mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
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>
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/*
|
|
* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
|
|
* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License as published by the Free Software Foundation;
|
|
* either version 2, or (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
|
|
* the implied warranty of MERCHANTABILITY or FITNESS FOR
|
|
* A PARTICULAR PURPOSE.See the GNU General Public License
|
|
* for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc.,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
#ifndef __VIA_I2C_H__
|
|
#define __VIA_I2C_H__
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/i2c-algo-bit.h>
|
|
|
|
struct via_i2c_stuff {
|
|
u16 i2c_port; /* GPIO or I2C port */
|
|
struct i2c_adapter adapter;
|
|
struct i2c_algo_bit_data algo;
|
|
};
|
|
|
|
#define I2CPORT 0x3c4
|
|
#define I2CPORTINDEX 0x31
|
|
#define GPIOPORT 0x3C4
|
|
#define GPIOPORTINDEX 0x2C
|
|
#define I2C_BUS 1
|
|
#define GPIO_BUS 2
|
|
#define DELAYPORT 0x3C3
|
|
|
|
int viafb_i2c_readbyte(u8 slave_addr, u8 index, u8 *pdata);
|
|
int viafb_i2c_writebyte(u8 slave_addr, u8 index, u8 data);
|
|
int viafb_i2c_readbytes(u8 slave_addr, u8 index, u8 *buff, int buff_len);
|
|
int viafb_create_i2c_bus(void *par);
|
|
void viafb_delete_i2c_buss(void *par);
|
|
#endif /* __VIA_I2C_H__ */
|