/*      $NetBSD: bootinfo.h,v 1.4 2001/09/27 09:55:10 minoura Exp $     */

/*
* Copyright (c) 1998 ITOH, Yasufumi
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _X68K_BOOTINFO_H_
#define _X68K_BOOTINFO_H_

/*
*      machine dependent boot information
*      passed from boot loader to the NetBSD kernel
*/

/*
* NetBSD/x68k uses MAKEBOOTDEV() framework defined in <sys/reboot.h>
*/
#include <sys/reboot.h>

/*
* for non-SCSI devices
*/
/* major */
#define X68K_MAJOR_FD   2       /* floppy disk */
#define X68K_MAJOR_MD   8       /* memory disk */
#define X68K_MAJOR_NE   255     /* network interface: ne */

#define X68K_MAKEBOOTDEV(major, unit, part) \
       MAKEBOOTDEV(major, 0, 0, unit, part)


/*
* for SCSI devices
*
* device major         -> type         (8bit)
* type of interface    -> adaptor      (4bit)
* unit # of interface  -> controller   (4bit)
* target SCSI ID       -> unit         (4bit)
* target LUN           -> partition    (3bit; bit 4:6)
* partition            -> partition    (4bit; bit 0:3)
*
* bit #7 of "partition" is reserved for future extension
*/
/* major */
#define X68K_MAJOR_SD   4       /* SCSI disk */
/*      X68K_MAJOR_ST   5       XXX not yet */
#define X68K_MAJOR_CD   7       /* SCSI CD-ROM */

/* type_if */
#define X68K_BOOT_SCSIIF_OLDBOOT        0       /* old boot used this value */
#define X68K_BOOT_SCSIIF_SPC            1       /* spc */
#define X68K_BOOT_SCSIIF_MHA            2       /* mha */

#define X68K_MAKESCSIBOOTDEV(major, type_if, unit_if, scsi_id, lun, part) \
       MAKEBOOTDEV(major, type_if, unit_if, scsi_id, ((lun) << 4) | (part))

#define B_X68K_SCSI_IF(val)     B_ADAPTOR(val)
#define B_X68K_SCSI_IF_UN(val)  B_CONTROLLER(val)

#define B_X68K_SCSI_ID(val)     B_UNIT(val)
#define B_X68K_SCSI_LUN(val)    (((val) >> (B_PARTITIONSHIFT + 4)) & 07)

#define B_X68K_SCSI_PART(val)   (((val) >> B_PARTITIONSHIFT) & 017)

#if 0
/* this bit is reserved for future extension */
#define B_X68K_SCSI_EXT(val)    (((val) >> (B_PARTITIONSHIFT + 7)) & 01)
#endif


/*
* for array initialization
*/

#define X68K_BOOT_DEV_LIST              \
       { "fd", X68K_MAJOR_FD },        \
       { "sd", X68K_MAJOR_SD },        \
       { "cd", X68K_MAJOR_CD },        \
       { "md", X68K_MAJOR_MD }

#define X68K_BOOT_DEV_STRINGS           \
       NULL, NULL, "fd", NULL, "sd", NULL, NULL, "cd"

#define X68K_BOOT_DEV_IS_SCSI(major)    \
       ((major) == X68K_MAJOR_SD ||    \
        (major) == X68K_MAJOR_CD)

#define X68K_BOOT_SCSIIF_LIST           \
       { "spc", X68K_BOOT_SCSIIF_SPC },\
       { "mha", X68K_BOOT_SCSIIF_MHA }

#define X68K_BOOT_SCSIIF_STRINGS        \
       NULL, "spc", "mha"

#define X68K_BOOT_NETIF_LIST            \
       { "ne", X68K_MAJOR_NE }

#define X68K_BOOT_NETIF_STRINGS         \
       "ne"

#define X68K_BOOT_DEV_IS_NETIF(major)   \
       ((major) == X68K_MAJOR_NE)


/* Kernel boot interface version */
#define X68K_BOOTIF_VERS        0
#define X68K_BOOTIF_VERS_COMPAT 0x4e73 /* rte instruction */

#endif /* _X68K_BOOTINFO_H_ */