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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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This commit is contained in:
joxe 2010-02-02 20:59:45 +00:00
parent fcf60e9260
commit fd4aebdf7f
5 changed files with 152 additions and 35 deletions
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4
platform/sky/Makefile.sky
View file

@ -1,10 +1,10 @@
# $Id: Makefile.sky,v 1.34 2010/01/14 22:26:38 nifi Exp $
# $Id: Makefile.sky,v 1.35 2010/02/02 20:59:45 joxe Exp $
ARCH=msp430.c leds.c watchdog.c spi.c ds2411.c \
xmem.c i2c.c sht11.c light-sensor.c acc-sensor.c battery-sensor.c \
cc2420.c cc2420-aes.c cc2420-arch.c cc2420-arch-sfd.c sht11-sensor.c \
node-id.c sensors.c button-sensor.c cfs-coffee.c \
node-id.c sensors.c button-sensor.c cfs-coffee.c sky-sensors.c\
radio-sensor.c uart1.c uip-ipchksum.c \
checkpoint-arch.c #slip.c slip_uart1.c

23
platform/sky/dev/battery-sensor.c
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@ -26,14 +26,14 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: battery-sensor.c,v 1.7 2010/01/15 21:37:15 nifi Exp $
* $Id: battery-sensor.c,v 1.8 2010/02/02 20:59:45 joxe Exp $
*
* -----------------------------------------------------------------
*
* Author : Adam Dunkels, Joakim Eriksson, Niclas Finne
* Created : 2005-11-01
* Updated : $Date: 2010/01/15 21:37:15 $
* $Revision: 1.7 $
* Updated : $Date: 2010/02/02 20:59:45 $
* $Revision: 1.8 $
*/
#include "dev/battery-sensor.h"
@ -45,25 +45,11 @@ static uint8_t active;
static void
activate(void)
{
/* This assumes that some other sensor system already did setup the ADC */
/* (in the case of the sky platform it is sensors_light_init that does it) */
P6SEL |= 0x80;
P6DIR = 0xff;
P6OUT = 0x00;
/* stop converting immediately */
ADC12CTL0 &= ~ENC;
ADC12CTL1 &= ~CONSEQ_3;
/* Configure ADC12_2 to sample channel 11 (voltage) and use */
/* the Vref+ as reference (SREF_1) since it is a stable reference */
ADC12MCTL2 = (INCH_11 + SREF_1);
ADC12CTL1 |= CONSEQ_3;
ADC12CTL0 |= ENC | ADC12SC;
/* Irq_adc12_activate(&battery_sensor, 6, (INCH_11 + SREF_1)); */
sky_sensors_activate(0x80);
active = 1;
}
@ -71,6 +57,7 @@ activate(void)
static void
deactivate(void)
{
sky_sensors_deactivate(0x80);
active = 0;
}
/*---------------------------------------------------------------------------*/

19
platform/sky/dev/light-sensor.c
View file

@ -28,7 +28,7 @@
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: light-sensor.c,v 1.3 2010/01/14 20:23:02 adamdunkels Exp $
* @(#)$Id: light-sensor.c,v 1.4 2010/02/02 20:59:45 joxe Exp $
*/
#include <stdlib.h>
@ -37,6 +37,7 @@
#include "contiki.h"
#include "lib/sensors.h"
#include "sky-sensors.h"
#include "dev/light-sensor.h"
const struct sensors_sensor light_sensor;
@ -48,21 +49,10 @@ const struct sensors_sensor light_sensor;
static void
light_sensor_init(void)
{
P6SEL |= 0x30;
P6DIR = 0xff;
P6OUT = 0x00;
/* Set up the ADC. */
ADC12CTL0 = REF2_5V + SHT0_6 + SHT1_6 + MSC; // Setup ADC12, ref., sampling time
ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0; // Use sampling timer, repeat-sequenc-of-channels
ADC12MCTL0 = (INCH_4 + SREF_0); // photodiode 1 (P64)
ADC12MCTL1 = (INCH_5 + SREF_0); // photodiode 2 (P65)
ADC12CTL0 |= ADC12ON + REFON;
ADC12CTL0 |= ENC; // enable conversion
ADC12CTL0 |= ADC12SC; // sample & convert
sky_sensors_activate(0x30);
}
/*---------------------------------------------------------------------------*/
static int
@ -103,8 +93,7 @@ configure(int type, int c)
light_sensor_init();
}
} else {
/* shut down sensing */
ADC12CTL0 = 0;
sky_sensors_deactivate(0x30);
}
}
return 0;

95
platform/sky/dev/sky-sensors.c Normal file
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@ -0,0 +1,95 @@
/*
* 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.
*
* This file is part of the Contiki operating system.
*
* $Id: sky-sensors.c,v 1.1 2010/02/02 20:59:45 joxe Exp $
*
* -----------------------------------------------------------------
*
* Author : Joakim Eriksson
* Created : 2010-02-02
* Updated : $Date: 2010/02/02 20:59:45 $
* $Revision: 1.1 $
*/
#include <stdlib.h>
#include <io.h>
#include "contiki.h"
static uint8_t adc_on;
/*---------------------------------------------------------------------------*/
void
sky_sensors_activate(uint8_t type)
{
uint8_t pre = adc_on;
adc_on |= type;
P6SEL |= type;
if(pre == 0 && adc_on > 0) {
P6DIR = 0xff;
P6OUT = 0x00;
/* if nothing was started before, start up the ADC system */
/* Set up the ADC. */
ADC12CTL0 = REF2_5V + SHT0_6 + SHT1_6 + MSC; /* Setup ADC12, ref., sampling time */
ADC12CTL1 = SHP + CONSEQ_3 + CSTARTADD_0; /* Use sampling timer, repeat-sequenc-of-channels */
/* convert up to MEM4 */
ADC12MCTL4 |= EOS;
ADC12CTL0 |= ADC12ON + REFON;
ADC12CTL0 |= ENC; /* enable conversion */
ADC12CTL0 |= ADC12SC; /* sample & convert */
}
}
/*---------------------------------------------------------------------------*/
void
sky_sensors_deactivate(uint8_t type)
{
adc_on &= ~type;
if(adc_on == 0) {
/* stop converting immediately, turn off reference voltage, etc. */
/* wait for conversion to stop */
ADC12CTL0 &= ~ENC;
/* need to remove CONSEQ_3 if not EOS is configured */
ADC12CTL1 &= ~CONSEQ_3;
while(ADC12CTL1 & ADC12BUSY);
ADC12CTL0 = 0;
ADC12CTL1 = 0;
P6DIR = 0x00;
P6OUT = 0x00;
P6SEL = 0x00;
}
}
/*---------------------------------------------------------------------------*/

46
platform/sky/dev/sky-sensors.h Normal file
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@ -0,0 +1,46 @@
/*
* 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.
*
* This file is part of the Contiki operating system.
* $Id: sky-sensors.h,v 1.1 2010/02/02 20:59:45 joxe Exp $
*
* -----------------------------------------------------------------
*
* Author : Joakim Eriksson
* Created : 2010-02-02
* Updated : $Date: 2010/02/02 20:59:45 $
* $Revision: 1.1 $
*/
#ifndef __SKY_SENSORS_H__
#define __SKY_SENSORS_H__
void sky_sensors_activate(uint8_t);
void sky_sensors_deactivate(uint8_t);
#endif /* __SKY_SENSORS_H__ */