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wiz 2009-05-18 12:29:56 +00:00
parent 69f3168bc0
commit 96ce1282b1
2 changed files with 41 additions and 34 deletions
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12
share/man/man4/ichlpcib.4
View File

@ -1,4 +1,4 @@
.\" $NetBSD: ichlpcib.4,v 1.6 2008/04/30 13:10:54 martin Exp $
.\" $NetBSD: ichlpcib.4,v 1.7 2009/05/18 12:29:56 wiz Exp $
.\"
.\" Copyright (c) 2004 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -41,7 +41,8 @@
The
.Nm
driver supports the Intel ICH LPC Interface Bridges on compatible
chipsets. Supported functions include:
chipsets.
Supported functions include:
.Bl -bullet
.It
Watchdog timer.
@ -49,8 +50,8 @@ The watchdog timer may be configured for a 2 seconds (on ICH6 or newer)
and 4 seconds (on ICH5 or older) min period and for a 39 seconds
(on ICH5 or older) or 613 seconds max period (on ICH6 or newer).
.It
Power Management timer. A 24-bit timer available to be used by the
timecounters framework.
Power Management timer.
A 24-bit timer available to be used by the timecounters framework.
.It
SpeedStep.
In some systems the SpeedStep function is also available, and can be
@ -58,7 +59,8 @@ used to switch between high and low frequency (to reduce power consumption)
via the
.Em machdep.speedstep_state
.Xr sysctl 8
node. A value of 0 will use the low frequency (low power) and a 1 will
node.
A value of 0 will use the low frequency (low power) and a 1 will
enable the high frequency (full power).
.El
.Sh SEE ALSO

63
share/man/man4/pcweasel.4
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@ -1,4 +1,4 @@
.\" $NetBSD: pcweasel.4,v 1.4 2007/11/23 11:40:50 xtraeme Exp $
.\" $NetBSD: pcweasel.4,v 1.5 2009/05/18 12:31:01 wiz Exp $
.\"
.\" Copyright (c) 2000 Zembu Labs, Inc.
.\" All rights reserved.
@ -41,49 +41,54 @@
.Cd "pseudo-device pcweasel"
.Cd "weasel* at pci? dev ? function ?"
.Pp
Note that the appropriate display device must also be enabled. See
Note that the appropriate display device must also be enabled.
See
.Xr pcdisplay 4
for more information.
.Sh DESCRIPTION
The PC-Weasel is a serial console board for use primarily on
Intel-based PC-class systems. It addresses a problem that
nearly everyone who has deployed a PC-class server has experienced:
the total lack of remote management capability on PC-class hardware.
Intel-based PC-class systems.
It addresses a problem that nearly everyone who has deployed a
PC-class server has experienced: the total lack of remote management
capability on PC-class hardware.
.Pp
In addition to serial console support, the PC-Weasel provides the
ability to remotely reset the system (by means of a hardware reset
signal), and provides a watchdog timer function.
.Pp
The PC-Weasel works by emulating the original IBM Monochrome
Display Adapter (MDA). Writes to the display's character
cells are translated into ANSI terminal sequences which are
then sent out the PC-Weasel's serial port. Incoming characters
are translated into PC keyboard scan codes and then fed (by means
of a cable) into the system's keyboard controller. The system
believes it is using a display console. This is particularly
important in the event that one needs access to BIOS configuration
menus.
Display Adapter (MDA).
Writes to the display's character cells are translated into ANSI
terminal sequences which are then sent out the PC-Weasel's serial
port.
Incoming characters are translated into PC keyboard scan codes and
then fed (by means of a cable) into the system's keyboard controller.
The system believes it is using a display console.
This is particularly important in the event that one needs access
to BIOS configuration menus.
.Pp
The PC-Weasel also includes a ST16550 serial port, which may
be configured as any one of the system's serial ports. Typical
usage is to configure the port as
be configured as any one of the system's serial ports.
Typical usage is to configure the port as
.Em com0
at ISA I/O address 0x3f8. When the PC-Weasel detects activity
on the ST16550, the serial port is automatically connected to
the ST16550 so that the serial port may be used as normal. When
the PC-Weasel detects activity on the internal UART used for MDA
emulation, the serial port is automatically reconnected to the
emulation UART. This allows the boot program and kernel to be
configured to use the serial port directly (which is more efficient
than using the MDA emulation mode), yet allows the MDA emulation
to be reestablished as soon as the kernel loses control of the
system.
at ISA I/O address 0x3f8.
When the PC-Weasel detects activity on the ST16550, the serial port
is automatically connected to the ST16550 so that the serial port
may be used as normal.
When the PC-Weasel detects activity on the internal UART used for
MDA emulation, the serial port is automatically reconnected to the
emulation UART.
This allows the boot program and kernel to be configured to use
the serial port directly (which is more efficient than using the
MDA emulation mode), yet allows the MDA emulation to be reestablished
as soon as the kernel loses control of the system.
.Pp
The
.Nm
driver provides support for the additional features present on
the PC-Weasel. At the moment, this includes support for the
watchdog timer function. Use of the
the PC-Weasel.
At the moment, this includes support for the watchdog timer function.
Use of the
.Nm
driver is not required in order for the system to function with
a PC-Weasel installed so long as only the MDA emulation and
@ -98,8 +103,8 @@ driver first appeared in
.Nx 1.5.1 .
.Sh AUTHORS
The PC-Weasel was invented by Herb Peyerl and Jonathan Levine
at Canada Connect Corporation. It is now produced by Middle
Digital, Inc., http://www.realweasel.com/
at Canada Connect Corporation.
It is now produced by Middle Digital, Inc., http://www.realweasel.com/
.Pp
The
.Nm