freebsd-dev/sys/isa
Bruce Evans a6796db6ce Ensure that the i8254 timecounter doesn't go backards. It sometimes
went backwards when interrupts were masked for more than one i8254
interrupt period.  It sometimes went backwards when the i8254 counter
was reprogrammed.  Neither of these should happen in normal operation.

Update the i8254 timecounter support variables atomically.  Calling
timecounter functions from fast interrupt handlers may actually work
in all cases now.
1998-09-20 03:47:54 +00:00
..
ic Enable the FIFO on enhanced floppy controllers. This reduces the 1997-09-17 20:16:17 +00:00
atrtc.c Ensure that the i8254 timecounter doesn't go backards. It sometimes 1998-09-20 03:47:54 +00:00
bt_isa.c Mylex/Buslogic MultiMaster SCSI-Host Adapter Driver for CAM. 1998-09-15 07:32:57 +00:00
fd.c Nuke uninitialized varible fd from retrier(). Change the devstat code 1998-09-15 22:07:24 +00:00
fdc.h Fixed error handling: 1998-07-29 13:00:42 +00:00
fdreg.h Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 1997-02-22 09:48:43 +00:00
isareg.h Support files for ISA bus. 1998-08-06 08:49:09 +00:00
isavar.h Support files for ISA bus. 1998-08-06 08:49:09 +00:00
joy.c This commit fixes various 64bit portability problems required for 1998-06-07 17:13:14 +00:00
kbdio.c Port syscons to the alpha. The driver itself has moved to sys/isa as it will 1998-08-06 09:15:54 +00:00
kbdio.h Port syscons to the alpha. The driver itself has moved to sys/isa as it will 1998-08-06 09:15:54 +00:00
kbdtables.h Port syscons to the alpha. The driver itself has moved to sys/isa as it will 1998-08-06 09:15:54 +00:00
ppc.c invalid printf call fixed -> compile time warning removed 1998-09-13 20:57:06 +00:00
ppcreg.h ppbus enhanced to support ZIP+ : microseq improved 1998-09-13 18:26:44 +00:00
rtc.h Improve a couple of comment. 1998-07-11 08:01:18 +00:00
scvidctl.c Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
sio.c Support PnP compatibility IDs. This allow e.g. the ed driver to pick 1998-09-13 22:15:44 +00:00
sioreg.h Bring back CONSPEED as a last-ditch default if you can't change the speed 1997-06-04 16:25:15 +00:00
syscons.c Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
syscons.h Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
timerreg.h Port syscons to the alpha. The driver itself has moved to sys/isa as it will 1998-08-06 09:15:54 +00:00
videoio.c Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00
videoio.h Merge with the latest i386 syscons. 1998-09-17 09:38:36 +00:00