| 1 | /* $Id: mpu401.hpp,v 1.3 2000/05/28 16:50:40 sandervl Exp $ */
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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 | * MPU_401 object definition.
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| 16 | * @version %I%
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| 17 | * @context
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| 18 | * Unless otherwise noted, all interfaces are Ring-0, 16-bit, kernel stack.
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| 19 | * @notes
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| 20 | * @history
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| 21 | */
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| 22 |
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| 23 | #ifndef MPU401_INCLUDED
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| 24 | #define MPU401_INCLUDED
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| 25 |
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| 26 | #ifndef OS2_INCLUDED
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| 27 | #define INCL_NOPMAPI
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| 28 | #include <os2.h>
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| 29 | #endif
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| 30 |
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| 31 | #include "maudio.hpp"
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| 32 | #include "irq.hpp"
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| 33 |
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| 34 | #define DSR 0x80
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| 35 | #define DRR 0x40
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| 36 |
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| 37 | unsigned MPUcommand(USHORT, BYTE);
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| 38 | // sends byte to an I/O address. Returns non-zero if error
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| 39 |
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| 40 | class MPU_401 : public MIDIAUDIO {
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| 41 | int fOpenedSend; // TRUE if opened for RTMIDI Send (recording)
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| 42 | int fOpenedRecv; // TRUE if opened for RTMIDI Receive (playback)
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| 43 | BYTE n; // This is the nth MPU-401
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| 44 | int _iAllNotesOff(void); // function to turn all notes off
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| 45 | ULONG midiInStreamId;
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| 46 | ULONG midiOutStreamId;
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| 47 | public:
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| 48 | // Constructor.
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| 49 | MPU_401( TIMER* pTimer );
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| 50 |
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| 51 | static void processIrq(unsigned long streamid);
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| 52 |
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| 53 | // Standard MIDI channel commands.
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| 54 | virtual void noteOff( BYTE mchan, BYTE note, BYTE velocity );
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| 55 | virtual void noteOn( BYTE mchan, BYTE note, BYTE velocity );
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| 56 | virtual void polyphonicPressure( BYTE mchan, BYTE note, BYTE value );
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| 57 | virtual void controlChange( BYTE mchan, BYTE control_number, BYTE value );
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| 58 | virtual void programChange( BYTE mchan, BYTE program_number );
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| 59 | virtual void channelPressure( BYTE mchan, BYTE value );
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| 60 | virtual void pitchBend( BYTE mchan, BYTE value_lsb, BYTE value_msb );
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| 61 |
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| 62 | // Direct byte level IO... used for handling System Common & Exclusive
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| 63 | // commands, as well as for RTMIDI
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| 64 | virtual int writeByte(BYTE b);
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| 65 | virtual int readByte(void);
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| 66 |
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| 67 | // Stream control.
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| 68 | virtual int Reset(STREAM *stream);
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| 69 | virtual int Start(STREAM *stream);
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| 70 | virtual int Stop(STREAM *stream);
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| 71 | virtual int Pause(STREAM *stream);
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| 72 | virtual int Resume(STREAM *stream);
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| 73 |
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| 74 | // Services provided to the RTMIDI interface.
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| 75 | virtual USHORT RTMIDI_OpenReceive(void);
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| 76 | virtual USHORT RTMIDI_OpenSend(void);
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| 77 | virtual USHORT RTMIDI_CloseReceive(void);
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| 78 | virtual USHORT RTMIDI_CloseSend(void);
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| 79 | };
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| 80 |
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| 81 | #endif
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