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hg 2015-05-07 22:17:38 +02:00
parent ca8ed709b8
commit 9c9f795b2f
26 changed files with 5704 additions and 226 deletions
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33
.cproject
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@ -1,7 +1,5 @@
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?fileVersion 4.0.0?>
<cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<storageModule moduleId="org.eclipse.cdt.core.settings">
<cconfiguration id="it.baeyens.arduino.core.toolChain.release.400069008">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="it.baeyens.arduino.core.toolChain.release.400069008" moduleId="org.eclipse.cdt.core.settings" name="Release">
@ -22,22 +20,17 @@
<tool id="it.baeyens.arduino.tool.sketch.compiler.cpp.442521309" name="Arduino C++ Compiler" superClass="it.baeyens.arduino.tool.sketch.compiler.cpp">
<option id="it.baeyens.arduino.compiler.cpp.sketch.option.incpath.1534135165" name="Include Paths (-I)" superClass="it.baeyens.arduino.compiler.cpp.sketch.option.incpath" valueType="includePath">
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/arduino/core}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Ethernet}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Ethernet/utility}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/SPI}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/EEPROM}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Streaming}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Ethernet}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Ethernet/utility}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/SPI}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/EEPROM}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Streaming}&quot;"/>
</option>
<inputType id="it.baeyens.arduino.compiler.cpp.sketch.input.1988694850" name="CPP source files" superClass="it.baeyens.arduino.compiler.cpp.sketch.input"/>
</tool>
<tool id="it.baeyens.arduino.tool.compiler.c.1177223344" name="Arduino C Compiler" superClass="it.baeyens.arduino.tool.compiler.c">
<option id="it.baeyens.arduino.compiler.c.sketch.option.incpath.420249303" name="Include Paths (-I)" superClass="it.baeyens.arduino.compiler.c.sketch.option.incpath" valueType="includePath">
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/arduino/core}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Ethernet}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Ethernet/utility}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/SPI}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/EEPROM}&quot;"/>
<listOptionValue builtIn="false" value="&quot;${workspace_loc:/NetMeterBusMaster2/Libraries/Streaming}&quot;"/>
</option>
<inputType id="it.baeyens.arduino.compiler.c.sketch.input.1905071279" name="C Source Files" superClass="it.baeyens.arduino.compiler.c.sketch.input"/>
</tool>
@ -46,10 +39,15 @@
<tool id="it.baeyens.arduino.tool.objcopy.eep.2038346519" name="Arduino tool Create eeprom" superClass="it.baeyens.arduino.tool.objcopy.eep"/>
<tool id="it.baeyens.arduino.tool.objcopy.flash.1009260605" name="Arduino tool Create hex" superClass="it.baeyens.arduino.tool.objcopy.flash"/>
<tool id="it.baeyens.arduino.tool.size.2023431554" name="Arduino tool Print Size" superClass="it.baeyens.arduino.tool.size"/>
<tool id="it.baeyens.arduino.tool.sketch.compiler.s.681983130" name="Arduino Assembler" superClass="it.baeyens.arduino.tool.sketch.compiler.s"/>
</toolChain>
</folderInfo>
<sourceEntries>
<entry excluding="Libraries/*/?xamples" flags="VALUE_WORKSPACE_PATH" kind="sourcePath" name=""/>
<entry excluding="EEPROM|Streaming|SPI|Ethernet|Libraries/*/?xamples" flags="VALUE_WORKSPACE_PATH" kind="sourcePath" name=""/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="EEPROM"/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Ethernet"/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="SPI"/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="Streaming"/>
</sourceEntries>
</configuration>
</storageModule>
@ -63,5 +61,10 @@
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
<storageModule moduleId="refreshScope"/>
<storageModule moduleId="refreshScope" versionNumber="2">
<configuration configurationName="Release">
<resource resourceType="PROJECT" workspacePath="/NetMeterBusMaster2"/>
</configuration>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
</cproject>

26
.project
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@ -26,26 +26,6 @@
<nature>it.baeyens.arduinonature</nature>
</natures>
<linkedResources>
<link>
<name>Libraries/EEPROM</name>
<type>2</type>
<locationURI>ArduinoHardwareLibPath/EEPROM</locationURI>
</link>
<link>
<name>Libraries/Ethernet</name>
<type>2</type>
<locationURI>ArduinoHardwareLibPath/Ethernet</locationURI>
</link>
<link>
<name>Libraries/SPI</name>
<type>2</type>
<locationURI>ArduinoHardwareLibPath/SPI</locationURI>
</link>
<link>
<name>Libraries/Streaming</name>
<type>2</type>
<locationURI>ArduinoPivateLibPath/Streaming</locationURI>
</link>
<link>
<name>arduino/core</name>
<type>2</type>
@ -55,15 +35,15 @@
<variableList>
<variable>
<name>ArduinoHardwareLibPath</name>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/all/libraries</value>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/avr/libraries</value>
</variable>
<variable>
<name>ArduinoPinPath</name>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/all/variants</value>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/avr/variants</value>
</variable>
<variable>
<name>ArduinoPlatformPath</name>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/all</value>
<value>file:/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/avr</value>
</variable>
</variableList>
</projectDescription>

2
.settings/language.settings.xml
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@ -3,7 +3,7 @@
<configuration id="it.baeyens.arduino.core.toolChain.release.400069008" name="Release">
<extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
<provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
<provider class="it.baeyens.arduino.toolchain.ArduinoLanguageProvider" console="false" env-hash="-2011256820" id="it.baeyens.arduino.languageSettingsProvider" keep-relative-paths="false" name="Arduino Compiler Settings" parameter="${COMMAND} -E -P -v -dD ${INPUTS}" prefer-non-shared="true">
<provider class="it.baeyens.arduino.toolchain.ArduinoLanguageProvider" console="false" env-hash="631094806828645103" id="it.baeyens.arduino.languageSettingsProvider" keep-relative-paths="false" name="Arduino Compiler Settings" parameter="${COMMAND} -E -P -v -dD ${INPUTS}" prefer-non-shared="true">
<language-scope id="org.eclipse.cdt.core.gcc"/>
<language-scope id="org.eclipse.cdt.core.g++"/>
</provider>

332
.settings/org.eclipse.cdt.core.prefs
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@ -1,19 +1,16 @@
eclipse.preferences.version=1
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.ARCHITECTURE/value=all
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.ARCHITECTURE/value=avr
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.ARCHIVE_FILE/value=teensy.ar
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.ARCHIVE_FILE/value=arduino.ar
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@ -32,168 +29,126 @@ environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.BUILD.
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@ -214,28 +169,49 @@ environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.RECIPE
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@ -244,79 +220,58 @@ environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.RUNTIM
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/A.UPLOAD.TOOL/value=teensyloader
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.BOARDS_FILE/value=/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/avr/boards.txt
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.COM_PROGMR/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.COM_PROGMR/value=Default
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.CPU\ Speed/delimiter=\:
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.CPU\ Speed/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.CPU\ Speed/value=24 MHz
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.CPU\ Speed/value=72 MHz
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.EXTRA.C.COMPILE/delimiter=\:
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.EXTRA.C.COMPILE/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.EXTRA.C.COMPILE/value=
@ -328,10 +283,10 @@ environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.E
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.EXTRA.CPP.COMPILE/value=
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.Keyboard\ Layout/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.Keyboard\ Layout/value=US English
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.Keyboard\ Layout/value=German (Mac)
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.PLATFORM_FILE/delimiter=\:
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.PLATFORM_FILE/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.PLATFORM_FILE/value=/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/all/platform.txt
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.PLATFORM_FILE/value=/Applications/Arduino.app/Contents/Resources/Java/hardware/teensy/avr/platform.txt
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.Processor/value=
@ -350,6 +305,9 @@ environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.T
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.USB\ Type/delimiter=\:
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/JANTJE.WARNING_LEVEL/value=\ -w
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environment/project/it.baeyens.arduino.core.toolChain.release.400069008/PATH/operation=replace
environment/project/it.baeyens.arduino.core.toolChain.release.400069008/PATH/value=${A.COMPILER.PATH}${PathDelimiter}${A.BUILD.GENERIC.PATH}${PathDelimiter}${PATH}

50
EEPROM/EEPROM.cpp Normal file
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@ -0,0 +1,50 @@
/*
EEPROM.cpp - EEPROM library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/******************************************************************************
* Includes
******************************************************************************/
#include <avr/eeprom.h>
#include "Arduino.h"
#include "EEPROM.h"
/******************************************************************************
* Definitions
******************************************************************************/
/******************************************************************************
* Constructors
******************************************************************************/
/******************************************************************************
* User API
******************************************************************************/
uint8_t EEPROMClass::read(int address)
{
return eeprom_read_byte((unsigned char *) address);
}
void EEPROMClass::write(int address, uint8_t value)
{
eeprom_write_byte((unsigned char *) address, value);
}
EEPROMClass EEPROM;

42
EEPROM/EEPROM.h Normal file
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@ -0,0 +1,42 @@
/*
EEPROM.h - EEPROM library
Copyright (c) 2006 David A. Mellis. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EEPROM_h
#define EEPROM_h
#include <inttypes.h>
#if defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__)
#include "avr_functions.h"
#endif
class EEPROMClass
{
public:
#if defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__)
EEPROMClass() { eeprom_initialize(); }
#endif
uint8_t read(int);
void write(int, uint8_t);
};
extern EEPROMClass EEPROM;
#endif

480
Ethernet/Dhcp.cpp Normal file
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// DHCP Library v0.3 - April 25, 2009
// Author: Jordan Terrell - blog.jordanterrell.com
#include "w5100.h"
#include <string.h>
#include <stdlib.h>
#include "Dhcp.h"
#include "Arduino.h"
#include "util.h"
int DhcpClass::beginWithDHCP(uint8_t *mac, unsigned long timeout, unsigned long responseTimeout)
{
_dhcpLeaseTime=0;
_dhcpT1=0;
_dhcpT2=0;
_lastCheck=0;
_timeout = timeout;
_responseTimeout = responseTimeout;
// zero out _dhcpMacAddr
memset(_dhcpMacAddr, 0, 6);
reset_DHCP_lease();
memcpy((void*)_dhcpMacAddr, (void*)mac, 6);
_dhcp_state = STATE_DHCP_START;
return request_DHCP_lease();
}
void DhcpClass::reset_DHCP_lease(){
// zero out _dhcpSubnetMask, _dhcpGatewayIp, _dhcpLocalIp, _dhcpDhcpServerIp, _dhcpDnsServerIp
memset(_dhcpLocalIp, 0, 20);
}
//return:0 on error, 1 if request is sent and response is received
int DhcpClass::request_DHCP_lease(){
uint8_t messageType = 0;
// Pick an initial transaction ID
_dhcpTransactionId = random(1UL, 2000UL);
_dhcpInitialTransactionId = _dhcpTransactionId;
_dhcpUdpSocket.stop();
if (_dhcpUdpSocket.begin(DHCP_CLIENT_PORT) == 0)
{
// Couldn't get a socket
return 0;
}
presend_DHCP();
int result = 0;
unsigned long startTime = millis();
while(_dhcp_state != STATE_DHCP_LEASED)
{
if(_dhcp_state == STATE_DHCP_START)
{
_dhcpTransactionId++;
send_DHCP_MESSAGE(DHCP_DISCOVER, ((millis() - startTime) / 1000));
_dhcp_state = STATE_DHCP_DISCOVER;
}
else if(_dhcp_state == STATE_DHCP_REREQUEST){
_dhcpTransactionId++;
send_DHCP_MESSAGE(DHCP_REQUEST, ((millis() - startTime)/1000));
_dhcp_state = STATE_DHCP_REQUEST;
}
else if(_dhcp_state == STATE_DHCP_DISCOVER)
{
uint32_t respId;
messageType = parseDHCPResponse(_responseTimeout, respId);
if(messageType == DHCP_OFFER)
{
// We'll use the transaction ID that the offer came with,
// rather than the one we were up to
_dhcpTransactionId = respId;
send_DHCP_MESSAGE(DHCP_REQUEST, ((millis() - startTime) / 1000));
_dhcp_state = STATE_DHCP_REQUEST;
}
}
else if(_dhcp_state == STATE_DHCP_REQUEST)
{
uint32_t respId;
messageType = parseDHCPResponse(_responseTimeout, respId);
if(messageType == DHCP_ACK)
{
_dhcp_state = STATE_DHCP_LEASED;
result = 1;
//use default lease time if we didn't get it
if(_dhcpLeaseTime == 0){
_dhcpLeaseTime = DEFAULT_LEASE;
}
//calculate T1 & T2 if we didn't get it
if(_dhcpT1 == 0){
//T1 should be 50% of _dhcpLeaseTime
_dhcpT1 = _dhcpLeaseTime >> 1;
}
if(_dhcpT2 == 0){
//T2 should be 87.5% (7/8ths) of _dhcpLeaseTime
_dhcpT2 = _dhcpT1 << 1;
}
_renewInSec = _dhcpT1;
_rebindInSec = _dhcpT2;
}
else if(messageType == DHCP_NAK)
_dhcp_state = STATE_DHCP_START;
}
if(messageType == 255)
{
messageType = 0;
_dhcp_state = STATE_DHCP_START;
}
if(result != 1 && ((millis() - startTime) > _timeout))
break;
}
// We're done with the socket now
_dhcpUdpSocket.stop();
_dhcpTransactionId++;
return result;
}
void DhcpClass::presend_DHCP()
{
}
void DhcpClass::send_DHCP_MESSAGE(uint8_t messageType, uint16_t secondsElapsed)
{
uint8_t buffer[32];
memset(buffer, 0, 32);
IPAddress dest_addr( 255, 255, 255, 255 ); // Broadcast address
if (-1 == _dhcpUdpSocket.beginPacket(dest_addr, DHCP_SERVER_PORT))
{
// FIXME Need to return errors
return;
}
buffer[0] = DHCP_BOOTREQUEST; // op
buffer[1] = DHCP_HTYPE10MB; // htype
buffer[2] = DHCP_HLENETHERNET; // hlen
buffer[3] = DHCP_HOPS; // hops
// xid
unsigned long xid = htonl(_dhcpTransactionId);
memcpy(buffer + 4, &(xid), 4);
// 8, 9 - seconds elapsed
buffer[8] = ((secondsElapsed & 0xff00) >> 8);
buffer[9] = (secondsElapsed & 0x00ff);
// flags
unsigned short flags = htons(DHCP_FLAGSBROADCAST);
memcpy(buffer + 10, &(flags), 2);
// ciaddr: already zeroed
// yiaddr: already zeroed
// siaddr: already zeroed
// giaddr: already zeroed
//put data in W5100 transmit buffer
_dhcpUdpSocket.write(buffer, 28);
memset(buffer, 0, 32); // clear local buffer
memcpy(buffer, _dhcpMacAddr, 6); // chaddr
//put data in W5100 transmit buffer
_dhcpUdpSocket.write(buffer, 16);
memset(buffer, 0, 32); // clear local buffer
// leave zeroed out for sname && file
// put in W5100 transmit buffer x 6 (192 bytes)
for(int i = 0; i < 6; i++) {
_dhcpUdpSocket.write(buffer, 32);
}
// OPT - Magic Cookie
buffer[0] = (uint8_t)((MAGIC_COOKIE >> 24)& 0xFF);
buffer[1] = (uint8_t)((MAGIC_COOKIE >> 16)& 0xFF);
buffer[2] = (uint8_t)((MAGIC_COOKIE >> 8)& 0xFF);
buffer[3] = (uint8_t)(MAGIC_COOKIE& 0xFF);
// OPT - message type
buffer[4] = dhcpMessageType;
buffer[5] = 0x01;
buffer[6] = messageType; //DHCP_REQUEST;
// OPT - client identifier
buffer[7] = dhcpClientIdentifier;
buffer[8] = 0x07;
buffer[9] = 0x01;
memcpy(buffer + 10, _dhcpMacAddr, 6);
// OPT - host name
buffer[16] = hostName;
buffer[17] = strlen(HOST_NAME) + 6; // length of hostname + last 3 bytes of mac address
strcpy((char*)&(buffer[18]), HOST_NAME);
printByte((char*)&(buffer[24]), _dhcpMacAddr[3]);
printByte((char*)&(buffer[26]), _dhcpMacAddr[4]);
printByte((char*)&(buffer[28]), _dhcpMacAddr[5]);
//put data in W5100 transmit buffer
_dhcpUdpSocket.write(buffer, 30);
if(messageType == DHCP_REQUEST)
{
buffer[0] = dhcpRequestedIPaddr;
buffer[1] = 0x04;
buffer[2] = _dhcpLocalIp[0];
buffer[3] = _dhcpLocalIp[1];
buffer[4] = _dhcpLocalIp[2];
buffer[5] = _dhcpLocalIp[3];
buffer[6] = dhcpServerIdentifier;
buffer[7] = 0x04;
buffer[8] = _dhcpDhcpServerIp[0];
buffer[9] = _dhcpDhcpServerIp[1];
buffer[10] = _dhcpDhcpServerIp[2];
buffer[11] = _dhcpDhcpServerIp[3];
//put data in W5100 transmit buffer
_dhcpUdpSocket.write(buffer, 12);
}
buffer[0] = dhcpParamRequest;
buffer[1] = 0x06;
buffer[2] = subnetMask;
buffer[3] = routersOnSubnet;
buffer[4] = dns;
buffer[5] = domainName;
buffer[6] = dhcpT1value;
buffer[7] = dhcpT2value;
buffer[8] = endOption;
//put data in W5100 transmit buffer
_dhcpUdpSocket.write(buffer, 9);
_dhcpUdpSocket.endPacket();
}
uint8_t DhcpClass::parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId)
{
uint8_t type = 0;
uint8_t opt_len = 0;
unsigned long startTime = millis();
while(_dhcpUdpSocket.parsePacket() <= 0)
{
if((millis() - startTime) > responseTimeout)
{
return 255;
}
delay(50);
}
// start reading in the packet
RIP_MSG_FIXED fixedMsg;
_dhcpUdpSocket.read((uint8_t*)&fixedMsg, sizeof(RIP_MSG_FIXED));
if(fixedMsg.op == DHCP_BOOTREPLY && _dhcpUdpSocket.remotePort() == DHCP_SERVER_PORT)
{
transactionId = ntohl(fixedMsg.xid);
if(memcmp(fixedMsg.chaddr, _dhcpMacAddr, 6) != 0 || (transactionId < _dhcpInitialTransactionId) || (transactionId > _dhcpTransactionId))
{
// Need to read the rest of the packet here regardless
_dhcpUdpSocket.flush();
return 0;
}
memcpy(_dhcpLocalIp, fixedMsg.yiaddr, 4);
// Skip to the option part
// Doing this a byte at a time so we don't have to put a big buffer
// on the stack (as we don't have lots of memory lying around)
for (int i =0; i < (240 - (int)sizeof(RIP_MSG_FIXED)); i++)
{
_dhcpUdpSocket.read(); // we don't care about the returned byte
}
while (_dhcpUdpSocket.available() > 0)
{
switch (_dhcpUdpSocket.read())
{
case endOption :
break;
case padOption :
break;
case dhcpMessageType :
opt_len = _dhcpUdpSocket.read();
type = _dhcpUdpSocket.read();
break;
case subnetMask :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read(_dhcpSubnetMask, 4);
break;
case routersOnSubnet :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read(_dhcpGatewayIp, 4);
for (int i = 0; i < opt_len-4; i++)
{
_dhcpUdpSocket.read();
}
break;
case dns :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read(_dhcpDnsServerIp, 4);
for (int i = 0; i < opt_len-4; i++)
{
_dhcpUdpSocket.read();
}
break;
case dhcpServerIdentifier :
opt_len = _dhcpUdpSocket.read();
if( *((uint32_t*)_dhcpDhcpServerIp) == 0 ||
IPAddress(_dhcpDhcpServerIp) == _dhcpUdpSocket.remoteIP() )
{
_dhcpUdpSocket.read(_dhcpDhcpServerIp, sizeof(_dhcpDhcpServerIp));
}
else
{
// Skip over the rest of this option
while (opt_len--)
{
_dhcpUdpSocket.read();
}
}
break;
case dhcpT1value :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read((uint8_t*)&_dhcpT1, sizeof(_dhcpT1));
_dhcpT1 = ntohl(_dhcpT1);
break;
case dhcpT2value :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read((uint8_t*)&_dhcpT2, sizeof(_dhcpT2));
_dhcpT2 = ntohl(_dhcpT2);
break;
case dhcpIPaddrLeaseTime :
opt_len = _dhcpUdpSocket.read();
_dhcpUdpSocket.read((uint8_t*)&_dhcpLeaseTime, sizeof(_dhcpLeaseTime));
_dhcpLeaseTime = ntohl(_dhcpLeaseTime);
_renewInSec = _dhcpLeaseTime;
break;
default :
opt_len = _dhcpUdpSocket.read();
// Skip over the rest of this option
while (opt_len--)
{
_dhcpUdpSocket.read();
}
break;
}
}
}
// Need to skip to end of the packet regardless here
_dhcpUdpSocket.flush();
return type;
}
/*
returns:
0/DHCP_CHECK_NONE: nothing happened
1/DHCP_CHECK_RENEW_FAIL: renew failed
2/DHCP_CHECK_RENEW_OK: renew success
3/DHCP_CHECK_REBIND_FAIL: rebind fail
4/DHCP_CHECK_REBIND_OK: rebind success
*/
int DhcpClass::checkLease(){
//this uses a signed / unsigned trick to deal with millis overflow
unsigned long now = millis();
signed long snow = (long)now;
int rc=DHCP_CHECK_NONE;
if (_lastCheck != 0){
signed long factor;
//calc how many ms past the timeout we are
factor = snow - (long)_secTimeout;
//if on or passed the timeout, reduce the counters
if ( factor >= 0 ){
//next timeout should be now plus 1000 ms minus parts of second in factor
_secTimeout = snow + 1000 - factor % 1000;
//how many seconds late are we, minimum 1
factor = factor / 1000 +1;
//reduce the counters by that mouch
//if we can assume that the cycle time (factor) is fairly constant
//and if the remainder is less than cycle time * 2
//do it early instead of late
if(_renewInSec < factor*2 )
_renewInSec = 0;
else
_renewInSec -= factor;
if(_rebindInSec < factor*2 )
_rebindInSec = 0;
else
_rebindInSec -= factor;
}
//if we have a lease but should renew, do it
if (_dhcp_state == STATE_DHCP_LEASED && _renewInSec <=0){
_dhcp_state = STATE_DHCP_REREQUEST;
rc = 1 + request_DHCP_lease();
}
//if we have a lease or is renewing but should bind, do it
if( (_dhcp_state == STATE_DHCP_LEASED || _dhcp_state == STATE_DHCP_START) && _rebindInSec <=0){
//this should basically restart completely
_dhcp_state = STATE_DHCP_START;
reset_DHCP_lease();
rc = 3 + request_DHCP_lease();
}
}
else{
_secTimeout = snow + 1000;
}
_lastCheck = now;
return rc;
}
IPAddress DhcpClass::getLocalIp()
{
return IPAddress(_dhcpLocalIp);
}
IPAddress DhcpClass::getSubnetMask()
{
return IPAddress(_dhcpSubnetMask);
}
IPAddress DhcpClass::getGatewayIp()
{
return IPAddress(_dhcpGatewayIp);
}
IPAddress DhcpClass::getDhcpServerIp()
{
return IPAddress(_dhcpDhcpServerIp);
}
IPAddress DhcpClass::getDnsServerIp()
{
return IPAddress(_dhcpDnsServerIp);
}
void DhcpClass::printByte(char * buf, uint8_t n ) {
char *str = &buf[1];
buf[0]='0';
do {
unsigned long m = n;
n /= 16;
char c = m - 16 * n;
*str-- = c < 10 ? c + '0' : c + 'A' - 10;
} while(n);
}

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// DHCP Library v0.3 - April 25, 2009
// Author: Jordan Terrell - blog.jordanterrell.com
#ifndef Dhcp_h
#define Dhcp_h
#include "EthernetUdp.h"
/* DHCP state machine. */
#define STATE_DHCP_START 0
#define STATE_DHCP_DISCOVER 1
#define STATE_DHCP_REQUEST 2
#define STATE_DHCP_LEASED 3
#define STATE_DHCP_REREQUEST 4
#define STATE_DHCP_RELEASE 5
#define DHCP_FLAGSBROADCAST 0x8000
/* UDP port numbers for DHCP */
#define DHCP_SERVER_PORT 67 /* from server to client */
#define DHCP_CLIENT_PORT 68 /* from client to server */
/* DHCP message OP code */
#define DHCP_BOOTREQUEST 1
#define DHCP_BOOTREPLY 2
/* DHCP message type */
#define DHCP_DISCOVER 1
#define DHCP_OFFER 2
#define DHCP_REQUEST 3
#define DHCP_DECLINE 4
#define DHCP_ACK 5
#define DHCP_NAK 6
#define DHCP_RELEASE 7
#define DHCP_INFORM 8
#define DHCP_HTYPE10MB 1
#define DHCP_HTYPE100MB 2
#define DHCP_HLENETHERNET 6
#define DHCP_HOPS 0
#define DHCP_SECS 0
#define MAGIC_COOKIE 0x63825363
#define MAX_DHCP_OPT 16
#define HOST_NAME "WIZnet"
#define DEFAULT_LEASE (900) //default lease time in seconds
#define DHCP_CHECK_NONE (0)
#define DHCP_CHECK_RENEW_FAIL (1)
#define DHCP_CHECK_RENEW_OK (2)
#define DHCP_CHECK_REBIND_FAIL (3)
#define DHCP_CHECK_REBIND_OK (4)
enum
{
padOption = 0,
subnetMask = 1,
timerOffset = 2,
routersOnSubnet = 3,
/* timeServer = 4,
nameServer = 5,*/
dns = 6,
/*logServer = 7,
cookieServer = 8,
lprServer = 9,
impressServer = 10,
resourceLocationServer = 11,*/
hostName = 12,
/*bootFileSize = 13,
meritDumpFile = 14,*/
domainName = 15,
/*swapServer = 16,
rootPath = 17,
extentionsPath = 18,
IPforwarding = 19,
nonLocalSourceRouting = 20,
policyFilter = 21,
maxDgramReasmSize = 22,
defaultIPTTL = 23,
pathMTUagingTimeout = 24,
pathMTUplateauTable = 25,
ifMTU = 26,
allSubnetsLocal = 27,
broadcastAddr = 28,
performMaskDiscovery = 29,
maskSupplier = 30,
performRouterDiscovery = 31,
routerSolicitationAddr = 32,
staticRoute = 33,
trailerEncapsulation = 34,
arpCacheTimeout = 35,
ethernetEncapsulation = 36,
tcpDefaultTTL = 37,
tcpKeepaliveInterval = 38,
tcpKeepaliveGarbage = 39,
nisDomainName = 40,
nisServers = 41,
ntpServers = 42,
vendorSpecificInfo = 43,
netBIOSnameServer = 44,
netBIOSdgramDistServer = 45,
netBIOSnodeType = 46,
netBIOSscope = 47,
xFontServer = 48,
xDisplayManager = 49,*/
dhcpRequestedIPaddr = 50,
dhcpIPaddrLeaseTime = 51,
/*dhcpOptionOverload = 52,*/
dhcpMessageType = 53,
dhcpServerIdentifier = 54,
dhcpParamRequest = 55,
/*dhcpMsg = 56,
dhcpMaxMsgSize = 57,*/
dhcpT1value = 58,
dhcpT2value = 59,
/*dhcpClassIdentifier = 60,*/
dhcpClientIdentifier = 61,
endOption = 255
};
typedef struct _RIP_MSG_FIXED
{
uint8_t op;
uint8_t htype;
uint8_t hlen;
uint8_t hops;
uint32_t xid;
uint16_t secs;
uint16_t flags;
uint8_t ciaddr[4];
uint8_t yiaddr[4];
uint8_t siaddr[4];
uint8_t giaddr[4];
uint8_t chaddr[6];
}RIP_MSG_FIXED;
class DhcpClass {
private:
uint32_t _dhcpInitialTransactionId;
uint32_t _dhcpTransactionId;
uint8_t _dhcpMacAddr[6];
#ifdef __arm__
uint8_t _dhcpLocalIp[4] __attribute__((aligned(4)));
uint8_t _dhcpSubnetMask[4] __attribute__((aligned(4)));
uint8_t _dhcpGatewayIp[4] __attribute__((aligned(4)));
uint8_t _dhcpDhcpServerIp[4] __attribute__((aligned(4)));
uint8_t _dhcpDnsServerIp[4] __attribute__((aligned(4)));
#else
uint8_t _dhcpLocalIp[4];
uint8_t _dhcpSubnetMask[4];
uint8_t _dhcpGatewayIp[4];
uint8_t _dhcpDhcpServerIp[4];
uint8_t _dhcpDnsServerIp[4];
#endif
uint32_t _dhcpLeaseTime;
uint32_t _dhcpT1, _dhcpT2;
signed long _renewInSec;
signed long _rebindInSec;
signed long _lastCheck;
unsigned long _timeout;
unsigned long _responseTimeout;
unsigned long _secTimeout;
uint8_t _dhcp_state;
EthernetUDP _dhcpUdpSocket;
int request_DHCP_lease();
void reset_DHCP_lease();
void presend_DHCP();
void send_DHCP_MESSAGE(uint8_t, uint16_t);
void printByte(char *, uint8_t);
uint8_t parseDHCPResponse(unsigned long responseTimeout, uint32_t& transactionId);
public:
IPAddress getLocalIp();
IPAddress getSubnetMask();
IPAddress getGatewayIp();
IPAddress getDhcpServerIp();
IPAddress getDnsServerIp();
int beginWithDHCP(uint8_t *, unsigned long timeout = 60000, unsigned long responseTimeout = 4000);
int checkLease();
};
#endif

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// Arduino DNS client for WizNet5100-based Ethernet shield
// (c) Copyright 2009-2010 MCQN Ltd.
// Released under Apache License, version 2.0
#include "w5100.h"
#include "EthernetUdp.h"
#include "util.h"
#include "Dns.h"
#include <string.h>
//#include <stdlib.h>
#include "Arduino.h"
#define SOCKET_NONE 255
// Various flags and header field values for a DNS message
#define UDP_HEADER_SIZE 8
#define DNS_HEADER_SIZE 12
#define TTL_SIZE 4
#define QUERY_FLAG (0)
#define RESPONSE_FLAG (1<<15)
#define QUERY_RESPONSE_MASK (1<<15)
#define OPCODE_STANDARD_QUERY (0)
#define OPCODE_INVERSE_QUERY (1<<11)
#define OPCODE_STATUS_REQUEST (2<<11)
#define OPCODE_MASK (15<<11)
#define AUTHORITATIVE_FLAG (1<<10)
#define TRUNCATION_FLAG (1<<9)
#define RECURSION_DESIRED_FLAG (1<<8)
#define RECURSION_AVAILABLE_FLAG (1<<7)
#define RESP_NO_ERROR (0)
#define RESP_FORMAT_ERROR (1)
#define RESP_SERVER_FAILURE (2)
#define RESP_NAME_ERROR (3)
#define RESP_NOT_IMPLEMENTED (4)
#define RESP_REFUSED (5)
#define RESP_MASK (15)
#define TYPE_A (0x0001)
#define CLASS_IN (0x0001)
#define LABEL_COMPRESSION_MASK (0xC0)
// Port number that DNS servers listen on
#define DNS_PORT 53
// Possible return codes from ProcessResponse
#define SUCCESS 1
#define TIMED_OUT -1
#define INVALID_SERVER -2
#define TRUNCATED -3
#define INVALID_RESPONSE -4
void DNSClient::begin(const IPAddress& aDNSServer)
{
iDNSServer = aDNSServer;
iRequestId = 0;
}
int DNSClient::inet_aton(const char* aIPAddrString, IPAddress& aResult)
{
// See if we've been given a valid IP address
const char* p =aIPAddrString;
while (*p &&
( (*p == '.') || (*p >= '0') || (*p <= '9') ))
{
p++;
}
if (*p == '\0')
{
// It's looking promising, we haven't found any invalid characters
p = aIPAddrString;
int segment =0;
int segmentValue =0;
while (*p && (segment < 4))
{
if (*p == '.')
{
// We've reached the end of a segment
if (segmentValue > 255)
{
// You can't have IP address segments that don't fit in a byte
return 0;
}
else
{
aResult[segment] = (byte)segmentValue;
segment++;
segmentValue = 0;
}
}
else
{
// Next digit
segmentValue = (segmentValue*10)+(*p - '0');
}
p++;
}
// We've reached the end of address, but there'll still be the last
// segment to deal with
if ((segmentValue > 255) || (segment > 3))
{
// You can't have IP address segments that don't fit in a byte,
// or more than four segments
return 0;
}
else
{
aResult[segment] = (byte)segmentValue;
return 1;
}
}
else
{
return 0;
}
}
int DNSClient::getHostByName(const char* aHostname, IPAddress& aResult)
{
int ret =0;
// See if it's a numeric IP address
if (inet_aton(aHostname, aResult))
{
// It is, our work here is done
return 1;
}
// Check we've got a valid DNS server to use
if (iDNSServer == INADDR_NONE)
{
return INVALID_SERVER;
}
// Find a socket to use
if (iUdp.begin(1024+(millis() & 0xF)) == 1)
{
// Try up to three times
int retries = 0;
// while ((retries < 3) && (ret <= 0))
{
// Send DNS request
ret = iUdp.beginPacket(iDNSServer, DNS_PORT);
if (ret != 0)
{
// Now output the request data
ret = BuildRequest(aHostname);
if (ret != 0)
{
// And finally send the request
ret = iUdp.endPacket();
if (ret != 0)
{
// Now wait for a response
int wait_retries = 0;
ret = TIMED_OUT;
while ((wait_retries < 3) && (ret == TIMED_OUT))
{
ret = ProcessResponse(5000, aResult);
wait_retries++;
}
}
}
}
retries++;
}
// We're done with the socket now
iUdp.stop();
}
return ret;
}
uint16_t DNSClient::BuildRequest(const char* aName)
{
// Build header
// 1 1 1 1 1 1
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// | ID |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// |QR| Opcode |AA|TC|RD|RA| Z | RCODE |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// | QDCOUNT |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// | ANCOUNT |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// | NSCOUNT |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// | ARCOUNT |
// +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
// As we only support one request at a time at present, we can simplify
// some of this header
iRequestId = millis(); // generate a random ID
uint16_t twoByteBuffer;
// FIXME We should also check that there's enough space available to write to, rather
// FIXME than assume there's enough space (as the code does at present)
iUdp.write((uint8_t*)&iRequestId, sizeof(iRequestId));
twoByteBuffer = htons(QUERY_FLAG | OPCODE_STANDARD_QUERY | RECURSION_DESIRED_FLAG);
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
twoByteBuffer = htons(1); // One question record
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
twoByteBuffer = 0; // Zero answer records
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
// and zero additional records
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
// Build question
const char* start =aName;
const char* end =start;
uint8_t len;
// Run through the name being requested
while (*end)
{
// Find out how long this section of the name is
end = start;
while (*end && (*end != '.') )
{
end++;
}
if (end-start > 0)
{
// Write out the size of this section
len = end-start;
iUdp.write(&len, sizeof(len));
// And then write out the section
iUdp.write((uint8_t*)start, end-start);
}
start = end+1;
}
// We've got to the end of the question name, so
// terminate it with a zero-length section
len = 0;
iUdp.write(&len, sizeof(len));
// Finally the type and class of question
twoByteBuffer = htons(TYPE_A);
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
twoByteBuffer = htons(CLASS_IN); // Internet class of question
iUdp.write((uint8_t*)&twoByteBuffer, sizeof(twoByteBuffer));
// Success! Everything buffered okay
return 1;
}
uint16_t DNSClient::ProcessResponse(uint16_t aTimeout, IPAddress& aAddress)
{
uint32_t startTime = millis();
// Wait for a response packet
while(iUdp.parsePacket() <= 0)
{
if((millis() - startTime) > aTimeout)
return TIMED_OUT;
delay(50);
}
// We've had a reply!
// Read the UDP header
uint8_t header[DNS_HEADER_SIZE]; // Enough space to reuse for the DNS header
// Check that it's a response from the right server and the right port
if ( (iDNSServer != iUdp.remoteIP()) ||
(iUdp.remotePort() != DNS_PORT) )
{
// It's not from who we expected
return INVALID_SERVER;
}
// Read through the rest of the response
if (iUdp.available() < DNS_HEADER_SIZE)
{
return TRUNCATED;
}
iUdp.read(header, DNS_HEADER_SIZE);
uint16_t header_flags = htons(*((uint16_t*)&header[2]));
// Check that it's a response to this request
if ( ( iRequestId != (*((uint16_t*)&header[0])) ) ||
((header_flags & QUERY_RESPONSE_MASK) != (uint16_t)RESPONSE_FLAG) )
{
// Mark the entire packet as read
iUdp.flush();
return INVALID_RESPONSE;
}
// Check for any errors in the response (or in our request)
// although we don't do anything to get round these
if ( (header_flags & TRUNCATION_FLAG) || (header_flags & RESP_MASK) )
{
// Mark the entire packet as read
iUdp.flush();
return -5; //INVALID_RESPONSE;
}
// And make sure we've got (at least) one answer
uint16_t answerCount = htons(*((uint16_t*)&header[6]));
if (answerCount == 0 )
{
// Mark the entire packet as read
iUdp.flush();
return -6; //INVALID_RESPONSE;
}
// Skip over any questions
for (uint16_t i =0; i < htons(*((uint16_t*)&header[4])); i++)
{
// Skip over the name
uint8_t len;
do
{
iUdp.read(&len, sizeof(len));
if (len > 0)
{
// Don't need to actually read the data out for the string, just
// advance ptr to beyond it
while(len--)
{
iUdp.read(); // we don't care about the returned byte
}
}
} while (len != 0);
// Now jump over the type and class
for (int i =0; i < 4; i++)
{
iUdp.read(); // we don't care about the returned byte
}
}
// Now we're up to the bit we're interested in, the answer
// There might be more than one answer (although we'll just use the first
// type A answer) and some authority and additional resource records but
// we're going to ignore all of them.
for (uint16_t i =0; i < answerCount; i++)
{
// Skip the name
uint8_t len;
do
{
iUdp.read(&len, sizeof(len));
if ((len & LABEL_COMPRESSION_MASK) == 0)
{
// It's just a normal label
if (len > 0)
{
// And it's got a length
// Don't need to actually read the data out for the string,
// just advance ptr to beyond it
while(len--)
{
iUdp.read(); // we don't care about the returned byte
}
}
}
else
{
// This is a pointer to a somewhere else in the message for the
// rest of the name. We don't care about the name, and RFC1035
// says that a name is either a sequence of labels ended with a
// 0 length octet or a pointer or a sequence of labels ending in
// a pointer. Either way, when we get here we're at the end of
// the name
// Skip over the pointer
iUdp.read(); // we don't care about the returned byte
// And set len so that we drop out of the name loop
len = 0;
}
} while (len != 0);
// Check the type and class
uint16_t answerType;
uint16_t answerClass;
iUdp.read((uint8_t*)&answerType, sizeof(answerType));
iUdp.read((uint8_t*)&answerClass, sizeof(answerClass));
// Ignore the Time-To-Live as we don't do any caching
for (int i =0; i < TTL_SIZE; i++)
{
iUdp.read(); // we don't care about the returned byte
}
// And read out the length of this answer
// Don't need header_flags anymore, so we can reuse it here
iUdp.read((uint8_t*)&header_flags, sizeof(header_flags));
if ( (htons(answerType) == TYPE_A) && (htons(answerClass) == CLASS_IN) )
{
if (htons(header_flags) != 4)
{
// It's a weird size
// Mark the entire packet as read
iUdp.flush();
return -9;//INVALID_RESPONSE;
}
iUdp.read(aAddress.raw_address(), 4);
return SUCCESS;
}
else
{
// This isn't an answer type we're after, move onto the next one
for (uint16_t i =0; i < htons(header_flags); i++)
{
iUdp.read(); // we don't care about the returned byte
}
}
}
// Mark the entire packet as read
iUdp.flush();
// If we get here then we haven't found an answer
return -10;//INVALID_RESPONSE;
}

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// Arduino DNS client for WizNet5100-based Ethernet shield
// (c) Copyright 2009-2010 MCQN Ltd.
// Released under Apache License, version 2.0
#ifndef DNSClient_h
#define DNSClient_h
#include <EthernetUdp.h>
class DNSClient
{
public:
// ctor
void begin(const IPAddress& aDNSServer);
/** Convert a numeric IP address string into a four-byte IP address.
@param aIPAddrString IP address to convert
@param aResult IPAddress structure to store the returned IP address
@result 1 if aIPAddrString was successfully converted to an IP address,
else error code
*/
int inet_aton(const char *aIPAddrString, IPAddress& aResult);
/** Resolve the given hostname to an IP address.
@param aHostname Name to be resolved
@param aResult IPAddress structure to store the returned IP address
@result 1 if aIPAddrString was successfully converted to an IP address,
else error code
*/
int getHostByName(const char* aHostname, IPAddress& aResult);
protected:
uint16_t BuildRequest(const char* aName);
uint16_t ProcessResponse(uint16_t aTimeout, IPAddress& aAddress);
IPAddress iDNSServer;
uint16_t iRequestId;
EthernetUDP iUdp;
};
#endif

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#include "w5100.h"
#include "Ethernet.h"
#include "Dhcp.h"
// XXX: don't make assumptions about the value of MAX_SOCK_NUM.
uint8_t EthernetClass::_state[MAX_SOCK_NUM] = {
0, 0, 0, 0 };
uint16_t EthernetClass::_server_port[MAX_SOCK_NUM] = {
0, 0, 0, 0 };
int EthernetClass::begin(uint8_t *mac_address)
{
static DhcpClass s_dhcp;
_dhcp = &s_dhcp;
// Initialise the basic info
W5100.init();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.setMACAddress(mac_address);
W5100.setIPAddress(IPAddress(0,0,0,0).raw_address());
SPI.endTransaction();
// Now try to get our config info from a DHCP server
int ret = _dhcp->beginWithDHCP(mac_address);
if(ret == 1)
{
// We've successfully found a DHCP server and got our configuration info, so set things
// accordingly
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
SPI.endTransaction();
_dnsServerAddress = _dhcp->getDnsServerIp();
}
return ret;
}
void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip)
{
// Assume the DNS server will be the machine on the same network as the local IP
// but with last octet being '1'
IPAddress dns_server = local_ip;
dns_server[3] = 1;
begin(mac_address, local_ip, dns_server);
}
void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server)
{
// Assume the gateway will be the machine on the same network as the local IP
// but with last octet being '1'
IPAddress gateway = local_ip;
gateway[3] = 1;
begin(mac_address, local_ip, dns_server, gateway);
}
void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway)
{
IPAddress subnet(255, 255, 255, 0);
begin(mac_address, local_ip, dns_server, gateway, subnet);
}
void EthernetClass::begin(uint8_t *mac, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet)
{
W5100.init();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.setMACAddress(mac);
W5100.setIPAddress(local_ip._address);
W5100.setGatewayIp(gateway._address);
W5100.setSubnetMask(subnet._address);
SPI.endTransaction();
_dnsServerAddress = dns_server;
}
int EthernetClass::maintain(){
int rc = DHCP_CHECK_NONE;
if(_dhcp != NULL){
//we have a pointer to dhcp, use it
rc = _dhcp->checkLease();
switch ( rc ){
case DHCP_CHECK_NONE:
//nothing done
break;
case DHCP_CHECK_RENEW_OK:
case DHCP_CHECK_REBIND_OK:
//we might have got a new IP.
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
SPI.endTransaction();
_dnsServerAddress = _dhcp->getDnsServerIp();
break;
default:
//this is actually a error, it will retry though
break;
}
}
return rc;
}
IPAddress EthernetClass::localIP()
{
IPAddress ret;
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.getIPAddress(ret.raw_address());
SPI.endTransaction();
return ret;
}
IPAddress EthernetClass::subnetMask()
{
IPAddress ret;
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.getSubnetMask(ret.raw_address());
SPI.endTransaction();
return ret;
}
IPAddress EthernetClass::gatewayIP()
{
IPAddress ret;
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.getGatewayIp(ret.raw_address());
SPI.endTransaction();
return ret;
}
IPAddress EthernetClass::dnsServerIP()
{
return _dnsServerAddress;
}
EthernetClass Ethernet;

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#ifndef ethernet_h
#define ethernet_h
#include <inttypes.h>
//#include "w5100.h"
#include "IPAddress.h"
#include "EthernetClient.h"
#include "EthernetServer.h"
#include "Dhcp.h"
#define MAX_SOCK_NUM 4
class EthernetClass {
private:
IPAddress _dnsServerAddress;
DhcpClass* _dhcp;
public:
static uint8_t _state[MAX_SOCK_NUM];
static uint16_t _server_port[MAX_SOCK_NUM];
// Initialise the Ethernet shield to use the provided MAC address and gain the rest of the
// configuration through DHCP.
// Returns 0 if the DHCP configuration failed, and 1 if it succeeded
int begin(uint8_t *mac_address);
void begin(uint8_t *mac_address, IPAddress local_ip);
void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server);
void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway);
void begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet);
int maintain();
IPAddress localIP();
IPAddress subnetMask();
IPAddress gatewayIP();
IPAddress dnsServerIP();
friend class EthernetClient;
friend class EthernetServer;
};
extern EthernetClass Ethernet;
#endif

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#include "w5100.h"
#include "socket.h"
extern "C" {
#include "string.h"
}
#include "Arduino.h"
#include "Ethernet.h"
#include "EthernetClient.h"
#include "EthernetServer.h"
#include "Dns.h"
uint16_t EthernetClient::_srcport = 1024;
EthernetClient::EthernetClient() : _sock(MAX_SOCK_NUM) {
}
EthernetClient::EthernetClient(uint8_t sock) : _sock(sock) {
}
int EthernetClient::connect(const char* host, uint16_t port) {
// Look up the host first
int ret = 0;
DNSClient dns;
IPAddress remote_addr;
dns.begin(Ethernet.dnsServerIP());
ret = dns.getHostByName(host, remote_addr);
if (ret == 1) {
return connect(remote_addr, port);
} else {
return ret;
}
}
int EthernetClient::connect(IPAddress ip, uint16_t port) {
if (_sock != MAX_SOCK_NUM)
return 0;
for (int i = 0; i < MAX_SOCK_NUM; i++) {
uint8_t s = socketStatus(i);
if (s == SnSR::CLOSED || s == SnSR::FIN_WAIT || s == SnSR::CLOSE_WAIT) {
_sock = i;
break;
}
}
if (_sock == MAX_SOCK_NUM)
return 0;
_srcport++;
if (_srcport == 0) _srcport = 1024;
socket(_sock, SnMR::TCP, _srcport, 0);
if (!::connect(_sock, rawIPAddress(ip), port)) {
_sock = MAX_SOCK_NUM;
return 0;
}
while (status() != SnSR::ESTABLISHED) {
delay(1);
if (status() == SnSR::CLOSED) {
_sock = MAX_SOCK_NUM;
return 0;
}
}
return 1;
}
size_t EthernetClient::write(uint8_t b) {
return write(&b, 1);
}
size_t EthernetClient::write(const uint8_t *buf, size_t size) {
if (_sock == MAX_SOCK_NUM) {
setWriteError();
return 0;
}
if (!send(_sock, buf, size)) {
setWriteError();
return 0;
}
return size;
}
int EthernetClient::available() {
if (_sock != MAX_SOCK_NUM)
return recvAvailable(_sock);
return 0;
}
int EthernetClient::read() {
uint8_t b;
if ( recv(_sock, &b, 1) > 0 )
{
// recv worked
return b;
}
else
{
// No data available
return -1;
}
}
int EthernetClient::read(uint8_t *buf, size_t size) {
return recv(_sock, buf, size);
}
int EthernetClient::peek() {
uint8_t b;
// Unlike recv, peek doesn't check to see if there's any data available, so we must
if (!available())
return -1;
::peek(_sock, &b);
return b;
}
void EthernetClient::flush() {
while (available())
read();
}
void EthernetClient::stop() {
if (_sock == MAX_SOCK_NUM)
return;
// attempt to close the connection gracefully (send a FIN to other side)
disconnect(_sock);
unsigned long start = millis();
// wait a second for the connection to close
while (status() != SnSR::CLOSED && millis() - start < 1000)
delay(1);
// if it hasn't closed, close it forcefully
if (status() != SnSR::CLOSED)
close(_sock);
EthernetClass::_server_port[_sock] = 0;
_sock = MAX_SOCK_NUM;
}
uint8_t EthernetClient::connected() {
if (_sock == MAX_SOCK_NUM) return 0;
uint8_t s = status();
return !(s == SnSR::LISTEN || s == SnSR::CLOSED || s == SnSR::FIN_WAIT ||
(s == SnSR::CLOSE_WAIT && !available()));
}
uint8_t EthernetClient::status() {
if (_sock == MAX_SOCK_NUM) return SnSR::CLOSED;
return socketStatus(_sock);
}
// the next function allows us to use the client returned by
// EthernetServer::available() as the condition in an if-statement.
EthernetClient::operator bool() {
return _sock != MAX_SOCK_NUM;
}

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#ifndef ethernetclient_h
#define ethernetclient_h
#include "Arduino.h"
#include "Print.h"
#include "Client.h"
#include "IPAddress.h"
class EthernetClient : public Client {
public:
EthernetClient();
EthernetClient(uint8_t sock);
uint8_t status();
virtual int connect(IPAddress ip, uint16_t port);
virtual int connect(const char *host, uint16_t port);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
virtual int available();
virtual int read();
virtual int read(uint8_t *buf, size_t size);
virtual int peek();
virtual void flush();
virtual void stop();
virtual uint8_t connected();
virtual operator bool();
friend class EthernetServer;
using Print::write;
private:
static uint16_t _srcport;
uint8_t _sock;
};
#endif

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#include "w5100.h"
#include "socket.h"
extern "C" {
#include "string.h"
}
#include "Ethernet.h"
#include "EthernetClient.h"
#include "EthernetServer.h"
EthernetServer::EthernetServer(uint16_t port)
{
_port = port;
}
void EthernetServer::begin()
{
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
EthernetClient client(sock);
if (client.status() == SnSR::CLOSED) {
socket(sock, SnMR::TCP, _port, 0);
listen(sock);
EthernetClass::_server_port[sock] = _port;
break;
}
}
}
void EthernetServer::accept()
{
int listening = 0;
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
EthernetClient client(sock);
if (EthernetClass::_server_port[sock] == _port) {
if (client.status() == SnSR::LISTEN) {
listening = 1;
}
else if (client.status() == SnSR::CLOSE_WAIT && !client.available()) {
client.stop();
}
}
}
if (!listening) {
begin();
}
}
EthernetClient EthernetServer::available()
{
accept();
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
EthernetClient client(sock);
if (EthernetClass::_server_port[sock] == _port &&
(client.status() == SnSR::ESTABLISHED ||
client.status() == SnSR::CLOSE_WAIT)) {
if (client.available()) {
// XXX: don't always pick the lowest numbered socket.
return client;
}
}
}
return EthernetClient(MAX_SOCK_NUM);
}
size_t EthernetServer::write(uint8_t b)
{
return write(&b, 1);
}
size_t EthernetServer::write(const uint8_t *buffer, size_t size)
{
size_t n = 0;
accept();
for (int sock = 0; sock < MAX_SOCK_NUM; sock++) {
EthernetClient client(sock);
if (EthernetClass::_server_port[sock] == _port &&
client.status() == SnSR::ESTABLISHED) {
n += client.write(buffer, size);
}
}
return n;
}

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#ifndef ethernetserver_h
#define ethernetserver_h
#include "Server.h"
class EthernetClient;
class EthernetServer :
public Server {
private:
uint16_t _port;
void accept();
public:
EthernetServer(uint16_t);
EthernetClient available();
virtual void begin();
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
using Print::write;
};
#endif

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/*
* Udp.cpp: Library to send/receive UDP packets with the Arduino ethernet shield.
* This version only offers minimal wrapping of socket.c/socket.h
* Drop Udp.h/.cpp into the Ethernet library directory at hardware/libraries/Ethernet/
*
* MIT License:
* Copyright (c) 2008 Bjoern Hartmann
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* bjoern@cs.stanford.edu 12/30/2008
*/
#include "w5100.h"
#include "socket.h"
#include "Ethernet.h"
#include "Udp.h"
#include "Dns.h"
/* Constructor */
EthernetUDP::EthernetUDP() : _sock(MAX_SOCK_NUM) {}
/* Start EthernetUDP socket, listening at local port PORT */
uint8_t EthernetUDP::begin(uint16_t port) {
if (_sock != MAX_SOCK_NUM)
return 0;
for (int i = 0; i < MAX_SOCK_NUM; i++) {
uint8_t s = socketStatus(i);
if (s == SnSR::CLOSED || s == SnSR::FIN_WAIT) {
_sock = i;
break;
}
}
if (_sock == MAX_SOCK_NUM)
return 0;
_port = port;
_remaining = 0;
socket(_sock, SnMR::UDP, _port, 0);
return 1;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int EthernetUDP::available() {
return _remaining;
}
/* Release any resources being used by this EthernetUDP instance */
void EthernetUDP::stop()
{
if (_sock == MAX_SOCK_NUM)
return;
close(_sock);
EthernetClass::_server_port[_sock] = 0;
_sock = MAX_SOCK_NUM;
}
int EthernetUDP::beginPacket(const char *host, uint16_t port)
{
// Look up the host first
int ret = 0;
DNSClient dns;
IPAddress remote_addr;
dns.begin(Ethernet.dnsServerIP());
ret = dns.getHostByName(host, remote_addr);
if (ret == 1) {
return beginPacket(remote_addr, port);
} else {
return ret;
}
}
int EthernetUDP::beginPacket(IPAddress ip, uint16_t port)
{
_offset = 0;
return startUDP(_sock, rawIPAddress(ip), port);
}
int EthernetUDP::endPacket()
{
return sendUDP(_sock);
}
size_t EthernetUDP::write(uint8_t byte)
{
return write(&byte, 1);
}
size_t EthernetUDP::write(const uint8_t *buffer, size_t size)
{
uint16_t bytes_written = bufferData(_sock, _offset, buffer, size);
_offset += bytes_written;
return bytes_written;
}
int EthernetUDP::parsePacket()
{
// discard any remaining bytes in the last packet
flush();
if (recvAvailable(_sock) > 0)
{
//HACK - hand-parse the UDP packet using TCP recv method
uint8_t tmpBuf[8];
int ret =0;
//read 8 header bytes and get IP and port from it
ret = recv(_sock,tmpBuf,8);
if (ret > 0)
{
_remoteIP = tmpBuf;
_remotePort = tmpBuf[4];
_remotePort = (_remotePort << 8) + tmpBuf[5];
_remaining = tmpBuf[6];
_remaining = (_remaining << 8) + tmpBuf[7];
// When we get here, any remaining bytes are the data
ret = _remaining;
}
return ret;
}
// There aren't any packets available
return 0;
}
int EthernetUDP::read()
{
uint8_t byte;
if ((_remaining > 0) && (recv(_sock, &byte, 1) > 0))
{
// We read things without any problems
_remaining--;
return byte;
}
// If we get here, there's no data available
return -1;
}
int EthernetUDP::read(unsigned char* buffer, size_t len)
{
if (_remaining > 0)
{
int got;
if (_remaining <= len)
{
// data should fit in the buffer
got = recv(_sock, buffer, _remaining);
}
else
{
// too much data for the buffer,
// grab as much as will fit
got = recv(_sock, buffer, len);
}
if (got > 0)
{
_remaining -= got;
return got;
}
}
// If we get here, there's no data available or recv failed
return -1;
}
int EthernetUDP::peek()
{
uint8_t b;
// Unlike recv, peek doesn't check to see if there's any data available, so we must.
// If the user hasn't called parsePacket yet then return nothing otherwise they
// may get the UDP header
if (!_remaining)
return -1;
::peek(_sock, &b);
return b;
}
void EthernetUDP::flush()
{
// could this fail (loop endlessly) if _remaining > 0 and recv in read fails?
// should only occur if recv fails after telling us the data is there, lets
// hope the w5100 always behaves :)
while (_remaining)
{
read();
}
}

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/*
* Udp.cpp: Library to send/receive UDP packets with the Arduino ethernet shield.
* This version only offers minimal wrapping of socket.c/socket.h
* Drop Udp.h/.cpp into the Ethernet library directory at hardware/libraries/Ethernet/
*
* NOTE: UDP is fast, but has some important limitations (thanks to Warren Gray for mentioning these)
* 1) UDP does not guarantee the order in which assembled UDP packets are received. This
* might not happen often in practice, but in larger network topologies, a UDP
* packet can be received out of sequence.
* 2) UDP does not guard against lost packets - so packets *can* disappear without the sender being
* aware of it. Again, this may not be a concern in practice on small local networks.
* For more information, see http://www.cafeaulait.org/course/week12/35.html
*
* MIT License:
* Copyright (c) 2008 Bjoern Hartmann
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* bjoern@cs.stanford.edu 12/30/2008
*/
#ifndef ethernetudp_h
#define ethernetudp_h
#include <Udp.h>
#define UDP_TX_PACKET_MAX_SIZE 24
class EthernetUDP : public UDP {
private:
uint8_t _sock; // socket ID for Wiz5100
uint16_t _port; // local port to listen on
IPAddress _remoteIP; // remote IP address for the incoming packet whilst it's being processed
uint16_t _remotePort; // remote port for the incoming packet whilst it's being processed
uint16_t _offset; // offset into the packet being sent
uint16_t _remaining; // remaining bytes of incoming packet yet to be processed
public:
EthernetUDP(); // Constructor
virtual uint8_t begin(uint16_t); // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
virtual void stop(); // Finish with the UDP socket
// Sending UDP packets
// Start building up a packet to send to the remote host specific in ip and port
// Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
virtual int beginPacket(IPAddress ip, uint16_t port);
// Start building up a packet to send to the remote host specific in host and port
// Returns 1 if successful, 0 if there was a problem resolving the hostname or port
virtual int beginPacket(const char *host, uint16_t port);
// Finish off this packet and send it
// Returns 1 if the packet was sent successfully, 0 if there was an error
virtual int endPacket();
// Write a single byte into the packet
virtual size_t write(uint8_t);
// Write size bytes from buffer into the packet
virtual size_t write(const uint8_t *buffer, size_t size);
using Print::write;
// Start processing the next available incoming packet
// Returns the size of the packet in bytes, or 0 if no packets are available
virtual int parsePacket();
// Number of bytes remaining in the current packet
virtual int available();
// Read a single byte from the current packet
virtual int read();
// Read up to len bytes from the current packet and place them into buffer
// Returns the number of bytes read, or 0 if none are available
virtual int read(unsigned char* buffer, size_t len);
// Read up to len characters from the current packet and place them into buffer
// Returns the number of characters read, or 0 if none are available
virtual int read(char* buffer, size_t len) { return read((unsigned char*)buffer, len); };
// Return the next byte from the current packet without moving on to the next byte
virtual int peek();
virtual void flush(); // Finish reading the current packet
// Return the IP address of the host who sent the current incoming packet
virtual IPAddress remoteIP() { return _remoteIP; };
// Return the port of the host who sent the current incoming packet
virtual uint16_t remotePort() { return _remotePort; };
};
#endif

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#ifndef UTIL_H
#define UTIL_H
#define htons(x) ( (((x)<<8)&0xFF00) | (((x)>>8)&0xFF) )
#define ntohs(x) htons(x)
#define htonl(x) ( ((x)<<24 & 0xFF000000UL) | \
((x)<< 8 & 0x00FF0000UL) | \
((x)>> 8 & 0x0000FF00UL) | \
((x)>>24 & 0x000000FFUL) )
#define ntohl(x) htonl(x)
#endif

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#include "w5100.h"
#include "socket.h"
#if ARDUINO >= 156 || TEENSYDUINO >= 120
extern void yield(void);
#else
#define yield()
#endif
static uint16_t local_port;
/**
* @brief This Socket function initialize the channel in perticular mode, and set the port and wait for W5100 done it.
* @return 1 for success else 0.
*/
uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag)
{
if ((protocol == SnMR::TCP) || (protocol == SnMR::UDP) || (protocol == SnMR::IPRAW) || (protocol == SnMR::MACRAW) || (protocol == SnMR::PPPOE))
{
close(s);
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.writeSnMR(s, protocol | flag);
if (port != 0) {
W5100.writeSnPORT(s, port);
}
else {
local_port++; // if don't set the source port, set local_port number.
W5100.writeSnPORT(s, local_port);
}
W5100.execCmdSn(s, Sock_OPEN);
SPI.endTransaction();
return 1;
}
return 0;
}
uint8_t socketStatus(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
uint8_t status = W5100.readSnSR(s);
SPI.endTransaction();
return status;
}
/**
* @brief This function close the socket and parameter is "s" which represent the socket number
*/
void close(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.execCmdSn(s, Sock_CLOSE);
W5100.writeSnIR(s, 0xFF);
SPI.endTransaction();
}
/**
* @brief This function established the connection for the channel in passive (server) mode. This function waits for the request from the peer.
* @return 1 for success else 0.
*/
uint8_t listen(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
if (W5100.readSnSR(s) != SnSR::INIT) {
SPI.endTransaction();
return 0;
}
W5100.execCmdSn(s, Sock_LISTEN);
SPI.endTransaction();
return 1;
}
/**
* @brief This function established the connection for the channel in Active (client) mode.
* This function waits for the untill the connection is established.
*
* @return 1 for success else 0.
*/
uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port)
{
if
(
((addr[0] == 0xFF) && (addr[1] == 0xFF) && (addr[2] == 0xFF) && (addr[3] == 0xFF)) ||
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
(port == 0x00)
)
return 0;
// set destination IP
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.writeSnDIPR(s, addr);
W5100.writeSnDPORT(s, port);
W5100.execCmdSn(s, Sock_CONNECT);
SPI.endTransaction();
return 1;
}
/**
* @brief This function used for disconnect the socket and parameter is "s" which represent the socket number
* @return 1 for success else 0.
*/
void disconnect(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.execCmdSn(s, Sock_DISCON);
SPI.endTransaction();
}
/**
* @brief This function used to send the data in TCP mode
* @return 1 for success else 0.
*/
uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len)
{
uint8_t status=0;
uint16_t ret=0;
uint16_t freesize=0;
if (len > W5100.SSIZE)
ret = W5100.SSIZE; // check size not to exceed MAX size.
else
ret = len;
// if freebuf is available, start.
do
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
freesize = W5100.getTXFreeSize(s);
status = W5100.readSnSR(s);
SPI.endTransaction();
if ((status != SnSR::ESTABLISHED) && (status != SnSR::CLOSE_WAIT))
{
ret = 0;
break;
}
yield();
}
while (freesize < ret);
// copy data
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.send_data_processing(s, (uint8_t *)buf, ret);
W5100.execCmdSn(s, Sock_SEND);
/* +2008.01 bj */
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
{
/* m2008.01 [bj] : reduce code */
if ( W5100.readSnSR(s) == SnSR::CLOSED )
{
SPI.endTransaction();
close(s);
return 0;
}
SPI.endTransaction();
yield();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
}
/* +2008.01 bj */
W5100.writeSnIR(s, SnIR::SEND_OK);
SPI.endTransaction();
return ret;
}
/**
* @brief This function is an application I/F function which is used to receive the data in TCP mode.
* It continues to wait for data as much as the application wants to receive.
*
* @return received data size for success else -1.
*/
int16_t recv(SOCKET s, uint8_t *buf, int16_t len)
{
// Check how much data is available
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
int16_t ret = W5100.getRXReceivedSize(s);
if ( ret == 0 )
{
// No data available.
uint8_t status = W5100.readSnSR(s);
if ( status == SnSR::LISTEN || status == SnSR::CLOSED || status == SnSR::CLOSE_WAIT )
{
// The remote end has closed its side of the connection, so this is the eof state
ret = 0;
}
else
{
// The connection is still up, but there's no data waiting to be read
ret = -1;
}
}
else if (ret > len)
{
ret = len;
}
if ( ret > 0 )
{
W5100.recv_data_processing(s, buf, ret);
W5100.execCmdSn(s, Sock_RECV);
}
SPI.endTransaction();
return ret;
}
int16_t recvAvailable(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
int16_t ret = W5100.getRXReceivedSize(s);
SPI.endTransaction();
return ret;
}
/**
* @brief Returns the first byte in the receive queue (no checking)
*
* @return
*/
uint16_t peek(SOCKET s, uint8_t *buf)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.recv_data_processing(s, buf, 1, 1);
SPI.endTransaction();
return 1;
}
/**
* @brief This function is an application I/F function which is used to send the data for other then TCP mode.
* Unlike TCP transmission, The peer's destination address and the port is needed.
*
* @return This function return send data size for success else -1.
*/
uint16_t sendto(SOCKET s, const uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t port)
{
uint16_t ret=0;
if (len > W5100.SSIZE) ret = W5100.SSIZE; // check size not to exceed MAX size.
else ret = len;
if
(
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
((port == 0x00)) ||(ret == 0)
)
{
/* +2008.01 [bj] : added return value */
ret = 0;
}
else
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.writeSnDIPR(s, addr);
W5100.writeSnDPORT(s, port);
// copy data
W5100.send_data_processing(s, (uint8_t *)buf, ret);
W5100.execCmdSn(s, Sock_SEND);
/* +2008.01 bj */
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
{
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
{
/* +2008.01 [bj]: clear interrupt */
W5100.writeSnIR(s, (SnIR::SEND_OK | SnIR::TIMEOUT)); /* clear SEND_OK & TIMEOUT */
SPI.endTransaction();
return 0;
}
SPI.endTransaction();
yield();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
}
/* +2008.01 bj */
W5100.writeSnIR(s, SnIR::SEND_OK);
SPI.endTransaction();
}
return ret;
}
/**
* @brief This function is an application I/F function which is used to receive the data in other then
* TCP mode. This function is used to receive UDP, IP_RAW and MAC_RAW mode, and handle the header as well.
*
* @return This function return received data size for success else -1.
*/
uint16_t recvfrom(SOCKET s, uint8_t *buf, uint16_t len, uint8_t *addr, uint16_t *port)
{
uint8_t head[8];
uint16_t data_len=0;
uint16_t ptr=0;
if ( len > 0 )
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
ptr = W5100.readSnRX_RD(s);
switch (W5100.readSnMR(s) & 0x07)
{
case SnMR::UDP :
W5100.read_data(s, ptr, head, 0x08);
ptr += 8;
// read peer's IP address, port number.
addr[0] = head[0];
addr[1] = head[1];
addr[2] = head[2];
addr[3] = head[3];
*port = head[4];
*port = (*port << 8) + head[5];
data_len = head[6];
data_len = (data_len << 8) + head[7];
W5100.read_data(s, ptr, buf, data_len); // data copy.
ptr += data_len;
W5100.writeSnRX_RD(s, ptr);
break;
case SnMR::IPRAW :
W5100.read_data(s, ptr, head, 0x06);
ptr += 6;
addr[0] = head[0];
addr[1] = head[1];
addr[2] = head[2];
addr[3] = head[3];
data_len = head[4];
data_len = (data_len << 8) + head[5];
W5100.read_data(s, ptr, buf, data_len); // data copy.
ptr += data_len;
W5100.writeSnRX_RD(s, ptr);
break;
case SnMR::MACRAW:
W5100.read_data(s,ptr,head,2);
ptr+=2;
data_len = head[0];
data_len = (data_len<<8) + head[1] - 2;
W5100.read_data(s,ptr,buf,data_len);
ptr += data_len;
W5100.writeSnRX_RD(s, ptr);
break;
default :
break;
}
W5100.execCmdSn(s, Sock_RECV);
SPI.endTransaction();
}
return data_len;
}
uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len)
{
uint16_t ret=0;
if (len > W5100.SSIZE)
ret = W5100.SSIZE; // check size not to exceed MAX size.
else
ret = len;
if (ret == 0)
return 0;
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.send_data_processing(s, (uint8_t *)buf, ret);
W5100.execCmdSn(s, Sock_SEND);
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
{
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
{
/* in case of igmp, if send fails, then socket closed */
/* if you want change, remove this code. */
SPI.endTransaction();
close(s);
return 0;
}
SPI.endTransaction();
yield();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
}
W5100.writeSnIR(s, SnIR::SEND_OK);
SPI.endTransaction();
return ret;
}
uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len)
{
uint16_t ret =0;
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
if (len > W5100.getTXFreeSize(s))
{
ret = W5100.getTXFreeSize(s); // check size not to exceed MAX size.
}
else
{
ret = len;
}
W5100.send_data_processing_offset(s, offset, buf, ret);
SPI.endTransaction();
return ret;
}
int startUDP(SOCKET s, uint8_t* addr, uint16_t port)
{
if
(
((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && (addr[3] == 0x00)) ||
((port == 0x00))
)
{
return 0;
}
else
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.writeSnDIPR(s, addr);
W5100.writeSnDPORT(s, port);
SPI.endTransaction();
return 1;
}
}
int sendUDP(SOCKET s)
{
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
W5100.execCmdSn(s, Sock_SEND);
/* +2008.01 bj */
while ( (W5100.readSnIR(s) & SnIR::SEND_OK) != SnIR::SEND_OK )
{
if (W5100.readSnIR(s) & SnIR::TIMEOUT)
{
/* +2008.01 [bj]: clear interrupt */
W5100.writeSnIR(s, (SnIR::SEND_OK|SnIR::TIMEOUT));
SPI.endTransaction();
return 0;
}
SPI.endTransaction();
yield();
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
}
/* +2008.01 bj */
W5100.writeSnIR(s, SnIR::SEND_OK);
SPI.endTransaction();
/* Sent ok */
return 1;
}

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#ifndef _SOCKET_H_
#define _SOCKET_H_
#include "w5100.h"
extern uint8_t socket(SOCKET s, uint8_t protocol, uint16_t port, uint8_t flag); // Opens a socket(TCP or UDP or IP_RAW mode)
extern uint8_t socketStatus(SOCKET s);
extern void close(SOCKET s); // Close socket
extern uint8_t connect(SOCKET s, uint8_t * addr, uint16_t port); // Establish TCP connection (Active connection)
extern void disconnect(SOCKET s); // disconnect the connection
extern uint8_t listen(SOCKET s); // Establish TCP connection (Passive connection)
extern uint16_t send(SOCKET s, const uint8_t * buf, uint16_t len); // Send data (TCP)
extern int16_t recv(SOCKET s, uint8_t * buf, int16_t len); // Receive data (TCP)
extern int16_t recvAvailable(SOCKET s);
extern uint16_t peek(SOCKET s, uint8_t *buf);
extern uint16_t sendto(SOCKET s, const uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t port); // Send data (UDP/IP RAW)
extern uint16_t recvfrom(SOCKET s, uint8_t * buf, uint16_t len, uint8_t * addr, uint16_t *port); // Receive data (UDP/IP RAW)
extern uint16_t igmpsend(SOCKET s, const uint8_t * buf, uint16_t len);
// Functions to allow buffered UDP send (i.e. where the UDP datagram is built up over a
// number of calls before being sent
/*
@brief This function sets up a UDP datagram, the data for which will be provided by one
or more calls to bufferData and then finally sent with sendUDP.
@return 1 if the datagram was successfully set up, or 0 if there was an error
*/
extern int startUDP(SOCKET s, uint8_t* addr, uint16_t port);
/*
@brief This function copies up to len bytes of data from buf into a UDP datagram to be
sent later by sendUDP. Allows datagrams to be built up from a series of bufferData calls.
@return Number of bytes successfully buffered
*/
uint16_t bufferData(SOCKET s, uint16_t offset, const uint8_t* buf, uint16_t len);
/*
@brief Send a UDP datagram built up from a sequence of startUDP followed by one or more
calls to bufferData.
@return 1 if the datagram was successfully sent, or 0 if there was an error
*/
int sendUDP(SOCKET s);
#endif
/* _SOCKET_H_ */

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/*
* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*/
#include <stdio.h>
#include <string.h>
#include <avr/interrupt.h>
#if defined(__arm__)
#include "SPIFIFO.h"
#ifdef HAS_SPIFIFO
#define USE_SPIFIFO
#endif
#endif
// The W5200 really does require a proper reset pulse!
// Its SPI state machine remembers the previously started
// burst transfer, even after SS is deasserted. Wiznet's
// documentation does not mention this very unfortunate
// fact, which means you to really must reset the chip if
// it may have ever heard an partial transfer (eg, from a
// previous run before clicking Upload in Arduino) or if
// its SS and SCK pins are ever left floating.
#define W5200_RESET_PIN 9
#define W5200_SS_PIN 10
#include "Arduino.h"
#include "w5100.h"
// W5100 controller instance
uint16_t W5100Class::SBASE[MAX_SOCK_NUM];
uint16_t W5100Class::RBASE[MAX_SOCK_NUM];
uint16_t W5100Class::CH_BASE;
uint16_t W5100Class::SSIZE;
uint16_t W5100Class::SMASK;
uint8_t W5100Class::chip;
W5100Class W5100;
uint8_t W5100Class::init(void)
{
uint16_t TXBUF_BASE, RXBUF_BASE;
uint8_t i;
delay(200);
//Serial.println("w5100 init");
#ifdef USE_SPIFIFO
SPI.begin();
SPIFIFO.begin(W5200_SS_PIN, SPI_CLOCK_12MHz); // W5100 is 14 MHz max
#else
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV2);
initSS();
#endif
SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
if (isW5100()) {
CH_BASE = 0x0400;
SSIZE = 2048;
SMASK = 0x07FF;
TXBUF_BASE = 0x4000;
RXBUF_BASE = 0x6000;
writeTMSR(0x55);
writeRMSR(0x55);
} else if (isW5200()) {
CH_BASE = 0x4000;
SSIZE = 4096;
SMASK = 0x0FFF;
TXBUF_BASE = 0x8000;
RXBUF_BASE = 0xC000;
for (i=0; i<MAX_SOCK_NUM; i++) {
writeSnRX_SIZE(i, SSIZE >> 10);
writeSnTX_SIZE(i, SSIZE >> 10);
}
for (; i<8; i++) {
writeSnRX_SIZE(i, 0);
writeSnTX_SIZE(i, 0);
}
} else {
//Serial.println("no chip :-(");
chip = 0;
SPI.endTransaction();
return 0; // no known chip is responding :-(
}
for (int i=0; i<MAX_SOCK_NUM; i++) {
SBASE[i] = TXBUF_BASE + SSIZE * i;
RBASE[i] = RXBUF_BASE + SSIZE * i;
}
SPI.endTransaction();
return 1; // successful init
}
void W5100Class::reset(void)
{
uint16_t count=0;
//Serial.println("W5100 reset");
writeMR(1<<RST);
while (++count < 20) {
uint8_t mr = readMR();
//Serial.print("mr=");
//Serial.println(mr, HEX);
if (mr == 0) break;
delay(1);
}
}
uint8_t W5100Class::isW5100(void)
{
chip = 51;
//Serial.println("W5100 detect W5100 chip");
reset();
writeMR(0x10);
if (readMR() != 0x10) return 0;
writeMR(0x12);
if (readMR() != 0x12) return 0;
writeMR(0x00);
if (readMR() != 0x00) return 0;
//Serial.println("chip is W5100");
return 1;
}
uint8_t W5100Class::isW5200(void)
{
uint8_t mr;
chip = 52;
//Serial.println("W5100 detect W5200 chip");
#ifdef W5200_RESET_PIN
pinMode(W5200_RESET_PIN, OUTPUT);
digitalWrite(W5200_RESET_PIN, LOW);
delay(1);
digitalWrite(W5200_RESET_PIN, HIGH);
delay(150);
#endif
reset();
writeMR(0x08);
mr = readMR();
//Serial.print("mr=");
//Serial.println(mr, HEX);
if (mr != 0x08) return 0;
writeMR(0x10);
mr = readMR();
//Serial.print("mr=");
//Serial.println(mr, HEX);
if (mr != 0x10) return 0;
writeMR(0x00);
mr = readMR();
//Serial.print("mr=");
//Serial.println(mr, HEX);
if (mr != 0x00) return 0;
//Serial.println("chip is W5200");
return 1;
}
uint16_t W5100Class::getTXFreeSize(SOCKET s)
{
uint16_t val=0, val1=0;
do {
val1 = readSnTX_FSR(s);
if (val1 != 0)
val = readSnTX_FSR(s);
}
while (val != val1);
return val;
}
uint16_t W5100Class::getRXReceivedSize(SOCKET s)
{
uint16_t val=0,val1=0;
do {
val1 = readSnRX_RSR(s);
if (val1 != 0)
val = readSnRX_RSR(s);
}
while (val != val1);
return val;
}
void W5100Class::send_data_processing(SOCKET s, const uint8_t *data, uint16_t len)
{
// This is same as having no offset in a call to send_data_processing_offset
send_data_processing_offset(s, 0, data, len);
}
void W5100Class::send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len)
{
uint16_t ptr = readSnTX_WR(s);
ptr += data_offset;
uint16_t offset = ptr & SMASK;
uint16_t dstAddr = offset + SBASE[s];
if (offset + len > SSIZE)
{
// Wrap around circular buffer
uint16_t size = SSIZE - offset;
write(dstAddr, data, size);
write(SBASE[s], data + size, len - size);
}
else {
write(dstAddr, data, len);
}
ptr += len;
writeSnTX_WR(s, ptr);
}
void W5100Class::recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek)
{
uint16_t ptr;
ptr = readSnRX_RD(s);
read_data(s, ptr, data, len);
if (!peek)
{
ptr += len;
writeSnRX_RD(s, ptr);
}
}
void W5100Class::read_data(SOCKET s, uint16_t src, volatile uint8_t *dst, uint16_t len)
{
uint16_t size;
uint16_t src_mask;
uint16_t src_ptr;
src_mask = (uint16_t)src & SMASK;
src_ptr = RBASE[s] + src_mask;
if( (src_mask + len) > SSIZE )
{
size = SSIZE - src_mask;
read(src_ptr, (uint8_t *)dst, size);
dst += size;
read(RBASE[s], (uint8_t *) dst, len - size);
}
else
read(src_ptr, (uint8_t *) dst, len);
}
#ifdef USE_SPIFIFO
uint16_t W5100Class::write(uint16_t addr, const uint8_t *buf, uint16_t len)
{
uint32_t i;
if (chip == 51) {
for (i=0; i<len; i++) {
SPIFIFO.write16(0xF000 | (addr >> 8), SPI_CONTINUE);
SPIFIFO.write16((addr << 8) | buf[i]);
addr++;
SPIFIFO.read();
SPIFIFO.read();
}
} else {
SPIFIFO.clear();
SPIFIFO.write16(addr, SPI_CONTINUE);
SPIFIFO.write16(len | 0x8000, SPI_CONTINUE);
for (i=0; i<len; i++) {
SPIFIFO.write(buf[i], ((i+1<len) ? SPI_CONTINUE : 0));
SPIFIFO.read();
}
SPIFIFO.read();
SPIFIFO.read();
}
return len;
}
#else
uint16_t W5100Class::write(uint16_t addr, const uint8_t *buf, uint16_t len)
{
if (chip == 51) {
for (uint16_t i=0; i<len; i++) {
setSS();
SPI.transfer(0xF0);
SPI.transfer(addr >> 8);
SPI.transfer(addr & 0xFF);
addr++;
SPI.transfer(buf[i]);
resetSS();
}
} else {
setSS();
SPI.transfer(addr >> 8);
SPI.transfer(addr & 0xFF);
SPI.transfer(((len >> 8) & 0x7F) | 0x80);
SPI.transfer(len & 0xFF);
for (uint16_t i=0; i<len; i++) {
SPI.transfer(buf[i]);
}
resetSS();
}
return len;
}
#endif
#ifdef USE_SPIFIFO
uint16_t W5100Class::read(uint16_t addr, uint8_t *buf, uint16_t len)
{
uint32_t i;
if (chip == 51) {
for (i=0; i<len; i++) {
#if 1
SPIFIFO.write(0x0F, SPI_CONTINUE);
SPIFIFO.write16(addr, SPI_CONTINUE);
addr++;
SPIFIFO.read();
SPIFIFO.write(0);
SPIFIFO.read();
buf[i] = SPIFIFO.read();
#endif
#if 0
// this does not work, but why?
SPIFIFO.write16(0x0F00 | (addr >> 8), SPI_CONTINUE);
SPIFIFO.write16(addr << 8);
addr++;
SPIFIFO.read();
buf[i] = SPIFIFO.read();
#endif
}
} else {
// len = 1: write header, write 1 byte, read
// len = 2: write header, write 2 byte, read
// len = 3,5,7
SPIFIFO.clear();
SPIFIFO.write16(addr, SPI_CONTINUE);
SPIFIFO.write16(len & 0x7FFF, SPI_CONTINUE);
SPIFIFO.read();
if (len == 1) {
// read only 1 byte
SPIFIFO.write(0);
SPIFIFO.read();
*buf = SPIFIFO.read();
} else if (len == 2) {
// read only 2 bytes
SPIFIFO.write16(0);
SPIFIFO.read();
uint32_t val = SPIFIFO.read();
*buf++ = val >> 8;
*buf = val;
} else if ((len & 1)) {
// read 3 or more, odd length
//Serial.print("W5200 read, len=");
//Serial.println(len);
uint32_t count = len / 2;
SPIFIFO.write16(0, SPI_CONTINUE);
SPIFIFO.read();
do {
if (count > 1) SPIFIFO.write16(0, SPI_CONTINUE);
else SPIFIFO.write(0);
uint32_t val = SPIFIFO.read();
//TODO: WebClient_speedtest with READSIZE 7 is
//dramatically faster with this Serial.print(),
//and the 2 above, but not without both. Why?!
//Serial.println(val, HEX);
*buf++ = val >> 8;
*buf++ = val;
} while (--count > 0);
*buf = SPIFIFO.read();
//Serial.println(*buf, HEX);
} else {
// read 4 or more, odd length
//Serial.print("W5200 read, len=");
//Serial.println(len);
uint32_t count = len / 2 - 1;
SPIFIFO.write16(0, SPI_CONTINUE);
SPIFIFO.read();
do {
SPIFIFO.write16(0, (count > 0) ? SPI_CONTINUE : 0);
uint32_t val = SPIFIFO.read();
*buf++ = val >> 8;
*buf++ = val;
} while (--count > 0);
uint32_t val = SPIFIFO.read();
*buf++ = val >> 8;
*buf++ = val;
}
}
return len;
}
#else
uint16_t W5100Class::read(uint16_t addr, uint8_t *buf, uint16_t len)
{
if (chip == 51) {
for (uint16_t i=0; i<len; i++) {
setSS();
SPI.transfer(0x0F);
SPI.transfer(addr >> 8);
SPI.transfer(addr & 0xFF);
addr++;
buf[i] = SPI.transfer(0);
resetSS();
}
} else {
setSS();
SPI.transfer(addr >> 8);
SPI.transfer(addr & 0xFF);
SPI.transfer((len >> 8) & 0x7F);
SPI.transfer(len & 0xFF);
for (uint16_t i=0; i<len; i++) {
buf[i] = SPI.transfer(0);
}
resetSS();
}
return len;
}
#endif
void W5100Class::execCmdSn(SOCKET s, SockCMD _cmd) {
// Send command to socket
writeSnCR(s, _cmd);
// Wait for command to complete
while (readSnCR(s))
;
}

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/*
* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*/
#ifndef W5100_H_INCLUDED
#define W5100_H_INCLUDED
#include <avr/pgmspace.h>
#include <SPI.h>
#define SPI_ETHERNET_SETTINGS SPISettings(14000000, MSBFIRST, SPI_MODE0)
//#define SPI_ETHERNET_SETTINGS SPISettings(8000000, MSBFIRST, SPI_MODE0)
//#define SPI_ETHERNET_SETTINGS SPISettings(4000000, MSBFIRST, SPI_MODE0)
#define MAX_SOCK_NUM 4
typedef uint8_t SOCKET;
class SnMR {
public:
static const uint8_t CLOSE = 0x00;
static const uint8_t TCP = 0x01;
static const uint8_t UDP = 0x02;
static const uint8_t IPRAW = 0x03;
static const uint8_t MACRAW = 0x04;
static const uint8_t PPPOE = 0x05;
static const uint8_t ND = 0x20;
static const uint8_t MULTI = 0x80;
};
enum SockCMD {
Sock_OPEN = 0x01,
Sock_LISTEN = 0x02,
Sock_CONNECT = 0x04,
Sock_DISCON = 0x08,
Sock_CLOSE = 0x10,
Sock_SEND = 0x20,
Sock_SEND_MAC = 0x21,
Sock_SEND_KEEP = 0x22,
Sock_RECV = 0x40
};
class SnIR {
public:
static const uint8_t SEND_OK = 0x10;
static const uint8_t TIMEOUT = 0x08;
static const uint8_t RECV = 0x04;
static const uint8_t DISCON = 0x02;
static const uint8_t CON = 0x01;
};
class SnSR {
public:
static const uint8_t CLOSED = 0x00;
static const uint8_t INIT = 0x13;
static const uint8_t LISTEN = 0x14;
static const uint8_t SYNSENT = 0x15;
static const uint8_t SYNRECV = 0x16;
static const uint8_t ESTABLISHED = 0x17;
static const uint8_t FIN_WAIT = 0x18;
static const uint8_t CLOSING = 0x1A;
static const uint8_t TIME_WAIT = 0x1B;
static const uint8_t CLOSE_WAIT = 0x1C;
static const uint8_t LAST_ACK = 0x1D;
static const uint8_t UDP = 0x22;
static const uint8_t IPRAW = 0x32;
static const uint8_t MACRAW = 0x42;
static const uint8_t PPPOE = 0x5F;
};
class IPPROTO {
public:
static const uint8_t IP = 0;
static const uint8_t ICMP = 1;
static const uint8_t IGMP = 2;
static const uint8_t GGP = 3;
static const uint8_t TCP = 6;
static const uint8_t PUP = 12;
static const uint8_t UDP = 17;
static const uint8_t IDP = 22;
static const uint8_t ND = 77;
static const uint8_t RAW = 255;
};
class W5100Class {
public:
static uint8_t init(void);
/**
* @brief This function is being used for copy the data form Receive buffer of the chip to application buffer.
*
* It calculate the actual physical address where one has to read
* the data from Receive buffer. Here also take care of the condition while it exceed
* the Rx memory uper-bound of socket.
*/
static void read_data(SOCKET s, uint16_t src, volatile uint8_t * dst, uint16_t len);
/**
* @brief This function is being called by send() and sendto() function also.
*
* This function read the Tx write pointer register and after copy the data in buffer update the Tx write pointer
* register. User should read upper byte first and lower byte later to get proper value.
*/
static void send_data_processing(SOCKET s, const uint8_t *data, uint16_t len);
/**
* @brief A copy of send_data_processing that uses the provided ptr for the
* write offset. Only needed for the "streaming" UDP API, where
* a single UDP packet is built up over a number of calls to
* send_data_processing_ptr, because TX_WR doesn't seem to get updated
* correctly in those scenarios
* @param ptr value to use in place of TX_WR. If 0, then the value is read
* in from TX_WR
* @return New value for ptr, to be used in the next call
*/
// FIXME Update documentation
static void send_data_processing_offset(SOCKET s, uint16_t data_offset, const uint8_t *data, uint16_t len);
/**
* @brief This function is being called by recv() also.
*
* This function read the Rx read pointer register
* and after copy the data from receive buffer update the Rx write pointer register.
* User should read upper byte first and lower byte later to get proper value.
*/
static void recv_data_processing(SOCKET s, uint8_t *data, uint16_t len, uint8_t peek = 0);
inline void setGatewayIp(uint8_t * addr) { writeGAR(addr); }
inline void getGatewayIp(uint8_t * addr) { readGAR(addr); }
inline void setSubnetMask(uint8_t * addr) { writeSUBR(addr); }
inline void getSubnetMask(uint8_t * addr) { readSUBR(addr); }
inline void setMACAddress(uint8_t * addr) { writeSHAR(addr); }
inline void getMACAddress(uint8_t * addr) { readSHAR(addr); }
inline void setIPAddress(uint8_t * addr) { writeSIPR(addr); }
inline void getIPAddress(uint8_t * addr) { readSIPR(addr); }
inline void setRetransmissionTime(uint16_t timeout) { writeRTR(timeout); }
inline void setRetransmissionCount(uint8_t retry) { writeRCR(retry); }
static void execCmdSn(SOCKET s, SockCMD _cmd);
static uint16_t getTXFreeSize(SOCKET s);
static uint16_t getRXReceivedSize(SOCKET s);
// W5100 Registers
// ---------------
private:
static uint16_t write(uint16_t addr, const uint8_t *buf, uint16_t len);
static uint8_t write(uint16_t addr, uint8_t data) {
return write(addr, &data, 1);
}
static uint16_t read(uint16_t addr, uint8_t *buf, uint16_t len);
static uint8_t read(uint16_t addr) {
uint8_t data;
read(addr, &data, 1);
return data;
}
#define __GP_REGISTER8(name, address) \
static inline void write##name(uint8_t _data) { \
write(address, _data); \
} \
static inline uint8_t read##name() { \
return read(address); \
}
#define __GP_REGISTER16(name, address) \
static void write##name(uint16_t _data) { \
uint8_t buf[2]; \
buf[0] = _data >> 8; \
buf[1] = _data & 0xFF; \
write(address, buf, 2); \
} \
static uint16_t read##name() { \
uint8_t buf[2]; \
read(address, buf, 2); \
return (buf[0] << 8) | buf[1]; \
}
#define __GP_REGISTER_N(name, address, size) \
static uint16_t write##name(uint8_t *_buff) { \
return write(address, _buff, size); \
} \
static uint16_t read##name(uint8_t *_buff) { \
return read(address, _buff, size); \
}
public:
__GP_REGISTER8 (MR, 0x0000); // Mode
__GP_REGISTER_N(GAR, 0x0001, 4); // Gateway IP address
__GP_REGISTER_N(SUBR, 0x0005, 4); // Subnet mask address
__GP_REGISTER_N(SHAR, 0x0009, 6); // Source MAC address
__GP_REGISTER_N(SIPR, 0x000F, 4); // Source IP address
__GP_REGISTER8 (IR, 0x0015); // Interrupt
__GP_REGISTER8 (IMR, 0x0016); // Interrupt Mask
__GP_REGISTER16(RTR, 0x0017); // Timeout address
__GP_REGISTER8 (RCR, 0x0019); // Retry count
__GP_REGISTER8 (RMSR, 0x001A); // Receive memory size (W5100 only)
__GP_REGISTER8 (TMSR, 0x001B); // Transmit memory size (W5100 only)
__GP_REGISTER8 (PATR, 0x001C); // Authentication type address in PPPoE mode
__GP_REGISTER8 (PTIMER, 0x0028); // PPP LCP Request Timer
__GP_REGISTER8 (PMAGIC, 0x0029); // PPP LCP Magic Number
__GP_REGISTER_N(UIPR, 0x002A, 4); // Unreachable IP address in UDP mode (W5100 only)
__GP_REGISTER16(UPORT, 0x002E); // Unreachable Port address in UDP mode (W5100 only)
#undef __GP_REGISTER8
#undef __GP_REGISTER16
#undef __GP_REGISTER_N
// W5100 Socket registers
// ----------------------
private:
static inline uint8_t readSn(SOCKET s, uint16_t addr) {
return read(CH_BASE + s * CH_SIZE + addr);
}
static inline uint8_t writeSn(SOCKET s, uint16_t addr, uint8_t data) {
return write(CH_BASE + s * CH_SIZE + addr, data);
}
static inline uint16_t readSn(SOCKET s, uint16_t addr, uint8_t *buf, uint16_t len) {
return read(CH_BASE + s * CH_SIZE + addr, buf, len);
}
static inline uint16_t writeSn(SOCKET s, uint16_t addr, uint8_t *buf, uint16_t len) {
return write(CH_BASE + s * CH_SIZE + addr, buf, len);
}
static uint16_t CH_BASE;
static const uint16_t CH_SIZE = 0x0100;
#define __SOCKET_REGISTER8(name, address) \
static inline void write##name(SOCKET _s, uint8_t _data) { \
writeSn(_s, address, _data); \
} \
static inline uint8_t read##name(SOCKET _s) { \
return readSn(_s, address); \
}
#define __SOCKET_REGISTER16(name, address) \
static void write##name(SOCKET _s, uint16_t _data) { \
uint8_t buf[2]; \
buf[0] = _data >> 8; \
buf[1] = _data & 0xFF; \
writeSn(_s, address, buf, 2); \
} \
static uint16_t read##name(SOCKET _s) { \
uint8_t buf[2]; \
readSn(_s, address, buf, 2); \
return (buf[0] << 8) | buf[1]; \
}
#define __SOCKET_REGISTER_N(name, address, size) \
static uint16_t write##name(SOCKET _s, uint8_t *_buff) { \
return writeSn(_s, address, _buff, size); \
} \
static uint16_t read##name(SOCKET _s, uint8_t *_buff) { \
return readSn(_s, address, _buff, size); \
}
public:
__SOCKET_REGISTER8(SnMR, 0x0000) // Mode
__SOCKET_REGISTER8(SnCR, 0x0001) // Command
__SOCKET_REGISTER8(SnIR, 0x0002) // Interrupt
__SOCKET_REGISTER8(SnSR, 0x0003) // Status
__SOCKET_REGISTER16(SnPORT, 0x0004) // Source Port
__SOCKET_REGISTER_N(SnDHAR, 0x0006, 6) // Destination Hardw Addr
__SOCKET_REGISTER_N(SnDIPR, 0x000C, 4) // Destination IP Addr
__SOCKET_REGISTER16(SnDPORT, 0x0010) // Destination Port
__SOCKET_REGISTER16(SnMSSR, 0x0012) // Max Segment Size
__SOCKET_REGISTER8(SnPROTO, 0x0014) // Protocol in IP RAW Mode
__SOCKET_REGISTER8(SnTOS, 0x0015) // IP TOS
__SOCKET_REGISTER8(SnTTL, 0x0016) // IP TTL
__SOCKET_REGISTER8(SnRX_SIZE, 0x001E) // RX Memory Size (W5200 only)
__SOCKET_REGISTER8(SnTX_SIZE, 0x001F) // RX Memory Size (W5200 only)
__SOCKET_REGISTER16(SnTX_FSR, 0x0020) // TX Free Size
__SOCKET_REGISTER16(SnTX_RD, 0x0022) // TX Read Pointer
__SOCKET_REGISTER16(SnTX_WR, 0x0024) // TX Write Pointer
__SOCKET_REGISTER16(SnRX_RSR, 0x0026) // RX Free Size
__SOCKET_REGISTER16(SnRX_RD, 0x0028) // RX Read Pointer
__SOCKET_REGISTER16(SnRX_WR, 0x002A) // RX Write Pointer (supported?)
#undef __SOCKET_REGISTER8
#undef __SOCKET_REGISTER16
#undef __SOCKET_REGISTER_N
private:
static uint8_t chip;
static void reset(void);
static uint8_t isW5100(void);
static uint8_t isW5200(void);
static const uint8_t RST = 7; // Reset BIT
static const int SOCKETS = 4;
static uint16_t SMASK;
public:
static uint16_t SSIZE;
private:
//receive and transmit have same buffer sizes
static uint16_t SBASE[SOCKETS]; // Tx buffer base address
static uint16_t RBASE[SOCKETS]; // Rx buffer base address
private:
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
inline static void initSS() { DDRB |= _BV(4); };
inline static void setSS() { PORTB &= ~_BV(4); };
inline static void resetSS() { PORTB |= _BV(4); };
#elif defined(__AVR_ATmega32U4__) && defined(CORE_TEENSY)
inline static void initSS() { DDRB |= _BV(0); };
inline static void setSS() { PORTB &= ~_BV(0); };
inline static void resetSS() { PORTB |= _BV(0); };
#elif defined(__AVR_ATmega32U4__)
inline static void initSS() { DDRB |= _BV(6); };
inline static void setSS() { PORTB &= ~_BV(6); };
inline static void resetSS() { PORTB |= _BV(6); };
#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB162__)
inline static void initSS() { DDRB |= _BV(0); };
inline static void setSS() { PORTB &= ~_BV(0); };
inline static void resetSS() { PORTB |= _BV(0); };
#elif defined(__MK20DX128__) || defined(__MK20DX256__)
inline static void initSS() { pinMode(10, OUTPUT); };
inline static void setSS() { digitalWriteFast(10, LOW); };
inline static void resetSS() { digitalWriteFast(10, HIGH); };
#else
inline static void initSS() { DDRB |= _BV(2); };
inline static void setSS() { PORTB &= ~_BV(2); };
inline static void resetSS() { PORTB |= _BV(2); };
#endif
};
extern W5100Class W5100;
#endif

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/*
* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
* SPI Master library for arduino.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*/
#include "SPI.h"
#include "pins_arduino.h"
/**********************************************************/
/* 8 bit AVR-based boards */
/**********************************************************/
#if defined(__AVR__)
SPIClass SPI;
uint8_t SPIClass::interruptMode = 0;
uint8_t SPIClass::interruptMask = 0;
uint8_t SPIClass::interruptSave = 0;
#ifdef SPI_TRANSACTION_MISMATCH_LED
uint8_t SPIClass::inTransactionFlag = 0;
#endif
void SPIClass::begin()
{
// Set SS to high so a connected chip will be "deselected" by default
digitalWrite(SS, HIGH);
// When the SS pin is set as OUTPUT, it can be used as
// a general purpose output port (it doesn't influence
// SPI operations).
pinMode(SS, OUTPUT);
// Warning: if the SS pin ever becomes a LOW INPUT then SPI
// automatically switches to Slave, so the data direction of
// the SS pin MUST be kept as OUTPUT.
SPCR |= _BV(MSTR);
SPCR |= _BV(SPE);
// Set direction register for SCK and MOSI pin.
// MISO pin automatically overrides to INPUT.
// By doing this AFTER enabling SPI, we avoid accidentally
// clocking in a single bit since the lines go directly
// from "input" to SPI control.
// http://code.google.com/p/arduino/issues/detail?id=888
pinMode(SCK, OUTPUT);
pinMode(MOSI, OUTPUT);
}
void SPIClass::end() {
SPCR &= ~_BV(SPE);
}
// mapping of interrupt numbers to bits within SPI_AVR_EIMSK
#if defined(__AVR_ATmega32U4__)
#define SPI_INT0_MASK (1<<INT0)
#define SPI_INT1_MASK (1<<INT1)
#define SPI_INT2_MASK (1<<INT2)
#define SPI_INT3_MASK (1<<INT3)
#define SPI_INT4_MASK (1<<INT6)
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
#define SPI_INT0_MASK (1<<INT0)
#define SPI_INT1_MASK (1<<INT1)
#define SPI_INT2_MASK (1<<INT2)
#define SPI_INT3_MASK (1<<INT3)
#define SPI_INT4_MASK (1<<INT4)
#define SPI_INT5_MASK (1<<INT5)
#define SPI_INT6_MASK (1<<INT6)
#define SPI_INT7_MASK (1<<INT7)
#elif defined(EICRA) && defined(EICRB) && defined(EIMSK)
#define SPI_INT0_MASK (1<<INT4)
#define SPI_INT1_MASK (1<<INT5)
#define SPI_INT2_MASK (1<<INT0)
#define SPI_INT3_MASK (1<<INT1)
#define SPI_INT4_MASK (1<<INT2)
#define SPI_INT5_MASK (1<<INT3)
#define SPI_INT6_MASK (1<<INT6)
#define SPI_INT7_MASK (1<<INT7)
#else
#ifdef INT0
#define SPI_INT0_MASK (1<<INT0)
#endif
#ifdef INT1
#define SPI_INT1_MASK (1<<INT1)
#endif
#ifdef INT2
#define SPI_INT2_MASK (1<<INT2)
#endif
#endif
void SPIClass::usingInterrupt(uint8_t interruptNumber)
{
uint8_t stmp, mask;
if (interruptMode > 1) return;
stmp = SREG;
noInterrupts();
switch (interruptNumber) {
#ifdef SPI_INT0_MASK
case 0: mask = SPI_INT0_MASK; break;
#endif
#ifdef SPI_INT1_MASK
case 1: mask = SPI_INT1_MASK; break;
#endif
#ifdef SPI_INT2_MASK
case 2: mask = SPI_INT2_MASK; break;
#endif
#ifdef SPI_INT3_MASK
case 3: mask = SPI_INT3_MASK; break;
#endif
#ifdef SPI_INT4_MASK
case 4: mask = SPI_INT4_MASK; break;
#endif
#ifdef SPI_INT5_MASK
case 5: mask = SPI_INT5_MASK; break;
#endif
#ifdef SPI_INT6_MASK
case 6: mask = SPI_INT6_MASK; break;
#endif
#ifdef SPI_INT7_MASK
case 7: mask = SPI_INT7_MASK; break;
#endif
default:
interruptMode = 2;
SREG = stmp;
return;
}
interruptMode = 1;
interruptMask |= mask;
SREG = stmp;
}
/**********************************************************/
/* 32 bit Teensy 3.0 and 3.1 */
/**********************************************************/
#elif defined(__arm__) && defined(TEENSYDUINO) && defined(KINETISK)
SPIClass SPI;
uint8_t SPIClass::interruptMasksUsed = 0;
uint32_t SPIClass::interruptMask[(NVIC_NUM_INTERRUPTS+31)/32];
uint32_t SPIClass::interruptSave[(NVIC_NUM_INTERRUPTS+31)/32];
#ifdef SPI_TRANSACTION_MISMATCH_LED
uint8_t SPIClass::inTransactionFlag = 0;
#endif
void SPIClass::begin()
{
SIM_SCGC6 |= SIM_SCGC6_SPI0;
SPI0_MCR = SPI_MCR_MDIS | SPI_MCR_HALT | SPI_MCR_PCSIS(0x1F);
SPI0_CTAR0 = SPI_CTAR_FMSZ(7) | SPI_CTAR_PBR(0) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1);
SPI0_CTAR1 = SPI_CTAR_FMSZ(15) | SPI_CTAR_PBR(0) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1);
SPI0_MCR = SPI_MCR_MSTR | SPI_MCR_PCSIS(0x1F);
SPCR.enable_pins(); // pins managed by SPCRemulation in avr_emulation.h
}
void SPIClass::end() {
SPCR.disable_pins();
SPI0_MCR = SPI_MCR_MDIS | SPI_MCR_HALT | SPI_MCR_PCSIS(0x1F);
}
void SPIClass::usingInterrupt(IRQ_NUMBER_t interruptName)
{
uint32_t n = (uint32_t)interruptName;
if (n >= NVIC_NUM_INTERRUPTS) return;
//Serial.print("usingInterrupt ");
//Serial.println(n);
interruptMasksUsed |= (1 << (n >> 5));
interruptMask[n >> 5] |= (1 << (n & 0x1F));
//Serial.printf("interruptMasksUsed = %d\n", interruptMasksUsed);
//Serial.printf("interruptMask[0] = %08X\n", interruptMask[0]);
//Serial.printf("interruptMask[1] = %08X\n", interruptMask[1]);
//Serial.printf("interruptMask[2] = %08X\n", interruptMask[2]);
}
void SPIClass::notUsingInterrupt(IRQ_NUMBER_t interruptName)
{
uint32_t n = (uint32_t)interruptName;
if (n >= NVIC_NUM_INTERRUPTS) return;
interruptMask[n >> 5] &= ~(1 << (n & 0x1F));
if (interruptMask[n >> 5] == 0) {
interruptMasksUsed &= ~(1 << (n >> 5));
}
}
const uint16_t SPISettings::ctar_div_table[23] = {
2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, 40,
56, 64, 96, 128, 192, 256, 384, 512, 640, 768
};
const uint32_t SPISettings::ctar_clock_table[23] = {
SPI_CTAR_PBR(0) | SPI_CTAR_BR(0) | SPI_CTAR_DBR | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(0) | SPI_CTAR_DBR | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(0) | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(2) | SPI_CTAR_BR(0) | SPI_CTAR_DBR | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(0) | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1),
SPI_CTAR_PBR(2) | SPI_CTAR_BR(0) | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(3) | SPI_CTAR_CSSCK(2),
SPI_CTAR_PBR(2) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(0),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(3) | SPI_CTAR_CSSCK(2),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(4) | SPI_CTAR_CSSCK(3),
SPI_CTAR_PBR(2) | SPI_CTAR_BR(3) | SPI_CTAR_CSSCK(2),
SPI_CTAR_PBR(3) | SPI_CTAR_BR(3) | SPI_CTAR_CSSCK(2),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(5) | SPI_CTAR_CSSCK(4),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(5) | SPI_CTAR_CSSCK(4),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(6) | SPI_CTAR_CSSCK(5),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(6) | SPI_CTAR_CSSCK(5),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(7) | SPI_CTAR_CSSCK(6),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(7) | SPI_CTAR_CSSCK(6),
SPI_CTAR_PBR(0) | SPI_CTAR_BR(8) | SPI_CTAR_CSSCK(7),
SPI_CTAR_PBR(2) | SPI_CTAR_BR(7) | SPI_CTAR_CSSCK(6),
SPI_CTAR_PBR(1) | SPI_CTAR_BR(8) | SPI_CTAR_CSSCK(7)
};
static void updateCTAR(uint32_t ctar)
{
if (SPI0_CTAR0 != ctar) {
uint32_t mcr = SPI0_MCR;
if (mcr & SPI_MCR_MDIS) {
SPI0_CTAR0 = ctar;
SPI0_CTAR1 = ctar | SPI_CTAR_FMSZ(8);
} else {
SPI0_MCR = SPI_MCR_MDIS | SPI_MCR_HALT | SPI_MCR_PCSIS(0x1F);
SPI0_CTAR0 = ctar;
SPI0_CTAR1 = ctar | SPI_CTAR_FMSZ(8);
SPI0_MCR = mcr;
}
}
}
void SPIClass::setBitOrder(uint8_t bitOrder)
{
SIM_SCGC6 |= SIM_SCGC6_SPI0;
uint32_t ctar = SPI0_CTAR0;
if (bitOrder == LSBFIRST) {
ctar |= SPI_CTAR_LSBFE;
} else {
ctar &= ~SPI_CTAR_LSBFE;
}
updateCTAR(ctar);
}
void SPIClass::setDataMode(uint8_t dataMode)
{
SIM_SCGC6 |= SIM_SCGC6_SPI0;
// TODO: implement with native code
SPCR = (SPCR & ~SPI_MODE_MASK) | dataMode;
}
void SPIClass::setClockDivider_noInline(uint32_t clk)
{
SIM_SCGC6 |= SIM_SCGC6_SPI0;
uint32_t ctar = SPI0_CTAR0;
ctar &= (SPI_CTAR_CPOL | SPI_CTAR_CPHA | SPI_CTAR_LSBFE);
if (ctar & SPI_CTAR_CPHA) {
clk = (clk & 0xFFFF0FFF) | ((clk & 0xF000) >> 4);
}
ctar |= clk;
updateCTAR(ctar);
}
bool SPIClass::pinIsChipSelect(uint8_t pin)
{
if (pin == 10 || pin == 9 || pin == 6 || pin == 2 || pin == 15) return true;
if (pin >= 20 && pin <= 23) return true;
return false;
}
bool SPIClass::pinIsChipSelect(uint8_t pin1, uint8_t pin2)
{
if (!pinIsChipSelect(pin1) || !pinIsChipSelect(pin2)) return false;
if ((pin1 == 2 && pin2 == 10) || (pin1 == 10 && pin2 == 2)) return false;
if ((pin1 == 6 && pin2 == 9) || (pin1 == 9 && pin2 == 6)) return false;
if ((pin1 == 20 && pin2 == 23) || (pin1 == 23 && pin2 == 20)) return false;
if ((pin1 == 21 && pin2 == 22) || (pin1 == 22 && pin2 == 21)) return false;
return true;
}
uint8_t SPIClass::setCS(uint8_t pin)
{
switch (pin) {
case 10: CORE_PIN10_CONFIG = PORT_PCR_MUX(2); return 0x01; // PTC4
case 2: CORE_PIN2_CONFIG = PORT_PCR_MUX(2); return 0x01; // PTD0
case 9: CORE_PIN9_CONFIG = PORT_PCR_MUX(2); return 0x02; // PTC3
case 6: CORE_PIN6_CONFIG = PORT_PCR_MUX(2); return 0x02; // PTD4
case 20: CORE_PIN20_CONFIG = PORT_PCR_MUX(2); return 0x04; // PTD5
case 23: CORE_PIN23_CONFIG = PORT_PCR_MUX(2); return 0x04; // PTC2
case 21: CORE_PIN21_CONFIG = PORT_PCR_MUX(2); return 0x08; // PTD6
case 22: CORE_PIN22_CONFIG = PORT_PCR_MUX(2); return 0x08; // PTC1
case 15: CORE_PIN15_CONFIG = PORT_PCR_MUX(2); return 0x10; // PTC0
}
return 0;
}
/**********************************************************/
/* 32 bit Teensy-LC */
/**********************************************************/
#elif defined(__arm__) && defined(TEENSYDUINO) && defined(KINETISL)
SPIClass SPI;
SPI1Class SPI1;
uint32_t SPIClass::interruptMask = 0;
uint32_t SPIClass::interruptSave = 0;
uint32_t SPI1Class::interruptMask = 0;
uint32_t SPI1Class::interruptSave = 0;
#ifdef SPI_TRANSACTION_MISMATCH_LED
uint8_t SPIClass::inTransactionFlag = 0;
uint8_t SPI1Class::inTransactionFlag = 0;
#endif
void SPIClass::begin()
{
SIM_SCGC4 |= SIM_SCGC4_SPI0;
SPI0_C1 = SPI_C1_SPE | SPI_C1_MSTR;
SPI0_C2 = 0;
uint8_t tmp __attribute__((unused)) = SPI0_S;
SPCR.enable_pins(); // pins managed by SPCRemulation in avr_emulation.h
}
void SPIClass::end() {
SPCR.disable_pins();
SPI0_C1 = 0;
}
const uint16_t SPISettings::br_div_table[30] = {
2, 4, 6, 8, 10, 12, 14, 16, 20, 24,
28, 32, 40, 48, 56, 64, 80, 96, 112, 128,
160, 192, 224, 256, 320, 384, 448, 512, 640, 768,
};
const uint8_t SPISettings::br_clock_table[30] = {
SPI_BR_SPPR(0) | SPI_BR_SPR(0),
SPI_BR_SPPR(1) | SPI_BR_SPR(0),
SPI_BR_SPPR(2) | SPI_BR_SPR(0),
SPI_BR_SPPR(3) | SPI_BR_SPR(0),
SPI_BR_SPPR(4) | SPI_BR_SPR(0),
SPI_BR_SPPR(5) | SPI_BR_SPR(0),
SPI_BR_SPPR(6) | SPI_BR_SPR(0),
SPI_BR_SPPR(7) | SPI_BR_SPR(0),
SPI_BR_SPPR(4) | SPI_BR_SPR(1),
SPI_BR_SPPR(5) | SPI_BR_SPR(1),
SPI_BR_SPPR(6) | SPI_BR_SPR(1),
SPI_BR_SPPR(7) | SPI_BR_SPR(1),
SPI_BR_SPPR(4) | SPI_BR_SPR(2),
SPI_BR_SPPR(5) | SPI_BR_SPR(2),
SPI_BR_SPPR(6) | SPI_BR_SPR(2),
SPI_BR_SPPR(7) | SPI_BR_SPR(2),
SPI_BR_SPPR(4) | SPI_BR_SPR(3),
SPI_BR_SPPR(5) | SPI_BR_SPR(3),
SPI_BR_SPPR(6) | SPI_BR_SPR(3),
SPI_BR_SPPR(7) | SPI_BR_SPR(3),
SPI_BR_SPPR(4) | SPI_BR_SPR(4),
SPI_BR_SPPR(5) | SPI_BR_SPR(4),
SPI_BR_SPPR(6) | SPI_BR_SPR(4),
SPI_BR_SPPR(7) | SPI_BR_SPR(4),
SPI_BR_SPPR(4) | SPI_BR_SPR(5),
SPI_BR_SPPR(5) | SPI_BR_SPR(5),
SPI_BR_SPPR(6) | SPI_BR_SPR(5),
SPI_BR_SPPR(7) | SPI_BR_SPR(5),
SPI_BR_SPPR(4) | SPI_BR_SPR(6),
SPI_BR_SPPR(5) | SPI_BR_SPR(6)
};
uint8_t SPIClass::setCS(uint8_t pin)
{
switch (pin) {
case 10: CORE_PIN10_CONFIG = PORT_PCR_MUX(2); return 0x01; // PTC4
case 2: CORE_PIN2_CONFIG = PORT_PCR_MUX(2); return 0x01; // PTD0
}
return 0;
}
void SPI1Class::begin()
{
SIM_SCGC4 |= SIM_SCGC4_SPI1;
SPI1_C1 = SPI_C1_SPE | SPI_C1_MSTR;
SPI1_C2 = 0;
uint8_t tmp __attribute__((unused)) = SPI1_S;
SPCR1.enable_pins(); // pins managed by SPCRemulation in avr_emulation.h
}
void SPI1Class::end() {
SPCR1.disable_pins();
SPI1_C1 = 0;
}
uint8_t SPI1Class::setCS(uint8_t pin)
{
switch (pin) {
case 6: CORE_PIN6_CONFIG = PORT_PCR_MUX(2); return 0x01; // PTD4
}
return 0;
}
/**********************************************************/
/* 32 bit Arduino Due */
/**********************************************************/
#elif defined(__arm__) && defined(__SAM3X8E__)
#include "SPI.h"
SPIClass::SPIClass(Spi *_spi, uint32_t _id, void(*_initCb)(void)) :
spi(_spi), id(_id), initCb(_initCb), initialized(false)
{
// Empty
}
void SPIClass::begin() {
init();
// NPCS control is left to the user
// Default speed set to 4Mhz
setClockDivider(BOARD_SPI_DEFAULT_SS, 21);
setDataMode(BOARD_SPI_DEFAULT_SS, SPI_MODE0);
setBitOrder(BOARD_SPI_DEFAULT_SS, MSBFIRST);
}
void SPIClass::begin(uint8_t _pin) {
init();
uint32_t spiPin = BOARD_PIN_TO_SPI_PIN(_pin);
PIO_Configure(
g_APinDescription[spiPin].pPort,
g_APinDescription[spiPin].ulPinType,
g_APinDescription[spiPin].ulPin,
g_APinDescription[spiPin].ulPinConfiguration);
// Default speed set to 4Mhz
setClockDivider(_pin, 21);
setDataMode(_pin, SPI_MODE0);
setBitOrder(_pin, MSBFIRST);
}
void SPIClass::init() {
if (initialized)
return;
interruptMode = 0;
interruptMask = 0;
interruptSave = 0;
initCb();
SPI_Configure(spi, id, SPI_MR_MSTR | SPI_MR_PS | SPI_MR_MODFDIS);
SPI_Enable(spi);
initialized = true;
}
#ifndef interruptsStatus
#define interruptsStatus() __interruptsStatus()
static inline unsigned char __interruptsStatus(void) __attribute__((always_inline, unused));
static inline unsigned char __interruptsStatus(void) {
unsigned int primask;
asm volatile ("mrs %0, primask" : "=r" (primask));
if (primask) return 0;
return 1;
}
#endif
void SPIClass::usingInterrupt(uint8_t interruptNumber)
{
uint8_t irestore;
irestore = interruptsStatus();
noInterrupts();
if (interruptMode < 2) {
if (interruptNumber > NUM_DIGITAL_PINS) {
interruptMode = 2;
} else {
uint8_t imask = interruptMask;
Pio *pio = g_APinDescription[interruptNumber].pPort;
if (pio == PIOA) {
imask |= 1;
} else if (pio == PIOB) {
imask |= 2;
} else if (pio == PIOC) {
imask |= 4;
} else if (pio == PIOD) {
imask |= 8;
}
interruptMask = imask;
interruptMode = 1;
}
}
if (irestore) interrupts();
}
void SPIClass::beginTransaction(uint8_t pin, SPISettings settings)
{
if (interruptMode > 0) {
if (interruptMode == 1) {
uint8_t imask = interruptMask;
if (imask & 1) NVIC_DisableIRQ(PIOA_IRQn);
if (imask & 2) NVIC_DisableIRQ(PIOB_IRQn);
if (imask & 4) NVIC_DisableIRQ(PIOC_IRQn);
if (imask & 8) NVIC_DisableIRQ(PIOD_IRQn);
} else {
interruptSave = interruptsStatus();
noInterrupts();
}
}
uint32_t ch = BOARD_PIN_TO_SPI_CHANNEL(pin);
bitOrder[ch] = settings.border;
SPI_ConfigureNPCS(spi, ch, settings.config);
}
void SPIClass::endTransaction(void)
{
if (interruptMode > 0) {
if (interruptMode == 1) {
uint8_t imask = interruptMask;
if (imask & 1) NVIC_EnableIRQ(PIOA_IRQn);
if (imask & 2) NVIC_EnableIRQ(PIOB_IRQn);
if (imask & 4) NVIC_EnableIRQ(PIOC_IRQn);
if (imask & 8) NVIC_EnableIRQ(PIOD_IRQn);
} else {
if (interruptSave) interrupts();
}
}
}
void SPIClass::end(uint8_t _pin) {
uint32_t spiPin = BOARD_PIN_TO_SPI_PIN(_pin);
// Setting the pin as INPUT will disconnect it from SPI peripheral
pinMode(spiPin, INPUT);
}
void SPIClass::end() {
SPI_Disable(spi);
initialized = false;
}
void SPIClass::setBitOrder(uint8_t _pin, BitOrder _bitOrder) {
uint32_t ch = BOARD_PIN_TO_SPI_CHANNEL(_pin);
bitOrder[ch] = _bitOrder;
}
void SPIClass::setDataMode(uint8_t _pin, uint8_t _mode) {
uint32_t ch = BOARD_PIN_TO_SPI_CHANNEL(_pin);
mode[ch] = _mode | SPI_CSR_CSAAT;
// SPI_CSR_DLYBCT(1) keeps CS enabled for 32 MCLK after a completed
// transfer. Some device needs that for working properly.
SPI_ConfigureNPCS(spi, ch, mode[ch] | SPI_CSR_SCBR(divider[ch]) | SPI_CSR_DLYBCT(1));
}
void SPIClass::setClockDivider(uint8_t _pin, uint8_t _divider) {
uint32_t ch = BOARD_PIN_TO_SPI_CHANNEL(_pin);
divider[ch] = _divider;
// SPI_CSR_DLYBCT(1) keeps CS enabled for 32 MCLK after a completed
// transfer. Some device needs that for working properly.
SPI_ConfigureNPCS(spi, ch, mode[ch] | SPI_CSR_SCBR(divider[ch]) | SPI_CSR_DLYBCT(1));
}
byte SPIClass::transfer(byte _pin, uint8_t _data, SPITransferMode _mode) {
uint32_t ch = BOARD_PIN_TO_SPI_CHANNEL(_pin);
// Reverse bit order
if (bitOrder[ch] == LSBFIRST)
_data = __REV(__RBIT(_data));
uint32_t d = _data | SPI_PCS(ch);
if (_mode == SPI_LAST)
d |= SPI_TDR_LASTXFER;
// SPI_Write(spi, _channel, _data);
while ((spi->SPI_SR & SPI_SR_TDRE) == 0)
;
spi->SPI_TDR = d;
// return SPI_Read(spi);
while ((spi->SPI_SR & SPI_SR_RDRF) == 0)
;
d = spi->SPI_RDR;
// Reverse bit order
if (bitOrder[ch] == LSBFIRST)
d = __REV(__RBIT(d));
return d & 0xFF;
}
void SPIClass::attachInterrupt(void) {
// Should be enableInterrupt()
}
void SPIClass::detachInterrupt(void) {
// Should be disableInterrupt()
}
#if SPI_INTERFACES_COUNT > 0
static void SPI_0_Init(void) {
PIO_Configure(
g_APinDescription[PIN_SPI_MOSI].pPort,
g_APinDescription[PIN_SPI_MOSI].ulPinType,
g_APinDescription[PIN_SPI_MOSI].ulPin,
g_APinDescription[PIN_SPI_MOSI].ulPinConfiguration);
PIO_Configure(
g_APinDescription[PIN_SPI_MISO].pPort,
g_APinDescription[PIN_SPI_MISO].ulPinType,
g_APinDescription[PIN_SPI_MISO].ulPin,
g_APinDescription[PIN_SPI_MISO].ulPinConfiguration);
PIO_Configure(
g_APinDescription[PIN_SPI_SCK].pPort,
g_APinDescription[PIN_SPI_SCK].ulPinType,
g_APinDescription[PIN_SPI_SCK].ulPin,
g_APinDescription[PIN_SPI_SCK].ulPinConfiguration);
}
SPIClass SPI(SPI_INTERFACE, SPI_INTERFACE_ID, SPI_0_Init);
#endif
#endif

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/*
Streaming.h - Arduino library for supporting the << streaming operator
Copyright (c) 2010-2012 Mikal Hart. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef ARDUINO_STREAMING
#define ARDUINO_STREAMING
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#define STREAMING_LIBRARY_VERSION 5
// Generic template
template<class T>
inline Print &operator <<(Print &stream, T arg)
{ stream.print(arg); return stream; }
struct _BASED
{
long val;
int base;
_BASED(long v, int b): val(v), base(b)
{}
};
#if ARDUINO >= 100
struct _BYTE_CODE
{
byte val;
_BYTE_CODE(byte v) : val(v)
{}
};
#define _BYTE(a) _BYTE_CODE(a)
inline Print &operator <<(Print &obj, const _BYTE_CODE &arg)
{ obj.write(arg.val); return obj; }
#else
#define _BYTE(a) _BASED(a, BYTE)
#endif
#define _HEX(a) _BASED(a, HEX)
#define _DEC(a) _BASED(a, DEC)
#define _OCT(a) _BASED(a, OCT)
#define _BIN(a) _BASED(a, BIN)
// Specialization for class _BASED
// Thanks to Arduino forum user Ben Combee who suggested this
// clever technique to allow for expressions like
// Serial << _HEX(a);
inline Print &operator <<(Print &obj, const _BASED &arg)
{ obj.print(arg.val, arg.base); return obj; }
#if ARDUINO >= 18
// Specialization for class _FLOAT
// Thanks to Michael Margolis for suggesting a way
// to accommodate Arduino 0018's floating point precision
// feature like this:
// Serial << _FLOAT(gps_latitude, 6); // 6 digits of precision
struct _FLOAT
{
float val;
int digits;
_FLOAT(double v, int d): val(v), digits(d)
{}
};
inline Print &operator <<(Print &obj, const _FLOAT &arg)
{ obj.print(arg.val, arg.digits); return obj; }
#endif
// Specialization for enum _EndLineCode
// Thanks to Arduino forum user Paul V. who suggested this
// clever technique to allow for expressions like
// Serial << "Hello!" << endl;
enum _EndLineCode { endl };
inline Print &operator <<(Print &obj, _EndLineCode arg)
{ obj.println(); return obj; }
#endif