[PATCH 4.19 144/202] HID: apple: Add 2021 magic keyboard FN key mapping

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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Benjamin Berg <bberg@xxxxxxxxxx>

commit 531cb56972f2773c941499fcfb639cd5128dfb27 upstream.

The new 2021 apple models have a different FN key assignment. Add a new
translation table and use that for the 2021 magic keyboard.

Signed-off-by: Benjamin Berg <bberg@xxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Cc: Aseda Aboagye <aaboagye@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/hid/hid-apple.c |   29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -73,6 +73,28 @@ struct apple_key_translation {
 	u8 flags;
 };
 
+static const struct apple_key_translation apple2021_fn_keys[] = {
+	{ KEY_BACKSPACE, KEY_DELETE },
+	{ KEY_ENTER,	KEY_INSERT },
+	{ KEY_F1,	KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
+	{ KEY_F2,	KEY_BRIGHTNESSUP,   APPLE_FLAG_FKEY },
+	{ KEY_F3,	KEY_SCALE,          APPLE_FLAG_FKEY },
+	{ KEY_F4,	KEY_SEARCH,         APPLE_FLAG_FKEY },
+	{ KEY_F5,	KEY_MICMUTE,        APPLE_FLAG_FKEY },
+	{ KEY_F6,	KEY_SLEEP,          APPLE_FLAG_FKEY },
+	{ KEY_F7,	KEY_PREVIOUSSONG,   APPLE_FLAG_FKEY },
+	{ KEY_F8,	KEY_PLAYPAUSE,      APPLE_FLAG_FKEY },
+	{ KEY_F9,	KEY_NEXTSONG,       APPLE_FLAG_FKEY },
+	{ KEY_F10,	KEY_MUTE,           APPLE_FLAG_FKEY },
+	{ KEY_F11,	KEY_VOLUMEDOWN,     APPLE_FLAG_FKEY },
+	{ KEY_F12,	KEY_VOLUMEUP,       APPLE_FLAG_FKEY },
+	{ KEY_UP,	KEY_PAGEUP },
+	{ KEY_DOWN,	KEY_PAGEDOWN },
+	{ KEY_LEFT,	KEY_HOME },
+	{ KEY_RIGHT,	KEY_END },
+	{ }
+};
+
 static const struct apple_key_translation macbookair_fn_keys[] = {
 	{ KEY_BACKSPACE, KEY_DELETE },
 	{ KEY_ENTER,	KEY_INSERT },
@@ -207,7 +229,9 @@ static int hidinput_apple_event(struct h
 	}
 
 	if (fnmode) {
-		if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
+		if (hid->product == USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021)
+			table = apple2021_fn_keys;
+		else if (hid->product >= USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI &&
 				hid->product <= USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS)
 			table = macbookair_fn_keys;
 		else if (hid->product < 0x21d || hid->product >= 0x300)
@@ -366,6 +390,9 @@ static void apple_setup_input(struct inp
 	for (trans = apple_iso_keyboard; trans->from; trans++)
 		set_bit(trans->to, input->keybit);
 
+	for (trans = apple2021_fn_keys; trans->from; trans++)
+		set_bit(trans->to, input->keybit);
+
 	if (swap_fn_leftctrl) {
 		for (trans = swapped_fn_leftctrl_keys; trans->from; trans++)
 			set_bit(trans->to, input->keybit);






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