kernel_samsung_a34x-permissive/include/linux/external_notify.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
*
* header file supporting usb notify layer
* external notify call chain information
*
* Copyright (C) 2016-2022 Samsung Electronics
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* usb notify layer v3.7 */
#ifndef __EXTERNAL_NOTIFY_H__
#define __EXTERNAL_NOTIFY_H__
#include <linux/notifier.h>
/* external notifier call chain command */
enum external_notify_cmd {
EXTERNAL_NOTIFY_3S_NODEVICE = 1,
EXTERNAL_NOTIFY_DEVICE_CONNECT,
EXTERNAL_NOTIFY_HOSTBLOCK_PRE,
EXTERNAL_NOTIFY_HOSTBLOCK_POST,
EXTERNAL_NOTIFY_MDMBLOCK_PRE,
EXTERNAL_NOTIFY_MDMBLOCK_POST,
EXTERNAL_NOTIFY_POWERROLE,
EXTERNAL_NOTIFY_DEVICEADD,
EXTERNAL_NOTIFY_HOSTBLOCK_EARLY,
EXTERNAL_NOTIFY_VBUS_RESET,
EXTERNAL_NOTIFY_POSSIBLE_USB,
};
/* external notifier call sequence,
* largest priority number device will be called first.
*/
enum external_notify_device {
EXTERNAL_NOTIFY_DEV_MUIC,
EXTERNAL_NOTIFY_DEV_CHARGER,
EXTERNAL_NOTIFY_DEV_PDIC,
EXTERNAL_NOTIFY_DEV_MANAGER,
};
enum external_notify_condev {
EXTERNAL_NOTIFY_NONE = 0,
EXTERNAL_NOTIFY_GPAD,
EXTERNAL_NOTIFY_LANHUB,
};
#ifdef CONFIG_USB_EXTERNAL_NOTIFY
extern int send_external_notify(unsigned long cmd, int data);
extern int usb_external_notify_register(struct notifier_block *nb,
notifier_fn_t notifier, int listener);
extern int usb_external_notify_unregister(struct notifier_block *nb);
extern void external_notifier_init(void);
#else
static inline int send_external_notify(unsigned long cmd,
int data) {return 0; }
static inline int usb_external_notify_register(struct notifier_block *nb,
notifier_fn_t notifier, int listener) {return 0; }
static inline int usb_external_notify_unregister(struct notifier_block *nb)
{return 0; }
static inline void external_notifier_init(void) {}
#endif
#endif /* __EXTERNAL_NOTIFY_H__ */