i2c.h

realtek LCD monitor, TV开发源代码

//**********************************************************************************************************
//  The  Software  is  proprietary,  confidential,  and  valuable to Realtek Semiconductor
//  Corporation  ("Realtek").  All  rights, including but not limited  to  copyrights,
//  patents,  trademarks, trade secrets, mask work rights, and other similar rights and interests,
//  are reserved to Realtek. Without  prior  written  consent  from  Realtek,  copying, reproduction,
//  modification,  distribution,  or  otherwise  is strictly prohibited. The Software  shall  be
//  kept  strictly  in  confidence,  and  shall  not be  disclosed to or otherwise accessed by
//  any third party. @ <2003> - <2008>   The Software is provided "AS IS" without any warranty of any kind,
//  express, implied, statutory or otherwise.
//**********************************************************************************************************
//----------------------------------------------------------------------------------------------------
// ID Code      : I2c.h No.0000
// Update Note  :
//----------------------------------------------------------------------------------------------------

//--------------------------------------------------
// Definitions of I2c.c
//--------------------------------------------------
#define _I2C_WRITE_SIZE                 16
#define _I2C_TIMEOUT_LIMIT              255

#define _I2C_BUSY                       0
#define _I2C_OK                         1

#define _I2C_WR                         0
#define _I2C_RD                         1


//----------------------------------------------------------------------------------------------------

#ifdef __I2C__

//--------------------------------------------------
// Global Variables
//--------------------------------------------------
#if(_TOUCH_SENSOR == _ON)
bit bTouchKeyFlag = 0;
#endif
//--------------------------------------------------
// Function Prototypes
//--------------------------------------------------
void Delay5us(void);
BYTE CI2cStart(BYTE ucDeviceAddr);
void CI2cStop(void);
BYTE CI2cGetAck(void);
void CI2cSendAck(void);
BYTE CI2cSendByte(BYTE ucValue);
BYTE CI2cGetByte(void);
bit CI2cRead(BYTE ucDeviceAddr, BYTE ucStartAddr, WORD usLength, BYTE *pReadArray);
bit CI2cWrite(BYTE ucDeviceAddr, BYTE ucStartAddr, WORD usLength, BYTE *pWriteArray);


#else

//--------------------------------------------------
// Extern Global Variables
//--------------------------------------------------
#if(_TOUCH_SENSOR == _ON)
extern bit bTouchKeyFlag;
#endif


//--------------------------------------------------
// Extern Function Prototypes
//--------------------------------------------------
extern void CI2cSendNoAck(void);
extern void Delay5us(void);
extern BYTE CI2cStart(BYTE ucDeviceAddr);
extern void CI2cStop(void);
extern BYTE CI2cGetAck(void);
extern void CI2cSendAck(void);
extern BYTE CI2cSendByte(BYTE ucValue);
extern BYTE CI2cGetByte(void);
extern bit CI2cRead(BYTE ucDeviceAddr, BYTE ucStartAddr, WORD usLength, BYTE *pReadArray);
extern bit CI2cWrite(BYTE ucDeviceAddr, BYTE ucStartAddr, WORD usLength, BYTE *pWriteArray);


#endif


//----------------------------------------------------------------------------------------------------

//--------------------------------------------------
// Macro of I2c.c
//--------------------------------------------------
#define SETI2CSDA()                 (bI2CSDA = _TRUE)
#define CLRI2CSDA()                 (bI2CSDA = _FALSE)
#define CHECKI2CSDA()               (bI2CSDA)

#define SETI2CSCL()                 (bI2CSCL = _TRUE)
#define CLRI2CSCL()                 (bI2CSCL = _FALSE)
#define CHECKI2CSCL()               (bI2CSCL)

//--------------------------------------------------
// Macro of Touch Key I2C Bus
//--------------------------------------------------
#if(_TOUCH_SENSOR == _ON)
#define SETI2CSDA_TOUCH_KEY()       (bTOUCHSDA= _TRUE)
#define CLRI2CSDA_TOUCH_KEY()       (bTOUCHSDA= _FALSE)
#define CHECKI2CSDA_TOUCH_KEY()     (bTOUCHSDA)

#define CLRI2CSCL_TOUCH_KEY()       (bTOUCHSCL= _FALSE)
#define CHECKI2CSCL_TOUCH_KEY()     (bTOUCHSCL)

#define GET_I2C_TOUCH_KEY()         ((bit)(bTouchKeyFlag & _BIT0))
#define SET_I2C_TOUCH_KEY()         (bTouchKeyFlag |= _BIT0)
#define CLR_I2C_TOUCH_KEY()         (bTouchKeyFlag &=0x00)
#endif