multimedia/midi.c

/* -*- tab-width: 8; c-basic-offset: 4 -*- */

/*
 * Sample MIDI Wine Driver for Open Sound System (basically Linux)
 *
 * Copyright 1994 	Martin Ayotte
 * Copyright 1998 	Luiz Otavio L. Zorzella (init procedures)
 * Copyright 1998/1999	Eric POUECH : 
 * 		98/7 	changes for making this MIDI driver work on OSS
 * 			current support is limited to MIDI ports of OSS systems
 * 		98/9	rewriting MCI code for MIDI
 * 		98/11 	splitted in midi.c and mcimidi.c
 */

#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "winuser.h"
#include "mmddk.h"
#include "oss.h"
#include "driver.h"
#include "debugtools.h"
#include "heap.h"
#include "ldt.h"

DEFAULT_DEBUG_CHANNEL(midi)

#ifdef HAVE_OSS_MIDI

#define MIDI_SEQ "/dev/sequencer"

typedef struct {
    int			state;
    DWORD		bufsize;
    LPMIDIOPENDESC	midiDesc;
    WORD		wFlags;
    LPMIDIHDR	 	lpQueueHdr;
    DWORD		dwTotalPlayed;
    unsigned char	incoming[3];
    unsigned char	incPrev;
    char		incLen;
    DWORD		startTime;
} WINE_MIDIIN;

typedef struct {
    int			state;
    DWORD		bufsize;
    LPMIDIOPENDESC	midiDesc;
    WORD		wFlags;
    LPMIDIHDR	 	lpQueueHdr;
    DWORD		dwTotalPlayed;
    void*		lpExtra;	 	/* according to port type (MIDI, FM...), extra data when needed */
} WINE_MIDIOUT;

static WINE_MIDIIN	MidiInDev [MAX_MIDIINDRV ];
static WINE_MIDIOUT	MidiOutDev[MAX_MIDIOUTDRV];

/* this is the total number of MIDI out devices found */
static	int 		MODM_NUMDEVS = 0;				
/* this is the number of FM synthetizers (index from 0 to 
   NUMFMSYNTHDEVS - 1) */
static	int		MODM_NUMFMSYNTHDEVS = 0;	
/* this is the number of Midi ports (index from NUMFMSYNTHDEVS to 
   NUMFMSYNTHDEVS + NUMMIDIDEVS - 1) */
static	int		MODM_NUMMIDIDEVS = 0;		

/* this is the total number of MIDI out devices found */
static	int 		MIDM_NUMDEVS = 0;				

static	int		midiSeqFD = -1;
static	int		numOpenMidiSeq = 0;
static	UINT		midiInTimerID = 0;
static	int		numStartedMidiIn = 0;

/* this structure holds pointers with information for each MIDI
 * out device found.
 */
static	LPMIDIOUTCAPSA	midiOutDevices[MAX_MIDIOUTDRV];

/* this structure holds pointers with information for each MIDI
 * in device found.
 */
static	LPMIDIINCAPSA	midiInDevices [MAX_MIDIINDRV];

/* 
 * FIXME : all tests on device ID for midXXX and modYYY are made against 
 * MAX_MIDIxxDRV (when they are made) but should be done against the actual
 * number of midi devices found...
 */

/*======================================================================*
 *                  Low level MIDI implementation			*
 *======================================================================*/

static int midiOpenSeq(void);
static int midiCloseSeq(void);

/**************************************************************************
 * 			unixToWindowsDeviceType  		[internal]
 *
 * return the Windows equivalent to a Unix Device Type
 *
 */
static	int 	MIDI_UnixToWindowsDeviceType(int type)
{
    /* MOD_MIDIPORT     output port 
     * MOD_SYNTH        generic internal synth 
     * MOD_SQSYNTH      square wave internal synth 
     * MOD_FMSYNTH      FM internal synth 
     * MOD_MAPPER       MIDI mapper
     */
    
    /* FIXME Is this really the correct equivalence from UNIX to 
       Windows Sound type */
    
    switch (type) {
    case SYNTH_TYPE_FM:     return MOD_FMSYNTH;
    case SYNTH_TYPE_SAMPLE: return MOD_SYNTH;
    case SYNTH_TYPE_MIDI:   return MOD_MIDIPORT;
    default:
	ERR("Cannot determine the type of this midi device. "
	    "Assuming FM Synth\n");
	return MOD_FMSYNTH;
    }
    return MOD_FMSYNTH;
}

/**************************************************************************
 * 			OSS_MidiInit				[internal]
 *
 * Initializes the MIDI devices information variables
 */
static	BOOL OSS_MidiInit(void)
{
    int 		i, status, numsynthdevs = 255, nummididevs = 255;
    struct synth_info 	sinfo;
    struct midi_info 	minfo;
    static	BOOL	bInitDone = FALSE;

    if (bInitDone)
	return TRUE;

    TRACE("Initializing the MIDI variables.\n");
    bInitDone = TRUE;
    
    /* try to open device */
    if (midiOpenSeq() == -1) {
	return TRUE;
    }
    
    /* find how many Synth devices are there in the system */
    status = ioctl(midiSeqFD, SNDCTL_SEQ_NRSYNTHS, &numsynthdevs);
    
    if (status == -1) {
	ERR("ioctl for nr synth failed.\n");
	midiCloseSeq();
	return TRUE;
    }

    if (numsynthdevs > MAX_MIDIOUTDRV) {
	ERR("MAX_MIDIOUTDRV (%d) was enough for the number of devices (%d). "
	    "Some FM devices will not be available.\n",MAX_MIDIOUTDRV,numsynthdevs);
	numsynthdevs = MAX_MIDIOUTDRV;
    }
    
    for (i = 0; i < numsynthdevs; i++) {
	LPMIDIOUTCAPSA	tmplpCaps;
	
	sinfo.device = i;
	status = ioctl(midiSeqFD, SNDCTL_SYNTH_INFO, &sinfo);
	if (status == -1) {
	    ERR("ioctl for synth info failed.\n");
	    midiCloseSeq();
	    return TRUE;
	}
	
	tmplpCaps = HeapAlloc(SystemHeap, 0, sizeof(MIDIOUTCAPSA));
	if (!tmplpCaps)
	    break;
	/* We also have the information sinfo.synth_subtype, not used here
	 */
	
	/* Manufac ID. We do not have access to this with soundcard.h
	 * Does not seem to be a problem, because in mmsystem.h only
	 * Microsoft's ID is listed.
	 */
	tmplpCaps->wMid = 0x00FF; 
	tmplpCaps->wPid = 0x0001; 	/* FIXME Product ID  */
	/* Product Version. We simply say "1" */
	tmplpCaps->vDriverVersion = 0x001; 
	strcpy(tmplpCaps->szPname, sinfo.name);
	
	tmplpCaps->wTechnology = MIDI_UnixToWindowsDeviceType(sinfo.synth_type);
	tmplpCaps->wVoices     = sinfo.nr_voices;
	
	/* FIXME Is it possible to know the maximum
	 * number of simultaneous notes of a soundcard ?
	 * I believe we don't have this information, but
	 * it's probably equal or more than wVoices
	 */
	tmplpCaps->wNotes      = sinfo.nr_voices;  
	
	/* FIXME Do we have this information?
	 * Assuming the soundcards can handle
	 * MIDICAPS_VOLUME and MIDICAPS_LRVOLUME but
	 * not MIDICAPS_CACHE.
	 */
	tmplpCaps->dwSupport   = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
	
	midiOutDevices[i] = tmplpCaps;
	
	if (sinfo.capabilities & SYNTH_CAP_INPUT) {
	    FIXME("Synthetizer support MIDI in. Not supported yet (please report)\n");
	}
	
	TRACE("name='%s', techn=%d voices=%d notes=%d support=%ld\n", 
	      tmplpCaps->szPname, tmplpCaps->wTechnology,
	      tmplpCaps->wVoices, tmplpCaps->wNotes, tmplpCaps->dwSupport);
	TRACE("OSS info: synth subtype=%d capa=%Xh\n", 
	      sinfo.synth_subtype, sinfo.capabilities);
    }
    
    /* find how many MIDI devices are there in the system */
    status = ioctl(midiSeqFD, SNDCTL_SEQ_NRMIDIS, &nummididevs);
    if (status == -1) {
	ERR("ioctl on nr midi failed.\n");
	midiCloseSeq();
	return TRUE;
    }
    
    /* FIXME: the two restrictions below could be loosen in some cases */
    if (numsynthdevs + nummididevs > MAX_MIDIOUTDRV) {
	ERR("MAX_MIDIOUTDRV was not enough for the number of devices. "
	    "Some MIDI devices will not be available.\n");
	nummididevs = MAX_MIDIOUTDRV - numsynthdevs;
    }
    
    if (nummididevs > MAX_MIDIINDRV) {
	ERR("MAX_MIDIINDRV (%d) was not enough for the number of devices (%d). "
	    "Some MIDI devices will not be available.\n",MAX_MIDIINDRV,nummididevs);
	nummididevs = MAX_MIDIINDRV;
    }
    
    for (i = 0; i < nummididevs; i++) {
	LPMIDIOUTCAPSA	tmplpOutCaps;
	LPMIDIINCAPSA	tmplpInCaps;
	
	minfo.device = i;
	status = ioctl(midiSeqFD, SNDCTL_MIDI_INFO, &minfo);
	if (status == -1) {
	    ERR("ioctl on midi info failed.\n");
	    midiCloseSeq();
	    return TRUE;
	}
	
	tmplpOutCaps = HeapAlloc(SystemHeap, 0, sizeof(MIDIOUTCAPSA));
	if (!tmplpOutCaps)
	    break;
	/* This whole part is somewhat obscure to me. I'll keep trying to dig
	   info about it. If you happen to know, please tell us. The very 
	   descritive minfo.dev_type was not used here.
	*/
	/* Manufac ID. We do not have access to this with soundcard.h
	   Does not seem to be a problem, because in mmsystem.h only
	   Microsoft's ID is listed */
	tmplpOutCaps->wMid = 0x00FF; 	
	tmplpOutCaps->wPid = 0x0001; 	/* FIXME Product ID */
	/* Product Version. We simply say "1" */
	tmplpOutCaps->vDriverVersion = 0x001; 
	strcpy(tmplpOutCaps->szPname, minfo.name);
	
	tmplpOutCaps->wTechnology = MOD_MIDIPORT; /* FIXME Is this right? */
	/* Does it make any difference? */
	tmplpOutCaps->wVoices     = 16;            
	/* Does it make any difference? */
	tmplpOutCaps->wNotes      = 16;
	/* FIXME Does it make any difference? */
	tmplpOutCaps->dwSupport   = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME; 
	
	midiOutDevices[numsynthdevs + i] = tmplpOutCaps;
	
	tmplpInCaps = HeapAlloc(SystemHeap, 0, sizeof(MIDIOUTCAPSA));
	if (!tmplpInCaps)
	    break;
	/* This whole part is somewhat obscure to me. I'll keep trying to dig
	   info about it. If you happen to know, please tell us. The very 
	   descritive minfo.dev_type was not used here.
	*/
	/* Manufac ID. We do not have access to this with soundcard.h
	   Does not seem to be a problem, because in mmsystem.h only
	   Microsoft's ID is listed */
	tmplpInCaps->wMid = 0x00FF; 	
	tmplpInCaps->wPid = 0x0001; 	/* FIXME Product ID */
	/* Product Version. We simply say "1" */
	tmplpInCaps->vDriverVersion = 0x001; 
	strcpy(tmplpInCaps->szPname, minfo.name);
	
	/* FIXME : could we get better information than that ? */
	tmplpInCaps->dwSupport   = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME; 
	
	midiInDevices[i] = tmplpInCaps;
	
	TRACE("name='%s' techn=%d voices=%d notes=%d support=%ld\n",
	      tmplpOutCaps->szPname, tmplpOutCaps->wTechnology, tmplpOutCaps->wVoices,
	      tmplpOutCaps->wNotes, tmplpOutCaps->dwSupport);
	TRACE("OSS info: midi dev-type=%d, capa=%d\n", 
	      minfo.dev_type, minfo.capabilities);
    }
    
    /* windows does not seem to differentiate Synth from MIDI devices */
    MODM_NUMFMSYNTHDEVS = numsynthdevs;
    MODM_NUMMIDIDEVS    = nummididevs;
    MODM_NUMDEVS        = numsynthdevs + nummididevs;
    
    MIDM_NUMDEVS        = nummididevs;
    
    /* close file and exit */
    midiCloseSeq();
    
    return TRUE;
}

/**************************************************************************
 * 			MIDI_NotifyClient			[internal]
 */
static DWORD MIDI_NotifyClient(UINT wDevID, WORD wMsg, 
			       DWORD dwParam1, DWORD dwParam2)
{
    DWORD 		dwCallBack;
    UINT 		uFlags;
    HANDLE		hDev;
    DWORD 		dwInstance;
    
    TRACE("wDevID = %04X wMsg = %d dwParm1 = %04lX dwParam2 = %04lX\n", 
	  wDevID, wMsg, dwParam1, dwParam2);
    
    switch (wMsg) {
    case MOM_OPEN:
    case MOM_CLOSE:
    case MOM_DONE:
	if (wDevID > MAX_MIDIOUTDRV) 
	    return MCIERR_INTERNAL;
	
	dwCallBack = MidiOutDev[wDevID].midiDesc->dwCallback;
	uFlags = MidiOutDev[wDevID].wFlags;
	hDev = MidiOutDev[wDevID].midiDesc->hMidi;
	dwInstance = MidiOutDev[wDevID].midiDesc->dwInstance;
	break;
	
    case MIM_OPEN:
    case MIM_CLOSE:
    case MIM_DATA:
    case MIM_ERROR:
	if (wDevID > MAX_MIDIINDRV) 
	    return MCIERR_INTERNAL;
	
	dwCallBack = MidiInDev[wDevID].midiDesc->dwCallback;
	uFlags = MidiInDev[wDevID].wFlags;
	hDev = MidiInDev[wDevID].midiDesc->hMidi;
	dwInstance = MidiInDev[wDevID].midiDesc->dwInstance;
	break;
    default:
	WARN("Unsupported MSW-MIDI message %u\n", wMsg);
	return MCIERR_INTERNAL;
    }
    
    return DriverCallback(dwCallBack, uFlags, hDev, wMsg, dwInstance, dwParam1, dwParam2) ?
	0 : MCIERR_INTERNAL;
}

/**************************************************************************
 * 			midiOpenSeq				[internal]
 */
static int midiOpenSeq(void)
{
    if (numOpenMidiSeq == 0) {
	midiSeqFD = open(MIDI_SEQ, O_RDWR, 0);
	if (midiSeqFD == -1) {
	    /* don't bark when we're facing a config without midi driver available */
	    if (errno != ENODEV && errno != ENXIO) {
		ERR("can't open '%s' ! (%d)\n", MIDI_SEQ, errno);
	    } else {
		TRACE("No midi device present\n");
	    }
	    return -1;
	}
	if (fcntl(midiSeqFD, F_SETFL, O_NONBLOCK) < 0) {
	    WARN("can't set sequencer fd to non blocking (%d)\n", errno);
	    close(midiSeqFD);
	    midiSeqFD = -1;
	    return -1;
	}
	ioctl(midiSeqFD, SNDCTL_SEQ_RESET);
    }
    numOpenMidiSeq++;
    return 0;
}

/**************************************************************************
 * 			midiCloseSeq				[internal]
 */
static int midiCloseSeq(void)
{
    if (--numOpenMidiSeq == 0) {
	close(midiSeqFD);
	midiSeqFD = -1;
    }
    return 0;
}

/* FIXME: this is a bad idea, it's even not static... */
SEQ_DEFINEBUF(1024);

/* FIXME: this is not reentrant, not static - because of global variable 
 * _seqbuf and al. 
 */
/**************************************************************************
 * 			seqbuf_dump				[internal]
 */
void seqbuf_dump(void)
{
    if (_seqbufptr) {
	if (write(midiSeqFD, _seqbuf, _seqbufptr) == -1) {
	    WARN("Can't write data to sequencer (%d/%d)!\n", 
		 midiSeqFD, errno);
	}
	/* FIXME:
	 *	in any case buffer is lost so that if many errors occur the buffer 
	 * will not overrun 
	 */
	_seqbufptr = 0;
    }
}

static void midReceiveChar(WORD wDevID, unsigned char value, DWORD dwTime)
{
    DWORD		toSend = 0;
    
    TRACE("Adding %02xh to %d[%d]\n", value, wDevID, MidiInDev[wDevID].incLen);
    
    if (wDevID >= MAX_MIDIINDRV) {
	WARN("bad devID\n");
	return;
    }
    if (MidiInDev[wDevID].state == 0) {
	TRACE("input not started, thrown away\n");
	return;
    }

    if (MidiInDev[wDevID].state & 2) { /* system exclusive */
	LPMIDIHDR	lpMidiHdr = MidiInDev[wDevID].lpQueueHdr;
	WORD 		sbfb = FALSE;

	if (lpMidiHdr) {
	    LPBYTE	lpData = lpMidiHdr->lpData;
	
	    lpData[lpMidiHdr->dwBytesRecorded++] = value;
	    if (lpMidiHdr->dwBytesRecorded == lpMidiHdr->dwBufferLength) {
		sbfb = TRUE;
	    } 
	}
	if (value == 0xF7) { /* then end */
	    MidiInDev[wDevID].state &= ~2;
	    sbfb = TRUE;
	}
	if (sbfb && lpMidiHdr != NULL) {
	    lpMidiHdr = MidiInDev[wDevID].lpQueueHdr;
	    lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
	    lpMidiHdr->dwFlags |= MHDR_DONE;
	    MidiInDev[wDevID].lpQueueHdr = (LPMIDIHDR)lpMidiHdr->lpNext;
	    if (MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD)lpMidiHdr, dwTime) != MMSYSERR_NOERROR) {
		WARN("Couldn't notify client\n");
	    }
	}
	return;
    }
    
#define IS_CMD(_x)	(((_x) & 0x80) == 0x80)
#define IS_SYS_CMD(_x)	(((_x) & 0xF0) == 0xF0)
    
    if (!IS_CMD(value) && MidiInDev[wDevID].incLen == 0) { /* try to reuse old cmd */
	if (IS_CMD(MidiInDev[wDevID].incPrev) && !IS_SYS_CMD(MidiInDev[wDevID].incPrev)) {
	    MidiInDev[wDevID].incoming[0] = MidiInDev[wDevID].incPrev;
	    MidiInDev[wDevID].incLen = 1;
	    TRACE("Reusing old command %02xh\n", MidiInDev[wDevID].incPrev);
	} else {
	    FIXME("error for midi-in, should generate MIM_ERROR notification:"
		  " prev=%02Xh, incLen=%02Xh\n", 
		  MidiInDev[wDevID].incPrev, MidiInDev[wDevID].incLen);
	    return;
	}
    }
    MidiInDev[wDevID].incoming[(int)(MidiInDev[wDevID].incLen++)] = value;
    if (MidiInDev[wDevID].incLen == 1 && !IS_SYS_CMD(MidiInDev[wDevID].incoming[0])) {
	/* store new cmd, just in case */
	MidiInDev[wDevID].incPrev = MidiInDev[wDevID].incoming[0];
    }
    
#undef IS_CMD(_x)
#undef IS_SYS_CMD(_x)
    
    switch (MidiInDev[wDevID].incoming[0] & 0xF0) {
    case MIDI_NOTEOFF:
    case MIDI_NOTEON:
    case MIDI_KEY_PRESSURE:
    case MIDI_CTL_CHANGE:
    case MIDI_PITCH_BEND:
	if (MidiInDev[wDevID].incLen == 3) {
	    toSend = (MidiInDev[wDevID].incoming[2] << 16) | 
		(MidiInDev[wDevID].incoming[1] <<  8) |
		(MidiInDev[wDevID].incoming[0] <<  0);
	}
	break;
    case MIDI_PGM_CHANGE:
    case MIDI_CHN_PRESSURE:
	if (MidiInDev[wDevID].incLen == 2) {
	    toSend = (MidiInDev[wDevID].incoming[1] <<  8) |
		(MidiInDev[wDevID].incoming[0] <<  0);
	}
	break;
    case MIDI_SYSTEM_PREFIX:
	if (MidiInDev[wDevID].incoming[0] == 0xF0) {
	    MidiInDev[wDevID].state |= 2;
	    MidiInDev[wDevID].incLen = 0;
	} else {		
	    if (MidiInDev[wDevID].incLen == 1) {
		toSend = (MidiInDev[wDevID].incoming[0] <<  0);
	    }
	}
	break;
    default:
	WARN("This shouldn't happen (%02X)\n", MidiInDev[wDevID].incoming[0]);
    }
    if (toSend != 0) {
	TRACE("Sending event %08lx\n", toSend);
	MidiInDev[wDevID].incLen =	0;
	dwTime -= MidiInDev[wDevID].startTime;
	if (MIDI_NotifyClient(wDevID, MIM_DATA, toSend, dwTime) != MMSYSERR_NOERROR) {
	    WARN("Couldn't notify client\n");
	}
    }
}

static VOID WINAPI midTimeCallback(HWND hwnd, UINT msg, UINT id, DWORD dwTime)
{
    unsigned	char		buffer[256];
    int				len, idx;
    
    TRACE("(%04X, %d, %d, %lu)\n", hwnd, msg, id, dwTime);
    
    len = read(midiSeqFD, buffer, sizeof(buffer));
    
    if ((len % 4) != 0) {
	WARN("bad length %d (%d)\n", len, errno);
	return;
    }
    
    for (idx = 0; idx < len; ) {
	if (buffer[idx] & 0x80) {
	    TRACE(
		  "reading<8> %02x %02x %02x %02x %02x %02x %02x %02x\n", 
		  buffer[idx + 0], buffer[idx + 1], 
		  buffer[idx + 2], buffer[idx + 3], 
		  buffer[idx + 4], buffer[idx + 5], 
		  buffer[idx + 6], buffer[idx + 7]);
	    idx += 8;
	} else {
	    switch (buffer[idx + 0]) {
	    case SEQ_WAIT:
	    case SEQ_ECHO:
		break;
	    case SEQ_MIDIPUTC:
		midReceiveChar(buffer[idx + 2], buffer[idx + 1], dwTime);
		break;
	    default:
		TRACE("Unsupported event %d\n", buffer[idx + 0]);
		break;
	    }
	    idx += 4;
	}				
    }
}

/**************************************************************************
 * 				midGetDevCaps			[internal]
 */
static DWORD midGetDevCaps(WORD wDevID, LPMIDIINCAPSA lpCaps, DWORD dwSize)
{
    LPMIDIINCAPSA	tmplpCaps;
    
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpCaps, dwSize);
    
    if (wDevID >= MIDM_NUMDEVS) {
	return MMSYSERR_BADDEVICEID;
    }
    if (lpCaps == NULL) {
	return MMSYSERR_INVALPARAM;
    }
    
    tmplpCaps = midiInDevices[wDevID];
    lpCaps->wMid = tmplpCaps->wMid;  
    lpCaps->wPid = tmplpCaps->wPid;  
    lpCaps->vDriverVersion = tmplpCaps->vDriverVersion;  
    strcpy(lpCaps->szPname, tmplpCaps->szPname);    
    if (dwSize == sizeof(MIDIINCAPSA)) { 
	/* we should run win 95, so make use of dwSupport */
	lpCaps->dwSupport = tmplpCaps->dwSupport;
    } else if (dwSize != sizeof(MIDIINCAPSA) - sizeof(DWORD)) {
	TRACE("bad size for lpCaps\n");
	return MMSYSERR_INVALPARAM;
    }
    
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midOpen					[internal]
 */
static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
    
    if (lpDesc == NULL) {
	WARN("Invalid Parameter !\n");
	return MMSYSERR_INVALPARAM;
    }
    /* FIXME :
     *	how to check that content of lpDesc is correct ?
     */
    if (wDevID >= MAX_MIDIINDRV) {
	WARN("wDevID too large (%u) !\n", wDevID);
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiInDev[wDevID].midiDesc != 0) {
	WARN("device already open !\n");
	return MMSYSERR_ALLOCATED;
    }
    if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) { 
	FIXME("No support for MIDI_IO_STATUS in dwFlags\n");
	return MMSYSERR_INVALFLAG;
    }
    
    if (midiOpenSeq() < 0) {
	return MMSYSERR_ERROR;
    }
    
    if (numStartedMidiIn++ == 0) {
	midiInTimerID = SetTimer(0, 0, 250, midTimeCallback);
	if (!midiInTimerID) {
	    numStartedMidiIn = 0;
	    WARN("Couldn't start timer for midi-in\n");
	    midiCloseSeq();
	    return MMSYSERR_ERROR;
	}
	TRACE("Starting timer (%u) for midi-in\n", midiInTimerID);
    }
    
    MidiInDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);

    MidiInDev[wDevID].lpQueueHdr = NULL;
    MidiInDev[wDevID].dwTotalPlayed = 0;
    MidiInDev[wDevID].bufsize = 0x3FFF;
    MidiInDev[wDevID].midiDesc = lpDesc;
    MidiInDev[wDevID].state = 0;
    MidiInDev[wDevID].incLen = 0;
    MidiInDev[wDevID].startTime = 0;

    if (MIDI_NotifyClient(wDevID, MIM_OPEN, 0L, 0L) != MMSYSERR_NOERROR) {
	WARN("can't notify client !\n");
	return MMSYSERR_INVALPARAM;
    }
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midClose				[internal]
 */
static DWORD midClose(WORD wDevID)
{
    int		ret = MMSYSERR_NOERROR;
    
    TRACE("(%04X);\n", wDevID);
    
    if (wDevID >= MAX_MIDIINDRV) {
	WARN("wDevID too bif (%u) !\n", wDevID);
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiInDev[wDevID].midiDesc == 0) {
	WARN("device not opened !\n");
	return MMSYSERR_ERROR;
    }
    if (MidiInDev[wDevID].lpQueueHdr != 0) {
	return MIDIERR_STILLPLAYING;
    }
    
    if (midiSeqFD == -1) {
	WARN("ooops !\n");
	return MMSYSERR_ERROR;
    }
    if (--numStartedMidiIn == 0) {
	TRACE("Stopping timer for midi-in\n");
	if (!KillTimer(0, midiInTimerID)) {
	    WARN("Couldn't stop timer for midi-in\n");
	}			
	midiInTimerID = 0;
    }
    midiCloseSeq();

    MidiInDev[wDevID].bufsize = 0;
    if (MIDI_NotifyClient(wDevID, MIM_CLOSE, 0L, 0L) != MMSYSERR_NOERROR) {
	WARN("can't notify client !\n");
	ret = MMSYSERR_INVALPARAM;
    }
    MidiInDev[wDevID].midiDesc = 0;
    return ret;
}

/**************************************************************************
 * 				midAddBuffer			[internal]
 */
static DWORD midAddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);
    
    if (lpMidiHdr == NULL)	return MMSYSERR_INVALPARAM;
    if (sizeof(MIDIHDR) > dwSize) return MMSYSERR_INVALPARAM;
    if (lpMidiHdr->dwBufferLength == 0) return MMSYSERR_INVALPARAM;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;
    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;
    
    if (MidiInDev[wDevID].lpQueueHdr == 0) {
	MidiInDev[wDevID].lpQueueHdr = lpMidiHdr;
    } else {
	LPMIDIHDR	ptr;
	
	for (ptr = MidiInDev[wDevID].lpQueueHdr; 
	     ptr->lpNext != 0; 
	     ptr = (LPMIDIHDR)ptr->lpNext);
	ptr->lpNext = (struct midihdr_tag*)lpMidiHdr;
    }
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				midPrepare			[internal]
 */
static DWORD midPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);
    
    if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 || 
	lpMidiHdr->lpData == 0 || lpMidiHdr->dwFlags != 0 || 
	lpMidiHdr->dwBufferLength >= 0x10000ul)
	return MMSYSERR_INVALPARAM;
    
    lpMidiHdr->lpNext = 0;
    lpMidiHdr->dwFlags |= MHDR_PREPARED;
    lpMidiHdr->dwBytesRecorded = 0;
    
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				midUnprepare			[internal]
 */
static DWORD midUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);
    
    if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 || 
	lpMidiHdr->lpData == 0 || lpMidiHdr->dwBufferLength >= 0x10000ul)
	return MMSYSERR_INVALPARAM;
    
    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;
    
    lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
    
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midReset				[internal]
 */
static DWORD midReset(WORD wDevID)
{
    DWORD		dwTime = GetTickCount();
    
    TRACE("(%04X);\n", wDevID);
    
    while (MidiInDev[wDevID].lpQueueHdr) {
	MidiInDev[wDevID].lpQueueHdr->dwFlags &= ~MHDR_INQUEUE;
	MidiInDev[wDevID].lpQueueHdr->dwFlags |= MHDR_DONE;
	/* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
	if (MIDI_NotifyClient(wDevID, MIM_LONGDATA, 
			      (DWORD)MidiInDev[wDevID].lpQueueHdr, dwTime) != MMSYSERR_NOERROR) {
	    WARN("Couldn't notify client\n");
	}
	MidiInDev[wDevID].lpQueueHdr = (LPMIDIHDR)MidiInDev[wDevID].lpQueueHdr->lpNext;
    }
    
    return MMSYSERR_NOERROR;
}


/**************************************************************************
 * 			midStart				[internal]
 */
static DWORD midStart(WORD wDevID)
{
    TRACE("(%04X);\n", wDevID);
    
    /* FIXME : should test value of wDevID */
    
    MidiInDev[wDevID].state = 1;
    MidiInDev[wDevID].startTime = GetTickCount();
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 *			midStop					[internal]
 */
static DWORD midStop(WORD wDevID)
{
    TRACE("(%04X);\n", wDevID);
    
    /* FIXME : should test value of wDevID */
    MidiInDev[wDevID].state = 0;
    return MMSYSERR_NOERROR;
}

/*-----------------------------------------------------------------------*/

typedef struct sVoice {
    int			note;			/* 0 means not used */
    int			channel;
    unsigned		cntMark : 30,
	                status : 2;
#define sVS_UNUSED	0
#define sVS_PLAYING	1
#define sVS_SUSTAINED	2
} sVoice;

typedef struct sChannel {
    int			program;
    
    int			bender;
    int			benderRange;
    /* controlers */
    int			bank;		/* CTL_BANK_SELECT */
    int			volume;		/* CTL_MAIN_VOLUME */
    int			balance;	/* CTL_BALANCE     */
    int			expression;	/* CTL_EXPRESSION  */
    int			sustain;	/* CTL_SUSTAIN     */
    
    unsigned char	nrgPmtMSB;	/* Non register Parameters */
    unsigned char	nrgPmtLSB;
    unsigned char	regPmtMSB;	/* Non register Parameters */
    unsigned char	regPmtLSB;
} sChannel;

typedef struct sFMextra {
    unsigned		counter;
    int			drumSetMask;
    sChannel		channel[16];	/* MIDI has only 16 channels */
    sVoice		voice[1];	/* dyn allocated according to sound card */
    /* do not append fields below voice[1] since the size of this structure 
     * depends on the number of available voices on the FM synth...
     */
} sFMextra;

extern	unsigned char midiFMInstrumentPatches[16 * 128];
extern	unsigned char midiFMDrumsPatches     [16 * 128];

/**************************************************************************
 * 			modFMLoad				[internal]
 */
static int modFMLoad(int dev)
{
    int				i;
    struct sbi_instrument	sbi;
    
    sbi.device = dev;
    sbi.key = FM_PATCH;
    
    memset(sbi.operators + 16, 0, 16);
    for (i = 0; i < 128; i++) {
	sbi.channel = i;
	memcpy(sbi.operators, midiFMInstrumentPatches + i * 16, 16);
	
	if (write(midiSeqFD, (char*)&sbi, sizeof(sbi)) == -1) {
	    WARN("Couldn't write patch for instrument %d (%d)!\n", sbi.channel, errno);
	    return -1;
	}
    } 
    for (i = 0; i < 128; i++) {
	sbi.channel = 128 + i;
	memcpy(sbi.operators, midiFMDrumsPatches + i * 16, 16);
	
	if (write(midiSeqFD, (char*)&sbi, sizeof(sbi)) == -1) {
	    WARN("Couldn't write patch for drum %d (%d)!\n", sbi.channel, errno);
	    return -1;
	}
    } 
    return 0;
}

/**************************************************************************
 * 			modFMReset				[internal]
 */
static	void modFMReset(WORD wDevID)
{
    sFMextra*	extra   = (sFMextra*)MidiOutDev[wDevID].lpExtra;
    sVoice* 	voice   = extra->voice;
    sChannel*	channel = extra->channel;
    int		i;
    
    for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
	if (voice[i].status != sVS_UNUSED) {
	    SEQ_STOP_NOTE(wDevID, i, voice[i].note, 64);
	}
	SEQ_KEY_PRESSURE(wDevID, i, 127, 0);
	SEQ_CONTROL(wDevID, i, SEQ_VOLMODE, VOL_METHOD_LINEAR);
	voice[i].note = 0;
	voice[i].channel = -1;
	voice[i].cntMark = 0;
	voice[i].status = sVS_UNUSED;
    }
    for (i = 0; i < 16; i++) {
	channel[i].program = 0;
	channel[i].bender = 8192;
	channel[i].benderRange = 2;
	channel[i].bank = 0;
	channel[i].volume = 127;
	channel[i].balance = 64;
	channel[i].expression = 0;	
	channel[i].sustain = 0;	
    }
    extra->counter = 0;
    extra->drumSetMask = 1 << 9; /* channel 10 is normally drums, sometimes 16 also */
    SEQ_DUMPBUF();
}

#define		IS_DRUM_CHANNEL(_xtra, _chn)	((_xtra)->drumSetMask & (1 << (_chn)))

/**************************************************************************
 * 				modGetDevCaps			[internal]
 */
static DWORD modGetDevCaps(WORD wDevID, LPMIDIOUTCAPSA lpCaps, 
			   DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpCaps, dwSize);
    if (wDevID == (WORD) MIDI_MAPPER) { 
	lpCaps->wMid = 0x00FF; 	/* Manufac ID */
	lpCaps->wPid = 0x0001; 	/* Product ID */
	lpCaps->vDriverVersion = 0x001; /* Product Version */
	strcpy(lpCaps->szPname, "MIDI Mapper (not functional yet)");
	/* FIXME Does it make any difference ? */
	lpCaps->wTechnology = MOD_FMSYNTH; 
	lpCaps->wVoices     = 14;       /* FIXME */
	lpCaps->wNotes      = 14;       /* FIXME */
	/* FIXME Does it make any difference ? */
	lpCaps->dwSupport   = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME; 
    } else {
	LPMIDIOUTCAPSA	tmplpCaps;
	
	if (wDevID >= MODM_NUMDEVS) {
	    TRACE("MAX_MIDIOUTDRV reached !\n");
	    return MMSYSERR_BADDEVICEID;
	}
	/* FIXME There is a way to do it so easily, but I'm too
	 * sleepy to think and I want to test
	 */
	
	tmplpCaps = midiOutDevices[wDevID];
	lpCaps->wMid = tmplpCaps->wMid;  
	lpCaps->wPid = tmplpCaps->wPid;  
	lpCaps->vDriverVersion = tmplpCaps->vDriverVersion;  
	strcpy(lpCaps->szPname, tmplpCaps->szPname);    
	lpCaps->wTechnology = tmplpCaps->wTechnology;
	lpCaps->wVoices = tmplpCaps->wVoices;  
	lpCaps->wNotes = tmplpCaps->wNotes;  
	lpCaps->dwSupport = tmplpCaps->dwSupport;
    }
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			modOpen					[internal]
 */
static DWORD modOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpDesc, dwFlags);
    if (lpDesc == NULL) {
	WARN("Invalid Parameter !\n");
	return MMSYSERR_INVALPARAM;
    }
    if (wDevID >= MAX_MIDIOUTDRV) {
	TRACE("MAX_MIDIOUTDRV reached !\n");
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiOutDev[wDevID].midiDesc != 0) {
	WARN("device already open !\n");
	return MMSYSERR_ALLOCATED;
    }
    if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) { 
	WARN("bad dwFlags\n");
	return MMSYSERR_INVALFLAG;
    }
    if (midiOutDevices[wDevID] == NULL) {
	TRACE("un-allocated wDevID\n");
	return MMSYSERR_BADDEVICEID;
    }
    
    MidiOutDev[wDevID].lpExtra = 0;
    
    switch (midiOutDevices[wDevID]->wTechnology) {
    case MOD_FMSYNTH:
	{
	    void*	extra = HeapAlloc(GetProcessHeap(), 0, 
					  sizeof(struct sFMextra) + 
					  sizeof(struct sVoice) * (midiOutDevices[wDevID]->wVoices - 1));
	    
	    if (extra == 0) {
		WARN("can't alloc extra data !\n");
		return MMSYSERR_NOMEM;
	    }
	    MidiOutDev[wDevID].lpExtra = extra;
	    if (midiOpenSeq() < 0) {
		MidiOutDev[wDevID].lpExtra = 0;
		HeapFree(GetProcessHeap(), 0, extra);
		return MMSYSERR_ERROR;
	    }
	    if (modFMLoad(wDevID) < 0) {
		midiCloseSeq();
		MidiOutDev[wDevID].lpExtra = 0;
		HeapFree(GetProcessHeap(), 0, extra);
		return MMSYSERR_ERROR;
	    }
	    modFMReset(wDevID);
	}
	break;
    case MOD_MIDIPORT:
	if (midiOpenSeq() < 0) {
	    return MMSYSERR_ALLOCATED;
	}
	break;
    default:
	WARN("Technology not supported (yet) %d !\n", 
	     midiOutDevices[wDevID]->wTechnology);
	return MMSYSERR_NOTENABLED;
    }
    
    MidiOutDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);

    MidiOutDev[wDevID].lpQueueHdr = NULL;
    MidiOutDev[wDevID].dwTotalPlayed = 0;
    MidiOutDev[wDevID].bufsize = 0x3FFF;
    MidiOutDev[wDevID].midiDesc = lpDesc;
    
    if (MIDI_NotifyClient(wDevID, MOM_OPEN, 0L, 0L) != MMSYSERR_NOERROR) {
	WARN("can't notify client !\n");
	return MMSYSERR_INVALPARAM;
    }
    TRACE("Succesful !\n");
    return MMSYSERR_NOERROR;
}


/**************************************************************************
 * 			modClose				[internal]
 */
static DWORD modClose(WORD wDevID)
{
    int	ret = MMSYSERR_NOERROR;

    TRACE("(%04X);\n", wDevID);
    
    if (MidiOutDev[wDevID].midiDesc == 0) {
	WARN("device not opened !\n");
	return MMSYSERR_ERROR;
    }
    /* FIXME: should test that no pending buffer is still in the queue for
     * playing */
    
    if (midiSeqFD == -1) {
	WARN("can't close !\n");
	return MMSYSERR_ERROR;
    }
    
    switch (midiOutDevices[wDevID]->wTechnology) {
    case MOD_FMSYNTH:
    case MOD_MIDIPORT:
	midiCloseSeq();
	break;
    default:
	WARN("Technology not supported (yet) %d !\n", 
	     midiOutDevices[wDevID]->wTechnology);
	return MMSYSERR_NOTENABLED;
    }
    
    if (MidiOutDev[wDevID].lpExtra != 0) {
        HeapFree(GetProcessHeap(), 0, MidiOutDev[wDevID].lpExtra);
	MidiOutDev[wDevID].lpExtra = 0;
    }
    
    MidiOutDev[wDevID].bufsize = 0;
    if (MIDI_NotifyClient(wDevID, MOM_CLOSE, 0L, 0L) != MMSYSERR_NOERROR) {
	WARN("can't notify client !\n");
	ret = MMSYSERR_INVALPARAM;
    }
    MidiOutDev[wDevID].midiDesc = 0;
    return ret;
}

/**************************************************************************
 * 			modData					[internal]
 */
static DWORD modData(WORD wDevID, DWORD dwParam)
{
    WORD	evt = LOBYTE(LOWORD(dwParam));
    WORD	d1  = HIBYTE(LOWORD(dwParam));
    WORD	d2  = LOBYTE(HIWORD(dwParam));
    
    TRACE("(%04X, %08lX);\n", wDevID, dwParam);
    
    if (midiSeqFD == -1) {
	WARN("can't play !\n");
	return MIDIERR_NODEVICE;
    }
    switch (midiOutDevices[wDevID]->wTechnology) {
    case MOD_FMSYNTH:
	/* FIXME:
	 *	- chorus depth controller is not used
	 */
	{
	    sFMextra*	extra   = (sFMextra*)MidiOutDev[wDevID].lpExtra;
	    sVoice* 	voice   = extra->voice;
	    sChannel*	channel = extra->channel;
	    int		chn = (evt & 0x0F);
	    int		i, nv;
	    
	    switch (evt & 0xF0) {
	    case MIDI_NOTEOFF:
		for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
				/* don't stop sustained notes */
		    if (voice[i].status == sVS_PLAYING && voice[i].channel == chn && voice[i].note == d1) {
			voice[i].status = sVS_UNUSED;
			SEQ_STOP_NOTE(wDevID, i, d1, d2);
		    }
		}
		break;	
	    case MIDI_NOTEON:
		if (d2 == 0) { /* note off if velocity == 0 */
		    for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			/* don't stop sustained notes */
			if (voice[i].status == sVS_PLAYING && voice[i].channel == chn && voice[i].note == d1) {
			    voice[i].status = sVS_UNUSED;
			    SEQ_STOP_NOTE(wDevID, i, d1, 64);
			}
		    }
		    break;
		}
		/* finding out in this order :
		 *	- an empty voice
		 *	- if replaying the same note on the same channel
		 *	- the older voice (LRU)
		 */
		for (i = nv = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
		    if (voice[i].status == sVS_UNUSED || 
			(voice[i].note == d1 && voice[i].channel == chn)) {
			nv = i;
			break;
		    }
		    if (voice[i].cntMark < voice[0].cntMark) {
			nv = i;
		    }
		}
		TRACE(
		      "playing on voice=%d, pgm=%d, pan=0x%02X, vol=0x%02X, "
		      "bender=0x%02X, note=0x%02X, vel=0x%02X\n", 
		      nv, channel[chn].program, 
		      channel[chn].balance, 
		      channel[chn].volume, 
		      channel[chn].bender, d1, d2);
		
		SEQ_SET_PATCH(wDevID, nv, IS_DRUM_CHANNEL(extra, chn) ? 
			      (128 + d1) : channel[chn].program);
		SEQ_BENDER_RANGE(wDevID, nv, channel[chn].benderRange * 100);
		SEQ_BENDER(wDevID, nv, channel[chn].bender);
		SEQ_CONTROL(wDevID, nv, CTL_PAN, channel[chn].balance);
		SEQ_CONTROL(wDevID, nv, CTL_EXPRESSION, channel[chn].expression);
#if 0	
		/* FIXME: does not really seem to work on my SB card and
		 * screws everything up... so lay it down
		 */
		SEQ_CONTROL(wDevID, nv, CTL_MAIN_VOLUME, channel[chn].volume);
#endif	
		SEQ_START_NOTE(wDevID, nv, d1, d2);
		voice[nv].status = channel[chn].sustain ? sVS_SUSTAINED : sVS_PLAYING;
		voice[nv].note = d1;
		voice[nv].channel = chn;
		voice[nv].cntMark = extra->counter++;
		break;
	    case MIDI_KEY_PRESSURE:
		for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
		    if (voice[i].status != sVS_UNUSED && voice[i].channel == chn && voice[i].note == d1) {
			SEQ_KEY_PRESSURE(wDevID, i, d1, d2);
		    }
		}
		break;
	    case MIDI_CTL_CHANGE:
		switch (d1) {
		case CTL_BANK_SELECT:	channel[chn].bank = d2;		break;
		case CTL_MAIN_VOLUME:	channel[chn].volume = d2;	break;
		case CTL_PAN:		channel[chn].balance = d2;	break;
		case CTL_EXPRESSION:	channel[chn].expression = d2;	break;
		case CTL_SUSTAIN:	channel[chn].sustain = d2;
		    if (d2) {
			for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			    if (voice[i].status == sVS_PLAYING && voice[i].channel == chn) {
				voice[i].status = sVS_SUSTAINED;
			    }
			}
		    } else {
			for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			    if (voice[i].status == sVS_SUSTAINED && voice[i].channel == chn) {
				voice[i].status = sVS_UNUSED;
				SEQ_STOP_NOTE(wDevID, i, voice[i].note, 64);
			    }
			}
		    }
		    break;
		case CTL_NONREG_PARM_NUM_LSB:	channel[chn].nrgPmtLSB = d2;	break;
		case CTL_NONREG_PARM_NUM_MSB:	channel[chn].nrgPmtMSB = d2;	break;
		case CTL_REGIST_PARM_NUM_LSB:	channel[chn].regPmtLSB = d2;	break;
		case CTL_REGIST_PARM_NUM_MSB:	channel[chn].regPmtMSB = d2;	break;		    
		case CTL_DATA_ENTRY:
		    switch ((channel[chn].regPmtMSB << 8) | channel[chn].regPmtLSB) {
		    case 0x0000: 
			if (channel[chn].benderRange != d2) {
			    channel[chn].benderRange = d2;
			    for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
				if (voice[i].channel == chn) {
				    SEQ_BENDER_RANGE(wDevID, i, channel[chn].benderRange);
				}
			    }
			}
			break;
			
		    case 0x7F7F:
			channel[chn].benderRange = 2;
			for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			    if (voice[i].channel == chn) {
				SEQ_BENDER_RANGE(wDevID, i, channel[chn].benderRange);
			    }
			}
			break;
		    default:
			TRACE("Data entry: regPmt=0x%02x%02x, nrgPmt=0x%02x%02x with %x\n",
			      channel[chn].regPmtMSB, channel[chn].regPmtLSB,
			      channel[chn].nrgPmtMSB, channel[chn].nrgPmtLSB,
			      d2);
			break;
		    }
		    break;
		    
		case 0x78: /* all sounds off */
		    /* FIXME: I don't know if I have to take care of the channel 
		     * for this control ?
		     */
		    for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			if (voice[i].status != sVS_UNUSED && voice[i].channel == chn) {
			    voice[i].status = sVS_UNUSED;
			    SEQ_STOP_NOTE(wDevID, i, voice[i].note, 64);
			}
		    }
		    break;
		case 0x7B: /* all notes off */
		    /* FIXME: I don't know if I have to take care of the channel 
		     * for this control ?
		     */
		    for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
			if (voice[i].status == sVS_PLAYING && voice[i].channel == chn) {
			    voice[i].status = sVS_UNUSED;
			    SEQ_STOP_NOTE(wDevID, i, voice[i].note, 64);
			}
		    }
		    break;	
		default:
		    TRACE("Dropping MIDI control event 0x%02x(%02x) on channel %d\n", 
			  d1, d2, chn);
		    break;
		}
		break;
	    case MIDI_PGM_CHANGE:
		channel[chn].program = d1;
		break;
	    case MIDI_CHN_PRESSURE:
		for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
		    if (voice[i].status != sVS_UNUSED && voice[i].channel == chn) {
			SEQ_KEY_PRESSURE(wDevID, i, voice[i].note, d1);
		    }
		}
		break;
	    case MIDI_PITCH_BEND:
		channel[chn].bender = (d2 << 7) + d1;
		for (i = 0; i < midiOutDevices[wDevID]->wVoices; i++) {
		    if (voice[i].channel == chn) {
			SEQ_BENDER(wDevID, i, channel[chn].bender);
		    }
		}
		break;
	    case MIDI_SYSTEM_PREFIX:
		switch (evt & 0x0F) {
		case 0x0F: 	/* Reset */
		    modFMReset(wDevID);
		    break; 
		default:
		    WARN("Unsupported (yet) system event %02x\n", evt & 0x0F);
		}
		break;
	    default:	
		WARN("Internal error, shouldn't happen (event=%08x)\n", evt & 0xF0);
		return MMSYSERR_NOTENABLED;
	    }
	}
	break;
    case MOD_MIDIPORT:
	{
	    int	dev = wDevID - MODM_NUMFMSYNTHDEVS;
	    if (dev < 0) {
		WARN("Internal error on devID (%u) !\n", wDevID);
		return MIDIERR_NODEVICE;
	    }
	    
	    switch (evt & 0xF0) {
	    case MIDI_NOTEOFF:
	    case MIDI_NOTEON:
	    case MIDI_KEY_PRESSURE:
	    case MIDI_CTL_CHANGE:
	    case MIDI_PITCH_BEND:
		SEQ_MIDIOUT(dev, evt);	
		SEQ_MIDIOUT(dev, d1);	
		SEQ_MIDIOUT(dev, d2); 	
		break;
	    case MIDI_PGM_CHANGE:
	    case MIDI_CHN_PRESSURE:
		SEQ_MIDIOUT(dev, evt);	
		SEQ_MIDIOUT(dev, d1);										
		break;	
	    case MIDI_SYSTEM_PREFIX:
		switch (evt & 0x0F) {
		case 0x00:	/* System Exclusive, don't do it on modData, 
				 * should require modLongData*/
		case 0x01:	/* Undefined */
		case 0x04:	/* Undefined. */
		case 0x05:	/* Undefined. */
		case 0x07:	/* End of Exclusive. */
		case 0x09:	/* Undefined. */
		case 0x0D:	/* Undefined. */
		    break;
		case 0x06:	/* Tune Request */
		case 0x08:	/* Timing Clock. */
		case 0x0A:	/* Start. */
		case 0x0B:	/* Continue */
		case 0x0C:	/* Stop */
		case 0x0E: 	/* Active Sensing. */
		    SEQ_MIDIOUT(dev, evt);	
		    break;
		case 0x0F: 	/* Reset */
				/* SEQ_MIDIOUT(dev, evt);
				   this other way may be better */
		    SEQ_MIDIOUT(dev, MIDI_SYSTEM_PREFIX);
		    SEQ_MIDIOUT(dev, 0x7e);
		    SEQ_MIDIOUT(dev, 0x7f);
		    SEQ_MIDIOUT(dev, 0x09);
		    SEQ_MIDIOUT(dev, 0x01);
		    SEQ_MIDIOUT(dev, 0xf7);
		    break;
		case 0x03:	/* Song Select. */
		    SEQ_MIDIOUT(dev, evt);	
		    SEQ_MIDIOUT(dev, d1);	  									
		case 0x02:	/* Song Position Pointer. */
		    SEQ_MIDIOUT(dev, evt);	
		    SEQ_MIDIOUT(dev, d1);
		    SEQ_MIDIOUT(dev, d2);
		}
		break;
	    }
	}
	break;
    default:
	WARN("Technology not supported (yet) %d !\n", 
	     midiOutDevices[wDevID]->wTechnology);
	return MMSYSERR_NOTENABLED;
    }
    
    SEQ_DUMPBUF();

    return MMSYSERR_NOERROR;
}

/**************************************************************************
 *		modLongData					[internal]
 */
static DWORD modLongData(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    int		count;
    LPBYTE	lpData;

    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);
    
    if (midiSeqFD == -1) {
	WARN("can't play !\n");
	return MIDIERR_NODEVICE;
    }
    
    lpData = lpMidiHdr->lpData;

    if (lpData == NULL) 
	return MIDIERR_UNPREPARED;
    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) 
	return MIDIERR_UNPREPARED;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE) 
	return MIDIERR_STILLPLAYING;
    lpMidiHdr->dwFlags &= ~MHDR_DONE;
    lpMidiHdr->dwFlags |= MHDR_INQUEUE;

    /* FIXME: MS doc is not 100% clear. Will lpData only contain system exclusive
     * data, or can it also contain raw MIDI data, to be split up and sent to 
     * modShortData() ?
     * If the latest is true, then the following WARNing will fire up
     */
    if (lpData[0] != 0xF0 || lpData[lpMidiHdr->dwBufferLength - 1] != 0xF7) {
	WARN("Alledged system exclusive buffer is not correct\n\tPlease report with MIDI file\n");
    }

    TRACE("dwBufferLength=%lu !\n", lpMidiHdr->dwBufferLength);
    TRACE("                 %02X %02X %02X ... %02X %02X %02X\n",
	  lpData[0], lpData[1], lpData[2], lpData[lpMidiHdr->dwBufferLength-3], 
	  lpData[lpMidiHdr->dwBufferLength-2], lpData[lpMidiHdr->dwBufferLength-1]);

    switch (midiOutDevices[wDevID]->wTechnology) {
    case MOD_FMSYNTH:
	/* FIXME: I don't think there is much to do here */
	break;
    case MOD_MIDIPORT:
	if (lpData[0] != 0xF0) {
	    /* Send end of System Exclusive */
	    SEQ_MIDIOUT(wDevID - MODM_NUMFMSYNTHDEVS, 0xF0);
	    WARN("Adding missing 0xF0 marker at the begining of "
		 "system exclusive byte stream\n");
	}
	for (count = 0; count < lpMidiHdr->dwBytesRecorded; count++) {
	    SEQ_MIDIOUT(wDevID - MODM_NUMFMSYNTHDEVS, lpData[count]);	
	}
	if (lpData[count - 1] != 0xF7) {
	    /* Send end of System Exclusive */
	    SEQ_MIDIOUT(wDevID - MODM_NUMFMSYNTHDEVS, 0xF7);
	    WARN("Adding missing 0xF7 marker at the end of "
		 "system exclusive byte stream\n");
	}
	SEQ_DUMPBUF();
	break;
    default:
	WARN("Technology not supported (yet) %d !\n", 
	     midiOutDevices[wDevID]->wTechnology);
	return MMSYSERR_NOTENABLED;
    }
    
    lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
    lpMidiHdr->dwFlags |= MHDR_DONE;
    if (MIDI_NotifyClient(wDevID, MOM_DONE, (DWORD)lpMidiHdr, 0L) != MMSYSERR_NOERROR) {
	WARN("can't notify client !\n");
	return MMSYSERR_INVALPARAM;
    }
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			modPrepare				[internal]
 */
static DWORD modPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);
    
    if (midiSeqFD == -1) {
	WARN("can't prepare !\n");
	return MMSYSERR_NOTENABLED;
    }

    /* MS doc says taht dwFlags must be set to zero, but (kinda funny) MS mciseq drivers 
     * asks to prepare MIDIHDR which dwFlags != 0.
     * So at least check for the inqueue flag
     */
    if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0 || 
	lpMidiHdr->lpData == 0 || (lpMidiHdr->dwFlags & MHDR_INQUEUE) != 0 || 
	lpMidiHdr->dwBufferLength >= 0x10000ul) {
	WARN("%p %p %08lx %d/%ld\n", lpMidiHdr, lpMidiHdr->lpData, 
	           lpMidiHdr->dwFlags, sizeof(MIDIHDR), dwSize);
	return MMSYSERR_INVALPARAM;
    }
    
    lpMidiHdr->lpNext = 0;
    lpMidiHdr->dwFlags |= MHDR_PREPARED;
    lpMidiHdr->dwFlags &= ~MHDR_DONE;
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				modUnprepare			[internal]
 */
static DWORD modUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    TRACE("(%04X, %p, %08lX);\n", wDevID, lpMidiHdr, dwSize);

    if (midiSeqFD == -1) {
	WARN("can't unprepare !\n");
	return MMSYSERR_NOTENABLED;
    }

    if (dwSize < sizeof(MIDIHDR) || lpMidiHdr == 0)
	return MMSYSERR_INVALPARAM;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
	return MIDIERR_STILLPLAYING;
    lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			modReset				[internal]
 */
static DWORD modReset(WORD wDevID)
{
    unsigned chn;
    
    TRACE("(%04X);\n", wDevID);

    /* stop all notes */
    /* FIXME: check if 0x78B0 is channel dependant or not. I coded it so that 
     * it's channel dependent...
     */
    for (chn = 0; chn < 16; chn++) {
	/* turn off every note */
	modData(wDevID, 0x7800 | MIDI_CTL_CHANGE | chn);
	/* remove sustain on all channels */
	modData(wDevID, (CTL_SUSTAIN << 8) | MIDI_CTL_CHANGE | chn);
    }
    /* FIXME: the LongData buffers must also be returned to the app */
    return MMSYSERR_NOERROR;
}

#endif /* HAVE_OSS_MIDI */

/*======================================================================*
 *                  	    MIDI entry points 				*
 *======================================================================*/

/**************************************************************************
 * 			OSS_midMessage			[sample driver]
 */
DWORD WINAPI OSS_midMessage(UINT wDevID, UINT wMsg, DWORD dwUser, 
			    DWORD dwParam1, DWORD dwParam2)
{
    TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n", 
	  wDevID, wMsg, dwUser, dwParam1, dwParam2);
    switch (wMsg) {
#ifdef HAVE_OSS_MIDI
    case DRVM_INIT:
	OSS_MidiInit();
	/* fall thru */
    case DRVM_EXIT:
    case DRVM_ENABLE:
    case DRVM_DISABLE:
	/* FIXME: Pretend this is supported */
	return 0;
    case MIDM_OPEN:
	return midOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
    case MIDM_CLOSE:
	return midClose(wDevID);
    case MIDM_ADDBUFFER:
	return midAddBuffer(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_PREPARE:
	return midPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_UNPREPARE:
	return midUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_GETDEVCAPS:
	return midGetDevCaps(wDevID, (LPMIDIINCAPSA)dwParam1,dwParam2);
    case MIDM_GETNUMDEVS:
	return MIDM_NUMDEVS; 
    case MIDM_RESET:
	return midReset(wDevID);
    case MIDM_START:
	return midStart(wDevID);
    case MIDM_STOP:
	return midStop(wDevID);
#endif
    default:
	TRACE("Unsupported message\n");
    }
    return MMSYSERR_NOTSUPPORTED;
}

/**************************************************************************
 * 				OSS_modMessage		[sample driver]
 */
DWORD WINAPI OSS_modMessage(UINT wDevID, UINT wMsg, DWORD dwUser, 
			    DWORD dwParam1, DWORD dwParam2)
{
    TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n", 
	  wDevID, wMsg, dwUser, dwParam1, dwParam2);

    switch (wMsg) {
#ifdef HAVE_OSS_MIDI
    case DRVM_INIT:
	OSS_MidiInit();
	/* fall thru */
    case DRVM_EXIT:
    case DRVM_ENABLE:
    case DRVM_DISABLE:
	/* FIXME: Pretend this is supported */
	return 0;
    case MODM_OPEN:
	return modOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
    case MODM_CLOSE:
	return modClose(wDevID);
    case MODM_DATA:
	return modData(wDevID, dwParam1);
    case MODM_LONGDATA:
	return modLongData(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_PREPARE:
	return modPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_UNPREPARE:
	return modUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_GETDEVCAPS:
	return modGetDevCaps(wDevID, (LPMIDIOUTCAPSA)dwParam1, dwParam2);
    case MODM_GETNUMDEVS:
	return MODM_NUMDEVS;
    case MODM_GETVOLUME:
	return 0;
    case MODM_SETVOLUME:
	return 0;
    case MODM_RESET:
	return modReset(wDevID);
#endif
    default:
	TRACE("Unsupported message\n");
    }
    return MMSYSERR_NOTSUPPORTED;
}

/*-----------------------------------------------------------------------*/