src/main/drivers/compass/compass_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_MAG
  27
  28 #include "build/build_config.h"
  29
  30 #include "common/axis.h"
  31 #include "common/utils.h"
  32
  33 #include "compass.h"
  34 #include "compass_virtual.h"
  35
  36 static int16_t virtualMagData[XYZ_AXIS_COUNT];
  37
  38 static bool virtualMagInit(magDev_t *mag)
  39 {
  40     UNUSED(mag);
  41
  42     // initially point north
  43     virtualMagData[X] = 4096;
  44     virtualMagData[Y] = 0;
  45     virtualMagData[Z] = 0;
  46     return true;
  47 }
  48
  49 void virtualMagSet(int16_t x, int16_t y, int16_t z)
  50 {
  51     virtualMagData[X] = x;
  52     virtualMagData[Y] = y;
  53     virtualMagData[Z] = z;
  54 }
  55
  56 static bool virtualMagRead(magDev_t *mag, int16_t *magData)
  57 {
  58     UNUSED(mag);
  59
  60     magData[X] = virtualMagData[X];
  61     magData[Y] = virtualMagData[Y];
  62     magData[Z] = virtualMagData[Z];
  63     return true;
  64 }
  65
  66 bool virtualMagDetect(magDev_t *mag)
  67 {
  68     mag->init = virtualMagInit;
  69     mag->read = virtualMagRead;
  70     return true;
  71 }
  72 #endif // USE_VIRTUAL_MAG
  73