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/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/types.h>
/* USB Type-C Specification releases */
#define USB_TYPEC_REV_1_0 0x100 /* 1.0 */
#define USB_TYPEC_REV_1_1 0x110 /* 1.1 */
#define USB_TYPEC_REV_1_2 0x120 /* 1.2 */
#define USB_TYPEC_REV_1_3 0x130 /* 1.3 */
#define USB_TYPEC_REV_1_4 0x140 /* 1.4 */
#define USB_TYPEC_REV_2_0 0x200 /* 2.0 */
struct typec_partner;
struct typec_cable;
struct typec_plug;
struct typec_port;
struct fwnode_handle;
struct device;
enum typec_port_type {
enum typec_port_data {
enum typec_plug_type {
enum typec_data_role {
enum typec_role {
enum typec_pwr_opmode {
enum typec_accessory {
enum typec_orientation {
* struct enter_usb_data - Enter_USB Message details
* @eudo: Enter_USB Data Object
* @active_link_training: Active Cable Plug Link Training
* @active_link_training is a flag that should be set with uni-directional SBRX
* communication, and left 0 with passive cables and with bi-directional SBRX
* communication.
struct enter_usb_data {
u32 eudo;
unsigned char active_link_training:1;
* struct usb_pd_identity - USB Power Delivery identity data
* @id_header: ID Header VDO
* @cert_stat: Cert Stat VDO
* @product: Product VDO
* @vdo: Product Type Specific VDOs
* USB power delivery Discover Identity command response data.
* REVISIT: This is USB Power Delivery specific information, so this structure
* probable belongs to USB Power Delivery header file once we have them.
struct usb_pd_identity {
u32 id_header;
u32 cert_stat;
u32 product;
u32 vdo[3];
int typec_partner_set_identity(struct typec_partner *partner);
int typec_cable_set_identity(struct typec_cable *cable);
* struct typec_altmode_desc - USB Type-C Alternate Mode Descriptor
* @svid: Standard or Vendor ID
* @mode: Index of the Mode
* @vdo: VDO returned by Discover Modes USB PD command
* @roles: Only for ports. DRP if the mode is available in both roles
* Description of an Alternate Mode which a connector, cable plug or partner
* supports.
struct typec_altmode_desc {
u16 svid;
u8 mode;
u32 vdo;
/* Only used with ports */
enum typec_port_data roles;
void typec_partner_set_pd_revision(struct typec_partner *partner, u16 pd_revision);
int typec_partner_set_num_altmodes(struct typec_partner *partner, int num_altmodes);
struct typec_altmode
*typec_partner_register_altmode(struct typec_partner *partner,
const struct typec_altmode_desc *desc);
int typec_plug_set_num_altmodes(struct typec_plug *plug, int num_altmodes);
struct typec_altmode
*typec_plug_register_altmode(struct typec_plug *plug,
const struct typec_altmode_desc *desc);
struct typec_altmode
*typec_port_register_altmode(struct typec_port *port,
const struct typec_altmode_desc *desc);
void typec_unregister_altmode(struct typec_altmode *altmode);
struct typec_port *typec_altmode2port(struct typec_altmode *alt);
void typec_altmode_update_active(struct typec_altmode *alt, bool active);
enum typec_plug_index {
* struct typec_plug_desc - USB Type-C Cable Plug Descriptor
* @index: SOP Prime for the plug connected to DFP and SOP Double Prime for the
* plug connected to UFP
* Represents USB Type-C Cable Plug.
struct typec_plug_desc {
enum typec_plug_index index;
* struct typec_cable_desc - USB Type-C Cable Descriptor
* @type: The plug type from USB PD Cable VDO
* @active: Is the cable active or passive
* @identity: Result of Discover Identity command
* @pd_revision: USB Power Delivery Specification revision if supported
* Represents USB Type-C Cable attached to USB Type-C port.
struct typec_cable_desc {
enum typec_plug_type type;
unsigned int active:1;
struct usb_pd_identity *identity;
u16 pd_revision; /* 0300H = "3.0" */
* struct typec_partner_desc - USB Type-C Partner Descriptor
* @usb_pd: USB Power Delivery support
* @accessory: Audio, Debug or none.
* @identity: Discover Identity command data
* @pd_revision: USB Power Delivery Specification Revision if supported
* Details about a partner that is attached to USB Type-C port. If @identity
* member exists when partner is registered, a directory named "identity" is
* created to sysfs for the partner device.
* @pd_revision is based on the setting of the "Specification Revision" field
* in the message header on the initial "Source Capabilities" message received
* from the partner, or a "Request" message received from the partner, depending
* on whether our port is a Sink or a Source.
struct typec_partner_desc {
unsigned int usb_pd:1;
enum typec_accessory accessory;
struct usb_pd_identity *identity;
u16 pd_revision; /* 0300H = "3.0" */
* struct typec_operations - USB Type-C Port Operations
* @try_role: Set data role preference for DRP port
* @dr_set: Set Data Role
* @pr_set: Set Power Role
* @vconn_set: Source VCONN
* @port_type_set: Set port type
struct typec_operations {
int (*try_role)(struct typec_port *port, int role);
int (*dr_set)(struct typec_port *port, enum typec_data_role role);
int (*pr_set)(struct typec_port *port, enum typec_role role);
int (*vconn_set)(struct typec_port *port, enum typec_role role);
int (*port_type_set)(struct typec_port *port,
enum typec_port_type type);
enum usb_pd_svdm_ver {
SVDM_VER_1_0 = 0,
SVDM_VER_2_0 = 1,
* struct typec_capability - USB Type-C Port Capabilities
* @type: Supported power role of the port
* @data: Supported data role of the port
* @revision: USB Type-C Specification release. Binary coded decimal
* @pd_revision: USB Power Delivery Specification revision if supported
* @svdm_version: USB PD Structured VDM version if supported
* @prefer_role: Initial role preference (DRP ports).
* @accessory: Supported Accessory Modes
* @fwnode: Optional fwnode of the port
* @driver_data: Private pointer for driver specific info
* @ops: Port operations vector
* Static capabilities of a single USB Type-C port.
struct typec_capability {
enum typec_port_type type;
enum typec_port_data data;
u16 revision; /* 0120H = "1.2" */
u16 pd_revision; /* 0300H = "3.0" */
enum usb_pd_svdm_ver svdm_version;
int prefer_role;
enum typec_accessory accessory[TYPEC_MAX_ACCESSORY];
unsigned int orientation_aware:1;
struct fwnode_handle *fwnode;
void *driver_data;
const struct typec_operations *ops;
/* Specific to try_role(). Indicates the user want's to clear the preference. */
struct typec_port *typec_register_port(struct device *parent,
const struct typec_capability *cap);
void typec_unregister_port(struct typec_port *port);
struct typec_partner *typec_register_partner(struct typec_port *port,
struct typec_partner_desc *desc);
void typec_unregister_partner(struct typec_partner *partner);
struct typec_cable *typec_register_cable(struct typec_port *port,
struct typec_cable_desc *desc);
void typec_unregister_cable(struct typec_cable *cable);
struct typec_cable *typec_cable_get(struct typec_port *port);
void typec_cable_put(struct typec_cable *cable);
int typec_cable_is_active(struct typec_cable *cable);
struct typec_plug *typec_register_plug(struct typec_cable *cable,
struct typec_plug_desc *desc);
void typec_unregister_plug(struct typec_plug *plug);
void typec_set_data_role(struct typec_port *port, enum typec_data_role role);
void typec_set_pwr_role(struct typec_port *port, enum typec_role role);
void typec_set_vconn_role(struct typec_port *port, enum typec_role role);
void typec_set_pwr_opmode(struct typec_port *port, enum typec_pwr_opmode mode);
int typec_set_orientation(struct typec_port *port,
enum typec_orientation orientation);
enum typec_orientation typec_get_orientation(struct typec_port *port);
int typec_set_mode(struct typec_port *port, int mode);
void *typec_get_drvdata(struct typec_port *port);
int typec_find_pwr_opmode(const char *name);
int typec_find_orientation(const char *name);
int typec_find_port_power_role(const char *name);
int typec_find_power_role(const char *name);
int typec_find_port_data_role(const char *name);
void typec_partner_set_svdm_version(struct typec_partner *partner,
enum usb_pd_svdm_ver svdm_version);
int typec_get_negotiated_svdm_version(struct typec_port *port);
#endif /* __LINUX_USB_TYPEC_H */