drv_i2c.c File Reference

#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "stm32f10x_conf.h"
#include "drv_system.h"
#include "drv_gpio.h"
#include "drv_i2c.h"

Include dependency graph for drv_i2c.c:

Go to the source code of this file.

Classes
struct	i2cDevice_t

Macros
#define	I2C_DEFAULT_TIMEOUT   30000
#define	I2C_DEVICE   (I2CDEV_2)

Typedefs
typedef struct i2cDevice_t	i2cDevice_t

Functions
void	I2C1_ER_IRQHandler (void)
void	I2C1_EV_IRQHandler (void)
void	I2C2_ER_IRQHandler (void)
void	I2C2_EV_IRQHandler (void)
static void	i2c_er_handler (void)
static void	i2c_ev_handler (void)
static void	i2c_init_buffer (void)
static void	i2c_job_handler (void)
void	i2c_queue_job (i2cJobType_t type, uint8_t addr_, uint8_t reg_, uint8_t *data, uint8_t length, volatile uint8_t *status_, void(*CB)(uint8_t))
uint16_t	i2cGetErrorCounter (void)
static bool	i2cHandleHardwareFailure (void)
void	i2cInit (I2CDevice index)
bool	i2cRead (uint8_t addr_, uint8_t reg_, uint8_t len, uint8_t *buf)
bool	i2cReadAsync (uint8_t addr_, uint8_t reg_, uint8_t len, uint8_t *buf, volatile uint8_t *status_, void(*CB)(uint8_t))
static void	i2cUnstick (void)
bool	i2cWrite (uint8_t addr_, uint8_t reg_, uint8_t data)
bool	i2cWriteAsync (uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *buf_, volatile uint8_t *status_, void(*CB)(uint8_t))
bool	i2cWriteBuffer (uint8_t addr_, uint8_t reg_, uint8_t len_, uint8_t *data)

Variables
static volatile uint8_t	addr
static volatile bool	busy
static volatile uint8_t	bytes
static void(*	complete_CB )(uint8_t)
static volatile bool	error = false
static i2cJob_t	i2c_buffer [I2C_BUFFER_SIZE+10]
static volatile uint8_t	i2c_buffer_count
static volatile uint8_t	i2c_buffer_head
static bool	i2c_buffer_lock = false
static volatile uint8_t	i2c_buffer_tail
static volatile uint16_t	i2cErrorCount = 0
static const i2cDevice_t	i2cHardwareMap []
static I2C_TypeDef *	I2Cx = NULL
static I2CDevice	I2Cx_index
static volatile uint8_t *	read_p
static volatile uint8_t	reading
static volatile uint8_t	reg
static volatile uint8_t *	status
static volatile uint8_t *	write_p
static volatile uint8_t	writing

Macro Definition Documentation

#define I2C_DEFAULT_TIMEOUT   30000

Definition at line 89 of file drv_i2c.c.

#define I2C_DEVICE   (I2CDEV_2)

Definition at line 22 of file drv_i2c.c.

Typedef Documentation

typedef struct i2cDevice_t i2cDevice_t

Function Documentation

void I2C1_ER_IRQHandler

(

void

)

Definition at line 69 of file drv_i2c.c.

void I2C1_EV_IRQHandler

(

void

)

Definition at line 74 of file drv_i2c.c.

void I2C2_ER_IRQHandler

(

void

)

Definition at line 79 of file drv_i2c.c.

void I2C2_EV_IRQHandler

(

void

)

Definition at line 84 of file drv_i2c.c.

static void i2c_er_handler ( void  )

static

Definition at line 262 of file drv_i2c.c.

void i2c_ev_handler ( void  )

static

Definition at line 304 of file drv_i2c.c.

void i2c_init_buffer ( void  )

static

Definition at line 620 of file drv_i2c.c.

void i2c_job_handler ( void  )

static

Definition at line 528 of file drv_i2c.c.

void i2c_queue_job	(	i2cJobType_t	type,
		uint8_t	addr_,
		uint8_t	reg_,
		uint8_t *	data,
		uint8_t	length,
		volatile uint8_t *	status_,
		void(*)(uint8_t)	CB
	)

Definition at line 579 of file drv_i2c.c.

uint16_t i2cGetErrorCounter

(

void

)

Definition at line 467 of file drv_i2c.c.

static bool i2cHandleHardwareFailure ( void  )

static

Definition at line 105 of file drv_i2c.c.

void i2cInit

(

I2CDevice

index

)

Definition at line 420 of file drv_i2c.c.

bool i2cRead	(	uint8_t	addr_,
		uint8_t	reg_,
		uint8_t	len,
		uint8_t *	buf
	)

Definition at line 157 of file drv_i2c.c.

bool i2cReadAsync	(	uint8_t	addr_,
		uint8_t	reg_,
		uint8_t	len,
		uint8_t *	buf,
		volatile uint8_t *	status_,
		void(*)(uint8_t)	CB
	)

Definition at line 196 of file drv_i2c.c.

static void i2cUnstick ( void  )

static

Definition at line 472 of file drv_i2c.c.

bool i2cWrite	(	uint8_t	addr_,
		uint8_t	reg_,
		uint8_t	data
	)

Definition at line 152 of file drv_i2c.c.

bool i2cWriteAsync	(	uint8_t	addr_,
		uint8_t	reg_,
		uint8_t	len_,
		uint8_t *	buf_,
		volatile uint8_t *	status_,
		void(*)(uint8_t)	CB
	)

Definition at line 229 of file drv_i2c.c.

bool i2cWriteBuffer	(	uint8_t	addr_,
		uint8_t	reg_,
		uint8_t	len_,
		uint8_t *	data
	)

Definition at line 113 of file drv_i2c.c.

Variable Documentation

volatile uint8_t addr

static

Definition at line 95 of file drv_i2c.c.

volatile bool busy

static

Definition at line 93 of file drv_i2c.c.

volatile uint8_t bytes

static

Definition at line 97 of file drv_i2c.c.

void(* complete_CB) (uint8_t)

static

Definition at line 103 of file drv_i2c.c.

volatile bool error = false

static

Definition at line 92 of file drv_i2c.c.

i2cJob_t i2c_buffer[I2C_BUFFER_SIZE+10]

static

Definition at line 41 of file drv_i2c.c.

volatile uint8_t i2c_buffer_count

static

Definition at line 44 of file drv_i2c.c.

volatile uint8_t i2c_buffer_head

static

Definition at line 42 of file drv_i2c.c.

bool i2c_buffer_lock = false

static

Definition at line 40 of file drv_i2c.c.

volatile uint8_t i2c_buffer_tail

static

Definition at line 43 of file drv_i2c.c.

volatile uint16_t i2cErrorCount = 0

static

Definition at line 90 of file drv_i2c.c.

const i2cDevice_t i2cHardwareMap[]

static

Initial value:

= {
  { I2C1, GPIOB, Pin_6, Pin_7, I2C1_EV_IRQn, I2C1_ER_IRQn, RCC_APB1Periph_I2C1 },
  { I2C2, GPIOB, Pin_10, Pin_11, I2C2_EV_IRQn, I2C2_ER_IRQn, RCC_APB1Periph_I2C2 },
}

Definition at line 58 of file drv_i2c.c.

I2C_TypeDef* I2Cx = NULL

static

Definition at line 64 of file drv_i2c.c.

I2CDevice I2Cx_index

static

Definition at line 66 of file drv_i2c.c.

volatile uint8_t* read_p

static

Definition at line 101 of file drv_i2c.c.

volatile uint8_t reading

static

Definition at line 99 of file drv_i2c.c.

volatile uint8_t reg

static

Definition at line 96 of file drv_i2c.c.

volatile uint8_t* status

static

Definition at line 102 of file drv_i2c.c.

volatile uint8_t* write_p

static

Definition at line 100 of file drv_i2c.c.

volatile uint8_t writing

static

Definition at line 98 of file drv_i2c.c.