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
9struct typec_mux;
10struct typec_switch;
11struct usb_device;
12
13struct typec_plug {
14 struct device dev;
15 enum typec_plug_index index;
16 struct ida mode_ids;
17 int num_altmodes;
18};
19
20struct 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 enum usb_pd_svdm_ver svdm_version;
27};
28
29struct typec_partner {
30 struct device dev;
31 unsigned int usb_pd:1;
32 struct usb_pd_identity *identity;
33 enum typec_accessory accessory;
34 struct ida mode_ids;
35 int num_altmodes;
36 u16 pd_revision; /* 0300H = "3.0" */
37 enum usb_pd_svdm_ver svdm_version;
38 enum usb_mode usb_mode;
39 u8 usb_capability;
40
41 struct usb_power_delivery *pd;
42
43 void (*attach)(struct typec_partner *partner, struct device *dev);
44 void (*deattach)(struct typec_partner *partner, struct device *dev);
45};
46
47struct typec_port {
48 unsigned int id;
49 struct device dev;
50 struct ida mode_ids;
51
52 struct usb_power_delivery *pd;
53
54 int prefer_role;
55 enum typec_data_role data_role;
56 enum typec_role pwr_role;
57 enum typec_role vconn_role;
58 enum typec_pwr_opmode pwr_opmode;
59 enum typec_port_type port_type;
60 enum usb_mode usb_mode;
61 struct mutex port_type_lock;
62 struct mutex partner_link_lock;
63
64 enum typec_orientation orientation;
65 struct typec_switch *sw;
66 struct typec_mux *mux;
67 struct typec_retimer *retimer;
68
69 const struct typec_capability *cap;
70 const struct typec_operations *ops;
71
72 struct typec_connector con;
73
74 /*
75 * REVISIT: Only USB devices for now. If there are others, these need to
76 * be converted into a list.
77 *
78 * NOTE: These may be registered first before the typec_partner, so they
79 * will always have to be kept here instead of struct typec_partner.
80 */
81 struct device *usb2_dev;
82 struct device *usb3_dev;
83};
84
85#define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
86#define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev)
87#define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev)
88#define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev)
89
90extern const struct device_type typec_partner_dev_type;
91extern const struct device_type typec_cable_dev_type;
92extern const struct device_type typec_plug_dev_type;
93extern const struct device_type typec_port_dev_type;
94
95#define is_typec_partner(dev) ((dev)->type == &typec_partner_dev_type)
96#define is_typec_cable(dev) ((dev)->type == &typec_cable_dev_type)
97#define is_typec_plug(dev) ((dev)->type == &typec_plug_dev_type)
98#define is_typec_port(dev) ((dev)->type == &typec_port_dev_type)
99
100extern const struct class typec_mux_class;
101extern const struct class retimer_class;
102extern const struct class typec_class;
103
104#if defined(CONFIG_ACPI)
105int typec_link_ports(struct typec_port *connector);
106void typec_unlink_ports(struct typec_port *connector);
107#else
108static inline int typec_link_ports(struct typec_port *connector) { return 0; }
109static inline void typec_unlink_ports(struct typec_port *connector) { }
110#endif
111
112#endif /* __USB_TYPEC_CLASS__ */
113

source code of linux/drivers/usb/typec/class.h