IFND    RESOURCES_DISK_I
RESOURCES_DISK_I        SET     1
**
**      $Filename: resources/disk.i $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 27.10 $
**      $Date: 90/11/21 $
**
**      disk.i -- external declarations for the disk resource
**
**      (C) Copyright 1985-1999 Amiga, Inc.
**          All Rights Reserved
**

        IFND    EXEC_TYPES_I
        INCLUDE "exec/types.i"
        ENDC    !EXEC_TYPES_I

        IFND    EXEC_LISTS_I
        INCLUDE "exec/lists.i"
        ENDC    !EXEC_LISTS_I

        IFND    EXEC_PORTS_I
        INCLUDE "exec/ports.i"
        ENDC    !EXEC_PORTS_I

        IFND    EXEC_INTERRUPTS_I
        INCLUDE "exec/interrupts.i"
        ENDC    !EXEC_INTERRUPTS_I

        IFND    EXEC_LIBRARIES_I
        INCLUDE "exec/libraries.i"
        ENDC    !EXEC_LIBRARIES_I


*********************************************************************
*
* Resource structures
*
*********************************************************************

    STRUCTURE DISCRESOURCEUNIT,MN_SIZE
        STRUCT  DRU_DISCBLOCK,IS_SIZE
        STRUCT  DRU_DISCSYNC,IS_SIZE
        STRUCT  DRU_INDEX,IS_SIZE
        LABEL   DRU_SIZE



    STRUCTURE DISCRESOURCE,LIB_SIZE
        APTR    DR_CURRENT      ; pointer to current unit structure
        UBYTE   DR_FLAGS
        UBYTE   DR_pad
        APTR    DR_SYSLIB
        APTR    DR_CIARESOURCE
        STRUCT  DR_UNITID,4*4
        STRUCT  DR_WAITING,LH_SIZE
        STRUCT  DR_DISCBLOCK,IS_SIZE
        STRUCT  DR_DISCSYNC,IS_SIZE
        STRUCT  DR_INDEX,IS_SIZE
        APTR    DR_CURRTASK     ; pointer to owning task for GiveUnit
        LABEL   DR_SIZE

        BITDEF  DR,ALLOC0,0     ; unit zero is allocated
        BITDEF  DR,ALLOC1,1     ; unit one is allocated
        BITDEF  DR,ALLOC2,2     ; unit two is allocated
        BITDEF  DR,ALLOC3,3     ; unit three is allocated
        BITDEF  DR,ACTIVE,7     ; is the disc currently busy?


*********************************************************************
*
* Hardware Magic
*
*********************************************************************


DSKDMAOFF       EQU     $4000   ; idle command for dsklen register


*********************************************************************
*
* Resource specific commands
*
*********************************************************************

*-- DR_NAME is a generic macro to get the name of the resource.  This
*-- way if the name is ever changed you will pick up the change
*-- automatically.
*--
*-- Normal usage would be:
*--
*-- internalName:       DISKNAME
*--

DISKNAME:       MACRO
                DC.B    'disk.resource',0
                DS.W    0
                ENDM

        LIBINIT LIB_BASE
        LIBDEF  DR_ALLOCUNIT
        LIBDEF  DR_FREEUNIT
        LIBDEF  DR_GETUNIT
        LIBDEF  DR_GIVEUNIT
        LIBDEF  DR_GETUNITID
        LIBDEF  DR_READUNITID

DR_LASTCOMM     EQU     DR_READUNITID


*********************************************************************
*
* drive types
*
*********************************************************************

DRT_AMIGA       EQU     $00000000
DRT_37422D2S    EQU     $55555555
DRT_EMPTY       EQU     $FFFFFFFF
DRT_150RPM      EQU     $AAAAAAAA

        ENDC    ; RESOURCES_DISK_I