// Copyright 2024 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.

#define _IOC_NONE 0U
#define _IOC_WRITE 1U
#define _IOC_READ 2U

#define _IOC_NRBITS 8
#define _IOC_TYPEBITS 8
#define _IOC_SIZEBITS 14
#define _IOC_DIRBITS 2

#define _IOC_NRSHIFT 0
#define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS)
#define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS)
#define _IOC_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS)

#define _IOC(dir, type, nr, size) (((dir) << _IOC_DIRSHIFT) | ((type) << _IOC_TYPESHIFT) | \
				   ((nr) << _IOC_NRSHIFT) | ((size) << _IOC_SIZESHIFT))

#define _IO(type, nr) _IOC(_IOC_NONE, (type), (nr), 0)
#define _IOR(type, nr, arg) _IOC(_IOC_READ, (type), (nr), (sizeof(arg)))
#define _IOW(type, nr, arg) _IOC(_IOC_WRITE, (type), (nr), (sizeof(arg)))
#define _IOWR(type, nr, arg) _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), (sizeof(arg)))