using the ps2 device library

Forum 2005-2010 (read only) Software Syntax & Programs
1

I'm currently trying to compile the example to see if it will work however I get strange errors when i try to.
The library can be downloaded at Arduino Playground - Ps2mouse

The example code was

#include "ps2dev.h"


PS2dev mouse(3,2); // 2 data 3clock


char buttons[3] = {0,0,0};


int delta_x = 0;
int delta_y = 0;
 //we start off not enabled

int enabled =0;

//ack a host command

void ack()
 {

  while(mouse.write(0xFA));

}



void write_packet()
 {
 
 char overflowx =0;

  char overflowy =0;

  char data[3];
  int x,y;
 
 
  if (delta_x > 255) {

    overflowx =1;

    x=255;

  }
 
 if (delta_x < -255)
 {

    overflowx = 1;

    x=-255;

  }
  
  if (delta_y > 255)
 {

    overflowy =1;

    y=255;

  }

  if
 (delta_y < -255)
 {

    overflowy = 1;

    y=-255;
  }

  
  data[0] = ((overflowy & 1) << 7) |
    ( (overflowx & 1) << 6) |
    ( (((delta_y &0x100)>>8) & 1) << 5) |
    ( ( ((delta_x &0x100)>>8)& 1) << 4) |
    ( ( 1) << 3) |
    ( ( buttons[1] & 1) << 2) |
    ( ( buttons[2] & 1) << 1) |
    ( ( buttons[0] & 1) << 0) ;

    
  data[1] = delta_x & 0xff;

  data[2] = delta_y & 0xff;

  
  mouse.write(data[0]);

  mouse.write(data[1]);


  mouse.write(data[2]);


  delta_x = 0;

  delta_y = 0;

}


int mousecommand(int command)
 {

  unsigned char val;

  //This implements enough mouse commands to get by, most of them are
  //just acked without really doing anything


  switch (command)
 {

  case 0xFF: //reset

    ack();
    //the while loop lets us wait for the host to be ready

    while(mouse.write(0xAA)!=0);
  
    while(mouse.write(0x00)!=0);

  
    break;
  case 0xFE: //resend

    ack();

    break;

  case 0xF6: //set defaults 
    //enter stream mode
   
    ack();

    break;

  case 0xF5:  //disable data reporting

    //FM

    ack();

    break;
  case 0xF4: //enable data reporting
    //FM
 
   enabled = 1;

    ack();
 
   break;

  case 0xF3: //set sample rate

    ack();

    mouse.read(&val); // for now drop the new rate on the floor
    //
      Serial.println(val,HEX);

    ack();

    break;
  case 0xF2: //get device id
    ack();
    mouse.write(00);
    break;
  case 0xF0: //set remote mode 
    ack();  
    break;
  case 0xEE: //set wrap mode
    ack();
    break;
  case 0xEC: //reset wrap mode
    ack();
    break;
  case 0xEB: //read data
    ack();
    write_packet();
    break;
  case 0xEA: //set stream mode
    ack();
    break;
  case 0xE9: //status request
    ack();
    //      send_status();
    break;
  case 0xE8: //set resolution
    ack();
    mouse.read(&val);
    //    Serial.println(val,HEX);
    ack();
    break;
  case 0xE7: //set scaling 2:1
    ack();
    break;
  case 0xE6: //set scaling 1:1
    ack();
    break;

  } 
  
}

int xcenter ;
int ycenter;

int xsum = 0;
int ysum = 0;

void setup() {
  unsigned char val;
 
  // send the mouse start up
  while(mouse.write(0xAA)!=0);  
  while(mouse.write(0x00)!=0);


}




void loop() {
  unsigned char  c;
  if( (digitalRead(3)==LOW) || (digitalRead(2) == LOW)) {
    while(mouse.read(&c)) ;
    mousecommand(c);
  } 

  if (enabled) {
    // move the mouse diagonally
    delta_x = 1;
    delta_y = 1;
    write_packet()  ;
  }
  delay(50);

}

And I get the following error when I compile it

c:/users/bucolo/desktop/arduino-0017/hardware/tools/avr/lib/gcc/../../avr/include/stdlib.h:111: error: expected unqualified-id before 'int'

c:/users/bucolo/desktop/arduino-0017/hardware/tools/avr/lib/gcc/../../avr/include/stdlib.h:111: error: expected `)' before 'int'

c:/users/bucolo/desktop/arduino-0017/hardware/tools/avr/lib/gcc/../../avr/include/stdlib.h:111: error: expected `)' before 'int'

Bad error line: -2

Help would be greately appreciated.

2

Getting the same error :frowning:

I'm clueless.

3

Give this a try...

  • Open ps2dev.h in an editor like Notepad or Visual Studio
  • Comment out the line with #include "WConstants.h"
  • After that line add a new line with #include <WProgram.h>
  • Save ps2dev.h
  • Try again

This is a snippet around the two lines...

#define ps2dev_h

// #include "WConstants.h"
#include <WProgram.h>

class PS2dev
{
      public:
4

Thanks for the reply.

Actually i tried this earlier kindof. I commented out #include "WConstants.h" and it compiled without errors, i didnt add the other include file though, will try that. I didn't get the library to work but I'll continue to try tomorrow.

I assume clock and data goes to digital pings, ground to ground, and 5 volt should be unconnected since arduino gets its own poweR?

5

I commented out #include "WConstants.h" and it compiled without errors

Huh. I didn't think to try that. I assumed something in the header needed an Arduino definition.

i didnt add the other include file though, will try that

Don't bother. If the Sketch compiled, you're good to go.

I assume clock and data goes to digital pings, ground to ground, and 5 volt should be unconnected since arduino gets its own poweR?

I have no idea. Someone else will have to help with that question.

6

Hey!

I'm following this.
Changed WConstants to WProgram and it worked for the ps2mouse example which comes with the library zip.

Now, my point is to interface with a keyboard using this ps2dev library:

< keyboard --(4 wires)-- arduino > --- RF --- < arduino --(ps2 output)-- PC >

ALL the keyboard libraries I found are full of bugs (like this constants to program that I cant handle by my own).

ok, I found this tutorial that I thought could help me understanding the code:

it points to an arduino code:
*http://awgh.org/files/iPhonePS2.txt

*changed ps2 to ps2dev.

However now here is a new error with the 'PS2dev::read()'
error: no matching function for call to 'PS2dev::read()'/Applications/Arduino.app/Contents/Resources/Java/hardware/libraries/ps2dev/ps2dev.h:21: note: candidates are: int PS2dev::read(unsigned char*)

I think, in this case, I cant comment all statements wich says class::read()...for instance, the INIT void:

void kbd_init()
{
char ack;

kbd.write(0xff); // send reset code
ack = kbd.read(); // byte, kbd does self test
ack = kbd.read(); // another ack when self test is done
}

I can't go further... =/

what is happening? Is there any library really working?

Thanks :wink:
Btp~