1/* ------------------------------------------------------------------------- */ 2/* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters */ 3/* ------------------------------------------------------------------------- */ 4/* Copyright (C) 1995-97 Simon G. Vogl 5 1998-99 Hans Berglund 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ 20/* ------------------------------------------------------------------------- */ 21 22/* With some changes from Ky�sti M�lkki <kmalkki@cc.hut.fi> and even 23 Frodo Looijaard <frodol@dds.nl> */ 24 25/* Modifications by MontaVista Software, 2001 26 Changes made to support the ITE IIC peripheral */ 27 28 29#ifndef I2C_ALGO_ITE_H 30#define I2C_ALGO_ITE_H 1 31 32#include <linux/i2c.h> 33 34/* Example of a sequential read request: 35 struct i2c_iic_msg s_msg; 36 37 s_msg.addr=device_address; 38 s_msg.len=length; 39 s_msg.buf=buffer; 40 s_msg.waddr=word_address; 41 ioctl(file,I2C_SREAD, &s_msg); 42 */ 43#define I2C_SREAD 0x780 /* SREAD ioctl command */ 44 45struct i2c_iic_msg { 46 __u16 addr; /* device address */ 47 __u16 waddr; /* word address */ 48 short len; /* msg length */ 49 char *buf; /* pointer to msg data */ 50}; 51 52struct i2c_algo_iic_data { 53 void *data; /* private data for lolevel routines */ 54 void (*setiic) (void *data, int ctl, int val); 55 int (*getiic) (void *data, int ctl); 56 int (*getown) (void *data); 57 int (*getclock) (void *data); 58 void (*waitforpin) (void); 59 60 /* local settings */ 61 int udelay; 62 int mdelay; 63 int timeout; 64}; 65 66int i2c_iic_add_bus(struct i2c_adapter *); 67int i2c_iic_del_bus(struct i2c_adapter *); 68 69#endif /* I2C_ALGO_ITE_H */ 70