1 /* $OpenBSD: freebsd_ioctl.c,v 1.4 2001/02/03 02:45:31 mickey Exp $ */
2 /* $NetBSD: freebsd_ioctl.c,v 1.1 1995/10/10 01:19:31 mycroft Exp $ */
3
4 /*
5 * Copyright (c) 1995 Frank van der Linden
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed for the NetBSD Project
19 * by Frank van der Linden
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/proc.h>
38 #include <sys/mount.h>
39
40 #include <sys/syscallargs.h>
41
42 #include <compat/freebsd/freebsd_signal.h>
43 #include <compat/freebsd/freebsd_syscallargs.h>
44 #include <compat/freebsd/freebsd_util.h>
45 #include <compat/freebsd/freebsd_ioctl.h>
46
47 #include <compat/ossaudio/ossaudio.h>
48 #include <compat/ossaudio/ossaudiovar.h>
49
50 /* The FreeBSD and OSS(Linux) encodings of ioctl R/W differ. */
51 static void freebsd_to_oss(struct freebsd_sys_ioctl_args *,
52 struct oss_sys_ioctl_args *);
53
54 static void
55 freebsd_to_oss(uap, rap)
56 struct freebsd_sys_ioctl_args *uap;
57 struct oss_sys_ioctl_args *rap;
58 {
59 u_long ocmd, ncmd;
60
61 ocmd = SCARG(uap, com);
62 ncmd = ocmd &~ FREEBSD_IOC_DIRMASK;
63 switch(ocmd & FREEBSD_IOC_DIRMASK) {
64 case FREEBSD_IOC_VOID: ncmd |= OSS_IOC_VOID; break;
65 case FREEBSD_IOC_OUT: ncmd |= OSS_IOC_OUT; break;
66 case FREEBSD_IOC_IN: ncmd |= OSS_IOC_IN; break;
67 case FREEBSD_IOC_INOUT: ncmd |= OSS_IOC_INOUT; break;
68 }
69 SCARG(rap, fd) = SCARG(uap, fd);
70 SCARG(rap, com) = ncmd;
71 SCARG(rap, data) = SCARG(uap, data);
72 }
73
74 int
75 freebsd_sys_ioctl(p, v, retval)
76 struct proc *p;
77 void *v;
78 register_t *retval;
79 {
80 struct freebsd_sys_ioctl_args /* {
81 syscallarg(int) fd;
82 syscallarg(u_long) com;
83 syscallarg(caddr_t) data;
84 } */ *uap = v;
85 struct oss_sys_ioctl_args ap;
86
87 /*
88 * XXX - <sys/cdio.h>'s incompatibility
89 * _IO('c', 25..27, *): incompatible
90 * _IO('c', 28... , *): not exist
91 */
92 /* XXX - <sys/mtio.h> */
93 /* XXX - <sys/scsiio.h> */
94 /* XXX - should convert machine dependent ioctl()s */
95
96 switch (FREEBSD_IOCGROUP(SCARG(uap, com))) {
97 case 'M':
98 freebsd_to_oss(uap, &ap);
99 return oss_ioctl_mixer(p, &ap, retval);
100 case 'Q':
101 freebsd_to_oss(uap, &ap);
102 return oss_ioctl_sequencer(p, &ap, retval);
103 case 'P':
104 freebsd_to_oss(uap, &ap);
105 return oss_ioctl_audio(p, &ap, retval);
106 default:
107 return sys_ioctl(p, uap, retval);
108 }
109 }