Commit | Line | Data |
---|---|---|
df27a6a3 | 1 | /* |
4cff3ded AW |
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. | |
df27a6a3 | 5 | You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>. |
4cff3ded AW |
6 | */ |
7 | ||
8 | #include <string> | |
838b33b4 | 9 | #include <stdarg.h> |
4cff3ded | 10 | using std::string; |
4cff3ded AW |
11 | #include "libs/Module.h" |
12 | #include "libs/Kernel.h" | |
13 | #include "libs/nuts_bolts.h" | |
14 | #include "SerialConsole.h" | |
13e4a3f9 | 15 | #include "libs/RingBuffer.h" |
423df6df | 16 | #include "libs/SerialMessage.h" |
838b33b4 | 17 | #include "libs/StreamOutput.h" |
61134a65 | 18 | #include "libs/StreamOutputPool.h" |
4cff3ded AW |
19 | |
20 | // Serial reading module | |
df27a6a3 | 21 | // Treats every received line as a command and passes it ( via event call ) to the command dispatcher. |
4cff3ded | 22 | // The command dispatcher will then ask other modules if they can do something with it |
838b33b4 | 23 | SerialConsole::SerialConsole( PinName rx_pin, PinName tx_pin, int baud_rate ){ |
da3a10b9 | 24 | this->serial = new mbed::Serial( rx_pin, tx_pin ); |
838b33b4 | 25 | this->serial->baud(baud_rate); |
df27a6a3 | 26 | } |
4cff3ded | 27 | |
4cff3ded AW |
28 | // Called when the module has just been loaded |
29 | void SerialConsole::on_module_loaded() { | |
30 | // We want to be called every time a new char is received | |
da3a10b9 | 31 | this->serial->attach(this, &SerialConsole::on_serial_char_received, mbed::Serial::RxIrq); |
dcc91612 | 32 | query_flag= false; |
4cff3ded AW |
33 | |
34 | // We only call the command dispatcher in the main loop, nowhere else | |
35 | this->register_for_event(ON_MAIN_LOOP); | |
dcc91612 | 36 | this->register_for_event(ON_IDLE); |
38d375e7 AW |
37 | |
38 | // Add to the pack of streams kernel can call to, for example for broadcasting | |
314ab8f7 | 39 | THEKERNEL->streams->append_stream(this); |
4cff3ded | 40 | } |
ca5e9a57 | 41 | |
4cff3ded AW |
42 | // Called on Serial::RxIrq interrupt, meaning we have received a char |
43 | void SerialConsole::on_serial_char_received(){ | |
171061cf | 44 | while(this->serial->readable()){ |
838b33b4 | 45 | char received = this->serial->getc(); |
dcc91612 JM |
46 | if(received == '?') { |
47 | query_flag= true; | |
48 | continue; | |
49 | } | |
50 | if(received == 26) { // ^X | |
51 | halt_flag= true; | |
52 | continue; | |
53 | } | |
06ca20a3 BD |
54 | // convert CR to NL (for host OSs that don't send NL) |
55 | if( received == '\r' ){ received = '\n'; } | |
df27a6a3 | 56 | this->buffer.push_back(received); |
13e4a3f9 | 57 | } |
4cff3ded | 58 | } |
ca5e9a57 | 59 | |
dcc91612 JM |
60 | void SerialConsole::on_idle(void * argument) |
61 | { | |
62 | if(query_flag) { | |
63 | query_flag= false; | |
64 | puts(THEKERNEL->get_query_string().c_str()); | |
65 | } | |
66 | if(halt_flag) { | |
67 | halt_flag= false; | |
68 | THEKERNEL->call_event(ON_HALT, nullptr); | |
69 | } | |
70 | } | |
71 | ||
4cff3ded AW |
72 | // Actual event calling must happen in the main loop because if it happens in the interrupt we will loose data |
73 | void SerialConsole::on_main_loop(void * argument){ | |
13e4a3f9 | 74 | if( this->has_char('\n') ){ |
13e4a3f9 | 75 | string received; |
57775cc4 | 76 | received.reserve(20); |
13e4a3f9 AW |
77 | while(1){ |
78 | char c; | |
79 | this->buffer.pop_front(c); | |
80 | if( c == '\n' ){ | |
df27a6a3 | 81 | struct SerialMessage message; |
b6c86164 AW |
82 | message.message = received; |
83 | message.stream = this; | |
314ab8f7 | 84 | THEKERNEL->call_event(ON_CONSOLE_LINE_RECEIVED, &message ); |
13e4a3f9 AW |
85 | return; |
86 | }else{ | |
87 | received += c; | |
88 | } | |
89 | } | |
90 | } | |
4cff3ded AW |
91 | } |
92 | ||
838b33b4 | 93 | |
836222e7 MM |
94 | int SerialConsole::puts(const char* s) |
95 | { | |
25a021fb | 96 | return fwrite(s, strlen(s), 1, (FILE*)(*this->serial)); |
838b33b4 AW |
97 | } |
98 | ||
99b9ed8a MM |
99 | int SerialConsole::_putc(int c) |
100 | { | |
101 | return this->serial->putc(c); | |
102 | } | |
103 | ||
104 | int SerialConsole::_getc() | |
105 | { | |
106 | return this->serial->getc(); | |
107 | } | |
838b33b4 | 108 | |
edac9072 | 109 | // Does the queue have a given char ? |
13e4a3f9 | 110 | bool SerialConsole::has_char(char letter){ |
ed1517a1 MM |
111 | int index = this->buffer.tail; |
112 | while( index != this->buffer.head ){ | |
13e4a3f9 AW |
113 | if( this->buffer.buffer[index] == letter ){ |
114 | return true; | |
115 | } | |
116 | index = this->buffer.next_block_index(index); | |
117 | } | |
118 | return false; | |
119 | } |