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; |
} |