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

The port was done jointly by Zolertia and George Oikonomou (University of Bristol).
2015-02-04 22:13:44 +01:00 · 2015-02-04 22:13:44 +01:00 · 330e450ba4
commit 330e450ba4
parent 2cee62eb33
33 changed files with 4002 additions and 0 deletions
--- a/platform/remote/dev/sht25.c
+++ b/platform/remote/dev/sht25.c
@ -0,0 +1,138 @@
+/*
+ * 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.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+/*---------------------------------------------------------------------------*/
+/**
+ * \addtogroup remote-sht25-sensor
+ * @{
+ *
+ * \file
+ *         SHT25 temperature and humidity sensor driver
+ * \author
+ *         Antonio Lignan <alinan@zolertia.com>
+ */
+/*---------------------------------------------------------------------------*/
+#include <stdio.h>
+#include "contiki.h"
+#include "dev/i2c.h"
+#include "dev/sht25.h"
+#include "lib/sensors.h"
+/*---------------------------------------------------------------------------*/
+#warning I2C SDA AND SCL are inverted in JP8 connector, inverted in init() call
+/*---------------------------------------------------------------------------*/
+static uint8_t enabled;
+/*---------------------------------------------------------------------------*/
+static int
+configure(int type, int value)
+{
+  if(type != SENSORS_ACTIVE) {
+    return SHT25_ERROR;
+  }
+  if(value) {
+    i2c_init(I2C_SCL_PORT, I2C_SCL_PIN, I2C_SDA_PORT, I2C_SDA_PIN, 
+             I2C_SCL_NORMAL_BUS_SPEED);
+  }
+  enabled = value;
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static int
+status(int type)
+{
+  switch(type) {
+  case SENSORS_ACTIVE:
+  case SENSORS_READY:
+    return enabled;
+  }
+  return 0;
+}
+/*---------------------------------------------------------------------------*/
+static uint16_t
+sht25_read_reg(uint8_t reg, uint8_t *buf, uint8_t regNum)
+{
+  if(i2c_single_send(SHT25_ADDR, reg) == I2C_MASTER_ERR_NONE) {
+    if(i2c_burst_receive(SHT25_ADDR, buf, regNum) == I2C_MASTER_ERR_NONE) {
+      return SHT25_SUCCESS;
+    }
+  }
+  return SHT25_ERROR;
+}
+/*---------------------------------------------------------------------------*/
+static int16_t
+sht25_convert(uint8_t variable, uint16_t value)
+{
+  int16_t rd;
+  uint32_t buff;
+  buff = (uint32_t)value;
+  if(variable == SHT25_VAL_TEMP) {
+    buff *= 17572;
+    buff = buff >> 16;
+    rd = (int16_t)buff - 4685;
+  } else {
+    buff *= 12500;
+    buff = buff >> 16;
+    rd = (int16_t)buff - 600;
+    rd = (rd > 10000) ? 10000 : rd;
+  }
+  return rd;
+}
+/*---------------------------------------------------------------------------*/
+static int16_t
+sht25_read(uint8_t variable, uint16_t *rd)
+{
+  uint8_t buf[2];
+  uint16_t raw;
+
+  if((variable != SHT25_VAL_TEMP) && (variable != SHT25_VAL_HUM)) {
+    return SHT25_ERROR;
+  }
+
+  if (sht25_read_reg(variable, buf, 2) == SHT25_SUCCESS){
+    raw = (buf[0] << 8) + buf[1];
+    *rd = sht25_convert(variable, raw);
+    return SHT25_SUCCESS;
+  }
+  return SHT25_ERROR;
+}
+/*---------------------------------------------------------------------------*/
+static int
+value(int type)
+{
+  uint16_t val;
+  if (sht25_read(type, &val) == SHT25_SUCCESS){
+    return val;
+  }
+  return SHT25_ERROR;
+}
+/*---------------------------------------------------------------------------*/
+SENSORS_SENSOR(sht25, SHT25_SENSOR, value, configure, status);
+/*---------------------------------------------------------------------------*/
+/** @} */