1/* ----------------------------------------------------------------------------
2 * Copyright (c) Huawei Technologies Co., Ltd. 2021-2021. All rights reserved.
3 * Description: LiteOS USB Driver Config Data Stream HeadFile
4 * Author: Yannik Li
5 * Create: 2021-02-21
6 * Redistribution and use in source and binary forms, with or without modification,
7 * are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
14 * to endorse or promote products derived from this software without specific prior written
15 * permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
18 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
23 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 * --------------------------------------------------------------------------- */
28/* ----------------------------------------------------------------------------
29 * Notice of Export Control Law
30 * ===============================================
31 * Huawei LiteOS may be subject to applicable export control laws and regulations, which might
32 * include those applicable to Huawei LiteOS of U.S. and the country in which you are located.
33 * Import, export and usage of Huawei LiteOS in any manner by you shall be in compliance with such
34 * applicable export control laws and regulations.
35 * --------------------------------------------------------------------------- */
36
37#ifndef LITEOS_USB_HANDLE_H
38#define LITEOS_USB_HANDLE_H
39
40/************************************************************************************
41 * Included Files
42 ************************************************************************************/
43
44#include "gadget/usbdev.h"
45#include "usb_obj.h"
46/************************************************************************************
47 * Public Functions
48 ************************************************************************************/
49
50#ifdef __cplusplus
51#if __cplusplus
52//extern "C" {
53#endif /* __cplusplus */
54#endif /* __cplusplus */
55
56struct usb_handle {
57  char *name;
58  int fd;
59  struct list_head entry;
60  struct UsbHandleOps *ops;
61  struct usb_obj *obj;
62  void *priv;
63};
64
65struct UsbHandleOps {
66  int (*open)(struct usb_handle *handle);
67  int (*close)(struct usb_handle *handle);
68  int (*read)(struct usb_handle *handle, void *buffer, size_t len);
69  int (*write)(struct usb_handle *handle, void *buffer, size_t len);
70  int (*ioctl)(struct usb_handle *handle, int cmd, void *arg);
71  void *(*mmap)(struct usb_handle *handle, uint32_t size);
72  int (*poll)(struct usb_handle *handle, int timeout);
73};
74
75extern int register_handle(char *devName, struct UsbHandleOps *ops, void *priv, struct usb_obj *obj);
76extern int unregister_handle(const char *devName);
77extern int alloc_fd_for_handle(void);
78extern int handle_open(const char *name);
79extern int handle_close(int fd);
80extern int handle_read(int fd, void *buffer, size_t len);
81extern int handle_write(int fd, void *buffer, size_t len);
82extern int handle_ioctl(int fd, int cmd, void *arg);
83extern void *handle_mmap(int fd, uint32_t size);
84extern int handle_poll(int fd, int timeout);
85
86#ifdef __cplusplus
87#if __cplusplus
88//}
89#endif /* __cplusplus */
90#endif /* __cplusplus */
91
92#endif /* LITEOS_USB_OBJ_H */
93