/*
  Hatari - fdc.h

  This file is distributed under the GNU Public License, version 2 or at
  your option any later version. Read the file gpl.txt for details.
*/

#ifndef HATARI_FDC_H
#define HATARI_FDC_H

/*-----------------------------------------------------------------------*/
/* FDC Emulation commands */
enum
{
	FDCEMU_CMD_NULL = 0,
	/* Type I */
	FDCEMU_CMD_RESTORE,
	FDCEMU_CMD_SEEK,
	FDCEMU_CMD_STEP,
	FDCEMU_CMD_STEPIN,
	FDCEMU_CMD_STEPOUT,
	/* Type II */
	FDCEMU_CMD_READSECTORS,
	FDCEMU_CMD_READMULTIPLESECTORS,
	FDCEMU_CMD_WRITESECTORS,
	FDCEMU_CMD_WRITEMULTIPLESECTORS
};

/* FDC Emulation commands */
#define  FDCEMU_RUN_NULL      0

/* FDC Running Restore commands */
enum
{
	FDCEMU_RUN_RESTORE_SEEKTOTRACKZERO,
	FDCEMU_RUN_RESTORE_COMPLETE
};

/* FDC Running Seek commands */
enum
{
	FDCEMU_RUN_SEEK_TOTRACK,
	FDCEMU_RUN_SEEK_COMPLETE
};

/* FDC Running Step commands */
enum
{
	FDCEMU_RUN_STEP_ONCE,
	FDCEMU_RUN_STEP_COMPLETE
};

/* FDC Running Step In commands */
enum
{
	FDCEMU_RUN_STEPIN_ONCE,
	FDCEMU_RUN_STEPIN_COMPLETE
};

/* FDC Running Step Out commands */
enum
{
	FDCEMU_RUN_STEPOUT_ONCE,
	FDCEMU_RUN_STEPOUT_COMPLETE
};

/* FDC Running Read Sector/s commands */
enum
{
	FDCEMU_RUN_READSECTORS_READDATA,
	FDCEMU_RUN_READSECTORS_COMPLETE
};

/* FDC Running write Sector/s commands */
enum
{
	FDCEMU_RUN_WRITESECTORS_WRITEDATA,
	FDCEMU_RUN_WRITESECTORS_COMPLETE
};


extern Sint16 FDCSectorCountRegister;
extern Uint16 DiskControllerWord_ff8604wr;
extern Uint16 DMAModeControl_ff8606wr;


extern void FDC_Reset(void);
extern void FDC_MemorySnapShot_Capture(BOOL bSave);
extern void FDC_ResetDMAStatus(void);
extern void FDC_SetDMAStatus(BOOL bError);
extern void FDC_DmaStatus_ReadWord(void);
extern int FDC_FindFloppyDrive(void);
extern void FDC_AcknowledgeInterrupt(void);
extern void FDC_GpipRead(void);
extern void FDC_UpdateHBL(void);
extern void FDC_UpdateRestoreCmd(void);
extern void FDC_UpdateSeekCmd(void);
extern void FDC_UpdateStepCmd(void);
extern void FDC_UpdateStepInCmd(void);
extern void FDC_UpdateStepOutCmd(void);
extern void FDC_UpdateReadSectorsCmd(void);
extern void FDC_UpdateWriteSectorsCmd(void);
extern Uint32 FDC_ReadDMAAddress(void);
extern void FDC_WriteDMAAddress(Uint32 Address);
extern BOOL FDC_ReadSectorFromFloppy(void);
extern BOOL FDC_WriteSectorFromFloppy(void);
extern void FDC_DMADataFromFloppy(void);
extern void FDC_DiskController_WriteWord(void);
extern void FDC_DiskControllerStatus_ReadWord(void);
extern void FDC_DmaModeControl_WriteWord(void);


#endif /* ifndef HATARI_FDC_H */