#ifndef adc_h #define adc_h /* adc.h */ /* avr.adc - AVR ADC module. {{{ * * Copyright (C) 2005 Thomas Burg * * 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, or * (at your option) any later version. * * 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. * * Contact : * Email: burg AT efrei DOT fr * }}} */ /* Different name for AVR with auto-trigger support. */ #if !defined (__AVR_ATmega128__) # define ADCSR ADCSRA #endif #ifdef HOST /* No hardware on host. */ # define ADCSRA 1 # define ADIF 0 extern uint16_t ADC; /** Table that the user can update to simulate an ADC. */ extern uint16_t adc_values[8]; #endif /* defined (HOST) */ /** Initialise ADC. */ void adc_init (void); /** Choose and start measure on ADC line. */ void adc_start (uint8_t c); /** Check if measure is finished. */ #define adc_checkf() bit_is_set (ADCSR, ADIF) /** Read measure. */ #define adc_read() ADC #endif /* adc_h */