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27 lines
762 B
C
27 lines
762 B
C
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// SPDX-License-Identifier: GPL-2.0
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#ifndef KEYBOARD_H
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#define KEYBOARD_H
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/*
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* Provides the keyboard interface. It converts incoming key codes to
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* ASCII characters.
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*
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* Copyright (C) 2020 Martin Whitaker.
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*/
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/*
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* The Escape character.
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*/
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#define ESC 27
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/*
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* Checks if a key has been pressed and returns the primary ASCII character
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* corresponding to that key if so, otherwise returns the null character.
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* F1 to F10 are mapped to the corresponding decimal digit (F10 -> 0). All
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* other keys that don't have a corresponding ASCII character are ignored.
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* Characters are only returned for key presses, not key releases. A US
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* keyboard layout is assumed (because we can't easily do anything else).
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*/
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char get_key(void);
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#endif // KEYBOARD_H
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