1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
Firmata.cpp - Firmata library
Copyright (c) 2007 Free Software Foundation. All right reserved.
Written by Hans-Christoph Steiner <hans@at.or.at>
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
//******************************************************************************
extern "C" {
// AVR LibC Includes
#include <inttypes.h>
#include <stdlib.h>
// use the abs in WConstants.h, not the one in stdlib.h
#undef abs
// Wiring Core Includes
#include "WConstants.h"
}
#include "Firmata.h"
#include "EEPROM.h"
#include "HardwareSerial.h"
//******************************************************************************
//* Definitions
//******************************************************************************
//******************************************************************************
//* Constructors
//******************************************************************************
FirmataClass::FirmataClass()
{
// TODO: init serial here
// TODO: printVersion
}
//******************************************************************************
//* Private Methods
//******************************************************************************
// resets the system state upon a SYSTEM_RESET message from the host software
void FirmataClass::systemReset(void)
{
// TODO automatically call this in response to SYSTEM_RESET
// TODO reset EEPROM to 0 here
}
//******************************************************************************
//* Public Methods
//******************************************************************************
// output type of message that is next on the queue
int FirmataClass::available(void)
{
return -1;
// TODO output next available message type, or -1 if nothing
}
// output the protocol version message to the serial port
void FirmataClass::printVersion() {
Serial.print(REPORT_VERSION, BYTE);
Serial.print(FIRMATA_MINOR_VERSION, BYTE);
Serial.print(FIRMATA_MAJOR_VERSION, BYTE);
}
// send an analog message
void FirmataClass::sendAnalog(int pin, int value)
{
// pin can only be 0-15, so chop higher bits
Serial.print(ANALOG_MESSAGE | (pin & 0xF), BYTE);
Serial.print(value % 128, BYTE);
Serial.print(value >> 7, BYTE);
}
// send a single digital pin in a digital message
void FirmataClass::sendDigital(int pin, int value)
{
// TODO add single pin digital messages to the protocol
}
// send 14-bits in a single digital message
void FirmataClass::sendDigitalPortPair(int port, int value)
{
// 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.
// TODO: some math needs to happen for pin > 14 since MIDI channels are used
Serial.print(DIGITAL_MESSAGE | (port & 0xF),BYTE);
Serial.print(value % 128, BYTE); // Tx pins 0-6
Serial.print(value >> 7, BYTE); // Tx pins 7-13
}
// Internal Actions/////////////////////////////////////////////////////////////
void FirmataClass::loadState(void)
{
// TODO load state from EEPROM
}
void FirmataClass::saveState(void)
{
// TODO save state to EEPROM
}
void FirmataClass::resetState(void)
{
// TODO reset state bytes in EEPROM
}
// make one instance for the user to use
FirmataClass Firmata;
|
