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405 lines
14 KiB
C++
405 lines
14 KiB
C++
/*
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* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of either the GNU General Public License version 2
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* or the GNU Lesser General Public License version 2.1, both as
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* published by the Free Software Foundation.
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*/
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#ifndef W5100_H_INCLUDED
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#define W5100_H_INCLUDED
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#include <avr/pgmspace.h>
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#include <SPI.h>
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#define MAX_SOCK_NUM 4
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typedef uint8_t SOCKET;
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#define IDM_OR 0x8000
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#define IDM_AR0 0x8001
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#define IDM_AR1 0x8002
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#define IDM_DR 0x8003
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/*
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class MR {
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public:
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static const uint8_t RST = 0x80;
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static const uint8_t PB = 0x10;
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static const uint8_t PPPOE = 0x08;
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static const uint8_t LB = 0x04;
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static const uint8_t AI = 0x02;
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static const uint8_t IND = 0x01;
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};
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*/
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/*
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class IR {
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public:
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static const uint8_t CONFLICT = 0x80;
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static const uint8_t UNREACH = 0x40;
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static const uint8_t PPPoE = 0x20;
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static const uint8_t SOCK0 = 0x01;
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static const uint8_t SOCK1 = 0x02;
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static const uint8_t SOCK2 = 0x04;
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static const uint8_t SOCK3 = 0x08;
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static inline uint8_t SOCK(SOCKET ch) { return (0x01 << ch); };
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};
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*/
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class SnMR {
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public:
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static const uint8_t CLOSE = 0x00;
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static const uint8_t TCP = 0x01;
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static const uint8_t UDP = 0x02;
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static const uint8_t IPRAW = 0x03;
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static const uint8_t MACRAW = 0x04;
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static const uint8_t PPPOE = 0x05;
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static const uint8_t ND = 0x20;
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static const uint8_t MULTI = 0x80;
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};
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enum SockCMD {
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Sock_OPEN = 0x01,
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Sock_LISTEN = 0x02,
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Sock_CONNECT = 0x04,
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Sock_DISCON = 0x08,
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Sock_CLOSE = 0x10,
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Sock_SEND = 0x20,
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Sock_SEND_MAC = 0x21,
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Sock_SEND_KEEP = 0x22,
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Sock_RECV = 0x40
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};
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/*class SnCmd {
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public:
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static const uint8_t OPEN = 0x01;
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static const uint8_t LISTEN = 0x02;
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static const uint8_t CONNECT = 0x04;
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static const uint8_t DISCON = 0x08;
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static const uint8_t CLOSE = 0x10;
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static const uint8_t SEND = 0x20;
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static const uint8_t SEND_MAC = 0x21;
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static const uint8_t SEND_KEEP = 0x22;
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static const uint8_t RECV = 0x40;
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};
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*/
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class SnIR {
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public:
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static const uint8_t SEND_OK = 0x10;
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static const uint8_t TIMEOUT = 0x08;
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static const uint8_t RECV = 0x04;
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static const uint8_t DISCON = 0x02;
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static const uint8_t CON = 0x01;
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};
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class SnSR {
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public:
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static const uint8_t CLOSED = 0x00;
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static const uint8_t INIT = 0x13;
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static const uint8_t LISTEN = 0x14;
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static const uint8_t SYNSENT = 0x15;
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static const uint8_t SYNRECV = 0x16;
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static const uint8_t ESTABLISHED = 0x17;
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static const uint8_t FIN_WAIT = 0x18;
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static const uint8_t CLOSING = 0x1A;
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static const uint8_t TIME_WAIT = 0x1B;
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static const uint8_t CLOSE_WAIT = 0x1C;
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static const uint8_t LAST_ACK = 0x1D;
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static const uint8_t UDP = 0x22;
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static const uint8_t IPRAW = 0x32;
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static const uint8_t MACRAW = 0x42;
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static const uint8_t PPPOE = 0x5F;
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};
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class IPPROTO {
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public:
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static const uint8_t IP = 0;
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static const uint8_t ICMP = 1;
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static const uint8_t IGMP = 2;
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static const uint8_t GGP = 3;
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static const uint8_t TCP = 6;
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static const uint8_t PUP = 12;
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static const uint8_t UDP = 17;
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static const uint8_t IDP = 22;
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static const uint8_t ND = 77;
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static const uint8_t RAW = 255;
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};
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class W5100Class {
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public:
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void init();
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/**
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* @brief This function is being used for copy the data form Receive buffer of the chip to application buffer.
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*
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* It calculate the actual physical address where one has to read
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* the data from Receive buffer. Here also take care of the condition while it exceed
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* the Rx memory uper-bound of socket.
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*/
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void read_data(SOCKET s, volatile uint16_t src, volatile uint8_t * dst, uint16_t len);
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/**
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* @brief This function is being called by send() and sendto() function also.
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*
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* This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer
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* register. User should read upper byte first and lower byte later to get proper value.
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*/
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void send_data_processing(SOCKET s, const uint8_t *data, uint16_t len);
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/**
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* @brief A copy of send_data_processing that uses the provided ptr for the
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* write offset. Only needed for the "streaming" UDP API, where
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* a single UDP packet is built up over a number of calls to
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* send_data_processing_ptr, because TX_WR doesn't seem to get updated
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* correctly in those scenarios
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* @param ptr value to use in place of TX_WR. If 0, then the value is read
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* in from TX_WR
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* @return New value for ptr, to be used in the next call
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*/
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// FIXME Update documentation
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void send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len);
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/**
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* @brief This function is being called by recv() also.
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*
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* This function read the Rx read pointer register
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* and after copy the data from receive buffer update the Rx write pointer register.
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* User should read upper byte first and lower byte later to get proper value.
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*/
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void recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek = 0);
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inline void setGatewayIp(uint8_t *_addr);
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inline void getGatewayIp(uint8_t *_addr);
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inline void setSubnetMask(uint8_t *_addr);
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inline void getSubnetMask(uint8_t *_addr);
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inline void setMACAddress(uint8_t * addr);
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inline void getMACAddress(uint8_t * addr);
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inline void setIPAddress(uint8_t * addr);
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inline void getIPAddress(uint8_t * addr);
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inline void setRetransmissionTime(uint16_t timeout);
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inline void setRetransmissionCount(uint8_t _retry);
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void execCmdSn(SOCKET s, SockCMD _cmd);
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uint16_t getTXFreeSize(SOCKET s);
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uint16_t getRXReceivedSize(SOCKET s);
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// W5100 Registers
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// ---------------
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private:
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static uint8_t write(uint16_t _addr, uint8_t _data);
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static uint16_t write(uint16_t addr, const uint8_t *buf, uint16_t len);
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static uint8_t read(uint16_t addr);
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static uint16_t read(uint16_t addr, uint8_t *buf, uint16_t len);
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#define __GP_REGISTER8(name, address) \
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static inline void write##name(uint8_t _data) { \
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write(address, _data); \
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} \
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static inline uint8_t read##name() { \
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return read(address); \
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}
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#define __GP_REGISTER16(name, address) \
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static void write##name(uint16_t _data) { \
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write(address, _data >> 8); \
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write(address+1, _data & 0xFF); \
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} \
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static uint16_t read##name() { \
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uint16_t res = read(address); \
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res = (res << 8) + read(address + 1); \
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return res; \
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}
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#define __GP_REGISTER_N(name, address, size) \
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static uint16_t write##name(uint8_t *_buff) { \
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return write(address, _buff, size); \
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} \
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static uint16_t read##name(uint8_t *_buff) { \
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return read(address, _buff, size); \
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}
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public:
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__GP_REGISTER8 (MR, 0x0000); // Mode
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__GP_REGISTER_N(GAR, 0x0001, 4); // Gateway IP address
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__GP_REGISTER_N(SUBR, 0x0005, 4); // Subnet mask address
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__GP_REGISTER_N(SHAR, 0x0009, 6); // Source MAC address
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__GP_REGISTER_N(SIPR, 0x000F, 4); // Source IP address
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__GP_REGISTER8 (IR, 0x0015); // Interrupt
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__GP_REGISTER8 (IMR, 0x0016); // Interrupt Mask
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__GP_REGISTER16(RTR, 0x0017); // Timeout address
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__GP_REGISTER8 (RCR, 0x0019); // Retry count
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__GP_REGISTER8 (RMSR, 0x001A); // Receive memory size
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__GP_REGISTER8 (TMSR, 0x001B); // Transmit memory size
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__GP_REGISTER8 (PATR, 0x001C); // Authentication type address in PPPoE mode
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__GP_REGISTER8 (PTIMER, 0x0028); // PPP LCP Request Timer
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__GP_REGISTER8 (PMAGIC, 0x0029); // PPP LCP Magic Number
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__GP_REGISTER_N(UIPR, 0x002A, 4); // Unreachable IP address in UDP mode
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__GP_REGISTER16(UPORT, 0x002E); // Unreachable Port address in UDP mode
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#undef __GP_REGISTER8
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#undef __GP_REGISTER16
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#undef __GP_REGISTER_N
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// W5100 Socket registers
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// ----------------------
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private:
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static inline uint8_t readSn(SOCKET _s, uint16_t _addr);
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static inline uint8_t writeSn(SOCKET _s, uint16_t _addr, uint8_t _data);
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static inline uint16_t readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len);
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static inline uint16_t writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t len);
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static const uint16_t CH_BASE = 0x0400;
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static const uint16_t CH_SIZE = 0x0100;
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#define __SOCKET_REGISTER8(name, address) \
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static inline void write##name(SOCKET _s, uint8_t _data) { \
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writeSn(_s, address, _data); \
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} \
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static inline uint8_t read##name(SOCKET _s) { \
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return readSn(_s, address); \
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}
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#define __SOCKET_REGISTER16(name, address) \
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static void write##name(SOCKET _s, uint16_t _data) { \
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writeSn(_s, address, _data >> 8); \
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writeSn(_s, address+1, _data & 0xFF); \
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} \
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static uint16_t read##name(SOCKET _s) { \
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uint16_t res = readSn(_s, address); \
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uint16_t res2 = readSn(_s,address + 1); \
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res = res << 8; \
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res2 = res2 & 0xFF; \
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res = res | res2; \
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return res; \
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}
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#define __SOCKET_REGISTER_N(name, address, size) \
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static uint16_t write##name(SOCKET _s, uint8_t *_buff) { \
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return writeSn(_s, address, _buff, size); \
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} \
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static uint16_t read##name(SOCKET _s, uint8_t *_buff) { \
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return readSn(_s, address, _buff, size); \
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}
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public:
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__SOCKET_REGISTER8(SnMR, 0x0000) // Mode
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__SOCKET_REGISTER8(SnCR, 0x0001) // Command
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__SOCKET_REGISTER8(SnIR, 0x0002) // Interrupt
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__SOCKET_REGISTER8(SnSR, 0x0003) // Status
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__SOCKET_REGISTER16(SnPORT, 0x0004) // Source Port
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__SOCKET_REGISTER_N(SnDHAR, 0x0006, 6) // Destination Hardw Addr
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__SOCKET_REGISTER_N(SnDIPR, 0x000C, 4) // Destination IP Addr
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__SOCKET_REGISTER16(SnDPORT, 0x0010) // Destination Port
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__SOCKET_REGISTER16(SnMSSR, 0x0012) // Max Segment Size
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__SOCKET_REGISTER8(SnPROTO, 0x0014) // Protocol in IP RAW Mode
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__SOCKET_REGISTER8(SnTOS, 0x0015) // IP TOS
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__SOCKET_REGISTER8(SnTTL, 0x0016) // IP TTL
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__SOCKET_REGISTER16(SnTX_FSR, 0x0020) // TX Free Size
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__SOCKET_REGISTER16(SnTX_RD, 0x0022) // TX Read Pointer
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__SOCKET_REGISTER16(SnTX_WR, 0x0024) // TX Write Pointer
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__SOCKET_REGISTER16(SnRX_RSR, 0x0026) // RX Free Size
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__SOCKET_REGISTER16(SnRX_RD, 0x0028) // RX Read Pointer
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__SOCKET_REGISTER16(SnRX_WR, 0x002A) // RX Write Pointer (supported?)
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#undef __SOCKET_REGISTER8
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#undef __SOCKET_REGISTER16
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#undef __SOCKET_REGISTER_N
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private:
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static const uint8_t RST = 7; // Reset BIT
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static const int SOCKETS = 4;
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static const uint16_t SMASK = 0x07FF; // Tx buffer MASK
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static const uint16_t RMASK = 0x07FF; // Rx buffer MASK
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public:
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static const uint16_t SSIZE = 2048; // Max Tx buffer size
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private:
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static const uint16_t RSIZE = 2048; // Max Rx buffer size
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uint16_t SBASE[SOCKETS]; // Tx buffer base address
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uint16_t RBASE[SOCKETS]; // Rx buffer base address
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private:
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#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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inline static void initSS() { DDRB |= _BV(4); };
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inline static void setSS() { PORTB &= ~_BV(4); };
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inline static void resetSS() { PORTB |= _BV(4); };
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#elif defined(__AVR_ATmega32U4__)
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inline static void initSS() { DDRB |= _BV(6); };
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inline static void setSS() { PORTB &= ~_BV(6); };
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inline static void resetSS() { PORTB |= _BV(6); };
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#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__)
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inline static void initSS() { DDRB |= _BV(0); };
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inline static void setSS() { PORTB &= ~_BV(0); };
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inline static void resetSS() { PORTB |= _BV(0); };
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#else
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inline static void initSS() { DDRB |= _BV(2); };
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inline static void setSS() { PORTB &= ~_BV(2); };
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inline static void resetSS() { PORTB |= _BV(2); };
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#endif
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};
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extern W5100Class W5100;
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uint8_t W5100Class::readSn(SOCKET _s, uint16_t _addr) {
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return read(CH_BASE + _s * CH_SIZE + _addr);
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}
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uint8_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t _data) {
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return write(CH_BASE + _s * CH_SIZE + _addr, _data);
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}
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uint16_t W5100Class::readSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) {
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return read(CH_BASE + _s * CH_SIZE + _addr, _buf, _len);
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}
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uint16_t W5100Class::writeSn(SOCKET _s, uint16_t _addr, uint8_t *_buf, uint16_t _len) {
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return write(CH_BASE + _s * CH_SIZE + _addr, _buf, _len);
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}
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void W5100Class::getGatewayIp(uint8_t *_addr) {
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readGAR(_addr);
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}
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void W5100Class::setGatewayIp(uint8_t *_addr) {
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writeGAR(_addr);
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}
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void W5100Class::getSubnetMask(uint8_t *_addr) {
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readSUBR(_addr);
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}
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void W5100Class::setSubnetMask(uint8_t *_addr) {
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writeSUBR(_addr);
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}
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void W5100Class::getMACAddress(uint8_t *_addr) {
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readSHAR(_addr);
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}
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void W5100Class::setMACAddress(uint8_t *_addr) {
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writeSHAR(_addr);
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}
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void W5100Class::getIPAddress(uint8_t *_addr) {
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readSIPR(_addr);
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}
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void W5100Class::setIPAddress(uint8_t *_addr) {
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writeSIPR(_addr);
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}
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void W5100Class::setRetransmissionTime(uint16_t _timeout) {
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writeRTR(_timeout);
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}
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void W5100Class::setRetransmissionCount(uint8_t _retry) {
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writeRCR(_retry);
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}
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#endif
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