Add support for the Quancom PWDOG1 watchdog timer card.

See http://www.quancom.com/ for detailed information on the card.
ok deraadt, help and ok uwe

3 files changed, 71 insertions, 4 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 3cf83125301..657c0ad6ae1 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.392 2006/11/17 18:58:31 mglocker Exp $
+#	$OpenBSD: Makefile,v 1.393 2006/11/25 17:18:31 mbalmer Exp $
 
 MAN=	aac.4 ac97.4 acphy.4 acpi.4 acx.4 \
 	adc.4 addcom.4 admcts.4 admlc.4 admtemp.4 \
@@ -32,8 +32,8 @@ MAN=	aac.4 ac97.4 acphy.4 acpi.4 acx.4 \
 	pcagpio.4 pcaled.4 pcdisplay.4 pchb.4 pci.4 pcib.4 pcfadc.4 \
 	pcfiic.4 pciide.4 pckbc.4 pckbd.4 pcmcia.4 pcn.4 pcppi.4 pcscp.4 \
 	pf.4 pflog.4 pfsync.4 pgt.4 piixpm.4 pim.4 \
-	pms.4 ppb.4 ppp.4 pppoe.4 pty.4 puc.4 qsphy.4 radio.4 raid.4 ral.4 \
-	random.4 ray.4 rd.4 re.4 rgephy.4 ricohrtc.4 \
+	pms.4 ppb.4 ppp.4 pppoe.4 pty.4 puc.4 pwdog.4 qsphy.4 radio.4 raid.4 \
+	ral.4 random.4 ray.4 rd.4 re.4 rgephy.4 ricohrtc.4 \
 	rl.4 rln.4 rlphy.4 route.4 rt.4 rum.4 \
 	rtfps.4 rtii.4 rtw.4 safe.4 safte.4 san.4 sbus.4 scsi.4 sd.4 \
 	sdmmc.4 sdhc.4 ses.4 \
diff --git a/share/man/man4/pci.4 b/share/man/man4/pci.4
index 35fe777722f..8205b8fa1a8 100644
--- a/share/man/man4/pci.4
+++ b/share/man/man4/pci.4
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: pci.4,v 1.193 2006/11/17 08:41:42 deraadt Exp $
+.\"	$OpenBSD: pci.4,v 1.194 2006/11/25 17:18:31 mbalmer Exp $
 .\"	$NetBSD: pci.4,v 1.29 2000/04/01 00:32:23 tsarna Exp $
 .\"
 .\" Copyright (c) 2000 Theo de Raadt.  All rights reserved.
@@ -341,6 +341,8 @@ AMD Elan SC520 System Controller
 Geode SC1100/SCx200 IAOC watchdog timer device
 .It Xr ichwdt 4
 Intel 6300ESB ICH watchdog timer device
+.It Xr pwdog 4
+Quancom PWDOG1 watchdog timer device
 .It Xr viaenv 4
 VIA VT82C686A/VT8231 hardware monitor
 .It Xr wdt 4
diff --git a/share/man/man4/pwdog.4 b/share/man/man4/pwdog.4
new file mode 100644
index 00000000000..05763b5c44c
--- /dev/null
+++ b/share/man/man4/pwdog.4
@@ -0,0 +1,65 @@
+.\"	$OpenBSD: pwdog.4,v 1.1 2006/11/25 17:18:31 mbalmer Exp $
+.\"
+.\" Copyright (c) 2006 Marc Balmer <mbalmer@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd November 25, 2006
+.Dt PWDOG 4
+.Os
+.Sh NAME
+.Nm pwdog
+.Nd Quancom PWDOG1 PCI watchdog timer device
+.Sh SYNOPSIS
+.Cd "pwdog0 at pci?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the Quancom PWDOG1 boards.
+.Pp
+If the kernel crashes, the watchdog timer is not reset and the system will
+reboot (assuming a proper connection is made between the PWDOG1 and
+the motherboard).
+Alternatively, the watchdog can be reinitialized via a userland process which
+ensures that process scheduling, not just kernel timeout processing, is still
+taking place.
+See
+.Xr watchdog 4
+and
+.Xr watchdogd 8
+for more information.
+.Pp
+The timeout period of the PWDOG1 card is set using DIP-switches and can
+not be changed by software.
+.Sh SEE ALSO
+.Xr intro 4 ,
+.Xr pci 4 ,
+.Xr watchdog 4 ,
+.Xr watchdogd 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 4.1 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Marc Balmer Aq mbalmer@openbsd.org .
+.Sh BUGS
+It's unwise to combine
+.Nm
+with
+.Xr ddb 4 ,
+since the latter may prevent the former from resetting the watchdog timeout
+before it expires.