twr_ds2484.h

#ifndef _TWR_DS2484_H
#define _TWR_DS2484_H
 
#include <twr_i2c.h>
 
 
 
#define TWR_DS2484_STATUS_1WB   (1<<0) // 1-Wire Busy
#define TWR_DS2484_STATUS_PPD   (1<<1) // Presence Pulse Detect
#define TWR_DS2484_STATUS_SD    (1<<2) // Short Detected
#define TWR_DS2484_STATUS_LL    (1<<3) // Logic Level
#define TWR_DS2484_STATUS_RST   (1<<4) // Device Reset
#define TWR_DS2484_STATUS_SBR   (1<<5) // Single Bit Result
#define TWR_DS2484_STATUS_TSB   (1<<6) // Triplet Second Bit
#define TWR_DS2484_STATUS_DIR   (1<<7) // Branch Direction Taken
 
 
typedef struct twr_ds2484_t twr_ds2484_t;
 
 
struct twr_ds2484_t
{
    bool _ready;
    bool _spu_on;
    uint8_t _status;
    uint8_t _srp;
    twr_i2c_channel_t _i2c_channel;
    bool (*_set_slpz)(void *, bool);
    void *_set_slpz_ctx;
};
 
 
 
bool twr_ds2484_init(twr_ds2484_t *self, twr_i2c_channel_t i2c_channel);
 
void twr_ds2484_set_slpz_handler(twr_ds2484_t *self, bool (*handler)(void *, bool), void *handler_ctx);
 
 
void twr_ds2484_enable(twr_ds2484_t *self);
 
 
void twr_ds2484_disable(twr_ds2484_t *self);
 
 
bool twr_ds2484_reset(twr_ds2484_t *self);
 
 
bool twr_ds2484_busy_wait(twr_ds2484_t *self);
 
bool twr_ds2484_write_byte(twr_ds2484_t *self, const uint8_t byte);
 
bool twr_ds2484_read_byte(twr_ds2484_t *self, uint8_t *byte);
 
bool twr_ds2484_read_bit(twr_ds2484_t *self, uint8_t *bit);
 
bool twr_ds2484_triplet(twr_ds2484_t *self, const uint8_t direction);
 
bool twr_ds2484_is_ready(twr_ds2484_t *self);
 
uint8_t twr_ds2484_status_get(twr_ds2484_t *self);
 
bool twr_ds2484_is_present(twr_ds2484_t *self);
 
 
#endif // _TWR_TWR_DS2484_H