Mouse Driver Problems

Lprogster · Post by **Lprogster** » Fri May 18, 2007 6:37 am

Hi all

I have yet another problem... Trying to get input from the mouse.

..See next post...

Thanks yet again,
Lster

Lprogster · Post by **Lprogster** » Fri May 18, 2007 11:26 am

...

Thanks,
Lster

Brynet-Inc · Post by **Brynet-Inc** » Fri May 18, 2007 12:05 pm

Lprogster wrote:Update: I think the mouse is of the USB type - would that make any difference?

Thanks,
Lster

"You think?", If you can't identify a USB connector... Is OSDev for you?

You could always see if your BIOS supports PS/2 legacy emulation..

Shouldn't be that hard to support the native USB connectivity though...
http://www.usb.org/developers/devclass_docs/HID1_11.pdf
http://www.usb.org/developers/hidpage/
http://en.wikipedia.org/wiki/USB_human_ ... vice_class

Lprogster · Post by **Lprogster** » Fri May 18, 2007 12:49 pm

Thanks for links. Brilliant

.

My physical mouse is USB, but I'm using Qemu. That's why I'm not sure about the hardware...

Than you again,
Lster

Brynet-Inc · Post by **Brynet-Inc** » Fri May 18, 2007 1:04 pm

Lprogster wrote:Thanks for links. Brilliant .

My physical mouse is USB, but I'm using Qemu. That's why I'm not sure about the hardware...

Than you again,
Lster

Uhh, Well QEMU is an emulator.. Your host hardware wouldn't make any difference at all.. It's likely emulating a PS/2 mouse to the guest operating system.

pcmattman · Post by **pcmattman** » Fri May 18, 2007 4:20 pm

QEMU emulates a PS/2 mouse. So does Bochs (unless you tell it otherwise).

I know, because I use my cursor in QEMU... my mouse is USB and my OS only supports PS/2 so far. I plan to implement USB soon...

Lprogster · Post by **Lprogster** » Sat May 19, 2007 3:05 am

Are there any tutorials for either PS/2 mouse or USB mouses/ devices? Everything I find, I can't understand!

pcmattman · Post by **pcmattman** » Sat May 19, 2007 7:58 pm

Well, go to my project's sourceforge site, browse the CVS (Go to CPP_Kernel folder) and then look at my mouse driver... It's a hack job but it works.

If you want better code, look at Linux's source, or rewrite mine.

Lprogster · Post by **Lprogster** » Sun May 20, 2007 3:00 am

Thank you loads for that pcmattman. I think it is nearly working, but I keep getting the mouse input to my keyboard_handler (at IRQ1)! This means loads of strange characters on the screen - shouldn't that input go to IRQ12?

Anyone had this problem before?

Thanks,
Lster

pcmattman · Post by **pcmattman** » Sun May 20, 2007 3:15 am

No, my problem was the keyboard data going to IRQ 12 (which is fixed anyway).

Have you mapped the interrupts properly?

Lprogster · Post by **Lprogster** » Sun May 20, 2007 4:52 am

Every thing's OK now... I confused some code... Beware of copy and paste!

Thank you pcmattman - again,
Lster

pcmattman · Post by **pcmattman** » Sun May 20, 2007 5:11 am

No worries!

Lprogster · Post by **Lprogster** » Sun May 20, 2007 5:23 am

One last question though...

...See later...

I hope I'm being coherent enough.

Anyhow - thank you for the code,
Lster

AndrewAPrice · Post by **AndrewAPrice** » Sun May 20, 2007 8:48 am

Lprogster wrote:Why doesn't this work:

You have to initialise the stack.. then there's no reason why it shouldn't work!

Lprogster · Post by **Lprogster** » Sun May 20, 2007 8:53 am

...

Thanks,
Lster