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gpiokey driver implements functional subset of gpiokeys device-tree bindings: https://www.kernel.org/doc/Documentation/devicetree/bindings/input/gpio-keys.txt It acts as a virtual keyboard, so keys are visible through kbdmux(4) Driver maps linux scancodes for most common keys to FreeBSD scancodes and also extends spec by introducing freebsd,code property to specify FreeBSD-native scancodes. Reviewed by: mmel, jmcneill Differential Revision: https://reviews.freebsd.org/D6279
40 lines
1.7 KiB
C
40 lines
1.7 KiB
C
/*-
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* Copyright (c) 2015-2016 Oleksandr Tymoshenko <gonzo@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __GPIOKEYS_H__
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#define __GPIOKEYS_H__
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#define SCAN_KEYCODE_MASK 0xff
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#define SCAN_PREFIX_E0 0x10000000
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#define SCAN_PREFIX_E1 0x20000000
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#define GPIOKEY_E0(k) (SCAN_PREFIX_E0 | k)
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#define GPIOKEY_NONE 0xffffffff
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uint32_t gpiokey_map_linux_code(uint32_t linux_code);
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#endif /* __GPIOKEYS_H__ */
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