1 /*- 2 * Copyright (c) 2021 Beckhoff Automation GmbH & Co. KG 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 */ 26 27 #ifndef _LINUX_I2C_ALGO_BIT_H_ 28 #define _LINUX_I2C_ALGO_BIT_H_ 29 30 #include <linux/i2c.h> 31 32 struct i2c_algo_bit_data { 33 void *data; 34 void (*setsda) (void *data, int state); 35 void (*setscl) (void *data, int state); 36 int (*getsda) (void *data); 37 int (*getscl) (void *data); 38 int (*pre_xfer) (struct i2c_adapter *); 39 void (*post_xfer) (struct i2c_adapter *); 40 41 int udelay; 42 int timeout; 43 }; 44 45 int lkpi_i2c_bit_add_bus(struct i2c_adapter *adapter); 46 47 #define i2c_bit_add_bus(adapter) lkpi_i2c_bit_add_bus(adapter) 48 49 #endif /*_LINUX_I2C_ALGO_BIT_H_ */ 50