i2c_func.h

sigmatel 软件模拟i2c驱动,此源码是配合touch pad使用案例.enjoy

#ifndef I2C_FUNC_H
#define I2C_FUNC_H



#define UART_KEY_MENU    0x01
#define UART_KEY_PLAY    0x02
#define UART_KEY_FF      0x03
#define UART_KEY_RW      0x04
#define UART_KEY_ENTER   0x05
#define UART_KEY_VOLUP   0x06
#define UART_KEY_VOLDN   0x07
#define UART_KEY_PWR     0x08
#define UART_KEY_PAUSE     0x09

#define UART_KEY_CLICK   0x01
#define UART_KEY_DOWN    0x02
#define UART_KEY_HOLD    0x03
#define UART_KEY_UP      0x04

//void UARTKey_MsgDeal(unsigned int MsgNum, uint32_t MsgWord);

#define I2C_ADDR_READ	0x41	

#define I2C_ADDR_WRITE	0x40	//0x20	

#define I2C_UPDATA_ADDR_READ		0xc3	//0x61
#define I2C_UPDATA_ADDR_WRITE		0xc2	//I2C_ADDR_WRITE	///0x60
#define CLOCK_100_KHZ	0
#define CLOCK_400_KHZ	1

#define CLOCK_TIMING_CHIOCE	CLOCK_100_KHZ

#define I2C_NEW_FUNCTION_TEST

void InitTouchKeyIO(void);
void ShutdownTouchKeyIO(void);
BOOL I2c_sendaddr(uint8_t addr);
uint32_t I2c_data_transfers(uint8_t * pData,uint32_t size,BOOL read);

RtStatus_t ddi_i2c_bitbang_write(uint32_t eFrequency,
				 uint8_t u8SlaveAddress,
				 const void* pData,
				 uint16_t u16Size,
				 bool bStop,
				 void* private_data);
RtStatus_t ddi_i2c_bitbang_read(uint32_t eFrequency,
				uint8_t u8SlaveAddress,
				void* pData,
				uint16_t u16Size,
				void* private_data);

void power_down_SetHi_Int(void);
void power_down_SetLo_Int(void);
void power_down_reinit_Int(void);
#endif