91 lines
1.9 KiB
C
91 lines
1.9 KiB
C
#ifndef DRIVER_H
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#define DRIVER_H
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#include <types.h>
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#define DEVICE_MFM_DRIVE 0x0017 /* This is the ID used for FDHD SuperDrives */
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#define NDIBS 16
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/* device information block */
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struct DIB {
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void *linkPtr;
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void *entryPtr;
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Word characteristics;
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LongWord blockCount;
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char devName[32];
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Word slotNum;
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Word unitNum;
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Word version;
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Word deviceID;
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Word headlink;
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Word forwardLink;
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void *extendedDIBPtr;
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Word DIBDevNum;
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};
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/* list of DIBs (argument to INSTALL_DRIVER) */
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struct DIBList {
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LongWord count;
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struct DIB *dibPointers[NDIBS];
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};
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/* GS/OS direct page structure */
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struct GSOSDP {
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Word deviceNum;
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Word callNum;
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Byte *bufferPtr;
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LongWord requestCount;
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LongWord transferCount;
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LongWord blockNum;
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Word blockSize;
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Word fstNum;
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Word volumeID;
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Word cachePriority;
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void *cachePointer;
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struct DIB *dibPointer;
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};
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#define statusListPtr bufferPtr
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#define statusCode fstNum
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#define controlListPtr bufferPtr
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#define controlCode fstNum
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/* GS/OS driver call numbers */
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#define Driver_Startup 0x0000
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#define Driver_Open 0x0001
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#define Driver_Read 0x0002
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#define Driver_Write 0x0003
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#define Driver_Close 0x0004
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#define Driver_Status 0x0005
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#define Driver_Control 0x0006
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#define Driver_Flush 0x0007
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#define Driver_Shutdown 0x0008
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/* Driver_Status subcalls */
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#define Get_Device_Status 0x0000
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#define Get_Config_Parameters 0x0001
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#define Get_Wait_Status 0x0002
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#define Get_Format_Options 0x0003
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#define Get_Partition_Map 0x0004
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/* Custom Driver_Control subcalls */
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#define Mount_URL 0x8080
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#define Switch_To_DOS_Order 0x8081
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/* Status list record for Get_DeviceStatus */
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typedef struct DeviceStatusRec {
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Word statusWord;
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LongWord numBlocks;
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} DeviceStatusRec;
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extern struct DIB dibs[NDIBS];
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extern struct DIBList dibList;
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extern void *gsosDP;
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void InitDIBs(void);
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Word DriverDispatch(Word callNum, struct GSOSDP *dp);
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#endif
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