1 | /* $NetBSD: scsipi_base.h,v 1.23 2016/11/20 15:37:19 mlelstv 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 | |
35 | struct scsipi_xfer *scsipi_get_xs(struct scsipi_periph *, int); |
36 | void scsipi_put_xs(struct scsipi_xfer *); |
37 | |
38 | static __inline struct scsipi_xfer *scsipi_make_xs_internal(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 | static __inline struct scsipi_xfer *scsipi_make_xs_unlocked(struct scsipi_periph *, |
44 | struct scsipi_generic *, int cmdlen, u_char *data_addr, |
45 | int datalen, int retries, int timeout, struct buf *, |
46 | int flags) __unused; |
47 | |
48 | static __inline struct scsipi_xfer *scsipi_make_xs_locked(struct scsipi_periph *, |
49 | struct scsipi_generic *, int cmdlen, u_char *data_addr, |
50 | int datalen, int retries, int timeout, struct buf *, |
51 | int flags) __unused; |
52 | |
53 | /* |
54 | * Make a scsipi_xfer, and return a pointer to it. |
55 | */ |
56 | |
57 | static __inline struct scsipi_xfer * |
58 | scsipi_make_xs_internal(struct scsipi_periph *periph, struct scsipi_generic *cmd, |
59 | int cmdlen, u_char *data_addr, int datalen, int retries, int timeout, |
60 | struct buf *bp, int flags) |
61 | { |
62 | struct scsipi_xfer *xs; |
63 | |
64 | if ((xs = scsipi_get_xs(periph, flags)) == NULL) |
65 | return (NULL); |
66 | |
67 | /* |
68 | * Fill out the scsipi_xfer structure. We don't know whose context |
69 | * the cmd is in, so copy it. |
70 | */ |
71 | memcpy(&xs->cmdstore, cmd, cmdlen); |
72 | xs->cmd = &xs->cmdstore; |
73 | xs->cmdlen = cmdlen; |
74 | xs->data = data_addr; |
75 | xs->datalen = datalen; |
76 | xs->xs_retries = retries; |
77 | xs->timeout = timeout; |
78 | xs->bp = bp; |
79 | |
80 | return (xs); |
81 | } |
82 | |
83 | static __inline struct scsipi_xfer * |
84 | scsipi_make_xs_unlocked(struct scsipi_periph *periph, struct scsipi_generic *cmd, |
85 | int cmdlen, u_char *data_addr, int datalen, int retries, int timeout, |
86 | struct buf *bp, int flags) |
87 | { |
88 | |
89 | return scsipi_make_xs_internal(periph, cmd, cmdlen, data_addr, |
90 | datalen, retries, timeout, bp, flags & ~XS_CTL_NOSLEEP); |
91 | } |
92 | |
93 | static __inline struct scsipi_xfer * |
94 | scsipi_make_xs_locked(struct scsipi_periph *periph, struct scsipi_generic *cmd, |
95 | int cmdlen, u_char *data_addr, int datalen, int retries, int timeout, |
96 | struct buf *bp, int flags) |
97 | { |
98 | |
99 | return scsipi_make_xs_internal(periph, cmd, cmdlen, data_addr, |
100 | datalen, retries, timeout, bp, flags | XS_CTL_NOSLEEP); |
101 | } |
102 | |
103 | #endif /* _DEV_SCSIPI_SCSIPI_BASE_H_ */ |
104 | |