Sweden-Number/multimedia/mmaux.c

/*
 * Sample AUXILARY Wine Driver
 *
 * Copyright 1994 Martin Ayotte
 */

#define EMULATE_SB16

#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include "windef.h"
#include "driver.h"
#include "mmddk.h"
#include "oss.h"

#include "debugtools.h"

DEFAULT_DEBUG_CHANNEL(mmaux)

#define MIXER_DEV "/dev/mixer"

static int	NumDev = 6;

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


/**************************************************************************
 * 				AUX_GetDevCaps			[internal]
 */
static DWORD AUX_GetDevCaps(WORD wDevID, LPAUXCAPS16 lpCaps, DWORD dwSize)
{
#ifdef HAVE_OSS
	int 	mixer,volume;
	
	TRACE("(%04X, %p, %lu);\n", wDevID, lpCaps, dwSize);
	if (lpCaps == NULL) return MMSYSERR_NOTENABLED;
	if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
		WARN("mixer device not available !\n");
		return MMSYSERR_NOTENABLED;
	}
	if (ioctl(mixer, SOUND_MIXER_READ_LINE, &volume) == -1) {
		close(mixer);
		WARN("unable read mixer !\n");
		return MMSYSERR_NOTENABLED;
	}
	close(mixer);
#ifdef EMULATE_SB16
	lpCaps->wMid = 0x0002;
	lpCaps->vDriverVersion = 0x0200;
	lpCaps->dwSupport = AUXCAPS_VOLUME | AUXCAPS_LRVOLUME;
	switch (wDevID) {
	case 0:
		lpCaps->wPid = 0x0196;
		strcpy(lpCaps->szPname, "SB16 Aux: Wave");
		lpCaps->wTechnology = AUXCAPS_AUXIN;
		break;
	case 1:
		lpCaps->wPid = 0x0197;
		strcpy(lpCaps->szPname, "SB16 Aux: Midi Synth");
		lpCaps->wTechnology = AUXCAPS_AUXIN;
		break;
	case 2:
		lpCaps->wPid = 0x0191;
		strcpy(lpCaps->szPname, "SB16 Aux: CD");
		lpCaps->wTechnology = AUXCAPS_CDAUDIO;
		break;
	case 3:
		lpCaps->wPid = 0x0192;
		strcpy(lpCaps->szPname, "SB16 Aux: Line-In");
		lpCaps->wTechnology = AUXCAPS_AUXIN;
		break;
	case 4:
		lpCaps->wPid = 0x0193;
		strcpy(lpCaps->szPname, "SB16 Aux: Mic");
		lpCaps->wTechnology = AUXCAPS_AUXIN;
		break;
	case 5:
		lpCaps->wPid = 0x0194;
		strcpy(lpCaps->szPname, "SB16 Aux: Master");
		lpCaps->wTechnology = AUXCAPS_AUXIN;
		break;
	}
#else
	lpCaps->wMid = 0xAA;
	lpCaps->wPid = 0x55;
	lpCaps->vDriverVersion = 0x0100;
	strcpy(lpCaps->szPname, "Generic Linux Auxiliary Driver");
	lpCaps->wTechnology = AUXCAPS_CDAUDIO;
	lpCaps->dwSupport = AUXCAPS_VOLUME | AUXCAPS_LRVOLUME;
#endif
	return MMSYSERR_NOERROR;
#else
	return MMSYSERR_NOTENABLED;
#endif
}


/**************************************************************************
 * 				AUX_GetVolume			[internal]
 */
static DWORD AUX_GetVolume(WORD wDevID, LPDWORD lpdwVol)
{
#ifdef HAVE_OSS
	int 	mixer, volume, left, right, cmd;
	
	TRACE("(%04X, %p);\n", wDevID, lpdwVol);
	if (lpdwVol == NULL) return MMSYSERR_NOTENABLED;
	if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
		WARN("mixer device not available !\n");
		return MMSYSERR_NOTENABLED;
	}
	switch(wDevID) {
	case 0:
		TRACE("SOUND_MIXER_READ_PCM !\n");
		cmd = SOUND_MIXER_READ_PCM;
		break;
	case 1:
		TRACE("SOUND_MIXER_READ_SYNTH !\n");
		cmd = SOUND_MIXER_READ_SYNTH;
		break;
	case 2:
		TRACE("SOUND_MIXER_READ_CD !\n");
		cmd = SOUND_MIXER_READ_CD;
		break;
	case 3:
		TRACE("SOUND_MIXER_READ_LINE !\n");
		cmd = SOUND_MIXER_READ_LINE;
		break;
	case 4:
		TRACE("SOUND_MIXER_READ_MIC !\n");
		cmd = SOUND_MIXER_READ_MIC;
		break;
	case 5:
		TRACE("SOUND_MIXER_READ_VOLUME !\n");
		cmd = SOUND_MIXER_READ_VOLUME;
		break;
	default:
		WARN("invalid device id=%04X !\n", wDevID);
		return MMSYSERR_NOTENABLED;
	}
	if (ioctl(mixer, cmd, &volume) == -1) {
		WARN("unable read mixer !\n");
		return MMSYSERR_NOTENABLED;
	}
	close(mixer);
	left  = LOBYTE(LOWORD(volume));
	right = HIBYTE(LOWORD(volume));
	TRACE("left=%d right=%d !\n", left, right);
	*lpdwVol = MAKELONG((left * 0xFFFFL) / 100, (right * 0xFFFFL) / 100);
	return MMSYSERR_NOERROR;
#else
	return MMSYSERR_NOTENABLED;
#endif
}

/**************************************************************************
 * 				AUX_SetVolume			[internal]
 */
static DWORD AUX_SetVolume(WORD wDevID, DWORD dwParam)
{
#ifdef HAVE_OSS
	int 		mixer;
	int		volume, left, right;
	int		cmd;

	TRACE("(%04X, %08lX);\n", wDevID, dwParam);

	left   = (LOWORD(dwParam) * 100) >> 16;
	right  = (HIWORD(dwParam) * 100) >> 16;
	volume = (right << 8) | left;

	if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
		WARN("mixer device not available !\n");
		return MMSYSERR_NOTENABLED;
	}

	switch(wDevID) {
	case 0:
		TRACE("SOUND_MIXER_WRITE_PCM !\n");
		cmd = SOUND_MIXER_WRITE_PCM;
		break;
	case 1:
		TRACE("SOUND_MIXER_WRITE_SYNTH !\n");
		cmd = SOUND_MIXER_WRITE_SYNTH;
		break;
	case 2:
		TRACE("SOUND_MIXER_WRITE_CD !\n");
		cmd = SOUND_MIXER_WRITE_CD;
		break;
	case 3:
		TRACE("SOUND_MIXER_WRITE_LINE !\n");
		cmd = SOUND_MIXER_WRITE_LINE;
		break;
	case 4:
		TRACE("SOUND_MIXER_WRITE_MIC !\n");
		cmd = SOUND_MIXER_WRITE_MIC;
		break;
	case 5:
		TRACE("SOUND_MIXER_WRITE_VOLUME !\n");
		cmd = SOUND_MIXER_WRITE_VOLUME;
		break;
	default:
		WARN("invalid device id=%04X !\n", wDevID);
		return MMSYSERR_NOTENABLED;
	}
	if (ioctl(mixer, cmd, &volume) == -1) {
		WARN("unable set mixer !\n");
		return MMSYSERR_NOTENABLED;
	}
	close(mixer);
	return MMSYSERR_NOERROR;
#else
	return MMSYSERR_NOTENABLED;
#endif
}


/**************************************************************************
 * 				auxMessage			[sample driver]
 */
DWORD WINAPI auxMessage(WORD wDevID, WORD wMsg, DWORD dwUser, 
								DWORD dwParam1, DWORD dwParam2)
{
	TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n", 
			wDevID, wMsg, dwUser, dwParam1, dwParam2);
	switch(wMsg) {
	case AUXDM_GETDEVCAPS:
		return AUX_GetDevCaps(wDevID,(LPAUXCAPS16)dwParam1,dwParam2);
	case AUXDM_GETNUMDEVS:
		TRACE("return %d;\n", NumDev);
		return NumDev;
	case AUXDM_GETVOLUME:
		return AUX_GetVolume(wDevID,(LPDWORD)dwParam1);
	case AUXDM_SETVOLUME:
		return AUX_SetVolume(wDevID,dwParam1);
	default:
		WARN("unknown message !\n");
	}
	return MMSYSERR_NOTSUPPORTED;
}