[PATCH] omoton

[Aditya Garg <gargaditya08@xxxxxxxx>]

---
 drivers/hid/hid-apple.c | 53 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 50 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 4e8b01793..eaafa285a 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -42,6 +42,7 @@
 #define APPLE_BACKLIGHT_CTL	BIT(10)
 #define APPLE_IS_NON_APPLE	BIT(11)
 #define APPLE_MAGIC_BACKLIGHT	BIT(12)
+#define APPLE_IS_OMOTON		BIT(13)
 
 #define APPLE_FLAG_FKEY			0x01
 #define APPLE_FLAG_DONT_TRANSLATE	0x02
@@ -53,6 +54,8 @@
 #define APPLE_MAGIC_REPORT_ID_POWER		3
 #define APPLE_MAGIC_REPORT_ID_BRIGHTNESS	1
 
+#define KEY_F6_OMOTON	0xc0301
+
 static unsigned int fnmode = 3;
 module_param(fnmode, uint, 0644);
 MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
@@ -81,6 +84,8 @@ MODULE_PARM_DESC(swap_fn_leftctrl, "Swap the Fn and left Control keys. "
 		"(For people who want to keep PC keyboard muscle memory. "
 		"[0] = as-is, Mac layout, 1 = swapped, PC layout)");
 
+bool omoton_media_key;
+
 struct apple_non_apple_keyboard {
 	char *name;
 };
@@ -276,6 +281,25 @@ static const struct apple_key_translation powerbook_numlock_keys[] = {
 	{ }
 };
 
+static const struct apple_key_translation omoton_media_keys[] = {
+	{ KEY_F1,	KEY_BRIGHTNESSDOWN },
+	{ KEY_F2,	KEY_BRIGHTNESSUP },
+	{ }
+};
+
+static const struct apple_key_translation omoton_function_keys[] = {
+	{ KEY_SEARCH,		KEY_F3 },
+	{ KEY_EJECTCD,		KEY_F4 },
+	{ KEY_NUMLOCK,		KEY_F5 },
+	{ KEY_PREVIOUSSONG,	KEY_F7 },
+	{ KEY_PLAYPAUSE,	KEY_F8 },
+	{ KEY_NEXTSONG,		KEY_F9 },
+	{ KEY_MUTE,		KEY_F10 },
+	{ KEY_VOLUMEDOWN,	KEY_F11 },
+	{ KEY_VOLUMEUP,		KEY_F12 },
+	{ }
+};
+
 static const struct apple_key_translation apple_iso_keyboard[] = {
 	{ KEY_GRAVE,	KEY_102ND },
 	{ KEY_102ND,	KEY_GRAVE },
@@ -377,6 +401,25 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		real_fnmode = fnmode;
 	}
 
+	/* Omoton KB066 quirk */
+	if (asc->quirks & APPLE_IS_OMOTON) {
+		real_fnmode = 0;
+		if (usage->hid == KEY_F6_OMOTON) 
+			code = KEY_F6;
+
+		if (usage->code == KEY_F6) {
+			if (value == 1)
+				omoton_media_key = !omoton_media_key;
+			code = KEY_UNKNOWN;
+		}
+
+		table = omoton_media_key ? omoton_media_keys : omoton_function_keys;
+		trans = apple_find_translation(table, code);
+
+		if (trans)
+			code = trans->to;
+	}
+
 	if (swap_fn_leftctrl) {
 		trans = apple_find_translation(swapped_fn_leftctrl_keys, code);
 
@@ -511,9 +554,6 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		}
 	}
 
-	if (usage->hid == 0xc0301) /* Omoton KB066 quirk */
-		code = KEY_F6;
-
 	if (usage->code != code) {
 		input_event_with_scancode(input, usage->type, code, usage->hid, value);
 
@@ -701,6 +741,12 @@ static int apple_input_configured(struct hid_device *hdev,
 		asc->quirks |= APPLE_IS_NON_APPLE;
 	}
 
+	if (strncmp(hdev->name, "Bluetooth Keyboard", 18) == 0 &&
+			hdev->product == USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) {
+		hid_info(hdev, "Omoton keyboard detected; use Fn+F6 to toggle between media and function keys\n");
+		asc->quirks |= APPLE_IS_OMOTON;
+	}
+
 	return 0;
 }
 
@@ -897,6 +943,7 @@ static int apple_probe(struct hid_device *hdev,
 	mod_timer(&asc->battery_timer,
 		  jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS));
 	apple_fetch_battery(hdev);
+	omoton_media_key = true;
 
 	if (quirks & APPLE_BACKLIGHT_CTL)
 		apple_backlight_init(hdev);
-- 
2.43.0