source: cmedia/trunk/Drv16/fmsynth.cpp

/* SCCSID = %W% %E% */
/****************************************************************************
 *                                                                          *
 * Copyright (c) IBM Corporation 1994 - 1997.                               *
 *                                                                          *
 * The following IBM OS/2 source code is provided to you solely for the     *
 * the purpose of assisting you in your development of OS/2 device drivers. *
 * You may use this code in accordance with the IBM License Agreement       *
 * provided in the IBM Device Driver Source Kit for OS/2.                   *
 *                                                                          *
 ****************************************************************************/
/**@internal %W%
 *  FMSYNTH object implementation.
 * @version %I%
 * @context
 *  Unless otherwise noted, all interfaces are Ring-0, 16-bit, kernel stack.
 * @notes
 * @history
 */

#include "fmsynth.hpp"                 // Object definition.
#include "timer.hpp"                   // Object definition.
#include "stream.hpp"                  // Prereq to includeing midistrm.h
#include "midistrm.hpp"                // Object definition.

//extern "C" BOOL FMInit();


/* FMSYNTH constructor
;
;  portNum - I/O port number through which the FMSYNTH interface
;       operates; normally 0x388.
*/
/*
FMSYNTH::FMSYNTH( USHORT portNum, TIMER* pTimer ) :
   MIDIAUDIO ( AUDIOHW_FMSYNTH_PLAY, pTimer ),
   _port ( portNum )
{
   FMInit();
}
*/


/* writeByte - Write one byte to the MIDI hardware.
;
*/
//int FMSYNTH::writeByte( BYTE /*b*/ )  { return 0; }


/* readByte - Read one byte from MIDI hardware.
;
;  FMSYNTH is a write only technology so this always returns error (-1).
*/
//int FMSYNTH::readByte( void ) { return -1; }


// Initialize the board at task time
//int FMSYNTH::Initialize(void) { return FMInit(); }



// Pause the operation
int FMSYNTH::Pause(STREAM *)
{
   getTimer()->Pause();
   shut_off_all();
   return 0;
}

// Resume the operation
int FMSYNTH::Resume(STREAM *)
{
   return getTimer()->Resume();
}

int FMSYNTH::Start(STREAM *)
{
   return getTimer()->Start();
}

int FMSYNTH::Stop(STREAM *)
{
   getTimer()->Stop();
   shut_off_all();
   return 0;
}