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refactored some ADC code into sky-sensors and made it possible to turn off sensors to save energy
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joxe
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@ -1,10 +1,10 @@
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# $Id: Makefile.sky,v 1.34 2010/01/14 22:26:38 nifi Exp $
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# $Id: Makefile.sky,v 1.35 2010/02/02 20:59:45 joxe Exp $
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ARCH=msp430.c leds.c watchdog.c spi.c ds2411.c \
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xmem.c i2c.c sht11.c light-sensor.c acc-sensor.c battery-sensor.c \
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cc2420.c cc2420-aes.c cc2420-arch.c cc2420-arch-sfd.c sht11-sensor.c \
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node-id.c sensors.c button-sensor.c cfs-coffee.c \
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node-id.c sensors.c button-sensor.c cfs-coffee.c sky-sensors.c\
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radio-sensor.c uart1.c uip-ipchksum.c \
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checkpoint-arch.c #slip.c slip_uart1.c
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@ -26,14 +26,14 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: battery-sensor.c,v 1.7 2010/01/15 21:37:15 nifi Exp $
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* $Id: battery-sensor.c,v 1.8 2010/02/02 20:59:45 joxe Exp $
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*
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* -----------------------------------------------------------------
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*
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* Author : Adam Dunkels, Joakim Eriksson, Niclas Finne
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* Created : 2005-11-01
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* Updated : $Date: 2010/01/15 21:37:15 $
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* $Revision: 1.7 $
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* Updated : $Date: 2010/02/02 20:59:45 $
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* $Revision: 1.8 $
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*/
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#include "dev/battery-sensor.h"
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@ -45,25 +45,11 @@ static uint8_t active;
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static void
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activate(void)
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{
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/* This assumes that some other sensor system already did setup the ADC */
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/* (in the case of the sky platform it is sensors_light_init that does it) */
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P6SEL |= 0x80;
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P6DIR = 0xff;
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P6OUT = 0x00;
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/* stop converting immediately */
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ADC12CTL0 &= ~ENC;
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ADC12CTL1 &= ~CONSEQ_3;
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/* Configure ADC12_2 to sample channel 11 (voltage) and use */
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/* the Vref+ as reference (SREF_1) since it is a stable reference */
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ADC12MCTL2 = (INCH_11 + SREF_1);
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ADC12CTL1 |= CONSEQ_3;
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ADC12CTL0 |= ENC | ADC12SC;
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/* Irq_adc12_activate(&battery_sensor, 6, (INCH_11 + SREF_1)); */
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sky_sensors_activate(0x80);
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active = 1;
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}
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@ -71,6 +57,7 @@ activate(void)
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static void
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deactivate(void)
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{
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sky_sensors_deactivate(0x80);
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active = 0;
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}
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/*---------------------------------------------------------------------------*/
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@ -28,7 +28,7 @@
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: light-sensor.c,v 1.3 2010/01/14 20:23:02 adamdunkels Exp $
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* @(#)$Id: light-sensor.c,v 1.4 2010/02/02 20:59:45 joxe Exp $
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*/
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#include <stdlib.h>
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@ -37,6 +37,7 @@
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#include "contiki.h"
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#include "lib/sensors.h"
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#include "sky-sensors.h"
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#include "dev/light-sensor.h"
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const struct sensors_sensor light_sensor;
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@ -48,21 +49,10 @@ const struct sensors_sensor light_sensor;
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static void
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light_sensor_init(void)
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{
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P6SEL |= 0x30;
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P6DIR = 0xff;
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P6OUT = 0x00;
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/* Set up the ADC. */
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ADC12CTL0 = REF2_5V + SHT0_6 + SHT1_6 + MSC; // Setup ADC12, ref., sampling time
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ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0; // Use sampling timer, repeat-sequenc-of-channels
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ADC12MCTL0 = (INCH_4 + SREF_0); // photodiode 1 (P64)
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ADC12MCTL1 = (INCH_5 + SREF_0); // photodiode 2 (P65)
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ADC12CTL0 |= ADC12ON + REFON;
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ADC12CTL0 |= ENC; // enable conversion
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ADC12CTL0 |= ADC12SC; // sample & convert
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sky_sensors_activate(0x30);
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}
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/*---------------------------------------------------------------------------*/
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static int
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@ -103,8 +93,7 @@ configure(int type, int c)
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light_sensor_init();
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}
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} else {
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/* shut down sensing */
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ADC12CTL0 = 0;
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sky_sensors_deactivate(0x30);
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}
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}
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return 0;
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95
platform/sky/dev/sky-sensors.c
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95
platform/sky/dev/sky-sensors.c
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@ -0,0 +1,95 @@
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/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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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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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: sky-sensors.c,v 1.1 2010/02/02 20:59:45 joxe Exp $
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*
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* -----------------------------------------------------------------
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*
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* Author : Joakim Eriksson
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* Created : 2010-02-02
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* Updated : $Date: 2010/02/02 20:59:45 $
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* $Revision: 1.1 $
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*/
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#include <stdlib.h>
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#include <io.h>
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#include "contiki.h"
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static uint8_t adc_on;
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/*---------------------------------------------------------------------------*/
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void
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sky_sensors_activate(uint8_t type)
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{
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uint8_t pre = adc_on;
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adc_on |= type;
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P6SEL |= type;
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if(pre == 0 && adc_on > 0) {
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P6DIR = 0xff;
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P6OUT = 0x00;
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/* if nothing was started before, start up the ADC system */
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/* Set up the ADC. */
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ADC12CTL0 = REF2_5V + SHT0_6 + SHT1_6 + MSC; /* Setup ADC12, ref., sampling time */
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ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0; /* Use sampling timer, repeat-sequenc-of-channels */
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/* convert up to MEM4 */
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ADC12MCTL4 |= EOS;
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ADC12CTL0 |= ADC12ON + REFON;
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ADC12CTL0 |= ENC; /* enable conversion */
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ADC12CTL0 |= ADC12SC; /* sample & convert */
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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sky_sensors_deactivate(uint8_t type)
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{
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adc_on &= ~type;
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if(adc_on == 0) {
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/* stop converting immediately, turn off reference voltage, etc. */
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/* wait for conversion to stop */
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ADC12CTL0 &= ~ENC;
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/* need to remove CONSEQ_3 if not EOS is configured */
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ADC12CTL1 &= ~CONSEQ_3;
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while(ADC12CTL1 & ADC12BUSY);
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ADC12CTL0 = 0;
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ADC12CTL1 = 0;
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P6DIR = 0x00;
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P6OUT = 0x00;
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P6SEL = 0x00;
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}
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}
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/*---------------------------------------------------------------------------*/
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46
platform/sky/dev/sky-sensors.h
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46
platform/sky/dev/sky-sensors.h
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@ -0,0 +1,46 @@
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/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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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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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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* $Id: sky-sensors.h,v 1.1 2010/02/02 20:59:45 joxe Exp $
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*
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* -----------------------------------------------------------------
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*
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* Author : Joakim Eriksson
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* Created : 2010-02-02
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* Updated : $Date: 2010/02/02 20:59:45 $
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* $Revision: 1.1 $
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*/
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#ifndef __SKY_SENSORS_H__
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#define __SKY_SENSORS_H__
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void sky_sensors_activate(uint8_t);
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void sky_sensors_deactivate(uint8_t);
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#endif /* __SKY_SENSORS_H__ */
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