Re: FYI: ACPI 'sleep 1' resets atkbd keycodes

[Vojtech Pavlik <vojtech-AlSwsSmVLrQ@public.gmane.org>]

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On Sun, Jan 25, 2004 at 11:37:19AM +0200, P. Christeas wrote:

> This may be just a minor issue:
> I had to use the setkeycodes utility to enable some extra keys (that weren't 
> mapped by kernel's atkbd tables).
> After waking from sleep 1, those keys were reset. That is, I had to use 
> 'setkeycodes' again to customize the tables again.
> 
> IMHO the way kernel works now is correct. It should *not* have extra code just 
> to handle that. Just make sure anybody that alters his kbd tables puts some 
> extra script to recover the tables after an ACPI wake.
> This should be more like a note to Linux distributors.
> 
> Have a nice day.

Patch attached, please test. It'll make it into 2.6.3, with some luck
even 2.6.2.

-- 
Vojtech Pavlik
SuSE Labs, SuSE CR

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ChangeSet-SdAw1wE8/5A@public.gmane.org, 2004-01-25 12:58:24+01:00, vojtech@ucw.cz
  input: Bail out in atkbd.c if scancode set is changed, don't
         reinitialize scancode map. This is even more anoying than
         a new keyboard device in the unlikely case of set change.


 atkbd.c |   37 ++++++-------------------------------
 1 files changed, 6 insertions(+), 31 deletions(-)


diff -Nru a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
--- a/drivers/input/keyboard/atkbd.c	Sun Jan 25 12:59:07 2004
+++ b/drivers/input/keyboard/atkbd.c	Sun Jan 25 12:59:07 2004
@@ -743,43 +743,18 @@
 	struct serio_dev *dev = serio->dev;
 	int i;
 
-        if (!dev) {
-                printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
-                return -1;
-        }
+	if (!dev) {
+		printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n");
+		return -1;
+	}
 
 	if (atkbd->write) {
 		if (atkbd_probe(atkbd))
 			return -1;
-
-		atkbd->set = atkbd_set_3(atkbd);
+		if (atkbd->set != atkbd_set_3(atkbd))
+			return -1;
 		atkbd_enable(atkbd);
-	} else {
-		atkbd->set = 2;
-		atkbd->id = 0xab00;
 	}
-
-	/*
-	 * Here we probably should check if the keyboard has the same set that
-         * it had before and bail out if it's different. But this will most likely
-         * cause new keyboard device be created... and for the user it will look
-         * like keyboard is lost
-	 */
-
-	if (atkbd->translated) {
-		for (i = 0; i < 128; i++) {
-			atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]];
-			atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80];
-		}
-	} else if (atkbd->set == 2) {
-		memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode));
-	} else {
-		memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode));
-	}
-
-	for (i = 0; i < 512; i++)
-		if (atkbd->keycode[i] && atkbd->keycode[i] < 255)
-			set_bit(atkbd->keycode[i], atkbd->dev.keybit);
 
 	return 0;
 }