mirror of https://github.com/google/pebble
92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/*
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* Copyright 2024 Google LLC
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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 "reboot_reason.h"
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#include "mcu/interrupts.h"
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#include "os/tick.h"
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#include "system/bootbits.h"
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#include "system/logging.h"
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#define STM32F2_COMPATIBLE
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#define STM32F4_COMPATIBLE
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#define STM32F7_COMPATIBLE
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#include <mcu.h>
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#include <inttypes.h>
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#include "FreeRTOS.h"
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#include "task.h"
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_Static_assert(sizeof(RebootReason) == sizeof(uint32_t[6]), "RebootReason is a funny size");
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void reboot_reason_set(RebootReason *reason) {
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uint32_t *raw = (uint32_t*)reason;
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if (RTC_ReadBackupRegister(REBOOT_REASON_REGISTER_1)) {
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// It's not safe to log if we're called from an ISR or from a FreeRTOS critical section (basepri != 0)
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if (!mcu_state_is_isr() && __get_BASEPRI() == 0
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&& xTaskGetSchedulerState() == taskSCHEDULER_RUNNING) {
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PBL_LOG(LOG_LEVEL_WARNING, "Reboot reason is already set");
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}
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return;
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}
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RTC_WriteBackupRegister(REBOOT_REASON_REGISTER_1, raw[0]);
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RTC_WriteBackupRegister(REBOOT_REASON_REGISTER_2, raw[1]);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_PC, raw[2]);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_LR, raw[3]);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_CALLBACK, raw[4]);
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RTC_WriteBackupRegister(REBOOT_REASON_DROPPED_EVENT, raw[5]);
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}
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void reboot_reason_set_restarted_safely(void) {
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RebootReason reason;
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reboot_reason_get(&reason);
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reason.restarted_safely = true;
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uint32_t* raw = (uint32_t *)&reason;
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RTC_WriteBackupRegister(REBOOT_REASON_REGISTER_1, *raw);
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}
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void reboot_reason_get(RebootReason *reason) {
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uint32_t *raw = (uint32_t *)reason;
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raw[0] = RTC_ReadBackupRegister(REBOOT_REASON_REGISTER_1);
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raw[1] = RTC_ReadBackupRegister(REBOOT_REASON_REGISTER_2);
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raw[2] = RTC_ReadBackupRegister(REBOOT_REASON_STUCK_TASK_PC);
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raw[3] = RTC_ReadBackupRegister(REBOOT_REASON_STUCK_TASK_LR);
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raw[4] = RTC_ReadBackupRegister(REBOOT_REASON_STUCK_TASK_CALLBACK);
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raw[5] = RTC_ReadBackupRegister(REBOOT_REASON_DROPPED_EVENT);
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}
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void reboot_reason_clear(void) {
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RTC_WriteBackupRegister(REBOOT_REASON_REGISTER_1, 0);
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RTC_WriteBackupRegister(REBOOT_REASON_REGISTER_2, 0);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_PC, 0);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_LR, 0);
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RTC_WriteBackupRegister(REBOOT_REASON_STUCK_TASK_CALLBACK, 0);
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RTC_WriteBackupRegister(REBOOT_REASON_DROPPED_EVENT, 0);
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}
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uint32_t reboot_get_slot_of_last_launched_app(void) {
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return RTC_ReadBackupRegister(SLOT_OF_LAST_LAUNCHED_APP);
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}
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void reboot_set_slot_of_last_launched_app(uint32_t app_slot) {
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RTC_WriteBackupRegister(SLOT_OF_LAST_LAUNCHED_APP, app_slot);
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}
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