FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/i8255.h
1 /*-
2 * Copyright (c) 2008 TAKAHASHI Yoshihiro
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/10.0/sys/dev/ic/i8255.h 182835 2008-09-07 04:35:04Z nyan $
27 */
28
29 #ifndef _DEV_IC_I8255_H_
30 #define _DEV_IC_I8255_H_
31
32 /*
33 * modem status via SYSTM_PORTB
34 */
35 #define CICSCD_CD 0x20 /* CD */
36 #define CICSCD_CS 0x40 /* CS */
37 #define CICSCD_CI 0x80 /* CI */
38
39 /*
40 * control intrline via SYSTM_PORTC
41 */
42 #define IEN_Rx 0x01
43 #define IEN_TxEMP 0x02
44 #define IEN_Tx 0x04
45
46 #endif /* _DEV_IC_I8255_H_ */
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