1 /* $OpenBSD: hayespreg.h,v 1.2 1996/10/31 01:01:30 niklas Exp $ */
2 /* $NetBSD: hayespreg.h,v 1.1 1996/02/10 20:23:40 christos Exp $ */
3
4 /*-
5 * Copyright (c) 1995 Sean E. Fagin, John M Vinopal.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #ifndef _HAYESPREG_H_
33 #define _HAYESPREG_H_
34
35 /*
36 * Definitions for Hayes ESP serial cards.
37 */
38
39 /*
40 * CMD1 and CMD2 are the command ports, offsets from <hayesp_iobase>.
41 */
42 #define HAYESP_CMD1 4
43 #define HAYESP_CMD2 5
44
45 /*
46 * STAT1 and STAT2 are to get return values and status bytes
47 */
48 #define HAYESP_STATUS1 HAYESP_CMD1
49 #define HAYESP_STATUS2 HAYESP_CMD2
50
51 /*
52 * Commands. Commands are given by writing the command value to
53 * HAYESP_CMD1 and then writing or reading some number of bytes from
54 * HAYESP_CMD2 or HAYESP_STATUS2.
55 */
56 #define HAYESP_GETTEST 0x01 /* self-test command (1b+extras) */
57 #define HAYESP_GETDIPS 0x02 /* get on-board DIP switches (1b) */
58 #define HAYESP_SETFLOWTYPE 0x08 /* set type of flow-control (2b) */
59 #define HAYESP_SETRXFLOW 0x0a /* set Rx FIFO " levels (4b) */
60 #define HAYESP_SETMODE 0x10 /* set board mode (1b) */
61
62 /* Mode bits (HAYESP_SETMODE). */
63 #define HAYESP_MODE_FIFO 0x02 /* act like a 16550 (compat mode) */
64 #define HAYESP_MODE_RTS 0x04 /* use RTS hardware flow control */
65 #define HAYESP_MODE_SCALE 0x80 /* scale FIFO trigger levels */
66
67 /* Flow control type bits (HAYESP_SETFLOWTYPE). */
68 #define HAYESP_FLOW_RTS 0x04 /* cmd1: local Rx sends RTS flow control */
69 #define HAYESP_FLOW_CTS 0x10 /* cmd2: local transmitter responds to CTS */
70
71 /* Used by HAYESP_SETRXFLOW. */
72 #define HAYESP_RXHIWMARK 768
73 #define HAYESP_RXLOWMARK 512
74 #define HAYESP_HIBYTE(w) (((w) >> 8) & 0xff)
75 #define HAYESP_LOBYTE(w) ((w) & 0xff)
76
77 #endif /* !_HAYESPREG_H_ */