drivers/usb/typec/class.h

   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
  12 struct typec_plug {
  13         struct device                   dev;
  14         enum typec_plug_index           index;
  15         struct ida                      mode_ids;
  16         int                             num_altmodes;
  17 };
  18
  19 struct typec_cable {
  20         struct device                   dev;
  21         enum typec_plug_type            type;
  22         struct usb_pd_identity          *identity;
  23         unsigned int                    active:1;
  24         u16                             pd_revision; /* 0300H = "3.0" */
  25 };
  26
  27 struct typec_partner {
  28         struct device                   dev;
  29         unsigned int                    usb_pd:1;
  30         struct usb_pd_identity          *identity;
  31         enum typec_accessory            accessory;
  32         struct ida                      mode_ids;
  33         int                             num_altmodes;
  34         u16                             pd_revision; /* 0300H = "3.0" */
  35         enum usb_pd_svdm_ver            svdm_version;
  36
  37         struct usb_power_delivery       *pd;
  38 };
  39
  40 struct typec_port {
  41         unsigned int                    id;
  42         struct device                   dev;
  43         struct ida                      mode_ids;
  44
  45         struct usb_power_delivery       *pd;
  46
  47         int                             prefer_role;
  48         enum typec_data_role            data_role;
  49         enum typec_role                 pwr_role;
  50         enum typec_role                 vconn_role;
  51         enum typec_pwr_opmode           pwr_opmode;
  52         enum typec_port_type            port_type;
  53         struct mutex                    port_type_lock;
  54
  55         enum typec_orientation          orientation;
  56         struct typec_switch             *sw;
  57         struct typec_mux                *mux;
  58         struct typec_retimer            *retimer;
  59
  60         const struct typec_capability   *cap;
  61         const struct typec_operations   *ops;
  62 };
  63
  64 #define to_typec_port(_dev_) container_of(_dev_, struct typec_port, dev)
  65 #define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev)
  66 #define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev)
  67 #define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev)
  68
  69 extern const struct device_type typec_partner_dev_type;
  70 extern const struct device_type typec_cable_dev_type;
  71 extern const struct device_type typec_plug_dev_type;
  72 extern const struct device_type typec_port_dev_type;
  73
  74 #define is_typec_partner(dev) ((dev)->type == &typec_partner_dev_type)
  75 #define is_typec_cable(dev) ((dev)->type == &typec_cable_dev_type)
  76 #define is_typec_plug(dev) ((dev)->type == &typec_plug_dev_type)
  77 #define is_typec_port(dev) ((dev)->type == &typec_port_dev_type)
  78
  79 extern struct class typec_mux_class;
  80 extern struct class retimer_class;
  81 extern struct class typec_class;
  82
  83 #if defined(CONFIG_ACPI)
  84 int typec_link_ports(struct typec_port *connector);
  85 void typec_unlink_ports(struct typec_port *connector);
  86 #else
  87 static inline int typec_link_ports(struct typec_port *connector) { return 0; }
  88 static inline void typec_unlink_ports(struct typec_port *connector) { }
  89 #endif
  90
  91 #endif /* __USB_TYPEC_CLASS__ */