mirror of https://github.com/Desuuuu/klipper.git
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
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#ifndef __SCHED_H
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#define __SCHED_H
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#include <stdint.h>
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#include "board/pgm.h" // PSTR
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#include "compiler.h" // __section
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// Declare an init function (called at firmware startup)
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#define DECL_INIT(FUNC) _DECL_CALLBACK(initfuncs, FUNC)
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// Declare a task function (called periodically during normal runtime)
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#define DECL_TASK(FUNC) _DECL_CALLBACK(taskfuncs, FUNC)
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// Declare a shutdown function (called on an emergency stop)
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#define DECL_SHUTDOWN(FUNC) _DECL_CALLBACK(shutdownfuncs, FUNC)
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// Timer structure for scheduling timed events (see sched_timer() )
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struct timer {
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struct timer *next;
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uint8_t (*func)(struct timer*);
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uint32_t waketime;
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};
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enum { SF_DONE=0, SF_RESCHEDULE=1 };
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// sched.c
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uint8_t sched_check_periodic(uint16_t time, uint16_t *pnext);
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uint32_t sched_from_ms(uint32_t ms);
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uint32_t sched_read_time(void);
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uint8_t sched_is_before(uint32_t time1, uint32_t time2);
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void sched_timer(struct timer*);
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void sched_del_timer(struct timer *del);
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void sched_timer_kick(void);
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uint8_t sched_is_shutdown(void);
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uint16_t sched_shutdown_reason(void);
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void sched_clear_shutdown(void);
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void sched_try_shutdown(uint16_t reason);
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void sched_shutdown(uint16_t reason) __noreturn;
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void sched_main(void);
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// Compiler glue for DECL_X macros above.
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struct callback_handler {
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void (*func)(void);
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};
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#define _DECL_CALLBACK(NAME, FUNC) \
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const struct callback_handler _DECL_ ## NAME ## _ ## FUNC __visible \
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__section(".progmem.data." __stringify(NAME) ) = { .func = FUNC }
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#define foreachdecl(ITER, NAME) \
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extern typeof(*ITER) NAME ## _start[], NAME ## _end[]; \
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for (ITER = NAME ## _start ; ITER < NAME ## _end ; ITER ++)
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#endif // sched.h
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