48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* u_tcm.h
|
|
*
|
|
* Utility definitions for the tcm function
|
|
*
|
|
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
|
|
*/
|
|
|
|
#ifndef U_TCM_H
|
|
#define U_TCM_H
|
|
|
|
#include <linux/usb/composite.h>
|
|
|
|
/**
|
|
* @dependent: optional dependent module. Meant for legacy gadget.
|
|
* If non-null its refcount will be increased when a tpg is created and
|
|
* decreased when tpg is dropped.
|
|
* @dep_lock: lock for dependent module operations.
|
|
* @ready: true if the dependent module information is set.
|
|
* @can_attach: true a function can be bound to gadget
|
|
* @has_dep: true if there is a dependent module
|
|
*
|
|
*/
|
|
struct f_tcm_opts {
|
|
struct usb_function_instance func_inst;
|
|
struct module *dependent;
|
|
struct mutex dep_lock;
|
|
bool ready;
|
|
bool can_attach;
|
|
bool has_dep;
|
|
|
|
/*
|
|
* Callbacks to be removed when legacy tcm gadget disappears.
|
|
*
|
|
* If you use the new function registration interface
|
|
* programmatically, you MUST set these callbacks to
|
|
* something sensible (e.g. probe/remove the composite).
|
|
*/
|
|
int (*tcm_register_callback)(struct usb_function_instance *);
|
|
void (*tcm_unregister_callback)(struct usb_function_instance *);
|
|
};
|
|
|
|
#endif /* U_TCM_H */
|