1
2
3
4#ifndef _SJA1105_PTP_H
5#define _SJA1105_PTP_H
6
7#include <linux/timer.h>
8
9#if IS_ENABLED(CONFIG_NET_DSA_SJA1105_PTP)
10
11
12
13
14
15
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17
18
19
20
21
22
23
24static inline s64 future_base_time(s64 base_time, s64 cycle_time, s64 now)
25{
26 s64 a, b, n;
27
28 if (base_time >= now)
29 return base_time;
30
31 a = now - base_time;
32 b = cycle_time;
33 n = div_s64(a + b - 1, b);
34
35 return base_time + n * cycle_time;
36}
37
38
39
40
41static inline s64 ns_to_sja1105_delta(s64 ns)
42{
43 return div_s64(ns, 200);
44}
45
46static inline s64 sja1105_delta_to_ns(s64 delta)
47{
48 return delta * 200;
49}
50
51struct sja1105_ptp_cmd {
52 u64 startptpcp;
53 u64 stopptpcp;
54 u64 ptpstrtsch;
55 u64 ptpstopsch;
56 u64 resptp;
57 u64 corrclk4ts;
58 u64 ptpclkadd;
59};
60
61struct sja1105_ptp_data {
62 struct timer_list extts_timer;
63
64 struct sk_buff_head skb_rxtstamp_queue;
65 struct ptp_clock_info caps;
66 struct ptp_clock *clock;
67 struct sja1105_ptp_cmd cmd;
68
69 struct mutex lock;
70 bool extts_enabled;
71 u64 ptpsyncts;
72};
73
74int sja1105_ptp_clock_register(struct dsa_switch *ds);
75
76void sja1105_ptp_clock_unregister(struct dsa_switch *ds);
77
78void sja1105et_ptp_cmd_packing(u8 *buf, struct sja1105_ptp_cmd *cmd,
79 enum packing_op op);
80
81void sja1105pqrs_ptp_cmd_packing(u8 *buf, struct sja1105_ptp_cmd *cmd,
82 enum packing_op op);
83
84int sja1105_get_ts_info(struct dsa_switch *ds, int port,
85 struct ethtool_ts_info *ts);
86
87void sja1105_ptp_txtstamp_skb(struct dsa_switch *ds, int slot,
88 struct sk_buff *clone);
89
90bool sja1105_port_rxtstamp(struct dsa_switch *ds, int port,
91 struct sk_buff *skb, unsigned int type);
92
93void sja1105_port_txtstamp(struct dsa_switch *ds, int port,
94 struct sk_buff *skb);
95
96int sja1105_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);
97
98int sja1105_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);
99
100int __sja1105_ptp_gettimex(struct dsa_switch *ds, u64 *ns,
101 struct ptp_system_timestamp *sts);
102
103int __sja1105_ptp_settime(struct dsa_switch *ds, u64 ns,
104 struct ptp_system_timestamp *ptp_sts);
105
106int __sja1105_ptp_adjtime(struct dsa_switch *ds, s64 delta);
107
108int sja1105_ptp_commit(struct dsa_switch *ds, struct sja1105_ptp_cmd *cmd,
109 sja1105_spi_rw_mode_t rw);
110
111bool sja1105_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
112bool sja1110_rxtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
113void sja1110_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);
114
115#else
116
117struct sja1105_ptp_cmd;
118
119
120
121
122
123struct sja1105_ptp_data {
124 struct mutex lock;
125};
126
127static inline int sja1105_ptp_clock_register(struct dsa_switch *ds)
128{
129 return 0;
130}
131
132static inline void sja1105_ptp_clock_unregister(struct dsa_switch *ds) { }
133
134static inline void sja1105_ptp_txtstamp_skb(struct dsa_switch *ds, int slot,
135 struct sk_buff *clone)
136{
137}
138
139static inline int __sja1105_ptp_gettimex(struct dsa_switch *ds, u64 *ns,
140 struct ptp_system_timestamp *sts)
141{
142 return 0;
143}
144
145static inline int __sja1105_ptp_settime(struct dsa_switch *ds, u64 ns,
146 struct ptp_system_timestamp *ptp_sts)
147{
148 return 0;
149}
150
151static inline int __sja1105_ptp_adjtime(struct dsa_switch *ds, s64 delta)
152{
153 return 0;
154}
155
156static inline int sja1105_ptp_commit(struct dsa_switch *ds,
157 struct sja1105_ptp_cmd *cmd,
158 sja1105_spi_rw_mode_t rw)
159{
160 return 0;
161}
162
163#define sja1105et_ptp_cmd_packing NULL
164
165#define sja1105pqrs_ptp_cmd_packing NULL
166
167#define sja1105_get_ts_info NULL
168
169#define sja1105_port_rxtstamp NULL
170
171#define sja1105_port_txtstamp NULL
172
173#define sja1105_hwtstamp_get NULL
174
175#define sja1105_hwtstamp_set NULL
176
177#define sja1105_rxtstamp NULL
178#define sja1110_rxtstamp NULL
179#define sja1110_txtstamp NULL
180
181#endif
182
183#endif
184