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PCjs can now connect a serial port to the console

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This commit is contained in:
Jeff Parsons 2015-10-15 12:56:07 -07:00
commit 464219a4c1
6 changed files with 367 additions and 117 deletions
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29
modules/pcjs/lib/serialport.js
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@ -33,6 +33,7 @@
"use strict";
if (NODE) {
var str = require("../../shared/lib/strlib");
var web = require("../../shared/lib/weblib");
var Component = require("../../shared/lib/component");
var Messages = require("./messages");
@ -79,9 +80,17 @@ function SerialPort(parmsSerial) {
Component.warning("Unrecognized serial adapter #" + this.iAdapter);
return;
}
/**
* consoleOutput becomes a string that records serial port output if the 'binding' property is set to the
* reserved name "console". Nothing is written to the console, however, until a linefeed (0x0A) is output
* or the string length reaches a threshold (currently, 1024 characters).
*
* @type {string|null}
*/
this.consoleOutput = null;
/**
* controlIOBuffer is a DOM element, if any, bound to the port (currently for output purposes only; see echoByte())
* controlIOBuffer is a DOM element, if any, bound to the port (currently used for output only; see echoByte()).
*
* @type {Object}
*/
@ -89,7 +98,15 @@ function SerialPort(parmsSerial) {
Component.call(this, "SerialPort", parmsSerial, SerialPort, Messages.SERIAL);
Component.bindExternalControl(this, parmsSerial['binding'], SerialPort.sIOBuffer);
var sBinding = parmsSerial['binding'];
if (sBinding == "console") {
this.consoleOutput = "";
} else {
/*
* NOTE: If sBinding is not the name of a valid Control Panel DOM element, this call does nothing.
*/
Component.bindExternalControl(this, sBinding, SerialPort.sIOBuffer);
}
}
/*
@ -787,6 +804,14 @@ SerialPort.prototype.echoByte = function(b)
}
return true;
}
if (this.consoleOutput != null) {
this.consoleOutput += String.fromCharCode(b);
if (b == 0x0A || this.consoleOutput.length >= 1024) {
this.println(str.trim(this.consoleOutput));
this.consoleOutput = "";
}
return true;
}
return false;
};