1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
4 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5
6 */
7 #ifndef __VIA_I2C_H__
8 #define __VIA_I2C_H__
9
10 #include <linux/i2c.h>
11 #include <linux/i2c-algo-bit.h>
12
13 struct via_i2c_stuff {
14 u16 i2c_port; /* GPIO or I2C port */
15 u16 is_active; /* Being used as I2C? */
16 struct i2c_adapter adapter;
17 struct i2c_algo_bit_data algo;
18 };
19
20
21 int viafb_i2c_readbyte(u8 adap, u8 slave_addr, u8 index, u8 *pdata);
22 int viafb_i2c_writebyte(u8 adap, u8 slave_addr, u8 index, u8 data);
23 int viafb_i2c_readbytes(u8 adap, u8 slave_addr, u8 index, u8 *buff, int buff_len);
24 struct i2c_adapter *viafb_find_i2c_adapter(enum viafb_i2c_adap which);
25
26 extern int viafb_i2c_init(void);
27 extern void viafb_i2c_exit(void);
28 #endif /* __VIA_I2C_H__ */
29
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