From: Vojtech Pavlik <vojtech@suse.cz>
Date: Mon, 5 Sep 2005 05:11:41 +0000 (-0500)
Subject: Input: atkbd - handle keyboards generating scancode 0x7f
X-Git-Tag: firefly_0821_release~41282^2~13
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=903b126bffb77dc313b7c2971880df408bf41a9e;p=firefly-linux-kernel-4.4.55.git

Input: atkbd - handle keyboards generating scancode 0x7f

Extend bat_xl handling to do err_xl handling, so that
keyboards using 0x7f scancode for regular keys can work.

Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 4d4985b59abf..1ad8c2ee7dbf 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -208,6 +208,7 @@ struct atkbd {
 	unsigned char resend;
 	unsigned char release;
 	unsigned char bat_xl;
+	unsigned char err_xl;
 	unsigned int last;
 	unsigned long time;
 };
@@ -296,15 +297,18 @@ static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data,
 		if (atkbd->emul ||
 		    !(code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1 ||
 		      code == ATKBD_RET_HANGUEL || code == ATKBD_RET_HANJA ||
-		      code == ATKBD_RET_ERR ||
+		     (code == ATKBD_RET_ERR && !atkbd->err_xl) ||
 	             (code == ATKBD_RET_BAT && !atkbd->bat_xl))) {
 			atkbd->release = code >> 7;
 			code &= 0x7f;
 		}
 
-		if (!atkbd->emul &&
-		     (code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
+		if (!atkbd->emul) {
+		     if ((code & 0x7f) == (ATKBD_RET_BAT & 0x7f))
 			atkbd->bat_xl = !atkbd->release;
+		     if ((code & 0x7f) == (ATKBD_RET_ERR & 0x7f))
+			atkbd->err_xl = !atkbd->release;
+		}
 	}
 
 	switch (code) {