| 1 | /* $Id: header.h 142 2000-04-23 14:55:46Z ktk $ */
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| 2 |
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| 3 | /* SCCSID = %W% %E% */
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| 4 | /****************************************************************************
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| 5 | * *
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| 6 | * Copyright (c) IBM Corporation 1994 - 1997. *
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| 7 | * *
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| 8 | * The following IBM OS/2 source code is provided to you solely for the *
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| 9 | * the purpose of assisting you in your development of OS/2 device drivers. *
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| 10 | * You may use this code in accordance with the IBM License Agreement *
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| 11 | * provided in the IBM Device Driver Source Kit for OS/2. *
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| 12 | * *
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| 13 | ****************************************************************************/
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| 14 | /**@internal %W%
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| 15 | * Defines for the Device Driver Header
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| 16 | * @version %I%
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| 17 | * @context Unless otherwise noted, all interfaces are Ring-0, 16-bit,
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| 18 | * <stack context>.
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| 19 | * @history
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| 20 | *
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| 21 | */
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| 22 | #ifndef HEADER_INCLUDED
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| 23 | #define HEADER_INCLUDED
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| 24 |
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| 25 | #define DA_CHAR 0x8000 // Character PDD
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| 26 | #define DA_IDCSET 0x4000 // IDC entry point set
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| 27 | #define DA_BLOCK 0x2000 // Block device driver
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| 28 | #define DA_SHARED 0x1000 // Shared device
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| 29 | #define DA_NEEDOPEN 0x800 // Open/Close required
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| 30 |
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| 31 | #define DA_OS2DRVR 0x0080 // Standard OS/2 driver
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| 32 | #define DA_IOCTL2 0x0100 // Supports IOCTL2
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| 33 | #define DA_USESCAP 0x0180 // Uses Capabilities bits
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| 34 |
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| 35 | #define DA_CLOCK 8 // Clock device
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| 36 | #define DA_NULL 4 // NULL device
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| 37 | #define DA_STDOUT 2 // STDOUT device
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| 38 | #define DA_STDIN 1 // STDIN device
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| 39 |
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| 40 | #define DC_INITCPLT 0x10 // Supports Init Complete
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| 41 | #define DC_ADD 8 // ADD driver
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| 42 | #define DC_PARALLEL 4 // Supports parallel ports
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| 43 | #define DC_32BIT 2 // Supports 32-bit addressing
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| 44 | #define DC_IOCTL2 1 // Supports DosDevIOCtl2 and Shutdown (1C)
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| 45 |
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| 46 | typedef void (__near *PFNENTRY) (void);
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| 47 |
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| 48 | #pragma pack(1);
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| 49 |
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| 50 | typedef struct {
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| 51 | unsigned long ulNextDD;
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| 52 | unsigned short usAttribs;
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| 53 | PFNENTRY pfnStrategy;
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| 54 | PFNENTRY pfnIDC;
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| 55 | char abName[8];
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| 56 | unsigned long ulReserved[2];
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| 57 | unsigned long ulCaps;
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| 58 | } DEV_HEADER;
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| 59 |
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| 60 | #pragma pack();
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| 61 |
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| 62 | // pseudo-variable that points to device header
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| 63 | #define phdr ((DEV_HEADER *) 0)
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| 64 |
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| 65 | #endif
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