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ps2: Don't send key release event for Lang1, Lang2 keys 

The scancodes for the Lang1 and Lang2 keys (i.e. Hangeul, Hanja) are
special since they already have the 0x80 bit set which is commonly used
to indicate a key release in AT set 1. Reportedly, real hardware does
not send a key release scancode. So, skip sending a release for these
keys. This ensures that Windows behaves correctly and interprets it as a
single keypress rather than two consecutive keypresses.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
master
Ross Lagerwall 2023-02-27 17:33:08 +00:00 committed by Daniel P. Berrangé
parent ac19b51678
commit 92f4a21d91
1 changed files with 6 additions and 0 deletions
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6
hw/input/ps2.c
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@ -402,6 +402,9 @@ static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
ps2_put_keycode(s, 0xaa);
}
}
} else if ((qcode == Q_KEY_CODE_LANG1 || qcode == Q_KEY_CODE_LANG2)
&& !key->down) {
/* Ignore release for these keys */
} else {
if (qcode < qemu_input_map_qcode_to_atset1_len) {
keycode = qemu_input_map_qcode_to_atset1[qcode];
@ -497,6 +500,9 @@ static void ps2_keyboard_event(DeviceState *dev, QemuConsole *src,
ps2_put_keycode(s, 0x12);
}
}
} else if ((qcode == Q_KEY_CODE_LANG1 || qcode == Q_KEY_CODE_LANG2) &&
!key->down) {
/* Ignore release for these keys */
} else {
if (qcode < qemu_input_map_qcode_to_atset2_len) {
keycode = qemu_input_map_qcode_to_atset2[qcode];