cram.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
/* All Rights Reserved */
#ifndef _SYS_CRAM_H
#define _SYS_CRAM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/ksynch.h>
#include <sys/kmem.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Defines for accessing the PC AT CMOS ram.
*/
#define CMOS_ADDR 0x70 /* I/O port address for CMOS ram address */
#define CMOS_DATA 0x71 /* I/O port address for CMOS ram data */
#define DSB 0x0e /* Diagnostic status byte ram address */
#define SSB 0x0f /* Shutdown status byte ram address */
#define DDTB 0x10 /* Diskette drive type byte ram address */
#define FDTB 0x12 /* Fixed disk type byte ram address */
#define EB 0x14 /* Equipment byte ram address */
#define BMLOW 0x15 /* Base mem size low byte ram address */
#define BMHIGH 0x16 /* Base mem size high byte ram address */
#define EMLOW 0x17 /* Expansion mem size low byte ram address */
#define EMHIGH 0x18 /* Expansion mem size high byte ram address */
#define DCEB 0x19 /* Drive C Extended byte ram address */
#define DDEB 0x1a /* Drive D Extended byte ram address */
#define CKSUMLOW 0x2e /* Checksum low byte ram address */
#define CKSUMHIGH 0x2f /* Checksum high byte ram address */
#define EMLOW2 0x30 /* Expansion mem size low byte ram address */
#define EMHIGH2 0x31 /* Expansion mem size high byte ram address */
#define DCB 0x32 /* Date century byte ram address */
#define IF 0x33 /* Information flag ram address */
/*
* ioctls for accessing CMOS ram.
*/
#define CMOSIOC ('C' << 8)
#define CMOSREAD (CMOSIOC | 0x01)
#define CMOSWRITE (CMOSIOC | 0x02)
extern unsigned char CMOSread();
/* Ports for interacting with chip at */
#define CMOSADDR 0x70 /* Use to select RAM address */
#define CMOSDATA 0x71 /* R/W data */
/* Number of cmos bytes */
#define CMOSSIZE 0x40 /* 64 addressable bytes in chip */
/* Addresses of interest */
#define CMOSDIAG 0x0e /* Diagnostic Status */
#define CMOSFDT 0x10 /* Floppy Disk Type */
#define CMOSHDT 0x12 /* Hard Disk Type; bits 7-4 are 1st drive */
#define CMOSEQP 0x14 /* Diskette, Video, and CoProcessor info */
#define CMOSADF 0x2d /* Additional flags - Compaq VDU info */
/* Shifts of interest */
#define VID_SHFT 4 /* Shift display type bits into 0-3 */
/* masks of interest */
#define CMPQVDU 0x04 /* Compaq VDU bit */
#define CMPQDMM 0x01 /* Compaq Dual Mode Monitor bit */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CRAM_H */