133 lines
3.4 KiB
Groff
133 lines
3.4 KiB
Groff
.\" Written by Denis I. Timofeev, 2002.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd January 8, 2002
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.Dt SBNI 4 i386
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.Os
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.Sh NAME
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.Nm sbni
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.Nd Granch SBNI12 leased line modem driver
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.Sh SYNOPSIS
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.Cd "device sbni"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for leased line modems of following models:
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.Pp
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.Bl -bullet -compact
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.It
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SBNI12-02, SBNI12D-02
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.It
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SBNI12-04, SBNI12D-04
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.It
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SBNI12-05, SBNI12D-05, ISA and PCI
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.It
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SBNI12-10, SBNI12D-10, ISA and PCI
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.El
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.Pp
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and a kit for data link over a voice band:
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.Bl -bullet
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.It
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SBNI12-11, SBNI12D-11, ISA and PCI.
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.El
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.Pp
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In addition to the standard port and IRQ specifications, the
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.Nm
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driver also supports a number of
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.Va flags
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which can set baud rate, receive level, and low three bytes of Ethernet
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MAC-address (high three are always
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.Li 00:ff:01 ) ,
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because Granch modems are
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presented to the system as Ethernet-like network cards.
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.Pp
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The high byte of the
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.Va flags
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is a bit field, it is used to specify SBNI adapter receive level/baud rate:
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.Bl -tag -width "Bits 0-3:" -offset indent
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.It "Bits 0-3:"
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receive level (0x00..0x0f)
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.It "Bits 4-5:"
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baud rate number:
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.Pp
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.Bl -inset -compact
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.It "00 -"
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0 baud rate (2Mb in fast mode/500kb in slow)
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.It "01 -"
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1 baud rate (1Mb/250kb)
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.It "10 -"
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2 baud rate (500kb/125kb)
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.It "11 -"
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3 baud rate (250kb/62.5kb)
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.El
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.It "Bit 6:"
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use fixed receive level
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.Pp
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if bit 6 is set then receive level will be set according
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to bits 0-3 value, otherwise receive level will be
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autodetected
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.It "Bit 7:"
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use fixed baud rate
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.Pp
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if bit 7 is set then baud rate will be set according to
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bits 4-5 value, otherwise baud rate is set to 2Mb
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.El
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.Sh FILES
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The sources for the driver reside in:
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.Pp
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.Bl -tag -compact
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.It Pa /sys/dev/sbni/if_sbni.c
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.It Pa /sys/dev/sbni/if_sbnireg.h
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.It Pa /sys/dev/sbni/if_sbnivar.h
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.El
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.Sh SEE ALSO
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.Xr arp 4 ,
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.Xr netintro 4 ,
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.Xr ifconfig 8
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.Sh HISTORY
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The
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.Nm
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device driver first appeared in
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.Fx 4.6 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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device driver for
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.Fx
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4.x was written by
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.An Denis I. Timofeev ,
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partially based on
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.An David Greenman Ns 's
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.Xr ed 4
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driver.
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Earlier versions (available on
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.Pa ftp.granch.com )
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were written by
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.An Alexey V. Zverev .
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.Pp
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SBNI12 hardware was designed by
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.An Alexey V. Chirkov .
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