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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.c new file mode 100644 index 0000000..c4cdabe --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/nfc/ndef/connection_handover/ac_rec/nfc_ac_rec.c @@ -0,0 +1,164 @@ +/** + * 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_AC_REC) + +#include "nfc_ac_rec.h" +#include <string.h> +#include "nrf_error.h" +#include "nrf.h" + +#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. + +const uint8_t nfc_ac_rec_type_field[2] = {'a', 'c'}; ///< Alternative Carrier Record type. + +/** + * @brief Function for calculating the payload length of the NFC NDEF Alternative Carrier record. + */ +static uint32_t nfc_ac_rec_payload_size_get(nfc_ac_rec_payload_desc_t const * p_ac_rec_payload_desc) +{ + int32_t i = 0; + // Initialize with size of byte with CPS. + uint32_t payload_size = AC_REC_CPS_BYTE_SIZE; + + // Add Carrier Data Reference size. + payload_size += p_ac_rec_payload_desc->carrier_data_ref.length + AC_REC_DATA_REF_LEN_SIZE; + + // Add Auxiliary Data Reference Count size. + payload_size += AC_REC_AUX_DATA_REF_COUNT_SIZE; + + for (i = 0; i < p_ac_rec_payload_desc->aux_data_ref_count; i++) + { + // Add Auxiliary Data Reference size. + payload_size += p_ac_rec_payload_desc->p_aux_data_ref[i].length + AC_REC_DATA_REF_LEN_SIZE; + } + + return payload_size; +} + + +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) +{ + int32_t i = 0; + uint32_t payload_size = nfc_ac_rec_payload_size_get(p_nfc_rec_ac_payload_desc); + + if (p_buff != NULL) + { + // Not enough space in the buffer, return an error. + if (payload_size > *p_len) + { + return NRF_ERROR_NO_MEM; + } + + // Invalid CPS value. + if ( p_nfc_rec_ac_payload_desc->cps & ~NFC_AC_CPS_MASK ) + { + return NRF_ERROR_INVALID_PARAM; + } + + // Copy CPS. + *p_buff = p_nfc_rec_ac_payload_desc->cps; + p_buff += AC_REC_CPS_BYTE_SIZE; + + // Copy Carrier Data Reference. + *p_buff = p_nfc_rec_ac_payload_desc->carrier_data_ref.length; + p_buff += AC_REC_DATA_REF_LEN_SIZE; + + memcpy( p_buff, + p_nfc_rec_ac_payload_desc->carrier_data_ref.p_data, + p_nfc_rec_ac_payload_desc->carrier_data_ref.length ); + p_buff += p_nfc_rec_ac_payload_desc->carrier_data_ref.length; + + // Copy Auxiliary Data Reference. + *p_buff = p_nfc_rec_ac_payload_desc->aux_data_ref_count; + p_buff += AC_REC_AUX_DATA_REF_COUNT_SIZE; + + for (i = 0; i < p_nfc_rec_ac_payload_desc->aux_data_ref_count; i++) + { + *p_buff = p_nfc_rec_ac_payload_desc->p_aux_data_ref[i].length; + p_buff += AC_REC_DATA_REF_LEN_SIZE; + + memcpy( p_buff, + p_nfc_rec_ac_payload_desc->p_aux_data_ref[i].p_data, + p_nfc_rec_ac_payload_desc->p_aux_data_ref[i].length ); + p_buff += p_nfc_rec_ac_payload_desc->p_aux_data_ref[i].length; + } + } + + // Assign payload size to the return buffer. + *p_len = payload_size; + + return NRF_SUCCESS; +} + + +void nfc_ac_rec_auxiliary_data_ref_clear(nfc_ndef_record_desc_t * p_ac_rec) +{ + nfc_ac_rec_payload_desc_t * p_ac_rec_payload = + (nfc_ac_rec_payload_desc_t*)p_ac_rec->p_payload_descriptor; + + p_ac_rec_payload->aux_data_ref_count = 0; +} + + +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) +{ + nfc_ac_rec_payload_desc_t * p_ac_rec_payload = + (nfc_ac_rec_payload_desc_t *)p_ac_rec->p_payload_descriptor; + + if (p_ac_rec_payload->aux_data_ref_count >= p_ac_rec_payload->max_aux_data_ref) + { + return NRF_ERROR_NO_MEM; + } + + p_ac_rec_payload->p_aux_data_ref[p_ac_rec_payload->aux_data_ref_count].p_data = p_aux_data; + p_ac_rec_payload->p_aux_data_ref[p_ac_rec_payload->aux_data_ref_count].length = aux_length; + p_ac_rec_payload->aux_data_ref_count++; + + return NRF_SUCCESS; +} + +#endif // NRF_MODULE_ENABLED(NFC_AC_REC) |