Subversion Repositories or1k

/* ------------------------------------------------------------------------- */
/* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters                 */
/* ------------------------------------------------------------------------- */
/*   Copyright (C) 1995-97 Simon G. Vogl
                   1998-99 Hans Berglund
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
/* ------------------------------------------------------------------------- */
 
/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
   Frodo Looijaard <frodol@dds.nl> */
 
/* Modifications by MontaVista Software, 2001
   Changes made to support the ITE IIC peripheral */
 
 
#ifndef I2C_ALGO_ITE_H
#define I2C_ALGO_ITE_H 1
 
#include <linux/i2c.h>
 
/* Example of a sequential read request:
	struct i2c_iic_msg s_msg; 
 
	s_msg.addr=device_address;
	s_msg.len=length;
	s_msg.buf=buffer;
	s_msg.waddr=word_address;
	ioctl(file,I2C_SREAD, &s_msg);
 */
#define I2C_SREAD	0x780	/* SREAD ioctl command */
 
struct i2c_iic_msg {
	__u16 addr;	/* device address */
	__u16 waddr;	/* word address */
	short len;	/* msg length */
	char *buf;	/* pointer to msg data */
};
 
struct i2c_algo_iic_data {
	void *data;		/* private data for lolevel routines	*/
	void (*setiic) (void *data, int ctl, int val);
	int  (*getiic) (void *data, int ctl);
	int  (*getown) (void *data);
	int  (*getclock) (void *data);
	void (*waitforpin) (void);     
 
	/* local settings */
	int udelay;
	int mdelay;
	int timeout;
};
 
int i2c_iic_add_bus(struct i2c_adapter *);
int i2c_iic_del_bus(struct i2c_adapter *);
 
#endif /* I2C_ALGO_ITE_H */