include/linux/via_i2c.h

   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__ */