projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 30d66db7 PR |
1 | // 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 | ||
| b953ec2b PD |
8 | #define LOG_CATEGORY UCLASS_BUTTON |
| 9 | ||
| d678a59d | 10 | #include <common.h> |
| 30d66db7 PR |
11 | #include <button.h> |
| 12 | #include <dm.h> | |
| 13 | #include <dm/uclass-internal.h> | |
| 14 | ||
| 15 | int 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) { | |
| caa4daa2 | 21 | struct button_uc_plat *uc_plat = dev_get_uclass_plat(dev); |
| 30d66db7 PR |
22 | |
| 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 | ||
| 31 | enum 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 | ||
| ea6fdc13 DS |
41 | int 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 | ||
| 30d66db7 PR |
51 | UCLASS_DRIVER(button) = { |
| 52 | .id = UCLASS_BUTTON, | |
| 53 | .name = "button", | |
| caa4daa2 | 54 | .per_device_plat_auto = sizeof(struct button_uc_plat), |
| 30d66db7 | 55 | }; |