92 lines
3.2 KiB
C
92 lines
3.2 KiB
C
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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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*
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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: 2010/02/06 18:28:26 $
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* $Revision: 1.2 $
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*/
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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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/* ADC12MCTL9 |= 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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