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1.1 root 1: /*
1.1.1.3 root 2: Hatari - hdc.h
3:
1.1.1.9 root 4: This file is distributed under the GNU General Public License, version 2
5: or at your option any later version. Read the file gpl.txt for details.
1.1 root 6:
1.1.1.4 root 7: This file contains definitions which are used for hardware-level
1.1.1.3 root 8: harddrive emulation.
1.1 root 9: */
10:
1.1.1.3 root 11: #ifndef HATARI_HDC_H
12: #define HATARI_HDC_H
13:
1.1 root 14:
15: /* Opcodes */
16: /* The following are multi-sector transfers with seek implied */
17: #define HD_VERIFY_TRACK 0x05 /* Verify track */
18: #define HD_FORMAT_TRACK 0x06 /* Format track */
19: #define HD_READ_SECTOR 0x08 /* Read sector */
1.1.1.8 root 20: #define HD_READ_SECTOR1 0x28 /* Read sector (class 1) */
1.1 root 21: #define HD_WRITE_SECTOR 0x0A /* Write sector */
1.1.1.8 root 22: #define HD_WRITE_SECTOR1 0x2A /* Write sector (class 1) */
1.1 root 23:
24: /* other codes */
1.1.1.7 root 25: #define HD_TEST_UNIT_RDY 0x00 /* Test unit ready */
1.1.1.4 root 26: #define HD_FORMAT_DRIVE 0x04 /* Format the whole drive */
1.1 root 27: #define HD_SEEK 0x0B /* Seek */
28: #define HD_CORRECTION 0x0D /* Correction */
29: #define HD_INQUIRY 0x12 /* Inquiry */
1.1.1.4 root 30: #define HD_MODESELECT 0x15 /* Mode select */
1.1 root 31: #define HD_MODESENSE 0x1A /* Mode sense */
32: #define HD_REQ_SENSE 0x03 /* Request sense */
33: #define HD_SHIP 0x1B /* Ship drive */
1.1.1.8 root 34: #define HD_READ_CAPACITY1 0x25 /* Read capacity (class 1) */
1.1 root 35:
1.1.1.4 root 36: /* Status codes */
37: #define HD_STATUS_OK 0x00
38: #define HD_STATUS_ERROR 0x02
39: #define HD_STATUS_BUSY 0x08
40:
41: /* Error codes for REQUEST SENSE: */
1.1.1.6 root 42: #define HD_REQSENS_OK 0x00 /* OK return status */
43: #define HD_REQSENS_NOSECTOR 0x01 /* No index or sector */
44: #define HD_REQSENS_WRITEERR 0x03 /* Write fault */
45: #define HD_REQSENS_OPCODE 0x20 /* Opcode not supported */
46: #define HD_REQSENS_INVADDR 0x21 /* Invalid block address */
47: #define HD_REQSENS_INVARG 0x24 /* Invalid argument */
1.1.1.10 root 48: #define HD_REQSENS_INVLUN 0x25 /* Invalid LUN */
1.1.1.4 root 49:
1.1.1.13! root 50: /**
! 51: * Information about a ACSI/SCSI drive
! 52: */
! 53: typedef struct scsi_data {
! 54: bool enabled;
! 55: FILE *image_file;
! 56: Uint32 nLastBlockAddr; /* The specified sector number */
! 57: bool bSetLastBlockAddr;
! 58: Uint8 nLastError;
! 59: unsigned long hdSize; /* Size of the hard disk in sectors */
! 60: unsigned long blockSize; /* Size of a sector in bytes */
! 61: /* For NCR5380 emulation: */
! 62: int direction;
! 63: Uint8 msgout[4];
! 64: Uint8 cmd[16];
! 65: int cmd_len;
! 66: } SCSI_DEV;
! 67:
! 68: /**
! 69: * Status of the ACSI/SCSI bus/controller including the current command block.
! 70: */
! 71: typedef struct {
! 72: const char *typestr; /* "ACSI" or "SCSI" */
! 73: int target;
! 74: int byteCount; /* number of command bytes received */
! 75: Uint8 command[16];
! 76: Uint8 opcode;
! 77: bool bDmaError;
! 78: short int status; /* return code from the HDC operation */
! 79: Uint8 *buffer; /* Response buffer */
! 80: int buffer_size;
! 81: int data_len;
! 82: int offset; /* Current offset into data buffer */
! 83: FILE *dmawrite_to_fh;
! 84: SCSI_DEV devs[8];
! 85: } SCSI_CTRLR;
! 86:
1.1.1.4 root 87: #define ACSI_EMU_ON bAcsiEmuOn /* Do we have HDC emulation? */
1.1 root 88:
1.1.1.11 root 89: extern int nAcsiPartitions;
1.1.1.5 root 90: extern bool bAcsiEmuOn;
1.1 root 91:
1.1.1.8 root 92: /**
93: * API.
94: */
1.1.1.7 root 95: extern bool HDC_Init(void);
1.1.1.3 root 96: extern void HDC_UnInit(void);
1.1.1.13! root 97: extern int HDC_InitDevice(SCSI_DEV *dev, char *filename, unsigned long blockSize);
1.1.1.8 root 98: extern void HDC_ResetCommandStatus(void);
1.1.1.10 root 99: extern short int HDC_ReadCommandByte(int addr);
100: extern void HDC_WriteCommandByte(int addr, Uint8 byte);
1.1.1.13! root 101: extern int HDC_PartitionCount(FILE *fp, const Uint64 tracelevel, int *pIsByteSwapped);
! 102: extern off_t HDC_CheckAndGetSize(const char *filename, unsigned long blockSize);
! 103: extern bool HDC_WriteCommandPacket(SCSI_CTRLR *ctr, Uint8 b);
! 104: extern void HDC_DmaTransfer(void);
1.1.1.3 root 105:
106: #endif /* HATARI_HDC_H */
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