timer.c File Reference

#include <stdint.h>
#include <rtc.h>
#include <intc.h>
#include <ports/avr32/timer.h>
#include "lwip/init.h"
#include "lwip/sys.h"

Data Structures
struct	timeout_t
struct	timer_t

Macros
#define	ARRAY_SIZE(a)   sizeof(a) / sizeof(a[0])

Functions
static void	irq_handler (void)
U32	sys_now (void)
	Returns the current time in milliseconds, may be the same as sys_jiffies or at least based on it. More...
void	timer_cancel_timeout (U32 id)
void	timer_delay (U32 ms)
U32	timer_get_ms (void)
void	timer_init (void(*tick_isr)(void *ctx), void *ctx)
int	timer_interval_passed (U32 old, U32 new, U32 diff)
U32	timer_mod (U32 id, U32 ms, U8 type, void(*cb)(void *ctx), void *ctx)
void	timer_poll (void)
	Called from application main loop to invoke any scheduled timeout cbs. More...
static U32	timer_sched_timeout (U32 ms, U8 type)
U32	timer_sched_timeout_cb (U32 ms, U8 type, void(*cb)(void *ctx), void *ctx)

Variables
static struct timer_t	TIMER

#define ARRAY_SIZE

(

a

)

sizeof(a) / sizeof(a[0])

Referenced by console_add_cmd(), console_schedule_cmd(), timer_init(), timer_poll(), and timer_sched_timeout().

static void irq_handler ( void  )

static

References timer_t::ctx, timer_t::tick, timer_t::tick_isr, and TIMER.

Referenced by timer_init().

U32 sys_now

(

void

)

Returns the current time in milliseconds, may be the same as sys_jiffies or at least based on it.

Returns the current time in milliseconds.

References timer_get_ms().

void timer_cancel_timeout

(

U32

id

)

References timeout_t::expired, timer_t::timeout, and TIMER.

Referenced by timer_mod(), and ttcp_destroy().

void timer_delay

(

U32

ms

)

References timer_t::MS_PER_TICK, timer_t::tick, and TIMER.

U32 timer_get_ms

(

void

)

References timer_t::MS_PER_TICK, timer_t::tick, and TIMER.

Referenced by cmd_ping(), init_ping_info(), main(), ping_recv(), ping_send(), poll(), print_stats(), sys_now(), tcp_accept_cb(), tcp_connect_cb(), ttcp_print_stats(), udp_recv_cb(), and udp_send_data().

void timer_init	(	void(*)(void *ctx)	tick_isr,
		void *	ctx
	)

References ARRAY_SIZE, Assert, ctx, timer_t::ctx, timeout_t::expired, INTC_register_interrupt(), irq_handler(), timer_t::MS_PER_TICK, rtc_enable(), rtc_enable_interrupt(), rtc_init(), RTC_OSC_RC, rtc_set_top_value(), timer_t::tick_isr, timer_t::timeout, and TIMER.

Referenced by main().

int timer_interval_passed	(	U32	old,
		U32	new,
		U32	diff
	)

U32 timer_mod	(	U32	id,
		U32	ms,
		U8	type,
		void(*)(void *ctx)	cb,
		void *	ctx
	)

References cb, timeout_t::expired, INVALID_TIMER_ID, timer_t::timeout, TIMER, timer_cancel_timeout(), and timer_sched_timeout_cb().

void timer_poll

(

void

)

Called from application main loop to invoke any scheduled timeout cbs.

This function might be called as often as possible rather than at each tick to support the timeout value '0', e.g a timeout within less than one tick.

References ARRAY_SIZE, timeout_t::cb, timeout_t::ctx, timeout_t::expire_at_tick, timeout_t::expired, i, timeout_t::tick, timer_t::tick, timer_t::timeout, TIMEOUT_PERIODIC, TIMER, and timeout_t::type.

Referenced by main(), and poll().

static U32 timer_sched_timeout ( U32  ms, U8  type  )

static

References ARRAY_SIZE, Assert, timeout_t::expire_at_tick, timeout_t::expired, timer_t::MS_PER_TICK, timeout_t::tick, timer_t::tick, timer_t::timeout, TIMEOUT_ONESHOT, TIMEOUT_PERIODIC, TIMER, and timeout_t::type.

Referenced by timer_sched_timeout_cb().

U32 timer_sched_timeout_cb	(	U32	ms,
		U8	type,
		void(*)(void *ctx)	cb,
		void *	ctx
	)

References Assert, cb, timeout_t::cb, ctx, timeout_t::ctx, timer_t::timeout, TIMER, and timer_sched_timeout().

Referenced by start_ip_stack(), tcp_send_data(), tcp_timeout_cb(), timer_mod(), and udp_send_data().

struct timer_t TIMER

static

Initial value:

= {
        .tick = 0,



        .MS_PER_TICK = TIMER_HZ,

        .timeout = { { 0 } },
}

Referenced by irq_handler(), timer_cancel_timeout(), timer_delay(), timer_get_ms(), timer_init(), timer_mod(), timer_poll(), timer_sched_timeout(), and timer_sched_timeout_cb().