| 1 | /* $Id: idc_vdd.h,v 1.1 2000/04/23 14:55:16 ktk Exp $ */
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| 2 |
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| 3 | #ifndef VDDIDC_INCLUDED
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| 4 | #define VDDIDC_INCLUDED
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| 5 |
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| 6 | #ifdef __cplusplus
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| 7 | extern "C" {
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| 8 | #endif
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| 9 |
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| 10 |
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| 11 | #pragma pack (1) // Force byte structure alignment
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| 12 |
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| 13 | #ifndef __IBMC__ // Following is only for the PDD and VDD
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| 14 | ULONG FAR pascal IDCEntry_VDD (ULONG ulFunc, ULONG ul1, ULONG ul2); // ASM
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| 15 | #endif
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| 16 |
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| 17 | typedef enum
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| 18 | {
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| 19 | IDCOPENPDD,
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| 20 | IDCQUERYPROTOCOL,
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| 21 | IDCASSIGNHANDLE,
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| 22 | IDCOPENDEVICE,
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| 23 | IDCCLOSEDEVICE,
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| 24 | IDCGETIOPORTINFO,
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| 25 | IDCTRUSTEDOPEN
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| 26 | } IDCFUNCS;
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| 27 |
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| 28 | #pragma pack ()
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| 29 |
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| 30 | //
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| 31 | // Define ulFuncs for communicaiton between
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| 32 | // PDD and VDD IDC entrypoints.
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| 33 | // Also define version constant to indicate the highest
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| 34 | // functions we will send and can receive.
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| 35 | //
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| 36 |
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| 37 | #define PDDFUNC_OPENPDD 0 // Open request sent to PDD by OS
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| 38 | #define PDDFUNC_QUERYPROTOCOL 1 // Insure PDD & VDD are of same level
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| 39 | #define PDDFUNC_ASSIGNHANDLE 2 // Inform PDD of its IDC handle
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| 40 | #define PDDFUNC_OPENDEVICE 3 // Request adapter owndership
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| 41 | #define PDDFUNC_CLOSEDEVICE 4 // Relinquish HW back to PDD control
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| 42 | #define PDDFUNC_GETIOPORTINFO 5 // Provide address of port I/O info
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| 43 | #define PDDFUNC_TRUSTEDOPEN 6 // Trusted Open to PDD
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| 44 |
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| 45 | // Inter-Device Communication (IDC) function
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| 46 | // codes for calls from PDD
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| 47 | #define VDDFUNC_INTERRUPT 0 // (not used)
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| 48 | #define VDDFUNC_CLOSE 1 // Audio PDD is done with hardware
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| 49 | #define VDDFUNC_SHUTDOWN 2 // PDD informs VDD of shutdown
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| 50 |
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| 51 | #define IDC_PROTOCOL_LEVEL 0xDEADBEEF
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| 52 | #define NUMIORANGES 4 // 4 io ranges on the card WSS,OPL3,SB and SYNTH
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| 53 |
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| 54 | // PDD returns a pointer to ADAPTERINFO data structure
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| 55 | // to describe its hardware.
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| 56 | typedef struct
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| 57 | {
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| 58 | ULONG ulPort;
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| 59 | ULONG ulRange;
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| 60 | } IORANGE;
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| 61 |
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| 62 | typedef struct
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| 63 | {
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| 64 | USHORT usIRQLevel;
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| 65 | USHORT usDMALevel;
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| 66 | ULONG ulNumPorts; // number of port ranges
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| 67 | IORANGE Range[NUMIORANGES]; // Unbounded array holding IORANGEs
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| 68 | } ADAPTERINFO, *PADAPTERINFO;
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| 69 |
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| 70 | extern ULONG pLincodec;
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| 71 | extern ADAPTERINFO __far * pfcodec_info;
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| 72 | extern ADAPTERINFO codec_info;
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| 73 | extern USHORT usInUseCount;
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| 74 | extern USHORT usVDDHasHardware;
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| 75 |
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| 76 | #ifdef __cplusplus
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| 77 | }
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| 78 | #endif
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| 79 |
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| 80 | #endif
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