source: rtems/cpukit/libcsupport/include/sys/ioccom.h @ c4b058ca

5
Last change on this file since c4b058ca was 836803f, checked in by Sebastian Huber <sebastian.huber@…>, on 11/17/15 at 13:57:47

Import latest <sys/filio.h> from FreeBSD

Required by new network stack.

  • Property mode set to 100644
File size: 3.7 KB
Line 
1/*-
2 * Copyright (c) 1982, 1986, 1990, 1993, 1994
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *      @(#)ioccom.h    8.2 (Berkeley) 3/28/94
30 * $FreeBSD$
31 */
32
33#ifndef _SYS_IOCCOM_H_
34#define _SYS_IOCCOM_H_
35
36#include <sys/types.h>
37#include <stdint.h>
38
39typedef uint32_t ioctl_command_t;
40
41/*
42 * Ioctl's have the command encoded in the lower word, and the size of
43 * any in or out parameters in the upper word.  The high 3 bits of the
44 * upper word are used to encode the in/out status of the parameter.
45 */
46#define IOCPARM_SHIFT   13              /* number of bits for ioctl size */
47#define IOCPARM_MASK    ((1 << IOCPARM_SHIFT) - 1) /* parameter length mask */
48#define IOCPARM_LEN(x)  (((x) >> 16) & IOCPARM_MASK)
49#define IOCBASECMD(x)   ((x) & ~(IOCPARM_MASK << 16))
50#define IOCGROUP(x)     (((x) >> 8) & 0xff)
51
52#define IOCPARM_MAX     (1 << IOCPARM_SHIFT) /* max size of ioctl */
53#define IOC_VOID        0x20000000      /* no parameters */
54#define IOC_OUT         0x40000000      /* copy out parameters */
55#define IOC_IN          0x80000000      /* copy in parameters */
56#define IOC_INOUT       (IOC_IN|IOC_OUT)
57#define IOC_DIRMASK     (IOC_VOID|IOC_OUT|IOC_IN)
58
59#define _IOC(inout,group,num,len) \
60        ((ioctl_command_t) \
61                ((ioctl_command_t) (inout) \
62                        | (((ioctl_command_t) (len) & IOCPARM_MASK) << 16) \
63                        | ((ioctl_command_t) (group) << 8) \
64                        | (ioctl_command_t) (num)))
65#define _IO(g,n)        _IOC(IOC_VOID,  (g), (n), 0)
66#define _IOWINT(g,n)    _IOC(IOC_VOID,  (g), (n), sizeof(int))
67#define _IOR(g,n,t)     _IOC(IOC_OUT,   (g), (n), sizeof(t))
68#define _IOW(g,n,t)     _IOC(IOC_IN,    (g), (n), sizeof(t))
69/* this should be _IORW, but stdio got there first */
70#define _IOWR(g,n,t)    _IOC(IOC_INOUT, (g), (n), sizeof(t))
71
72/*
73 *  IOCTL values
74 */
75
76#define       RTEMS_IO_GET_ATTRIBUTES 1
77#define       RTEMS_IO_SET_ATTRIBUTES 2
78#define       RTEMS_IO_TCDRAIN        3
79#define       RTEMS_IO_RCVWAKEUP      4
80#define       RTEMS_IO_SNDWAKEUP      5
81#define       RTEMS_IO_TCFLUSH        6
82
83#ifdef _KERNEL
84
85#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
86    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
87#define IOCPARM_IVAL(x) ((int)(intptr_t)(void *)*(caddr_t *)(void *)(x))
88#endif
89
90#else
91
92#include <sys/cdefs.h>
93
94__BEGIN_DECLS
95int     ioctl(int, ioctl_command_t, ...);
96__END_DECLS
97
98#endif
99
100#endif /* !_SYS_IOCCOM_H_ */
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