1 /* SPDX-License-Identifier: GPL-2.0-only */
4  * - linux/include/linux/extcon.h for extcon consumer device driver.
74 #define EXTCON_DISP_HDMI	40	/* High-Definition Multimedia Interface */
75 #define EXTCON_DISP_MHL		41	/* Mobile High-Definition Link */
79 #define EXTCON_DISP_HMD		45	/* Head-Mounted Display */
93  * When adding the new extcon property, they *must* have
99  * The naming style of property
100  * : EXTCON_PROP_[type]_[property name]
102  * EXTCON_PROP_USB_[property name]	: USB property
103  * EXTCON_PROP_CHG_[property name]	: Charger property
104  * EXTCON_PROP_JACK_[property name]	: Jack property
105  * EXTCON_PROP_DISP_[property name]	: Display property
111  * - EXTCON_PROP_USB_VBUS
115  * - EXTCON_PROP_USB_TYPEC_POLARITY
119  * - EXTCON_PROP_USB_SS (SuperSpeed)
131 #define EXTCON_PROP_USB_CNT	(EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
136 #define EXTCON_PROP_CHG_CNT	(EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1)
141 #define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1)
146  * - EXTCON_PROP_DISP_HPD (Hot Plug Detect)
157 #define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1)
160  * Define the type of property's value.
162  * Define the property's value as union type. Because each property
166 	int intval;	/* type : integer (intval) */
176 int extcon_get_state(struct extcon_dev *edev, unsigned int id);
179  * Following APIs get the property of each external connector.
181  * and the 'prop' indicates the extcon property.
183  * And extcon_get_property_capability() get the capability of the property
185  * property of each external connector based on the id and property.
187 int extcon_get_property(struct extcon_dev *edev, unsigned int id,
188 				unsigned int prop,
190 int extcon_get_property_capability(struct extcon_dev *edev,
191 				unsigned int id, unsigned int prop);
195  * the change of both state and property value for each external connector.
202 int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
204 int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
206 int devm_extcon_register_notifier(struct device *dev,
207 				struct extcon_dev *edev, unsigned int id,
210 				struct extcon_dev *edev, unsigned int id,
213 int extcon_register_notifier_all(struct extcon_dev *edev,
215 int extcon_unregister_notifier_all(struct extcon_dev *edev,
217 int devm_extcon_register_notifier_all(struct device *dev,
230 						     int index);
236 static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)  in extcon_get_state()
241 static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,  in extcon_get_property()
242 				unsigned int prop,  in extcon_get_property()
248 static inline int extcon_get_property_capability(struct extcon_dev *edev,  in extcon_get_property_capability()
249 				unsigned int id, unsigned int prop)  in extcon_get_property_capability()
254 static inline int extcon_register_notifier(struct extcon_dev *edev,  in extcon_register_notifier()
255 				unsigned int id, struct notifier_block *nb)  in extcon_register_notifier()
260 static inline int extcon_unregister_notifier(struct extcon_dev *edev,  in extcon_unregister_notifier()
261 				unsigned int id, struct notifier_block *nb)  in extcon_unregister_notifier()
266 static inline int devm_extcon_register_notifier(struct device *dev,  in devm_extcon_register_notifier()
267 				struct extcon_dev *edev, unsigned int id,  in devm_extcon_register_notifier()
270 	return -ENOSYS;  in devm_extcon_register_notifier()
274 				struct extcon_dev *edev, unsigned int id,  in devm_extcon_unregister_notifier()
277 static inline int extcon_register_notifier_all(struct extcon_dev *edev,  in extcon_register_notifier_all()
283 static inline int extcon_unregister_notifier_all(struct extcon_dev *edev,  in extcon_unregister_notifier_all()
289 static inline int devm_extcon_register_notifier_all(struct device *dev,  in devm_extcon_register_notifier_all()
302 	return ERR_PTR(-ENODEV);  in extcon_get_extcon_dev()
307 	return ERR_PTR(-ENODEV);  in extcon_find_edev_by_node()
311 				int index)  in extcon_get_edev_by_phandle()
313 	return ERR_PTR(-ENODEV);  in extcon_get_edev_by_phandle()
328        int cable_index;
333 static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,  in extcon_register_interest()
337 	return -EINVAL;  in extcon_register_interest()
340 static inline int extcon_unregister_interest(struct extcon_specific_cable_nb *obj)  in extcon_unregister_interest()
342 	return -EINVAL;  in extcon_unregister_interest()