one_wire.h

#ifndef __ONE_WIRE_H__
#define __ONE_WIRE_H__
#include <stdbool.h>
#include <string.h>
#include <stdio.h>

#include <stm32f10x.h>
#include <stm32f10x_gpio.h>
#include <stm32f10x_rcc.h>
#include <stm32f10x_tim.h>

#include "common_lib/usart.h"
#include "common_lib/utils.h"

typedef enum {
    ONE_WIRE_SLAVE_PRESENT,
    ONE_WIRE_ERROR
} one_wire_state;

typedef struct {
    uint8_t address[8];
} one_wire_device;

void one_wire_init(GPIO_TypeDef *gpio, uint16_t port, TIM_TypeDef *timer);
bool one_wire_reset_pulse(void);
void one_wire_write_1(void);
void one_wire_write_0(void);
void one_wire_write_bit(bool bit);
bool one_wire_read_bit(void);
void one_wire_write_byte(uint8_t data);
uint8_t one_wire_read_byte(void);
one_wire_device * one_wire_search_rom(uint8_t *devices);
bool one_wire_match_rom(one_wire_device device);
uint8_t one_wire_get_crc(void);
uint8_t one_wire_crc(uint8_t data);
void one_wire_reset_crc(void);
#endif // __ONE_WIRE_H__