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.Dd January 8, 2002 25.Dt SBNI 4 i386 26.Os 27.Sh NAME 28.Nm sbni 29.Nd Granch SBNI12 leased line modem driver 30.Sh SYNOPSIS 31.Cd "device sbni" 32.Sh DESCRIPTION 33The 34.Nm 35driver provides support for leased line modems of following models: 36.Pp 37.Bl -bullet -compact 38.It 39SBNI12-02, SBNI12D-02 40.It 41SBNI12-04, SBNI12D-04 42.It 43SBNI12-05, SBNI12D-05, ISA and PCI 44.It 45SBNI12-10, SBNI12D-10, ISA and PCI 46.El 47.Pp 48and a kit for data link over a voice band: 49.Bl -bullet 50.It 51SBNI12-11, SBNI12D-11, ISA and PCI. 52.El 53.Pp 54In addition to the standard port and IRQ specifications, the 55.Nm 56driver also supports a number of 57.Va flags 58which can set baud rate, receive level, and low three bytes of Ethernet 59MAC-address (high three are always 60.Li 00:ff:01 ) , 61because Granch modems are 62presented to the system as Ethernet-like network cards. 63.Pp 64The high byte of the 65.Va flags 66is a bit field, it is used to specify SBNI adapter receive level/baud rate: 67.Bl -tag -width "Bits 0-3:" -offset indent 68.It "Bits 0-3:" 69receive level (0x00..0x0f) 70.It "Bits 4-5:" 71baud rate number: 72.Pp 73.Bl -inset -compact 74.It "00 -" 750 baud rate (2Mb in fast mode/500kb in slow) 76.It "01 -" 771 baud rate (1Mb/250kb) 78.It "10 -" 792 baud rate (500kb/125kb) 80.It "11 -" 813 baud rate (250kb/62.5kb) 82.El 83.It "Bit 6:" 84use fixed receive level 85.Pp 86if bit 6 is set then receive level will be set according 87to bits 0-3 value, otherwise receive level will be 88autodetected 89.It "Bit 7:" 90use fixed baud rate 91.Pp 92if bit 7 is set then baud rate will be set according to 93bits 4-5 value, otherwise baud rate is set to 2Mb 94.El 95.Sh FILES 96The sources for the driver reside in: 97.Pp 98.Bl -tag -width ".Pa /sys/dev/sbni/if_sbni.c" -compact 99.It Pa /sys/dev/sbni/if_sbni.c 100.It Pa /sys/dev/sbni/if_sbnireg.h 101.It Pa /sys/dev/sbni/if_sbnivar.h 102.El 103.Sh SEE ALSO 104.Xr arp 4 , 105.Xr netintro 4 , 106.Xr ifconfig 8 107.Sh HISTORY 108The 109.Nm 110device driver first appeared in 111.Fx 4.6 . 112.Sh AUTHORS 113.An -nosplit 114The 115.Nm 116device driver for 117.Fx 1184.x was written by 119.An Denis I. Timofeev , 120partially based on 121.An David Greenman Ns 's 122.Xr ed 4 123driver. 124Earlier versions (available on 125.Pa ftp.granch.com ) 126were written by 127.An Alexey V. Zverev . 128.Pp 129SBNI12 hardware was designed by 130.An Alexey V. Chirkov . 131