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Add gpiokeys driver
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
This commit is contained in:
Oleksandr Tymoshenko
parent
ce9d1e2acd
commit
5a333f6f5f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=299475
@ -1513,6 +1513,8 @@ dev/gem/if_gem.c optional gem
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dev/gem/if_gem_pci.c optional gem pci
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dev/gem/if_gem_sbus.c optional gem sbus
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dev/gpio/gpiobacklight.c optional gpiobacklight fdt
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dev/gpio/gpiokeys.c optional gpiokeys fdt
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dev/gpio/gpiokeys_codes.c optional gpiokeys fdt
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dev/gpio/gpiobus.c optional gpio \
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dependency "gpiobus_if.h"
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dev/gpio/gpioc.c optional gpio \
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1006
sys/dev/gpio/gpiokeys.c
Normal file
1006
sys/dev/gpio/gpiokeys.c
Normal file
File diff suppressed because it is too large
Load Diff
39
sys/dev/gpio/gpiokeys.h
Normal file
39
sys/dev/gpio/gpiokeys.h
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@ -0,0 +1,39 @@
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/*-
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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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146
sys/dev/gpio/gpiokeys_codes.c
Normal file
146
sys/dev/gpio/gpiokeys_codes.c
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@ -0,0 +1,146 @@
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/*-
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* Copyright (c) 2015 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <dev/gpio/gpiokeys.h>
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#include <gnu/dts/include/dt-bindings/input/linux-event-codes.h>
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struct gpiokeys_codemap_entry {
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uint32_t linux_code;
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uint32_t bsd_code;
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};
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static struct gpiokeys_codemap_entry gpiokeys_codes_map[] = {
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{ KEY_ESC, 1},
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{ KEY_1, 2},
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{ KEY_2, 3},
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{ KEY_3, 4},
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{ KEY_4, 5},
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{ KEY_5, 6},
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{ KEY_6, 7},
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{ KEY_7, 8},
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{ KEY_8, 9},
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{ KEY_9, 10},
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{ KEY_0, 11},
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{ KEY_MINUS, 12},
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{ KEY_EQUAL, 13},
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{ KEY_BACKSPACE, 14},
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{ KEY_TAB, 15},
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{ KEY_Q, 16},
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{ KEY_W, 17},
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{ KEY_E, 18},
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{ KEY_R, 19},
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{ KEY_T, 20},
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{ KEY_Y, 21},
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{ KEY_U, 22},
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{ KEY_I, 23},
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{ KEY_O, 24},
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{ KEY_P, 25},
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{ KEY_LEFTBRACE, 26},
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{ KEY_RIGHTBRACE, 27},
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{ KEY_ENTER, 28},
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{ KEY_LEFTCTRL, 29},
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{ KEY_A, 30},
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{ KEY_S, 31},
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{ KEY_D, 32},
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{ KEY_F, 33},
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{ KEY_G, 34},
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{ KEY_H, 35},
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{ KEY_J, 36},
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{ KEY_K, 37},
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{ KEY_L, 38},
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{ KEY_SEMICOLON, 39},
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{ KEY_APOSTROPHE, 40},
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{ KEY_GRAVE, 41},
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{ KEY_LEFTSHIFT, 42},
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{ KEY_BACKSLASH, 43},
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{ KEY_Z, 44},
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{ KEY_X, 45},
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{ KEY_C, 46},
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{ KEY_V, 47},
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{ KEY_B, 48},
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{ KEY_N, 49},
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{ KEY_M, 50},
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{ KEY_COMMA, 51},
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{ KEY_DOT, 52},
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{ KEY_SLASH, 53},
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{ KEY_RIGHTSHIFT, 54},
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{ KEY_LEFTALT, 56},
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{ KEY_SPACE, 57},
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{ KEY_CAPSLOCK, 58},
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{ KEY_F1, 59},
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{ KEY_F2, 60},
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{ KEY_F3, 61},
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{ KEY_F4, 62},
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{ KEY_F5, 63},
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{ KEY_F6, 64},
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{ KEY_F7, 65},
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{ KEY_F8, 66},
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{ KEY_F9, 67},
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{ KEY_F10, 68},
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{ KEY_F11, 87},
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{ KEY_F12, 88},
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{ KEY_RIGHTCTRL, 90},
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{ KEY_SYSRQ, 92},
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{ KEY_RIGHTALT, 93},
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{ KEY_HOME, GPIOKEY_E0(71)},
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{ KEY_UP, GPIOKEY_E0(72)},
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{ KEY_PAGEUP, GPIOKEY_E0(73)},
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{ KEY_LEFT, GPIOKEY_E0(75)},
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{ KEY_RIGHT, GPIOKEY_E0(77)},
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{ KEY_END, GPIOKEY_E0(79)},
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{ KEY_DOWN, GPIOKEY_E0(80)},
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{ KEY_PAGEDOWN, GPIOKEY_E0(81)},
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{ KEY_INSERT, GPIOKEY_E0(82)},
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{ KEY_DELETE, GPIOKEY_E0(83)},
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{ GPIOKEY_NONE, GPIOKEY_NONE}
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};
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uint32_t
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gpiokey_map_linux_code(uint32_t linux_code)
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{
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int i;
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for (i = 0; gpiokeys_codes_map[i].linux_code != GPIOKEY_NONE; i++) {
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if (gpiokeys_codes_map[i].linux_code == linux_code)
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return (gpiokeys_codes_map[i].bsd_code);
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}
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return (GPIOKEY_NONE);
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}
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