hi_i2c.h

华为 HI3510 BOOTLOADER HIBOOT 源码包

#ifndef __HI_INC_I2C_H__
#define __HI_INC_I2C_H__

#define I2C_BASE 	0x101F6000
#define I2C_RATE 	30000
#define I2C_CLK  	(AHB_CLOCK)

/* IIC registers */
#define IIC_CON			(I2C_BASE+0x00) /*IIC control reg*/
#define IIC_TAR			(I2C_BASE+0x04) /*slave chip address reg*/
#define IIC_HCNT    		(I2C_BASE+0x14)
#define IIC_LCNT    		(I2C_BASE+0x18)
#define IIC_HS_HCNT    		(I2C_BASE+0x1C)
#define IIC_HS_LCNT    		(I2C_BASE+0x20)
#define	IIC_INTR_MASK		(I2C_BASE+0x30) /*interrupt mask reg*/
#define	IIC_INTR_STAT		(I2C_BASE+0x2C) /*interrupt status reg*/
#define	IIC_ENABLE		(I2C_BASE+0x6C) /*IP enable*/
#define	IIC_DATA_CMD		(I2C_BASE+0x10) /*IIC TX FIFO*/
#define IIC_TXFIFO_FLAG		(I2C_BASE+0x74) /*indicate TXFIFO level*/
#define IIC_RXFIFO_FLAG		(I2C_BASE+0x78) /*indicate RXFIFO level*/
#define IIC_STATUS		(I2C_BASE+0x70) /*IP status flag reg*/
#define IIC_RAW_INTSTATUS 	(I2C_BASE+0x34)
#define IIC_CLR_INTR		(I2C_BASE+0x40) /*clear combined and individual interrupt*/
#define IIC_CLR_TX_ABRT		(I2C_BASE+0x54) /*clear RT abrt interrupt reg*/
#define IIC_CLR_STOPDET 	(I2C_BASE+0x60) /*clear stop_det interrupt reg*/
#define IIC_CLR_TX_OVER 	(I2C_BASE+0x4C) /*clear tx fifo over interrupt reg*/
#define IIC_CLR_RX_ABRT		(I2C_BASE+0x80) /*clear RX abrt interrupt reg*/

#define TIMECOUNT   	0x10000
#define CONTROL_VALUE	0x0023

/* Register read macro definition */
#ifndef IIC_REG_READ
#define IIC_REG_READ(reg,result) \
        ((result) = *(volatile unsigned int*)(reg))
#endif 

/* Register write macro definition */
#ifndef IIC_REG_WRITE
#define IIC_REG_WRITE(reg,data) \
        (*((volatile unsigned int*)(reg)) = (data))
#endif

struct i2c_client 
{
  char		name[32];
  int		id;
  unsigned int	flags;		
  unsigned int 	addr;	         
  void 		*data;		
};


void I2C_Init (void);
unsigned char I2C_Read(struct i2c_client *pstClient, unsigned char u8Address);
int I2C_Write(struct i2c_client *client, unsigned char u8Address, unsigned char u8Data);
unsigned char I2C_SerialRead(unsigned char u8DevAddress, unsigned char  u8Address);
int I2C_SerialWrite(int devAddress, int address, int data);

#endif