i2c_device.c File Reference

#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "driver/i2c.h"
#include "esp_log.h"
#include "esp_err.h"
#include "i2c_device.h"

Macros
#define	TAG   "I2C-DEVICE"
#define	log_i(format...)
#define	log_e(format...)
#define	log_reg(buffer, buffer_len)
#define	I2C_TIMEOUT_MS   (100)

Functions
I2CDevice_t	i2c_malloc_device (i2c_port_t i2c_num, gpio_num_t sda, gpio_num_t scl, uint32_t freq, uint8_t device_addr)
void	i2c_free_device (I2CDevice_t i2c_device)
BaseType_t	i2c_take_port (i2c_port_t i2c_num, uint32_t timeout)
BaseType_t	i2c_free_port (i2c_port_t i2c_num)
esp_err_t	i2c_apply_bus (I2CDevice_t i2c_device)
esp_err_t	i2c_free_bus (I2CDevice_t i2c_device)
esp_err_t	i2c_read_bytes (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data, uint16_t length)
esp_err_t	i2c_read_bytes_no_stop (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data, uint16_t length)
esp_err_t	i2c_read_byte (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data)
esp_err_t	i2c_read_bit (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data, uint8_t bit_pos)
esp_err_t	i2c_read_bits (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data, uint8_t bit_pos, uint8_t bit_length)
esp_err_t	i2c_write_bytes (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t *data, uint16_t length)
esp_err_t	i2c_write_byte (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t data)
esp_err_t	i2c_write_bit (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t data, uint8_t bit_pos)
esp_err_t	i2c_write_bits (I2CDevice_t i2c_device, uint32_t reg_addr, uint8_t data, uint8_t bit_pos, uint8_t bit_length)
esp_err_t	i2c_device_change_freq (I2CDevice_t i2c_device, uint32_t freq)
esp_err_t	i2c_device_valid (I2CDevice_t i2c_device)

Macro Definition Documentation

TAG

#define TAG   "I2C-DEVICE"

log_i

#define log_i

(

format...

)

log_e

#define log_e

(

format...

)

log_reg

#define log_reg	(		buffer,
			buffer_len
	)

I2C_TIMEOUT_MS

#define I2C_TIMEOUT_MS   (100)

Function Documentation

i2c_malloc_device()

I2CDevice_t i2c_malloc_device	(	i2c_port_t	i2c_num,
		gpio_num_t	sda,
		gpio_num_t	scl,
		uint32_t	freq,
		uint8_t	device_addr
	)

i2c_free_device()

void i2c_free_device

(

I2CDevice_t

i2c_device

)

i2c_take_port()

BaseType_t i2c_take_port	(	i2c_port_t	i2c_num,
		uint32_t	timeout
	)

i2c_free_port()

BaseType_t i2c_free_port

(

i2c_port_t

i2c_num

)

i2c_apply_bus()

esp_err_t i2c_apply_bus

(

I2CDevice_t

i2c_device

)

i2c_free_bus()

esp_err_t i2c_free_bus

(

I2CDevice_t

i2c_device

)

i2c_read_bytes()

esp_err_t i2c_read_bytes	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data,
		uint16_t	length
	)

i2c_read_bytes_no_stop()

esp_err_t i2c_read_bytes_no_stop	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data,
		uint16_t	length
	)

i2c_read_byte()

esp_err_t i2c_read_byte	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data
	)

i2c_read_bit()

esp_err_t i2c_read_bit	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data,
		uint8_t	bit_pos
	)

i2c_read_bits()

esp_err_t i2c_read_bits	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data,
		uint8_t	bit_pos,
		uint8_t	bit_length
	)

i2c_write_bytes()

esp_err_t i2c_write_bytes	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t *	data,
		uint16_t	length
	)

i2c_write_byte()

esp_err_t i2c_write_byte	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t	data
	)

i2c_write_bit()

esp_err_t i2c_write_bit	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t	data,
		uint8_t	bit_pos
	)

i2c_write_bits()

esp_err_t i2c_write_bits	(	I2CDevice_t	i2c_device,
		uint32_t	reg_addr,
		uint8_t	data,
		uint8_t	bit_pos,
		uint8_t	bit_length
	)

i2c_device_change_freq()

esp_err_t i2c_device_change_freq	(	I2CDevice_t	i2c_device,
		uint32_t	freq
	)

i2c_device_valid()

esp_err_t i2c_device_valid

(

I2CDevice_t

i2c_device

)