xref: /netbsd-src/sys/dev/scsipi/scsipi_base.h (revision 23c8222edbfb0f0932d88a8351d3a0cf817dfb9e)
1 /*	$NetBSD: scsipi_base.h,v 1.15 2004/09/18 00:08:16 mycroft 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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #ifndef _DEV_SCSIPI_SCSIPI_BASE_H_
40 #define _DEV_SCSIPI_SCSIPI_BASE_H_
41 
42 struct scsipi_xfer *scsipi_get_xs(struct scsipi_periph *, int);
43 void	scsipi_put_xs(struct scsipi_xfer *);
44 
45 static __inline struct scsipi_xfer *scsipi_make_xs(struct scsipi_periph *,
46 	    struct scsipi_generic *, int cmdlen, u_char *data_addr,
47 	    int datalen, int retries, int timeout, struct buf *,
48 	    int flags) __unused;
49 
50 /*
51  * Make a scsipi_xfer, and return a pointer to it.
52  */
53 
54 static __inline struct scsipi_xfer * __unused
55 scsipi_make_xs(struct scsipi_periph *periph, struct scsipi_generic *cmd,
56     int cmdlen, u_char *data_addr, int datalen, int retries, int timeout,
57     struct buf *bp, int flags)
58 {
59 	struct scsipi_xfer *xs;
60 
61 	if ((xs = scsipi_get_xs(periph, flags)) == NULL)
62 		return (NULL);
63 
64 	/*
65 	 * Fill out the scsipi_xfer structure.  We don't know whose context
66 	 * the cmd is in, so copy it.
67 	 */
68 	memcpy(&xs->cmdstore, cmd, cmdlen);
69 	xs->cmd = &xs->cmdstore;
70 	xs->cmdlen = cmdlen;
71 	xs->data = data_addr;
72 	xs->datalen = datalen;
73 	xs->xs_retries = retries;
74 	xs->timeout = timeout;
75 	xs->bp = bp;
76 
77 	return (xs);
78 }
79 
80 #endif /* _DEV_SCSIPI_SCSIPI_BASE_H_ */
81