1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Copyright (C) 2015 Thomas Chou <thomas@wytron.com.tw>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _MISC_H_
#define _MISC_H_
/*
* Read the device to buffer, optional.
*
* @dev: the device
* @offset: offset to read the device
* @buf: pointer to data buffer
* @size: data size in bytes to read the device
* @return: 0 if OK, -ve on error
*/
int misc_read(struct udevice *dev, int offset, void *buf, int size);
/*
* Write buffer to the device, optional.
*
* @dev: the device
* @offset: offset to write the device
* @buf: pointer to data buffer
* @size: data size in bytes to write the device
* @return: 0 if OK, -ve on error
*/
int misc_write(struct udevice *dev, int offset, void *buf, int size);
/*
* Assert command to the device, optional.
*
* @dev: the device
* @request: command to be sent to the device
* @buf: pointer to buffer related to the requset
* @return: 0 if OK, -ve on error
*/
int misc_ioctl(struct udevice *dev, unsigned long request, void *buf);
/*
* struct misc_ops - Driver model Misc operations
*
* The uclass interface is implemented by all miscellaneous devices which
* use driver model.
*/
struct misc_ops {
/*
* Read the device to buffer, optional.
*
* @dev: the device
* @offset: offset to read the device
* @buf: pointer to data buffer
* @size: data size in bytes to read the device
* @return: 0 if OK, -ve on error
*/
int (*read)(struct udevice *dev, int offset, void *buf, int size);
/*
* Write buffer to the device, optional.
*
* @dev: the device
* @offset: offset to write the device
* @buf: pointer to data buffer
* @size: data size in bytes to write the device
* @return: 0 if OK, -ve on error
*/
int (*write)(struct udevice *dev, int offset, const void *buf,
int size);
/*
* Assert command to the device, optional.
*
* @dev: the device
* @request: command to be sent to the device
* @buf: pointer to buffer related to the requset
* @return: 0 if OK, -ve on error
*/
int (*ioctl)(struct udevice *dev, unsigned long request, void *buf);
};
#endif /* _MISC_H_ */
|
