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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/802_15_4/api/MAC/mac_mcps_purge.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/802_15_4/api/MAC/mac_mcps_purge.h
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+/**
+ * Copyright (c) 2016 - 2018 Nordic Semiconductor ASA and Luxoft Global Operations Gmbh.
+ * 
+ * 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.
+ * 
+ */
+#ifndef MAC_MCPS_PURGE_H_INCLUDED
+#define MAC_MCPS_PURGE_H_INCLUDED
+
+#if (CONFIG_PURGE_ENABLED == 1)
+
+#include <stdint.h>
+#include "mac_common.h"
+#include "mac_task_scheduler.h"
+
+/** @file
+ * The MAC Purge module declares the MAC Purge routines and necessary types
+ * according to the MAC specification.
+ *
+ * @defgroup mac_purge MAC MCPS Purge API
+ * @ingroup mac_15_4
+ * @{
+ * @brief Module to declare MAC MCPS Purge API.
+ * @details The MAC MCPS Purge module declares the MAC Purge routines and necessary types according to
+ * the MAC specification. More specifically, MAC purge request mcps_purge_req(), and the
+ * confirmation callback typedef is declared as mcps_purge_conf_cb_t. An additional primitive
+ * not covered by the standard is declared. This is mpcs_purge() which is a synchronous version
+ * of mcps_purge_req().
+ */
+
+/**
+ * @brief   MCPS-PURGE.confirm.
+ *
+ * @details The MCPS-PURGE.confirm primitive allows the MAC sublayer to notify the next higher layer
+ * of the success of its request to purge an MSDU from the transaction queue.
+ *
+ * In accordance with IEEE Std 802.15.4-2006, section 7.1.1.5.
+ */
+typedef struct
+{
+    /** The handle of the MSDU to be purged from the transaction queue. */
+    uint8_t        msdu_handle;
+
+    /** The status of the request to be purged an MSDU from the transaction queue. */
+    mac_status_t   status;
+} mcps_purge_conf_t;
+
+
+/**
+ * @brief   MCPS-PURGE.request.
+ *
+ * @details The MCPS-PURGE.request primitive allows the next higher layer
+ * to purge an MSDU from the transaction queue.
+ *
+ * In accordance with IEEE Std 802.15.4-2006, section 7.1.1.4.
+ */
+typedef struct
+{
+    /** Do not edit this field. */
+    mac_abstract_req_t  service;
+
+    /** Confirmation to this request. */
+    mcps_purge_conf_t   confirm;
+
+    /** The handle of the MSDU to be purged from the transaction queue. */
+    uint8_t       msdu_handle;
+} mcps_purge_req_t;
+
+
+/**
+ * @brief   Confirmation function.
+ *
+ * @details The MCPS-PURGE.confirm primitive is generated by the MAC sublayer
+ * entity in response to an MCPS-PURGE.request primitive. The MCPS-PURGE.confirm
+ * primitive returns a status of either SUCCESS, indicating that the purge request
+ * was successful, or INVALID_HANDLE, indicating an error.
+ * The status values are fully described in 7.1.1.4.3.
+ *
+ * @param Pointer to confirmation primitive.
+ */
+typedef void (* mcps_purge_conf_cb_t)(mcps_purge_conf_t *);
+
+
+/**
+ * @brief   MCPS-PURGE.request service.
+ *
+ * @details The MCPS-PURGE.request primitive is generated by the next higher layer
+ * whenever an MSDU is to be purged from the transaction queue.
+ * After request completion, user callback will be issued with
+ * valid data stored in structure mcps_purge_conf_t.
+ *
+ * @param req     Pointer to MCPS-PURGE request structure.
+ * @param conf_cb Pointer to the confirmation function (user callback).
+ *
+ * In accordance with IEEE Std 802.15.4-2006, section 7.1.1.4.
+ */
+void mcps_purge_req(mcps_purge_req_t * req, mcps_purge_conf_cb_t conf_cb);
+
+/**
+ * @brief   Performs MCPS-PURGE.request directly (without request - confirm approach).
+ *
+ * @details Optional. Not covered by the standard.
+ *
+ * The MCPS-PURGE.request primitive is generated by the next higher layer
+ * whenever an MSDU is to be purged from the transaction queue.
+ *
+ * @param req Pointer to MCPS-PURGE request structure.
+ *
+ * @return Result of the purge procedure.
+ */
+mac_status_t mcps_purge(mcps_purge_req_t * req);
+
+/** @} */
+
+#endif // (CONFIG_PURGE_ENABLED == 1)
+
+#endif // MAC_MCPS_PURGE_H_INCLUDED