/*
 * 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

#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 */