/* $Aumix: aumix/src/dummy.c,v 1.3 2002/04/29 19:41:26 trevor Exp $ * dummy.c: implement a dummy mixer for debugging on machines without *          sound card * copyright (c) 1999 Christian Weisgerber * * This file is part of aumix. * * Aumix is free software; you can redistribute it and/or modify it under the * terms of the GNU General Public License as published by the Free Software * Foundation; either version 2 of the License, or (at your option) any later * version. * * Aumix is distributed in the hope that it will be useful, but WITHOUT ANY * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR * A PARTICULAR PURPOSE.  See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * aumix; if not, write to the Free Software Foundation, Inc., 59 Temple Place, * Suite 330, Boston, MA 02111-1307, USA. */#include "common.h"#ifdef DUMMY_MIXER#define	DUMMY_DEVMASK	 0x01FBFFFF#define	DUMMY_RECMASK	 0x00040040#define	DUMMY_RECSRC	 0x000001C8#define	DUMMY_STEREODEVS 0x0000315Fint             dummy_ioctl(int fd, unsigned long req, int *arg){	static int      recsrc = DUMMY_RECSRC;	static int      dev[SOUND_MIXER_NRDEVICES];	switch (req) {	case SOUND_MIXER_READ_DEVMASK:		*arg = DUMMY_DEVMASK;		break;	case SOUND_MIXER_READ_RECMASK:		*arg = DUMMY_RECMASK;		break;	case SOUND_MIXER_READ_RECSRC:		*arg = recsrc;		break;	case SOUND_MIXER_READ_STEREODEVS:		*arg = DUMMY_STEREODEVS;		break;	case SOUND_MIXER_WRITE_RECSRC:		recsrc = *arg;		break;	default:		if (req >= MIXER_READ(0) && req < MIXER_READ(SOUND_MIXER_NRDEVICES)) {			*arg = dev[req - MIXER_READ(0)];			break;		} else if (req >= MIXER_WRITE(0) && req < MIXER_WRITE(SOUND_MIXER_NRDEVICES)) {			dev[req - MIXER_WRITE(0)] = *arg;			break;		}		return -1;	}	return 0;}#endif				/* DUMMY_MIXER */