Joypad... disable analog
 

How disable analog with Winuae? I want to use only d-pad.

If you mean default gameports panel joypad selections (which does map both analog and dpad), select one of the custom entries (=customizable) and use remap button to only map d-pad (+fire button).

It is much easier to use Game Ports panel to map events.

If you want to use input panel, you need to set Game Ports to <none> (because it overrides Input panel, "[PORTx]"), set to Configuration #1-3 and then manually map every event one by one.