Re: [microblaze-uclinux] PS2 Keyboard with Petalinux and XPS_PS2

[feddischson <feddischson@xxxxxxx>]

Hello again,

I found one problem.  It chose the wrong interrupt of xps_ps2.

But I have still a problem:

In addtion to what I described,  I have a frame-buffer device, which  
works fine.

I added

	CONFIG_VT
	CONFIG_VT_CONSOLE
	CONFIG_FRAMEBUFFER_CONSOLE

and I have a serial connection to the board, which I use to login.

I expected, that I get a virtual terminal, which I can use to login  
vie PS2/Keyboard and framebuffer-console.
On the monitor, I can see all the kernel messages. If I press some  
keys on the keyboard, I can see it on the monitor  (but there is no  
login)

There is also only one "/dev/tty", which I think is the current tty of  
the process.

On the serial terminal
	echo "hello" > /dev/tty
prints "hello"  back to the serial terminal.
The same with /dev/ttyUL0

I can also do a
	echo "hello" > /dev/console
which prints "hello" on the monitor

and
	cat /dev/console > /dev/ttyUL0
which prints everything, what I write on the PS2- keyboard on my  
serial terminal.

Some proc-info:


# cat /proc/devices
Character devices:
  1 mem
  4 /dev/vc/0
  4 tty
  5 /dev/tty
  5 /dev/console
  5 /dev/ptmx
  7 vcs
 10 misc
 13 input
 29 fb
 90 mtd
128 ptm
136 pts
204 ttyUL

Block devices:
  1 ramdisk
 31 mtdblock



# cat /proc/tty/drivers
/dev/tty             /dev/tty        5       0 system:/dev/tty
/dev/console         /dev/console    5       1 system:console
/dev/ptmx            /dev/ptmx       5       2 system
/dev/vc/0            /dev/vc/0       4       0 system:vtmaster
uartlite             /dev/ttyUL    204 187-190 serial
pty_slave            /dev/pts      136 0-1048575 pty:slave
pty_master           /dev/ptm      128 0-1048575 pty:master
unknown              /dev/tty        4 1-63 console



My question ist, why is there no tty entry in /dev/ for the keyboard  
(with framebuffer)  like /dev/tty0
and how can I use the keyboard for login?


Many thanks

Feddischson




On Jul 24, 2009, at 10:31 PM, feddischson wrote:

> Hello,
>
>
> I'm trying to get a PS2 keyboard working with my petalinux.
>
> I added the xps_ps2 core and adapted the xilinx_ps2 driver like Hans  
> described it here:
> http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/archive/2008/05/msg00244.html
>
> In addition, I added KEYBOARD_ATKBD driver.
> When I boot the kernel, I get
>
>     xilinx_ps2 xilinx_ps2.0: Xilinx PS2 at 0x86A00000 mapped to  
> 0x86a00000, irq=0
>
> and
>
>
>     atkbd.c: keyboard reset failed on xilinxps2/serio at 86A00000
>     atkbd.c: keyboard reset failed on xilinxps2/serio at 86A00000
>
> That confused me and I added some debug output.
>
> I can see, that the atkbd driver first tries to read from the  
> keyboard and then writes
> the reset code, the Read ID code and Set/Reset LEDs code.
> After that,  I get the the message from the atkbd driver.
>
>
> Is the atkbd driver the right one and can I ignore this messages?
> And if so,  what is additional necessary to get the keyboard working?
>
> Thanks,
>
> Feddischson
>
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