blob: 55381edc9808f4c5cccd385eb0c96407e9517c74 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Thomas Chou4395e062015-10-07 20:20:51 +08002/*
3 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
Thomas Chou4395e062015-10-07 20:20:51 +08004 */
5
6#include <common.h>
7#include <dm.h>
8#include <errno.h>
9#include <misc.h>
10
11/*
12 * Implement a miscellaneous uclass for those do not fit other more
13 * general classes. A set of generic read, write and ioctl methods may
14 * be used to access the device.
15 */
16
17int misc_read(struct udevice *dev, int offset, void *buf, int size)
18{
19 const struct misc_ops *ops = device_get_ops(dev);
20
21 if (!ops->read)
22 return -ENOSYS;
23
24 return ops->read(dev, offset, buf, size);
25}
26
27int misc_write(struct udevice *dev, int offset, void *buf, int size)
28{
29 const struct misc_ops *ops = device_get_ops(dev);
30
31 if (!ops->write)
32 return -ENOSYS;
33
34 return ops->write(dev, offset, buf, size);
35}
36
37int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
38{
39 const struct misc_ops *ops = device_get_ops(dev);
40
41 if (!ops->ioctl)
42 return -ENOSYS;
43
44 return ops->ioctl(dev, request, buf);
45}
46
Stephen Warrenb647f552016-08-08 09:41:33 -060047int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
48 void *rx_msg, int rx_size)
49{
50 const struct misc_ops *ops = device_get_ops(dev);
51
52 if (!ops->call)
53 return -ENOSYS;
54
55 return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
56}
57
Mario Six440bc112018-07-31 14:24:13 +020058int misc_set_enabled(struct udevice *dev, bool val)
59{
60 const struct misc_ops *ops = device_get_ops(dev);
61
62 if (!ops->set_enabled)
63 return -ENOSYS;
64
65 return ops->set_enabled(dev, val);
66}
67
Thomas Chou4395e062015-10-07 20:20:51 +080068UCLASS_DRIVER(misc) = {
69 .id = UCLASS_MISC,
70 .name = "misc",
Simon Glasse5d61162018-12-27 13:24:36 -070071#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
72 .post_bind = dm_scan_fdt_dev,
73#endif
Thomas Chou4395e062015-10-07 20:20:51 +080074};