1/* ------------------------------------------------------------------------- */
2/* adap-pcf.h i2c driver algorithms for PCF8584 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#ifndef _LINUX_I2C_ALGO_PCF_H
26#define _LINUX_I2C_ALGO_PCF_H
27
28struct i2c_algo_pcf_data {
29	void *data;		/* private data for lolevel routines	*/
30	void (*setpcf) (void *data, int ctl, int val);
31	int  (*getpcf) (void *data, int ctl);
32	int  (*getown) (void *data);
33	int  (*getclock) (void *data);
34	void (*waitforpin) (void);
35
36	/* local settings */
37	int udelay;
38	int timeout;
39};
40
41int i2c_pcf_add_bus(struct i2c_adapter *);
42
43#endif /* _LINUX_I2C_ALGO_PCF_H */
44