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trezor-firmware/legacy/emulator/buttons.c

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/*
* This file is part of the Trezor project, https://trezor.io/
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*
* Copyright (C) 2017 Saleem Rashid <trezor@saleemrashid.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "buttons.h"
#include <SDL.h>
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uint16_t buttonRead(void) {
uint16_t state = 0;
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const uint8_t *scancodes = SDL_GetKeyboardState(NULL);
if (scancodes[SDL_SCANCODE_LEFT]) {
state |= BTN_PIN_NO;
}
if (scancodes[SDL_SCANCODE_RIGHT]) {
state |= BTN_PIN_YES;
}
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return ~state;
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}