#ifndef _I2C_H_
#define _I2C_H_

#include "define_all.h" 



#define LCD_RTC_I2C_SCL_GPIO_PORT 	GPIOA
#define LCD_RTC_I2C_SCL_PIN					GPIO_Pin_14

#define LCD_RTC_I2C_SDA_GPIO_PORT 	GPIOA
#define LCD_RTC_I2C_SDA_PIN					GPIO_Pin_15


//I2C												
#define I2C_SCL_H				GPIO_SetBits(LCD_RTC_I2C_SCL_GPIO_PORT,LCD_RTC_I2C_SCL_PIN)
#define I2C_SCL_L				GPIO_ResetBits(LCD_RTC_I2C_SCL_GPIO_PORT,LCD_RTC_I2C_SCL_PIN)

#define I2C_SDA_H				GPIO_SetBits(LCD_RTC_I2C_SDA_GPIO_PORT,LCD_RTC_I2C_SDA_PIN)
#define I2C_SDA_L				GPIO_ResetBits(LCD_RTC_I2C_SDA_GPIO_PORT,LCD_RTC_I2C_SDA_PIN)

#define I2C_SCL_READ		GPIO_ReadInputDataBit(LCD_RTC_I2C_SDA_GPIO_PORT,LCD_RTC_I2C_SCL_PIN)
#define I2C_SDA_READ		GPIO_ReadInputDataBit(LCD_RTC_I2C_SDA_GPIO_PORT,LCD_RTC_I2C_SDA_PIN)		


#if SOFT_OR_HARD
void I2c_Start(void);
void I2c_Stop(void);
void I2c_Send(uint8_t dat);
uint8_t I2c_Read(void);
char I2c_Wait_Ack(void);
void I2c_Ack(void);
void I2c_No_Ack(void);

void Sda_Out(void);//SDA ÉèÖÃΪÊä³ö    
void Sda_In(void);//SDA ÉèÖÃΪÊäÈë 
void I2c_Scl_Gpio_Init(void);
#else

#define	I2CREAD		1	//I2C¶Á²Ù×÷
#define	I2CWRITE	0	//I2Cд²Ù×÷

#define	STARTBIT	0	
#define	RESTARTBIT	1
#define	STOPBIT		2

void I2C_Init(I2C_Type* I2Cx);
uint08 I2C_Send_Bit( I2C_Type* I2Cx,uint08 BIT_def );
uint08 I2C_Send_Byte(I2C_Type* I2Cx,uint08 x_byte );
uint08 I2C_Receive_Byte( I2C_Type* I2Cx,uint08 *x_byte );
#endif

#endif