via_i2c.h revision 277d32a36cba0b42c9c6836ff07f9b978566e95c
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 27277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteenum via_i2c_type { 28277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_NONE, 29277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_I2C, 30277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_GPIO, 31277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte}; 32277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 33277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte/* private data for each adapter */ 34277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Weltestruct via_i2c_adap_cfg { 35277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte enum via_i2c_type type; 36277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte u_int16_t io_port; 37277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte u_int8_t ioport_index; 38277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte}; 39277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 409f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chanstruct via_i2c_stuff { 419f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan u16 i2c_port; /* GPIO or I2C port */ 429f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan struct i2c_adapter adapter; 439f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan struct i2c_algo_bit_data algo; 449f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan}; 459f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan 46277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteenum viafb_i2c_adap { 47277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_ADAP_26, 48277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_ADAP_31, 49277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_ADAP_25, 50277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_ADAP_2C, 51277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte VIA_I2C_ADAP_3D, 52277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte}; 53277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 54277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata); 55277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data); 56277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len); 57277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welte 58277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Weltestruct viafb_par; 59277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Welteint viafb_create_i2c_busses(struct viafb_par *par); 60277d32a36cba0b42c9c6836ff07f9b978566e95cHarald Weltevoid viafb_delete_i2c_busses(struct viafb_par *par); 619f291634aa2d79dee2d8a61c5bdffe166001c580Joseph Chan#endif /* __VIA_I2C_H__ */ 62