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 4d4985b..1ad8c2e 100644 (file)
--- 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) {