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1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include <input/InputEventLabels.h>
18 
19 #include <linux/input-event-codes.h>
20 #include <linux/input.h>
21 
22 #define DEFINE_KEYCODE(key) { #key, AKEYCODE_##key }
23 #define DEFINE_AXIS(axis) { #axis, AMOTION_EVENT_AXIS_##axis }
24 #define DEFINE_LED(led) { #led, ALED_##led }
25 #define DEFINE_FLAG(flag) { #flag, POLICY_FLAG_##flag }
26 
27 namespace android {
28 
29 // clang-format off
30 
31 // NOTE: If you add a new keycode here you must also add it to several other files.
32 //       Refer to frameworks/base/core/java/android/view/KeyEvent.java for the full list.
33 #define KEYCODES_SEQUENCE \
34     DEFINE_KEYCODE(UNKNOWN), \
35     DEFINE_KEYCODE(SOFT_LEFT), \
36     DEFINE_KEYCODE(SOFT_RIGHT), \
37     DEFINE_KEYCODE(HOME), \
38     DEFINE_KEYCODE(BACK), \
39     DEFINE_KEYCODE(CALL), \
40     DEFINE_KEYCODE(ENDCALL), \
41     DEFINE_KEYCODE(0), \
42     DEFINE_KEYCODE(1), \
43     DEFINE_KEYCODE(2), \
44     DEFINE_KEYCODE(3), \
45     DEFINE_KEYCODE(4), \
46     DEFINE_KEYCODE(5), \
47     DEFINE_KEYCODE(6), \
48     DEFINE_KEYCODE(7), \
49     DEFINE_KEYCODE(8), \
50     DEFINE_KEYCODE(9), \
51     DEFINE_KEYCODE(STAR), \
52     DEFINE_KEYCODE(POUND), \
53     DEFINE_KEYCODE(DPAD_UP), \
54     DEFINE_KEYCODE(DPAD_DOWN), \
55     DEFINE_KEYCODE(DPAD_LEFT), \
56     DEFINE_KEYCODE(DPAD_RIGHT), \
57     DEFINE_KEYCODE(DPAD_CENTER), \
58     DEFINE_KEYCODE(VOLUME_UP), \
59     DEFINE_KEYCODE(VOLUME_DOWN), \
60     DEFINE_KEYCODE(POWER), \
61     DEFINE_KEYCODE(CAMERA), \
62     DEFINE_KEYCODE(CLEAR), \
63     DEFINE_KEYCODE(A), \
64     DEFINE_KEYCODE(B), \
65     DEFINE_KEYCODE(C), \
66     DEFINE_KEYCODE(D), \
67     DEFINE_KEYCODE(E), \
68     DEFINE_KEYCODE(F), \
69     DEFINE_KEYCODE(G), \
70     DEFINE_KEYCODE(H), \
71     DEFINE_KEYCODE(I), \
72     DEFINE_KEYCODE(J), \
73     DEFINE_KEYCODE(K), \
74     DEFINE_KEYCODE(L), \
75     DEFINE_KEYCODE(M), \
76     DEFINE_KEYCODE(N), \
77     DEFINE_KEYCODE(O), \
78     DEFINE_KEYCODE(P), \
79     DEFINE_KEYCODE(Q), \
80     DEFINE_KEYCODE(R), \
81     DEFINE_KEYCODE(S), \
82     DEFINE_KEYCODE(T), \
83     DEFINE_KEYCODE(U), \
84     DEFINE_KEYCODE(V), \
85     DEFINE_KEYCODE(W), \
86     DEFINE_KEYCODE(X), \
87     DEFINE_KEYCODE(Y), \
88     DEFINE_KEYCODE(Z), \
89     DEFINE_KEYCODE(COMMA), \
90     DEFINE_KEYCODE(PERIOD), \
91     DEFINE_KEYCODE(ALT_LEFT), \
92     DEFINE_KEYCODE(ALT_RIGHT), \
93     DEFINE_KEYCODE(SHIFT_LEFT), \
94     DEFINE_KEYCODE(SHIFT_RIGHT), \
95     DEFINE_KEYCODE(TAB), \
96     DEFINE_KEYCODE(SPACE), \
97     DEFINE_KEYCODE(SYM), \
98     DEFINE_KEYCODE(EXPLORER), \
99     DEFINE_KEYCODE(ENVELOPE), \
100     DEFINE_KEYCODE(ENTER), \
101     DEFINE_KEYCODE(DEL), \
102     DEFINE_KEYCODE(GRAVE), \
103     DEFINE_KEYCODE(MINUS), \
104     DEFINE_KEYCODE(EQUALS), \
105     DEFINE_KEYCODE(LEFT_BRACKET), \
106     DEFINE_KEYCODE(RIGHT_BRACKET), \
107     DEFINE_KEYCODE(BACKSLASH), \
108     DEFINE_KEYCODE(SEMICOLON), \
109     DEFINE_KEYCODE(APOSTROPHE), \
110     DEFINE_KEYCODE(SLASH), \
111     DEFINE_KEYCODE(AT), \
112     DEFINE_KEYCODE(NUM), \
113     DEFINE_KEYCODE(HEADSETHOOK), \
114     DEFINE_KEYCODE(FOCUS), \
115     DEFINE_KEYCODE(PLUS), \
116     DEFINE_KEYCODE(MENU), \
117     DEFINE_KEYCODE(NOTIFICATION), \
118     DEFINE_KEYCODE(SEARCH), \
119     DEFINE_KEYCODE(MEDIA_PLAY_PAUSE), \
120     DEFINE_KEYCODE(MEDIA_STOP), \
121     DEFINE_KEYCODE(MEDIA_NEXT), \
122     DEFINE_KEYCODE(MEDIA_PREVIOUS), \
123     DEFINE_KEYCODE(MEDIA_REWIND), \
124     DEFINE_KEYCODE(MEDIA_FAST_FORWARD), \
125     DEFINE_KEYCODE(MUTE), \
126     DEFINE_KEYCODE(PAGE_UP), \
127     DEFINE_KEYCODE(PAGE_DOWN), \
128     DEFINE_KEYCODE(PICTSYMBOLS), \
129     DEFINE_KEYCODE(SWITCH_CHARSET), \
130     DEFINE_KEYCODE(BUTTON_A), \
131     DEFINE_KEYCODE(BUTTON_B), \
132     DEFINE_KEYCODE(BUTTON_C), \
133     DEFINE_KEYCODE(BUTTON_X), \
134     DEFINE_KEYCODE(BUTTON_Y), \
135     DEFINE_KEYCODE(BUTTON_Z), \
136     DEFINE_KEYCODE(BUTTON_L1), \
137     DEFINE_KEYCODE(BUTTON_R1), \
138     DEFINE_KEYCODE(BUTTON_L2), \
139     DEFINE_KEYCODE(BUTTON_R2), \
140     DEFINE_KEYCODE(BUTTON_THUMBL), \
141     DEFINE_KEYCODE(BUTTON_THUMBR), \
142     DEFINE_KEYCODE(BUTTON_START), \
143     DEFINE_KEYCODE(BUTTON_SELECT), \
144     DEFINE_KEYCODE(BUTTON_MODE), \
145     DEFINE_KEYCODE(ESCAPE), \
146     DEFINE_KEYCODE(FORWARD_DEL), \
147     DEFINE_KEYCODE(CTRL_LEFT), \
148     DEFINE_KEYCODE(CTRL_RIGHT), \
149     DEFINE_KEYCODE(CAPS_LOCK), \
150     DEFINE_KEYCODE(SCROLL_LOCK), \
151     DEFINE_KEYCODE(META_LEFT), \
152     DEFINE_KEYCODE(META_RIGHT), \
153     DEFINE_KEYCODE(FUNCTION), \
154     DEFINE_KEYCODE(SYSRQ), \
155     DEFINE_KEYCODE(BREAK), \
156     DEFINE_KEYCODE(MOVE_HOME), \
157     DEFINE_KEYCODE(MOVE_END), \
158     DEFINE_KEYCODE(INSERT), \
159     DEFINE_KEYCODE(FORWARD), \
160     DEFINE_KEYCODE(MEDIA_PLAY), \
161     DEFINE_KEYCODE(MEDIA_PAUSE), \
162     DEFINE_KEYCODE(MEDIA_CLOSE), \
163     DEFINE_KEYCODE(MEDIA_EJECT), \
164     DEFINE_KEYCODE(MEDIA_RECORD), \
165     DEFINE_KEYCODE(F1), \
166     DEFINE_KEYCODE(F2), \
167     DEFINE_KEYCODE(F3), \
168     DEFINE_KEYCODE(F4), \
169     DEFINE_KEYCODE(F5), \
170     DEFINE_KEYCODE(F6), \
171     DEFINE_KEYCODE(F7), \
172     DEFINE_KEYCODE(F8), \
173     DEFINE_KEYCODE(F9), \
174     DEFINE_KEYCODE(F10), \
175     DEFINE_KEYCODE(F11), \
176     DEFINE_KEYCODE(F12), \
177     DEFINE_KEYCODE(NUM_LOCK), \
178     DEFINE_KEYCODE(NUMPAD_0), \
179     DEFINE_KEYCODE(NUMPAD_1), \
180     DEFINE_KEYCODE(NUMPAD_2), \
181     DEFINE_KEYCODE(NUMPAD_3), \
182     DEFINE_KEYCODE(NUMPAD_4), \
183     DEFINE_KEYCODE(NUMPAD_5), \
184     DEFINE_KEYCODE(NUMPAD_6), \
185     DEFINE_KEYCODE(NUMPAD_7), \
186     DEFINE_KEYCODE(NUMPAD_8), \
187     DEFINE_KEYCODE(NUMPAD_9), \
188     DEFINE_KEYCODE(NUMPAD_DIVIDE), \
189     DEFINE_KEYCODE(NUMPAD_MULTIPLY), \
190     DEFINE_KEYCODE(NUMPAD_SUBTRACT), \
191     DEFINE_KEYCODE(NUMPAD_ADD), \
192     DEFINE_KEYCODE(NUMPAD_DOT), \
193     DEFINE_KEYCODE(NUMPAD_COMMA), \
194     DEFINE_KEYCODE(NUMPAD_ENTER), \
195     DEFINE_KEYCODE(NUMPAD_EQUALS), \
196     DEFINE_KEYCODE(NUMPAD_LEFT_PAREN), \
197     DEFINE_KEYCODE(NUMPAD_RIGHT_PAREN), \
198     DEFINE_KEYCODE(VOLUME_MUTE), \
199     DEFINE_KEYCODE(INFO), \
200     DEFINE_KEYCODE(CHANNEL_UP), \
201     DEFINE_KEYCODE(CHANNEL_DOWN), \
202     DEFINE_KEYCODE(ZOOM_IN), \
203     DEFINE_KEYCODE(ZOOM_OUT), \
204     DEFINE_KEYCODE(TV), \
205     DEFINE_KEYCODE(WINDOW), \
206     DEFINE_KEYCODE(GUIDE), \
207     DEFINE_KEYCODE(DVR), \
208     DEFINE_KEYCODE(BOOKMARK), \
209     DEFINE_KEYCODE(CAPTIONS), \
210     DEFINE_KEYCODE(SETTINGS), \
211     DEFINE_KEYCODE(TV_POWER), \
212     DEFINE_KEYCODE(TV_INPUT), \
213     DEFINE_KEYCODE(STB_POWER), \
214     DEFINE_KEYCODE(STB_INPUT), \
215     DEFINE_KEYCODE(AVR_POWER), \
216     DEFINE_KEYCODE(AVR_INPUT), \
217     DEFINE_KEYCODE(PROG_RED), \
218     DEFINE_KEYCODE(PROG_GREEN), \
219     DEFINE_KEYCODE(PROG_YELLOW), \
220     DEFINE_KEYCODE(PROG_BLUE), \
221     DEFINE_KEYCODE(APP_SWITCH), \
222     DEFINE_KEYCODE(BUTTON_1), \
223     DEFINE_KEYCODE(BUTTON_2), \
224     DEFINE_KEYCODE(BUTTON_3), \
225     DEFINE_KEYCODE(BUTTON_4), \
226     DEFINE_KEYCODE(BUTTON_5), \
227     DEFINE_KEYCODE(BUTTON_6), \
228     DEFINE_KEYCODE(BUTTON_7), \
229     DEFINE_KEYCODE(BUTTON_8), \
230     DEFINE_KEYCODE(BUTTON_9), \
231     DEFINE_KEYCODE(BUTTON_10), \
232     DEFINE_KEYCODE(BUTTON_11), \
233     DEFINE_KEYCODE(BUTTON_12), \
234     DEFINE_KEYCODE(BUTTON_13), \
235     DEFINE_KEYCODE(BUTTON_14), \
236     DEFINE_KEYCODE(BUTTON_15), \
237     DEFINE_KEYCODE(BUTTON_16), \
238     DEFINE_KEYCODE(LANGUAGE_SWITCH), \
239     DEFINE_KEYCODE(MANNER_MODE), \
240     DEFINE_KEYCODE(3D_MODE), \
241     DEFINE_KEYCODE(CONTACTS), \
242     DEFINE_KEYCODE(CALENDAR), \
243     DEFINE_KEYCODE(MUSIC), \
244     DEFINE_KEYCODE(CALCULATOR), \
245     DEFINE_KEYCODE(ZENKAKU_HANKAKU), \
246     DEFINE_KEYCODE(EISU), \
247     DEFINE_KEYCODE(MUHENKAN), \
248     DEFINE_KEYCODE(HENKAN), \
249     DEFINE_KEYCODE(KATAKANA_HIRAGANA), \
250     DEFINE_KEYCODE(YEN), \
251     DEFINE_KEYCODE(RO), \
252     DEFINE_KEYCODE(KANA), \
253     DEFINE_KEYCODE(ASSIST), \
254     DEFINE_KEYCODE(BRIGHTNESS_DOWN), \
255     DEFINE_KEYCODE(BRIGHTNESS_UP), \
256     DEFINE_KEYCODE(MEDIA_AUDIO_TRACK), \
257     DEFINE_KEYCODE(SLEEP), \
258     DEFINE_KEYCODE(WAKEUP), \
259     DEFINE_KEYCODE(PAIRING), \
260     DEFINE_KEYCODE(MEDIA_TOP_MENU), \
261     DEFINE_KEYCODE(11), \
262     DEFINE_KEYCODE(12), \
263     DEFINE_KEYCODE(LAST_CHANNEL), \
264     DEFINE_KEYCODE(TV_DATA_SERVICE), \
265     DEFINE_KEYCODE(VOICE_ASSIST), \
266     DEFINE_KEYCODE(TV_RADIO_SERVICE), \
267     DEFINE_KEYCODE(TV_TELETEXT), \
268     DEFINE_KEYCODE(TV_NUMBER_ENTRY), \
269     DEFINE_KEYCODE(TV_TERRESTRIAL_ANALOG), \
270     DEFINE_KEYCODE(TV_TERRESTRIAL_DIGITAL), \
271     DEFINE_KEYCODE(TV_SATELLITE), \
272     DEFINE_KEYCODE(TV_SATELLITE_BS), \
273     DEFINE_KEYCODE(TV_SATELLITE_CS), \
274     DEFINE_KEYCODE(TV_SATELLITE_SERVICE), \
275     DEFINE_KEYCODE(TV_NETWORK), \
276     DEFINE_KEYCODE(TV_ANTENNA_CABLE), \
277     DEFINE_KEYCODE(TV_INPUT_HDMI_1), \
278     DEFINE_KEYCODE(TV_INPUT_HDMI_2), \
279     DEFINE_KEYCODE(TV_INPUT_HDMI_3), \
280     DEFINE_KEYCODE(TV_INPUT_HDMI_4), \
281     DEFINE_KEYCODE(TV_INPUT_COMPOSITE_1), \
282     DEFINE_KEYCODE(TV_INPUT_COMPOSITE_2), \
283     DEFINE_KEYCODE(TV_INPUT_COMPONENT_1), \
284     DEFINE_KEYCODE(TV_INPUT_COMPONENT_2), \
285     DEFINE_KEYCODE(TV_INPUT_VGA_1), \
286     DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION), \
287     DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_UP), \
288     DEFINE_KEYCODE(TV_AUDIO_DESCRIPTION_MIX_DOWN), \
289     DEFINE_KEYCODE(TV_ZOOM_MODE), \
290     DEFINE_KEYCODE(TV_CONTENTS_MENU), \
291     DEFINE_KEYCODE(TV_MEDIA_CONTEXT_MENU), \
292     DEFINE_KEYCODE(TV_TIMER_PROGRAMMING), \
293     DEFINE_KEYCODE(HELP), \
294     DEFINE_KEYCODE(NAVIGATE_PREVIOUS), \
295     DEFINE_KEYCODE(NAVIGATE_NEXT), \
296     DEFINE_KEYCODE(NAVIGATE_IN), \
297     DEFINE_KEYCODE(NAVIGATE_OUT), \
298     DEFINE_KEYCODE(STEM_PRIMARY), \
299     DEFINE_KEYCODE(STEM_1), \
300     DEFINE_KEYCODE(STEM_2), \
301     DEFINE_KEYCODE(STEM_3), \
302     DEFINE_KEYCODE(DPAD_UP_LEFT), \
303     DEFINE_KEYCODE(DPAD_DOWN_LEFT), \
304     DEFINE_KEYCODE(DPAD_UP_RIGHT), \
305     DEFINE_KEYCODE(DPAD_DOWN_RIGHT), \
306     DEFINE_KEYCODE(MEDIA_SKIP_FORWARD), \
307     DEFINE_KEYCODE(MEDIA_SKIP_BACKWARD), \
308     DEFINE_KEYCODE(MEDIA_STEP_FORWARD), \
309     DEFINE_KEYCODE(MEDIA_STEP_BACKWARD), \
310     DEFINE_KEYCODE(SOFT_SLEEP), \
311     DEFINE_KEYCODE(CUT), \
312     DEFINE_KEYCODE(COPY), \
313     DEFINE_KEYCODE(PASTE), \
314     DEFINE_KEYCODE(SYSTEM_NAVIGATION_UP), \
315     DEFINE_KEYCODE(SYSTEM_NAVIGATION_DOWN), \
316     DEFINE_KEYCODE(SYSTEM_NAVIGATION_LEFT), \
317     DEFINE_KEYCODE(SYSTEM_NAVIGATION_RIGHT), \
318     DEFINE_KEYCODE(ALL_APPS), \
319     DEFINE_KEYCODE(REFRESH), \
320     DEFINE_KEYCODE(THUMBS_UP), \
321     DEFINE_KEYCODE(THUMBS_DOWN), \
322     DEFINE_KEYCODE(PROFILE_SWITCH), \
323     DEFINE_KEYCODE(VIDEO_APP_1), \
324     DEFINE_KEYCODE(VIDEO_APP_2), \
325     DEFINE_KEYCODE(VIDEO_APP_3), \
326     DEFINE_KEYCODE(VIDEO_APP_4), \
327     DEFINE_KEYCODE(VIDEO_APP_5), \
328     DEFINE_KEYCODE(VIDEO_APP_6), \
329     DEFINE_KEYCODE(VIDEO_APP_7), \
330     DEFINE_KEYCODE(VIDEO_APP_8), \
331     DEFINE_KEYCODE(FEATURED_APP_1), \
332     DEFINE_KEYCODE(FEATURED_APP_2), \
333     DEFINE_KEYCODE(FEATURED_APP_3), \
334     DEFINE_KEYCODE(FEATURED_APP_4), \
335     DEFINE_KEYCODE(DEMO_APP_1), \
336     DEFINE_KEYCODE(DEMO_APP_2), \
337     DEFINE_KEYCODE(DEMO_APP_3), \
338     DEFINE_KEYCODE(DEMO_APP_4), \
339     DEFINE_KEYCODE(KEYBOARD_BACKLIGHT_DOWN), \
340     DEFINE_KEYCODE(KEYBOARD_BACKLIGHT_UP), \
341     DEFINE_KEYCODE(KEYBOARD_BACKLIGHT_TOGGLE), \
342     DEFINE_KEYCODE(STYLUS_BUTTON_PRIMARY), \
343     DEFINE_KEYCODE(STYLUS_BUTTON_SECONDARY), \
344     DEFINE_KEYCODE(STYLUS_BUTTON_TERTIARY), \
345     DEFINE_KEYCODE(STYLUS_BUTTON_TAIL), \
346     DEFINE_KEYCODE(RECENT_APPS), \
347     DEFINE_KEYCODE(MACRO_1), \
348     DEFINE_KEYCODE(MACRO_2), \
349     DEFINE_KEYCODE(MACRO_3), \
350     DEFINE_KEYCODE(MACRO_4)
351 
352 // NOTE: If you add a new axis here you must also add it to several other files.
353 //       Refer to frameworks/base/core/java/android/view/MotionEvent.java for the full list.
354 #define AXES_SEQUENCE \
355     DEFINE_AXIS(X), \
356     DEFINE_AXIS(Y), \
357     DEFINE_AXIS(PRESSURE), \
358     DEFINE_AXIS(SIZE), \
359     DEFINE_AXIS(TOUCH_MAJOR), \
360     DEFINE_AXIS(TOUCH_MINOR), \
361     DEFINE_AXIS(TOOL_MAJOR), \
362     DEFINE_AXIS(TOOL_MINOR), \
363     DEFINE_AXIS(ORIENTATION), \
364     DEFINE_AXIS(VSCROLL), \
365     DEFINE_AXIS(HSCROLL), \
366     DEFINE_AXIS(Z), \
367     DEFINE_AXIS(RX), \
368     DEFINE_AXIS(RY), \
369     DEFINE_AXIS(RZ), \
370     DEFINE_AXIS(HAT_X), \
371     DEFINE_AXIS(HAT_Y), \
372     DEFINE_AXIS(LTRIGGER), \
373     DEFINE_AXIS(RTRIGGER), \
374     DEFINE_AXIS(THROTTLE), \
375     DEFINE_AXIS(RUDDER), \
376     DEFINE_AXIS(WHEEL), \
377     DEFINE_AXIS(GAS), \
378     DEFINE_AXIS(BRAKE), \
379     DEFINE_AXIS(DISTANCE), \
380     DEFINE_AXIS(TILT), \
381     DEFINE_AXIS(SCROLL), \
382     DEFINE_AXIS(RELATIVE_X), \
383     DEFINE_AXIS(RELATIVE_Y), \
384     {"RESERVED_29", 29}, \
385     {"RESERVED_30", 30}, \
386     {"RESERVED_31", 31}, \
387     DEFINE_AXIS(GENERIC_1), \
388     DEFINE_AXIS(GENERIC_2), \
389     DEFINE_AXIS(GENERIC_3), \
390     DEFINE_AXIS(GENERIC_4), \
391     DEFINE_AXIS(GENERIC_5), \
392     DEFINE_AXIS(GENERIC_6), \
393     DEFINE_AXIS(GENERIC_7), \
394     DEFINE_AXIS(GENERIC_8), \
395     DEFINE_AXIS(GENERIC_9), \
396     DEFINE_AXIS(GENERIC_10), \
397     DEFINE_AXIS(GENERIC_11), \
398     DEFINE_AXIS(GENERIC_12), \
399     DEFINE_AXIS(GENERIC_13), \
400     DEFINE_AXIS(GENERIC_14), \
401     DEFINE_AXIS(GENERIC_15), \
402     DEFINE_AXIS(GENERIC_16), \
403     DEFINE_AXIS(GESTURE_X_OFFSET), \
404     DEFINE_AXIS(GESTURE_Y_OFFSET), \
405     DEFINE_AXIS(GESTURE_SCROLL_X_DISTANCE), \
406     DEFINE_AXIS(GESTURE_SCROLL_Y_DISTANCE), \
407     DEFINE_AXIS(GESTURE_PINCH_SCALE_FACTOR), \
408     DEFINE_AXIS(GESTURE_SWIPE_FINGER_COUNT)
409 
410 // NOTE: If you add new LEDs here, you must also add them to Input.h
411 #define LEDS_SEQUENCE \
412     DEFINE_LED(NUM_LOCK), \
413     DEFINE_LED(CAPS_LOCK), \
414     DEFINE_LED(SCROLL_LOCK), \
415     DEFINE_LED(COMPOSE), \
416     DEFINE_LED(KANA), \
417     DEFINE_LED(SLEEP), \
418     DEFINE_LED(SUSPEND), \
419     DEFINE_LED(MUTE), \
420     DEFINE_LED(MISC), \
421     DEFINE_LED(MAIL), \
422     DEFINE_LED(CHARGING), \
423     DEFINE_LED(CONTROLLER_1), \
424     DEFINE_LED(CONTROLLER_2), \
425     DEFINE_LED(CONTROLLER_3), \
426     DEFINE_LED(CONTROLLER_4)
427 
428 #define FLAGS_SEQUENCE \
429     DEFINE_FLAG(VIRTUAL), \
430     DEFINE_FLAG(FUNCTION), \
431     DEFINE_FLAG(GESTURE), \
432     DEFINE_FLAG(WAKE)
433 
434 // clang-format on
435 
436 // --- InputEventLookup ---
437 
InputEventLookup()438 InputEventLookup::InputEventLookup()
439       : KEYCODES({KEYCODES_SEQUENCE}),
440         KEY_NAMES({KEYCODES_SEQUENCE}),
441         AXES({AXES_SEQUENCE}),
442         AXES_NAMES({AXES_SEQUENCE}),
443         LEDS({LEDS_SEQUENCE}),
444         FLAGS({FLAGS_SEQUENCE}) {}
445 
lookupValueByLabel(const std::unordered_map<std::string,int> & map,const char * literal)446 std::optional<int> InputEventLookup::lookupValueByLabel(
447         const std::unordered_map<std::string, int>& map, const char* literal) {
448     std::string str(literal);
449     auto it = map.find(str);
450     return it != map.end() ? std::make_optional(it->second) : std::nullopt;
451 }
452 
lookupLabelByValue(const std::vector<InputEventLabel> & vec,int value)453 const char* InputEventLookup::lookupLabelByValue(const std::vector<InputEventLabel>& vec,
454                                                  int value) {
455     if (static_cast<size_t>(value) < vec.size()) {
456         return vec[value].literal;
457     }
458     return nullptr;
459 }
460 
getKeyCodeByLabel(const char * label)461 std::optional<int> InputEventLookup::getKeyCodeByLabel(const char* label) {
462     const auto& self = get();
463     return self.lookupValueByLabel(self.KEYCODES, label);
464 }
465 
getLabelByKeyCode(int32_t keyCode)466 const char* InputEventLookup::getLabelByKeyCode(int32_t keyCode) {
467     const auto& self = get();
468     if (keyCode >= 0 && static_cast<size_t>(keyCode) < self.KEYCODES.size()) {
469         return get().lookupLabelByValue(self.KEY_NAMES, keyCode);
470     }
471     return nullptr;
472 }
473 
getKeyFlagByLabel(const char * label)474 std::optional<int> InputEventLookup::getKeyFlagByLabel(const char* label) {
475     const auto& self = get();
476     return lookupValueByLabel(self.FLAGS, label);
477 }
478 
getAxisByLabel(const char * label)479 std::optional<int> InputEventLookup::getAxisByLabel(const char* label) {
480     const auto& self = get();
481     return lookupValueByLabel(self.AXES, label);
482 }
483 
getAxisLabel(int32_t axisId)484 const char* InputEventLookup::getAxisLabel(int32_t axisId) {
485     const auto& self = get();
486     return lookupLabelByValue(self.AXES_NAMES, axisId);
487 }
488 
getLedByLabel(const char * label)489 std::optional<int> InputEventLookup::getLedByLabel(const char* label) {
490     const auto& self = get();
491     return lookupValueByLabel(self.LEDS, label);
492 }
493 
494 namespace {
495 
496 struct label {
497     const char* name;
498     int value;
499 };
500 
501 #define LABEL(constant) \
502     { #constant, constant }
503 #define LABEL_END \
504     { nullptr, -1 }
505 
506 static struct label ev_key_value_labels[] = {
507         {"UP", 0},
508         {"DOWN", 1},
509         {"REPEAT", 2},
510         LABEL_END,
511 };
512 
513 #include "input.h-labels.h"
514 
515 #undef LABEL
516 #undef LABEL_END
517 
getLabel(const label * labels,int value)518 std::string getLabel(const label* labels, int value) {
519     if (labels == nullptr) return std::to_string(value);
520     while (labels->name != nullptr && value != labels->value) {
521         labels++;
522     }
523     return labels->name != nullptr ? labels->name : std::to_string(value);
524 }
525 
getCodeLabelsForType(int32_t type)526 const label* getCodeLabelsForType(int32_t type) {
527     switch (type) {
528         case EV_SYN:
529             return syn_labels;
530         case EV_KEY:
531             return key_labels;
532         case EV_REL:
533             return rel_labels;
534         case EV_ABS:
535             return abs_labels;
536         case EV_SW:
537             return sw_labels;
538         case EV_MSC:
539             return msc_labels;
540         case EV_LED:
541             return led_labels;
542         case EV_REP:
543             return rep_labels;
544         case EV_SND:
545             return snd_labels;
546         case EV_FF:
547             return ff_labels;
548         case EV_FF_STATUS:
549             return ff_status_labels;
550         default:
551             return nullptr;
552     }
553 }
554 
getValueLabelsForTypeAndCode(int32_t type,int32_t code)555 const label* getValueLabelsForTypeAndCode(int32_t type, int32_t code) {
556     if (type == EV_KEY) {
557         return ev_key_value_labels;
558     }
559     if (type == EV_MSC && code == ABS_MT_TOOL_TYPE) {
560         return mt_tool_labels;
561     }
562     return nullptr;
563 }
564 
565 } // namespace
566 
getLinuxEvdevLabel(int32_t type,int32_t code,int32_t value)567 EvdevEventLabel InputEventLookup::getLinuxEvdevLabel(int32_t type, int32_t code, int32_t value) {
568     return {
569             .type = getLabel(ev_labels, type),
570             .code = getLabel(getCodeLabelsForType(type), code),
571             .value = getLabel(getValueLabelsForTypeAndCode(type, code), value),
572     };
573 }
574 
575 } // namespace android
576