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linux/include/asm-h8300/timer.h
Yoshinori Sato e0b0f9e4ea h8300: update timer handler - new files
New timer handler files.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:29 -07:00

26 lines
703 B
C

#ifndef __H8300_TIMER_H
#define __H8300_TIMER_H
void h8300_timer_tick(void);
void h8300_timer_setup(void);
void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day,
unsigned int *hour, unsigned int *min, unsigned int *sec);
#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */
#define calc_param(cnt, div, rate, limit) \
do { \
cnt = TIMER_FREQ / HZ; \
for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \
if (rate[div] == 0) \
continue; \
if ((cnt / rate[div]) > limit) \
break; \
} \
if (div == ARRAY_SIZE(divide_rate)) \
panic("Timer counter overflow"); \
cnt /= divide_rate[div]; \
} while(0)
#endif