OneWireHub.h

#define DEBUG_hint

#if defined(ARDUINO) && ARDUINO >= 100
  #include "Arduino.h"
#else
  #include "WProgram.h"
#endif 

#include <inttypes.h> 

// You can exclude CRC checks altogether by defining this to 0
#ifndef ONEWIRESLAVE_CRC
  #define ONEWIRESLAVE_CRC 1
#endif 

#ifndef ONEWIRESLAVE_CRC8_TABLE
  #define ONEWIRESLAVE_CRC8_TABLE 0
#endif 

static const uint8_t ONEWIRESLAVE_COUNT = 8;
static const int ONEWIREIDMAP_COUNT = 256;

#define FALSE 0
#define TRUE  1

#define ONEWIRE_NO_ERROR 0
#define ONEWIRE_READ_TIMESLOT_TIMEOUT 1
#define ONEWIRE_WRITE_TIMESLOT_TIMEOUT 2
#define ONEWIRE_WAIT_RESET_TIMEOUT 3
#define ONEWIRE_VERY_LONG_RESET 4
#define ONEWIRE_VERY_SHORT_RESET 5
#define ONEWIRE_PRESENCE_LOW_ON_LINE 6
#define ONEWIRE_READ_TIMESLOT_TIMEOUT_LOW 7
#define ONEWIRE_READ_TIMESLOT_TIMEOUT_HIGH 8 

class OneWireItem;

class OneWireHub {    
  private:
    uint8_t pin_bitmask;
    volatile uint8_t *baseReg;
  
    byte bits[ONEWIREIDMAP_COUNT];
    byte idmap0[ONEWIREIDMAP_COUNT];
    byte idmap1[ONEWIREIDMAP_COUNT];
    
    OneWireItem * SelectElm;

    bool recvAndProcessCmd();
    uint8_t waitTimeSlot(); 
    uint8_t waitTimeSlotRead();
    
    int AnalizIds(byte Pos, byte BN, byte BM, byte mask);
  public:    
    OneWireHub(uint8_t pin);   
    
    OneWireItem * elms[ ONEWIRESLAVE_COUNT ];    
    
    int calck_mask();
    
    bool waitForRequest(bool ignore_errors); 
    bool waitReset(uint16_t timeout_ms);
    bool waitReset();
    bool presence(uint8_t delta);
    bool presence();
    bool search(); 
    
    uint8_t sendData(byte buf[], uint8_t data_len);
    uint8_t recvData(byte buf[], uint8_t data_len);
    void send(uint8_t v);
    uint8_t recv(void);
    void sendBit(uint8_t v);
    uint8_t recvBit(void); 
    
    uint8_t errno;
};

class OneWireItem {
  public:
    OneWireItem(byte ID1, byte ID2, byte ID3, byte ID4, byte ID5, byte ID6, byte ID7);
    
    byte ID[8];    

    virtual bool duty( OneWireHub * hub );
    
#if ONEWIRESLAVE_CRC
    static uint8_t crc8(byte addr[], uint8_t len);
    static uint16_t crc16(byte addr[], uint8_t len);
#endif         
};

void ow_crc16_reset();
void ow_crc16_update(uint8_t b);
uint16_t ow_crc16_get();