src/main/drivers/barometer/barometer_virtual.c

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <stdbool.h>
  22 #include <stdint.h>
  23
  24 #include "platform.h"
  25
  26 #ifdef USE_VIRTUAL_BARO
  27
  28 #include "common/utils.h"
  29
  30 #include "barometer.h"
  31 #include "barometer_virtual.h"
  32
  33
  34 static int32_t virtualPressure;
  35 static int32_t virtualTemperature;
  36
  37
  38 static bool virtualBaroStart(baroDev_t *baro)
  39 {
  40     UNUSED(baro);
  41
  42     return true;
  43 }
  44
  45 static bool virtualBaroReadGet(baroDev_t *baro)
  46 {
  47     UNUSED(baro);
  48
  49     return true;
  50 }
  51
  52 static void virtualBaroCalculate(int32_t *pressure, int32_t *temperature)
  53 {
  54     if (pressure)
  55         *pressure = virtualPressure;
  56     if (temperature)
  57         *temperature = virtualTemperature;
  58 }
  59
  60 void virtualBaroSet(int32_t pressure, int32_t temperature)
  61 {
  62     virtualPressure = pressure;
  63     virtualTemperature = temperature;
  64 }
  65
  66 bool virtualBaroDetect(baroDev_t *baro)
  67 {
  68     virtualPressure = 101325;    // pressure in Pa (0m MSL)
  69     virtualTemperature = 2500;   // temperature in 0.01 C = 25 deg
  70
  71     // these are dummy as temperature is measured as part of pressure
  72     baro->combined_read = true;
  73     baro->ut_delay = 10000;
  74     baro->get_ut = virtualBaroReadGet;
  75     baro->read_ut = virtualBaroReadGet;
  76     baro->start_ut = virtualBaroStart;
  77
  78     // only _up part is executed, and gets both temperature and pressure
  79     baro->up_delay = 10000;
  80     baro->start_up = virtualBaroStart;
  81     baro->read_up = virtualBaroReadGet;
  82     baro->get_up = virtualBaroReadGet;
  83     baro->calculate = virtualBaroCalculate;
  84
  85     return true;
  86 }
  87 #endif // USE_VIRTUAL_BARO