Internal part of the parser for NFC NDEF messages. More...
Data Structures | |
| struct | nfc_ndef_parser_memo_desc_t |
| Type for holding descriptors that are used by the NDEF parser. More... | |
| struct | parsed_ndef_msg_1_t |
| Memory allocated for a one-record message. More... | |
| struct | parsed_ndef_msg_2_t |
| Memory allocated for a two-record message. More... | |
Macros | |
| #define | NFC_PARSER_M_DELTA (sizeof(parsed_ndef_msg_2_t) - sizeof(parsed_ndef_msg_1_t)) |
| Amount of memory that is required per record in addition to the memory allocated for the message descriptor. | |
Functions | |
| ret_code_t | ndef_parser_memo_resolve (uint8_t *const p_result_buf, uint32_t *const p_result_buf_len, nfc_ndef_parser_memo_desc_t *const p_parser_memo_desc) |
| Function for resolving data instances in the provided buffer according to requirements of the function internal_ndef_msg_parser. More... | |
| ret_code_t | internal_ndef_msg_parser (nfc_ndef_parser_memo_desc_t *const p_parser_memo_desc, uint8_t const *p_nfc_data, uint32_t *const p_nfc_data_len) |
| Function for parsing NFC NDEF messages. More... | |
Internal part of the parser for NFC NDEF messages.
| ret_code_t internal_ndef_msg_parser | ( | nfc_ndef_parser_memo_desc_t *const | p_parser_memo_desc, |
| uint8_t const * | p_nfc_data, | ||
| uint32_t *const | p_nfc_data_len | ||
| ) |
Function for parsing NFC NDEF messages.
This internal function parses NDEF messages into certain data instances.
This function should not be used directly.
| [in,out] | p_parser_memo_desc | Pointer to the structure that holds descriptors of the allocated data instances for the parser. This structure contains the following fields: .p_msg_desc Pointer to the message descriptor that will be filled with parsed data. .p_bin_pay_desc Pointer to the array of binary payload descriptors that will be filled with parsed data. .p_rec_desc Pointer to the array of record descriptors that will be filled with parsed data. The arrays specified by |
| [in] | p_nfc_data | Pointer to the data to be parsed. |
| [in,out] | p_nfc_data_len | As input: size of the NFC data in the p_nfc_data buffer. As output: size of the parsed message. |
| NRF_SUCCESS | If the function completed successfully. |
| NRF_ERROR_INVALID_LENGTH | If the expected message length is bigger than the amount of provided input data. |
| NRF_ERROR_INVALID_DATA | If the message is not a valid NDEF message. |
| NRF_ERROR_NO_MEM | If the provided memory resources are too small to hold the parsing result. |
| ret_code_t ndef_parser_memo_resolve | ( | uint8_t *const | p_result_buf, |
| uint32_t *const | p_result_buf_len, | ||
| nfc_ndef_parser_memo_desc_t *const | p_parser_memo_desc | ||
| ) |
Function for resolving data instances in the provided buffer according to requirements of the function internal_ndef_msg_parser.
This internal function distributes the provided memory between certain data instances that are required by internal_ndef_msg_parser.
This function should not be used directly.
| [in] | p_result_buf | Pointer to the buffer that will be used to allocate data instances. |
| [in,out] | p_result_buf_len | As input: size of the buffer specified by p_result_buf. As output: size of the reserved (used) part of the buffer specified by p_result_buf. |
| [out] | p_parser_memo_desc | Pointer to the structure for holding descriptors of the allocated data instances. |
| NRF_SUCCESS | If the function completed successfully. |
| NRF_ERROR_NO_MEM | If the provided buffer is too small to hold a one-record message. |