1.\" Written by Denis I. Timofeev, 2002. 2.\" 3.\" Redistribution and use in source and binary forms, with or without 4.\" modification, are permitted provided that the following conditions 5.\" are met: 6.\" 1. Redistributions of source code must retain the above copyright 7.\" notice, this list of conditions and the following disclaimer. 8.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" notice, this list of conditions and the following disclaimer in the 10.\" documentation and/or other materials provided with the distribution. 11.\" 12.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 13.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 16.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 19.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22.\" SUCH DAMAGE. 23.\" 24.\" $FreeBSD$ 25.\" 26.Dd January 8, 2002 27.Dt SBNI 4 i386 28.Os 29.Sh NAME 30.Nm sbni 31.Nd Granch SBNI12 leased line modem driver 32.Sh SYNOPSIS 33.Cd "device sbni" 34.Sh DESCRIPTION 35The 36.Nm 37driver provides support for leased line modems of following models: 38.Pp 39.Bl -bullet -compact 40.It 41SBNI12-02, SBNI12D-02 42.It 43SBNI12-04, SBNI12D-04 44.It 45SBNI12-05, SBNI12D-05, ISA and PCI 46.It 47SBNI12-10, SBNI12D-10, ISA and PCI 48.El 49.Pp 50and a kit for data link over a voice band: 51.Bl -bullet 52.It 53SBNI12-11, SBNI12D-11, ISA and PCI. 54.El 55.Pp 56In addition to the standard port and IRQ specifications, the 57.Nm 58driver also supports a number of 59.Va flags 60which can set baud rate, receive level, and low three bytes of Ethernet 61MAC-address (high three are always 62.Li 00:ff:01 ) , 63because Granch modems are 64presented to the system as Ethernet-like network cards. 65.Pp 66The high byte of the 67.Va flags 68is a bit field, it is used to specify SBNI adapter receive level/baud rate: 69.Bl -tag -width "Bits 0-3:" -offset indent 70.It "Bits 0-3:" 71receive level (0x00..0x0f) 72.It "Bits 4-5:" 73baud rate number: 74.Pp 75.Bl -inset -compact 76.It "00 -" 770 baud rate (2Mb in fast mode/500kb in slow) 78.It "01 -" 791 baud rate (1Mb/250kb) 80.It "10 -" 812 baud rate (500kb/125kb) 82.It "11 -" 833 baud rate (250kb/62.5kb) 84.El 85.It "Bit 6:" 86use fixed receive level 87.Pp 88if bit 6 is set then receive level will be set according 89to bits 0-3 value, otherwise receive level will be 90autodetected 91.It "Bit 7:" 92use fixed baud rate 93.Pp 94if bit 7 is set then baud rate will be set according to 95bits 4-5 value, otherwise baud rate is set to 2Mb 96.El 97.Sh FILES 98The sources for the driver reside in: 99.Pp 100.Bl -tag -width ".Pa /sys/dev/sbni/if_sbni.c" -compact 101.It Pa /sys/dev/sbni/if_sbni.c 102.It Pa /sys/dev/sbni/if_sbnireg.h 103.It Pa /sys/dev/sbni/if_sbnivar.h 104.El 105.Sh SEE ALSO 106.Xr arp 4 , 107.Xr netintro 4 , 108.Xr ifconfig 8 109.Sh HISTORY 110The 111.Nm 112device driver first appeared in 113.Fx 4.6 . 114.Sh AUTHORS 115.An -nosplit 116The 117.Nm 118device driver for 119.Fx 1204.x was written by 121.An Denis I. Timofeev , 122partially based on 123.An David Greenman Ns 's 124.Xr ed 4 125driver. 126Earlier versions (available on 127.Pa ftp.granch.com ) 128were written by 129.An Alexey V. Zverev . 130.Pp 131SBNI12 hardware was designed by 132.An Alexey V. Chirkov . 133