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102 lines
3.5 KiB
102 lines
3.5 KiB
/***************************************************************************
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*
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* vsb.h
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*
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* Copyright (c) 1991-1996 Microsoft Corporation. All Rights Reserved.
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*
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* This code provides VDD support for SB 2.0 sound output, specifically:
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* DSP 2.01+ (excluding SB-MIDI port)
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* Mixer Chip CT1335 (not strictly part of SB 2.0, but apps seem to like it)
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* FM Chip OPL2 (a.k.a. Adlib)
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*
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***************************************************************************/
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/*****************************************************************************
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*
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* #defines
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*
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*****************************************************************************/
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#define VSBD_PATH TEXT("System\\CurrentControlSet\\Control\\VirtualDeviceDrivers\\SoundBlaster")
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#define LOOKAHEAD_VALUE TEXT("LookAhead")
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/*
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* Hardware and version information
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* In DOS terms: SET BLASTER=A220 I5 D1 T3
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*/
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#define SB_VERSION 0x201 // SB 2.0 (DSP 2.01+)
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#define SB_INTERRUPT 0x05 // Interrupt 5
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#define SB_DMA_CHANNEL 0x01 // DMA Channel 1
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#define NO_DEVICE_FOUND 0xFFFF // returned if no device found
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/*****************************************************************************
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*
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* Function Prototypes
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*
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*****************************************************************************/
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/*
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* General function prototypes
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*/
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void VddDbgOut(LPSTR lpszFormat, ...);
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BOOL WINAPI DllEntryPoint(HINSTANCE hInstance, DWORD reason, LPVOID reserved);
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BOOL InstallIoHook(HINSTANCE hInstance);
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void DeInstallIoHook(HINSTANCE hInstance);
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VOID VsbByteIn(WORD port, BYTE * data);
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VOID VsbByteOut(WORD port, BYTE data);
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VOID ResetAll(VOID);
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/*****************************************************************************
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*
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* Globals
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*
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*****************************************************************************/
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//
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// Definitions for MM api entry points. The functions will be linked
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// dynamically to avoid bringing winmm.dll in before wow32.
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//
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typedef MMRESULT (WINAPI* SETVOLUMEPROC)(HWAVEOUT, DWORD);
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typedef UINT (WINAPI* GETNUMDEVSPROC)(VOID);
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typedef MMRESULT (WINAPI* GETDEVCAPSPROC)(UINT, LPWAVEOUTCAPSW, UINT);
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typedef MMRESULT (WINAPI* OPENPROC)(LPHWAVEOUT, UINT, LPCWAVEFORMATEX, DWORD, DWORD, DWORD);
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typedef MMRESULT (WINAPI* RESETPROC)(HWAVEOUT);
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typedef MMRESULT (WINAPI* CLOSEPROC)(HWAVEOUT);
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typedef MMRESULT (WINAPI* GETPOSITIONPROC)(HWAVEOUT, LPMMTIME, UINT);
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typedef MMRESULT (WINAPI* WRITEPROC)(HWAVEOUT, LPWAVEHDR, UINT);
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typedef MMRESULT (WINAPI* PREPAREHEADERPROC)(HWAVEOUT, LPWAVEHDR, UINT);
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typedef MMRESULT (WINAPI* UNPREPAREHEADERPROC)(HWAVEOUT, LPWAVEHDR, UINT);
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/*****************************************************************************
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*
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* Debugging
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* Levels:
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* 1 - errors only
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* 2 - significant events
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* 3 - regular events
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* 4 - heaps o' information
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*
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*****************************************************************************/
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#if DBG
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extern int VddDebugLevel;
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#define dprintf( _x_ ) VddDbgOut _x_
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#define dprintf1( _x_ ) if (VddDebugLevel >= 1) VddDbgOut _x_
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#define dprintf2( _x_ ) if (VddDebugLevel >= 2) VddDbgOut _x_
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#define dprintf3( _x_ ) if (VddDebugLevel >= 3) VddDbgOut _x_
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#define dprintf4( _x_ ) if (VddDebugLevel >= 4) VddDbgOut _x_
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#else
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#define dprintf(x)
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#define dprintf1(x)
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#define dprintf2(x)
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#define dprintf3(x)
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#define dprintf4(x)
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#endif // DBG
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