dji_power_management.h
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/**
********************************************************************
* @file dji_power_management.h
* @brief This is the header file for "dji_power_management.c", defining the structure and
* (exported) function prototypes.
*
* @copyright (c) 2021 DJI. All rights reserved.
*
* All information contained herein is, and remains, the property of DJI.
* The intellectual and technical concepts contained herein are proprietary
* to DJI and may be covered by U.S. and foreign patents, patents in process,
* and protected by trade secret or copyright law. Dissemination of this
* information, including but not limited to data and other proprietary
* material(s) incorporated within the information, in any form, is strictly
* prohibited without the express written consent of DJI.
*
* If you receive this source code without DJI’s authorization, you may not
* further disseminate the information, and you must immediately remove the
* source code and notify DJI of its removal. DJI reserves the right to pursue
* legal actions against you for any loss(es) or damage(s) caused by your
* failure to do so.
*
*********************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef DJI_POWER_MANAGEMENT_H
#define DJI_POWER_MANAGEMENT_H
/* Includes ------------------------------------------------------------------*/
#include "dji_typedef.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Exported constants --------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief Pin state.
*/
typedef enum {
DJI_POWER_MANAGEMENT_PIN_STATE_RESET = 0, /*!< Specifies pin is in low level state. */
DJI_POWER_MANAGEMENT_PIN_STATE_SET = 1, /*!< Specifies pin is in high level state. */
} E_DjiPowerManagementPinState;
/**
* @brief Prototype of callback function used to set level of high power application pin.
* @param pinState: level state of pin to be set.
* @return Execution result.
*/
typedef T_DjiReturnCode (*DjiWriteHighPowerApplyPinCallback)(E_DjiPowerManagementPinState pinState);
/**
* @brief Prototype of callback function used to notify payload that the aircraft will power off soon and get state
* whether the payload is ready to power off or not.
* @warning User can not execute blocking style operations or functions in a callback function, because that will block DJI
* root thread, causing problems such as slow system response, payload disconnection or infinite loop.
* @param powerOffPreparationFlag: pointer to memory space used to store power off preparation flag. True represents
* that payload has completed all work and is ready to power off. False represents that payload is not ready to power
* off.
* @return Execution result.
*/
typedef T_DjiReturnCode (*DjiPowerOffNotificationCallback)(bool *powerOffPreparationFlag);
/* Exported functions --------------------------------------------------------*/
/**
* @brief Initialise power management module, and user should call this function before using power management features.
* @return Execution result.
*/
T_DjiReturnCode DjiPowerManagement_Init(void);
/**
* @brief DeInitialise power management module, and user should call this function before using power management features.
* @return Execution result.
*/
T_DjiReturnCode DjiPowerManagement_DeInit(void);
/**
* @brief Apply high power from aircraft in blocking mode.
* @details Before applying, user should register callback function used to set level state of high power application
* pin using DjiPowerManagement_RegWriteHighPowerApplyPinCallback() function. After applying high power, power pin of
* DJI adapter will output high power based predetermined specification.
* @note Max execution time of this function is slightly larger than 600ms.
* @return Execution result.
*/
T_DjiReturnCode DjiPowerManagement_ApplyHighPowerSync(void);
/**
* @brief Register callback function used to set level state of high power application pin. Must be called before
* applying high power.
* @param callback: pointer to the callback function.
* @return Execution result.
*/
T_DjiReturnCode DjiPowerManagement_RegWriteHighPowerApplyPinCallback(DjiWriteHighPowerApplyPinCallback callback);
/**
* @brief Register callback function used to notify payload that the aircraft will power off soon and get state
* whether the payload is ready to power off or not.
* @details After registering, the callback function will be called at a fixed frequency when aircraft will power off.
* User fill in the power off preparation flag, and once the payload is ready to power off, the callback function will not
* be called. After a specified time, if the payload is not ready to power off, the aircraft will power off immediately. The
* specified time is 10s.
* @param callback: pointer to callback function used to notify aircraft power off message and get payload power off
* preparation flag.
* @return Execution result.
*/
T_DjiReturnCode DjiPowerManagement_RegPowerOffNotificationCallback(DjiPowerOffNotificationCallback callback);
#ifdef __cplusplus
}
#endif
#endif // DJI_POWER_MANAGEMENT_H
/************************ (C) COPYRIGHT DJI Innovations *******END OF FILE******/