1 /*
2 * $Id: evtest.c,v 1.23 2005/02/06 13:51:42 vojtech Exp $
3 *
4 * Copyright (c) 1999-2000 Vojtech Pavlik
5 *
6 * Event device test program
7 */
8
9 /*
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */
28
29 #include <stdint.h>
30
31 #include <linux/input.h>
32
33 #include <string.h>
34 #include <fcntl.h>
35 #include <unistd.h>
36 #include <stdio.h>
37
38 #ifndef EV_SYN
39 #define EV_SYN 0
40 #endif
41
42 char *events[EV_MAX + 1] = {
43 [0 ... EV_MAX] = NULL,
44 [EV_SYN] = "Sync", [EV_KEY] = "Key",
45 [EV_REL] = "Relative", [EV_ABS] = "Absolute",
46 [EV_MSC] = "Misc", [EV_LED] = "LED",
47 [EV_SND] = "Sound", [EV_REP] = "Repeat",
48 [EV_FF] = "ForceFeedback", [EV_PWR] = "Power",
49 [EV_FF_STATUS] = "ForceFeedbackStatus", [EV_SW] = "Switch",
50 };
51
52 char *keys[KEY_MAX + 1] = {
53 [0 ... KEY_MAX] = NULL,
54 [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
55 [KEY_1] = "1", [KEY_2] = "2",
56 [KEY_3] = "3", [KEY_4] = "4",
57 [KEY_5] = "5", [KEY_6] = "6",
58 [KEY_7] = "7", [KEY_8] = "8",
59 [KEY_9] = "9", [KEY_0] = "0",
60 [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
61 [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
62 [KEY_Q] = "Q", [KEY_W] = "W",
63 [KEY_E] = "E", [KEY_R] = "R",
64 [KEY_T] = "T", [KEY_Y] = "Y",
65 [KEY_U] = "U", [KEY_I] = "I",
66 [KEY_O] = "O", [KEY_P] = "P",
67 [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
68 [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
69 [KEY_A] = "A", [KEY_S] = "S",
70 [KEY_D] = "D", [KEY_F] = "F",
71 [KEY_G] = "G", [KEY_H] = "H",
72 [KEY_J] = "J", [KEY_K] = "K",
73 [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
74 [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
75 [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
76 [KEY_Z] = "Z", [KEY_X] = "X",
77 [KEY_C] = "C", [KEY_V] = "V",
78 [KEY_B] = "B", [KEY_N] = "N",
79 [KEY_M] = "M", [KEY_COMMA] = "Comma",
80 [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
81 [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
82 [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
83 [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
84 [KEY_F2] = "F2", [KEY_F3] = "F3",
85 [KEY_F4] = "F4", [KEY_F5] = "F5",
86 [KEY_F6] = "F6", [KEY_F7] = "F7",
87 [KEY_F8] = "F8", [KEY_F9] = "F9",
88 [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
89 [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
90 [KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
91 [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
92 [KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
93 [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
94 [KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
95 [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
96 [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
97 [KEY_F11] = "F11", [KEY_F12] = "F12",
98 [KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana",
99 [KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan",
100 [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan",
101 [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
102 [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
103 [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
104 [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
105 [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
106 [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
107 [KEY_END] = "End", [KEY_DOWN] = "Down",
108 [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
109 [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
110 [KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown",
111 [KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power",
112 [KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus",
113 [KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma",
114 [KEY_HANGUEL] = "Hanguel", [KEY_HANJA] = "Hanja",
115 [KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta",
116 [KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose",
117 [KEY_STOP] = "Stop", [KEY_AGAIN] = "Again",
118 [KEY_PROPS] = "Props", [KEY_UNDO] = "Undo",
119 [KEY_FRONT] = "Front", [KEY_COPY] = "Copy",
120 [KEY_OPEN] = "Open", [KEY_PASTE] = "Paste",
121 [KEY_FIND] = "Find", [KEY_CUT] = "Cut",
122 [KEY_HELP] = "Help", [KEY_MENU] = "Menu",
123 [KEY_CALC] = "Calc", [KEY_SETUP] = "Setup",
124 [KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp",
125 [KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile",
126 [KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer",
127 [KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2",
128 [KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS",
129 [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
130 [KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail",
131 [KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer",
132 [KEY_BACK] = "Back", [KEY_FORWARD] = "Forward",
133 [KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD",
134 [KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong",
135 [KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong",
136 [KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record",
137 [KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone",
138 [KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config",
139 [KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh",
140 [KEY_EXIT] = "Exit", [KEY_MOVE] = "Move",
141 [KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp",
142 [KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis",
143 [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_F13] = "F13",
144 [KEY_F14] = "F14", [KEY_F15] = "F15",
145 [KEY_F16] = "F16", [KEY_F17] = "F17",
146 [KEY_F18] = "F18", [KEY_F19] = "F19",
147 [KEY_F20] = "F20", [KEY_F21] = "F21",
148 [KEY_F22] = "F22", [KEY_F23] = "F23",
149 [KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD",
150 [KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3",
151 [KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend",
152 [KEY_CLOSE] = "Close", [KEY_PLAY] = "Play",
153 [KEY_FASTFORWARD] = "Fast Forward", [KEY_BASSBOOST] = "Bass Boost",
154 [KEY_PRINT] = "Print", [KEY_HP] = "HP",
155 [KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound",
156 [KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email",
157 [KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search",
158 [KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance",
159 [KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop",
160 [KEY_ALTERASE] = "Alternate Erase", [KEY_CANCEL] = "Cancel",
161 [KEY_BRIGHTNESSDOWN] = "Brightness down", [KEY_BRIGHTNESSUP] = "Brightness up",
162 [KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown",
163 [BTN_0] = "Btn0", [BTN_1] = "Btn1",
164 [BTN_2] = "Btn2", [BTN_3] = "Btn3",
165 [BTN_4] = "Btn4", [BTN_5] = "Btn5",
166 [BTN_6] = "Btn6", [BTN_7] = "Btn7",
167 [BTN_8] = "Btn8", [BTN_9] = "Btn9",
168 [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
169 [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
170 [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
171 [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
172 [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
173 [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
174 [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
175 [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
176 [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
177 [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
178 [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
179 [BTN_B] = "BtnB", [BTN_C] = "BtnC",
180 [BTN_X] = "BtnX", [BTN_Y] = "BtnY",
181 [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
182 [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
183 [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
184 [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
185 [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
186 [BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber",
187 [BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil",
188 [BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger",
189 [BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens",
190 [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
191 [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
192 [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
193 [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
194 [KEY_SELECT] = "Select", [KEY_GOTO] = "Goto",
195 [KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2",
196 [KEY_OPTION] = "Option", [KEY_INFO] = "Info",
197 [KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor",
198 [KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program",
199 [KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites",
200 [KEY_EPG] = "EPG", [KEY_PVR] = "PVR",
201 [KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language",
202 [KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle",
203 [KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom",
204 [KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard",
205 [KEY_SCREEN] = "Screen", [KEY_PC] = "PC",
206 [KEY_TV] = "TV", [KEY_TV2] = "TV2",
207 [KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2",
208 [KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2",
209 [KEY_CD] = "CD", [KEY_TAPE] = "Tape",
210 [KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner",
211 [KEY_PLAYER] = "Player", [KEY_TEXT] = "Text",
212 [KEY_DVD] = "DVD", [KEY_AUX] = "Aux",
213 [KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio",
214 [KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory",
215 [KEY_LIST] = "List", [KEY_MEMO] = "Memo",
216 [KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red",
217 [KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow",
218 [KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp",
219 [KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First",
220 [KEY_LAST] = "Last", [KEY_AB] = "AB",
221 [KEY_NEXT] = "Next", [KEY_RESTART] = "Restart",
222 [KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle",
223 [KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous",
224 [KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN",
225 [KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "Delete EOL",
226 [KEY_DEL_EOS] = "Delete EOS", [KEY_INS_LINE] = "Insert line",
227 [KEY_DEL_LINE] = "Delete line",
228 };
229
230 char *absval[5] = { "Value", "Min ", "Max ", "Fuzz ", "Flat " };
231
232 char *relatives[REL_MAX + 1] = {
233 [0 ... REL_MAX] = NULL,
234 [REL_X] = "X", [REL_Y] = "Y",
235 [REL_Z] = "Z", [REL_HWHEEL] = "HWheel",
236 [REL_DIAL] = "Dial", [REL_WHEEL] = "Wheel",
237 [REL_MISC] = "Misc",
238 };
239
240 char *absolutes[ABS_MAX + 1] = {
241 [0 ... ABS_MAX] = NULL,
242 [ABS_X] = "X", [ABS_Y] = "Y",
243 [ABS_Z] = "Z", [ABS_RX] = "Rx",
244 [ABS_RY] = "Ry", [ABS_RZ] = "Rz",
245 [ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder",
246 [ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas",
247 [ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X",
248 [ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X",
249 [ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X",
250 [ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X",
251 [ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure",
252 [ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt",
253 [ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "Tool Width",
254 [ABS_VOLUME] = "Volume", [ABS_MISC] = "Misc",
255 };
256
257 char *misc[MSC_MAX + 1] = {
258 [ 0 ... MSC_MAX] = NULL,
259 [MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled",
260 [MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData",
261 [MSC_SCAN] = "ScanCode",
262 };
263
264 char *leds[LED_MAX + 1] = {
265 [0 ... LED_MAX] = NULL,
266 [LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock",
267 [LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose",
268 [LED_KANA] = "Kana", [LED_SLEEP] = "Sleep",
269 [LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute",
270 [LED_MISC] = "Misc",
271 };
272
273 char *repeats[REP_MAX + 1] = {
274 [0 ... REP_MAX] = NULL,
275 [REP_DELAY] = "Delay", [REP_PERIOD] = "Period"
276 };
277
278 char *sounds[SND_MAX + 1] = {
279 [0 ... SND_MAX] = NULL,
280 [SND_CLICK] = "Click", [SND_BELL] = "Bell",
281 [SND_TONE] = "Tone"
282 };
283
284 char *switches[SW_MAX + 1] = {
285 [0 ... SW_MAX] = NULL,
286 [SW_LID] = "Lid", [SW_TABLET_MODE] = "Tablet Mode",
287 [SW_HEADPHONE_INSERT] = "Headphone", [SW_RFKILL_ALL] = "RF Kill",
288 [SW_MICROPHONE_INSERT] = "Microphone", [SW_DOCK] = "Dock",
289 [SW_LINEOUT_INSERT] = "Lineout", [SW_JACK_PHYSICAL_INSERT] = "Jack Physical",
290 [SW_VIDEOOUT_INSERT] = "Video Out"
291 };
292
293 char **names[EV_MAX + 1] = {
294 [0 ... EV_MAX] = NULL,
295 [EV_SYN] = events, [EV_KEY] = keys,
296 [EV_REL] = relatives, [EV_ABS] = absolutes,
297 [EV_MSC] = misc, [EV_LED] = leds,
298 [EV_SND] = sounds, [EV_REP] = repeats,
299 [EV_SW] = switches,
300 };
301
302 #define BITS_PER_LONG (sizeof(long) * 8)
303 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
304 #define OFF(x) ((x)%BITS_PER_LONG)
305 #define BIT(x) (1UL<<OFF(x))
306 #define LONG(x) ((x)/BITS_PER_LONG)
307 #define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
308
keycode_from_name(char * name)309 int keycode_from_name(char *name)
310 {
311 int i = 0;
312 for(i = 1; i < KEY_MAX; i++) {
313 if (keys[i] && 0 == strcmp(keys[i], name))
314 return i;
315 }
316 return 0;
317 }
318
do_single_key_capture(int fd)319 int do_single_key_capture(int fd)
320 {
321 struct input_event ev[64];
322 int i, rd;
323 int code = 0;
324 int state = 0; // assume keys are up.
325 while (1) {
326 rd = read(fd, ev, sizeof(struct input_event) * 64);
327
328 if (rd < (int) sizeof(struct input_event)) {
329 perror("\nevtest: error reading");
330 return 1;
331 }
332
333 for (i = 0; i < rd / sizeof(struct input_event); i++)
334 if (ev[i].type == EV_KEY) {
335 if (0 == state && 1 == ev[i].value) {
336 code = ev[i].code;
337 state = 1;
338 } else if (code == ev[i].code &&
339 0 == ev[i].value &&
340 1 == state) {
341 // key up.
342 printf("%s",
343 names[ev[i].type][ev[i].code]);
344 return 0;
345 }
346 }
347 }
348 }
349
is_key_supported(int fd,char * key_name)350 int is_key_supported(int fd, char *key_name)
351 {
352 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
353 int keycode = keycode_from_name(key_name);
354 if (keycode) {
355 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
356 if (test_bit(keycode, bit[EV_KEY])) {
357 printf("%d", keycode);
358 return 0; // key found
359 } else {
360 printf("Not found");
361 return 1;
362 }
363 } else { /* zero keycode is invalid */
364 printf("Invalid keycode %s", key_name);
365 return 1;
366 }
367 }
368
369
do_check_num_keys(int fd)370 int do_check_num_keys(int fd)
371 {
372 int num_keys = 0;
373 int j = 0;
374 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
375 memset(bit, 0, sizeof(bit));
376 ioctl(fd, EVIOCGBIT(0,EV_MAX), bit[0]);
377 if (test_bit(EV_KEY, bit[0])) {
378 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
379 for(j = 0; j < KEY_MAX; j++)
380 if (test_bit(j,bit[EV_KEY])) {
381 // found a supported key
382 num_keys++;
383 }
384 }
385 printf("%d", num_keys);
386 return 0;
387 }
388
389 // Normal evtest. Print input device information then read from the event
390 // until the user interrupts.
do_evtest_dumpall(int fd)391 int do_evtest_dumpall(int fd)
392 {
393 int rd, i, j, k;
394 struct input_event ev[64];
395 int version;
396 unsigned short id[4];
397 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
398 char name[256] = "Unknown";
399 int abs[5];
400
401 printf("Input driver version is %d.%d.%d\n",
402 version >> 16, (version >> 8) & 0xff, version & 0xff);
403
404 ioctl(fd, EVIOCGID, id);
405 printf("Input device ID: bus 0x%x vendor 0x%x product 0x%x version 0x%x\n",
406 id[ID_BUS], id[ID_VENDOR], id[ID_PRODUCT], id[ID_VERSION]);
407
408 ioctl(fd, EVIOCGNAME(sizeof(name)), name);
409 printf("Input device name: \"%s\"\n", name);
410 memset(bit, 0, sizeof(bit));
411 ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
412 printf("Supported events:\n");
413 for (i = 0; i < EV_MAX; i++)
414 if (test_bit(i, bit[0])) {
415 printf(" Event type %d (%s)\n", i,
416 events[i] ? events[i] : "?");
417 if (!i) continue;
418 ioctl(fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
419 for (j = 0; j < KEY_MAX; j++)
420 if (test_bit(j, bit[i])) {
421 char *p = "?";
422 if (names[i] && names[i][j])
423 p = names[i][j];
424 printf(" Event code %d (%s)\n",
425 j, p);
426 if (i == EV_SW) {
427 ioctl(fd, EVIOCGSW(sizeof(bit[i])), bit[i]);
428 printf(" Switch value = %d\n",
429 (int)test_bit(j, bit[i]));
430 }
431 if (i == EV_ABS) {
432 ioctl(fd, EVIOCGABS(j), abs);
433 for (k = 0; k < 5; k++)
434 if ((k < 3) || abs[k])
435 printf(" %s %6d\n",
436 absval[k], abs[k]);
437 }
438 }
439 }
440
441 printf("Testing ... (interrupt to exit)\n");
442
443 while (1) {
444 rd = read(fd, ev, sizeof(struct input_event) * 64);
445
446 if (rd < (int) sizeof(struct input_event)) {
447 perror("\nevtest: error reading");
448 return 1;
449 }
450
451 for (i = 0; i < rd / sizeof(struct input_event); i++)
452
453 if (ev[i].type == EV_SYN) {
454 printf("Event: time %ld.%06ld, -------------- %s ------------\n",
455 ev[i].time.tv_sec, ev[i].time.tv_usec,
456 ev[i].code ? "Config Sync" : "Report Sync" );
457 } else if (ev[i].type == EV_MSC &&
458 (ev[i].code == MSC_RAW || ev[i].code == MSC_SCAN)) {
459 char * p = "?";
460 if (names[ev[i].type] && names[ev[i].type][ev[i].code])
461 p = names[ev[i].type][ev[i].code];
462 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %02x\n",
463 ev[i].time.tv_sec, ev[i].time.tv_usec,
464 ev[i].type,
465 events[ev[i].type] ? events[ev[i].type] : "?",
466 ev[i].code,
467 p,
468 ev[i].value);
469 } else {
470 char * p = "?";
471 if (names[ev[i].type] && names[ev[i].type][ev[i].code])
472 p = names[ev[i].type][ev[i].code];
473 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %d\n",
474 ev[i].time.tv_sec, ev[i].time.tv_usec,
475 ev[i].type,
476 events[ev[i].type] ? events[ev[i].type] : "?",
477 ev[i].code,
478 p,
479 ev[i].value);
480 }
481
482 }
483 }
484
main(int argc,char ** argv)485 int main (int argc, char **argv)
486 {
487 int path_index, fd, rd, i, j, k;
488 struct input_event ev[64];
489 int version;
490 unsigned short id[4];
491 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
492 char name[256] = "Unknown";
493 int abs[5];
494 int check_num_keys = 0;
495 int supported_key_arg_index = 0;
496 int single_key_capture = 0;
497
498 if (argc < 2) {
499 goto Usage;
500 }
501
502 for (i = 1; i < argc; i++) {
503 if (0 == strcmp(argv[i], "-n")) {
504 /* number of keys supported by this event */
505 check_num_keys = 1;
506 } else if (0 == strcmp(argv[i], "-k")) {
507 single_key_capture = 1;
508 } else if (0 == strcmp(argv[i], "-s")) {/* supported key flag */
509 if (i + 1 <= argc - 1) {
510 supported_key_arg_index = ++i;
511 } else {
512 goto Usage;
513 }
514 } else {
515 path_index = i;
516 }
517 }
518
519 if ((fd = open(argv[path_index], O_RDONLY)) < 0) {
520 perror("evtest");
521 return 1;
522 }
523
524 if (single_key_capture)
525 return do_single_key_capture(fd);
526
527 if (check_num_keys)
528 return do_check_num_keys(fd);
529
530 if (supported_key_arg_index)
531 return is_key_supported(fd, argv[supported_key_arg_index]);
532
533 if (ioctl(fd, EVIOCGVERSION, &version)) {
534 perror("evtest: can't get version");
535 return 1;
536 }
537
538 return do_evtest_dumpall(fd);
539
540 Usage:
541 printf("Usage: evtest [OPTIONS] /dev/input/eventX\n");
542 printf("Where X = input device number\n");
543 printf("Exclusive Options (just choose one):\n");
544 printf(" -n Show number of keys supported by eventX\n");
545 printf(" -s Keyname Outputs 1 if key is supported. Outputs 0 if not\n");
546 printf(" -k Captures one full keystroke (down and up). Outputs keyname.\n");
547 return 1;
548 }
549