diff --git a/include/input/InputEventLabels.h b/include/input/InputEventLabels.h
index b327d76..ec2de61 100644
--- a/include/input/InputEventLabels.h
+++ b/include/input/InputEventLabels.h
@@ -19,6 +19,7 @@
 
 #include <input/Input.h>
 #include <android/keycodes.h>
+#include <unordered_map>
 
 #define DEFINE_KEYCODE(key) { #key, AKEYCODE_##key }
 #define DEFINE_AXIS(axis) { #axis, AMOTION_EVENT_AXIS_##axis }
@@ -35,428 +36,435 @@
     int value;
 };
 
+// NOTE: If you add a new keycode here you must also add it to several other files.
+//       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
+#define KEYCODES_SEQUENCE \
+    DEFINE_KEYCODE(UNKNOWN), \
+    DEFINE_KEYCODE(SOFT_LEFT), \
+    DEFINE_KEYCODE(SOFT_RIGHT), \
+    DEFINE_KEYCODE(HOME), \
+    DEFINE_KEYCODE(BACK), \
+    DEFINE_KEYCODE(CALL), \
+    DEFINE_KEYCODE(ENDCALL), \
+    DEFINE_KEYCODE(0), \
+    DEFINE_KEYCODE(1), \
+    DEFINE_KEYCODE(2), \
+    DEFINE_KEYCODE(3), \
+    DEFINE_KEYCODE(4), \
+    DEFINE_KEYCODE(5), \
+    DEFINE_KEYCODE(6), \
+    DEFINE_KEYCODE(7), \
+    DEFINE_KEYCODE(8), \
+    DEFINE_KEYCODE(9), \
+    DEFINE_KEYCODE(STAR), \
+    DEFINE_KEYCODE(POUND), \
+    DEFINE_KEYCODE(DPAD_UP), \
+    DEFINE_KEYCODE(DPAD_DOWN), \
+    DEFINE_KEYCODE(DPAD_LEFT), \
+    DEFINE_KEYCODE(DPAD_RIGHT), \
+    DEFINE_KEYCODE(DPAD_CENTER), \
+    DEFINE_KEYCODE(VOLUME_UP), \
+    DEFINE_KEYCODE(VOLUME_DOWN), \
+    DEFINE_KEYCODE(POWER), \
+    DEFINE_KEYCODE(CAMERA), \
+    DEFINE_KEYCODE(CLEAR), \
+    DEFINE_KEYCODE(A), \
+    DEFINE_KEYCODE(B), \
+    DEFINE_KEYCODE(C), \
+    DEFINE_KEYCODE(D), \
+    DEFINE_KEYCODE(E), \
+    DEFINE_KEYCODE(F), \
+    DEFINE_KEYCODE(G), \
+    DEFINE_KEYCODE(H), \
+    DEFINE_KEYCODE(I), \
+    DEFINE_KEYCODE(J), \
+    DEFINE_KEYCODE(K), \
+    DEFINE_KEYCODE(L), \
+    DEFINE_KEYCODE(M), \
+    DEFINE_KEYCODE(N), \
+    DEFINE_KEYCODE(O), \
+    DEFINE_KEYCODE(P), \
+    DEFINE_KEYCODE(Q), \
+    DEFINE_KEYCODE(R), \
+    DEFINE_KEYCODE(S), \
+    DEFINE_KEYCODE(T), \
+    DEFINE_KEYCODE(U), \
+    DEFINE_KEYCODE(V), \
+    DEFINE_KEYCODE(W), \
+    DEFINE_KEYCODE(X), \
+    DEFINE_KEYCODE(Y), \
+    DEFINE_KEYCODE(Z), \
+    DEFINE_KEYCODE(COMMA), \
+    DEFINE_KEYCODE(PERIOD), \
+    DEFINE_KEYCODE(ALT_LEFT), \
+    DEFINE_KEYCODE(ALT_RIGHT), \
+    DEFINE_KEYCODE(SHIFT_LEFT), \
+    DEFINE_KEYCODE(SHIFT_RIGHT), \
+    DEFINE_KEYCODE(TAB), \
+    DEFINE_KEYCODE(SPACE), \
+    DEFINE_KEYCODE(SYM), \
+    DEFINE_KEYCODE(EXPLORER), \
+    DEFINE_KEYCODE(ENVELOPE), \
+    DEFINE_KEYCODE(ENTER), \
+    DEFINE_KEYCODE(DEL), \
+    DEFINE_KEYCODE(GRAVE), \
+    DEFINE_KEYCODE(MINUS), \
+    DEFINE_KEYCODE(EQUALS), \
+    DEFINE_KEYCODE(LEFT_BRACKET), \
+    DEFINE_KEYCODE(RIGHT_BRACKET), \
+    DEFINE_KEYCODE(BACKSLASH), \
+    DEFINE_KEYCODE(SEMICOLON), \
+    DEFINE_KEYCODE(APOSTROPHE), \
+    DEFINE_KEYCODE(SLASH), \
+    DEFINE_KEYCODE(AT), \
+    DEFINE_KEYCODE(NUM), \
+    DEFINE_KEYCODE(HEADSETHOOK), \
+    DEFINE_KEYCODE(FOCUS), \
+    DEFINE_KEYCODE(PLUS), \
+    DEFINE_KEYCODE(MENU), \
+    DEFINE_KEYCODE(NOTIFICATION), \
+    DEFINE_KEYCODE(SEARCH), \
+    DEFINE_KEYCODE(MEDIA_PLAY_PAUSE), \
+    DEFINE_KEYCODE(MEDIA_STOP), \
+    DEFINE_KEYCODE(MEDIA_NEXT), \
+    DEFINE_KEYCODE(MEDIA_PREVIOUS), \
+    DEFINE_KEYCODE(MEDIA_REWIND), \
+    DEFINE_KEYCODE(MEDIA_FAST_FORWARD), \
+    DEFINE_KEYCODE(MUTE), \
+    DEFINE_KEYCODE(PAGE_UP), \
+    DEFINE_KEYCODE(PAGE_DOWN), \
+    DEFINE_KEYCODE(PICTSYMBOLS), \
+    DEFINE_KEYCODE(SWITCH_CHARSET), \
+    DEFINE_KEYCODE(BUTTON_A), \
+    DEFINE_KEYCODE(BUTTON_B), \
+    DEFINE_KEYCODE(BUTTON_C), \
+    DEFINE_KEYCODE(BUTTON_X), \
+    DEFINE_KEYCODE(BUTTON_Y), \
+    DEFINE_KEYCODE(BUTTON_Z), \
+    DEFINE_KEYCODE(BUTTON_L1), \
+    DEFINE_KEYCODE(BUTTON_R1), \
+    DEFINE_KEYCODE(BUTTON_L2), \
+    DEFINE_KEYCODE(BUTTON_R2), \
+    DEFINE_KEYCODE(BUTTON_THUMBL), \
+    DEFINE_KEYCODE(BUTTON_THUMBR), \
+    DEFINE_KEYCODE(BUTTON_START), \
+    DEFINE_KEYCODE(BUTTON_SELECT), \
+    DEFINE_KEYCODE(BUTTON_MODE), \
+    DEFINE_KEYCODE(ESCAPE), \
+    DEFINE_KEYCODE(FORWARD_DEL), \
+    DEFINE_KEYCODE(CTRL_LEFT), \
+    DEFINE_KEYCODE(CTRL_RIGHT), \
+    DEFINE_KEYCODE(CAPS_LOCK), \
+    DEFINE_KEYCODE(SCROLL_LOCK), \
+    DEFINE_KEYCODE(META_LEFT), \
+    DEFINE_KEYCODE(META_RIGHT), \
+    DEFINE_KEYCODE(FUNCTION), \
+    DEFINE_KEYCODE(SYSRQ), \
+    DEFINE_KEYCODE(BREAK), \
+    DEFINE_KEYCODE(MOVE_HOME), \
+    DEFINE_KEYCODE(MOVE_END), \
+    DEFINE_KEYCODE(INSERT), \
+    DEFINE_KEYCODE(FORWARD), \
+    DEFINE_KEYCODE(MEDIA_PLAY), \
+    DEFINE_KEYCODE(MEDIA_PAUSE), \
+    DEFINE_KEYCODE(MEDIA_CLOSE), \
+    DEFINE_KEYCODE(MEDIA_EJECT), \
+    DEFINE_KEYCODE(MEDIA_RECORD), \
+    DEFINE_KEYCODE(F1), \
+    DEFINE_KEYCODE(F2), \
+    DEFINE_KEYCODE(F3), \
+    DEFINE_KEYCODE(F4), \
+    DEFINE_KEYCODE(F5), \
+    DEFINE_KEYCODE(F6), \
+    DEFINE_KEYCODE(F7), \
+    DEFINE_KEYCODE(F8), \
+    DEFINE_KEYCODE(F9), \
+    DEFINE_KEYCODE(F10), \
+    DEFINE_KEYCODE(F11), \
+    DEFINE_KEYCODE(F12), \
+    DEFINE_KEYCODE(NUM_LOCK), \
+    DEFINE_KEYCODE(NUMPAD_0), \
+    DEFINE_KEYCODE(NUMPAD_1), \
+    DEFINE_KEYCODE(NUMPAD_2), \
+    DEFINE_KEYCODE(NUMPAD_3), \
+    DEFINE_KEYCODE(NUMPAD_4), \
+    DEFINE_KEYCODE(NUMPAD_5), \
+    DEFINE_KEYCODE(NUMPAD_6), \
+    DEFINE_KEYCODE(NUMPAD_7), \
+    DEFINE_KEYCODE(NUMPAD_8), \
+    DEFINE_KEYCODE(NUMPAD_9), \
+    DEFINE_KEYCODE(NUMPAD_DIVIDE), \
+    DEFINE_KEYCODE(NUMPAD_MULTIPLY), \
+    DEFINE_KEYCODE(NUMPAD_SUBTRACT), \
+    DEFINE_KEYCODE(NUMPAD_ADD), \
+    DEFINE_KEYCODE(NUMPAD_DOT), \
+    DEFINE_KEYCODE(NUMPAD_COMMA), \
+    DEFINE_KEYCODE(NUMPAD_ENTER), \
+    DEFINE_KEYCODE(NUMPAD_EQUALS), \
+    DEFINE_KEYCODE(NUMPAD_LEFT_PAREN), \
+    DEFINE_KEYCODE(NUMPAD_RIGHT_PAREN), \
+    DEFINE_KEYCODE(VOLUME_MUTE), \
+    DEFINE_KEYCODE(INFO), \
+    DEFINE_KEYCODE(CHANNEL_UP), \
+    DEFINE_KEYCODE(CHANNEL_DOWN), \
+    DEFINE_KEYCODE(ZOOM_IN), \
+    DEFINE_KEYCODE(ZOOM_OUT), \
+    DEFINE_KEYCODE(TV), \
+    DEFINE_KEYCODE(WINDOW), \
+    DEFINE_KEYCODE(GUIDE), \
+    DEFINE_KEYCODE(DVR), \
+    DEFINE_KEYCODE(BOOKMARK), \
+    DEFINE_KEYCODE(CAPTIONS), \
+    DEFINE_KEYCODE(SETTINGS), \
+    DEFINE_KEYCODE(TV_POWER), \
+    DEFINE_KEYCODE(TV_INPUT), \
+    DEFINE_KEYCODE(STB_POWER), \
+    DEFINE_KEYCODE(STB_INPUT), \
+    DEFINE_KEYCODE(AVR_POWER), \
+    DEFINE_KEYCODE(AVR_INPUT), \
+    DEFINE_KEYCODE(PROG_RED), \
+    DEFINE_KEYCODE(PROG_GREEN), \
+    DEFINE_KEYCODE(PROG_YELLOW), \
+    DEFINE_KEYCODE(PROG_BLUE), \
+    DEFINE_KEYCODE(APP_SWITCH), \
+    DEFINE_KEYCODE(BUTTON_1), \
+    DEFINE_KEYCODE(BUTTON_2), \
+    DEFINE_KEYCODE(BUTTON_3), \
+    DEFINE_KEYCODE(BUTTON_4), \
+    DEFINE_KEYCODE(BUTTON_5), \
+    DEFINE_KEYCODE(BUTTON_6), \
+    DEFINE_KEYCODE(BUTTON_7), \
+    DEFINE_KEYCODE(BUTTON_8), \
+    DEFINE_KEYCODE(BUTTON_9), \
+    DEFINE_KEYCODE(BUTTON_10), \
+    DEFINE_KEYCODE(BUTTON_11), \
+    DEFINE_KEYCODE(BUTTON_12), \
+    DEFINE_KEYCODE(BUTTON_13), \
+    DEFINE_KEYCODE(BUTTON_14), \
+    DEFINE_KEYCODE(BUTTON_15), \
+    DEFINE_KEYCODE(BUTTON_16), \
+    DEFINE_KEYCODE(LANGUAGE_SWITCH), \
+    DEFINE_KEYCODE(MANNER_MODE), \
+    DEFINE_KEYCODE(3D_MODE), \
+    DEFINE_KEYCODE(CONTACTS), \
+    DEFINE_KEYCODE(CALENDAR), \
+    DEFINE_KEYCODE(MUSIC), \
+    DEFINE_KEYCODE(CALCULATOR), \
+    DEFINE_KEYCODE(ZENKAKU_HANKAKU), \
+    DEFINE_KEYCODE(EISU), \
+    DEFINE_KEYCODE(MUHENKAN), \
+    DEFINE_KEYCODE(HENKAN), \
+    DEFINE_KEYCODE(KATAKANA_HIRAGANA), \
+    DEFINE_KEYCODE(YEN), \
+    DEFINE_KEYCODE(RO), \
+    DEFINE_KEYCODE(KANA), \
+    DEFINE_KEYCODE(ASSIST), \
+    DEFINE_KEYCODE(BRIGHTNESS_DOWN), \
+    DEFINE_KEYCODE(BRIGHTNESS_UP), \
+    DEFINE_KEYCODE(MEDIA_AUDIO_TRACK), \
+    DEFINE_KEYCODE(SLEEP), \
+    DEFINE_KEYCODE(WAKEUP), \
+    DEFINE_KEYCODE(PAIRING), \
+    DEFINE_KEYCODE(MEDIA_TOP_MENU), \
+    DEFINE_KEYCODE(11), \
+    DEFINE_KEYCODE(12), \
+    DEFINE_KEYCODE(LAST_CHANNEL), \
+    DEFINE_KEYCODE(TV_DATA_SERVICE), \
+    DEFINE_KEYCODE(VOICE_ASSIST), \
+    DEFINE_KEYCODE(TV_RADIO_SERVICE), \
+    DEFINE_KEYCODE(TV_TELETEXT), \
+    DEFINE_KEYCODE(TV_NUMBER_ENTRY), \
+    DEFINE_KEYCODE(TV_TERRESTRIAL_ANALOG), \
+    DEFINE_KEYCODE(TV_TERRESTRIAL_DIGITAL), \
+    DEFINE_KEYCODE(TV_SATELLITE), \
+    DEFINE_KEYCODE(TV_SATELLITE_BS), \
+    DEFINE_KEYCODE(TV_SATELLITE_CS), \
+    DEFINE_KEYCODE(TV_SATELLITE_SERVICE), \
+    DEFINE_KEYCODE(TV_NETWORK), \
+    DEFINE_KEYCODE(TV_ANTENNA_CABLE), \
+    DEFINE_KEYCODE(TV_INPUT_HDMI_1), \
+    DEFINE_KEYCODE(TV_INPUT_HDMI_2), \
+    DEFINE_KEYCODE(TV_INPUT_HDMI_3), \
+    DEFINE_KEYCODE(TV_INPUT_HDMI_4), \
+    DEFINE_KEYCODE(TV_INPUT_COMPOSITE_1), \
+    DEFINE_KEYCODE(TV_INPUT_COMPOSITE_2), \
+    DEFINE_KEYCODE(TV_INPUT_COMPONENT_1), \
+    DEFINE_KEYCODE(TV_INPUT_COMPONENT_2), \
+    DEFINE_KEYCODE(TV_INPUT_VGA_1), \
+    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION), \
+    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_UP), \
+    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_DOWN), \
+    DEFINE_KEYCODE(TV_ZOOM_MODE), \
+    DEFINE_KEYCODE(TV_CONTENTS_MENU), \
+    DEFINE_KEYCODE(TV_MEDIA_CONTEXT_MENU), \
+    DEFINE_KEYCODE(TV_TIMER_PROGRAMMING), \
+    DEFINE_KEYCODE(HELP), \
+    DEFINE_KEYCODE(NAVIGATE_PREVIOUS), \
+    DEFINE_KEYCODE(NAVIGATE_NEXT), \
+    DEFINE_KEYCODE(NAVIGATE_IN), \
+    DEFINE_KEYCODE(NAVIGATE_OUT), \
+    DEFINE_KEYCODE(STEM_PRIMARY), \
+    DEFINE_KEYCODE(STEM_1), \
+    DEFINE_KEYCODE(STEM_2), \
+    DEFINE_KEYCODE(STEM_3), \
+    DEFINE_KEYCODE(DPAD_UP_LEFT), \
+    DEFINE_KEYCODE(DPAD_DOWN_LEFT), \
+    DEFINE_KEYCODE(DPAD_UP_RIGHT), \
+    DEFINE_KEYCODE(DPAD_DOWN_RIGHT), \
+    DEFINE_KEYCODE(MEDIA_SKIP_FORWARD), \
+    DEFINE_KEYCODE(MEDIA_SKIP_BACKWARD), \
+    DEFINE_KEYCODE(MEDIA_STEP_FORWARD), \
+    DEFINE_KEYCODE(MEDIA_STEP_BACKWARD), \
+    DEFINE_KEYCODE(SOFT_SLEEP), \
+    DEFINE_KEYCODE(CUT), \
+    DEFINE_KEYCODE(COPY), \
+    DEFINE_KEYCODE(PASTE), \
+    DEFINE_KEYCODE(SYSTEM_NAVIGATION_UP), \
+    DEFINE_KEYCODE(SYSTEM_NAVIGATION_DOWN), \
+    DEFINE_KEYCODE(SYSTEM_NAVIGATION_LEFT), \
+    DEFINE_KEYCODE(SYSTEM_NAVIGATION_RIGHT), \
+    DEFINE_KEYCODE(ALL_APPS), \
+    DEFINE_KEYCODE(REFRESH), \
+    DEFINE_KEYCODE(THUMBS_UP), \
+    DEFINE_KEYCODE(THUMBS_DOWN), \
+    DEFINE_KEYCODE(PROFILE_SWITCH)
 
-static const InputEventLabel KEYCODES[] = {
-    // NOTE: If you add a new keycode here you must also add it to several other files.
-    //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
-    DEFINE_KEYCODE(UNKNOWN),
-    DEFINE_KEYCODE(SOFT_LEFT),
-    DEFINE_KEYCODE(SOFT_RIGHT),
-    DEFINE_KEYCODE(HOME),
-    DEFINE_KEYCODE(BACK),
-    DEFINE_KEYCODE(CALL),
-    DEFINE_KEYCODE(ENDCALL),
-    DEFINE_KEYCODE(0),
-    DEFINE_KEYCODE(1),
-    DEFINE_KEYCODE(2),
-    DEFINE_KEYCODE(3),
-    DEFINE_KEYCODE(4),
-    DEFINE_KEYCODE(5),
-    DEFINE_KEYCODE(6),
-    DEFINE_KEYCODE(7),
-    DEFINE_KEYCODE(8),
-    DEFINE_KEYCODE(9),
-    DEFINE_KEYCODE(STAR),
-    DEFINE_KEYCODE(POUND),
-    DEFINE_KEYCODE(DPAD_UP),
-    DEFINE_KEYCODE(DPAD_DOWN),
-    DEFINE_KEYCODE(DPAD_LEFT),
-    DEFINE_KEYCODE(DPAD_RIGHT),
-    DEFINE_KEYCODE(DPAD_CENTER),
-    DEFINE_KEYCODE(VOLUME_UP),
-    DEFINE_KEYCODE(VOLUME_DOWN),
-    DEFINE_KEYCODE(POWER),
-    DEFINE_KEYCODE(CAMERA),
-    DEFINE_KEYCODE(CLEAR),
-    DEFINE_KEYCODE(A),
-    DEFINE_KEYCODE(B),
-    DEFINE_KEYCODE(C),
-    DEFINE_KEYCODE(D),
-    DEFINE_KEYCODE(E),
-    DEFINE_KEYCODE(F),
-    DEFINE_KEYCODE(G),
-    DEFINE_KEYCODE(H),
-    DEFINE_KEYCODE(I),
-    DEFINE_KEYCODE(J),
-    DEFINE_KEYCODE(K),
-    DEFINE_KEYCODE(L),
-    DEFINE_KEYCODE(M),
-    DEFINE_KEYCODE(N),
-    DEFINE_KEYCODE(O),
-    DEFINE_KEYCODE(P),
-    DEFINE_KEYCODE(Q),
-    DEFINE_KEYCODE(R),
-    DEFINE_KEYCODE(S),
-    DEFINE_KEYCODE(T),
-    DEFINE_KEYCODE(U),
-    DEFINE_KEYCODE(V),
-    DEFINE_KEYCODE(W),
-    DEFINE_KEYCODE(X),
-    DEFINE_KEYCODE(Y),
-    DEFINE_KEYCODE(Z),
-    DEFINE_KEYCODE(COMMA),
-    DEFINE_KEYCODE(PERIOD),
-    DEFINE_KEYCODE(ALT_LEFT),
-    DEFINE_KEYCODE(ALT_RIGHT),
-    DEFINE_KEYCODE(SHIFT_LEFT),
-    DEFINE_KEYCODE(SHIFT_RIGHT),
-    DEFINE_KEYCODE(TAB),
-    DEFINE_KEYCODE(SPACE),
-    DEFINE_KEYCODE(SYM),
-    DEFINE_KEYCODE(EXPLORER),
-    DEFINE_KEYCODE(ENVELOPE),
-    DEFINE_KEYCODE(ENTER),
-    DEFINE_KEYCODE(DEL),
-    DEFINE_KEYCODE(GRAVE),
-    DEFINE_KEYCODE(MINUS),
-    DEFINE_KEYCODE(EQUALS),
-    DEFINE_KEYCODE(LEFT_BRACKET),
-    DEFINE_KEYCODE(RIGHT_BRACKET),
-    DEFINE_KEYCODE(BACKSLASH),
-    DEFINE_KEYCODE(SEMICOLON),
-    DEFINE_KEYCODE(APOSTROPHE),
-    DEFINE_KEYCODE(SLASH),
-    DEFINE_KEYCODE(AT),
-    DEFINE_KEYCODE(NUM),
-    DEFINE_KEYCODE(HEADSETHOOK),
-    DEFINE_KEYCODE(FOCUS),   // *Camera* focus
-    DEFINE_KEYCODE(PLUS),
-    DEFINE_KEYCODE(MENU),
-    DEFINE_KEYCODE(NOTIFICATION),
-    DEFINE_KEYCODE(SEARCH),
-    DEFINE_KEYCODE(MEDIA_PLAY_PAUSE),
-    DEFINE_KEYCODE(MEDIA_STOP),
-    DEFINE_KEYCODE(MEDIA_NEXT),
-    DEFINE_KEYCODE(MEDIA_PREVIOUS),
-    DEFINE_KEYCODE(MEDIA_REWIND),
-    DEFINE_KEYCODE(MEDIA_FAST_FORWARD),
-    DEFINE_KEYCODE(MUTE),
-    DEFINE_KEYCODE(PAGE_UP),
-    DEFINE_KEYCODE(PAGE_DOWN),
-    DEFINE_KEYCODE(PICTSYMBOLS),
-    DEFINE_KEYCODE(SWITCH_CHARSET),
-    DEFINE_KEYCODE(BUTTON_A),
-    DEFINE_KEYCODE(BUTTON_B),
-    DEFINE_KEYCODE(BUTTON_C),
-    DEFINE_KEYCODE(BUTTON_X),
-    DEFINE_KEYCODE(BUTTON_Y),
-    DEFINE_KEYCODE(BUTTON_Z),
-    DEFINE_KEYCODE(BUTTON_L1),
-    DEFINE_KEYCODE(BUTTON_R1),
-    DEFINE_KEYCODE(BUTTON_L2),
-    DEFINE_KEYCODE(BUTTON_R2),
-    DEFINE_KEYCODE(BUTTON_THUMBL),
-    DEFINE_KEYCODE(BUTTON_THUMBR),
-    DEFINE_KEYCODE(BUTTON_START),
-    DEFINE_KEYCODE(BUTTON_SELECT),
-    DEFINE_KEYCODE(BUTTON_MODE),
-    DEFINE_KEYCODE(ESCAPE),
-    DEFINE_KEYCODE(FORWARD_DEL),
-    DEFINE_KEYCODE(CTRL_LEFT),
-    DEFINE_KEYCODE(CTRL_RIGHT),
-    DEFINE_KEYCODE(CAPS_LOCK),
-    DEFINE_KEYCODE(SCROLL_LOCK),
-    DEFINE_KEYCODE(META_LEFT),
-    DEFINE_KEYCODE(META_RIGHT),
-    DEFINE_KEYCODE(FUNCTION),
-    DEFINE_KEYCODE(SYSRQ),
-    DEFINE_KEYCODE(BREAK),
-    DEFINE_KEYCODE(MOVE_HOME),
-    DEFINE_KEYCODE(MOVE_END),
-    DEFINE_KEYCODE(INSERT),
-    DEFINE_KEYCODE(FORWARD),
-    DEFINE_KEYCODE(MEDIA_PLAY),
-    DEFINE_KEYCODE(MEDIA_PAUSE),
-    DEFINE_KEYCODE(MEDIA_CLOSE),
-    DEFINE_KEYCODE(MEDIA_EJECT),
-    DEFINE_KEYCODE(MEDIA_RECORD),
-    DEFINE_KEYCODE(F1),
-    DEFINE_KEYCODE(F2),
-    DEFINE_KEYCODE(F3),
-    DEFINE_KEYCODE(F4),
-    DEFINE_KEYCODE(F5),
-    DEFINE_KEYCODE(F6),
-    DEFINE_KEYCODE(F7),
-    DEFINE_KEYCODE(F8),
-    DEFINE_KEYCODE(F9),
-    DEFINE_KEYCODE(F10),
-    DEFINE_KEYCODE(F11),
-    DEFINE_KEYCODE(F12),
-    DEFINE_KEYCODE(NUM_LOCK),
-    DEFINE_KEYCODE(NUMPAD_0),
-    DEFINE_KEYCODE(NUMPAD_1),
-    DEFINE_KEYCODE(NUMPAD_2),
-    DEFINE_KEYCODE(NUMPAD_3),
-    DEFINE_KEYCODE(NUMPAD_4),
-    DEFINE_KEYCODE(NUMPAD_5),
-    DEFINE_KEYCODE(NUMPAD_6),
-    DEFINE_KEYCODE(NUMPAD_7),
-    DEFINE_KEYCODE(NUMPAD_8),
-    DEFINE_KEYCODE(NUMPAD_9),
-    DEFINE_KEYCODE(NUMPAD_DIVIDE),
-    DEFINE_KEYCODE(NUMPAD_MULTIPLY),
-    DEFINE_KEYCODE(NUMPAD_SUBTRACT),
-    DEFINE_KEYCODE(NUMPAD_ADD),
-    DEFINE_KEYCODE(NUMPAD_DOT),
-    DEFINE_KEYCODE(NUMPAD_COMMA),
-    DEFINE_KEYCODE(NUMPAD_ENTER),
-    DEFINE_KEYCODE(NUMPAD_EQUALS),
-    DEFINE_KEYCODE(NUMPAD_LEFT_PAREN),
-    DEFINE_KEYCODE(NUMPAD_RIGHT_PAREN),
-    DEFINE_KEYCODE(VOLUME_MUTE),
-    DEFINE_KEYCODE(INFO),
-    DEFINE_KEYCODE(CHANNEL_UP),
-    DEFINE_KEYCODE(CHANNEL_DOWN),
-    DEFINE_KEYCODE(ZOOM_IN),
-    DEFINE_KEYCODE(ZOOM_OUT),
-    DEFINE_KEYCODE(TV),
-    DEFINE_KEYCODE(WINDOW),
-    DEFINE_KEYCODE(GUIDE),
-    DEFINE_KEYCODE(DVR),
-    DEFINE_KEYCODE(BOOKMARK),
-    DEFINE_KEYCODE(CAPTIONS),
-    DEFINE_KEYCODE(SETTINGS),
-    DEFINE_KEYCODE(TV_POWER),
-    DEFINE_KEYCODE(TV_INPUT),
-    DEFINE_KEYCODE(STB_POWER),
-    DEFINE_KEYCODE(STB_INPUT),
-    DEFINE_KEYCODE(AVR_POWER),
-    DEFINE_KEYCODE(AVR_INPUT),
-    DEFINE_KEYCODE(PROG_RED),
-    DEFINE_KEYCODE(PROG_GREEN),
-    DEFINE_KEYCODE(PROG_YELLOW),
-    DEFINE_KEYCODE(PROG_BLUE),
-    DEFINE_KEYCODE(APP_SWITCH),
-    DEFINE_KEYCODE(BUTTON_1),
-    DEFINE_KEYCODE(BUTTON_2),
-    DEFINE_KEYCODE(BUTTON_3),
-    DEFINE_KEYCODE(BUTTON_4),
-    DEFINE_KEYCODE(BUTTON_5),
-    DEFINE_KEYCODE(BUTTON_6),
-    DEFINE_KEYCODE(BUTTON_7),
-    DEFINE_KEYCODE(BUTTON_8),
-    DEFINE_KEYCODE(BUTTON_9),
-    DEFINE_KEYCODE(BUTTON_10),
-    DEFINE_KEYCODE(BUTTON_11),
-    DEFINE_KEYCODE(BUTTON_12),
-    DEFINE_KEYCODE(BUTTON_13),
-    DEFINE_KEYCODE(BUTTON_14),
-    DEFINE_KEYCODE(BUTTON_15),
-    DEFINE_KEYCODE(BUTTON_16),
-    DEFINE_KEYCODE(LANGUAGE_SWITCH),
-    DEFINE_KEYCODE(MANNER_MODE),
-    DEFINE_KEYCODE(3D_MODE),
-    DEFINE_KEYCODE(CONTACTS),
-    DEFINE_KEYCODE(CALENDAR),
-    DEFINE_KEYCODE(MUSIC),
-    DEFINE_KEYCODE(CALCULATOR),
-    DEFINE_KEYCODE(ZENKAKU_HANKAKU),
-    DEFINE_KEYCODE(EISU),
-    DEFINE_KEYCODE(MUHENKAN),
-    DEFINE_KEYCODE(HENKAN),
-    DEFINE_KEYCODE(KATAKANA_HIRAGANA),
-    DEFINE_KEYCODE(YEN),
-    DEFINE_KEYCODE(RO),
-    DEFINE_KEYCODE(KANA),
-    DEFINE_KEYCODE(ASSIST),
-    DEFINE_KEYCODE(BRIGHTNESS_DOWN),
-    DEFINE_KEYCODE(BRIGHTNESS_UP),
-    DEFINE_KEYCODE(MEDIA_AUDIO_TRACK),
-    DEFINE_KEYCODE(SLEEP),
-    DEFINE_KEYCODE(WAKEUP),
-    DEFINE_KEYCODE(PAIRING),
-    DEFINE_KEYCODE(MEDIA_TOP_MENU),
-    DEFINE_KEYCODE(11),
-    DEFINE_KEYCODE(12),
-    DEFINE_KEYCODE(LAST_CHANNEL),
-    DEFINE_KEYCODE(TV_DATA_SERVICE),
-    DEFINE_KEYCODE(VOICE_ASSIST),
-    DEFINE_KEYCODE(TV_RADIO_SERVICE),
-    DEFINE_KEYCODE(TV_TELETEXT),
-    DEFINE_KEYCODE(TV_NUMBER_ENTRY),
-    DEFINE_KEYCODE(TV_TERRESTRIAL_ANALOG),
-    DEFINE_KEYCODE(TV_TERRESTRIAL_DIGITAL),
-    DEFINE_KEYCODE(TV_SATELLITE),
-    DEFINE_KEYCODE(TV_SATELLITE_BS),
-    DEFINE_KEYCODE(TV_SATELLITE_CS),
-    DEFINE_KEYCODE(TV_SATELLITE_SERVICE),
-    DEFINE_KEYCODE(TV_NETWORK),
-    DEFINE_KEYCODE(TV_ANTENNA_CABLE),
-    DEFINE_KEYCODE(TV_INPUT_HDMI_1),
-    DEFINE_KEYCODE(TV_INPUT_HDMI_2),
-    DEFINE_KEYCODE(TV_INPUT_HDMI_3),
-    DEFINE_KEYCODE(TV_INPUT_HDMI_4),
-    DEFINE_KEYCODE(TV_INPUT_COMPOSITE_1),
-    DEFINE_KEYCODE(TV_INPUT_COMPOSITE_2),
-    DEFINE_KEYCODE(TV_INPUT_COMPONENT_1),
-    DEFINE_KEYCODE(TV_INPUT_COMPONENT_2),
-    DEFINE_KEYCODE(TV_INPUT_VGA_1),
-    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION),
-    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_UP),
-    DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_DOWN),
-    DEFINE_KEYCODE(TV_ZOOM_MODE),
-    DEFINE_KEYCODE(TV_CONTENTS_MENU),
-    DEFINE_KEYCODE(TV_MEDIA_CONTEXT_MENU),
-    DEFINE_KEYCODE(TV_TIMER_PROGRAMMING),
-    DEFINE_KEYCODE(HELP),
-    DEFINE_KEYCODE(NAVIGATE_PREVIOUS),
-    DEFINE_KEYCODE(NAVIGATE_NEXT),
-    DEFINE_KEYCODE(NAVIGATE_IN),
-    DEFINE_KEYCODE(NAVIGATE_OUT),
-    DEFINE_KEYCODE(STEM_PRIMARY),
-    DEFINE_KEYCODE(STEM_1),
-    DEFINE_KEYCODE(STEM_2),
-    DEFINE_KEYCODE(STEM_3),
-    DEFINE_KEYCODE(DPAD_UP_LEFT),
-    DEFINE_KEYCODE(DPAD_DOWN_LEFT),
-    DEFINE_KEYCODE(DPAD_UP_RIGHT),
-    DEFINE_KEYCODE(DPAD_DOWN_RIGHT),
-    DEFINE_KEYCODE(MEDIA_SKIP_FORWARD),
-    DEFINE_KEYCODE(MEDIA_SKIP_BACKWARD),
-    DEFINE_KEYCODE(MEDIA_STEP_FORWARD),
-    DEFINE_KEYCODE(MEDIA_STEP_BACKWARD),
-    DEFINE_KEYCODE(SOFT_SLEEP),
-    DEFINE_KEYCODE(CUT),
-    DEFINE_KEYCODE(COPY),
-    DEFINE_KEYCODE(PASTE),
-    DEFINE_KEYCODE(SYSTEM_NAVIGATION_UP),
-    DEFINE_KEYCODE(SYSTEM_NAVIGATION_DOWN),
-    DEFINE_KEYCODE(SYSTEM_NAVIGATION_LEFT),
-    DEFINE_KEYCODE(SYSTEM_NAVIGATION_RIGHT),
-    DEFINE_KEYCODE(ALL_APPS),
-    DEFINE_KEYCODE(REFRESH),
-    DEFINE_KEYCODE(THUMBS_UP),
-    DEFINE_KEYCODE(THUMBS_DOWN),
-    DEFINE_KEYCODE(PROFILE_SWITCH),
-
-    { nullptr, 0 }
+static const std::unordered_map<std::string, int> KEYCODES = {
+    KEYCODES_SEQUENCE
 };
 
-static const InputEventLabel AXES[] = {
-    DEFINE_AXIS(X),
-    DEFINE_AXIS(Y),
-    DEFINE_AXIS(PRESSURE),
-    DEFINE_AXIS(SIZE),
-    DEFINE_AXIS(TOUCH_MAJOR),
-    DEFINE_AXIS(TOUCH_MINOR),
-    DEFINE_AXIS(TOOL_MAJOR),
-    DEFINE_AXIS(TOOL_MINOR),
-    DEFINE_AXIS(ORIENTATION),
-    DEFINE_AXIS(VSCROLL),
-    DEFINE_AXIS(HSCROLL),
-    DEFINE_AXIS(Z),
-    DEFINE_AXIS(RX),
-    DEFINE_AXIS(RY),
-    DEFINE_AXIS(RZ),
-    DEFINE_AXIS(HAT_X),
-    DEFINE_AXIS(HAT_Y),
-    DEFINE_AXIS(LTRIGGER),
-    DEFINE_AXIS(RTRIGGER),
-    DEFINE_AXIS(THROTTLE),
-    DEFINE_AXIS(RUDDER),
-    DEFINE_AXIS(WHEEL),
-    DEFINE_AXIS(GAS),
-    DEFINE_AXIS(BRAKE),
-    DEFINE_AXIS(DISTANCE),
-    DEFINE_AXIS(TILT),
-    DEFINE_AXIS(SCROLL),
-    DEFINE_AXIS(RELATIVE_X),
-    DEFINE_AXIS(RELATIVE_Y),
-    DEFINE_AXIS(GENERIC_1),
-    DEFINE_AXIS(GENERIC_2),
-    DEFINE_AXIS(GENERIC_3),
-    DEFINE_AXIS(GENERIC_4),
-    DEFINE_AXIS(GENERIC_5),
-    DEFINE_AXIS(GENERIC_6),
-    DEFINE_AXIS(GENERIC_7),
-    DEFINE_AXIS(GENERIC_8),
-    DEFINE_AXIS(GENERIC_9),
-    DEFINE_AXIS(GENERIC_10),
-    DEFINE_AXIS(GENERIC_11),
-    DEFINE_AXIS(GENERIC_12),
-    DEFINE_AXIS(GENERIC_13),
-    DEFINE_AXIS(GENERIC_14),
-    DEFINE_AXIS(GENERIC_15),
-    DEFINE_AXIS(GENERIC_16),
-
-    // NOTE: If you add a new axis here you must also add it to several other files.
-    //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
-    { nullptr, 0 }
+static const std::vector<InputEventLabel> KEY_NAMES = {
+    KEYCODES_SEQUENCE
 };
 
-static const InputEventLabel LEDS[] = {
-    DEFINE_LED(NUM_LOCK),
-    DEFINE_LED(CAPS_LOCK),
-    DEFINE_LED(SCROLL_LOCK),
-    DEFINE_LED(COMPOSE),
-    DEFINE_LED(KANA),
-    DEFINE_LED(SLEEP),
-    DEFINE_LED(SUSPEND),
-    DEFINE_LED(MUTE),
-    DEFINE_LED(MISC),
-    DEFINE_LED(MAIL),
-    DEFINE_LED(CHARGING),
-    DEFINE_LED(CONTROLLER_1),
-    DEFINE_LED(CONTROLLER_2),
-    DEFINE_LED(CONTROLLER_3),
-    DEFINE_LED(CONTROLLER_4),
+// NOTE: If you add a new axis here you must also add it to several other files.
+//       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
+#define AXES_SEQUENCE \
+    DEFINE_AXIS(X), \
+    DEFINE_AXIS(Y), \
+    DEFINE_AXIS(PRESSURE), \
+    DEFINE_AXIS(SIZE), \
+    DEFINE_AXIS(TOUCH_MAJOR), \
+    DEFINE_AXIS(TOUCH_MINOR), \
+    DEFINE_AXIS(TOOL_MAJOR), \
+    DEFINE_AXIS(TOOL_MINOR), \
+    DEFINE_AXIS(ORIENTATION), \
+    DEFINE_AXIS(VSCROLL), \
+    DEFINE_AXIS(HSCROLL), \
+    DEFINE_AXIS(Z), \
+    DEFINE_AXIS(RX), \
+    DEFINE_AXIS(RY), \
+    DEFINE_AXIS(RZ), \
+    DEFINE_AXIS(HAT_X), \
+    DEFINE_AXIS(HAT_Y), \
+    DEFINE_AXIS(LTRIGGER), \
+    DEFINE_AXIS(RTRIGGER), \
+    DEFINE_AXIS(THROTTLE), \
+    DEFINE_AXIS(RUDDER), \
+    DEFINE_AXIS(WHEEL), \
+    DEFINE_AXIS(GAS), \
+    DEFINE_AXIS(BRAKE), \
+    DEFINE_AXIS(DISTANCE), \
+    DEFINE_AXIS(TILT), \
+    DEFINE_AXIS(SCROLL), \
+    DEFINE_AXIS(RELATIVE_X), \
+    DEFINE_AXIS(RELATIVE_Y), \
+    DEFINE_AXIS(GENERIC_1), \
+    DEFINE_AXIS(GENERIC_2), \
+    DEFINE_AXIS(GENERIC_3), \
+    DEFINE_AXIS(GENERIC_4), \
+    DEFINE_AXIS(GENERIC_5), \
+    DEFINE_AXIS(GENERIC_6), \
+    DEFINE_AXIS(GENERIC_7), \
+    DEFINE_AXIS(GENERIC_8), \
+    DEFINE_AXIS(GENERIC_9), \
+    DEFINE_AXIS(GENERIC_10), \
+    DEFINE_AXIS(GENERIC_11), \
+    DEFINE_AXIS(GENERIC_12), \
+    DEFINE_AXIS(GENERIC_13), \
+    DEFINE_AXIS(GENERIC_14), \
+    DEFINE_AXIS(GENERIC_15), \
+    DEFINE_AXIS(GENERIC_16)
 
-    // NOTE: If you add new LEDs here, you must also add them to Input.h
-    { nullptr, 0 }
+static const std::unordered_map<std::string, int> AXES = {
+    AXES_SEQUENCE
 };
 
-static const InputEventLabel FLAGS[] = {DEFINE_FLAG(VIRTUAL),
-                                        DEFINE_FLAG(FUNCTION),
-                                        DEFINE_FLAG(GESTURE),
-                                        DEFINE_FLAG(WAKE),
+static const std::vector<InputEventLabel> AXES_NAMES = {
+    AXES_SEQUENCE
+};
 
-                                        {nullptr, 0}};
+// NOTE: If you add new LEDs here, you must also add them to Input.h
+#define LEDS_SEQUENCE \
+    DEFINE_LED(NUM_LOCK), \
+    DEFINE_LED(CAPS_LOCK), \
+    DEFINE_LED(SCROLL_LOCK), \
+    DEFINE_LED(COMPOSE), \
+    DEFINE_LED(KANA), \
+    DEFINE_LED(SLEEP), \
+    DEFINE_LED(SUSPEND), \
+    DEFINE_LED(MUTE), \
+    DEFINE_LED(MISC), \
+    DEFINE_LED(MAIL), \
+    DEFINE_LED(CHARGING), \
+    DEFINE_LED(CONTROLLER_1), \
+    DEFINE_LED(CONTROLLER_2), \
+    DEFINE_LED(CONTROLLER_3), \
+    DEFINE_LED(CONTROLLER_4)
 
-static int lookupValueByLabel(const char* literal, const InputEventLabel *list) {
-    while (list->literal) {
-        if (strcmp(literal, list->literal) == 0) {
-            return list->value;
-        }
-        list++;
-    }
-    return list->value;
+static const std::unordered_map<std::string, int> LEDS = {
+    LEDS_SEQUENCE
+};
+
+#define FLAGS_SEQUENCE \
+    DEFINE_FLAG(VIRTUAL), \
+    DEFINE_FLAG(FUNCTION), \
+    DEFINE_FLAG(GESTURE), \
+    DEFINE_FLAG(WAKE)
+
+static const std::unordered_map<std::string, int> FLAGS = {
+    FLAGS_SEQUENCE
+};
+
+static int lookupValueByLabel(const std::unordered_map<std::string, int> &map,
+        const char* literal) {
+    std::string str(literal);
+    auto it = map.find(str);
+    return it != map.end() ? it->second : 0;
 }
 
-static const char* lookupLabelByValue(int value, const InputEventLabel* list) {
-    while (list->literal) {
-        if (list->value == value) {
-            return list->literal;
-        }
-        list++;
+static const char* lookupLabelByValue(const std::vector<InputEventLabel> &vec, int value) {
+    if (static_cast<size_t>(value) < vec.size()) {
+        return vec[value].literal;
     }
     return nullptr;
 }
 
 static inline int32_t getKeyCodeByLabel(const char* label) {
-    return int32_t(lookupValueByLabel(label, KEYCODES));
+    return int32_t(lookupValueByLabel(KEYCODES, label));
 }
 
 static inline const char* getLabelByKeyCode(int32_t keyCode) {
-    if (keyCode >= 0 && keyCode < static_cast<int32_t>(size(KEYCODES))) {
-        return KEYCODES[keyCode].literal;
+    if (keyCode >= 0 && static_cast<size_t>(keyCode) < KEYCODES.size()) {
+        return lookupLabelByValue(KEY_NAMES, keyCode);
     }
     return nullptr;
 }
 
 static inline uint32_t getKeyFlagByLabel(const char* label) {
-    return uint32_t(lookupValueByLabel(label, FLAGS));
+    return uint32_t(lookupValueByLabel(FLAGS, label));
 }
 
 static inline int32_t getAxisByLabel(const char* label) {
-    return int32_t(lookupValueByLabel(label, AXES));
+    return int32_t(lookupValueByLabel(AXES, label));
 }
 
 static inline const char* getAxisLabel(int32_t axisId) {
-    return lookupLabelByValue(axisId, AXES);
+    return lookupLabelByValue(AXES_NAMES, axisId);
 }
 
 static inline int32_t getLedByLabel(const char* label) {
-    return int32_t(lookupValueByLabel(label, LEDS));
+    return int32_t(lookupValueByLabel(LEDS, label));
 }