[PATCH] correct keymapping on Powerbook built-in USB ISO keyboards

similar to the version in adbhid_input_register(): The '<>' key and the
'^°' key on a german keyboard is swapped.  Provide correct keys to
userland, external USB keyboards will not work correctly when the
'badmap'/'goodmap' workarounds from xkeyboard-config are used.

It is expected that distributions drop the badmap/goodmap part from
keycodes/macintosh in the xkeyboard-config package.

This is probably 2.6.18.x material, if major distros settle on 2.6.18.
Signed-off-by: Olaf Hering <olh@suse.de>
Cc: Greg KH <greg@kroah.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

drivers/usb/input/hid-core.c

@@ -1734,10 +1734,10 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_APPLE, 0x020E, HID_QUIRK_POWERBOOK_HAS_FN },
 	{ USB_VENDOR_ID_APPLE, 0x020F, HID_QUIRK_POWERBOOK_HAS_FN },
 	{ USB_VENDOR_ID_APPLE, 0x0214, HID_QUIRK_POWERBOOK_HAS_FN },
-	{ USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x0215, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
 	{ USB_VENDOR_ID_APPLE, 0x0216, HID_QUIRK_POWERBOOK_HAS_FN },
 	{ USB_VENDOR_ID_APPLE, 0x0217, HID_QUIRK_POWERBOOK_HAS_FN },
-	{ USB_VENDOR_ID_APPLE, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN },
+	{ USB_VENDOR_ID_APPLE, 0x0218, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_POWERBOOK_ISO_KEYBOARD},
 	{ USB_VENDOR_ID_APPLE, 0x0219, HID_QUIRK_POWERBOOK_HAS_FN },
 	{ USB_VENDOR_ID_APPLE, 0x030A, HID_QUIRK_POWERBOOK_HAS_FN },
 	{ USB_VENDOR_ID_APPLE, 0x030B, HID_QUIRK_POWERBOOK_HAS_FN },

drivers/usb/input/hid-input.c

@@ -123,6 +123,12 @@ static struct hidinput_key_translation powerbook_numlock_keys[] = {
 	{ }
 };
 
+static struct hidinput_key_translation powerbook_iso_keyboard[] = {
+	{ KEY_GRAVE,    KEY_102ND },
+	{ KEY_102ND,    KEY_GRAVE },
+	{ }
+};
+
 static int usbhid_pb_fnmode = 1;
 module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
 MODULE_PARM_DESC(pb_fnmode,
@@ -197,6 +203,14 @@ static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
 		}
 	}
 
+	if (hid->quirks & HID_QUIRK_POWERBOOK_ISO_KEYBOARD) {
+		trans = find_translation(powerbook_iso_keyboard, usage->code);
+		if (trans) {
+			input_event(input, usage->type, trans->to, value);
+			return 1;
+		}
+	}
+
 	return 0;
 }
 
@@ -212,6 +226,9 @@ static void hidinput_pb_setup(struct input_dev *input)
 
 	for (trans = powerbook_numlock_keys; trans->from; trans++)
 		set_bit(trans->to, input->keybit);
+
+	for (trans = powerbook_iso_keyboard; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
 }
 #else
 static inline int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,

drivers/usb/input/hid.h

@@ -260,6 +260,7 @@ struct hid_item {
 #define HID_QUIRK_POWERBOOK_HAS_FN		0x00001000
 #define HID_QUIRK_POWERBOOK_FN_ON		0x00002000
 #define HID_QUIRK_INVERT_HWHEEL			0x00004000
+#define HID_QUIRK_POWERBOOK_ISO_KEYBOARD	0x00010000
 
 /*
  * This is the global environment of the parser. This information is