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103
COMPONENTS/nfc/ndef/connection_handover/hs_rec/nfc_hs_rec.c
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103
COMPONENTS/nfc/ndef/connection_handover/hs_rec/nfc_hs_rec.c
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/**
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* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "nfc_hs_rec.h"
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#include "nfc_ac_rec.h"
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#include "nrf_error.h"
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#define HS_REC_VERSION_SIZE 1
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const uint8_t nfc_hs_rec_type_field[] = {'H', 's'}; ///< Handover Select record type.
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ret_code_t nfc_hs_rec_payload_constructor(nfc_hs_rec_payload_desc_t * p_nfc_hs_rec_payload_desc,
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uint8_t * p_buff,
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uint32_t * p_len)
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{
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ret_code_t err_code = NRF_SUCCESS;
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if (p_buff != NULL)
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{
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// There must be at least 1 free byte in buffer for version byte.
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if (*p_len < HS_REC_VERSION_SIZE)
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{
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return NRF_ERROR_NO_MEM;
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}
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// Major/minor version byte.
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*p_buff = ( (p_nfc_hs_rec_payload_desc->major_version << 4) & 0xF0) |
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( p_nfc_hs_rec_payload_desc->minor_version & 0x0F);
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p_buff += HS_REC_VERSION_SIZE;
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// Decrement remaining buffer size.
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*p_len -= HS_REC_VERSION_SIZE;
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}
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// Encode local records encapsulated in a message.
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err_code = nfc_ndef_msg_encode(p_nfc_hs_rec_payload_desc->p_local_records, p_buff, p_len);
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if (err_code!= NRF_SUCCESS)
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{
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return err_code;
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}
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// Add version byte to the total record size.
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*p_len += HS_REC_VERSION_SIZE;
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return NRF_SUCCESS;
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}
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void nfc_hs_rec_local_record_clear(nfc_ndef_record_desc_t * p_hs_rec)
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{
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nfc_hs_rec_payload_desc_t* p_hs_payload =
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(nfc_hs_rec_payload_desc_t*)p_hs_rec->p_payload_descriptor;
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nfc_ndef_msg_clear(p_hs_payload->p_local_records);
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}
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ret_code_t nfc_hs_rec_local_record_add(nfc_ndef_record_desc_t * p_hs_rec,
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nfc_ndef_record_desc_t * p_local_rec)
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{
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nfc_hs_rec_payload_desc_t* p_hs_payload =
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(nfc_hs_rec_payload_desc_t*)p_hs_rec->p_payload_descriptor;
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return nfc_ndef_msg_record_add(p_hs_payload->p_local_records, p_local_rec);
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}
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162
COMPONENTS/nfc/ndef/connection_handover/hs_rec/nfc_hs_rec.h
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162
COMPONENTS/nfc/ndef/connection_handover/hs_rec/nfc_hs_rec.h
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@@ -0,0 +1,162 @@
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/**
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* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
|
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
|
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* such product, must reproduce the above copyright notice, this list of
|
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef NFC_HS_REC_H__
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#define NFC_HS_REC_H__
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/**@file
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*
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* @defgroup nfc_hs_rec Hs (Handover Select) records
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* @{
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* @ingroup nfc_ble_pair_msg
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*
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* @brief Generation of NFC NDEF Handover Select records for NDEF messages.
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*
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*/
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#include <stdint.h>
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#include "nfc_ndef_record.h"
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#include "nfc_ndef_msg.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Handover Select record payload descriptor.
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*/
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typedef struct
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{
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uint8_t major_version; ///< Major version number of the supported Connection Handover specification.
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uint8_t minor_version; ///< Minor version number of the supported Connection Handover specification.
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nfc_ndef_msg_desc_t * p_local_records; ///< Pointer to a message encapsulating local records.
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} nfc_hs_rec_payload_desc_t;
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/**
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* @brief Constructor for an NFC NDEF Handover Select record payload.
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*
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* This function encodes the payload of a Handover Select record as specified in the Connection
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* Handover standard. It implements an API compatible with @ref p_payload_constructor_t.
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*/
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ret_code_t nfc_hs_rec_payload_constructor(nfc_hs_rec_payload_desc_t * p_nfc_hs_rec_payload_desc,
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uint8_t * p_buff,
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uint32_t * p_len);
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/**
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* @brief An external reference to the type field of the Handover Select record, defined in the
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* file @c nfc_hs_rec.c. It is used in the @ref NFC_NDEF_HS_RECORD_DESC_DEF macro.
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*/
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extern const uint8_t nfc_hs_rec_type_field[];
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/**
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* @brief Size of the type field of the Handover Select record, defined in the
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* file @c nfc_hs_rec.c. It is used in the @ref NFC_NDEF_HS_RECORD_DESC_DEF macro.
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*/
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#define NFC_HS_REC_TYPE_LENGTH 2
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/**
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* @brief Macro for creating and initializing an NFC NDEF record descriptor for a Handover Select record.
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*
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* This macro creates and initializes a static instance of type @ref nfc_ndef_record_desc_t and
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* a static instance of type @ref nfc_hs_rec_payload_desc_t, which together constitute an instance of a Handover Select record.
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*
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* Use the macro @ref NFC_NDEF_HS_RECORD_DESC to access the NDEF Handover Select record descriptor instance.
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*
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* @param[in] NAME Name of the created record descriptor instance.
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* @param[in] MAJOR_VERSION Major version number of the supported Connection Handover specification.
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* @param[in] MINOR_VERSION Minor version number of the supported Connection Handover specification.
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* @param[in] MAX_RECORDS Maximum number of local records (ac records plus optional err record).
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*/
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#define NFC_NDEF_HS_RECORD_DESC_DEF(NAME, \
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MAJOR_VERSION, \
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MINOR_VERSION, \
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MAX_RECORDS) \
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NFC_NDEF_MSG_DEF(NAME, MAX_RECORDS); \
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static nfc_hs_rec_payload_desc_t NAME##_nfc_hs_rec_payload_desc = \
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{ \
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.major_version = MAJOR_VERSION, \
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.minor_version = MINOR_VERSION, \
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.p_local_records = &NFC_NDEF_MSG(NAME) \
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}; \
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NFC_NDEF_GENERIC_RECORD_DESC_DEF(NAME, \
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TNF_WELL_KNOWN, \
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0, \
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0, \
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nfc_hs_rec_type_field , \
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NFC_HS_REC_TYPE_LENGTH, \
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nfc_hs_rec_payload_constructor, \
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&(NAME##_nfc_hs_rec_payload_desc))
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/**
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* @brief Macro for accessing the NFC NDEF Handover Select record descriptor
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* instance that was created with @ref NFC_NDEF_HS_RECORD_DESC_DEF.
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*/
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#define NFC_NDEF_HS_RECORD_DESC(NAME) NFC_NDEF_GENERIC_RECORD_DESC(NAME)
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/**
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* @brief Function for clearing local records in the NFC NDEF Handover Select record.
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*
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* This function clears local records from the Handover Select record.
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*
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* @param[in, out] p_hs_rec Pointer to the Handover Select record descriptor.
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*/
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void nfc_hs_rec_local_record_clear(nfc_ndef_record_desc_t * p_hs_rec);
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/**
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* @brief Function for adding a local record to an NFC NDEF Handover Select record.
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*
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* @param[in, out] p_hs_rec Pointer to a Handover Select record.
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* @param[in] p_local_rec Pointer to a local record to add.
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*
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* @retval NRF_SUCCESS If the local record was added successfully.
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* @retval NRF_ERROR_NO_MEM If the Handover Select record already contains the maximum number of local records.
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*/
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ret_code_t nfc_hs_rec_local_record_add(nfc_ndef_record_desc_t * p_hs_rec,
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nfc_ndef_record_desc_t * p_local_rec);
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif // NFC_HS_REC_H__
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