target/linux/etrax/files-2.6.25/arch/cris/arch-v10/drivers/i2c_gvc.h

   1 /* $Id: i2c.h,v 1.3 2004/05/28 09:26:59 starvik Exp $ */
   2 #ifndef _I2C_H
   3 #define _I2C_H
   4
   5 int i2c_init(void);
   6
   7 /* High level I2C actions */
   8 int i2c_writereg(unsigned char theSlave, unsigned char theReg, unsigned char theValue);
   9 unsigned char i2c_readreg(unsigned char theSlave, unsigned char theReg);
  10
  11 /* Low level I2C */
  12 int i2c_start(void);
  13 int i2c_stop(void);
  14 int i2c_outbyte(unsigned char x);
  15 unsigned char i2c_inbyte(void);
  16 int i2c_getack(void);
  17 void i2c_sendack(void);
  18 void i2c_sendnack(void);
  19
  20 /**GVC**/
  21 /* New low level I2C functions */
  22 int i2c_read( unsigned char slave, unsigned char* rbuf, unsigned char rlen );
  23 int i2c_write( unsigned char slave, unsigned char* wbuf, unsigned char wlen );
  24 int i2c_writeread( unsigned char  slave
  25                  , unsigned char* wbuf
  26                  , unsigned char  wlen
  27                  , unsigned char* rbuf
  28                  , unsigned char  rlen
  29                  );
  30 /**END GVC**/
  31 #endif /* _I2C_H */