File syn_port_i2c_async.h¶

File List > port > syn_port_i2c_async.h
#ifndef SYN_PORT_I2C_ASYNC_H
#define SYN_PORT_I2C_ASYNC_H

#if __has_include("syn_config.h")
#include "syn_config.h"
#endif

#if defined(SYN_USE_I2C_ASYNC) && SYN_USE_I2C_ASYNC

#include "../common/syn_defs.h"

#include <stddef.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

/* ── Callback ──────────────────────────────────────────────────────────── */

typedef void (*SYN_I2C_Callback)(uint8_t bus, SYN_Status result, void *ctx);

/* ── Transfer descriptor ───────────────────────────────────────────────── */

typedef struct {
    uint8_t bus;               
    uint8_t addr;              
    const uint8_t *tx_data;    
    size_t tx_len;             
    uint8_t *rx_data;          
    size_t rx_len;             
    SYN_I2C_Callback callback; 
    void *user_data;           
} SYN_I2C_Xfer;

/* ── Port functions (user implements) ──────────────────────────────────── */

SYN_Status syn_port_i2c_xfer_async(const SYN_I2C_Xfer *xfer);

SYN_Status syn_port_i2c_cancel(uint8_t bus);

#ifdef __cplusplus
}
#endif

#endif /* SYN_USE_I2C_ASYNC */

#endif /* SYN_PORT_I2C_ASYNC_H */