1/*
2 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation;
8 * either version 2, or (at your option) any later version.
9
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE.See the GNU General Public License
14 * for more details.
15
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21#ifndef __VIA_I2C_H__
22#define __VIA_I2C_H__
23
24#include <linux/i2c.h>
25#include <linux/i2c-algo-bit.h>
26
27struct via_i2c_stuff {
28 u16 i2c_port; /* GPIO or I2C port */
29 u16 is_active; /* Being used as I2C? */
30 struct i2c_adapter adapter;
31 struct i2c_algo_bit_data algo;
32};
33
34
35int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata);
36int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
37int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);
38struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which);
39
40extern int viafb_i2c_init(void);
41extern void viafb_i2c_exit(void);
42#endif /* __VIA_I2C_H__ */
43