sys/dev/acpica/acpi_hpet.h

   1 /*-
   2  * Copyright (c) 2005 Poul-Henning Kamp
   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: src/sys/dev/acpica/acpi_hpet.h,v 1.1.2.1.2.1 2008/11/25 02:59:29 kensmith Exp $
  27  */
  28
  29 #ifndef __ACPI_HPET_H__
  30 #define __ACPI_HPET_H__
  31
  32 #define HPET_MEM_WIDTH          0x400   /* Expected memory region size */
  33 #define HPET_MEM_WIDTH_MIN      0x100
  34
  35 /* General registers */
  36 #define HPET_CAPABILITIES       0x0     /* General capabilities and ID */
  37 #define HPET_CAP_VENDOR_ID      0xffff0000
  38 #define HPET_CAP_LEG_RT         0x00008000
  39 #define HPET_CAP_COUNT_SIZE     0x00002000 /* 1 = 64-bit, 0 = 32-bit */
  40 #define HPET_CAP_NUM_TIM        0x00001f00
  41 #define HPET_CAP_REV_ID         0x000000ff
  42 #define HPET_PERIOD             0x4     /* Period (1/hz) of timer */
  43 #define HPET_CONFIG             0x10    /* General configuration register */
  44 #define HPET_CNF_LEG_RT         0x00000002
  45 #define HPET_CNF_ENABLE         0x00000001
  46 #define HPET_ISR                0x20    /* General interrupt status register */
  47 #define HPET_MAIN_COUNTER       0xf0    /* Main counter register */
  48
  49 /* Timer registers */
  50 #define HPET_TIMER_CAP_CNF(x)   ((x) * 0x20 + 0x100)
  51 #define HPET_TCAP_INT_ROUTE     0xffffffff00000000
  52 #define HPET_TCAP_FSB_INT_DEL   0x00008000
  53 #define HPET_TCNF_FSB_EN        0x00004000
  54 #define HPET_TCNF_INT_ROUTE     0x00003e00
  55 #define HPET_TCNF_32MODE        0x00000100
  56 #define HPET_TCNF_VAL_SET       0x00000040
  57 #define HPET_TCAP_SIZE          0x00000020 /* 1 = 64-bit, 0 = 32-bit */
  58 #define HPET_TCAP_PER_INT       0x00000010 /* Supports periodic interrupts */
  59 #define HPET_TCNF_TYPE          0x00000008 /* 1 = periodic, 0 = one-shot */
  60 #define HPET_TCNF_INT_ENB       0x00000004
  61 #define HPET_TCNT_INT_TYPE      0x00000002 /* 1 = level triggered, 0 = edge */
  62 #define HPET_TIMER_COMPARATOR(x) ((x) * 0x20 + 0x108)
  63 #define HPET_TIMER_FSB_VAL(x)   ((x) * 0x20 + 0x110)
  64 #define HPET_TIMER_FSB_ADDR(x)  ((x) * 0x20 + 0x114)
  65
  66 #endif /* !__ACPI_HPET_H__ */