xref: /titanic_54/usr/src/uts/common/sys/i8042.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #ifndef _SYS_I8042_H
28*7c478bd9Sstevel@tonic-gate #define	_SYS_I8042_H
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*7c478bd9Sstevel@tonic-gate 
32*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
33*7c478bd9Sstevel@tonic-gate extern "C" {
34*7c478bd9Sstevel@tonic-gate #endif
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate /*
37*7c478bd9Sstevel@tonic-gate  * Here's the interface to the virtual registers on the device.
38*7c478bd9Sstevel@tonic-gate  *
39*7c478bd9Sstevel@tonic-gate  * Normal interrupt-driven I/O:
40*7c478bd9Sstevel@tonic-gate  *
41*7c478bd9Sstevel@tonic-gate  * I8042_INT_INPUT_AVAIL
42*7c478bd9Sstevel@tonic-gate  *	Interrupt mode input bytes available?  Zero = No.
43*7c478bd9Sstevel@tonic-gate  * I8042_INT_INPUT_DATA
44*7c478bd9Sstevel@tonic-gate  *	Fetch interrupt mode input byte.
45*7c478bd9Sstevel@tonic-gate  * I8042_INT_OUTPUT_DATA
46*7c478bd9Sstevel@tonic-gate  *	Interrupt mode output byte.
47*7c478bd9Sstevel@tonic-gate  *
48*7c478bd9Sstevel@tonic-gate  * Polled I/O, used by (e.g.) kmdb, when normal system services are
49*7c478bd9Sstevel@tonic-gate  * unavailable:
50*7c478bd9Sstevel@tonic-gate  *
51*7c478bd9Sstevel@tonic-gate  * I8042_POLL_INPUT_AVAIL
52*7c478bd9Sstevel@tonic-gate  *	Polled mode input bytes available?  Zero = No.
53*7c478bd9Sstevel@tonic-gate  * I8042_POLL_INPUT_DATA
54*7c478bd9Sstevel@tonic-gate  *	Polled mode input byte.
55*7c478bd9Sstevel@tonic-gate  * I8042_POLL_OUTPUT_DATA
56*7c478bd9Sstevel@tonic-gate  *	Polled mode output byte.
57*7c478bd9Sstevel@tonic-gate  */
58*7c478bd9Sstevel@tonic-gate 
59*7c478bd9Sstevel@tonic-gate #define	I8042_INT_INPUT_AVAIL	0x00
60*7c478bd9Sstevel@tonic-gate #define	I8042_INT_INPUT_DATA	0x01
61*7c478bd9Sstevel@tonic-gate #define	I8042_INT_OUTPUT_DATA	0x03
62*7c478bd9Sstevel@tonic-gate #define	I8042_POLL_INPUT_AVAIL	0x10
63*7c478bd9Sstevel@tonic-gate #define	I8042_POLL_INPUT_DATA	0x11
64*7c478bd9Sstevel@tonic-gate #define	I8042_POLL_OUTPUT_DATA	0x13
65*7c478bd9Sstevel@tonic-gate 
66*7c478bd9Sstevel@tonic-gate /* Softint priority used */
67*7c478bd9Sstevel@tonic-gate #define	I8042_SOFTINT_PRI	4
68*7c478bd9Sstevel@tonic-gate 
69*7c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
70*7c478bd9Sstevel@tonic-gate }
71*7c478bd9Sstevel@tonic-gate #endif
72*7c478bd9Sstevel@tonic-gate 
73*7c478bd9Sstevel@tonic-gate #endif	/* _SYS_I8042_H */
74