Adapted the TMP102 sensor to Contiki's sensor API
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93b9089164
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151f532225
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2011, Zolertia(TM) is a trademark of Advancare,SL
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* Copyright (c) 2010-2016, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -32,9 +32,10 @@
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/*---------------------------------------------------------------------------*/
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/**
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* \file
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* A quick program for testing the tmp102 driver in the Z1 platform
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* A quick program for testing the tmp102 sensor in the Z1 platform
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* \author
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* Enric M. Calvo <ecalvo@zolertia.com>
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* Antonio Lignan <alinan@zolertia.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include <stdio.h>
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@ -44,7 +45,7 @@
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/*---------------------------------------------------------------------------*/
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#define TMP102_READ_INTERVAL (CLOCK_SECOND / 2)
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/*---------------------------------------------------------------------------*/
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PROCESS(temp_process, "Test Temperature process");
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PROCESS(temp_process, "TMP102 Temperature sensor process");
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AUTOSTART_PROCESSES(&temp_process);
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/*---------------------------------------------------------------------------*/
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static struct etimer et;
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@ -55,12 +56,12 @@ PROCESS_THREAD(temp_process, ev, data)
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int16_t temp;
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tmp102_init();
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SENSORS_ACTIVATE(tmp102);
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while(1) {
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etimer_set(&et, TMP102_READ_INTERVAL);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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temp = tmp102_read_temp_x100();
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temp = tmp102.value(TMP102_READ);
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printf("Temp = %d\n", temp);
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}
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PROCESS_END();
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/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* Copyright (c) 2016, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -29,47 +30,34 @@
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* This file is part of the Contiki operating system.
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*
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \file
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* Device drivers for tmp102 temperature sensor in Zolertia Z1.
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* \author
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* Enric M. Calvo, Zolertia <ecalvo@zolertia.com>
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* Marcus Lundén, SICS <mlunden@sics.se>
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* Antonio Lignan, Zolertia <alinan@zolertia.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include <stdio.h>
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#include "contiki.h"
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#include "i2cmaster.h"
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#include "tmp102.h"
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/* Bitmasks and bit flag variable for keeping track of tmp102 status. */
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enum TMP102_STATUSTYPES {
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/* must be a bit and not more, not using 0x00. */
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INITED = 0x01,
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RUNNING = 0x02,
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STOPPED = 0x04,
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LOW_POWER = 0x08,
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AAA = 0x10, /* available to extend this... */
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BBB = 0x20, /* available to extend this... */
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CCC = 0x40, /* available to extend this... */
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DDD = 0x80 /* available to extend this... */
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};
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static enum TMP102_STATUSTYPES _TMP102_STATUS = 0x00;
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#include "lib/sensors.h"
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/*---------------------------------------------------------------------------*/
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/* PROCESS(tmp102_process, "Temperature Sensor process"); */
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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/*---------------------------------------------------------------------------*/
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static uint8_t enabled;
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/*---------------------------------------------------------------------------*/
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/* Init the temperature sensor: ports, pins, registers, interrupts (none enabled), I2C,
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default threshold values etc. */
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void
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tmp102_init(void)
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{
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if(!(_TMP102_STATUS & INITED)) {
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PRINTFDEBUG("TMP102 init\n");
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_TMP102_STATUS |= INITED;
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/* Power Up TMP102 via pin */
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TMP102_PWR_DIR |= TMP102_PWR_PIN;
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TMP102_PWR_SEL &= ~TMP102_PWR_SEL;
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/* Set up ports and pins for I2C communication */
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i2c_enable();
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}
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enabled = 1;
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}
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/*---------------------------------------------------------------------------*/
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void
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tmp102_stop(void)
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{
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/* Power off */
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TMP102_PWR_OUT &= ~TMP102_PWR_PIN;
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enabled = 0;
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}
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/*---------------------------------------------------------------------------*/
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/* Write to a 16-bit register.
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args:
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reg register to write to
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val value to write
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*/
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void
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tmp102_write_reg(uint8_t reg, uint16_t val)
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{
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i2c_transmitinit(TMP102_ADDR);
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while(i2c_busy());
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PRINTFDEBUG("I2C Ready to TX\n");
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PRINTF("I2C Ready to TX\n");
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i2c_transmit_n(3, tx_buf);
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while(i2c_busy());
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PRINTFDEBUG("WRITE_REG 0x%04X @ reg 0x%02X\n", val, reg);
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PRINTF("WRITE_REG 0x%04X @ reg 0x%02X\n", val, reg);
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}
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/*---------------------------------------------------------------------------*/
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/* Read register.
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args:
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reg what register to read
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returns the value of the read register type uint16_t
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*/
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uint16_t
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tmp102_read_reg(uint8_t reg)
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{
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uint8_t buf[] = { 0x00, 0x00 };
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uint16_t retVal = 0;
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uint8_t rtx = reg;
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PRINTFDEBUG("READ_REG 0x%02X\n", reg);
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PRINTF("READ_REG 0x%02X\n", reg);
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/* transmit the register to read */
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i2c_transmitinit(TMP102_ADDR);
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return retVal;
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}
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/*---------------------------------------------------------------------------*/
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/* Read temperature in a raw format. Further processing will be needed
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to make an interpretation of these 12 or 13-bit data, depending on configuration
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*/
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uint16_t
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tmp102_read_temp_raw(void)
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{
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uint16_t rd = 0;
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rd = tmp102_read_reg(TMP102_TEMP);
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return rd;
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}
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/*---------------------------------------------------------------------------*/
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int16_t
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tmp102_read_temp_x100(void)
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{
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/* Integer part of the temperature value and percents*/
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temp_int = (abstemp >> 8) * sign * 100;
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temp_int += ((abstemp & 0xff) * 100) / 0x100;
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/* See test-tmp102.c on how to print values of temperature with decimals
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fractional part in 1/10000 of degree
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temp_frac = ((abstemp >>4) % 16) * 625;
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Data could be multiplied by 63 to have less bit-growth and 1/1000 precision
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Data could be multiplied by 64 (<< 6) to trade-off precision for speed
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*/
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return temp_int;
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}
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/*---------------------------------------------------------------------------*/
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/* Simple Read temperature. Return is an integer with temperature in 1deg. precision
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Return value is a signed 8 bit integer.
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*/
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int8_t
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tmp102_read_temp_simple(void)
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{
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/* Casted to int8_t: We don't expect temperatures outside -128 to 127 C */
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return tmp102_read_temp_x100() / 100;
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}
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/*---------------------------------------------------------------------------*/
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static int
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configure(int type, int value)
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{
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if(type != SENSORS_ACTIVE) {
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return TMP102_ERROR;
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}
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if(value) {
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tmp102_init();
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} else {
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tmp102_stop();
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}
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enabled = value;
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return TMP102_SUCCESS;
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}
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/*---------------------------------------------------------------------------*/
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static int
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status(int type)
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{
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switch(type) {
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case SENSORS_ACTIVE:
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case SENSORS_READY:
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return enabled;
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}
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return TMP102_SUCCESS;
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}
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/*---------------------------------------------------------------------------*/
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static int
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value(int type)
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{
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return (int)tmp102_read_temp_x100();
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}
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/*---------------------------------------------------------------------------*/
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SENSORS_SENSOR(tmp102, TMP102_SENSOR, value, configure, status);
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/*---------------------------------------------------------------------------*/
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/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* Copyright (c) 2016, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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/**
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* \file
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* Device drivers header file for tmp102 temperature sensor in Zolertia Z1 WSN Platform.
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* Device drivers header file for tmp102 temperature sensor in Zolertia
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* Z1 WSN Platform.
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* \author
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* Enric M. Calvo, Zolertia <ecalvo@zolertia.com>
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* Marcus Lundén, SICS <mlunden@sics.se>
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* Antonio Lignan, Zolertia <alinan@zolertia.com>
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*/
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/* -------------------------------------------------------------------------- */
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#ifndef TMP102_H_
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#define TMP102_H_
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#include <stdio.h>
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#include "lib/sensors.h"
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#include "i2cmaster.h"
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/* -------------------------------------------------------------------------- */
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/* Init the temperature sensor: ports, pins, I2C, interrupts (XXX none so far),
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*/
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void tmp102_init(void);
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/* Write to a register.
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args:
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reg register to write to
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val value to write
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*/
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void tmp102_write_reg(uint8_t reg, uint16_t val);
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/* Read one register.
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args:
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reg what register to read
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returns the value of the read register
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*/
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uint16_t tmp102_read_reg(uint8_t reg);
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/* Read temperature in raw format
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no args needed
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*/
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uint16_t tmp102_read_temp_raw();
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/* Read only integer part of the temperature in 1deg. precision.
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no args needed
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*/
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int8_t tmp102_read_temp_simple();
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/* Read only integer part of the temperature in 1deg. precision.
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no args needed
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*/
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int16_t tmp102_read_temp_x100();
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/* -------------------------------------------------------------------------- */
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/* Reference definitions */
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/* TMP102 slave address */
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#define TMP102_ADDR 0x48
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/* TMP102 registers */
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#define TMP102_TEMP 0x00 // read only
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#define TMP102_TEMP 0x00
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#define TMP102_CONF 0x01
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#define TMP102_TLOW 0x02
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#define TMP102_THIGH 0x03
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/* TMP102 Ports */
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/* Accelerometer hardware ports, pins and registers on the msp430 µC */
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/* TMP102 pin-out */
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#define TMP102_PWR_DIR P5DIR
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#define TMP102_PWR_SEL P5SEL
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#define TMP102_PWR_SEL2 P5SEL2
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#define TMP102_PWR_REN P5REN
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#define TMP102_PWR_OUT P5OUT
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#define TMP102_PWR_PIN (1<<0) // P5.0
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//#define TMP102_INT_PIN (1<<7) // P1.7
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#define TMP102_PWR_PIN (1<<0) /* P5.0 */
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/* -------------------------------------------------------------------------- */
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#define TMP102_SUCCESS 0
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#define TMP102_ERROR (-1)
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#define TMP102_READ 0x01
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/* -------------------------------------------------------------------------- */
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#define TMP102_SENSOR "TMP102 sensor"
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/* -------------------------------------------------------------------------- */
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extern const struct sensors_sensor tmp102;
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/* -------------------------------------------------------------------------- */
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#endif /* ifndef TMP102_H_ */
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