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
29 #ifndef _LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H
30 #define _LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H
31
32 #include <linux/types.h>
33 #include <linux/device.h>
34 #include <linux/kernel.h> /* pr_debug */
35 #include <linux/ktime.h> /* system_device_crosststamp */
36
37 /* This very likely belongs elsewhere. */
38 struct system_device_crosststamp {
39 ktime_t device;
40 ktime_t sys_realtime;
41 ktime_t sys_monotonic_raw; /* name guessed based on comment */
42 };
43
44 struct ptp_clock_info {
45 char name[32];
46 int max_adj;
47 void *owner; /* THIS_MODULE */
48 int (*adjfine)(struct ptp_clock_info *, long);
49 int (*adjtime)(struct ptp_clock_info *, s64);
50 int (*getcrosststamp)(struct ptp_clock_info *, struct system_device_crosststamp *);
51 int (*gettime64)(struct ptp_clock_info *, struct timespec *);
52 };
53
54 static inline struct ptp_clock *
ptp_clock_register(struct ptp_clock_info * ptpci,struct device * dev)55 ptp_clock_register(struct ptp_clock_info *ptpci, struct device *dev)
56 {
57
58 pr_debug("%s: TODO\n", __func__);
59 return (NULL);
60 }
61
62 static inline void
ptp_clock_unregister(struct ptp_clock * ptpc)63 ptp_clock_unregister(struct ptp_clock *ptpc)
64 {
65 pr_debug("%s: TODO\n", __func__);
66 }
67
68 static inline int
ptp_clock_index(struct ptp_clock * ptpc)69 ptp_clock_index(struct ptp_clock *ptpc)
70 {
71 pr_debug("%s: TODO\n", __func__);
72 return (0);
73 }
74
75 #endif /* _LINUXKPI_LINUX_PTP_CLOCK_KERNEL_H */
76