android_kernel_samsung_msm8976/include/linux/muic/muic_notifier.h
LuK1337 fc9499e55a Import latest Samsung release
* Package version: T713XXU2BQCO

Change-Id: I293d9e7f2df458c512d59b7a06f8ca6add610c99
2017-04-18 03:43:52 +02:00

72 lines
2.4 KiB
C

/*
* include/linux/muic/muic_notifier.h
*
* header file supporting MUIC notifier call chain information
*
* Copyright (C) 2010 Samsung Electronics
* Seung-Jin Hahn <sjin.hahn@samsung.com>
*
* 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
*
*/
#ifndef __MUIC_NOTIFIER_H__
#define __MUIC_NOTIFIER_H__
/* MUIC notifier call chain command */
typedef enum {
MUIC_NOTIFY_CMD_DETACH = 0,
MUIC_NOTIFY_CMD_ATTACH,
MUIC_NOTIFY_CMD_LOGICALLY_DETACH,
MUIC_NOTIFY_CMD_LOGICALLY_ATTACH,
} muic_notifier_cmd_t;
/* MUIC notifier call sequence,
* largest priority number device will be called first. */
typedef enum {
MUIC_NOTIFY_DEV_DOCK = 0,
MUIC_NOTIFY_DEV_MHL,
MUIC_NOTIFY_DEV_USB,
MUIC_NOTIFY_DEV_TSP,
MUIC_NOTIFY_DEV_CHARGER,
MUIC_NOTIFY_DEV_CPUIDLE,
MUIC_NOTIFY_DEV_CPUFREQ
} muic_notifier_device_t;
struct muic_notifier_struct {
muic_attached_dev_t attached_dev;
muic_notifier_cmd_t cmd;
struct blocking_notifier_head notifier_call_chain;
};
#define MUIC_NOTIFIER_BLOCK(name) \
struct notifier_block (name)
/* muic notifier init/notify function
* this function is for JUST MUIC device driver.
* DON'T use function anywhrer else!!
*/
extern void muic_notifier_attach_attached_dev(muic_attached_dev_t new_dev);
extern void muic_notifier_detach_attached_dev(muic_attached_dev_t cur_dev);
extern void muic_notifier_logically_attach_attached_dev(muic_attached_dev_t new_dev);
extern void muic_notifier_logically_detach_attached_dev(muic_attached_dev_t cur_dev);
/* muic notifier register/unregister API
* for used any where want to receive muic attached device attach/detach. */
extern int muic_notifier_register(struct notifier_block *nb,
notifier_fn_t notifier, muic_notifier_device_t listener);
extern int muic_notifier_unregister(struct notifier_block *nb);
#endif /* __MUIC_NOTIFIER_H__ */