diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.c new file mode 100644 index 0000000..b1796af --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/message/nfc_ndef_msg.c @@ -0,0 +1,183 @@ +/** + * 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. + * + */ +#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) |