i2c.h

Embeded bootloader (rrload by ridgerun) for TI linux based platform v5.36

/*****************************************************************************
*
*             Copyright (C) 2001 by Ingenient Technologies, Inc.
*                            All Rights Reserved.
*
*             Use of this software is restricted to the terms and
*            conditions of Ingenient's software license agreement.
*
*                             www.ingenient.com
*
******************************************************************************
*
*  Filename:
*
*     i2c.h
*
*  File Description:
*
*     Function prototypes, etc. for functions in i2c.c
*
*
*****************************************************************************/

#ifndef I2C_H
#define I2C_H

/* ***************************   Definitions   **************************** */
#define REG *(unsigned short *)
#define UINT8	unsigned char
#define UINT16	unsigned short
#define UINT32	unsigned long
#define INT16	short

#define GIO_REGISTER_BASE    0x00030580   // GIO register address

#define DIR0     (volatile UINT16 *)(GIO_REGISTER_BASE)
#define BITSET0  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x000C)
#define BITCLR0  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x0012)

#define DIR1     (volatile UINT16 *)(GIO_REGISTER_BASE + 2)
#define BITSET1  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x000E)
#define BITCLR1  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x0014)

#define DIR2     (volatile UINT16 *)(GIO_REGISTER_BASE + 4)
#define BITSET2  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x0010)
#define BITCLR2  (volatile UINT16 *)(GIO_REGISTER_BASE + 0x0016)


#define BOOL	unsigned char
typedef enum {I2C_SUCCESS, I2C_ERROR} I2C_RETURN;

/* ****************************   Structures   **************************** */


/* *************************   Global Variables   ************************* */


/* ***********************   Function Prototypes   ************************ */
void  I2C_init(INT16 scl_gio, INT16 sda_gio);
void  I2C_writeReg(UINT8 slaveAddr, UINT8 subAddr, UINT8 val,
                   UINT8 *successFlag);
void  I2C_writeRegs(UINT8 slaveAddr, UINT8 subAddr, UINT8 *val,
                    UINT32 count, UINT8 *successFlag);
unsigned char I2C_readReg(UINT8 slaveAddr, UINT8 subAddr,
                  UINT8 *successFlag);
void I2C_readRegs(UINT8 slaveAddr, UINT8 subAddr, UINT8 *val,
                  UINT32 count, UINT8 *successFlag);

#endif /* I2C_H */