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return proper errors

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This commit is contained in:
me-no-dev
2016-10-11 15:11:51 +03:00
parent 9ec4389889
commit f9f895797a
2 changed files with 48 additions and 31 deletions
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26
cores/esp32/esp32-hal-i2c.h
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@ -19,24 +19,32 @@
extern "C" {
#endif
#include "esp32-hal.h"
#include "soc/i2c_struct.h"
#include <stdint.h>
#include <stdbool.h>
typedef enum {
I2C_ERROR_OK,
I2C_ERROR_DEV,
I2C_ERROR_ACK,
I2C_ERROR_TIMEOUT,
I2C_ERROR_BUS
} i2c_err_t;
struct i2c_struct_t;
typedef struct i2c_struct_t i2c_t;
i2c_t * i2cInit(uint8_t i2c_num, uint16_t slave_addr, bool addr_10bit_en);
void i2cSetFrequency(i2c_t * i2c, uint32_t clk_speed);
i2c_err_t i2cSetFrequency(i2c_t * i2c, uint32_t clk_speed);
uint32_t i2cGetFrequency(i2c_t * i2c);
void i2cAttachSCL(i2c_t * i2c, int8_t scl);
void i2cDetachSCL(i2c_t * i2c, int8_t scl);
void i2cAttachSDA(i2c_t * i2c, int8_t sda);
void i2cDetachSDA(i2c_t * i2c, int8_t sda);
i2c_err_t i2cAttachSCL(i2c_t * i2c, int8_t scl);
i2c_err_t i2cDetachSCL(i2c_t * i2c, int8_t scl);
i2c_err_t i2cAttachSDA(i2c_t * i2c, int8_t sda);
i2c_err_t i2cDetachSDA(i2c_t * i2c, int8_t sda);
int i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
int i2cRead(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
i2c_err_t i2cWrite(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
i2c_err_t i2cRead(i2c_t * i2c, uint16_t address, bool addr_10bit, uint8_t * data, uint8_t len, bool sendStop);
#ifdef __cplusplus