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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_transport.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_transport.h
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+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/bootloader/dfu/nrf_dfu_transport.h
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+/**
+ * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    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
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    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.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+/**@file
+ *
+ * @defgroup sdk_nrf_dfu_transport DFU transport
+ * @{
+ * @ingroup  nrf_dfu
+ * @brief Generic Device Firmware Update (DFU) transport interface.
+ *
+ * @details The DFU transport module defines a generic interface that must
+ *          be implemented for each transport layer.
+ */
+
+#ifndef NRF_DFU_TRANSPORT_H__
+#define NRF_DFU_TRANSPORT_H__
+
+#include <stdint.h>
+#include "nrf_section.h"
+#include "nrf_dfu_types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @brief Forward declaration of nrf_dfu_transport_t */
+typedef struct nrf_dfu_transport_s nrf_dfu_transport_t;
+
+/** @brief  Function type for initializing a DFU transport.
+ *
+ * @details This function initializes a DFU transport. The implementation
+ *          of the function must initialize DFU mode and stay in service
+ *          until either the device is reset or the DFU operation is finalized.
+ *          When the DFU transport receives requests, it should call @ref nrf_dfu_req_handler_on_req for handling the requests.
+ *
+ * @param observer          Function for receiving DFU transport notifications.
+ *
+ * @retval  NRF_SUCCESS     If initialization was successful for the transport. Any other return code indicates that the DFU transport could not be initialized.
+ */
+typedef uint32_t (*nrf_dfu_init_fn_t)(nrf_dfu_observer_t observer);
+
+
+/** @brief  Function type for closing down a DFU transport.
+ *
+ * @details This function closes down a DFU transport in a gentle way.
+ *
+ * @param[in] p_exception    If exception matches current transport closing should be omitted.
+ *
+ * @retval    NRF_SUCCESS    If closing was successful for the transport. Any other return code indicates that the DFU transport could not be closed closed down.
+ */
+typedef uint32_t (*nrf_dfu_close_fn_t)(nrf_dfu_transport_t const * p_exception);
+
+
+
+/** @brief DFU transport registration.
+ *
+ * @details     Every DFU transport must provide a registration of the initialization function.
+ */
+struct nrf_dfu_transport_s
+{
+    nrf_dfu_init_fn_t              init_func;          /**< Registration of the init function to run to initialize a DFU transport. */
+    nrf_dfu_close_fn_t             close_func;         /**< Registration of the close function to close down a DFU transport. */
+};
+
+
+/** @brief Function for initializing all the registered DFU transports.
+ *
+ * @retval  NRF_SUCCESS     If all DFU transport were initialized successfully.
+ *                          Any other error code indicates that at least one DFU
+ *                          transport could not be initialized.
+ */
+uint32_t nrf_dfu_transports_init(nrf_dfu_observer_t observer);
+
+/** @brief Function for closing down all (with optional exception) the registered DFU transports.
+ *
+ * @param[in] p_exception   Transport which should not be closed. NULL if all transports should be closed.
+ * @retval    NRF_SUCCESS   If all DFU transport were closed down successfully.
+ *                          Any other error code indicates that at least one DFU
+ *                          transport could not be closed down.
+ */
+uint32_t nrf_dfu_transports_close(nrf_dfu_transport_t const * p_exception);
+
+
+/** @brief  Macro for registering a DFU transport by using section variables.
+ *
+ * @details     This macro places a variable in a section named "dfu_trans", which
+ *              is initialized by @ref nrf_dfu_transports_init.
+ */
+#define DFU_TRANSPORT_REGISTER(trans_var) NRF_SECTION_ITEM_REGISTER(dfu_trans, trans_var)
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_DFU_TRANSPORT_H__
+
+/** @} */