2 This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl).
3 Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
4 Smoothie 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 General Public License for more details.
5 You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>.
10 #include "libs/Module.h"
11 #include "libs/Kernel.h"
12 #include "libs/nuts_bolts.h"
13 #include "SerialConsole.h"
14 #include "libs/RingBuffer.h"
15 #include "libs/SerialMessage.h"
17 // Serial reading module
18 // Treats every received line as a command and passes it ( via event call ) to the command dispatcher.
19 // The command dispatcher will then ask other modules if they can do something with it
20 SerialConsole::SerialConsole( PinName rx_pin
, PinName tx_pin
, int baud_rate
) : Serial( rx_pin
, tx_pin
){ //We extend Serial, it is convenient
21 this->baud(baud_rate
);
24 // Called when the module has just been loaded
25 void SerialConsole::on_module_loaded() {
26 // We want to be called every time a new char is received
27 this->attach(this, &SerialConsole::on_serial_char_received
, Serial::RxIrq
);
29 // We only call the command dispatcher in the main loop, nowhere else
30 this->register_for_event(ON_MAIN_LOOP
);
33 // Called on Serial::RxIrq interrupt, meaning we have received a char
34 void SerialConsole::on_serial_char_received(){
36 char received
= this->getc();
37 //On newline, we have received a line, else concatenate in buffer
38 if( received
== '\r' ){ return; }
39 this->buffer
.push_back(received
);
43 // Call event when newline received, for other modules to read the line
44 inline void SerialConsole::line_received(){}
46 // Actual event calling must happen in the main loop because if it happens in the interrupt we will loose data
47 void SerialConsole::on_main_loop(void * argument
){
48 if( this->has_char('\n') ){
53 this->buffer
.pop_front(c
);
55 struct SerialMessage message
;
56 message
.message
= received
;
57 message
.stream
= this;
58 this->kernel
->call_event(ON_CONSOLE_LINE_RECEIVED
, &message
);
67 bool SerialConsole::has_char(char letter
){
68 int index
= this->buffer
.head
;
69 while( index
!= this->buffer
.tail
){
70 if( this->buffer
.buffer
[index
] == letter
){
73 index
= this->buffer
.next_block_index(index
);