Release 4.14 include/linux/extcon.h
/*
* External Connector (extcon) framework
*
* 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 properties 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 register/unregister the extcon device. */
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);
/* Following APIs allocate/free the memory of the 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);
/* Synchronize the state and property value for each external connector. */
extern int extcon_sync(struct extcon_dev *edev, unsigned int id);
/*
* Following APIs get/set the connected state of each external connector.
* The 'id' argument indicates the defined external connector.
*/
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 state);
extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
bool state);
/*
* Following APIs get/set the property of each external connector.
* The 'id' argument indicates the defined external connector
* and the 'prop' indicates the extcon property.
*
* And extcon_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(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);
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 register the notifier block in order to detect
* the change of both state and property value for each external connector.
*
* 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 APIs get the extcon_dev from devicetree or by through extcon name.
*/
extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
int index);
/* Following API get the name 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
static inline void extcon_dev_unregister(struct extcon_dev *edev) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 11 | 100.00% | 1 | 100.00% |
| Total | 11 | 100.00% | 1 | 100.00% |
static inline int devm_extcon_dev_register(struct device *dev,
struct extcon_dev *edev)
{
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sangjung Woo | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
static inline void devm_extcon_dev_unregister(struct device *dev,
struct extcon_dev *edev) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Sangjung Woo | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
static inline struct extcon_dev *extcon_dev_allocate(const unsigned int *cable)
{
return ERR_PTR(-ENOSYS);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 22 | 100.00% | 3 | 100.00% |
| Total | 22 | 100.00% | 3 | 100.00% |
static inline void extcon_dev_free(struct extcon_dev *edev) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 11 | 100.00% | 2 | 100.00% |
| Total | 11 | 100.00% | 2 | 100.00% |
static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
const unsigned int *cable)
{
return ERR_PTR(-ENOSYS);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 27 | 100.00% | 3 | 100.00% |
| Total | 27 | 100.00% | 3 | 100.00% |
static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 11 | 100.00% | 2 | 100.00% |
| Total | 11 | 100.00% | 2 | 100.00% |
static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 15 | 78.95% | 1 | 25.00% |
| Chanwoo Choi | 4 | 21.05% | 3 | 75.00% |
| Total | 19 | 100.00% | 4 | 100.00% |
static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id,
bool state)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 17 | 77.27% | 1 | 20.00% |
| Chanwoo Choi | 5 | 22.73% | 4 | 80.00% |
| Total | 22 | 100.00% | 5 | 100.00% |
static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
bool state)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 22 | 100.00% | 2 | 100.00% |
| Total | 22 | 100.00% | 2 | 100.00% |
static inline int extcon_sync(struct extcon_dev *edev, unsigned int id)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 14 | 73.68% | 1 | 50.00% |
| Kishon Vijay Abraham I | 5 | 26.32% | 1 | 50.00% |
| Total | 19 | 100.00% | 2 | 100.00% |
static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,
unsigned int prop,
union extcon_property_value *prop_val)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 28 | 100.00% | 1 | 100.00% |
| Total | 28 | 100.00% | 1 | 100.00% |
static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id,
unsigned int prop,
union extcon_property_value prop_val)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 19 | 70.37% | 2 | 66.67% |
| Kishon Vijay Abraham I | 8 | 29.63% | 1 | 33.33% |
| Total | 27 | 100.00% | 3 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 16 | 59.26% | 1 | 50.00% |
| Kishon Vijay Abraham I | 11 | 40.74% | 1 | 50.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
static inline int extcon_get_property_capability(struct extcon_dev *edev,
unsigned int id, unsigned int prop)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kishon Vijay Abraham I | 16 | 69.57% | 2 | 66.67% |
| Chanwoo Choi | 7 | 30.43% | 1 | 33.33% |
| Total | 23 | 100.00% | 3 | 100.00% |
static inline int extcon_set_property_capability(struct extcon_dev *edev,
unsigned int id, unsigned int prop)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kishon Vijay Abraham I | 23 | 100.00% | 2 | 100.00% |
| Total | 23 | 100.00% | 2 | 100.00% |
static inline int extcon_register_notifier(struct extcon_dev *edev,
unsigned int id, struct notifier_block *nb)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Donggeun Kim | 20 | 83.33% | 1 | 33.33% |
| Chanwoo Choi | 4 | 16.67% | 2 | 66.67% |
| Total | 24 | 100.00% | 3 | 100.00% |
static inline int extcon_unregister_notifier(struct extcon_dev *edev,
unsigned int id, struct notifier_block *nb)
{
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Donggeun Kim | 20 | 83.33% | 1 | 33.33% |
| Chanwoo Choi | 4 | 16.67% | 2 | 66.67% |
| Total | 24 | 100.00% | 3 | 100.00% |
static inline int devm_extcon_register_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb)
{
return -ENOSYS;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static inline void devm_extcon_unregister_notifier(struct device *dev,
struct extcon_dev *edev, unsigned int id,
struct notifier_block *nb) { }
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
{
return ERR_PTR(-ENODEV);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 21 | 100.00% | 2 | 100.00% |
| Total | 21 | 100.00% | 2 | 100.00% |
static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
int index)
{
return ERR_PTR(-ENODEV);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
#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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 29 | 93.55% | 1 | 50.00% |
| Chanwoo Choi | 2 | 6.45% | 1 | 50.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
static inline int extcon_unregister_interest(struct extcon_specific_cable_nb *obj)
{
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| MyungJoo Ham | 12 | 75.00% | 1 | 33.33% |
| Chanwoo Choi | 4 | 25.00% | 2 | 66.67% |
| Total | 16 | 100.00% | 3 | 100.00% |
#endif /* __LINUX_EXTCON_H__ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Chanwoo Choi | 920 | 70.34% | 23 | 67.65% |
| MyungJoo Ham | 163 | 12.46% | 2 | 5.88% |
| Donggeun Kim | 73 | 5.58% | 1 | 2.94% |
| Sangjung Woo | 66 | 5.05% | 1 | 2.94% |
| Kishon Vijay Abraham I | 63 | 4.82% | 2 | 5.88% |
| Chris Zhong | 15 | 1.15% | 2 | 5.88% |
| Guenter Roeck | 6 | 0.46% | 1 | 2.94% |
| Baolin Wang | 1 | 0.08% | 1 | 2.94% |
| Mark Brown | 1 | 0.08% | 1 | 2.94% |
| Total | 1308 | 100.00% | 34 | 100.00% |
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