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Diffstat (limited to 'libraries/Firmata/Firmata.h')
| -rw-r--r-- | libraries/Firmata/Firmata.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/libraries/Firmata/Firmata.h b/libraries/Firmata/Firmata.h new file mode 100644 index 0000000..74f1ccc --- /dev/null +++ b/libraries/Firmata/Firmata.h @@ -0,0 +1,163 @@ +/* + Firmata.h - 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. +*/ + +#ifndef Firmata_h +#define Firmata_h + +#include "Boards.h" /* Hardware Abstraction Layer + Wiring/Arduino */ + +/* Version numbers for the protocol. The protocol is still changing, so these + * version numbers are important. This number can be queried so that host + * software can test whether it will be compatible with the currently + * installed firmware. */ +#define FIRMATA_MAJOR_VERSION 2 // for non-compatible changes +#define FIRMATA_MINOR_VERSION 3 // for backwards compatible changes +#define FIRMATA_BUGFIX_VERSION 1 // for bugfix releases + +#define MAX_DATA_BYTES 32 // max number of data bytes in non-Sysex messages + +// message command bytes (128-255/0x80-0xFF) +#define DIGITAL_MESSAGE 0x90 // send data for a digital pin +#define ANALOG_MESSAGE 0xE0 // send data for an analog pin (or PWM) +#define REPORT_ANALOG 0xC0 // enable analog input by pin # +#define REPORT_DIGITAL 0xD0 // enable digital input by port pair +// +#define SET_PIN_MODE 0xF4 // set a pin to INPUT/OUTPUT/PWM/etc +// +#define REPORT_VERSION 0xF9 // report protocol version +#define SYSTEM_RESET 0xFF // reset from MIDI +// +#define START_SYSEX 0xF0 // start a MIDI Sysex message +#define END_SYSEX 0xF7 // end a MIDI Sysex message + +// extended command set using sysex (0-127/0x00-0x7F) +/* 0x00-0x0F reserved for user-defined commands */ +#define SERVO_CONFIG 0x70 // set max angle, minPulse, maxPulse, freq +#define STRING_DATA 0x71 // a string message with 14-bits per char +#define SHIFT_DATA 0x75 // a bitstream to/from a shift register +#define I2C_REQUEST 0x76 // send an I2C read/write request +#define I2C_REPLY 0x77 // a reply to an I2C read request +#define I2C_CONFIG 0x78 // config I2C settings such as delay times and power pins +#define EXTENDED_ANALOG 0x6F // analog write (PWM, Servo, etc) to any pin +#define PIN_STATE_QUERY 0x6D // ask for a pin's current mode and value +#define PIN_STATE_RESPONSE 0x6E // reply with pin's current mode and value +#define CAPABILITY_QUERY 0x6B // ask for supported modes and resolution of all pins +#define CAPABILITY_RESPONSE 0x6C // reply with supported modes and resolution +#define ANALOG_MAPPING_QUERY 0x69 // ask for mapping of analog to pin numbers +#define ANALOG_MAPPING_RESPONSE 0x6A // reply with mapping info +#define REPORT_FIRMWARE 0x79 // report name and version of the firmware +#define SAMPLING_INTERVAL 0x7A // set the poll rate of the main loop +#define SYSEX_NON_REALTIME 0x7E // MIDI Reserved for non-realtime messages +#define SYSEX_REALTIME 0x7F // MIDI Reserved for realtime messages +// these are DEPRECATED to make the naming more consistent +#define FIRMATA_STRING 0x71 // same as STRING_DATA +#define SYSEX_I2C_REQUEST 0x76 // same as I2C_REQUEST +#define SYSEX_I2C_REPLY 0x77 // same as I2C_REPLY +#define SYSEX_SAMPLING_INTERVAL 0x7A // same as SAMPLING_INTERVAL + +// pin modes +//#define INPUT 0x00 // defined in wiring.h +//#define OUTPUT 0x01 // defined in wiring.h +#define ANALOG 0x02 // analog pin in analogInput mode +#define PWM 0x03 // digital pin in PWM output mode +#define SERVO 0x04 // digital pin in Servo output mode +#define SHIFT 0x05 // shiftIn/shiftOut mode +#define I2C 0x06 // pin included in I2C setup +#define TOTAL_PIN_MODES 7 + +extern "C" { +// callback function types + typedef void (*callbackFunction)(byte, int); + typedef void (*systemResetCallbackFunction)(void); + typedef void (*stringCallbackFunction)(char*); + typedef void (*sysexCallbackFunction)(byte command, byte argc, byte*argv); +} + + +// TODO make it a subclass of a generic Serial/Stream base class +class FirmataClass +{ +public: + FirmataClass(Stream &s); +/* Arduino constructors */ + void begin(); + void begin(long); + void begin(Stream &s); +/* querying functions */ + void printVersion(void); + void blinkVersion(void); + void printFirmwareVersion(void); + //void setFirmwareVersion(byte major, byte minor); // see macro below + void setFirmwareNameAndVersion(const char *name, byte major, byte minor); +/* serial receive handling */ + int available(void); + void processInput(void); +/* serial send handling */ + void sendAnalog(byte pin, int value); + void sendDigital(byte pin, int value); // TODO implement this + void sendDigitalPort(byte portNumber, int portData); + void sendString(const char* string); + void sendString(byte command, const char* string); + void sendSysex(byte command, byte bytec, byte* bytev); +/* attach & detach callback functions to messages */ + void attach(byte command, callbackFunction newFunction); + void attach(byte command, systemResetCallbackFunction newFunction); + void attach(byte command, stringCallbackFunction newFunction); + void attach(byte command, sysexCallbackFunction newFunction); + void detach(byte command); + +private: + Stream &FirmataSerial; +/* firmware name and version */ + byte firmwareVersionCount; + byte *firmwareVersionVector; +/* input message handling */ + byte waitForData; // this flag says the next serial input will be data + byte executeMultiByteCommand; // execute this after getting multi-byte data + byte multiByteChannel; // channel data for multiByteCommands + byte storedInputData[MAX_DATA_BYTES]; // multi-byte data +/* sysex */ + boolean parsingSysex; + int sysexBytesRead; +/* callback functions */ + callbackFunction currentAnalogCallback; + callbackFunction currentDigitalCallback; + callbackFunction currentReportAnalogCallback; + callbackFunction currentReportDigitalCallback; + callbackFunction currentPinModeCallback; + systemResetCallbackFunction currentSystemResetCallback; + stringCallbackFunction currentStringCallback; + sysexCallbackFunction currentSysexCallback; + +/* private methods ------------------------------ */ + void processSysexMessage(void); + void systemReset(void); + void pin13strobe(int count, int onInterval, int offInterval); + void sendValueAsTwo7bitBytes(int value); + void startSysex(void); + void endSysex(void); +}; + +extern FirmataClass Firmata; + +/*============================================================================== + * MACROS + *============================================================================*/ + +/* shortcut for setFirmwareNameAndVersion() that uses __FILE__ to set the + * firmware name. It needs to be a macro so that __FILE__ is included in the + * firmware source file rather than the library source file. + */ +#define setFirmwareVersion(x, y) setFirmwareNameAndVersion(__FILE__, x, y) + +#endif /* Firmata_h */ + |