#26 PS/2 mouse issue

[Salvo Isaja]

Reported by Nils Labugt:

Tested floppy + ata on 486 laptop:

[...]
Fat driver installed
Processing module #6 going to exec ELF...
Setting PS/2 mouse handler ...
[PSMOUSE] Unknown code FE
_

Inserting mouse and 3 more lines appears:
[PSMOUSE] Unknown code FF
[PSMOUSE] Unknown code AA
[PSMOUSE] Unknown code 0
_

Floppy only: same result.

The above was booting without mouse connected. When I
boot with mouse connected I do not see this problem.

More results (Pentium MMX desktop this time):

Same mouse problem as above, except no line starting
with [PSMOUSE].

[Salvo Isaja]

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If the issue was also present in 0.0.4, please change the
group to "release 0.0.4". The idea is to isolate bugs
introduced with 0.0.5.

[Hanzac Chen]

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I've committed a fix of this issue, which is to detect if
there's a PS/2 mouse attached.

See if it works ...

[Nils Labugt]

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It boots without mouse, but instead of a "[PSMOUSE] Could
not find a PS/2 mouse!" as I expexted, I get several
"[PSMOUSE] Initialization failed!" sprinkled down the
screen. (Mingled with initializion messages form the other
modules. I don't know how you do that.) I don't know if this
is important.

[Hanzac Chen]

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This is strange ... seems that PSMOUSE_CMD_GETID not failed
if there's no mouse attached. (BTW: that's triggered by
interrupts.)

I'll change the check a bit, see if that helps, also hope it
works :-)

[Hanzac Chen]

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... It's not that simple.
I plan to re-write the ps/2 mouse driver in July. Let's have
this flawed mouse driver temporarily.