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| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2008-10-15 22:01:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 11:21:29 -0700 |
| commit | e0b0f9e4ead2468f84c26332ec42b118e76af572 (patch) | |
| tree | cce28e74411d81eca6aeb6a3f2530766bf02e97a /include/asm-h8300/timer.h | |
| parent | 4b6aba51fb64071e22dad7b971c73af61916a48b (diff) | |
| download | linux-e0b0f9e4ead2468f84c26332ec42b118e76af572.tar.gz linux-e0b0f9e4ead2468f84c26332ec42b118e76af572.tar.bz2 linux-e0b0f9e4ead2468f84c26332ec42b118e76af572.zip | |
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>
Diffstat (limited to 'include/asm-h8300/timer.h')
| -rw-r--r-- | include/asm-h8300/timer.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/asm-h8300/timer.h b/include/asm-h8300/timer.h new file mode 100644 index 000000000000..def80464d38f --- /dev/null +++ b/include/asm-h8300/timer.h @@ -0,0 +1,25 @@ +#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 |