Annotation of sys/dev/ic/hayespreg.h, Revision 1.1.1.1
1.1 nbrk 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_ */
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