1 .\" Copyright (c) 1995 Comtrol, Inc.
2 .\" All rights reserved.
4 .\" $FreeBSD: src/share/man/man4/rp.4,v 1.2.2.2 2003/06/10 21:01:38 ceri Exp $
10 .Nd "driver for Comtrol RocketPort Intelligent Serial Port Cards"
13 .Cd "device rp0 at isa? port 0x180"
15 This driver provides a kernel device driver for the
20 These boards provide 8, 16, or 32 high-speed serial ports
21 while requiring only 68 bytes of I/O space for all 8, 16,
22 or 32 ports, and do not require an interrupt channel.
23 This driver supports up to four
27 boards in one machine simultaneously.
28 If you are using four 32 port
30 boards, you can put as many as 128 intelligent serial ports
35 driver supports the following speeds: 50, 75, 110, 134, 150,
36 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 7200,
37 14400, 57600, 76800, 115200, and 230400.
40 rather than the old style ioctl interface to use non-traditional
45 driver will block until carrier is present, unless
50 .Sh HARDWARE CONFIGURATION
55 card requires a 68-byte contiguous block of I/O addresses,
56 starting at one of the following:
57 0x100h, 0x140h, 0x180h, 0x200h, 0x240h, 0x280h, 0x300h, 0x340h,
59 The second, third, and fourth
62 64-byte contiguous block of I/O addresses, starting at one of the
64 The I/O address range used by any of the
66 cards must not conflict with any other cards in the system,
70 The starting range of the I/O ports used by each card
71 must match with the I/O address specified in the kernel
76 uses 68 I/O addresses, if the first card is
77 set to use an I/O block starting at 0x100,
78 it will occupy the I/O ports between 0x100 and 0x143.
79 This means that the second, third, or fourth
81 board may not use the block of addresses starting at 0x140,
82 since the first three I/O addresses of that range
83 are used by the first board.
84 This is an important point to keep in mind.
86 The configuration of the
88 cards is done via the set of 8 DIP switches,
92 .Bd -literal -offset indent
93 +-------------------------------+
94 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
95 +-------+-------+---------------+
96 | Unused| Card | I/O Port Block|
97 +-------------------------------+
100 DIP switches 7 and 8 are unused, and must be left on.
102 DIP switches 6 and 5 identify the card number of each
105 The first card installed in the system must have its DIP switches set
106 as card number one; the second card installed in the system must have
107 its DIP switches set as card number two; and so on.
109 the factory, DIP switches 6 and 5 are both on by default, indicating
110 that this is the first card installed on the system:
111 .Bd -literal -offset indent
121 DIP switches 4, 3, 2, and 1 indicate the I/O address range used by the
125 If there are more than one
127 cards installed in a system,
128 the second, third and fourth
131 also be set to the I/O address range used by the first
134 all cards must have these DIP switches set identically
135 for proper operation.
136 As shipped from the factory, DIP switch 4 is on,
137 and switches 3, 2, and 1 are off by default,
138 indicating an I/O address range used by the first
139 card which starts at 0x180 and extends to 0x1C3.
140 .Bd -literal -offset indent
141 DIP Switches I/O Address Range
142 4 3 2 1 Used by the First Card
143 =====================================
144 On Off On Off 100-143
145 On Off Off On 140-183
146 On Off Off Off 180-1C3
147 Off On On Off 200-243
148 Off On Off On 240-283
149 Off On Off Off 280-2C3
150 Off Off On Off 300-343
151 Off Off Off On 340-383
152 Off Off Off Off 380-3C3
155 .Bl -tag -width ".Pa /dev/ttyR[RSTU][0-31]"
156 .It Pa /dev/ttyR[RSTU][0-31]
159 .An Theodore Ts'o Aq tytso@mit.edu
161 This driver was written under contract for Comtrol Corporation.
162 For dealer, distributor and other information regarding Comtrol
164 contact Comtrol Corporation at (800) 926-6876 or send email to
165 .Aq info@comtrol.com .
166 To report bugs for this driver, please send email to
167 .Aq bug-bsdi-rocketport@comtrol.com .
169 If incoming software flow control is enabled on a 486 or Pentium
170 machine, and the flow control is very heavily exercised, on rare occasions
171 a character will get dropped.
172 This problem does not occur on a 386, and
173 it is not currently known whether the bug is in the
179 .\" (Although my bet is that it's in the higher-level tty layer;
180 .\" given the bugs I found while writing this driver, it's clear
181 .\" the BSD software flow control code hasn't been tested very much