1 /* $OpenBSD: bsdos_ioctl.h,v 1.3 2003/06/17 21:56:25 millert Exp $ */
2
3 /*
4 * Copyright (c) 1999 Todd C. Miller <Todd.Miller@courtesan.com>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #ifndef _BSDOS_IOCTL_H
20 #define _BSDOS_IOCTL_H
21
22 struct bsdos_audio_buf_info {
23 int fragments;
24 int fragsize;
25 int bytes;
26 };
27
28 #define BSDOS_IOCPARM_MASK 0x1fff
29 #define BSDOS_IOCGROUP(x) (((x) >> 8) & 0xff)
30
31 #define BSDOS_IOC_VOID (unsigned long)0x20000000
32 #define BSDOS_IOC_OUT (unsigned long)0x40000000
33 #define BSDOS_IOC_IN (unsigned long)0x80000000
34 #define BSDOS_IOC_INOUT (BSDOS_IOC_IN|BSDOS_IOC_OUT)
35 #define BSDOS_IOC_DIRMASK (unsigned long)0xe0000000
36
37 #define _BSDOS_IOC(inout,group,num,len) \
38 (inout | ((len & BSDOS_IOCPARM_MASK) << 16) | ((group) << 8) | (num))
39 #define _BSDOS_IOR(g,n,t) _BSDOS_IOC(BSDOS_IOC_OUT, (g), (n), sizeof(t))
40
41 #define BSDOS_SNDCTL_DSP_GETOSPACE _BSDOS_IOR('P', 12, struct bsdos_audio_buf_info)
42 #define BSDOS_SNDCTL_DSP_GETISPACE _BSDOS_IOR('P', 13, struct bsdos_audio_buf_info)
43
44 #endif /* _BSDOS_IOCTL_H */