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USB Mouse interface update 

Additional comments, more readable for contributors.
This commit is contained in:
Charles Mangin 2017-07-03 10:55:21 -04:00
parent 936a7dd66c
commit 5ebb744689
1 changed files with 40 additions and 48 deletions
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88
USB Mouse Interface/arduino/USBMouseInterface/USBMouseInterface.ino
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@ -4,7 +4,16 @@
Mac Plus: 4+
Apple IIe (MousePaint): 6-8
Apple IIc: ?
Two options for emulating variable speed mouse movement:
1 - Change quadtrature wavelength/frequency based on movement speed (distance/time).
2 - Multiply single movement by distance moved in fixed polling time.
Opted for option 2 after 1 proved to be too touchy. May go back to 1 since the new hardware is more stable than prototype.
*/
@ -27,13 +36,17 @@ int XDIR = 1;
int YMOVE = 2;
int YDIR = 0;
int CLICKPIN = 4;
long XDELAY;
long YDELAY;
long MOVEMENTBASE = 20;
long MOVEMENTBASE = 20; // "tracking speed" determines how quickly to update the quadrature square wave
int MOVEMENTFACTORX = 0;
int MOVEMENTFACTORY = 0;
int MOVEMENTTHRESHOLD = 0;
int MOVEMENTDENOM = 8;
int MOVEMENTTHRESHOLD = 0; // minimum movement required before triggering a movemouse action
int MOVEMENTDENOM = 8; // movement speed factor
class MouseRptParser : public MouseReportParser
{
@ -49,20 +62,15 @@ class MouseRptParser : public MouseReportParser
void MouseRptParser::OnMouseMove(MOUSEINFO *mi)
{
// XDELAY = MOVEMENTBASE + (1 - (abs(mi->dX) / 255.000)) * MOVEMENTFACTOR;
// YDELAY = MOVEMENTBASE + (1 - (abs(mi->dY) / 127.000)) * MOVEMENTFACTOR;
// Serial.print("dx=");
// Serial.println(XDELAY);
// Serial.print(" dy=");
// Serial.println(YDELAY);
// delayMicroseconds(XDELAY);
MOVEMENTFACTORX = 1 + (abs(mi->dX)) / MOVEMENTDENOM;
MOVEMENTFACTORX = 1 + (abs(mi->dX)) / MOVEMENTDENOM; // repeat the MouseMove (movement distance)/(movement speed factor) times
//Serial.println(MOVEMENTFACTOR);
for (int i = 0; i < MOVEMENTFACTORX; i++) {
if (mi->dX > MOVEMENTTHRESHOLD) {
if (mi->dX > MOVEMENTTHRESHOLD) {
/* if the mouse moved enough to trigger the move event. Zero threshold results in jittering,
* higher thresholds mean slow movements aren't tracked at all.
*/
delayMicroseconds(MOVEMENTBASE);
digitalWrite(XMOVE, HIGH);
@ -72,7 +80,18 @@ void MouseRptParser::OnMouseMove(MOUSEINFO *mi)
digitalWrite(XMOVE, LOW);
delayMicroseconds(MOVEMENTBASE);
digitalWrite(XDIR, LOW);
/*
This roughly equates to bitbanging a quadtrature square wave. It's ugly, but it works, ish.
See http://m0100.com/ for a quick explanation of how the M0100 mouse works, and what the host computer is expecting to see.
.___.
_| |___ X-MOVEMENT
.___.
___| |_ X-DIRECTION
*/
}
if (mi->dX < -1 * MOVEMENTTHRESHOLD) {
delayMicroseconds(MOVEMENTBASE);
@ -114,34 +133,6 @@ void MouseRptParser::OnMouseMove(MOUSEINFO *mi)
}
}
/*
XDIR = XMOVE = LOW
if X > 0
XMOVE HIGH
delay
XDIR HIGH
delay
XMOVE LOW
delay
XDIR LOW
else if X < 0
XDIR HIGH
delay
XMOVE HIGH
delay
XDIR LOW
delay
XMOVE LOW
*/
};
void MouseRptParser::OnLeftButtonUp (MOUSEINFO *mi)
@ -158,7 +149,7 @@ void MouseRptParser::OnRightButtonUp (MOUSEINFO *mi)
{
// Serial.println("R Butt Up");
};
void MouseRptParser::OnRightButtonDown (MOUSEINFO *mi)
void MouseRptParser::OnRightButtonDown (MOUSEINFO *mi) // changes "tracking speed" variable on right click
{
if (MOVEMENTBASE < 200) {
@ -197,12 +188,17 @@ void setup()
/* Serial.begin( 115200 );
/* SERIAL FOR DEBUGGING
Serial.begin( 115200 );
#if !defined(__MIPSEL__)
while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
#endif
Serial.println("Start");
*/
if (Usb.Init() == -1)
Serial.println("OSC did not start.");
@ -212,16 +208,12 @@ void setup()
HidMouse.SetReportParser(0, (HIDReportParser*)&Prs);
digitalWrite(XMOVE, LOW);
digitalWrite(XDIR, LOW);
digitalWrite(YMOVE, LOW);
digitalWrite(YDIR, LOW);
digitalWrite(CLICKPIN, HIGH);
}
void loop()