/* $NetBSD: hpetreg.h,v 1.4 2011/10/31 12:47:15 yamt Exp $ */

/*
* Copyright (c) 2006 Nicolas Joly
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef _DEV_IC_HPETREG_H_
#define _DEV_IC_HPETREG_H_

#define HPET_WINDOW_SIZE        0x400

#define HPET_INFO               0x00
#define HPET_INFO_64BITS                0x2000
#define HPET_PERIOD             0x04
#define HPET_PERIOD_MAX                 100000000
#define HPET_CONFIG             0x10
#define HPET_CONFIG_ENABLE              0x0001
#define HPET_CONFIG_LEGRTCNF            0x0002
#define HPET_MCOUNT_LO          0xf0
#define HPET_MCOUNT_HI          0xf4
#define HPET_INT_STATUS         0x20
#define HPET_INT_STS_TIMER0             0x00000001
#define HPET_INT_STS_TIMER1             0x00000002
#define HPET_INT_STS_TIMER2             0x00000004

#define HPET_TIMER_USE_LEVEL_INTR       0x00000002
#define HPET_TIMER_ENABLE_INTR          0x00000004
#define HPET_TIMER_IS_PERIODIC_INTR     0x00000008
#define HPET_TIMER_HAS_PERIODIC_INTR    0x00000010
#define HPET_TIMER_INTR_SHIFT           9

#define HPET_TIMER0_CONFIG      0x0100
#define HPET_TIMER0_INTCAP      0x0104
#define HPET_TIMER0_CMPREG_LO   0x0108
#define HPET_TIMER0_CMPREG_HI   0x010C

#define HPET_TIMER1_CONFIG      0x0120
#define HPET_TIMER1_INTCAP      0x0124
#define HPET_TIMER1_CMPREG_LO   0x0128
#define HPET_TIMER1_CMPREG_HI   0x012C

#define HPET_TIMER2_CONFIG      0x0140
#define HPET_TIMER2_INTCAP      0x0144
#define HPET_TIMER2_CMPREG_LO   0x0148
#define HPET_TIMER2_CMPREG_HI   0x014C

#endif /* _DEV_IC_HPETREG_H_ */