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/*
* linux/include/asm-cris/fasttimer.h
*
* Fast timers for ETRAX100LX
* This may be useful in other OS than Linux so use 2 space indentation...
* Copyright (C) 2000, 2001, 2002, 2003 Axis Communications AB
*/
#include <linux/config.h>
#include <linux/time.h> /* struct timeval */
#include <linux/timex.h>
/* The timer0 values gives 52us resolution (1/19200) or higher
* but interrupts at HZ
*/
/* We use timer1 to generate interrupts at desired times. */
#ifdef CONFIG_ETRAX_FAST_TIMER
typedef void fast_timer_function_type(unsigned long);
struct fast_timer { /* Close to timer_list */
struct fast_timer *next;
struct fast_timer *prev;
struct timeval tv_set;
struct timeval tv_expires;
unsigned long delay_us;
fast_timer_function_type *function;
unsigned long data;
const char *name;
};
extern struct fast_timer *fast_timer_list;
void start_one_shot_timer(struct fast_timer *t,
fast_timer_function_type *function,
unsigned long data,
unsigned long delay_us,
const char *name);
int del_fast_timer(struct fast_timer * t);
/* return 1 if deleted */
extern inline int fast_timer_pending (const struct fast_timer * t)
{
return (t->next != NULL) || (t->prev != NULL) || (t == fast_timer_list);
}
void schedule_usleep(unsigned long us);
void fast_timer_init(void);
#endif
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