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Darwin 0.2 Driver Kit

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.1 (the "License").  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * InputStream.h
 *
 * Copyright (c) 1991, NeXT Computer, Inc.  All rights reserved.
 *
 *      Audio driver input stream object.
 *
 * HISTORY
 *      07/14/92/mtm    Original coding.
 */

#import "AudioStream.h"

@interface InputStream: AudioStream
{
    BOOL wantsRecordedData;
}

- (BOOL)recordSize:(u_int)byteCount tag:(int)aTag
                          replyTo:(port_t)replyPort
                        replyMsgs:(ASMsgRequest)messages;
- (u_int)mixRegion:(region_t *)region descriptor:(dma_desc_t *)ddp
            buffer:(vm_address_t)data maxCount:(u_int)max
            virgin:(BOOL)isVirgin rate:(u_int)srate format:(IOAudioDataFormat)format 
	    channelCount:(u_int)count;
- completeRegion:(region_t *)region descriptor:(dma_desc_t *)ddp
            size:(u_int)xfer used:(u_int *)used;
- returnRecordedData;
- dmaCompleteDescriptor:(dma_desc_t *)ddp transfered:(u_int)count;
- freeRegion:(region_t *)region;

@end

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