1 /*-
2  * Copyright (c) 2023 The FreeBSD Foundation
3  *
4  * This software was developed by Björn Zeeb under sponsorship from
5  * the FreeBSD Foundation.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef	_LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H
32 #define	_LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H
33 
34 #include <linux/types.h>
35 #include <linux/device.h>
36 #include <linux/kernel.h>	/* pr_debug */
37 #include <linux/ktime.h>	/* system_device_crosststamp */
38 
39 /* This very likely belongs elsewhere. */
40 struct system_device_crosststamp {
41 	ktime_t	device;
42 	ktime_t	sys_realtime;
43 	ktime_t	sys_monotonic_raw;	/* name guessed based on comment */
44 };
45 
46 struct ptp_clock_info {
47 	char		name[32];
48 	int		max_adj;
49 	void		*owner;			/* THIS_MODULE */
50 	int (*adjfine)(struct ptp_clock_info *, long);
51 	int (*adjtime)(struct ptp_clock_info *, s64);
52 	int (*getcrosststamp)(struct ptp_clock_info *, struct system_device_crosststamp *);
53 	int (*gettime64)(struct ptp_clock_info *, struct timespec *);
54 };
55 
56 static inline struct ptp_clock *
57 ptp_clock_register(struct ptp_clock_info *ptpci, struct device *dev)
58 {
59 
60 	pr_debug("%s: TODO\n", __func__);
61 	return (NULL);
62 }
63 
64 static inline void
65 ptp_clock_unregister(struct ptp_clock *ptpc)
66 {
67 	pr_debug("%s: TODO\n", __func__);
68 }
69 
70 static inline int
71 ptp_clock_index(struct ptp_clock *ptpc)
72 {
73 	pr_debug("%s: TODO\n", __func__);
74 	return (0);
75 }
76 
77 #endif	/* _LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H */
78