freebsd-dev/sys/dev/gpio/gpiokeys_codes.c
Oleksandr Tymoshenko 5a333f6f5f 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
2016-05-11 17:57:26 +00:00

147 lines
3.5 KiB
C

/*-
* Copyright (c) 2015 Oleksandr Tymoshenko <gonzo@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <dev/gpio/gpiokeys.h>
#include <gnu/dts/include/dt-bindings/input/linux-event-codes.h>
struct gpiokeys_codemap_entry {
uint32_t linux_code;
uint32_t bsd_code;
};
static struct gpiokeys_codemap_entry gpiokeys_codes_map[] = {
{ KEY_ESC, 1},
{ KEY_1, 2},
{ KEY_2, 3},
{ KEY_3, 4},
{ KEY_4, 5},
{ KEY_5, 6},
{ KEY_6, 7},
{ KEY_7, 8},
{ KEY_8, 9},
{ KEY_9, 10},
{ KEY_0, 11},
{ KEY_MINUS, 12},
{ KEY_EQUAL, 13},
{ KEY_BACKSPACE, 14},
{ KEY_TAB, 15},
{ KEY_Q, 16},
{ KEY_W, 17},
{ KEY_E, 18},
{ KEY_R, 19},
{ KEY_T, 20},
{ KEY_Y, 21},
{ KEY_U, 22},
{ KEY_I, 23},
{ KEY_O, 24},
{ KEY_P, 25},
{ KEY_LEFTBRACE, 26},
{ KEY_RIGHTBRACE, 27},
{ KEY_ENTER, 28},
{ KEY_LEFTCTRL, 29},
{ KEY_A, 30},
{ KEY_S, 31},
{ KEY_D, 32},
{ KEY_F, 33},
{ KEY_G, 34},
{ KEY_H, 35},
{ KEY_J, 36},
{ KEY_K, 37},
{ KEY_L, 38},
{ KEY_SEMICOLON, 39},
{ KEY_APOSTROPHE, 40},
{ KEY_GRAVE, 41},
{ KEY_LEFTSHIFT, 42},
{ KEY_BACKSLASH, 43},
{ KEY_Z, 44},
{ KEY_X, 45},
{ KEY_C, 46},
{ KEY_V, 47},
{ KEY_B, 48},
{ KEY_N, 49},
{ KEY_M, 50},
{ KEY_COMMA, 51},
{ KEY_DOT, 52},
{ KEY_SLASH, 53},
{ KEY_RIGHTSHIFT, 54},
{ KEY_LEFTALT, 56},
{ KEY_SPACE, 57},
{ KEY_CAPSLOCK, 58},
{ KEY_F1, 59},
{ KEY_F2, 60},
{ KEY_F3, 61},
{ KEY_F4, 62},
{ KEY_F5, 63},
{ KEY_F6, 64},
{ KEY_F7, 65},
{ KEY_F8, 66},
{ KEY_F9, 67},
{ KEY_F10, 68},
{ KEY_F11, 87},
{ KEY_F12, 88},
{ KEY_RIGHTCTRL, 90},
{ KEY_SYSRQ, 92},
{ KEY_RIGHTALT, 93},
{ KEY_HOME, GPIOKEY_E0(71)},
{ KEY_UP, GPIOKEY_E0(72)},
{ KEY_PAGEUP, GPIOKEY_E0(73)},
{ KEY_LEFT, GPIOKEY_E0(75)},
{ KEY_RIGHT, GPIOKEY_E0(77)},
{ KEY_END, GPIOKEY_E0(79)},
{ KEY_DOWN, GPIOKEY_E0(80)},
{ KEY_PAGEDOWN, GPIOKEY_E0(81)},
{ KEY_INSERT, GPIOKEY_E0(82)},
{ KEY_DELETE, GPIOKEY_E0(83)},
{ GPIOKEY_NONE, GPIOKEY_NONE}
};
uint32_t
gpiokey_map_linux_code(uint32_t linux_code)
{
int i;
for (i = 0; gpiokeys_codes_map[i].linux_code != GPIOKEY_NONE; i++) {
if (gpiokeys_codes_map[i].linux_code == linux_code)
return (gpiokeys_codes_map[i].bsd_code);
}
return (GPIOKEY_NONE);
}