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...

Detailed Description

Internal part of the parser for NFC NDEF messages.

Function Documentation

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.

Parameters

[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 .p_bin_pay_desc and .p_rec_desc must not contain more elements than the message descriptor specified by .p_msg_desc can hold.
[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.

Return values

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.

Parameters

[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.

Return values

NRF_SUCCESS	If the function completed successfully.
NRF_ERROR_NO_MEM	If the provided buffer is too small to hold a one-record message.