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- /**
- * Copyright (c) 2015 - 2020, 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.
- *
- */
- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(NFC_NDEF_MSG)
- #include "app_util.h"
- #include "nfc_ndef_msg.h"
- #include "nordic_common.h"
- #include "nrf.h"
- /**
- * @brief Resolve the value of record location flags of the NFC NDEF record within an NFC NDEF message.
- */
- __STATIC_INLINE nfc_ndef_record_location_t record_location_get(uint32_t index,
- uint32_t record_count)
- {
- nfc_ndef_record_location_t record_location;
- if (index == 0)
- {
- if (record_count == 1)
- {
- record_location = NDEF_LONE_RECORD;
- }
- else
- {
- record_location = NDEF_FIRST_RECORD;
- }
- }
- else if (record_count == index + 1)
- {
- record_location = NDEF_LAST_RECORD;
- }
- else
- {
- record_location = NDEF_MIDDLE_RECORD;
- }
- return record_location;
- }
- 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)
- {
- nfc_ndef_record_location_t record_location;
- uint32_t temp_len;
- uint32_t i;
- uint32_t err_code;
- uint32_t sum_of_len = 0;
- if ((p_ndef_msg_desc == NULL) || p_msg_len == NULL)
- {
- return NRF_ERROR_NULL;
- }
- nfc_ndef_record_desc_t * * pp_record_rec_desc = p_ndef_msg_desc->pp_record;
- if (p_ndef_msg_desc->pp_record == NULL)
- {
- return NRF_ERROR_NULL;
- }
- #if NFC_NDEF_MSG_TAG_TYPE == TYPE_4_TAG
- uint8_t * p_root_msg_buffer = p_msg_buffer;
- if (p_msg_buffer != NULL)
- {
- if (*p_msg_len < NLEN_FIELD_SIZE)
- {
- return NRF_ERROR_NO_MEM;
- }
- p_msg_buffer += NLEN_FIELD_SIZE;
- }
- sum_of_len += NLEN_FIELD_SIZE;
- #endif
- for (i = 0; i < p_ndef_msg_desc->record_count; i++)
- {
- record_location = record_location_get(i, p_ndef_msg_desc->record_count);
- temp_len = *p_msg_len - sum_of_len;
- err_code = nfc_ndef_record_encode(*pp_record_rec_desc,
- record_location,
- p_msg_buffer,
- &temp_len);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- sum_of_len += temp_len;
- if (p_msg_buffer != NULL)
- {
- p_msg_buffer += temp_len;
- }
- /* next record */
- pp_record_rec_desc++;
- }
- #if NFC_NDEF_MSG_TAG_TYPE == TYPE_4_TAG
- if (p_msg_buffer != NULL)
- {
- if (sum_of_len - NLEN_FIELD_SIZE > UINT16_MAX)
- {
- return NRF_ERROR_NOT_SUPPORTED;
- }
- UNUSED_RETURN_VALUE(uint16_big_encode(sum_of_len - NLEN_FIELD_SIZE, p_root_msg_buffer));
- }
- #endif
- *p_msg_len = sum_of_len;
- return NRF_SUCCESS;
- }
- void nfc_ndef_msg_clear(nfc_ndef_msg_desc_t * p_msg)
- {
- p_msg->record_count = 0;
- }
- ret_code_t nfc_ndef_msg_record_add(nfc_ndef_msg_desc_t * const p_msg,
- nfc_ndef_record_desc_t * const p_record)
- {
- if (p_msg->record_count >= p_msg->max_record_count)
- {
- return NRF_ERROR_NO_MEM;
- }
- p_msg->pp_record[p_msg->record_count] = p_record;
- p_msg->record_count++;
- return NRF_SUCCESS;
- }
- #endif // NRF_MODULE_ENABLED(NFC_NDEF_MSG)
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