| 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 |
| 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 | |