2 * Copyright (c) 2013-2019 François Tigeot <ftigeot@wolfpond.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <linux/mod_devicetable.h>
31 #include <linux/device.h> /* for struct device */
32 #include <linux/sched.h> /* for completion */
33 #include <linux/mutex.h>
34 #include <uapi/linux/i2c.h>
36 #include <bus/iicbus/iic.h>
38 #define I2C_M_RD IIC_M_RD
39 #define I2C_M_NOSTART IIC_M_NOSTART
42 const struct i2c_algorithm *algo;
56 char name[I2C_NAME_SIZE];
57 struct i2c_adapter *adapter;
60 extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
63 struct i2c_algorithm {
64 int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs,
67 u32 (*functionality) (struct i2c_adapter *);
70 extern int i2c_add_adapter(struct i2c_adapter *);
71 extern void i2c_del_adapter(struct i2c_adapter *);
74 i2c_set_adapdata(struct i2c_adapter *dev, void *data)
76 dev->private_data = data;
80 i2c_get_adapdata(const struct i2c_adapter *dev)
82 return dev->private_data;
85 struct i2c_board_info {
86 char type[I2C_NAME_SIZE];
91 i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
93 #endif /* _LINUX_I2C_H_ */