Atmosphere/exosphere/src/timers.h

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/*
* Copyright (c) 2018 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/>.
*/
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#ifndef EXOSPHERE_TIMERS_H
#define EXOSPHERE_TIMERS_H
#include <stdint.h>
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#include "memory_map.h"
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/* Exosphere driver for the Tegra X1 Timers. */
static inline uintptr_t get_timers_base(void) {
return MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_TMRs_WDTs);
}
#define TIMERS_BASE (get_timers_base())
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#define MAKE_TIMERS_REG(n) MAKE_REG32(TIMERS_BASE + n)
#define TIMERUS_CNTR_1US_0 MAKE_TIMERS_REG(0x10)
#define SHARED_INTR_STATUS_0 MAKE_TIMERS_REG(0x1A0)
#define SHARED_TIMER_SECURE_CFG_0 MAKE_TIMERS_REG(0x1A4)
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typedef struct {
uint32_t CONFIG;
uint32_t STATUS;
uint32_t COMMAND;
uint32_t PATTERN;
} watchdog_timers_t;
#define GET_WDT(n) ((volatile watchdog_timers_t *)(TIMERS_BASE + 0x100 + 0x20 * n))
#define WDT_REBOOT_PATTERN 0xC45A
#define GET_WDT_REBOOT_CFG_REG(n) MAKE_REG32(TIMERS_BASE + 0x60 + 0x8 * n)
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void wait(uint32_t microseconds);
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static inline uint32_t get_time(void) {
return TIMERUS_CNTR_1US_0;
}
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__attribute__ ((noreturn)) void watchdog_reboot(void);
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#endif