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#ifndef __GPIO_I2C_H_
#define __GPIO_I2C_H_
//I2C define
#define GPIO_I2C_SDA 0
#define GPIO_I2C_SCLK 1
/*schen add 2004-7-22 15:55 for smartcard module*/
#define GPIO_SC_IO1 2
#define GPIO_SC_IO2 3
#define GPIO_SC_CLK 4
#define GPIO_I2C_RD 0x01
#define GPIO_I2C_WR 0x02
/*schen add 2004-7-22 16:17 for smartcard module*/
#define GPIO_I2C_LOW 0
#define GPIO_I2C_HIGH 1
/*schen add 2004-7-22 15:55 for smartcard module*/
#define I2C_ACK 0
#define I2C_NAK 1
#define GPIO_I2C_DELAY 200 //400khz (fast-mode) / 800 //100khz
#define GPIO_I2C_MAX_BYTES 8192 //max bytes to be transfer one time
void GPIO_Enable_I2C_Channel(void); /* choose gpio0 and gpio1 */
int GPIO_I2C_Start(void); /* start I2C communication */
void GPIO_I2C_Stop(void); /* stop I2C communication */
int GPIO_I2C_Send_Byte(unsigned char c); /* write a byte to slave * device */
int GPIO_I2C_Read_Ack(void); /* read acknowledge from * slave device */
int GPIO_I2C_Read_Byte(void); /* read a byte from slave * device */
int GPIO_I2C_Read_Last_Byte(void); /* read last byte from * slave device */
int GPIO_I2C_Send_Ack(void); /* master send acknowledge * when reading */
int GPIO_I2C_Send_NoAck(void); /* master send no * acknowledge before stop */
int output_data(unsigned char dat);
unsigned char input_data(unsigned char ack);
#if 1
#define I2C_DEBUG(x)
#else
#define I2C_DEBUG(x) x
#endif
#endif
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