1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #ifndef __USB_TYPEC_CLASS__
4 #define __USB_TYPEC_CLASS__
5
6 #include <linux/device.h>
7 #include <linux/usb/typec.h>
8
9 struct typec_mux;
10 struct typec_switch;
11 struct usb_device;
12
13 struct typec_plug {
14 struct device dev;
15 enum typec_plug_index index;
16 struct ida mode_ids;
17 int num_altmodes;
18 };
19
20 struct typec_cable {
21 struct device dev;
22 enum typec_plug_type type;
23 struct usb_pd_identity *identity;
24 unsigned int active:1;
25 u16 pd_revision; /* 0300H = "3.0" */
26 };
27
28 struct typec_partner {
29 struct device dev;
30 unsigned int usb_pd:1;
31 struct usb_pd_identity *identity;
32 enum typec_accessory accessory;
33 struct ida mode_ids;
34 int num_altmodes;
35 u16 pd_revision; /* 0300H = "3.0" */
36 enum usb_pd_svdm_ver svdm_version;
37
38 struct usb_power_delivery *pd;
39
40 void (*attach)(struct typec_partner *partner, struct device *dev);
41 void (*deattach)(struct typec_partner *partner, struct device *dev);
42 };
43
44 struct typec_port {
45 unsigned int id;
46 struct device dev;
47 struct ida mode_ids;
48
49 struct usb_power_delivery *pd;
50
51 int prefer_role;
52 enum typec_data_role data_role;
53 enum typec_role pwr_role;
54 enum typec_role vconn_role;
55 enum typec_pwr_opmode pwr_opmode;
56 enum typec_port_type port_type;
57 struct mutex port_type_lock;
58
59 enum typec_orientation orientation;
60 struct typec_switch *sw;
61 struct typec_mux *mux;
62 struct typec_retimer *retimer;
63
64 const struct typec_capability *cap;
65 const struct typec_operations *ops;
66
67 struct typec_connector con;
68
69 /*
70 * REVISIT: Only USB devices for now. If there are others, these need to
71 * be converted into a list.
72 *
73 * NOTE: These may be registered first before the typec_partner, so they
74 * will always have to be kept here instead of struct typec_partner.
75 */
76 struct device *usb2_dev;
77 struct device *usb3_dev;
78 };
79
80 #define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
81 #define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev)
82 #define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev)
83 #define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev)
84
85 extern const struct device_type typec_partner_dev_type;
86 extern const struct device_type typec_cable_dev_type;
87 extern const struct device_type typec_plug_dev_type;
88 extern const struct device_type typec_port_dev_type;
89
90 #define is_typec_partner(dev) ((dev)->type == &typec_partner_dev_type)
91 #define is_typec_cable(dev) ((dev)->type == &typec_cable_dev_type)
92 #define is_typec_plug(dev) ((dev)->type == &typec_plug_dev_type)
93 #define is_typec_port(dev) ((dev)->type == &typec_port_dev_type)
94
95 extern struct class typec_mux_class;
96 extern struct class retimer_class;
97 extern struct class typec_class;
98
99 #if defined(CONFIG_ACPI)
100 int typec_link_ports(struct typec_port *connector);
101 void typec_unlink_ports(struct typec_port *connector);
102 #else
typec_link_ports(struct typec_port * connector)103 static inline int typec_link_ports(struct typec_port *connector) { return 0; }
typec_unlink_ports(struct typec_port * connector)104 static inline void typec_unlink_ports(struct typec_port *connector) { }
105 #endif
106
107 #endif /* __USB_TYPEC_CLASS__ */
108