1/*	$NetBSD: scsipi_base.h,v 1.21 2006/11/16 01:33:26 christos Exp $	*/
2
3/*-
4 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DEV_SCSIPI_SCSIPI_BASE_H_
33#define _DEV_SCSIPI_SCSIPI_BASE_H_
34
35struct scsipi_xfer *scsipi_get_xs(struct scsipi_periph *, int);
36void	scsipi_put_xs(struct scsipi_xfer *);
37
38static __inline struct scsipi_xfer *scsipi_make_xs(struct scsipi_periph *,
39	    struct scsipi_generic *, int cmdlen, u_char *data_addr,
40	    int datalen, int retries, int timeout, struct buf *,
41	    int flags) __unused;
42
43/*
44 * Make a scsipi_xfer, and return a pointer to it.
45 */
46
47static __inline struct scsipi_xfer *
48scsipi_make_xs(struct scsipi_periph *periph, struct scsipi_generic *cmd,
49    int cmdlen, u_char *data_addr, int datalen, int retries, int timeout,
50    struct buf *bp, int flags)
51{
52	struct scsipi_xfer *xs;
53
54	if ((xs = scsipi_get_xs(periph, flags)) == NULL)
55		return (NULL);
56
57	/*
58	 * Fill out the scsipi_xfer structure.  We don't know whose context
59	 * the cmd is in, so copy it.
60	 */
61	memcpy(&xs->cmdstore, cmd, cmdlen);
62	xs->cmd = &xs->cmdstore;
63	xs->cmdlen = cmdlen;
64	xs->data = data_addr;
65	xs->datalen = datalen;
66	xs->xs_retries = retries;
67	xs->timeout = timeout;
68	xs->bp = bp;
69
70	return (xs);
71}
72
73#endif /* _DEV_SCSIPI_SCSIPI_BASE_H_ */
74