RTEMS CPU Kit with SuperCore  4.11.3
ioccom.h
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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 
39 typedef 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 /* copied from libnetworking/sys/filio.h and commented out there */
84 /* Generic file-descriptor ioctl's. */
85 #define FIOCLEX _IO('f', 1) /* set close on exec on fd */
86 #define FIONCLEX _IO('f', 2) /* remove close on exec */
87 #define FIONREAD _IOR('f', 127, int) /* get # bytes to read */
88 #define FIONBIO _IOW('f', 126, int) /* set/clear non-blocking i/o */
89 #define FIOASYNC _IOW('f', 125, int) /* set/clear async i/o */
90 #define FIOSETOWN _IOW('f', 124, int) /* set owner */
91 #define FIOGETOWN _IOR('f', 123, int) /* get owner */
92 
93 #ifdef _KERNEL
94 
95 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
96  defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
97 #define IOCPARM_IVAL(x) ((int)(intptr_t)(void *)*(caddr_t *)(void *)(x))
98 #endif
99 
100 #else
101 
102 #include <sys/cdefs.h>
103 
104 __BEGIN_DECLS
105 int ioctl(int, ioctl_command_t, ...);
106 __END_DECLS
107 
108 #endif
109 
110 #endif /* !_SYS_IOCCOM_H_ */
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