1/* $NetBSD: umct.h,v 1.2 2008/04/28 20:24:00 martin Exp $ */
2/*
3 * Copyright (c) 2001 The NetBSD Foundation, Inc.
4 * All rights reserved.
5 *
6 * This code is derived from software contributed to The NetBSD Foundation
7 * by Ichiro FUKUHARA (ichiro@ichiro.org).
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/*
32 * Vendor Request Interface
33 */
34#define UMCT_SET_REQUEST 0x40
35#define UMCT_GET_REQUEST 0xc0
36
37#define REQ_SET_BAUD_RATE 5 /* Set Baud Rate Divisor */
38#define LENGTH_BAUD_RATE 4
39
40#define REQ_GET_MSR 2 /* Get Modem Status Register (MSR) */
41#define LENGTH_GET_MSR 1
42
43#define REQ_GET_LCR 6 /* Get Line Control Register (LCR) */
44#define LENGTH_GET_LCR 1
45
46#define REQ_SET_LCR 7 /* Set Line Control Register (LCR) */
47#define LENGTH_SET_LCR 1
48
49#define REQ_SET_MCR 10 /* Set Modem Control Register (MCR) */
50#define LENGTH_SET_MCR 1
51
52/*
53 * Baud rate (divisor)
54 */
55#define UMCT_BAUD_RATE(b) (115200/b)
56
57/*
58 * Line Control Register (LCR)
59 */
60#define LCR_SET_BREAK 0x40
61#define LCR_PARITY_EVEN 0x18
62#define LCR_PARITY_ODD 0x08
63#define LCR_PARITY_NONE 0x00
64#define LCR_DATA_BITS_5 0x00
65#define LCR_DATA_BITS_6 0x01
66#define LCR_DATA_BITS_7 0x02
67#define LCR_DATA_BITS_8 0x03
68#define LCR_STOP_BITS_2 0x04
69#define LCR_STOP_BITS_1 0x00
70
71/*
72 * Modem Control Register (MCR)
73 */
74#define MCR_NONE 0x8
75#define MCR_RTS 0xa
76#define MCR_DTR 0x9
77
78/*
79 * Modem Status Register (MSR)
80 */
81#define MSR_CD 0x80 /* Current CD */
82#define MSR_RI 0x40 /* Current RI */
83#define MSR_DSR 0x20 /* Current DSR */
84#define MSR_CTS 0x10 /* Current CTS */
85#define MSR_DCD 0x08 /* Delta CD */
86#define MSR_DRI 0x04 /* Delta RI */
87#define MSR_DDSR 0x02 /* Delta DSR */
88#define MSR_DCTS 0x01 /* Delta CTS */
89
90/*
91 * Line Status Register (LSR)
92 */
93#define LSR_ERR 0x80 /* OE | PE | FE | BI */
94#define LSR_TEMT 0x40 /* transmit register empty */
95#define LSR_THRE 0x20 /* transmit holding register empty */
96#define LSR_BI 0x10 /* break indicator */
97#define LSR_FE 0x08 /* framing error */
98#define LSR_OE 0x02 /* overrun error */
99#define LSR_PE 0x04 /* parity error */
100#define LSR_OE 0x02 /* overrun error */
101#define LSR_DR 0x01 /* receive data ready */
102