Re: Send A Fake PS/2 Packet to QEMU and Mouse Pointer on PV OS

["\"涂堂訓(Tang-Hsun Tu)\"" <iwantplay@gmail.com>]

  Dear all:

      For the question1, I try to use the function ps2_queue() to send a 
PS/2 "keyboard" packet, and it works fine.
But the PS/2 mouse still cannot work. Does QEMU use a USB mouse and not 
support a PS/2 mouse?

於 2010/9/20 下午 07:19, "涂堂訓(Tang-Hsun Tu)" 提到:
>  Dear all:
>
>       I am trying to send a fake event to input layer of QEMU,
> i.e. keyboard and mouse.
>
>       QEMU provides two API to send these input event,
> that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and 
> mouse, respectively.
> And these functions will make a suitable packet for low-level 
> hardware, e.g. PS/2 or USB.
>
>       For a PS/2 mouse, there is a call chain  ps2_mouse_event() => 
> ps2_mouse_send_packet() => ps2_queue()
> when the function kbd_mouse_event() is called.
> However, when I make a fake PS/2 mouse packet and directly call 
> ps2_queue()
> to put the packet to PS/2 queue.
> I store the PS2MouseState "s" when 8042 initializes and call 
> ps2_queue() to send a event,
> for example,
>           ps2_queue(&s->common, 0x1001);
>           ps2_queue(&s->common, 0);
>           ps2_queue(&s->common, 0);
>
> And I also insert some debug  message in ps2_read_data() function,
> it works well and reads data from queue correctly..
> But the mouse pointer does not move (even right/left click).
> I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse" in QEMU 
> consloe,
> but the result is the same. What else I forgot to signal? How could I 
> fix it?
>
>
>        The second question is when I create a PV Linux (Ubuntu),
> the mouse pointer does not move correctly.
> The screen (VNC) shows a black point and a mouse pointer,
> and their speed does not the same.
> In HVM XP, we can use usbdevice='tablet' to fix it,
> but the same line does not work in PV Linux. How could I fix it?
>
>
>       The last question is that does the sound can be shared (mixed) 
> between multiple DomainUs?
> (The device will be busy when I create a domain.) If can, how could I do?
>
>
>      Thanks!
>
> Best Regards,
> Tang-Hsun Tu