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116 lines
3.0 KiB
C
116 lines
3.0 KiB
C
/*
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* Copyright (C) 2015 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup driver_sensif
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* @{
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*
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* @file
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* @brief Generic sensor/actuator data handling
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include "fmt.h"
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#include "phydat.h"
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void phydat_dump(phydat_t *data, uint8_t dim)
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{
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if (data == NULL || dim > PHYDAT_DIM) {
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puts("Unable to display data object");
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return;
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}
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printf("Data:");
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for (uint8_t i = 0; i < dim; i++) {
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char scale_prefix;
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switch (data->unit) {
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case UNIT_UNDEF:
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case UNIT_NONE:
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case UNIT_M2:
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case UNIT_M3:
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case UNIT_PERCENT:
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case UNIT_TEMP_C:
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case UNIT_TEMP_F:
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/* no string conversion */
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scale_prefix = '\0';
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break;
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default:
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scale_prefix = phydat_prefix_from_scale(data->scale);
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}
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printf("\t[%i] ", (int)i);
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if (scale_prefix) {
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printf("%i %c", (int)data->val[i], scale_prefix);
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}
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else if (data->scale == 0) {
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printf("%i", (int)data->val[i]);
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}
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else if ((data->scale > -5) && (data->scale < 0)) {
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char num[8];
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size_t len = fmt_s16_dfp(num, data->val[i], data->scale * -1);
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num[len] = '\0';
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printf("%s", num);
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}
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else {
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printf("%iE%i", (int)data->val[i], (int)data->scale);
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}
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printf("%s\n", phydat_unit_to_str(data->unit));
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}
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}
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const char *phydat_unit_to_str(uint8_t unit)
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{
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switch (unit) {
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case UNIT_TEMP_C: return "°C";
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case UNIT_TEMP_F: return "°F";
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case UNIT_TEMP_K: return "K";
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case UNIT_LUX: return "lx";
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case UNIT_M: return "m";
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case UNIT_M2: return "m^2";
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case UNIT_M3: return "m^3";
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case UNIT_G: return "g";
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case UNIT_DPS: return "dps";
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case UNIT_GR: return "G";
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case UNIT_A: return "A";
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case UNIT_V: return "V";
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case UNIT_GS: return "Gs";
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case UNIT_BAR: return "Bar";
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case UNIT_PA: return "Pa";
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case UNIT_PPM: return "ppm";
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case UNIT_CD: return "cd";
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case UNIT_PERCENT: return "%";
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default: return "";
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}
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}
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char phydat_prefix_from_scale(int8_t scale)
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{
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switch (scale) {
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case -3: return 'm';
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case -6: return 'u';
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case -9: return 'n';
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case -12: return 'p';
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case -15: return 'f';
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case 2: return 'h';
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case 3: return 'k';
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case 6: return 'M';
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case 9: return 'G';
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case 12: return 'T';
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case 15: return 'P';
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default: return '\0';
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}
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}
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