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