blob: 032191d61abc58a21ca0dfaac0a16262071d124f [file] [log] [blame]
Philippe Reynes30d66db2020-07-24 18:19:45 +02001// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2020 Philippe Reynes <philippe.reynes@softathome.com>
4 *
5 * Based on led-uclass.c
6 */
7
Patrick Delaunayb953ec22021-04-27 11:02:19 +02008#define LOG_CATEGORY UCLASS_BUTTON
9
Philippe Reynes30d66db2020-07-24 18:19:45 +020010#include <common.h>
11#include <button.h>
12#include <dm.h>
13#include <dm/uclass-internal.h>
14
15int button_get_by_label(const char *label, struct udevice **devp)
16{
17 struct udevice *dev;
18 struct uclass *uc;
19
20 uclass_id_foreach_dev(UCLASS_BUTTON, dev, uc) {
Simon Glasscaa4daa2020-12-03 16:55:18 -070021 struct button_uc_plat *uc_plat = dev_get_uclass_plat(dev);
Philippe Reynes30d66db2020-07-24 18:19:45 +020022
23 /* Ignore the top-level button node */
24 if (uc_plat->label && !strcmp(label, uc_plat->label))
25 return uclass_get_device_tail(dev, 0, devp);
26 }
27
28 return -ENODEV;
29}
30
31enum button_state_t button_get_state(struct udevice *dev)
32{
33 struct button_ops *ops = button_get_ops(dev);
34
35 if (!ops->get_state)
36 return -ENOSYS;
37
38 return ops->get_state(dev);
39}
40
Dzmitry Sankouskiea6fdc12023-01-22 18:21:24 +030041int button_get_code(struct udevice *dev)
42{
43 struct button_ops *ops = button_get_ops(dev);
44
45 if (!ops->get_code)
46 return -ENOSYS;
47
48 return ops->get_code(dev);
49}
50
Philippe Reynes30d66db2020-07-24 18:19:45 +020051UCLASS_DRIVER(button) = {
52 .id = UCLASS_BUTTON,
53 .name = "button",
Simon Glasscaa4daa2020-12-03 16:55:18 -070054 .per_device_plat_auto = sizeof(struct button_uc_plat),
Philippe Reynes30d66db2020-07-24 18:19:45 +020055};