akutester/soft/1wire.h

#ifndef _1WIRE_H
#define _1WIRE_H

#define SEARCHROM
#define INITST

#ifdef INITST
extern unsigned char initst;
#endif

#include <avr/io.h>

#define _1WPORT PORTC
#define _1WDDR DDRC
#define _1WPIN PINC
#define _1WL _BV(PC6)

unsigned char _1WireInit(void);
void _1WireWriteSlot(unsigned char bit, unsigned char pr);
unsigned char _1WireReadSlot(void);
void _1WireWriteByte(unsigned char dana);
void _1WireWriteBytePR(unsigned char dana);
unsigned char _1WireReadByte(void);
void _1WirePoweroff(void);
void _1WireSendRom(unsigned char *rom);
unsigned char _1WireSearch(unsigned char rv, unsigned char *buf);

#define _1WLOW() _1WDDR |= _1WL;
#define _1WHIGH() _1WDDR &= ~_1WL;
#define _1WISHIGH() (_1WPIN & _1WL)

#define _1WirePoweroff() { _1WDDR &= ~_1WL; _1WPORT &= ~_1WL; }

#endif