1 // SPDX-License-Identifier: GPL-2.0
2
3 #ifndef __USB_TYPEC_MUX
4 #define __USB_TYPEC_MUX
5
6 #include <linux/err.h>
7 #include <linux/property.h>
8 #include <linux/usb/typec.h>
9
10 struct device;
11 struct typec_mux;
12 struct typec_mux_dev;
13 struct typec_switch;
14 struct typec_switch_dev;
15 struct typec_altmode;
16 struct fwnode_handle;
17
18 typedef int (*typec_switch_set_fn_t)(struct typec_switch_dev *sw,
19 enum typec_orientation orientation);
20
21 struct typec_switch_desc {
22 struct fwnode_handle *fwnode;
23 typec_switch_set_fn_t set;
24 const char *name;
25 void *drvdata;
26 };
27
28 #if IS_ENABLED(CONFIG_TYPEC)
29
30 struct typec_switch *fwnode_typec_switch_get(struct fwnode_handle *fwnode);
31 void typec_switch_put(struct typec_switch *sw);
32 int typec_switch_set(struct typec_switch *sw,
33 enum typec_orientation orientation);
34
35 struct typec_switch_dev *
36 typec_switch_register(struct device *parent,
37 const struct typec_switch_desc *desc);
38 void typec_switch_unregister(struct typec_switch_dev *sw);
39
40 void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data);
41 void *typec_switch_get_drvdata(struct typec_switch_dev *sw);
42
43 #else
44
45 static inline struct typec_switch *
fwnode_typec_switch_get(struct fwnode_handle * fwnode)46 fwnode_typec_switch_get(struct fwnode_handle *fwnode)
47 {
48 return NULL;
49 }
50
typec_switch_put(struct typec_switch * sw)51 static inline void typec_switch_put(struct typec_switch *sw) {}
52
typec_switch_set(struct typec_switch * sw,enum typec_orientation orientation)53 static inline int typec_switch_set(struct typec_switch *sw,
54 enum typec_orientation orientation)
55 {
56 return 0;
57 }
58
59 static inline struct typec_switch_dev *
typec_switch_register(struct device * parent,const struct typec_switch_desc * desc)60 typec_switch_register(struct device *parent,
61 const struct typec_switch_desc *desc)
62 {
63 return ERR_PTR(-EOPNOTSUPP);
64 }
65
typec_switch_unregister(struct typec_switch_dev * sw)66 static inline void typec_switch_unregister(struct typec_switch_dev *sw) {}
67
typec_switch_set_drvdata(struct typec_switch_dev * sw,void * data)68 static inline void typec_switch_set_drvdata(struct typec_switch_dev *sw, void *data) {}
typec_switch_get_drvdata(struct typec_switch_dev * sw)69 static inline void *typec_switch_get_drvdata(struct typec_switch_dev *sw)
70 {
71 return ERR_PTR(-EOPNOTSUPP);
72 }
73
74 #endif /* CONFIG_TYPEC */
75
typec_switch_get(struct device * dev)76 static inline struct typec_switch *typec_switch_get(struct device *dev)
77 {
78 return fwnode_typec_switch_get(dev_fwnode(dev));
79 }
80
81 struct typec_mux_state {
82 struct typec_altmode *alt;
83 unsigned long mode;
84 void *data;
85 };
86
87 typedef int (*typec_mux_set_fn_t)(struct typec_mux_dev *mux,
88 struct typec_mux_state *state);
89
90 struct typec_mux_desc {
91 struct fwnode_handle *fwnode;
92 typec_mux_set_fn_t set;
93 const char *name;
94 void *drvdata;
95 };
96
97 #if IS_ENABLED(CONFIG_TYPEC)
98
99 struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode);
100 void typec_mux_put(struct typec_mux *mux);
101 int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state);
102
103 struct typec_mux_dev *
104 typec_mux_register(struct device *parent, const struct typec_mux_desc *desc);
105 void typec_mux_unregister(struct typec_mux_dev *mux);
106
107 void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data);
108 void *typec_mux_get_drvdata(struct typec_mux_dev *mux);
109
110 #else
111
fwnode_typec_mux_get(struct fwnode_handle * fwnode)112 static inline struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode)
113 {
114 return NULL;
115 }
116
typec_mux_put(struct typec_mux * mux)117 static inline void typec_mux_put(struct typec_mux *mux) {}
118
typec_mux_set(struct typec_mux * mux,struct typec_mux_state * state)119 static inline int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state)
120 {
121 return 0;
122 }
123
124 static inline struct typec_mux_dev *
typec_mux_register(struct device * parent,const struct typec_mux_desc * desc)125 typec_mux_register(struct device *parent, const struct typec_mux_desc *desc)
126 {
127 return ERR_PTR(-EOPNOTSUPP);
128 }
typec_mux_unregister(struct typec_mux_dev * mux)129 static inline void typec_mux_unregister(struct typec_mux_dev *mux) {}
130
typec_mux_set_drvdata(struct typec_mux_dev * mux,void * data)131 static inline void typec_mux_set_drvdata(struct typec_mux_dev *mux, void *data) {}
typec_mux_get_drvdata(struct typec_mux_dev * mux)132 static inline void *typec_mux_get_drvdata(struct typec_mux_dev *mux)
133 {
134 return ERR_PTR(-EOPNOTSUPP);
135 }
136
137 #endif /* CONFIG_TYPEC */
138
typec_mux_get(struct device * dev)139 static inline struct typec_mux *typec_mux_get(struct device *dev)
140 {
141 return fwnode_typec_mux_get(dev_fwnode(dev));
142 }
143
144 #endif /* __USB_TYPEC_MUX */
145