projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| e84421d8 SG |
2 | /* |
| 3 | * Copyright (c) 2015 Google, Inc | |
| e84421d8 SG |
4 | */ |
| 5 | ||
| 6 | #include <common.h> | |
| 7 | #include <dm.h> | |
| 8 | #include <keyboard.h> | |
| 9 | ||
| 10 | static int keyboard_start(struct stdio_dev *sdev) | |
| 11 | { | |
| 12 | struct udevice *dev = sdev->priv; | |
| 13 | struct keyboard_ops *ops = keyboard_get_ops(dev); | |
| 14 | ||
| 15 | if (ops->start) | |
| 16 | return ops->start(dev); | |
| 17 | ||
| 18 | return 0; | |
| 19 | } | |
| 20 | ||
| 21 | static int keyboard_stop(struct stdio_dev *sdev) | |
| 22 | { | |
| 23 | struct udevice *dev = sdev->priv; | |
| 24 | struct keyboard_ops *ops = keyboard_get_ops(dev); | |
| 25 | ||
| 26 | if (ops->stop) | |
| 27 | return ops->stop(dev); | |
| 28 | ||
| 29 | return 0; | |
| 30 | } | |
| 31 | ||
| 32 | static int keyboard_tstc(struct stdio_dev *sdev) | |
| 33 | { | |
| 34 | struct udevice *dev = sdev->priv; | |
| 35 | struct keyboard_priv *priv = dev_get_uclass_priv(dev); | |
| 36 | struct keyboard_ops *ops = keyboard_get_ops(dev); | |
| 37 | ||
| 38 | /* Just get input to do this for us if we can */ | |
| 39 | if (priv->input.dev) | |
| 40 | return input_tstc(&priv->input); | |
| 41 | else if (ops->tstc) | |
| 42 | return ops->tstc(dev); | |
| 43 | ||
| 44 | return -ENOSYS; | |
| 45 | } | |
| 46 | ||
| 47 | static int keyboard_getc(struct stdio_dev *sdev) | |
| 48 | { | |
| 49 | struct udevice *dev = sdev->priv; | |
| 50 | struct keyboard_priv *priv = dev_get_uclass_priv(dev); | |
| 51 | struct keyboard_ops *ops = keyboard_get_ops(dev); | |
| 52 | ||
| 53 | /* Just get input to do this for us if we can */ | |
| 54 | if (priv->input.dev) | |
| 55 | return input_getc(&priv->input); | |
| 56 | else if (ops->getc) | |
| 57 | return ops->getc(dev); | |
| 58 | ||
| 59 | return -ENOSYS; | |
| 60 | } | |
| 61 | ||
| 62 | static int keyboard_pre_probe(struct udevice *dev) | |
| 63 | { | |
| 64 | struct keyboard_priv *priv = dev_get_uclass_priv(dev); | |
| 65 | struct stdio_dev *sdev = &priv->sdev; | |
| 66 | int ret; | |
| 67 | ||
| 68 | strlcpy(sdev->name, dev->name, sizeof(sdev->name)); | |
| 69 | sdev->flags = DEV_FLAGS_INPUT; | |
| 70 | sdev->getc = keyboard_getc; | |
| 71 | sdev->tstc = keyboard_tstc; | |
| 72 | sdev->start = keyboard_start; | |
| 73 | sdev->stop = keyboard_stop; | |
| 74 | sdev->priv = dev; | |
| 75 | ret = input_init(&priv->input, 0); | |
| 76 | if (ret) { | |
| 77 | debug("%s: Cannot set up input, ret=%d - please add DEBUG to drivers/input/input.c to figure out the cause\n", | |
| 78 | __func__, ret); | |
| 79 | return ret; | |
| 80 | } | |
| 81 | ||
| 82 | return 0; | |
| 83 | } | |
| 84 | ||
| 85 | UCLASS_DRIVER(keyboard) = { | |
| 86 | .id = UCLASS_KEYBOARD, | |
| 87 | .name = "keyboard", | |
| 88 | .pre_probe = keyboard_pre_probe, | |
| 89 | .per_device_auto_alloc_size = sizeof(struct keyboard_priv), | |
| 90 | }; |