| Yoshinori Sato | e0b0f9e | 2008-10-15 22:01:16 -0700 | [diff] [blame] | 1 | #ifndef __H8300_TIMER_H |
| 2 | #define __H8300_TIMER_H |
| 3 | |
| 4 | void h8300_timer_tick(void); |
| 5 | void h8300_timer_setup(void); |
| 6 | void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day, |
| 7 | unsigned int *hour, unsigned int *min, unsigned int *sec); |
| 8 | |
| 9 | #define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */ |
| 10 | |
| 11 | #define calc_param(cnt, div, rate, limit) \ |
| 12 | do { \ |
| 13 | cnt = TIMER_FREQ / HZ; \ |
| 14 | for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \ |
| 15 | if (rate[div] == 0) \ |
| 16 | continue; \ |
| 17 | if ((cnt / rate[div]) > limit) \ |
| 18 | break; \ |
| 19 | } \ |
| 20 | if (div == ARRAY_SIZE(divide_rate)) \ |
| 21 | panic("Timer counter overflow"); \ |
| 22 | cnt /= divide_rate[div]; \ |
| 23 | } while(0) |
| 24 | |
| 25 | #endif |