123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2015 Google, Inc
- */
- #define LOG_CATEGORY UCLASS_KEYBOARD
- #include <common.h>
- #include <dm.h>
- #include <keyboard.h>
- #include <log.h>
- static int keyboard_start(struct stdio_dev *sdev)
- {
- struct udevice *dev = sdev->priv;
- struct keyboard_ops *ops = keyboard_get_ops(dev);
- if (ops->start)
- return ops->start(dev);
- return 0;
- }
- static int keyboard_stop(struct stdio_dev *sdev)
- {
- struct udevice *dev = sdev->priv;
- struct keyboard_ops *ops = keyboard_get_ops(dev);
- if (ops->stop)
- return ops->stop(dev);
- return 0;
- }
- static int keyboard_tstc(struct stdio_dev *sdev)
- {
- struct udevice *dev = sdev->priv;
- struct keyboard_priv *priv = dev_get_uclass_priv(dev);
- struct keyboard_ops *ops = keyboard_get_ops(dev);
- /* Just get input to do this for us if we can */
- if (priv->input.dev)
- return input_tstc(&priv->input);
- else if (ops->tstc)
- return ops->tstc(dev);
- return -ENOSYS;
- }
- static int keyboard_getc(struct stdio_dev *sdev)
- {
- struct udevice *dev = sdev->priv;
- struct keyboard_priv *priv = dev_get_uclass_priv(dev);
- struct keyboard_ops *ops = keyboard_get_ops(dev);
- /* Just get input to do this for us if we can */
- if (priv->input.dev)
- return input_getc(&priv->input);
- else if (ops->getc)
- return ops->getc(dev);
- return -ENOSYS;
- }
- static int keyboard_pre_probe(struct udevice *dev)
- {
- struct keyboard_priv *priv = dev_get_uclass_priv(dev);
- struct stdio_dev *sdev = &priv->sdev;
- int ret;
- strlcpy(sdev->name, dev->name, sizeof(sdev->name));
- sdev->flags = DEV_FLAGS_INPUT;
- sdev->getc = keyboard_getc;
- sdev->tstc = keyboard_tstc;
- sdev->start = keyboard_start;
- sdev->stop = keyboard_stop;
- sdev->priv = dev;
- ret = input_init(&priv->input, 0);
- if (ret) {
- debug("%s: Cannot set up input, ret=%d - please add DEBUG to drivers/input/input.c to figure out the cause\n",
- __func__, ret);
- return ret;
- }
- return 0;
- }
- UCLASS_DRIVER(keyboard) = {
- .id = UCLASS_KEYBOARD,
- .name = "keyboard",
- .pre_probe = keyboard_pre_probe,
- .per_device_auto = sizeof(struct keyboard_priv),
- };
|