/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1996, by Sun Microsystems, Inc.
 * All rights reserved.
 */

#ifndef	_SYS_SCSI_SCSI_RESOURCE_H
#define	_SYS_SCSI_SCSI_RESOURCE_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include <sys/scsi/scsi_types.h>

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * SCSI Resource Function Declaratoins
 */

/*
 * Defines for stating preferences in resource allocation
 */

#define	NULL_FUNC	((int (*)())0)
#define	SLEEP_FUNC	((int (*)())1)

#ifdef	_KERNEL
/*
 * Defines for the flags to scsi_init_pkt()
 */
#define	PKT_CONSISTENT	0x0001		/* this is an 'iopb' packet */
#define	PKT_DMA_PARTIAL	0x040000	/* partial xfer ok */

/*
 * Old PKT_CONSISTENT value for binary compatibility with x86 2.1
 */
#define	PKT_CONSISTENT_OLD	0x001000

/*
 * Kernel function declarations
 */

#ifdef	__STDC__

extern struct buf *scsi_alloc_consistent_buf(struct scsi_address *,
    struct buf *, size_t, uint_t, int (*)(caddr_t), caddr_t);

extern struct scsi_pkt *scsi_init_pkt(struct scsi_address *,
    struct scsi_pkt *, struct buf *, int, int, int, int,
    int (*)(caddr_t), caddr_t);

extern void scsi_destroy_pkt(struct scsi_pkt *);

extern void scsi_free_consistent_buf(struct buf *);

extern struct scsi_pkt *scsi_resalloc(struct scsi_address *, int,
    int, opaque_t, int (*)());

extern struct scsi_pkt *scsi_pktalloc(struct scsi_address *, int, int,
    int (*)());

extern struct scsi_pkt *scsi_dmaget(struct scsi_pkt *,
    opaque_t, int (*)());

extern void scsi_dmafree(struct scsi_pkt *);

extern void scsi_sync_pkt(struct scsi_pkt *);

extern void scsi_resfree(struct scsi_pkt *);

#else	/* __STDC__ */
extern struct scsi_pkt	*scsi_init_pkt();
extern void 		scsi_destroy_pkt();
extern struct buf 	*scsi_alloc_consistent_buf();
extern void		scsi_free_consistent_buf();
extern struct scsi_pkt *scsi_resalloc();
extern struct scsi_pkt *scsi_pktalloc();
extern struct scsi_pkt *scsi_dmaget();
extern void		scsi_resfree();
extern void		scsi_dmafree();
extern void		scsi_sync_pkt();
#endif	/* __STDC__ */

/*
 * Preliminary version of the SCSA specification
 * mentioned a routine called scsi_pktfree, which
 * turned out to be semantically equivialent to
 * scsi_resfree.
 */

#define	scsi_pktfree	scsi_resfree

#endif	/* _KERNEL */

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_SCSI_SCSI_RESOURCE_H */