timer.c File Reference

Implementation of the system timer interface. More...

#include "timer/timer.h"
#include "fdt/fdt.h"
#include "utils/kprintf.h"
#include "../drivers/arm_timer.h"
#include <stdint.h>

Include dependency graph for timer.c:

Macros
#define	MAX_TIMERS   10
	Maximum number of timer nodes the kernel will search for in the FDT.

Functions
bool	setup_sys_timer (const void *fdt, uint64_t milliseconds, handler_data_t handler)
	Configure the system timer's tick period and interrupt handler.

Detailed Description

Implementation of the system timer interface.

Dispatches tick configuration and interrupt handler registration to the platform-specific timer driver.

Author

Abhin Parekadan Jose

Date

2026-06-28

Function Documentation

setup_sys_timer()

bool setup_sys_timer	(	const void *	fdt,
		uint64_t	milliseconds,
		handler_data_t	handler
	)

Configure the system timer's tick period and interrupt handler.

Parameters

fdt	Pointer to the Flattened Device Tree (FDT) blob, which may be used to discover timer properties and configuration.
milliseconds	Desired tick period in milliseconds.
handler	Handler function and private data to invoke when the timer interrupt fires.

Returns

true if the timer was configured successfully, false otherwise.