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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.h')
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.h new file mode 100644 index 0000000..d748d2a --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.h @@ -0,0 +1,199 @@ +/** + * 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_AC_REC_H__ +#define NFC_AC_REC_H__ + +/**@file + * + * @defgroup nfc_ac_rec ac (Alternative carrier) records + * @{ + * @ingroup nfc_ble_pair_msg + * + * @brief Generation of NFC NDEF Alternative Carrier records for NDEF messages. + * + */ + +#include <stdint.h> +#include "nfc_ndef_record.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define AC_REC_CPS_BYTE_SIZE 1 ///< Size of the field with CPS data. +#define AC_REC_DATA_REF_LEN_SIZE 1 ///< Size of the Data Reference Length field. +#define AC_REC_AUX_DATA_REF_COUNT_SIZE 1 ///< Size of the Data Reference Length field. + +/** + * @brief Carrier Power State. + * + * Possible Carrier Power State field values in an Alternative Carrier record. + */ +typedef enum +{ + NFC_AC_CPS_INACTIVE = 0x00, ///< Alternative Carrier inactive. + NFC_AC_CPS_ACTIVE = 0x01, ///< Alternative Carrier active. + NFC_AC_CPS_ACTIVATING = 0x02, ///< Alternative Carrier activating. + NFC_AC_CPS_UNKNOWN = 0x03 ///< Alternative Carrier power status unknown. +} nfc_ac_rec_cps_t; + +#define NFC_AC_CPS_MASK (NFC_AC_CPS_UNKNOWN) ///< Mask of Carrier Power State bits in a first ac record byte. + +/** + * @brief Carrier Data Reference and Auxiliary Data Reference descriptor. + */ +typedef struct +{ + uint8_t length; ///< Length of the data field. + uint8_t * p_data; ///< Pointer to the Data Reference characters. Not relevant if length is 0. +} nfc_ac_rec_data_ref_t; + +/** + * @brief Alternative Carrier record payload descriptor. + */ +typedef struct +{ + nfc_ac_rec_cps_t cps; ///< Carrier Power State value. + nfc_ac_rec_data_ref_t carrier_data_ref; ///< Carrier Data Reference. + uint8_t const max_aux_data_ref; ///< Maximum number of Auxiliary Data Reference fields. + uint8_t aux_data_ref_count; ///< Number of Auxiliary Data Reference fields. + nfc_ac_rec_data_ref_t * p_aux_data_ref; ///< Pointer to the Auxiliary Data Reference fields. +} nfc_ac_rec_payload_desc_t; + + +/** + * @brief Constructor for an NFC NDEF Alternative Carrier record payload. + * + * This function encodes the payload of an Alternative Carrier record as specified in the Connection + * Handover standard. It implements an API compatible with @ref p_payload_constructor_t. + */ +ret_code_t nfc_ac_rec_payload_constructor(nfc_ac_rec_payload_desc_t * p_nfc_rec_ac_payload_desc, + uint8_t * p_buff, + uint32_t * p_len); + +/** + * @brief External reference to the type field of the Alternative Carrier record, defined in the + * file @c nfc_ac_rec.c. It is used in the @ref NFC_NDEF_AC_RECORD_DESC_DEF macro. + */ +extern const uint8_t nfc_ac_rec_type_field[2]; + +/** + * @brief Size of the type field of the Alternative Carrier record, defined in the + * file @c nfc_ac_rec.c. It is used in the @ref NFC_NDEF_AC_RECORD_DESC_DEF macro. + */ +#define NFC_AC_REC_TYPE_LENGTH 2 + +/** + *@brief Macro for creating and initializing an NFC NDEF record descriptor for an Alternative Carrier record. + * + * This macro creates and initializes an instance of type @ref nfc_ndef_record_desc_t and + * an instance of type @ref nfc_ac_rec_payload_desc_t, which together constitute an instance of an Alternative Carrier record. + * + * Use the macro @ref NFC_NDEF_AC_RECORD_DESC to access the NDEF Alternative Carrier record descriptor instance. + * + * @note The record descriptor is declared as automatic variable, which implies that + * the NDEF message encoding (see @ref nfc_ble_full_handover_select_msg_encode) + * must be done in the same variable scope. + * + * @param[in] NAME Name of the created record descriptor instance. + * @param[in] CPS Carrier Power State value. + * @param[in] CARR_DATA_REF_LEN Length of the Carrier Data Reference field. + * @param[in] P_CARR_DATA_REF Pointer to the Carrier Data Reference field. + * @param[in] MAX_AUX_DATA_REF Maximum number of Auxiliary Data Reference fields. + */ +#define NFC_NDEF_AC_RECORD_DESC_DEF(NAME, \ + CPS, \ + CARR_DATA_REF_LEN, \ + P_CARR_DATA_REF, \ + MAX_AUX_DATA_REF) \ + nfc_ac_rec_data_ref_t NAME##_nfc_ac_rec_aux_data_ref_array[MAX_AUX_DATA_REF]; \ + nfc_ac_rec_payload_desc_t NAME##_nfc_ac_rec_payload_desc = \ + { \ + .cps = CPS, \ + .carrier_data_ref = {CARR_DATA_REF_LEN, P_CARR_DATA_REF}, \ + .max_aux_data_ref = MAX_AUX_DATA_REF, \ + .aux_data_ref_count = 0, \ + .p_aux_data_ref = NAME##_nfc_ac_rec_aux_data_ref_array \ + }; \ + NFC_NDEF_GENERIC_RECORD_DESC_DEF(NAME, \ + TNF_WELL_KNOWN, \ + 0, \ + 0, \ + nfc_ac_rec_type_field, \ + NFC_AC_REC_TYPE_LENGTH, \ + nfc_ac_rec_payload_constructor, \ + &(NAME##_nfc_ac_rec_payload_desc)) + +/** + * @brief Macro for accessing the NFC NDEF Alternative Carrier record descriptor + * instance that was created with @ref NFC_NDEF_AC_RECORD_DESC_DEF. + */ +#define NFC_NDEF_AC_RECORD_DESC(NAME) NFC_NDEF_GENERIC_RECORD_DESC(NAME) + +/** + * @brief Function for clearing an Auxiliary Data Reference in an NFC NDEF Alternative Carrier record. + * + * This function clears the Auxiliary Data References from the Alternative Carrier record. + * + * @param[in, out] p_ac_rec Pointer to the Alternative Carrier record descriptor. + */ +void nfc_ac_rec_auxiliary_data_ref_clear(nfc_ndef_record_desc_t * p_ac_rec); + +/** + * @brief Function for adding an Auxiliary Data Reference to an NFC NDEF Alternative Carrier record. + * + * @param[in, out] p_ac_rec Pointer to an ac record. + * @param[in] p_aux_data Pointer to the Auxiliary Data Reference data buffer. + * @param[in] aux_length Length of the Auxiliary Data Reference data. + * + * @retval NRF_SUCCESS If the Auxiliary Data Reference was added successfully. + * @retval NRF_ERROR_NO_MEM If the record already contains the maximum number of Auxiliary Data References. + */ +ret_code_t nfc_ac_rec_auxiliary_data_ref_add(nfc_ndef_record_desc_t * p_ac_rec, + uint8_t * p_aux_data, + uint8_t aux_length); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif // NFC_AC_REC_H__ |