Contiki-NG
vdd3-sensor.c
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1 /*
2  * Copyright (c) 2015, Zolertia - http://www.zolertia.com
3  * Copyright (c) 2015, University of Bristol - http://www.bristol.ac.uk
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  *
15  * 3. Neither the name of the copyright holder nor the names of its
16  * contributors may be used to endorse or promote products derived
17  * from this software without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
25  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
28  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
30  * OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 /*---------------------------------------------------------------------------*/
33 /**
34  * \addtogroup cc2538-vdd3-sensor
35  * @{
36  *
37  * \file
38  * Driver for the CC2538 VDD3 sensor
39  */
40 /*---------------------------------------------------------------------------*/
41 #include "contiki.h"
42 #include "lib/sensors.h"
43 #include "dev/vdd3-sensor.h"
44 #include "dev/adc.h"
45 #include "dev/cc2538-sensors.h"
46 
47 #include <stdint.h>
48 /*---------------------------------------------------------------------------*/
49 static int
50 value(int type)
51 {
54 
55  if(type == CC2538_SENSORS_VALUE_TYPE_RAW) {
56  return raw;
57  } else if(type == CC2538_SENSORS_VALUE_TYPE_CONVERTED) {
58  return raw * (3 * 1190) / (2047 << 4);
59  }
60 
61  return CC2538_SENSORS_ERROR;
62 }
63 /*---------------------------------------------------------------------------*/
64 static int
65 configure(int type, int value)
66 {
67  return 0;
68 }
69 /*---------------------------------------------------------------------------*/
70 static int
71 status(int type)
72 {
73  return 1;
74 }
75 /*---------------------------------------------------------------------------*/
76 SENSORS_SENSOR(vdd3_sensor, VDD3_SENSOR, value, configure, status);
77 /*---------------------------------------------------------------------------*/
78 /** @} */
const struct sensors_sensor vdd3_sensor
Exports global symbols for the sensor API.
Definition: zoul-sensors.c:50
#define CC2538_SENSORS_VALUE_TYPE_CONVERTED
Request the converted reading.
#define SOC_ADC_ADCCON_DIV_512
512 decimation rate (12 bits ENOB)
Definition: soc-adc.h:96
#define CC2538_SENSORS_ERROR
Generic Error.
Generic header usable by all CC2538 sensor drivers.
#define CC2538_SENSORS_VALUE_TYPE_RAW
Request the raw reading.
Header file for the cc2538 ADC driver.
#define SOC_ADC_ADCCON_CH_VDD_3
VDD/3.
Definition: soc-adc.h:111
#define SOC_ADC_ADCCON_REF_INT
Internal reference.
Definition: soc-adc.h:89
Header file for the CC2538 VDD3 Sensor Driver.
int16_t adc_get(uint8_t channel, uint8_t ref, uint8_t div)
Performs a single conversion on a given ADC channel.
Definition: adc.c:57