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 27 struct 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 35 int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata); 36 int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data); 37 int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len); 38 struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which); 39 40 extern int viafb_i2c_init(void); 41 extern void viafb_i2c_exit(void); 42 #endif /* __VIA_I2C_H__ */ 43