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https://github.com/eddyem/stm32samples.git
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75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
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* keycodes.c
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*
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* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include "keycodes.h"
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/*
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* Keyboard buffer:
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* buf[1]: MOD
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* buf[2]: reserved
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* buf[3]..buf[8] - keycodes 1..6
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*/
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static uint8_t buf[9] = {2,0,0,0,0,0,0,0,0};
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#define _(x) (x|0x80)
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// array for keycodes according to ASCII table; MSB is MOD_SHIFT flag
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static const uint8_t keycodes[] = {
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// space !"#$%&'
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KEY_SPACE, _(KEY_1), _(KEY_QUOTE), _(KEY_3), _(KEY_4), _(KEY_5), _(KEY_7), KEY_QUOTE,
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// ()*+,-./
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_(KEY_9), _(KEY_0), _(KEY_8), _(KEY_EQUAL), KEY_COMMA, KEY_MINUS, KEY_PERIOD, KEY_SLASH,
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// 0..9
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39, 30, 31, 32, 33, 34, 35, 36, 37, 38,
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// :;<=>?@
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_(KEY_SEMICOLON), KEY_SEMICOLON, _(KEY_COMMA), KEY_EQUAL, _(KEY_PERIOD), _(KEY_SLASH), _(KEY_2),
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// A..Z: for a in $(seq 0 25); do printf "$((a+132)),"; done
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132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,
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// [\]^_`
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KEY_LEFT_BRACE, KEY_BACKSLASH, KEY_RIGHT_BRACE, _(KEY_6), _(KEY_MINUS), KEY_TILDE,
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// a..z: for a in $(seq 0 25); do printf "$((a+4)),"; done
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4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,
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// {|}~
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_(KEY_LEFT_BRACE), _(KEY_BACKSLASH), _(KEY_RIGHT_BRACE), _(KEY_TILDE)
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};
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uint8_t *set_key_buf(uint8_t MOD, uint8_t KEY){
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buf[1] = MOD;
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buf[3] = KEY;
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return buf;
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}
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/**
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* return buffer for sending symbol "ltr" with addition modificator mod
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*/
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uint8_t *press_key_mod(char ltr, uint8_t mod){
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uint8_t MOD = 0;
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uint8_t KEY = 0;
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if(ltr > 31){
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KEY = keycodes[ltr - 32];
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if(KEY & 0x80){
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MOD = MOD_SHIFT;
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KEY &= 0x7f;
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}
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}else if (ltr == '\n') KEY = KEY_ENTER;
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buf[1] = MOD | mod;
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buf[3] = KEY;
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return buf;
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}
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