1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */
2*4882a593Smuzhiyun /* TI K3 AM65 CPTS driver interface
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef K3_CPTS_H_
8*4882a593Smuzhiyun #define K3_CPTS_H_
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/device.h>
11*4882a593Smuzhiyun #include <linux/of.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun struct am65_cpts;
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun struct am65_cpts_estf_cfg {
16*4882a593Smuzhiyun u64 ns_period;
17*4882a593Smuzhiyun u64 ns_start;
18*4882a593Smuzhiyun };
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_TI_K3_AM65_CPTS)
21*4882a593Smuzhiyun struct am65_cpts *am65_cpts_create(struct device *dev, void __iomem *regs,
22*4882a593Smuzhiyun struct device_node *node);
23*4882a593Smuzhiyun int am65_cpts_phc_index(struct am65_cpts *cpts);
24*4882a593Smuzhiyun void am65_cpts_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb);
25*4882a593Smuzhiyun void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts, struct sk_buff *skb);
26*4882a593Smuzhiyun void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en);
27*4882a593Smuzhiyun u64 am65_cpts_ns_gettime(struct am65_cpts *cpts);
28*4882a593Smuzhiyun int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx,
29*4882a593Smuzhiyun struct am65_cpts_estf_cfg *cfg);
30*4882a593Smuzhiyun void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx);
31*4882a593Smuzhiyun #else
am65_cpts_create(struct device * dev,void __iomem * regs,struct device_node * node)32*4882a593Smuzhiyun static inline struct am65_cpts *am65_cpts_create(struct device *dev,
33*4882a593Smuzhiyun void __iomem *regs,
34*4882a593Smuzhiyun struct device_node *node)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun return ERR_PTR(-EOPNOTSUPP);
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
am65_cpts_phc_index(struct am65_cpts * cpts)39*4882a593Smuzhiyun static inline int am65_cpts_phc_index(struct am65_cpts *cpts)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun return -1;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
am65_cpts_tx_timestamp(struct am65_cpts * cpts,struct sk_buff * skb)44*4882a593Smuzhiyun static inline void am65_cpts_tx_timestamp(struct am65_cpts *cpts,
45*4882a593Smuzhiyun struct sk_buff *skb)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun }
48*4882a593Smuzhiyun
am65_cpts_prep_tx_timestamp(struct am65_cpts * cpts,struct sk_buff * skb)49*4882a593Smuzhiyun static inline void am65_cpts_prep_tx_timestamp(struct am65_cpts *cpts,
50*4882a593Smuzhiyun struct sk_buff *skb)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun }
53*4882a593Smuzhiyun
am65_cpts_rx_enable(struct am65_cpts * cpts,bool en)54*4882a593Smuzhiyun static inline void am65_cpts_rx_enable(struct am65_cpts *cpts, bool en)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
am65_cpts_ns_gettime(struct am65_cpts * cpts)58*4882a593Smuzhiyun static inline s64 am65_cpts_ns_gettime(struct am65_cpts *cpts)
59*4882a593Smuzhiyun {
60*4882a593Smuzhiyun return 0;
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
am65_cpts_estf_enable(struct am65_cpts * cpts,int idx,struct am65_cpts_estf_cfg * cfg)63*4882a593Smuzhiyun static inline int am65_cpts_estf_enable(struct am65_cpts *cpts, int idx,
64*4882a593Smuzhiyun struct am65_cpts_estf_cfg *cfg)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun return 0;
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
am65_cpts_estf_disable(struct am65_cpts * cpts,int idx)69*4882a593Smuzhiyun static inline void am65_cpts_estf_disable(struct am65_cpts *cpts, int idx)
70*4882a593Smuzhiyun {
71*4882a593Smuzhiyun }
72*4882a593Smuzhiyun #endif
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun #endif /* K3_CPTS_H_ */
75