luat_i2c.h

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#ifndef LUAT_I2C_H
#define LUAT_I2C_H
 
#include "luat_base.h"
int luat_i2c_exist(int id);
 
int luat_i2c_setup(int id, int speed);
 
int luat_i2c_close(int id);
int luat_i2c_send(int id, int addr, void* buff, size_t len, uint8_t stop);
 
int luat_i2c_recv(int id, int addr, void* buff, size_t len);
 
int luat_i2c_write_reg(int id, int addr, int reg, void* buff, size_t len, uint8_t stop);
int luat_i2c_read_reg(int id, int addr, int reg, void* buff, size_t len);
int luat_i2c_transfer(int id, int addr, uint8_t *reg, size_t reg_len, uint8_t *buff, size_t len);
 
int luat_i2c_no_block_transfer(int id, int addr, uint8_t is_read, uint8_t *reg, size_t reg_len, uint8_t *buff, size_t len, uint16_t Toms, void *CB, void *pParam);
 
int luat_i2c_set_iomux(int id, uint8_t value);
 
int luat_i2c_set_polling_mode(int id, uint8_t on_off);
#define LUAT_EI2C_TYPE "EI2C*"
 
typedef struct luat_ei2c {
    int8_t sda;
    int8_t scl;
    int16_t udelay;
} luat_ei2c_t;//软件i2c
 
void i2c_soft_start(luat_ei2c_t *ei2c);
char i2c_soft_recv(luat_ei2c_t *ei2c, unsigned char addr, char *buff, size_t len);
char i2c_soft_send(luat_ei2c_t *ei2c, unsigned char addr, char *data, size_t len, uint8_t stop);
 
 
#define toei2c(L) ((luat_ei2c_t *)luaL_checkudata(L, 1, LUAT_EI2C_TYPE))
 
#endif