src/main/drivers/camera_control.h

   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 #pragma once
  22
  23 #include "io_types.h"
  24 #include "pg/pg.h"
  25
  26 typedef enum {
  27     CAMERA_CONTROL_KEY_ENTER,
  28     CAMERA_CONTROL_KEY_LEFT,
  29     CAMERA_CONTROL_KEY_UP,
  30     CAMERA_CONTROL_KEY_RIGHT,
  31     CAMERA_CONTROL_KEY_DOWN,
  32     CAMERA_CONTROL_KEYS_COUNT
  33 } cameraControlKey_e;
  34
  35 typedef enum {
  36     CAMERA_CONTROL_MODE_HARDWARE_PWM,
  37     CAMERA_CONTROL_MODE_SOFTWARE_PWM,
  38     CAMERA_CONTROL_MODE_DAC,
  39     CAMERA_CONTROL_MODES_COUNT
  40 } cameraControlMode_e;
  41
  42 typedef struct cameraControlConfig_s {
  43     cameraControlMode_e mode;
  44     // measured in 10 mV steps
  45     uint16_t refVoltage;
  46     uint16_t keyDelayMs;
  47     // measured 100 Ohm steps
  48     uint16_t internalResistance;
  49
  50     ioTag_t ioTag;
  51     uint8_t inverted;
  52     uint16_t buttonResistanceValues[CAMERA_CONTROL_KEYS_COUNT]; // resistance in 100ohm steps
  53 } cameraControlConfig_t;
  54
  55 PG_DECLARE(cameraControlConfig_t, cameraControlConfig);
  56
  57 void cameraControlInit(void);
  58
  59 void cameraControlProcess(uint32_t currentTimeUs);
  60 void cameraControlKeyPress(cameraControlKey_e key, uint32_t holdDurationMs);