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 static int32_t virtualPressure;
  34 static int32_t virtualTemperature;
  35
  36 static bool virtualBaroStart(baroDev_t *baro)
  37 {
  38     UNUSED(baro);
  39
  40     return true;
  41 }
  42
  43 static bool virtualBaroReadGet(baroDev_t *baro)
  44 {
  45     UNUSED(baro);
  46
  47     return true;
  48 }
  49
  50 static void virtualBaroCalculate(int32_t *pressure, int32_t *temperature)
  51 {
  52     if (pressure)
  53         *pressure = virtualPressure;
  54     if (temperature)
  55         *temperature = virtualTemperature;
  56 }
  57
  58 void virtualBaroSet(int32_t pressure, int32_t temperature)
  59 {
  60     virtualPressure = pressure;
  61     virtualTemperature = temperature;
  62 }
  63
  64 bool virtualBaroDetect(baroDev_t *baro)
  65 {
  66     virtualPressure = 101325;    // pressure in Pa (0m MSL)
  67     virtualTemperature = 2500;   // temperature in 0.01 C = 25 deg
  68
  69     // these are dummy as temperature is measured as part of pressure
  70     baro->combined_read = true;
  71     baro->ut_delay = 10000;
  72     baro->get_ut = virtualBaroReadGet;
  73     baro->read_ut = virtualBaroReadGet;
  74     baro->start_ut = virtualBaroStart;
  75
  76     // only _up part is executed, and gets both temperature and pressure
  77     baro->up_delay = 10000;
  78     baro->start_up = virtualBaroStart;
  79     baro->read_up = virtualBaroReadGet;
  80     baro->get_up = virtualBaroReadGet;
  81     baro->calculate = virtualBaroCalculate;
  82
  83     return true;
  84 }
  85 #endif // USE_VIRTUAL_BARO