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https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <keyboard.h>
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#include <log.h>
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static int keyboard_start(struct stdio_dev *sdev)
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{
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struct udevice *dev = sdev->priv;
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struct keyboard_ops *ops = keyboard_get_ops(dev);
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if (ops->start)
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return ops->start(dev);
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return 0;
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}
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static int keyboard_stop(struct stdio_dev *sdev)
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{
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struct udevice *dev = sdev->priv;
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struct keyboard_ops *ops = keyboard_get_ops(dev);
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if (ops->stop)
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return ops->stop(dev);
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return 0;
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}
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static int keyboard_tstc(struct stdio_dev *sdev)
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{
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struct udevice *dev = sdev->priv;
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struct keyboard_priv *priv = dev_get_uclass_priv(dev);
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struct keyboard_ops *ops = keyboard_get_ops(dev);
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/* Just get input to do this for us if we can */
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if (priv->input.dev)
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return input_tstc(&priv->input);
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else if (ops->tstc)
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return ops->tstc(dev);
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return -ENOSYS;
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}
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static int keyboard_getc(struct stdio_dev *sdev)
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{
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struct udevice *dev = sdev->priv;
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struct keyboard_priv *priv = dev_get_uclass_priv(dev);
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struct keyboard_ops *ops = keyboard_get_ops(dev);
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/* Just get input to do this for us if we can */
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if (priv->input.dev)
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return input_getc(&priv->input);
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else if (ops->getc)
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return ops->getc(dev);
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return -ENOSYS;
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}
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static int keyboard_pre_probe(struct udevice *dev)
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{
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struct keyboard_priv *priv = dev_get_uclass_priv(dev);
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struct stdio_dev *sdev = &priv->sdev;
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int ret;
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strlcpy(sdev->name, dev->name, sizeof(sdev->name));
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sdev->flags = DEV_FLAGS_INPUT;
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sdev->getc = keyboard_getc;
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sdev->tstc = keyboard_tstc;
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sdev->start = keyboard_start;
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sdev->stop = keyboard_stop;
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sdev->priv = dev;
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ret = input_init(&priv->input, 0);
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if (ret) {
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debug("%s: Cannot set up input, ret=%d - please add DEBUG to drivers/input/input.c to figure out the cause\n",
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__func__, ret);
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return ret;
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}
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return 0;
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}
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UCLASS_DRIVER(keyboard) = {
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.id = UCLASS_KEYBOARD,
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.name = "keyboard",
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.pre_probe = keyboard_pre_probe,
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.per_device_auto = sizeof(struct keyboard_priv),
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};
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