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Release 4.12 include/linux/extcon.h

Directory: include/linux
/*
 *  External connector (extcon) class driver
 *
 * Copyright (C) 2015 Samsung Electronics
 * Author: Chanwoo Choi <cw00.choi@samsung.com>
 *
 * Copyright (C) 2012 Samsung Electronics
 * Author: Donggeun Kim <dg77.kim@samsung.com>
 * Author: MyungJoo Ham <myungjoo.ham@samsung.com>
 *
 * based on switch class driver
 * Copyright (C) 2008 Google, Inc.
 * Author: Mike Lockwood <lockwood@android.com>
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
*/

#ifndef __LINUX_EXTCON_H__

#define __LINUX_EXTCON_H__

#include <linux/device.h>

/*
 * Define the type of supported external connectors
 */

#define EXTCON_TYPE_USB		BIT(0)	
/* USB connector */

#define EXTCON_TYPE_CHG		BIT(1)	
/* Charger connector */

#define EXTCON_TYPE_JACK	BIT(2)	
/* Jack connector */

#define EXTCON_TYPE_DISP	BIT(3)	
/* Display connector */

#define EXTCON_TYPE_MISC	BIT(4)	
/* Miscellaneous connector */

/*
 * Define the unique id of supported external connectors
 */

#define EXTCON_NONE		0

/* USB external connector */

#define EXTCON_USB		1

#define EXTCON_USB_HOST		2

/*
 * Charging external connector
 *
 * When one SDP charger connector was reported, we should also report
 * the USB connector, which means EXTCON_CHG_USB_SDP should always
 * appear together with EXTCON_USB. The same as ACA charger connector,
 * EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
 *
 * The EXTCON_CHG_USB_SLOW connector can provide at least 500mA of
 * current at 5V. The EXTCON_CHG_USB_FAST connector can provide at
 * least 1A of current at 5V.
 */

#define EXTCON_CHG_USB_SDP	5	
/* Standard Downstream Port */

#define EXTCON_CHG_USB_DCP	6	
/* Dedicated Charging Port */

#define EXTCON_CHG_USB_CDP	7	
/* Charging Downstream Port */

#define EXTCON_CHG_USB_ACA	8	
/* Accessory Charger Adapter */

#define EXTCON_CHG_USB_FAST	9

#define EXTCON_CHG_USB_SLOW	10

#define EXTCON_CHG_WPT		11	
/* Wireless Power Transfer */

#define EXTCON_CHG_USB_PD	12	
/* USB Power Delivery */

/* Jack external connector */

#define EXTCON_JACK_MICROPHONE	20

#define EXTCON_JACK_HEADPHONE	21

#define EXTCON_JACK_LINE_IN	22

#define EXTCON_JACK_LINE_OUT	23

#define EXTCON_JACK_VIDEO_IN	24

#define EXTCON_JACK_VIDEO_OUT	25

#define EXTCON_JACK_SPDIF_IN	26	
/* Sony Philips Digital InterFace */

#define EXTCON_JACK_SPDIF_OUT	27

/* Display external connector */

#define EXTCON_DISP_HDMI	40	
/* High-Definition Multimedia Interface */

#define EXTCON_DISP_MHL		41	
/* Mobile High-Definition Link */

#define EXTCON_DISP_DVI		42	
/* Digital Visual Interface */

#define EXTCON_DISP_VGA		43	
/* Video Graphics Array */

#define EXTCON_DISP_DP		44	
/* Display Port */

#define EXTCON_DISP_HMD		45	
/* Head-Mounted Display */

/* Miscellaneous external connector */

#define EXTCON_DOCK		60

#define EXTCON_JIG		61

#define EXTCON_MECHANICAL	62


#define EXTCON_NUM		63

/*
 * Define the property of supported external connectors.
 *
 * When adding the new extcon property, they *must* have
 * the type/value/default information. Also, you *have to*
 * modify the EXTCON_PROP_[type]_START/END definitions
 * which mean the range of the supported properties
 * for each extcon type.
 *
 * The naming style of property
 * : EXTCON_PROP_[type]_[property name]
 *
 * EXTCON_PROP_USB_[property name]      : USB property
 * EXTCON_PROP_CHG_[property name]      : Charger property
 * EXTCON_PROP_JACK_[property name]     : Jack property
 * EXTCON_PROP_DISP_[property name]     : Display property
 */

/*
 * Properties of EXTCON_TYPE_USB.
 *
 * - EXTCON_PROP_USB_VBUS
 * @type:       integer (intval)
 * @value:      0 (low) or 1 (high)
 * @default:    0 (low)
 * - EXTCON_PROP_USB_TYPEC_POLARITY
 * @type:       integer (intval)
 * @value:      0 (normal) or 1 (flip)
 * @default:    0 (normal)
 * - EXTCON_PROP_USB_SS (SuperSpeed)
 * @type:       integer (intval)
 * @value:      0 (USB/USB2) or 1 (USB3)
 * @default:    0 (USB/USB2)
 *
 */

#define EXTCON_PROP_USB_VBUS		0

#define EXTCON_PROP_USB_TYPEC_POLARITY	1

#define EXTCON_PROP_USB_SS		2


#define EXTCON_PROP_USB_MIN		0

#define EXTCON_PROP_USB_MAX		2

#define EXTCON_PROP_USB_CNT	(EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)

/* Properties of EXTCON_TYPE_CHG. */

#define EXTCON_PROP_CHG_MIN		50

#define EXTCON_PROP_CHG_MAX		50

#define EXTCON_PROP_CHG_CNT	(EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1)

/* Properties of EXTCON_TYPE_JACK. */

#define EXTCON_PROP_JACK_MIN		100

#define EXTCON_PROP_JACK_MAX		100

#define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1)

/*
 * Properties of EXTCON_TYPE_DISP.
 *
 * - EXTCON_PROP_DISP_HPD (Hot Plug Detect)
 * @type:       integer (intval)
 * @value:      0 (no hpd) or 1 (hpd)
 * @default:    0 (no hpd)
 *
 */

#define EXTCON_PROP_DISP_HPD		150

/* Properties of EXTCON_TYPE_DISP. */

#define EXTCON_PROP_DISP_MIN		150

#define EXTCON_PROP_DISP_MAX		151

#define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1)

/*
 * Define the type of property's value.
 *
 * Define the property's value as union type. Because each property
 * would need the different data type to store it.
 */

union extcon_property_value {
	
int intval;	/* type : integer (intval) */
};

struct extcon_cable;
struct extcon_dev;

#if IS_ENABLED(CONFIG_EXTCON)

/*
 * Following APIs are for notifiers or configurations.
 * Notifiers are the external port and connection devices.
 */
extern int extcon_dev_register(struct extcon_dev *edev);
extern void extcon_dev_unregister(struct extcon_dev *edev);
extern int devm_extcon_dev_register(struct device *dev,
				    struct extcon_dev *edev);
extern void devm_extcon_dev_unregister(struct device *dev,
				       struct extcon_dev *edev);
extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);

/*
 * Following APIs control the memory of extcon device.
 */
extern struct extcon_dev *extcon_dev_allocate(const unsigned int *cable);
extern void extcon_dev_free(struct extcon_dev *edev);
extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
						   const unsigned int *cable);
extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);

/*
 * get/set_state access each bit of the 32b encoded state value.
 * They are used to access the status of each cable based on the cable id.
 */
extern int extcon_get_state(struct extcon_dev *edev, unsigned int id);
extern int extcon_set_state(struct extcon_dev *edev, unsigned int id,
				   bool cable_state);
extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
				bool cable_state);
/*
 * Synchronize the state and property data for a specific external connector.
 */
extern int extcon_sync(struct extcon_dev *edev, unsigned int id);

/*
 * get/set_property access the property value of each external connector.
 * They are used to access the property of each cable based on the property id.
 */
extern int extcon_get_property(struct extcon_dev *edev, unsigned int id,
				unsigned int prop,
				union extcon_property_value *prop_val);
extern int extcon_set_property(struct extcon_dev *edev, unsigned int id,
				unsigned int prop,
				union extcon_property_value prop_val);
extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,
				unsigned int prop,
				union extcon_property_value prop_val);

/*
 * get/set_property_capability set the capability of the property for each
 * external connector. They are used to set the capability of the property
 * of each external connector based on the id and property.
 */
extern int extcon_get_property_capability(struct extcon_dev *edev,
				unsigned int id, unsigned int prop);
extern int extcon_set_property_capability(struct extcon_dev *edev,
				unsigned int id, unsigned int prop);

/*
 * Following APIs are to monitor the status change of the external connectors.
 * extcon_register_notifier(*edev, id, *nb) : Register a notifier block
 *                      for specific external connector of the extcon.
 * extcon_register_notifier_all(*edev, *nb) : Register a notifier block
 *                      for all supported external connectors of the extcon.
 */
extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
				    struct notifier_block *nb);
extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
				    struct notifier_block *nb);
extern int devm_extcon_register_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);
extern void devm_extcon_unregister_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);

extern int extcon_register_notifier_all(struct extcon_dev *edev,
				struct notifier_block *nb);
extern int extcon_unregister_notifier_all(struct extcon_dev *edev,
				struct notifier_block *nb);
extern int devm_extcon_register_notifier_all(struct device *dev,
				struct extcon_dev *edev,
				struct notifier_block *nb);
extern void devm_extcon_unregister_notifier_all(struct device *dev,
				struct extcon_dev *edev,
				struct notifier_block *nb);

/*
 * Following API get the extcon device from devicetree.
 * This function use phandle of devicetree to get extcon device directly.
 */
extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
						     int index);

/* Following API to get information of extcon device */
extern const char *extcon_get_edev_name(struct extcon_dev *edev);


#else /* CONFIG_EXTCON */

static inline int extcon_dev_register(struct extcon_dev *edev) { return 0; }

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MyungJoo Ham15100.00%1100.00%
Total15100.00%1100.00%


static inline void extcon_dev_unregister(struct extcon_dev *edev) { }

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MyungJoo Ham11100.00%1100.00%
Total11100.00%1100.00%


static inline int devm_extcon_dev_register(struct device *dev, struct extcon_dev *edev) { return -EINVAL; }

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Sangjung Woo21100.00%1100.00%
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static inline void devm_extcon_dev_unregister(struct device *dev, struct extcon_dev *edev) { }

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Sangjung Woo16100.00%1100.00%
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static inline struct extcon_dev *extcon_dev_allocate(const unsigned int *cable) { return ERR_PTR(-ENOSYS); }

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Chanwoo Choi22100.00%3100.00%
Total22100.00%3100.00%


static inline void extcon_dev_free(struct extcon_dev *edev) { }

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Chanwoo Choi11100.00%2100.00%
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static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, const unsigned int *cable) { return ERR_PTR(-ENOSYS); }

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Chanwoo Choi27100.00%3100.00%
Total27100.00%3100.00%


static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }

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Chanwoo Choi11100.00%2100.00%
Total11100.00%2100.00%


static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id) { return 0; }

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MyungJoo Ham1578.95%125.00%
Chanwoo Choi421.05%375.00%
Total19100.00%4100.00%


static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id, bool cable_state) { return 0; }

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MyungJoo Ham1881.82%125.00%
Chanwoo Choi418.18%375.00%
Total22100.00%4100.00%


static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, bool cable_state) { return 0; }

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Chanwoo Choi22100.00%1100.00%
Total22100.00%1100.00%


static inline int extcon_sync(struct extcon_dev *edev, unsigned int id) { return 0; }

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Chanwoo Choi1473.68%150.00%
Kishon Vijay Abraham I526.32%150.00%
Total19100.00%2100.00%


static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id, unsigned int prop, union extcon_property_value *prop_val) { return 0; }

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Chanwoo Choi28100.00%1100.00%
Total28100.00%1100.00%


static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id, unsigned int prop, union extcon_property_value prop_val) { return 0; }

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Chanwoo Choi1970.37%266.67%
Kishon Vijay Abraham I829.63%133.33%
Total27100.00%3100.00%


static inline int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id, unsigned int prop, union extcon_property_value prop_val) { return 0; }

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PersonTokensPropCommitsCommitProp
Chanwoo Choi1659.26%150.00%
Kishon Vijay Abraham I1140.74%150.00%
Total27100.00%2100.00%


static inline int extcon_get_property_capability(struct extcon_dev *edev, unsigned int id, unsigned int prop) { return 0; }

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Kishon Vijay Abraham I1669.57%266.67%
Chanwoo Choi730.43%133.33%
Total23100.00%3100.00%


static inline int extcon_set_property_capability(struct extcon_dev *edev, unsigned int id, unsigned int prop) { return 0; }

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Kishon Vijay Abraham I23100.00%2100.00%
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static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name) { return NULL; }

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Donggeun Kim17100.00%1100.00%
Total17100.00%1100.00%


static inline int extcon_register_notifier(struct extcon_dev *edev, unsigned int id, struct notifier_block *nb) { return 0; }

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Donggeun Kim2083.33%133.33%
Chanwoo Choi416.67%266.67%
Total24100.00%3100.00%


static inline int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id, struct notifier_block *nb) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Donggeun Kim2083.33%133.33%
Chanwoo Choi416.67%266.67%
Total24100.00%3100.00%


static inline int devm_extcon_register_notifier(struct device *dev, struct extcon_dev *edev, unsigned int id, struct notifier_block *nb) { return -ENOSYS; }

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Chanwoo Choi30100.00%1100.00%
Total30100.00%1100.00%


static inline void devm_extcon_unregister_notifier(struct device *dev, struct extcon_dev *edev, unsigned int id, struct notifier_block *nb) { }

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Chanwoo Choi25100.00%1100.00%
Total25100.00%1100.00%


static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index) { return ERR_PTR(-ENODEV); }

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Chanwoo Choi24100.00%1100.00%
Total24100.00%1100.00%

#endif /* CONFIG_EXTCON */ /* * Following structure and API are deprecated. EXTCON remains the function * definition to prevent the build break. */ struct extcon_specific_cable_nb { struct notifier_block *user_nb; int cable_index; struct extcon_dev *edev; unsigned long previous_value; };
static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj, const char *extcon_name, const char *cable_name, struct notifier_block *nb) { return -EINVAL; }

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PersonTokensPropCommitsCommitProp
MyungJoo Ham2993.55%150.00%
Chanwoo Choi26.45%150.00%
Total31100.00%2100.00%


static inline int extcon_unregister_interest(struct extcon_specific_cable_nb *obj) { return -EINVAL; }

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PersonTokensPropCommitsCommitProp
MyungJoo Ham1275.00%133.33%
Chanwoo Choi425.00%266.67%
Total16100.00%3100.00%


static inline int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id) { return extcon_get_state(edev, id); }

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Chanwoo Choi24100.00%1100.00%
Total24100.00%1100.00%


static inline int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id, bool cable_state) { return extcon_set_state_sync(edev, id, cable_state); }

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Chanwoo Choi29100.00%2100.00%
Total29100.00%2100.00%

#endif /* __LINUX_EXTCON_H__ */

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PersonTokensPropCommitsCommitProp
Chanwoo Choi93668.92%2165.62%
MyungJoo Ham16712.30%26.25%
Donggeun Kim1027.51%13.12%
Sangjung Woo674.93%13.12%
Kishon Vijay Abraham I634.64%26.25%
Chris Zhong151.10%26.25%
Guenter Roeck60.44%13.12%
Baolin Wang10.07%13.12%
Mark Brown10.07%13.12%
Total1358100.00%32100.00%
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