blob: cbfacc3801a39c5ecfc810666fece37f46f8a765 [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
Patrick Delaunayb953ec22021-04-27 11:02:19 +02006#define LOG_CATEGORY UCLASS_MISC
7
Thomas Chou4395e062015-10-07 20:20:51 +08008#include <common.h>
9#include <dm.h>
10#include <errno.h>
11#include <misc.h>
12
13/*
14 * Implement a miscellaneous uclass for those do not fit other more
15 * general classes. A set of generic read, write and ioctl methods may
16 * be used to access the device.
17 */
18
19int misc_read(struct udevice *dev, int offset, void *buf, int size)
20{
21 const struct misc_ops *ops = device_get_ops(dev);
22
23 if (!ops->read)
24 return -ENOSYS;
25
26 return ops->read(dev, offset, buf, size);
27}
28
29int misc_write(struct udevice *dev, int offset, void *buf, int size)
30{
31 const struct misc_ops *ops = device_get_ops(dev);
32
33 if (!ops->write)
34 return -ENOSYS;
35
36 return ops->write(dev, offset, buf, size);
37}
38
39int misc_ioctl(struct udevice *dev, unsigned long request, void *buf)
40{
41 const struct misc_ops *ops = device_get_ops(dev);
42
43 if (!ops->ioctl)
44 return -ENOSYS;
45
46 return ops->ioctl(dev, request, buf);
47}
48
Stephen Warrenb647f552016-08-08 09:41:33 -060049int misc_call(struct udevice *dev, int msgid, void *tx_msg, int tx_size,
50 void *rx_msg, int rx_size)
51{
52 const struct misc_ops *ops = device_get_ops(dev);
53
54 if (!ops->call)
55 return -ENOSYS;
56
57 return ops->call(dev, msgid, tx_msg, tx_size, rx_msg, rx_size);
58}
59
Mario Six440bc112018-07-31 14:24:13 +020060int misc_set_enabled(struct udevice *dev, bool val)
61{
62 const struct misc_ops *ops = device_get_ops(dev);
63
64 if (!ops->set_enabled)
65 return -ENOSYS;
66
67 return ops->set_enabled(dev, val);
68}
69
Thomas Chou4395e062015-10-07 20:20:51 +080070UCLASS_DRIVER(misc) = {
71 .id = UCLASS_MISC,
72 .name = "misc",
Simon Glass414cc152021-08-07 07:24:03 -060073#if CONFIG_IS_ENABLED(OF_REAL)
Simon Glasse5d61162018-12-27 13:24:36 -070074 .post_bind = dm_scan_fdt_dev,
75#endif
Thomas Chou4395e062015-10-07 20:20:51 +080076};