deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Zolertia Re-Mote platform ported to Contiki, developed whitin RERUM FP7 European project (grant #609094).

Browse source 
The port was done jointly by Zolertia and George Oikonomou (University of Bristol).
This commit is contained in:
Antonio Lignan 2015-02-04 22:13:44 +01:00
parent 2cee62eb33
commit 330e450ba4
33 changed files with 4002 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

178
platform/remote/dev/tsl2563.c Normal file
View file

@ -0,0 +1,178 @@
/*
* Copyright (c) 2015, Zolertia - http://www.zolertia.com
* 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.
*
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup remote-tsl2563-sensor
* @{
*
* \file
* Driver for the Re-Mote external TSL2563 light sensor (Ziglet)
*
* \author
* Antonio Lignan <alinan@zolertia.com>
* Toni Lozano <tlozano@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include <stdio.h>
#include "contiki.h"
#include "dev/i2c.h"
#include "lib/sensors.h"
#include "tsl2563.h"
/*---------------------------------------------------------------------------*/
#warning I2C SDA AND SCL are inverted in JP8 connector, inverted in init() call
/*---------------------------------------------------------------------------*/
static uint8_t enabled;
/*---------------------------------------------------------------------------*/
static uint16_t
calculateLux(uint8_t *buf)
{
uint32_t ch0, ch1 = 0;
uint32_t aux = (1 << 14);
uint32_t ratio, lratio, tmp = 0;
uint16_t buffer[2];
buffer[0] = (buf[1] << 8 | (buf[0]));
buffer[1] = (buf[3] << 8 | (buf[2]));
ch0 = (buffer[0] * aux) >> 10;
ch1 = (buffer[1] * aux) >> 10;
ratio = (ch1 << 10);
ratio = ratio / ch0;
lratio = (ratio + 1) >> 1;
if((lratio >= 0) && (lratio <= K1T)) {
tmp = (ch0 * B1T) - (ch1 * M1T);
} else if(lratio <= K2T) {
tmp = (ch0 * B2T) - (ch1 * M2T);
} else if(lratio <= K3T) {
tmp = (ch0 * B3T) - (ch1 * M3T);
} else if(lratio <= K4T) {
tmp = (ch0 * B4T) - (ch1 * M4T);
} else if(lratio <= K5T) {
tmp = (ch0 * B5T) - (ch1 * M5T);
} else if(lratio <= K6T) {
tmp = (ch0 * B6T) - (ch1 * M6T);
} else if(lratio <= K7T) {
tmp = (ch0 * B7T) - (ch1 * M7T);
} else if(lratio > K8T) {
tmp = (ch0 * B8T) - (ch1 * M8T);
}
if(tmp < 0) {
tmp = 0;
}
tmp += (1 << 13);
return tmp >> 14;
}
/*---------------------------------------------------------------------------*/
static int
tsl2563_read_reg(uint8_t reg, uint8_t *buf, uint8_t regNum)
{
if(i2c_single_send(TSL2563_ADDR, reg) == I2C_MASTER_ERR_NONE) {
if(i2c_burst_receive(TSL2563_ADDR, buf, regNum) == I2C_MASTER_ERR_NONE) {
return TSL2563_SUCCESS;
}
}
return TSL2563_ERROR;
}
/*---------------------------------------------------------------------------*/
static int
light_ziglet_on(void)
{
if(i2c_single_send(TSL2563_ADDR, (uint8_t)TSL2563_PWRN) == I2C_MASTER_ERR_NONE) {
return TSL2563_SUCCESS;
}
return TSL2563_ERROR;
}
/*---------------------------------------------------------------------------*/
static int
light_ziglet_off(void)
{
if(i2c_single_send(TSL2563_ADDR, (uint8_t)TSL2563_PWROFF) == I2C_MASTER_ERR_NONE) {
return TSL2563_SUCCESS;
}
return TSL2563_ERROR;
}
/*---------------------------------------------------------------------------*/
static int
light_ziglet_read(uint16_t *lux)
{
uint8_t buf[4];
if(light_ziglet_on() == TSL2563_SUCCESS) {
if(tsl2563_read_reg(TSL2563_READ, buf, 4) == TSL2563_SUCCESS) {
*lux = calculateLux(buf);
return light_ziglet_off();
}
}
return TSL2563_ERROR;
}
/*---------------------------------------------------------------------------*/
static int
configure(int type, int value)
{
if(type != SENSORS_ACTIVE) {
return TSL2563_ERROR;
}
enabled = value;
if(value) {
i2c_init(I2C_SCL_PORT, I2C_SCL_PIN, I2C_SDA_PORT, I2C_SDA_PIN,
I2C_SCL_NORMAL_BUS_SPEED);
} else {
light_ziglet_off();
}
return TSL2563_SUCCESS;
}
/*---------------------------------------------------------------------------*/
static int
status(int type)
{
switch(type) {
case SENSORS_ACTIVE:
case SENSORS_READY:
return enabled;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
value(int type)
{
uint16_t lux;
if(type == TSL2563_VAL_READ) {
if(light_ziglet_read(&lux) != TSL2563_ERROR) {
return lux;
}
}
return TSL2563_ERROR;
}
/*---------------------------------------------------------------------------*/
SENSORS_SENSOR(tsl2563, TSL2563_SENSOR, value, configure, status);
/*---------------------------------------------------------------------------*/
/** @} */