ret = RESET_REASON_WATCHDOG; } else if (TSB_RLM->RSTFLG1 & PLATFORM_BIT_POS) { ret = RESET_REASON_PLATFORM; } else { ret = RESET_REASON_UNKNOWN; } } } else { ret = RESET_REASON_UNKNOWN; } return ret; } void hal_reset_reason_get_capabilities(reset_reason_capabilities_t *cap) { cap->reasons = 1 << RESET_REASON_UNKNOWN; cap->reasons |= 1 << RESET_REASON_POWER_ON; cap->reasons |= 1 << RESET_REASON_PIN_RESET; cap->reasons |= 1 << RESET_REASON_WAKE_LOW_POWER; cap->reasons |= 1 << RESET_REASON_BROWN_OUT; cap->reasons |= 1 << RESET_REASON_SOFTWARE; cap->reasons |= 1 << RESET_REASON_LOCKUP; cap->reasons |= 1 << RESET_REASON_WATCHDOG; cap->reasons |= 1 << RESET_REASON_PLATFORM; cap->reasons |= 1 << RESET_REASON_MULTIPLE; } static uint8_t set_bit_count(uint32_t reg) { uint8_t count = 0; uint8_t index = 0; for (index = 0; index < (sizeof(uint32_t) * 8); index++) { if (reg & (1 << index)) { count++; if (count > 0x01) { break; } } } return count; } #endif // DEVICE_RESET_REASON