Align the interfaces for the various watchdogs and make the interface

behave as expected.

Also:
- Return an error if WD_PASSIVE is passed in to the ioctl as only
  WD_ACTIVE is implemented at the moment. See sys/watchdog.h for an
  explanation of the difference between WD_ACTIVE and WD_PASSIVE.
- Remove the I_HAVE_TOTALLY_LOST_MY_SENSE_OF_HUMOR define. If you've
  lost your sense of humor, than don't add a define.

Specific changes:

i80321_wdog.c
  Don't roll your own passive watchdog tickle as this would defeat the
  purpose of an active (userland) watchdog tickle.

ichwd.c / ipmi.c:
  WD_ACTIVE means active patting of the watchdog by a userland process,
  not whether the watchdog is active. See sys/watchdog.h.

kern_clock.c:
  (software watchdog) Remove a check for WD_ACTIVE as this does not make
  sense here. This reverts r1.181.

1 files changed, 1 insertions, 0 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 162955b..dd5b34f 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -516,6 +516,7 @@ MLINKS+=wb.4 if_wb.4
 MLINKS+=wi.4 if_wi.4
 MLINKS+=xe.4 if_xe.4
 MLINKS+=xl.4 if_xl.4
+MLINKS+=watchdog.4 SW_WATCHDOG.4
 
 .if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386"
 _acpi_dock.4=	acpi_dock.4