#ifndef __onewire_h_

#define __onewire_h_

#include <stdint.h>

#include <stdbool.h>

typedef uint8_t onewire_id[8];

typedef struct {

    int16_t temperature;

    uint8_t threshold_h;

    uint8_t threshold_l;

    uint8_t config;

    uint8_t resv0;

    uint8_t resv1;

    uint8_t resv2;

    uint8_t crc;

} ds18b20_scratchpad_t;

void onewire_tx_byte(uint8_t data);

uint8_t onewire_rx_byte(void);

void onewire_readrom(onewire_id id);

void onewire_matchrom(onewire_id id);

void onewire_skiprom(void);

void onewire_searchrom(onewire_id *id_list, uint8_t *n);

uint8_t onewire_crc8(uint8_t *data, uint8_t length);

bool onewire_crc_rom(onewire_id id);

void onewire_convert_t(void);

void onewire_write_scratchpad(uint8_t th, uint8_t tl, uint8_t config);

bool onewire_read_scratchpad(ds18b20_scratchpad_t *scratchpad);

#define ONEWIRE_CMD_READROM 0x33

#define ONEWIRE_CMD_SKIPROM 0xCC

#define ONEWIRE_CMD_MATCHROM 0x55

#define ONEWIRE_CMD_SEARCHROM 0xF0

#define ONEWIRE_CMD_CONVERT_T 0x44

#define ONEWIRE_CMD_WRITE_SCRATCHPAD 0x4E

#define ONEWIRE_CMD_READ_SCRATCHPAD 0xBE

#define ONEWIRE_CMD_COPY_SCRATCHPAD 0x48

#define ONEWIRE_CMD_RECALL_EE 0xB8

#define ONEWIRE_CMD_READ_POWER 0xB4

#endif // __onewire_h_