165 lines
4.6 KiB
Groff
165 lines
4.6 KiB
Groff
.\"
|
|
.\" Copyright (c) 1996 John Hay. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by John Hay.
|
|
.\" 4. Neither the name of the author nor the names of any co-contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY John Hay ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL John Hay BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd March 18, 2005
|
|
.Dt SR 4 i386
|
|
.Os
|
|
.Sh NAME
|
|
.Nm sr
|
|
.Nd synchronous RISCom/N2 / WANic 400/405 device driver
|
|
.Sh SYNOPSIS
|
|
.Cd "device sr"
|
|
.Pp
|
|
For ISA cards, in
|
|
.Pa /boot/device.hints :
|
|
.Cd hint.sr.0.at="isa"
|
|
.Cd hint.sr.0.port="0x300"
|
|
.Cd hint.sr.0.irq="10"
|
|
.Cd hint.sr.0.maddr="0xd0000"
|
|
.Cd hint.sr.0.flags="0x0"
|
|
.Pp
|
|
.Cd "device sppp"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver supports the RISCom/N2 ISA cards, N2pci and the WANic 400/405 PCI
|
|
cards that are based on the HD64570 chip.
|
|
.Pp
|
|
If you have ISA cards, you need to specify the resources for them in
|
|
.Pa /boot/device.hints .
|
|
If you have the second ISA card, add
|
|
.Pp
|
|
.Dl hint.sr.1.at="isa"
|
|
.Dl hint.sr.1.port="0x310"
|
|
.Dl hint.sr.1.irq="11"
|
|
.Dl hint.sr.1.maddr="0xd0000"
|
|
.Dl hint.sr.1.flags="0x0"
|
|
.Pp
|
|
The standard
|
|
.Fx
|
|
sppp code is used for the link level layer.
|
|
The
|
|
default protocol used is PPP.
|
|
The Cisco HDLC protocol can be used by
|
|
adding
|
|
.Em link2
|
|
to
|
|
.Xr ifconfig 8 .
|
|
.Pp
|
|
Alternately, the driver can be compiled to support
|
|
.Xr netgraph 4
|
|
(see below).
|
|
.Pp
|
|
The
|
|
.Em flags
|
|
specification in
|
|
.Pa /boot/device.hints
|
|
is optional.
|
|
If it is not specified, the driver will
|
|
assume the following:
|
|
.Pp
|
|
.Bl -hang -offset indent
|
|
.It "The card has 2 ports."
|
|
.It "The clock for the serial ports is external and the transmitter uses"
|
|
the same clock as the receiver.
|
|
.El
|
|
.Pp
|
|
The
|
|
.Em flags
|
|
are a bit field and can be used to force a different
|
|
behaviour than the default.
|
|
.Pp
|
|
.Bl -hang -offset indent
|
|
.It Em 0x01
|
|
The card has only one port.
|
|
.It Em 0x10
|
|
Use separate external clocks for transmit and receive on port 0.
|
|
.It Em 0x40
|
|
Use separate external clocks for transmit and receive on port 1.
|
|
.El
|
|
.Pp
|
|
The card only supports IRQ 3, 4, 5, 7, 10, 11, 12 and 15.
|
|
.Pp
|
|
The iomem area is a 16Kb block and must start at a 16Kb boundary.
|
|
.Sh HARDWARE
|
|
The
|
|
.Nm
|
|
driver supports the following hardware:
|
|
.Pp
|
|
.Bl -bullet -compact
|
|
.It
|
|
SDL Communications RISCom/N2 ISA
|
|
.It
|
|
SDL Communications N2pci
|
|
.It
|
|
SDL Communications WANic 400/405 PCI
|
|
.El
|
|
.Sh NETGRAPH SUPPORT
|
|
If the kernel is compiled with
|
|
.Dv "options NETGRAPH"
|
|
then the sppp and Cisco HDLC modes are disabled (and the sppp driver
|
|
is unneeded), and this driver functions as a
|
|
.Xr netgraph 4
|
|
node with a single hook named
|
|
.Dv rawdata .
|
|
Connecting to this hook enables the transmission of raw HDLC frames.
|
|
The node will have the same name as the device with ``sync_''
|
|
prepended, e.g.,
|
|
.Dv sync_sr0 .
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It "sr%d: Warning illegal interrupt %d."
|
|
The card cannot use the specified interrupt.
|
|
Choose a different one.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr ar 4 ,
|
|
.Xr cx 4 ,
|
|
.Xr netgraph 4 ,
|
|
.Xr netintro 4 ,
|
|
.Xr ifconfig 8
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm
|
|
device driver was written by
|
|
.An John Hay Aq jhay@FreeBSD.org .
|
|
.Pp
|
|
Netgraph support was added by
|
|
.An Julian Elischer Aq julian@FreeBSD.org .
|
|
.Sh BUGS
|
|
At the moment only the X.21 interface is tested.
|
|
The others
|
|
may need tweaks to the clock selection code.
|
|
.Pp
|
|
The code can probably stand some optimizing.
|