xref: /netbsd-src/sys/dev/ic/hpetreg.h (revision f2b7f3dffc3ab572e3e8e9c28cd831728cc35bb0)
1 /* $NetBSD: hpetreg.h,v 1.4 2011/10/31 12:47:15 yamt Exp $ */
2 
3 /*
4  * Copyright (c) 2006 Nicolas Joly
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 #ifndef _DEV_IC_HPETREG_H_
32 #define _DEV_IC_HPETREG_H_
33 
34 #define	HPET_WINDOW_SIZE	0x400
35 
36 #define HPET_INFO		0x00
37 #define HPET_INFO_64BITS 		0x2000
38 #define HPET_PERIOD		0x04
39 #define HPET_PERIOD_MAX			100000000
40 #define HPET_CONFIG		0x10
41 #define HPET_CONFIG_ENABLE		0x0001
42 #define HPET_CONFIG_LEGRTCNF		0x0002
43 #define HPET_MCOUNT_LO		0xf0
44 #define HPET_MCOUNT_HI		0xf4
45 #define HPET_INT_STATUS		0x20
46 #define HPET_INT_STS_TIMER0		0x00000001
47 #define HPET_INT_STS_TIMER1		0x00000002
48 #define HPET_INT_STS_TIMER2		0x00000004
49 
50 #define HPET_TIMER_USE_LEVEL_INTR	0x00000002
51 #define HPET_TIMER_ENABLE_INTR		0x00000004
52 #define HPET_TIMER_IS_PERIODIC_INTR	0x00000008
53 #define HPET_TIMER_HAS_PERIODIC_INTR	0x00000010
54 #define	HPET_TIMER_INTR_SHIFT		9
55 
56 #define HPET_TIMER0_CONFIG	0x0100
57 #define HPET_TIMER0_INTCAP	0x0104
58 #define HPET_TIMER0_CMPREG_LO	0x0108
59 #define HPET_TIMER0_CMPREG_HI	0x010C
60 
61 #define HPET_TIMER1_CONFIG	0x0120
62 #define HPET_TIMER1_INTCAP	0x0124
63 #define HPET_TIMER1_CMPREG_LO	0x0128
64 #define HPET_TIMER1_CMPREG_HI	0x012C
65 
66 #define HPET_TIMER2_CONFIG	0x0140
67 #define HPET_TIMER2_INTCAP	0x0144
68 #define HPET_TIMER2_CMPREG_LO	0x0148
69 #define HPET_TIMER2_CMPREG_HI	0x014C
70 
71 #endif /* _DEV_IC_HPETREG_H_ */
72