Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __LINUX_EXTCON_INTERNAL_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __LINUX_EXTCON_INTERNAL_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/extcon-provider.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * struct extcon_dev - An extcon device represents one external connector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * @name:		The name of this extcon device. Parent device name is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *			used if NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * @supported_cable:	Array of supported cable names ending with EXTCON_NONE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *			If supported_cable is NULL, cable name related APIs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *			are disabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * @mutually_exclusive:	Array of mutually exclusive set of cables that cannot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *			be attached simultaneously. The array should be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *			ending with NULL or be NULL (no mutually exclusive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  *			cables). For example, if it is { 0x7, 0x30, 0}, then,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *			{0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *			be attached simulataneously. {0x7, 0} is equivalent to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  *			{0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  *			can be no simultaneous connections.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * @dev:		Device of this extcon.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * @state:		Attach/detach state of this extcon. Do not provide at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  *			register-time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  * @nh_all:		Notifier for the state change events for all supported
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  *			external connectors from this extcon.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * @nh:			Notifier for the state change events from this extcon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * @entry:		To support list of extcon devices so that users can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  *			search for extcon devices based on the extcon name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * @lock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  * @max_supported:	Internal value to store the number of cables.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * @extcon_dev_type:	Device_type struct to provide attribute_groups
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  *			customized for each extcon device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  * @cables:		Sysfs subdirectories. Each represents one cable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  * In most cases, users only need to provide "User initializing data" of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * this struct when registering an extcon. In some exceptional cases,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  * optional callbacks may be needed. However, the values in "internal data"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * are overwritten by register function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct extcon_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	/* Optional user initializing data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	const unsigned int *supported_cable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	const u32 *mutually_exclusive;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	/* Internal data. Please do not set. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	struct device dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	struct raw_notifier_head nh_all;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	struct raw_notifier_head *nh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	struct list_head entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	int max_supported;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	spinlock_t lock;	/* could be called by irq handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	u32 state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	/* /sys/class/extcon/.../cable.n/... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	struct device_type extcon_dev_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	struct extcon_cable *cables;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	/* /sys/class/extcon/.../mutually_exclusive/... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	struct attribute_group attr_g_muex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	struct attribute **attrs_muex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	struct device_attribute *d_attrs_muex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #endif /* __LINUX_EXTCON_INTERNAL_H__ */