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1.1 root 1: /*
1.1.1.3 root 2: Hatari - fdc.h
3:
4: This file is distributed under the GNU Public License, version 2 or at
5: your option any later version. Read the file gpl.txt for details.
1.1 root 6: */
7:
1.1.1.3 root 8: #ifndef HATARI_FDC_H
9: #define HATARI_FDC_H
10:
1.1.1.2 root 11: /*-----------------------------------------------------------------------*/
12: /* FDC Emulation commands */
1.1.1.4 root 13: enum
14: {
15: FDCEMU_CMD_NULL = 0,
16: /* Type I */
17: FDCEMU_CMD_RESTORE,
18: FDCEMU_CMD_SEEK,
19: FDCEMU_CMD_STEP,
20: FDCEMU_CMD_STEPIN,
21: FDCEMU_CMD_STEPOUT,
22: /* Type II */
23: FDCEMU_CMD_READSECTORS,
24: FDCEMU_CMD_READMULTIPLESECTORS,
25: FDCEMU_CMD_WRITESECTORS,
26: FDCEMU_CMD_WRITEMULTIPLESECTORS
1.1 root 27: };
28:
1.1.1.2 root 29: /* FDC Emulation commands */
1.1 root 30: #define FDCEMU_RUN_NULL 0
31:
1.1.1.2 root 32: /* FDC Running Restore commands */
1.1.1.4 root 33: enum
34: {
35: FDCEMU_RUN_RESTORE_SEEKTOTRACKZERO,
36: FDCEMU_RUN_RESTORE_COMPLETE
1.1 root 37: };
38:
1.1.1.2 root 39: /* FDC Running Seek commands */
1.1.1.4 root 40: enum
41: {
42: FDCEMU_RUN_SEEK_TOTRACK,
43: FDCEMU_RUN_SEEK_COMPLETE
1.1 root 44: };
45:
1.1.1.2 root 46: /* FDC Running Step commands */
1.1.1.4 root 47: enum
48: {
49: FDCEMU_RUN_STEP_ONCE,
50: FDCEMU_RUN_STEP_COMPLETE
1.1 root 51: };
52:
1.1.1.2 root 53: /* FDC Running Step In commands */
1.1.1.4 root 54: enum
55: {
56: FDCEMU_RUN_STEPIN_ONCE,
57: FDCEMU_RUN_STEPIN_COMPLETE
1.1 root 58: };
59:
1.1.1.2 root 60: /* FDC Running Step Out commands */
1.1.1.4 root 61: enum
62: {
63: FDCEMU_RUN_STEPOUT_ONCE,
64: FDCEMU_RUN_STEPOUT_COMPLETE
1.1 root 65: };
66:
1.1.1.2 root 67: /* FDC Running Read Sector/s commands */
1.1.1.4 root 68: enum
69: {
70: FDCEMU_RUN_READSECTORS_READDATA,
71: FDCEMU_RUN_READSECTORS_COMPLETE
1.1 root 72: };
73:
1.1.1.2 root 74: /* FDC Running write Sector/s commands */
1.1.1.4 root 75: enum
76: {
77: FDCEMU_RUN_WRITESECTORS_WRITEDATA,
78: FDCEMU_RUN_WRITESECTORS_COMPLETE
1.1 root 79: };
80:
1.1.1.3 root 81:
1.1.1.7 root 82: /* Commands are taking the equivalent of FDC_HBL_DELAY hbl's to execute */
83: /* to try to simulate the speed of a real ST floppy drive */
84: #define FDC_DELAY_CYCLES 92160
85: //#define FDC_DELAY_CYCLES 1536 // 'Just Bugging Demo' by ACF requires a very fast delay (bug in the loader)
86:
87:
1.1.1.5 root 88: extern Sint16 FDCSectorCountRegister;
89: extern Uint16 DiskControllerWord_ff8604wr;
1.1.1.4 root 90: extern Uint16 DMAModeControl_ff8606wr;
1.1.1.3 root 91:
92:
1.1 root 93: extern void FDC_Reset(void);
1.1.1.8 ! root 94: extern void FDC_MemorySnapShot_Capture(bool bSave);
1.1 root 95: extern void FDC_ResetDMAStatus(void);
1.1.1.8 ! root 96: extern void FDC_SetDMAStatus(bool bError);
1.1.1.4 root 97: extern void FDC_DmaStatus_ReadWord(void);
1.1.1.2 root 98: extern int FDC_FindFloppyDrive(void);
99: extern void FDC_AcknowledgeInterrupt(void);
1.1.1.6 root 100: extern void FDC_GpipRead(void);
1.1.1.7 root 101: extern void FDC_InterruptHandler_Update(void);
1.1 root 102: extern void FDC_UpdateRestoreCmd(void);
103: extern void FDC_UpdateSeekCmd(void);
104: extern void FDC_UpdateStepCmd(void);
105: extern void FDC_UpdateStepInCmd(void);
106: extern void FDC_UpdateStepOutCmd(void);
107: extern void FDC_UpdateReadSectorsCmd(void);
108: extern void FDC_UpdateWriteSectorsCmd(void);
1.1.1.4 root 109: extern Uint32 FDC_ReadDMAAddress(void);
110: extern void FDC_WriteDMAAddress(Uint32 Address);
1.1.1.8 ! root 111: extern bool FDC_ReadSectorFromFloppy(void);
! 112: extern bool FDC_WriteSectorFromFloppy(void);
1.1 root 113: extern void FDC_DMADataFromFloppy(void);
1.1.1.5 root 114: extern void FDC_DiskController_WriteWord(void);
115: extern void FDC_DiskControllerStatus_ReadWord(void);
1.1.1.4 root 116: extern void FDC_DmaModeControl_WriteWord(void);
1.1.1.7 root 117: extern void FDC_FloppyMode_WriteByte(void);
118: extern void FDC_FloppyMode_ReadByte(void);
1.1.1.3 root 119:
120:
121: #endif /* ifndef HATARI_FDC_H */
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