diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/record/nfc_ndef_record.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/record/nfc_ndef_record.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/record/nfc_ndef_record.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/record/nfc_ndef_record.c new file mode 100644 index 0000000..9397236 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/generic/record/nfc_ndef_record.c @@ -0,0 +1,191 @@ +/** + * 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_config.h" +#include "nordic_common.h" +#if NRF_MODULE_ENABLED(NFC_NDEF_RECORD) + +#include <string.h> +#include "nfc_ndef_record.h" +#include "app_util.h" +#include "nrf.h" + + +/* Sum of sizes of fields: TNF-flags, Type Length, Payload Length in long NDEF record. */ +#define NDEF_RECORD_BASE_LONG_SIZE (2 + NDEF_RECORD_PAYLOAD_LEN_LONG_SIZE) + +__STATIC_INLINE uint32_t record_header_size_calc(nfc_ndef_record_desc_t const * p_ndef_record_desc) +{ + uint32_t len = NDEF_RECORD_BASE_LONG_SIZE; + + len += p_ndef_record_desc->id_length + p_ndef_record_desc->type_length; + + if (p_ndef_record_desc->id_length > 0) + { + len++; + } + + return len; +} + + +ret_code_t nfc_ndef_record_encode(nfc_ndef_record_desc_t const * p_ndef_record_desc, + nfc_ndef_record_location_t record_location, + uint8_t * p_record_buffer, + uint32_t * p_record_len) +{ + uint8_t * p_flags; // use as pointer to TNF + flags field + uint8_t * p_payload_len = NULL; // use as pointer to payload length field + uint32_t record_payload_len; + + if (p_ndef_record_desc == NULL) + { + return NRF_ERROR_NULL; + } + + // count record length without payload + uint32_t record_header_len = record_header_size_calc(p_ndef_record_desc); + uint32_t err_code = NRF_SUCCESS; + + if (p_record_buffer != NULL) + { + /* verify location range */ + if ((record_location & (~NDEF_RECORD_LOCATION_MASK)) != 0x00) + { + return NRF_ERROR_INVALID_PARAM; + } + + /* verify if there is enough available memory */ + if (record_header_len > *p_record_len) + { + return NRF_ERROR_NO_MEM; + } + + p_flags = p_record_buffer; + p_record_buffer++; + + // set location bits and clear other bits in 1st byte. + *p_flags = record_location; + + *p_flags |= p_ndef_record_desc->tnf; + + /* TYPE LENGTH */ + *(p_record_buffer++) = p_ndef_record_desc->type_length; + + // use always long record and remember payload len field memory offset. + p_payload_len = p_record_buffer; + p_record_buffer += NDEF_RECORD_PAYLOAD_LEN_LONG_SIZE; + + /* ID LENGTH - option */ + if (p_ndef_record_desc->id_length > 0) + { + *(p_record_buffer++) = p_ndef_record_desc->id_length; + + /* IL flag */ + *p_flags |= NDEF_RECORD_IL_MASK; + } + + /* TYPE */ + memcpy(p_record_buffer, p_ndef_record_desc->p_type, p_ndef_record_desc->type_length); + p_record_buffer += p_ndef_record_desc->type_length; + + /* ID */ + if (p_ndef_record_desc->id_length > 0) + { + memcpy(p_record_buffer, p_ndef_record_desc->p_id, p_ndef_record_desc->id_length); + p_record_buffer += p_ndef_record_desc->id_length; + } + + // count how much memory is left in record buffer for payload field. + record_payload_len = (*p_record_len - record_header_len); + } + + /* PAYLOAD */ + if (p_ndef_record_desc->payload_constructor != NULL) + { + err_code = + p_ndef_record_desc->payload_constructor(p_ndef_record_desc->p_payload_descriptor, + p_record_buffer, + &record_payload_len); + + if (err_code != NRF_SUCCESS) + { + return err_code; + } + } + else + { + return NRF_ERROR_NULL; + } + + if (p_record_buffer != NULL) + { + /* PAYLOAD LENGTH */ + (void) uint32_big_encode(record_payload_len, p_payload_len); + } + + *p_record_len = record_header_len + record_payload_len; + + return NRF_SUCCESS; +} + + +ret_code_t nfc_ndef_bin_payload_memcopy(nfc_ndef_bin_payload_desc_t * p_payload_descriptor, + uint8_t * p_buffer, + uint32_t * p_len) +{ + + if (p_buffer != NULL) + { + if ( *p_len < p_payload_descriptor->payload_length) + { + return NRF_ERROR_NO_MEM; + } + + memcpy(p_buffer, + p_payload_descriptor->p_payload, + p_payload_descriptor->payload_length); + } + + *p_len = p_payload_descriptor->payload_length; + + return NRF_SUCCESS; +} + +#endif // NRF_MODULE_ENABLED(NFC_NDEF_RECORD) |