xref: /trueos/sys/dev/ic/i8255.h (revision 598da5ab172a68da03b4ef0ea269980d585972ef)
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  * $FreeBSD$
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_ */
47