1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Marvell PTP driver |
3 | * |
4 | * Copyright (C) 2020 Marvell. |
5 | * |
6 | */ |
7 | |
8 | #ifndef PTP_H |
9 | #define PTP_H |
10 | |
11 | #include <linux/timecounter.h> |
12 | #include <linux/time64.h> |
13 | #include <linux/spinlock.h> |
14 | |
15 | struct ptp { |
16 | struct pci_dev *pdev; |
17 | void __iomem *reg_base; |
18 | u64 (*read_ptp_tstmp)(struct ptp *ptp); |
19 | spinlock_t ptp_lock; /* lock */ |
20 | struct hrtimer hrtimer; |
21 | ktime_t last_ts; |
22 | u32 clock_rate; |
23 | u32 clock_period; |
24 | }; |
25 | |
26 | struct rvu; |
27 | struct ptp *ptp_get(void); |
28 | void ptp_put(struct ptp *ptp); |
29 | void ptp_start(struct rvu *rvu, u64 sclk, u32 ext_clk_freq, u32 extts); |
30 | |
31 | extern struct pci_driver ptp_driver; |
32 | |
33 | #endif |
34 | |