contiki/platform/avr-rss2/dev/pms5003-arch.c
Peter Sjödin 58842a57b8 Driver for Plantower PMS 5003 dust sensors.
Platform-specific files for avr-rss2.
2017-10-10 10:34:10 +02:00

81 lines
2.8 KiB
C

/*
* Copyright (c) 2017, Peter Sjodin, KTH Royal Institute of Technology
* 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.
*
*
* Author : Peter Sjodin psj@kth.se
* Created : 2017-01-06
*/
#include "contiki.h"
#include "i2c.h"
#include "watchdog.h"
#include "dev/pms5003/pms5003.h"
#include "pms5003-arch.h"
static uint8_t standbymode;
/*---------------------------------------------------------------------------*/
/*
* Configure low power standby mode (PIN3, SET)
*/
void
pms5003_set_standby_mode(uint8_t mode) {
SET_PMS_DDR |= (1 << PMS_SET);
if (mode == STANDBY_MODE_OFF)
SET_PMS_PORT |= (1 << PMS_SET);
else if (mode == STANDBY_MODE_ON)
SET_PMS_PORT &= ~(1 << PMS_SET);
standbymode = mode;
}
/*---------------------------------------------------------------------------*/
/*
* Return current standby mode
*/
uint8_t
pms5003_get_standby_mode(void) {
return standbymode;
}
/*---------------------------------------------------------------------------*/
/*
* Probe I2C bus for PMS5003 device
*/
uint8_t
pms5003_i2c_probe(void) {
watchdog_periodic();
if(!i2c_start(I2C_PMS5003_ADDR)) {
i2c_stop();
i2c_probed |= I2C_PMS5003;
return 1;
}
i2c_probed &= ~I2C_PMS5003;
return 0;
}
/*---------------------------------------------------------------------------*/