onewire_driver.h

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#if !defined(DRIVER_ONEWIRE_DRIVER_H_)
#define DRIVER_ONEWIRE_DRIVER_H_
 
#include <chip.h>
#include <stdbool.h>
#include <stdint.h>
 
#define ONEWIRE_ROM_CODE_SIZE 8U
 
typedef struct {
    uint8_t scu_port;
    uint8_t scu_pin;
    uint16_t scu_mode;
    uint8_t scu_func;
    uint8_t gpio_port;
    uint8_t gpio_pin;
} onewire_pin_config_t;
 
typedef struct {
    onewire_pin_config_t pin;
    bool initialized;
} onewire_driver_t;
 
bool onewire_init(onewire_driver_t* driver, const onewire_pin_config_t* pin_config);
 
bool onewire_reset(const onewire_driver_t* driver);
 
void onewire_write_bit(const onewire_driver_t* driver, bool bit_value);
 
bool onewire_read_bit(const onewire_driver_t* driver);
 
void onewire_write_byte(const onewire_driver_t* driver, uint8_t value);
 
uint8_t onewire_read_byte(const onewire_driver_t* driver);
 
void onewire_skip_rom(const onewire_driver_t* driver);
 
void onewire_match_rom(const onewire_driver_t* driver, const uint8_t rom_code[ONEWIRE_ROM_CODE_SIZE]);
 
uint8_t onewire_search_roms(const onewire_driver_t* driver,
                            uint8_t rom_codes[][ONEWIRE_ROM_CODE_SIZE],
                            uint8_t max_devices);
 
#endif // DRIVER_ONEWIRE_DRIVER_H_