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