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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.h')
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.h new file mode 100644 index 0000000..9ca15f3 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.h @@ -0,0 +1,197 @@ +/** + * Copyright (c) 2015 - 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. + * + */ +#ifndef NFC_NDEF_MSG_H__ +#define NFC_NDEF_MSG_H__ + +#include "nfc_ndef_record.h" + +#ifdef __cplusplus +extern "C" { +#endif +/**@file + * + * @defgroup nfc_ndef_msg Custom NDEF messages + * @{ + * @ingroup nfc_modules + * + * @brief Generation of NFC NDEF messages for the NFC tag. + * + */ + +#define TYPE_4_TAG 4U ///< Type 4 Tag identifier. +#define NLEN_FIELD_SIZE 2U ///< Size of NLEN field, used to encode NDEF message for Type 4 Tag. + + /** + * @brief NDEF message descriptor. + */ + typedef struct { + nfc_ndef_record_desc_t ** pp_record; ///< Pointer to an array of pointers to NDEF record descriptors. + uint32_t max_record_count; ///< Number of elements in the allocated pp_record array, which defines the maximum number of records within the NDEF message. + uint32_t record_count; ///< Number of records in the NDEF message. + } nfc_ndef_msg_desc_t; + + /** + * @brief Function for encoding an NDEF message. + * + * This function encodes an NDEF message according to the provided message descriptor. + * + * @note The way of encoding an NDEF message may vary depending on tag's platform, which + * can be chosen with @ref NFC_NDEF_MSG_TAG_TYPE in @c sdk_config.h. + * + * @param[in] p_ndef_msg_desc Pointer to the message descriptor. + * @param[out] p_msg_buffer Pointer to the message destination. If NULL, function will + * calculate the expected size of the message. + * @param[in,out] p_msg_len Size of the available memory for the message as input. Size of + * the generated message as output. + * + * @return Return value from @ref nfc_ndef_record_encode. + */ +ret_code_t nfc_ndef_msg_encode(nfc_ndef_msg_desc_t const * p_ndef_msg_desc, + uint8_t * p_msg_buffer, + uint32_t * const p_msg_len); + +/** + * @brief Function for clearing an NDEF message. + * + * This function clears an NDEF message descriptor, thus empties the NDEF message. + * + * @param[in,out] p_msg Pointer to the message descriptor. + */ +void nfc_ndef_msg_clear( nfc_ndef_msg_desc_t * p_msg); + +/** + * @brief Function for adding a record to an NDEF message. + * + * @param[in] p_record Pointer to the record descriptor. + * @param[in,out] p_msg Pointer to the message descriptor. + * + * @retval NRF_SUCCESS If the record was added successfully. + * @retval NRF_ERROR_NO_MEM If the message already contains the maximum number of records and the operation is not allowed. + */ +ret_code_t nfc_ndef_msg_record_add(nfc_ndef_msg_desc_t * const p_msg, + nfc_ndef_record_desc_t * const p_record); + + +/**@brief Macro for creating and initializing an NFC NDEF message descriptor. + * + * This macro creates and initializes an instance of type @ref nfc_ndef_msg_desc_t + * and an array of pointers to record descriptors (@ref nfc_ndef_record_desc_t) used + * by the message. + * + * Use the macro @ref NFC_NDEF_MSG to access the NDEF message descriptor instance. + * + * @note The message descriptor is declared as automatic variable, which implies that + * the NDEF message encoding must be done in the same variable scope. + * + * @param[in] NAME Name of the related instance. + * @param[in] MAX_RECORD_CNT Maximal count of records in the message. + */ +#define NFC_NDEF_MSG_DEF(NAME, MAX_RECORD_CNT) \ + nfc_ndef_record_desc_t * NAME##_nfc_ndef_p_record_desc_array[MAX_RECORD_CNT]; \ + nfc_ndef_msg_desc_t NAME##_nfc_ndef_msg_desc = \ + { \ + .pp_record = NAME##_nfc_ndef_p_record_desc_array, \ + .max_record_count = MAX_RECORD_CNT, \ + .record_count = 0 \ + } + +/** @brief Macro for accessing the NFC NDEF message descriptor instance + * that you created with @ref NFC_NDEF_MSG_DEF. + */ +#define NFC_NDEF_MSG(NAME) (NAME##_nfc_ndef_msg_desc) + +/** + * @brief Macro for creating and initializing an NFC NDEF record descriptor with an encapsulated NDEF message. + + * This macro creates and initializes a static instance of type + * @ref nfc_ndef_record_desc_t that contains an encapsulated NDEF message as + * payload. @ref nfc_ndef_msg_encode is used as payload constructor to encode + * the message. The encoded message is then used as payload for the record. + * + * Use the macro @ref NFC_NDEF_NESTED_NDEF_MSG_RECORD to access the NDEF record descriptor instance. + * + * @note The message descriptor is declared as automatic variable, which implies that + * the NDEF message encoding must be done in the same variable scope. + * + * @param[in] NAME Name of the created record descriptor instance. + * @param[in] TNF Type Name Format (TNF) value for the record. + * @param[in] P_ID Pointer to the ID string. + * @param[in] ID_LEN Length of the ID string. + * @param[in] P_TYPE Pointer to the type string. + * @param[in] TYPE_LEN Length of the type string. + * @param[in] P_NESTED_MESSAGE Pointer to the message descriptor to encapsulate + * as the record's payload. + */ +#define NFC_NDEF_NESTED_NDEF_MSG_RECORD_DEF( NAME, \ + TNF, \ + P_ID, \ + ID_LEN, \ + P_TYPE, \ + TYPE_LEN, \ + P_NESTED_MESSAGE ) \ + nfc_ndef_record_desc_t NAME##_ndef_record_nested_desc = \ + { \ + .tnf = TNF, \ + \ + .id_length = ID_LEN, \ + .p_id = P_ID, \ + \ + .type_length = TYPE_LEN, \ + .p_type = P_TYPE, \ + \ + .payload_constructor = (p_payload_constructor_t)(nfc_ndef_msg_encode), \ + .p_payload_descriptor = (void*) (P_NESTED_MESSAGE) \ + } + +/** @brief Macro for accessing the NFC NDEF record descriptor instance + * that you created with @ref NFC_NDEF_NESTED_NDEF_MSG_RECORD_DEF. + */ +#define NFC_NDEF_NESTED_NDEF_MSG_RECORD(NAME) (NAME##_ndef_record_nested_desc) + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif + |