Suppressing softrepeat

[Pete Zaitcev <zaitcev@redhat.com>]

Add the "nosoftrepeat" parameter. This is useful if a "dumb" keyboard
has (unswitcheable) hardware repeat, like in Dell DRAC3.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>

---

Hi, Dmitry,

Dell people passed on a request to add a new parameter, "nosoftrepeat",
to i8042 (in atkbd.c). So, if I understand right, things should work so:

 - None set in grub.conf: Softrepeat is set by the driver as detected
   or derived. This is the default.
 - "softrepeat" set: Softrepeat is on, regardless
 - "nosoftrepeat" set: Softrepeat is off, regardless
 - Both "softrepeat" and "nosoftrepeat" are set: Do not do that.

The code looked confusing, but there is an good explanation in this bug:
 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=181457

In short words, DRAC3 "plugs into" the keyboard connector, but does not
emulate output, so we detect this as "dumb" keyboard and enable softrepeat.
But softrepeat causes double keypresses.

I suppose we could revamp the old softrepeat parameter to be more than
a boolean, but I see no point.

If you agree, please include the attached.

-- Pete

--- linux-2.6.16-rc2/drivers/input/keyboard/atkbd.c	2006-02-11 00:31:41.000000000 -0800
+++ linux-2.6.16-rc2-lem/drivers/input/keyboard/atkbd.c	2006-02-21 11:53:53.000000000 -0800
@@ -50,6 +50,10 @@ static int atkbd_softrepeat;
 module_param_named(softrepeat, atkbd_softrepeat, bool, 0);
 MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat");
 
+static int atkbd_nosoftrepeat;
+module_param_named(nosoftrepeat, atkbd_nosoftrepeat, bool, 0);
+MODULE_PARM_DESC(nosoftrepeat, "Do not use software keyboard repeat");
+
 static int atkbd_softraw = 1;
 module_param_named(softraw, atkbd_softraw, bool, 0);
 MODULE_PARM_DESC(softraw, "Use software generated rawmode");
@@ -862,7 +866,7 @@ static int atkbd_connect(struct serio *s
 	atkbd->softrepeat = atkbd_softrepeat;
 	atkbd->scroll = atkbd_scroll;
 
-	if (!atkbd->write)
+	if (!atkbd->write && !atkbd_nosoftrepeat)
 		atkbd->softrepeat = 1;
 
 	if (atkbd->softrepeat)