66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2010, 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.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* includes for i2c core functions
|
|
* \author
|
|
* Robert Olsson <robert@radio-sensors.com>
|
|
*/
|
|
|
|
#include "contiki.h"
|
|
|
|
/* Here we define the i2c address for dev we support */
|
|
#define I2C_AT24MAC_ADDR 0xB0 /* EUI64 ADDR */
|
|
#define I2C_SHT2X_ADDR (0x40 << 1) /* SHT2X ADDR */
|
|
#define I2C_BME280_ADDR (0x77 << 1) /* Alternative 0x76 */
|
|
|
|
/* Here we define a enumration for devices */
|
|
#define I2C_AT24MAC (1<<0)
|
|
#define I2C_SHT2X (1<<1)
|
|
#define I2C_CO2SA (1<<2) /* Sense-Air CO2 */
|
|
#define I2C_BME280 (1<<3)
|
|
|
|
#define I2C_READ 1
|
|
#define I2C_WRITE 0
|
|
|
|
void i2c_init(uint32_t speed);
|
|
uint8_t i2c_start(uint8_t addr);
|
|
void i2c_start_wait(uint8_t addr);
|
|
void i2c_stop(void);
|
|
void i2c_write(uint8_t u8data);
|
|
uint8_t i2c_readAck(void);
|
|
uint8_t i2c_readNak(void);
|
|
uint8_t i2c_getstatus(void);
|
|
uint16_t i2c_probe(void);
|
|
void i2c_read_mem(uint8_t addr, uint8_t reg, uint8_t buf[], uint8_t bytes);
|
|
void i2c_write_mem(uint8_t addr, uint8_t reg, uint8_t value);
|
|
void i2c_at24mac_read(char *buf, uint8_t eui64);
|
|
extern uint16_t i2c_probed; /* i2c devices we have probed */
|