[Keyboard] Add stront keyboard (#21035)

keyboards/stront/keymaps/zzeneg/zzeneg_display.h

@@ -0,0 +1,27 @@
+// Copyright 2023 zzeneg (@zzeneg)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "quantum.h"
+
+typedef enum {
+    _QWERTY = 0,
+    _GAME,
+    _EU,
+    _NAV,
+    _NUMBER,
+    _SYMBOL,
+    _FUNC,
+    _SYS,
+} layer_number;
+
+typedef enum {
+    _TIME = 0,
+    _VOLUME,
+    _LAYOUT,
+    _MEDIA_ARTIST,
+    _MEDIA_TITLE,
+} hid_data_type;
+
+void display_process_raw_hid_data(uint8_t *data, uint8_t length);
+void display_process_layer_state(uint8_t layer);
+void display_process_caps_word(bool active);