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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright 2026 The FreeBSD Foundation
*
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
* under sponsorship from the FreeBSD Foundation.
*/
#ifndef __DEV_NTSYNC_H__
#define __DEV_NTSYNC_H__
#include <sys/types.h>
#include <sys/ioccom.h>
struct ntsync_sem_args {
uint32_t count;
uint32_t max;
};
struct ntsync_mutex_args {
uint32_t owner;
uint32_t count;
};
struct ntsync_event_args {
uint32_t manual;
uint32_t signaled;
};
struct ntsync_wait_args {
uint64_t timeout;
uint64_t objs;
uint32_t count;
uint32_t index;
uint32_t flags;
uint32_t owner;
uint32_t alert;
uint32_t pad;
};
#define NTSYNC_WAIT_REALTIME 0x00000001
#define NTSYNC_MAX_WAIT_COUNT 64
/*
* 'sp' means that the ioctl is special, it might return both error
* and copy out parameters. See ntsync_ioctl_copyout().
*/
#define NTSYNC_IOC_CREATE_SEM _IOW('n', 1, struct ntsync_sem_args)
#define NTSYNC_IOC_CREATE_MUTEX _IOW('n', 2, struct ntsync_mutex_args)
#define NTSYNC_IOC_CREATE_EVENT _IOW('n', 3, struct ntsync_event_args)
#define NTSYNC_IOC_SEM_RELEASE _IOWR('n', 4, uint32_t)
#define NTSYNC_IOC_MUTEX_UNLOCK _IOWR('n', 5, struct ntsync_mutex_args)
#define NTSYNC_IOC_EVENT_SET _IOR('n', 6, uint32_t)
#define NTSYNC_IOC_EVENT_RESET _IOR('n', 7, uint32_t)
#define NTSYNC_IOC_EVENT_PULSE _IOR('n', 8, uint32_t)
#define NTSYNC_IOC_SEM_READ _IOR('n', 9, struct ntsync_sem_args)
#define NTSYNC_IOC_MUTEX_READ _IO('n', 10) /* sp */
#define NTSYNC_IOC_EVENT_READ _IOR('n', 11, struct ntsync_event_args)
#define NTSYNC_IOC_MUTEX_KILL _IOW('n', 12, uint32_t)
#define NTSYNC_IOC_WAIT_ANY _IOW('n', 13, struct ntsync_wait_args) /* sp */
#define NTSYNC_IOC_WAIT_ALL _IOW('n', 14, struct ntsync_wait_args) /* sp */
#endif
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