usb: add numeric keypad support to HID driver
When keys are pressed on the numeric keypad, emit key codes for the numbers,
operators, dot and enter.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index aaf7d6f..2472d25 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -87,6 +87,12 @@
'|', '~', ':', '"', '~', '<', '>', '?'
};
+static const unsigned char usb_kbd_num_keypad[] = {
+ '/', '*', '-', '+', '\r',
+ '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
+ '.', 0, 0, 0, '='
+};
+
/*
* NOTE: It's important for the NUM, CAPS, SCROLL-lock bits to be in this
* order. See usb_kbd_setled() function!
@@ -218,6 +224,10 @@
keycode = usb_kbd_numkey[scancode - 0x1e];
}
+ /* Numeric keypad */
+ if ((scancode >= 0x54) && (scancode <= 0x67))
+ keycode = usb_kbd_num_keypad[scancode - 0x54];
+
if (data->flags & USB_KBD_CTRL)
keycode = scancode - 0x3;