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disk.h
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1993-10-15
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#ifndef RESOURCES_DISK_H
#define RESOURCES_DISK_H
/*
** $VER: disk.h 27.11 (21.11.90)
** Includes Release 40.15
**
** disk.h -- external declarations for the disk resource
**
** (C) Copyright 1985-1993 Commodore-Amiga, Inc.
** All Rights Reserved
*/
#ifndef EXEC_TYPES_H
#include "exec/types.h"
#endif
#ifndef EXEC_LISTS_H
#include "exec/lists.h"
#endif
#ifndef EXEC_PORTS_H
#include "exec/ports.h"
#endif
#ifndef EXEC_INTERRUPTS_H
#include "exec/interrupts.h"
#endif
#ifndef EXEC_LIBRARIES_H
#include "exec/libraries.h"
#endif
/********************************************************************
*
* Resource structures
*
********************************************************************/
struct DiscResourceUnit {
struct Message dru_Message;
struct Interrupt dru_DiscBlock;
struct Interrupt dru_DiscSync;
struct Interrupt dru_Index;
};
struct DiscResource {
struct Library dr_Library;
struct DiscResourceUnit *dr_Current;
UBYTE dr_Flags;
UBYTE dr_pad;
struct Library *dr_SysLib;
struct Library *dr_CiaResource;
ULONG dr_UnitID[4];
struct List dr_Waiting;
struct Interrupt dr_DiscBlock;
struct Interrupt dr_DiscSync;
struct Interrupt dr_Index;
struct Task *dr_CurrTask;
};
/* dr_Flags entries */
#define DRB_ALLOC0 0 /* unit zero is allocated */
#define DRB_ALLOC1 1 /* unit one is allocated */
#define DRB_ALLOC2 2 /* unit two is allocated */
#define DRB_ALLOC3 3 /* unit three is allocated */
#define DRB_ACTIVE 7 /* is the disc currently busy? */
#define DRF_ALLOC0 (1<<0) /* unit zero is allocated */
#define DRF_ALLOC1 (1<<1) /* unit one is allocated */
#define DRF_ALLOC2 (1<<2) /* unit two is allocated */
#define DRF_ALLOC3 (1<<3) /* unit three is allocated */
#define DRF_ACTIVE (1<<7) /* is the disc currently busy? */
/********************************************************************
*
* Hardware Magic
*
********************************************************************/
#define DSKDMAOFF 0x4000 /* idle command for dsklen register */
/********************************************************************
*
* Resource specific commands
*
********************************************************************/
/*
* DISKNAME 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.
*/
#define DISKNAME "disk.resource"
#define DR_ALLOCUNIT (LIB_BASE - 0*LIB_VECTSIZE)
#define DR_FREEUNIT (LIB_BASE - 1*LIB_VECTSIZE)
#define DR_GETUNIT (LIB_BASE - 2*LIB_VECTSIZE)
#define DR_GIVEUNIT (LIB_BASE - 3*LIB_VECTSIZE)
#define DR_GETUNITID (LIB_BASE - 4*LIB_VECTSIZE)
#define DR_READUNITID (LIB_BASE - 5*LIB_VECTSIZE)
#define DR_LASTCOMM (DR_READUNITID)
/********************************************************************
*
* drive types
*
********************************************************************/
#define DRT_AMIGA (0x00000000)
#define DRT_37422D2S (0x55555555)
#define DRT_EMPTY (0xFFFFFFFF)
#define DRT_150RPM (0xAAAAAAAA)
#endif /* RESOURCES_DISK_H */