owner-nrf52sdk/nRF5_SDK_15.2.0/components/libraries/bootloader/nrf_bootloader_fw_activation.h

/**
 * Copyright (c) 2018, Nordic Semiconductor ASA
 *
 * All rights reserved.
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 * are permitted provided that the following conditions are met:
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 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
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 *    materials provided with the distribution.
 *
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
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 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
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 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
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/**@file
 *
 * @defgroup nrf_bootloader_fw_activation Firmware activation
 * @{
 * @ingroup  nrf_bootloader
 */

#ifndef NRF_BOOTLOADER_FW_ACTIVATION_H__
#define NRF_BOOTLOADER_FW_ACTIVATION_H__

#include <stdint.h>
#include <stdbool.h>

#ifdef __cplusplus
extern "C"
{
#endif

typedef enum
{
    ACTIVATION_NONE,                             //!< No new update was found.
    ACTIVATION_SUCCESS,                          //!< Update was successfully activated.
    ACTIVATION_SUCCESS_EXPECT_ADDITIONAL_UPDATE, //!< Update was successfully activated, but there might be additional update(s) to be transferred.
    ACTIVATION_ERROR,                            //!< Activation of an update failed.
} nrf_bootloader_fw_activation_result_t;

/** @brief Function for activating a firmware received during DFU.
 *
 * @details     This function initiates or continues the DFU copy-back
 *              routines. These routines are fail-safe operations to activate
 *              either a new SoftDevice, bootloader, combination of SoftDevice and
 *              bootloader, or a new application.
 *
 * @details     This function relies on accessing MBR commands through supervisor calls.
 *              It does not rely on the SoftDevice for flash operations.
 *
 * @note        When updating the bootloader or both bootloader and SoftDevice in combination,
 *              this function does not return, but rather initiates a reboot to activate
 *              the new bootloader.
 *
 * @retval  ACTIVATION_NONE                              If no update was found.
 * @retval  ACTIVATION_SUCCESS                           If the firmware update was successfully activated.
 * @retval  ACTIVATION_SUCCESS_EXPECT_ADDITIONAL_UPDATE  If the firmware update was successfully activated,
 *                                                       but there are likely more updates to be transferred.
 * @retval  ACTIVATION_ERROR                             If the firmware update could not be activated.
 */
nrf_bootloader_fw_activation_result_t nrf_bootloader_fw_activate(void);



#ifdef __cplusplus
}
#endif

#endif // NRF_BOOTLOADER_FW_ACTIVATION_H__

/** @} */