82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
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/* --------------------------------------------------------------------
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** Module : wowmmcb.h
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**
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** Description : Interrupt callback stuff for Multi-Media.
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**
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** History: : Created 09-Nov-1992 by StephenE
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**
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** --------------------------------------------------------------------
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*/
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#ifndef WOWMMCB_H
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#define WOWMMCB_H
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/*
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** This header file will go through both 16 bit and 32 bit compilers.
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** In 16 bit land UNALIGNED is not required, on 32 bit land UNALIGNED
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** would have been #defined by the time this file was #included because
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** this file is always included after wow32.h. This means the following
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** #define is always a no-op with 16 bit compilers and ignored with
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** 32 bit compilers.
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*/
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#ifndef UNALIGNED
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#define UNALIGNED
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#endif
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/* --------------------------------------------------------------------
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** Hardware Interrupts:
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**
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** IRQ: Interrupt: ICA: Line: Description:
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** -------------------------------------------------------------------
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** IRQ0 0x08 0 0 Timer Tick every 18.2 times per second.
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** IRQ1 0x09 0 1 Keyboard service required.
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** IRQ2 0x0A 0 2 INT from slave 8259A.
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** IRQ8 0x70 1 0 Real time clock service.
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** IRQ9 0x71 1 1 Software redirected to IRQ2.
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** IRQ10 0x72 1 2 Reserved.
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** IRQ11 0x73 1 3 Reserved.
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** IRQ12 0x74 1 4 Reserved.
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** IRQ13 0x75 1 5 Numeric co-processor
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** IRQ14 0x76 1 6 Fixed disk controller
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** IRQ15 0x77 1 7 Reserved.
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** IRQ3 0x0B 0 3 Com2 service request.
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** IRQ4 0x0C 0 4 Com1 service request.
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** IRQ5 0x0D 0 5 Data request from LPT2:
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** IRQ6 0x0E 0 6 Floppy disk service required.
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** IRQ7 0x0F 0 7 Data request from LPT1:
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**
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** --------------------------------------------------------------------
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*/
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#define MULTIMEDIA_LINE 2
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#define MULTIMEDIA_ICA 1
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#define MULTIMEDIA_INTERRUPT 0x72
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#define CALLBACK_ARGS_SIZE 16
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typedef struct _CALLBACK_ARGS { /* cbargs */
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DWORD dwFlags; // Flags to identify the type of callback.
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DWORD dwFunctionAddr; // 16:16 address of the function to be called
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WORD wHandle; // The handle or ID of the device
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WORD wMessage; // The message to be passed to function
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DWORD dwInstance; // User data
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DWORD dwParam1; // Device data 1
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DWORD dwParam2; // Device data 2
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} CALLBACK_ARGS;
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typedef struct _CALLBACK_DATA { /* cbdata */
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WORD wRecvCount; // The number of interrupts received
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WORD wSendCount; // The number of interrupts sent
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CALLBACK_ARGS args[CALLBACK_ARGS_SIZE]; // Interrupt arguments
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WORD wIntsCount; // The number of interrupts received
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} CALLBACK_DATA;
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typedef CALLBACK_DATA FAR *VPCALLBACK_DATA; // 16:16 pointer type
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typedef CALLBACK_ARGS FAR *VPCALLBACK_ARGS; // 16:16 pointer type
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typedef CALLBACK_DATA UNALIGNED *PCALLBACK_DATA; // 0:32 pointer type
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typedef CALLBACK_ARGS UNALIGNED *PCALLBACK_ARGS; // 0:32 pointer type
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VOID FAR PASCAL Notify_Callback_Data( VPCALLBACK_DATA vpCallbackData );
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#endif
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