9f291634aa
via_i2c.c, via_i2c.h: Implement i2c specification. viamode.c, viamode.c: all support modes information. Signed-off-by: Joseph Chan <josephchan@via.com.tw> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __VIA_I2C_H__
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#define __VIA_I2C_H__
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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struct via_i2c_stuff {
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u16 i2c_port; /* GPIO or I2C port */
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struct i2c_adapter adapter;
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struct i2c_algo_bit_data algo;
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};
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#define I2CPORT 0x3c4
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#define I2CPORTINDEX 0x31
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#define GPIOPORT 0x3C4
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#define GPIOPORTINDEX 0x2C
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#define I2C_BUS 1
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#define GPIO_BUS 2
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#define DELAYPORT 0x3C3
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int viafb_i2c_readbyte(u8 slave_addr, u8 index, u8 *pdata);
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int viafb_i2c_writebyte(u8 slave_addr, u8 index, u8 data);
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int viafb_i2c_readbytes(u8 slave_addr, u8 index, u8 *buff, int buff_len);
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int viafb_create_i2c_bus(void *par);
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void viafb_delete_i2c_buss(void *par);
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#endif /* __VIA_I2C_H__ */
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