19f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan/* 2277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved. 39f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. 49f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 59f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * This program is free software; you can redistribute it and/or 69f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * modify it under the terms of the GNU General Public 79f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * License as published by the Free Software Foundation; 89f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * either version 2, or (at your option) any later version. 99f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 109f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * This program is distributed in the hope that it will be useful, 119f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even 129f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * the implied warranty of MERCHANTABILITY or FITNESS FOR 139f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * A PARTICULAR PURPOSE.See the GNU General Public License 149f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * for more details. 159f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 169f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * You should have received a copy of the GNU General Public License 179f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * along with this program; if not, write to the Free Software 189f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * Foundation, Inc., 199f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 209f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan */ 219f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#ifndef __VIA_I2C_H__ 229f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#define __VIA_I2C_H__ 239f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 249f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#include <linux/i2c.h> 259f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#include <linux/i2c-algo-bit.h> 269f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 279f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chanstruct via_i2c_stuff { 289f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan u16 i2c_port; /* GPIO or I2C port */ 29b052d7f81fdd352a5d89ef1ac37a2c77f219463bJonathan Corbet u16 is_active; /* Being used as I2C? */ 309f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan struct i2c_adapter adapter; 319f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan struct i2c_algo_bit_data algo; 329f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan}; 339f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 34277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 35277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata); 36277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data); 37277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len); 38b8f7e5d846387e3bcda35f3809856cf085740a24Jonathan Corbetstruct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which); 39277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 407582eb9be85f35271fd2569681a88a5b243e9380Jonathan Corbetextern int viafb_i2c_init(void); 417582eb9be85f35271fd2569681a88a5b243e9380Jonathan Corbetextern void viafb_i2c_exit(void); 429f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#endif /* __VIA_I2C_H__ */ 43