84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
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/*
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* https://ciapini.wiki.esiliati.org/view/ArNet
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*/
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#ifndef ARNET_TYPES_H
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#define ARNET_TYPES_H
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#include <stdint.h>
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#include "../net.h"
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#define ARNET_PACKET_PROTOCOL 1 ///< 4bit net protocol id - arnet = 0
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#define ARNET_PADDING 0
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#define ARNET_ADDRESS_SIZE 256 ///< max arnet address space
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#define ARNET_MAX_HEADER_NUMBER 16 ///< max arnet optional headers
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#define ARNET_MAX_PACKET_SIZE 1024+((ARNET_MAX_HEADER_NUMBER+1)*4) ///< max arnet packet size
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// ERRORS & STATUS
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// #define ARNET_ERR_INVALID_SRC 1 // invalid source address
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// #define ARNET_ERR_INVALID_DST 2 // invalid destination address
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#define ARNET_EC_OK 0
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#define ARNET_EC_WRONG 1
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#define ARNET_EC_DISABLED 2
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#define ARNET_EC_INVALID_ALGO 3
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#define ARNET_CRC24_INIT 0xffffff
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/* TODO
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typedef struct {
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uint8_t headers_pending;
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uint8_t headers_parsed;
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uint8_t headers_done[ARNET_MAX_HEADER_NUMBER];
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} arnet_status;
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*/
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// il payload size va nella coda net
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typedef struct {
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uint8_t protocol; ///< codice protocollo
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uint8_t header_size; ///< numero di header aggiuntivi
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uint16_t payload_size; ///< dimensione del payload in byte
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uint8_t src_addr; ///< indirizzo mittente
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uint8_t dst_addr; ///< indirizzo destinatario
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} DH;
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typedef struct {
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uint8_t enabled;
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// uint16_t vci;
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uint8_t sequence;
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uint8_t acknowledge;
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} VC;
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typedef struct {
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uint8_t enabled;
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uint8_t algo;
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uint8_t ARQ;
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uint8_t ACK;
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uint32_t value;
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} EC;
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typedef struct {
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uint8_t enabled;
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uint8_t segaddr;
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uint8_t timeframe;
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uint8_t beacon_period;
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uint8_t reserved_window;
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} SAAH;
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typedef struct {
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DH dh; ///< default header
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VC vc;
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EC ec;
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SAAH saah;
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} arnet_packet;
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extern uint8_t arnet_tx_headers_pending, arnet_tx_headers_done[16], arnet_rx_headers_parsed;
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extern arnet_packet arnet_tx_packet_queue[NET_PACKET_RINGBUF_SIZE], arnet_rx_packet_queue[NET_PACKET_RINGBUF_SIZE];
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#endif /* ARNET_TYPES_H */
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