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| author | bde <bde@FreeBSD.org> | 1996-03-31 04:05:36 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1996-03-31 04:05:36 +0000 |
| commit | b26bbde39abed59833a579d4dc9ef2c51c4ae0aa (patch) | |
| tree | 593fa91693fefd4a4c0ff91c25c705e7554e493d /sys/isa | |
| parent | 20ef589c863a5318deea9fcbefdfa88744a4ea4e (diff) | |
| download | FreeBSD-src-b26bbde39abed59833a579d4dc9ef2c51c4ae0aa.zip FreeBSD-src-b26bbde39abed59833a579d4dc9ef2c51c4ae0aa.tar.gz | |
Moved rtcin() to clock.c.
Always delay using one inb(0x84) after each i/o in rtcin() - don't
do this conditional on the bogus option DUMMY_NOPS not being defined.
If you want an optionally slightly faster rtcin() again, then inline
it and use a better named option or sysctl variable. It only needs
to be fast in rtcintr().
Diffstat (limited to 'sys/isa')
| -rw-r--r-- | sys/isa/atrtc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/isa/atrtc.c b/sys/isa/atrtc.c index d9ae373..b4a01ce 100644 --- a/sys/isa/atrtc.c +++ b/sys/isa/atrtc.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 - * $Id: clock.c,v 1.51 1996/01/30 18:56:47 wollman Exp $ + * $Id: clock.c,v 1.53 1996/03/23 21:36:03 nate Exp $ */ /* @@ -400,6 +400,19 @@ sysbeep(int pitch, int period) * RTC support routines */ +int +rtcin(reg) + int reg; +{ + u_char val; + + outb(IO_RTC, reg); + inb(0x84); + val = inb(IO_RTC + 1); + inb(0x84); + return (val); +} + static __inline void writertc(u_char reg, u_char val) { |
