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Ignore whitespace Rev 1198 → Rev 1199

/C-OSD/C-Epilepsy/buttons.c
0,0 → 1,64
/****************************************************************************
* Copyright (C) 2011 by Claas Anders "CaScAdE" Rathje *
* admiralcascade@gmail.com *
* Project-URL: http://www.mylifesucks.de/oss/c-epilepsy/ *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
****************************************************************************/
 
#include "buttons.h"
 
volatile uint8_t BUTTONS;
 
void buttons_init() {
DDRD &= ~((1 << PD4) | (1 << PD5)); // switches are input
PORTD |= ((1 << PD4) | (1 << PD5)); // pullups for switches
 
// unmask pin change interrupts 28 and 29
PCMSK3 |= ((1 << PCINT28) | (1 << PCINT29));
 
// enable PCINT31..24
PCICR |= (1 << PCIE3);
}
 
ISR(PCINT3_vect) {
uint8_t raw = PIND; // for different buttons
// mode
if (!(raw & (1 << MODE))) {
BUTTONS |= (1 << MODE);
}
// set
if (!(raw & (1 << SET))) {
BUTTONS |= (1 << SET);
}
}
 
uint8_t mode_pressed() {
if (BUTTONS & (1 << MODE)) {
BUTTONS &= ~(1 << MODE);
CEPILEPSYFLAGS |= CEPI_DIRTYEEPROM;
return 1;
}
return 0;
}
 
uint8_t set_pressed() {
if (BUTTONS & (1 << SET)) {
BUTTONS &= ~(1 << SET);
CEPILEPSYFLAGS |= CEPI_DIRTYEEPROM;
return 1;
}
return 0;
}