diff options
Diffstat (limited to 'sys/arch/mvme68k/dev/pccreg.h')
| -rw-r--r-- | sys/arch/mvme68k/dev/pccreg.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/arch/mvme68k/dev/pccreg.h b/sys/arch/mvme68k/dev/pccreg.h index eea8f9126d4..7886617e02f 100644 --- a/sys/arch/mvme68k/dev/pccreg.h +++ b/sys/arch/mvme68k/dev/pccreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: pccreg.h,v 1.7 2004/07/30 22:29:45 miod Exp $ */ +/* $OpenBSD: pccreg.h,v 1.8 2012/11/04 13:33:32 miod Exp $ */ /* * Copyright (c) 1995 Theo de Raadt @@ -124,9 +124,12 @@ extern struct pccreg *sys_pcc; #define PCC_TIMERACK 0x80 /* ack intr */ #define PCC_TIMERCLEAR 0x00 /* reset and clear timer */ #define PCC_TIMERSTART 0x03 /* start timer */ +#define PCC_TIMER_COVF 0x04 /* clear overflow */ +#define PCC_TIMER_OVF_SHIFT 4 -#define pcc_timer_hz2lim(hz) (65536 - (160000/(hz))) -#define pcc_timer_us2lim(us) (65536 - (160000/(1000000/(us)))) +#define PCC_TIMERFREQ 160000 /* 1000000 /6.25 */ +#define pcc_timer_hz2lim(hz) (65536 - (PCC_TIMERFREQ/(hz))) +#define pcc_timer_us2lim(us) (65536 - (PCC_TIMERFREQ/(1000000/(us)))) /* * serial control |