From 9cc800d72898b56d9aaf64e05a898cc9e34affa0 Mon Sep 17 00:00:00 2001 From: George Oikonomou Date: Wed, 11 Feb 2015 17:54:44 +0100 Subject: [PATCH] Add CC2538 VDD sensor driver --- cpu/cc2538/dev/vdd3-sensor.c | 78 ++++++++++++++++++++++++++++++++++++ cpu/cc2538/dev/vdd3-sensor.h | 71 ++++++++++++++++++++++++++++++++ 2 files changed, 149 insertions(+) create mode 100644 cpu/cc2538/dev/vdd3-sensor.c create mode 100644 cpu/cc2538/dev/vdd3-sensor.h diff --git a/cpu/cc2538/dev/vdd3-sensor.c b/cpu/cc2538/dev/vdd3-sensor.c new file mode 100644 index 000000000..678c25b8e --- /dev/null +++ b/cpu/cc2538/dev/vdd3-sensor.c @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2015, Zolertia - http://www.zolertia.com + * Copyright (c) 2015, University of Bristol - http://www.bristol.ac.uk + * 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 copyright holder 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT HOLDER 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. + */ +/*---------------------------------------------------------------------------*/ +/** + * \addtogroup cc2538-vdd3-sensor + * @{ + * + * \file + * Driver for the CC2538 VDD3 sensor + */ +/*---------------------------------------------------------------------------*/ +#include "contiki.h" +#include "lib/sensors.h" +#include "dev/vdd3-sensor.h" +#include "dev/adc.h" +#include "dev/cc2538-sensors.h" + +#include +/*---------------------------------------------------------------------------*/ +static int +value(int type) +{ + int raw = adc_get(SOC_ADC_ADCCON_CH_VDD_3, SOC_ADC_ADCCON_REF_INT, + SOC_ADC_ADCCON_DIV_512); + + if(type == CC2538_SENSORS_VALUE_TYPE_RAW) { + return raw; + } else if(type == CC2538_SENSORS_VALUE_TYPE_CONVERTED) { + return raw * (3 * 1190) / (2047 << 4); + } + + return CC2538_SENSORS_ERROR; +} +/*---------------------------------------------------------------------------*/ +static int +configure(int type, int value) +{ + return 0; +} +/*---------------------------------------------------------------------------*/ +static int +status(int type) +{ + return 1; +} +/*---------------------------------------------------------------------------*/ +SENSORS_SENSOR(vdd3_sensor, VDD3_SENSOR, value, configure, status); +/*---------------------------------------------------------------------------*/ +/** @} */ diff --git a/cpu/cc2538/dev/vdd3-sensor.h b/cpu/cc2538/dev/vdd3-sensor.h new file mode 100644 index 000000000..aa0fcf94c --- /dev/null +++ b/cpu/cc2538/dev/vdd3-sensor.h @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2015, Zolertia - http://www.zolertia.com + * Copyright (c) 2015, University of Bristol - http://www.bristol.ac.uk + * 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 copyright holder 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT HOLDER 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. + */ +/*---------------------------------------------------------------------------*/ +/** + * \addtogroup cc2538-sensors + * @{ + * + * \defgroup cc2538-vdd3-sensor CC2538 VDD3 Sensor + * + * Driver for the CC2538 VDD3 sensor + * + * This driver can return the raw as well as the converted value of the sensor + * reading. This is controlled by the type argument of the sensor driver's + * value() function. The choices for the type argument are: + * - REMOTE_SENSORS_VALUE_TYPE_RAW (value() returns the raw reading) + * - REMOTE_SENSORS_VALUE_TYPE_CONVERTED (value() returns mV) + * @{ + * + * \file + * Header file for the CC2538 VDD3 Sensor Driver + */ +/*---------------------------------------------------------------------------*/ +#ifndef VDD3_SENSOR_H_ +#define VDD3_SENSOR_H_ +/*---------------------------------------------------------------------------*/ +#include "lib/sensors.h" +/*---------------------------------------------------------------------------*/ +/** + * \name VDD3 sensors + * @{ + */ +#define VDD3_SENSOR "VDD3" +/** @} */ +/*---------------------------------------------------------------------------*/ +extern const struct sensors_sensor vdd3_sensor; +/*---------------------------------------------------------------------------*/ +#endif /* VDD3_SENSOR_H_ */ +/*---------------------------------------------------------------------------*/ +/** + * @} + * @} + */