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Atmosphere/exosphere/src/timers.c
2019-04-07 19:00:49 -07:00

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1.4 KiB
C

/*
* Copyright (c) 2018-2019 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include "utils.h"
#include "timers.h"
void wait(uint32_t microseconds) {
uint32_t old_time = TIMERUS_CNTR_1US_0;
while (TIMERUS_CNTR_1US_0 - old_time <= microseconds) {
/* Spin-lock. */
}
}
__attribute__ ((noreturn)) void watchdog_reboot(void) {
unsigned int current_core = get_core_id();
volatile watchdog_timers_t *wdt = GET_WDT(current_core);
wdt->PATTERN = WDT_REBOOT_PATTERN;
wdt->COMMAND = 2; /* Disable Counter. */
GET_WDT_REBOOT_CFG_REG(current_core) = 0xC0000000;
wdt->CONFIG = 0x8015 + current_core; /* Full System Reset after Fourth Counter expires, using TIMER(5+core_id). */
wdt->COMMAND = 1; /* Enable Counter. */
while (true) {
/* Wait for reboot. */
}
}