This patch adds 3 APIs to get the typec port power and data type,
and preferred power role by its name string.
Signed-off-by: Li Jun <jun.li@xxxxxxx>
---
drivers/usb/typec/class.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++
include/linux/usb/typec.h | 3 +++
2 files changed, 53 insertions(+)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 53df10d..4c7d18c 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -802,6 +802,12 @@ static const char * const typec_port_types[] = {
[TYPEC_PORT_DRP] = "dual",
};
+static const char * const typec_data_caps[] = {
+ [TYPEC_PORT_DFP] = "host",
+ [TYPEC_PORT_UFP] = "device",
+ [TYPEC_PORT_DRD] = "dual",
+};
+
static const char * const typec_port_types_drp[] = {
[TYPEC_PORT_SRC] = "dual [source] sink",
[TYPEC_PORT_SNK] = "dual source [sink]",
@@ -1252,6 +1258,50 @@ void typec_set_pwr_opmode(struct typec_port *port,
}
EXPORT_SYMBOL_GPL(typec_set_pwr_opmode);
+/**
+ * typec_find_port_power_role - Get the typec port power capability
+ * @name: port power capability string
+ *
+ * This routine is used to find the typec_port_type by its string name.
+ *
+ * Returns typec_port_type if success, otherwise negative error code.
+ */
+int typec_find_port_power_role(const char *name)
+{
+ return match_string(typec_port_types, ARRAY_SIZE(typec_port_types),
+ name);
+}
+EXPORT_SYMBOL_GPL(typec_find_power_type);
+
+/**
+ * typec_find_power_role - Find the typec one specific power role
+ * @name: power role string
+ *
+ * This routine is used to find the typec_role by its string name.
+ *
+ * Returns typec_role if success, otherwise negative error code.
+ */
+int typec_find_power_role(const char *name)
+{
+ return match_string(typec_roles, ARRAY_SIZE(typec_roles), name);
+}
+EXPORT_SYMBOL_GPL(typec_find_preferred_role);
+
+/**
+ * typec_find_port_data_role - Get the typec port data capability
+ * @name: port data capability string
+ *
+ * This routine is used to find the typec_port_data by its string name.
+ *
+ * Returns typec_port_data if success, otherwise negative error code.
+ */
+int typec_find_port_data_role(const char *name)
+{
+ return match_string(typec_data_caps, ARRAY_SIZE(typec_data_caps),
+ name);
+}
+EXPORT_SYMBOL_GPL(typec_find_data_type);
+
/* ------------------------------------------ */
/* API for Multiplexer/DeMultiplexer Switches */
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 672b39b..15f8d9a 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -267,4 +267,7 @@ int typec_set_orientation(struct typec_port *port,
enum typec_orientation orientation);
int typec_set_mode(struct typec_port *port, int mode);
+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);
#endif /* __LINUX_USB_TYPEC_H */
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
