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Darwin 0.3 EIDE device driver

/*
 * 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 1.0 (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@
 */
/*
 * Copyright 1997-1998 by Apple Computer, Inc., All rights reserved.
 * Copyright 1994-1997 NeXT Software, Inc., All rights reserved.
 *
 * AtapiCntCmds.h - ATAPI command interface for ATA. 
 *
 * HISTORY
 *
 * 5-Jan-1998	Joe Liu at Apple
 *	Added fields in atapiIoReq_t for SCSI/ATAPI command conversion.
 *
 * 1-Sep-1994	Rakesh Dubey at NeXT
 *	Created.
 */

#ifndef _ATAPI_CNT_CMDS_H
#define _ATAPI_CNT_CMDS_H 1

#import "atapi_extern.h"
#import "IdeCnt.h"
#import <driverkit/kernelDriver.h>
#import <driverkit/interruptMsg.h>
#import <mach/mach_interface.h>
#import <driverkit/IODevice.h>
#import <driverkit/align.h>
#import <machkit/NXLock.h>
#import <machdep/i386/io_inline.h>
#import <driverkit/scsiTypes.h>
#import <bsd/string.h>

#define MAX_ATAPI_CMD_LEN	16

typedef struct {
    unsigned char drive;
    unsigned char lun;				/* dream on */
    unsigned char atapiCmd[MAX_ATAPI_CMD_LEN];
    unsigned char scsiCmd;
	unsigned int  timeout;			/* timeout in seconds */
    unsigned char cmdLen;
    unsigned int maxTransfer;
    BOOL  read;
    esense_reply_t senseData;
    unsigned int bytesTransferred;
    unsigned char scsiStatus;
} atapiIoReq_t;

@interface IdeController(ATAPI)

- (atapi_return_t) atapiWaitStatusBitsFor:(unsigned int)timeout
	on:(unsigned char)on
	off:(unsigned char)off
	alt:(BOOL)alt;

- (unsigned char) atapiCommandPacketSize:(unsigned char)unit;

- (atapi_return_t) atapiSoftReset:(unsigned char)unit;

- (void) printAtapiInfo:(ideIdentifyInfo_t *)ideIdentifyInfo
		Device:(unsigned char)unit;

- (atapi_return_t) atapiIdentifyDevice:(struct vm_map *)client
			    	addr:(caddr_t)xferAddr
				unit:(unsigned char)unit;
				
- (void) atapiInitParameters:(ideIdentifyInfo_t *)infoPtr 
		Device:(unsigned char)unit;
		
- (atapi_return_t) issuePacketCommand;

- (void) sendAtapiCommand:(unsigned char *)atapiCmd
	cmdLen:(unsigned char)len;

- (sc_status_t) atapiPIODataTransfer:(atapiIoReq_t *)atapiIoReq 
			buffer:(void *)buffer 
			client:(struct vm_map *)client;

- (void) dumpStatus:(atapiIoReq_t *)atapiIoReq;

- (sc_status_t) atapiExecuteCmd:(atapiIoReq_t *)atapiIoReq 
		    buffer : (void *)buffer 
		    client : (struct vm_map *)client;
@end

/*
 * So that we can use ATAPI naming convention and still use the ATA
 * registers. 
 */
#define interruptReason		sectCnt
#define byteCountLow		cylLow
#define byteCountHigh		cylHigh
#define driveSelect			drHead

#endif /* _ATAPI_CNT_CMDS_H */

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