1 /* $NetBSD: i2c-algo-bit.h,v 1.4 2014/07/26 06:26:39 riastradh Exp $ */
2
3 /*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _LINUX_I2C_ALGO_BIT_H_
33 #define _LINUX_I2C_ALGO_BIT_H_
34
35 #include <linux/i2c.h>
36
37 struct i2c_algo_bit_data {
38 void *data;
39 void (*setsda)(void *, int);
40 void (*setscl)(void *, int);
41 int (*getsda)(void *);
42 int (*getscl)(void *);
43 int (*pre_xfer)(struct i2c_adapter *);
44 void (*post_xfer)(struct i2c_adapter *);
45 int udelay;
46 int timeout;
47 };
48
49 /* XXX Make the nm output a little more greppable... */
50 #define i2c_bit_algo linux_i2c_bit_algo
51
52 extern const struct i2c_algorithm i2c_bit_algo;
53
54 static inline int
i2c_bit_add_bus(struct i2c_adapter * adapter)55 i2c_bit_add_bus(struct i2c_adapter *adapter)
56 {
57
58 adapter->algo = &i2c_bit_algo;
59 return 0;
60 }
61
62 #endif /* _LINUX_I2C_ALGO_BIT_H_ */
63