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