49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006, Swedish Institute of Computer Science
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef I2C_H
|
||
|
|
#define I2C_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* On the Tmote sky access to I2C/SPI/UART0 must always be exclusive.
|
||
|
|
*/
|
||
|
|
#define I2C_ENABLE() (i2c_enable())
|
||
|
|
#define I2C_DISABLE() (i2c_disable())
|
||
|
|
|
||
|
|
void i2c_enable(void);
|
||
|
|
void i2c_disable(void);
|
||
|
|
int i2c_start(void);
|
||
|
|
void i2c_stop(void);
|
||
|
|
|
||
|
|
int i2c_write(unsigned);
|
||
|
|
unsigned i2c_read(int send_ack);
|
||
|
|
|
||
|
|
#endif /* I2C_H */
|