- "3.0": USB Power Delivery Release 3.0
- "3.1": USB Power Delivery Release 3.1
+What: /sys/class/typec/<port>-{partner|cable}/usb_power_delivery_revision
+Date: January 2021
+Contact: Benson Leung <bleung@chromium.org>
+Description:
+ Revision number of the supported USB Power Delivery
+ specification of the port partner or cable, or 0.0 when USB
+ Power Delivery is not supported.
+
+ Example values:
+ - "2.0": USB Power Delivery Release 2.0
+ - "3.0": USB Power Delivery Release 3.0
+ - "3.1": USB Power Delivery Release 3.1
+
What: /sys/class/typec/<port>/usb_typec_revision
Date: April 2017
Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
enum typec_plug_type type;
struct usb_pd_identity *identity;
unsigned int active:1;
+ u16 pd_revision; /* 0300H = "3.0" */
};
struct typec_partner {
enum typec_accessory accessory;
struct ida mode_ids;
int num_altmodes;
+ u16 pd_revision; /* 0300H = "3.0" */
};
struct typec_port {
}
static DEVICE_ATTR_RO(type);
+static ssize_t usb_power_delivery_revision_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+static DEVICE_ATTR_RO(usb_power_delivery_revision);
+
/* ------------------------------------------------------------------------- */
/* Alternate Modes */
&dev_attr_supports_usb_power_delivery.attr,
&dev_attr_number_of_alternate_modes.attr,
&dev_attr_type.attr,
+ &dev_attr_usb_power_delivery_revision.attr,
NULL
};
partner->usb_pd = desc->usb_pd;
partner->accessory = desc->accessory;
partner->num_altmodes = -1;
+ partner->pd_revision = desc->pd_revision;
if (desc->identity) {
/*
static struct attribute *typec_cable_attrs[] = {
&dev_attr_type.attr,
&dev_attr_plug_type.attr,
+ &dev_attr_usb_power_delivery_revision.attr,
NULL
};
ATTRIBUTE_GROUPS(typec_cable);
cable->type = desc->type;
cable->active = desc->active;
+ cable->pd_revision = desc->pd_revision;
if (desc->identity) {
/*
struct device_attribute *attr,
char *buf)
{
- struct typec_port *p = to_typec_port(dev);
- u16 rev = p->cap->pd_revision;
+ u16 rev = 0;
- return sprintf(buf, "%d.%d\n", (rev >> 8) & 0xff, (rev >> 4) & 0xf);
+ if (is_typec_partner(dev)) {
+ struct typec_partner *partner = to_typec_partner(dev);
+
+ rev = partner->pd_revision;
+ } else if (is_typec_cable(dev)) {
+ struct typec_cable *cable = to_typec_cable(dev);
+
+ rev = cable->pd_revision;
+ } else if (is_typec_port(dev)) {
+ struct typec_port *p = to_typec_port(dev);
+
+ rev = p->cap->pd_revision;
+ }
+ return sysfs_emit(buf, "%d.%d\n", (rev >> 8) & 0xff, (rev >> 4) & 0xf);
}
-static DEVICE_ATTR_RO(usb_power_delivery_revision);
static ssize_t orientation_show(struct device *dev,
struct device_attribute *attr,
* @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.
*/
enum typec_plug_type type;
unsigned int active:1;
struct usb_pd_identity *identity;
+ u16 pd_revision; /* 0300H = "3.0" */
+
};
/*
* @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" */
};
/**