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68 lines
3.1 KiB
C
68 lines
3.1 KiB
C
// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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/*-
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* Copyright (c) 1982, 1986, 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ioccom.h 8.2 (Berkeley) 3/28/94
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* $FreeBSD$
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*/
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#define IOCPARM_SHIFT 13 /* number of bits for ioctl size */
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#define IOCPARM_MASK ((1 << IOCPARM_SHIFT) - 1) /* parameter length mask */
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#define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
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#define IOCBASECMD(x) ((x) & ~(IOCPARM_MASK << 16))
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#define IOCGROUP(x) (((x) >> 8) & 0xff)
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#define IOCPARM_MAX (1 << IOCPARM_SHIFT) /* max size of ioctl */
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#define IOC_VOID 0x20000000 /* no parameters */
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#define IOC_OUT 0x40000000 /* copy out parameters */
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#define IOC_IN 0x80000000 /* copy in parameters */
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#define IOC_INOUT (IOC_IN | IOC_OUT)
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#define IOC_DIRMASK (IOC_VOID | IOC_OUT | IOC_IN)
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#define _IOC(inout, group, num, len) \
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((unsigned long)((inout) | (((len) & IOCPARM_MASK) << 16) | ((group) << 8) | (num)))
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#define _IO(g, n) _IOC(IOC_VOID, (g), (n), 0)
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#define _IOWINT(g, n) _IOC(IOC_VOID, (g), (n), sizeof(int))
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#define _IOR(g, n, t) _IOC(IOC_OUT, (g), (n), sizeof(t))
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#define _IOW(g, n, t) _IOC(IOC_IN, (g), (n), sizeof(t))
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/* this should be _IORW, but stdio got there first */
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#define _IOWR(g, n, t) _IOC(IOC_INOUT, (g), (n), sizeof(t))
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/*
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# Simple parse of ioctl cmd
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def parse(v):
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print('inout', (v >> 24 & 0xFF))
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print('len', hex(v >> 16 & 0xFF))
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print('group', chr(v >> 8 & 0xFF))
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print('num', hex(v & 0xFF))
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*/
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