/* SPDX-License-Identifier: GPL-2.0 */#ifndef __LINUX_EXTCON_INTERNAL_H__#define __LINUX_EXTCON_INTERNAL_H__ #include <linux/extcon-provider.h> /** * struct extcon_dev - An extcon device represents one external connector. * @name:		The name of this extcon device. Parent device name is *			used if NULL. * @supported_cable:	Array of supported cable names ending with EXTCON_NONE. *			If supported_cable is NULL, cable name related APIs *			are disabled. * @mutually_exclusive:	Array of mutually exclusive set of cables that cannot *			be attached simultaneously. The array should be *			ending with 0 or be NULL (no mutually exclusive cables). *			For example, if it is {0x7, 0x30, 0}, then, *			{0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot *			be attached simulataneously. {0x7, 0} is equivalent to *			{0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there *			can be no simultaneous connections. * @dev:		Device of this extcon. * @id:			Unique device ID of this extcon. * @state:		Attach/detach state of this extcon. Do not provide at *			register-time. * @nh_all:		Notifier for the state change events for all supported *			external connectors from this extcon. * @nh:			Notifier for the state change events from this extcon * @entry:		To support list of extcon devices so that users can *			search for extcon devices based on the extcon name. * @lock:		Protects device state and serialises device registration * @max_supported:	Internal value to store the number of cables. * @extcon_dev_type:	Device_type struct to provide attribute_groups *			customized for each extcon device. * @cables:		Sysfs subdirectories. Each represents one cable. * * In most cases, users only need to provide "User initializing data" of * this struct when registering an extcon. In some exceptional cases, * optional callbacks may be needed. However, the values in "internal data" * are overwritten by register function. */struct extcon_dev {	/* Optional user initializing data */	const char *name;	const unsigned int *supported_cable;	const u32 *mutually_exclusive; 	/* Internal data. Please do not set. */	struct device dev;	unsigned int id;	struct raw_notifier_head nh_all;	struct raw_notifier_head *nh;	struct list_head entry;	int max_supported;	spinlock_t lock;	/* could be called by irq handler */	u32 state; 	/* /sys/class/extcon/.../cable.n/... */	struct device_type extcon_dev_type;	struct extcon_cable *cables; 	/* /sys/class/extcon/.../mutually_exclusive/... */	struct attribute_group attr_g_muex;	struct attribute **attrs_muex;	struct device_attribute *d_attrs_muex;}; #endif /* __LINUX_EXTCON_INTERNAL_H__ */