From 8c2b5b979a75d109ae7cc306afc50d7ffe1e0366 Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@bug.st>
Date: Wed, 4 Jan 2012 15:14:51 +0100
Subject: Moved libraries folder inside platform folder. Now libraries and
 examples are searched per board/platform

---
 libraries/Firmata/Firmata.cpp | 444 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 444 insertions(+)
 create mode 100644 libraries/Firmata/Firmata.cpp

(limited to 'libraries/Firmata/Firmata.cpp')

diff --git a/libraries/Firmata/Firmata.cpp b/libraries/Firmata/Firmata.cpp
new file mode 100644
index 0000000..e81c10b
--- /dev/null
+++ b/libraries/Firmata/Firmata.cpp
@@ -0,0 +1,444 @@
+/*
+  Firmata.cpp - Firmata library
+  Copyright (C) 2006-2008 Hans-Christoph Steiner.  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.
+
+  See file LICENSE.txt for further informations on licensing terms.
+*/
+
+//******************************************************************************
+//* Includes
+//******************************************************************************
+
+#include "Firmata.h"
+#include "HardwareSerial.h"
+
+extern "C" {
+#include <string.h>
+#include <stdlib.h>
+}
+
+//******************************************************************************
+//* Support Functions
+//******************************************************************************
+
+void FirmataClass::sendValueAsTwo7bitBytes(int value)
+{
+  FirmataSerial.write(value & B01111111); // LSB
+  FirmataSerial.write(value >> 7 & B01111111); // MSB
+}
+
+void FirmataClass::startSysex(void)
+{
+  FirmataSerial.write(START_SYSEX);
+}
+
+void FirmataClass::endSysex(void)
+{
+  FirmataSerial.write(END_SYSEX);
+}
+
+//******************************************************************************
+//* Constructors
+//******************************************************************************
+
+FirmataClass::FirmataClass(Stream &s) : FirmataSerial(s)
+{
+  firmwareVersionCount = 0;
+  systemReset();
+}
+
+//******************************************************************************
+//* Public Methods
+//******************************************************************************
+
+/* begin method for overriding default serial bitrate */
+void FirmataClass::begin(void)
+{
+  begin(57600);
+}
+
+/* begin method for overriding default serial bitrate */
+void FirmataClass::begin(long speed)
+{
+  Serial.begin(speed);
+  FirmataSerial = Serial;
+  blinkVersion();
+  printVersion();
+  printFirmwareVersion();
+}
+
+void FirmataClass::begin(Stream &s)
+{
+  FirmataSerial = s;
+  systemReset();
+  printVersion();
+  printFirmwareVersion();
+}
+
+// output the protocol version message to the serial port
+void FirmataClass::printVersion(void) {
+  FirmataSerial.write(REPORT_VERSION);
+  FirmataSerial.write(FIRMATA_MAJOR_VERSION);
+  FirmataSerial.write(FIRMATA_MINOR_VERSION);
+}
+
+void FirmataClass::blinkVersion(void)
+{
+  // flash the pin with the protocol version
+  pinMode(VERSION_BLINK_PIN,OUTPUT);
+  pin13strobe(FIRMATA_MAJOR_VERSION, 40, 210);
+  delay(250);
+  pin13strobe(FIRMATA_MINOR_VERSION, 40, 210);
+  delay(125);
+}
+
+void FirmataClass::printFirmwareVersion(void)
+{
+  byte i;
+
+  if(firmwareVersionCount) { // make sure that the name has been set before reporting
+    startSysex();
+    FirmataSerial.write(REPORT_FIRMWARE);
+    FirmataSerial.write(firmwareVersionVector[0]); // major version number
+    FirmataSerial.write(firmwareVersionVector[1]); // minor version number
+    for(i=2; i<firmwareVersionCount; ++i) {
+      sendValueAsTwo7bitBytes(firmwareVersionVector[i]);
+    }
+    endSysex();
+  }
+}
+
+void FirmataClass::setFirmwareNameAndVersion(const char *name, byte major, byte minor)
+{
+  const char *filename;
+  char *extension;
+
+  // parse out ".cpp" and "applet/" that comes from using __FILE__
+  extension = strstr(name, ".cpp");
+  filename = strrchr(name, '/') + 1; //points to slash, +1 gets to start of filename
+  // add two bytes for version numbers
+  if(extension && filename) {
+    firmwareVersionCount = extension - filename + 2;
+  } else {
+    firmwareVersionCount = strlen(name) + 2;
+    filename = name;
+  }
+  firmwareVersionVector = (byte *) malloc(firmwareVersionCount);
+  firmwareVersionVector[firmwareVersionCount] = 0;
+  firmwareVersionVector[0] = major;
+  firmwareVersionVector[1] = minor;
+  strncpy((char*)firmwareVersionVector + 2, filename, firmwareVersionCount - 2);
+  // alas, no snprintf on Arduino
+  //    snprintf(firmwareVersionVector, MAX_DATA_BYTES, "%c%c%s", 
+  //             (char)major, (char)minor, firmwareVersionVector);
+}
+
+//------------------------------------------------------------------------------
+// Serial Receive Handling
+
+int FirmataClass::available(void)
+{
+  return FirmataSerial.available();
+}
+
+
+void FirmataClass::processSysexMessage(void)
+{
+  switch(storedInputData[0]) { //first byte in buffer is command
+  case REPORT_FIRMWARE:
+    printFirmwareVersion();
+    break;
+  case STRING_DATA:
+    if(currentStringCallback) {
+      byte bufferLength = (sysexBytesRead - 1) / 2;
+      char *buffer = (char*)malloc(bufferLength * sizeof(char));
+      byte i = 1;
+      byte j = 0;
+      while(j < bufferLength) {
+        buffer[j] = (char)storedInputData[i];
+        i++;
+        buffer[j] += (char)(storedInputData[i] << 7);
+        i++;
+        j++;
+      }
+      (*currentStringCallback)(buffer);
+    }
+    break;
+  default:
+    if(currentSysexCallback)
+      (*currentSysexCallback)(storedInputData[0], sysexBytesRead - 1, storedInputData + 1);
+  }
+}
+
+void FirmataClass::processInput(void)
+{
+  int inputData = FirmataSerial.read(); // this is 'int' to handle -1 when no data
+  int command;
+    
+  // TODO make sure it handles -1 properly
+
+  if (parsingSysex) {
+    if(inputData == END_SYSEX) {
+      //stop sysex byte      
+      parsingSysex = false;
+      //fire off handler function
+      processSysexMessage();
+    } else {
+      //normal data byte - add to buffer
+      storedInputData[sysexBytesRead] = inputData;
+      sysexBytesRead++;
+    }
+  } else if( (waitForData > 0) && (inputData < 128) ) {  
+    waitForData--;
+    storedInputData[waitForData] = inputData;
+    if( (waitForData==0) && executeMultiByteCommand ) { // got the whole message
+      switch(executeMultiByteCommand) {
+      case ANALOG_MESSAGE:
+        if(currentAnalogCallback) {
+          (*currentAnalogCallback)(multiByteChannel,
+                                   (storedInputData[0] << 7)
+                                   + storedInputData[1]);
+        }
+        break;
+      case DIGITAL_MESSAGE:
+        if(currentDigitalCallback) {
+          (*currentDigitalCallback)(multiByteChannel,
+                                    (storedInputData[0] << 7)
+                                    + storedInputData[1]);
+        }
+        break;
+      case SET_PIN_MODE:
+        if(currentPinModeCallback)
+          (*currentPinModeCallback)(storedInputData[1], storedInputData[0]);
+        break;
+      case REPORT_ANALOG:
+        if(currentReportAnalogCallback)
+          (*currentReportAnalogCallback)(multiByteChannel,storedInputData[0]);
+        break;
+      case REPORT_DIGITAL:
+        if(currentReportDigitalCallback)
+          (*currentReportDigitalCallback)(multiByteChannel,storedInputData[0]);
+        break;
+      }
+      executeMultiByteCommand = 0;
+    }	
+  } else {
+    // remove channel info from command byte if less than 0xF0
+    if(inputData < 0xF0) {
+      command = inputData & 0xF0;
+      multiByteChannel = inputData & 0x0F;
+    } else {
+      command = inputData;
+      // commands in the 0xF* range don't use channel data
+    }
+    switch (command) {
+    case ANALOG_MESSAGE:
+    case DIGITAL_MESSAGE:
+    case SET_PIN_MODE:
+      waitForData = 2; // two data bytes needed
+      executeMultiByteCommand = command;
+      break;
+    case REPORT_ANALOG:
+    case REPORT_DIGITAL:
+      waitForData = 1; // two data bytes needed
+      executeMultiByteCommand = command;
+      break;
+    case START_SYSEX:
+      parsingSysex = true;
+      sysexBytesRead = 0;
+      break;
+    case SYSTEM_RESET:
+      systemReset();
+      break;
+    case REPORT_VERSION:
+      Firmata.printVersion();
+      break;
+    }
+  }
+}
+
+//------------------------------------------------------------------------------
+// Serial Send Handling
+
+// send an analog message
+void FirmataClass::sendAnalog(byte pin, int value) 
+{
+  // pin can only be 0-15, so chop higher bits
+  FirmataSerial.write(ANALOG_MESSAGE | (pin & 0xF));
+  sendValueAsTwo7bitBytes(value);
+}
+
+// send a single digital pin in a digital message
+void FirmataClass::sendDigital(byte pin, int value) 
+{
+  /* TODO add single pin digital messages to the protocol, this needs to
+   * track the last digital data sent so that it can be sure to change just
+   * one bit in the packet.  This is complicated by the fact that the
+   * numbering of the pins will probably differ on Arduino, Wiring, and
+   * other boards.  The DIGITAL_MESSAGE sends 14 bits at a time, but it is
+   * probably easier to send 8 bit ports for any board with more than 14
+   * digital pins.
+   */
+
+  // TODO: the digital message should not be sent on the serial port every
+  // time sendDigital() is called.  Instead, it should add it to an int
+  // which will be sent on a schedule.  If a pin changes more than once
+  // before the digital message is sent on the serial port, it should send a
+  // digital message for each change.
+
+  //    if(value == 0)
+  //        sendDigitalPortPair();
+}
+
+
+// send 14-bits in a single digital message (protocol v1)
+// send an 8-bit port in a single digital message (protocol v2)
+void FirmataClass::sendDigitalPort(byte portNumber, int portData)
+{
+  FirmataSerial.write(DIGITAL_MESSAGE | (portNumber & 0xF));
+  FirmataSerial.write((byte)portData % 128); // Tx bits 0-6
+  FirmataSerial.write(portData >> 7);  // Tx bits 7-13
+}
+
+
+void FirmataClass::sendSysex(byte command, byte bytec, byte* bytev) 
+{
+  byte i;
+  startSysex();
+  FirmataSerial.write(command);
+  for(i=0; i<bytec; i++) {
+    sendValueAsTwo7bitBytes(bytev[i]);        
+  }
+  endSysex();
+}
+
+void FirmataClass::sendString(byte command, const char* string) 
+{
+  sendSysex(command, strlen(string), (byte *)string);
+}
+
+
+// send a string as the protocol string type
+void FirmataClass::sendString(const char* string) 
+{
+  sendString(STRING_DATA, string);
+}
+
+
+// Internal Actions/////////////////////////////////////////////////////////////
+
+// generic callbacks
+void FirmataClass::attach(byte command, callbackFunction newFunction)
+{
+  switch(command) {
+  case ANALOG_MESSAGE: currentAnalogCallback = newFunction; break;
+  case DIGITAL_MESSAGE: currentDigitalCallback = newFunction; break;
+  case REPORT_ANALOG: currentReportAnalogCallback = newFunction; break;
+  case REPORT_DIGITAL: currentReportDigitalCallback = newFunction; break;
+  case SET_PIN_MODE: currentPinModeCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, systemResetCallbackFunction newFunction)
+{
+  switch(command) {
+  case SYSTEM_RESET: currentSystemResetCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, stringCallbackFunction newFunction)
+{
+  switch(command) {
+  case STRING_DATA: currentStringCallback = newFunction; break;
+  }
+}
+
+void FirmataClass::attach(byte command, sysexCallbackFunction newFunction)
+{
+  currentSysexCallback = newFunction;
+}
+
+void FirmataClass::detach(byte command)
+{
+  switch(command) {
+  case SYSTEM_RESET: currentSystemResetCallback = NULL; break;
+  case STRING_DATA: currentStringCallback = NULL; break;
+  case START_SYSEX: currentSysexCallback = NULL; break;
+  default:
+    attach(command, (callbackFunction)NULL);
+  }
+}
+
+// sysex callbacks
+/*
+ * this is too complicated for analogReceive, but maybe for Sysex?
+ void FirmataClass::attachSysex(sysexFunction newFunction)
+ {
+ byte i;
+ byte tmpCount = analogReceiveFunctionCount;
+ analogReceiveFunction* tmpArray = analogReceiveFunctionArray;
+ analogReceiveFunctionCount++;
+ analogReceiveFunctionArray = (analogReceiveFunction*) calloc(analogReceiveFunctionCount, sizeof(analogReceiveFunction));
+ for(i = 0; i < tmpCount; i++) {
+ analogReceiveFunctionArray[i] = tmpArray[i];
+ }
+ analogReceiveFunctionArray[tmpCount] = newFunction;
+ free(tmpArray);
+ }
+*/
+
+//******************************************************************************
+//* Private Methods
+//******************************************************************************
+
+
+
+// resets the system state upon a SYSTEM_RESET message from the host software
+void FirmataClass::systemReset(void)
+{
+  byte i;
+
+  waitForData = 0; // this flag says the next serial input will be data
+  executeMultiByteCommand = 0; // execute this after getting multi-byte data
+  multiByteChannel = 0; // channel data for multiByteCommands
+
+
+  for(i=0; i<MAX_DATA_BYTES; i++) {
+    storedInputData[i] = 0;
+  }
+
+  parsingSysex = false;
+  sysexBytesRead = 0;
+
+  if(currentSystemResetCallback)
+    (*currentSystemResetCallback)();
+
+  //flush(); //TODO uncomment when Firmata is a subclass of HardwareSerial
+}
+
+
+
+// =============================================================================
+// used for flashing the pin for the version number
+void FirmataClass::pin13strobe(int count, int onInterval, int offInterval) 
+{
+  byte i;
+  pinMode(VERSION_BLINK_PIN, OUTPUT);
+  for(i=0; i<count; i++) {
+    delay(offInterval);
+    digitalWrite(VERSION_BLINK_PIN, HIGH);
+    delay(onInterval);
+    digitalWrite(VERSION_BLINK_PIN, LOW);
+  }
+}
+
+
+// make one instance for the user to use
+FirmataClass Firmata(Serial);
+
+
-- 
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