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47 lines
1 KiB
C
47 lines
1 KiB
C
#ifndef FUSEE_TIMERS_H
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#define FUSEE_TIMERS_H
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#include "utils.h"
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#define TIMERS_BASE 0x60005000
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#define MAKE_TIMERS_REG(n) MAKE_REG32(TIMERS_BASE + n)
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#define TIMERUS_CNTR_1US_0 MAKE_REG32(TIMERS_BASE + 0x10)
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typedef struct {
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uint32_t CONFIG;
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uint32_t STATUS;
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uint32_t COMMAND;
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uint32_t PATTERN;
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} watchdog_timers_t;
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#define GET_WDT(n) ((volatile watchdog_timers_t *)(TIMERS_BASE + 0x100 + 0x20 * n))
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#define WDT_REBOOT_PATTERN 0xC45A
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#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) {
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return TIMERUS_CNTR_1US_0;
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}
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/**
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* Returns the number of microseconds that have passed since a given get_time().
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*/
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static inline uint32_t get_time_since(uint32_t base) {
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return get_time() - base;
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}
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/**
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* Delays for a given number of microseconds.
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*/
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static inline void udelay(unsigned usecs)
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{
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uint32_t start = get_time();
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while (get_time() - start < usecs) ;
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}
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__attribute__ ((noreturn)) void watchdog_reboot(void);
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#endif
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