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Dees_Troy51a0e822012-09-05 15:24:24 -04001/*
2 * Copyright (C) 2007 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 <stdio.h>
18#include <stdlib.h>
19#include <fcntl.h>
20#include <dirent.h>
21#include <sys/poll.h>
22#include <limits.h>
Dees_Troy51a0e822012-09-05 15:24:24 -040023#include <linux/input.h>
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +010024#include <sys/types.h>
25#include <sys/stat.h>
26#include <unistd.h>
Ethan Yonkerc798c9c2015-10-09 11:15:26 -050027#include <stdio.h>
28#include <string.h>
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +010029
Dees_Troy51a0e822012-09-05 15:24:24 -040030
31#include "../common.h"
32
33#include "minui.h"
34
35//#define _EVENT_LOGGING
36
Dees_Troy3f23d9e2013-05-03 21:04:05 +000037#define MAX_DEVICES 32
Dees_Troy51a0e822012-09-05 15:24:24 -040038
39#define VIBRATOR_TIMEOUT_FILE "/sys/class/timed_output/vibrator/enable"
40#define VIBRATOR_TIME_MS 50
41
Dees_Troyf7596752012-09-28 13:21:36 -040042#ifndef SYN_REPORT
Dees_Troy51a0e822012-09-05 15:24:24 -040043#define SYN_REPORT 0x00
Dees_Troyf7596752012-09-28 13:21:36 -040044#endif
45#ifndef SYN_CONFIG
Dees_Troy51a0e822012-09-05 15:24:24 -040046#define SYN_CONFIG 0x01
Dees_Troyf7596752012-09-28 13:21:36 -040047#endif
48#ifndef SYN_MT_REPORT
Dees_Troy51a0e822012-09-05 15:24:24 -040049#define SYN_MT_REPORT 0x02
Dees_Troyf7596752012-09-28 13:21:36 -040050#endif
Dees_Troy51a0e822012-09-05 15:24:24 -040051
52#define ABS_MT_POSITION 0x2a /* Group a set of X and Y */
53#define ABS_MT_AMPLITUDE 0x2b /* Group a set of Z and W */
54#define ABS_MT_SLOT 0x2f
55#define ABS_MT_TOUCH_MAJOR 0x30
56#define ABS_MT_TOUCH_MINOR 0x31
57#define ABS_MT_WIDTH_MAJOR 0x32
58#define ABS_MT_WIDTH_MINOR 0x33
59#define ABS_MT_ORIENTATION 0x34
60#define ABS_MT_POSITION_X 0x35
61#define ABS_MT_POSITION_Y 0x36
62#define ABS_MT_TOOL_TYPE 0x37
63#define ABS_MT_BLOB_ID 0x38
64#define ABS_MT_TRACKING_ID 0x39
65#define ABS_MT_PRESSURE 0x3a
66#define ABS_MT_DISTANCE 0x3b
67
68enum {
69 DOWN_NOT,
70 DOWN_SENT,
71 DOWN_RELEASED,
72};
73
74struct virtualkey {
75 int scancode;
76 int centerx, centery;
77 int width, height;
78};
79
80struct position {
81 int x, y;
82 int synced;
83 struct input_absinfo xi, yi;
84};
85
86struct ev {
87 struct pollfd *fd;
88
89 struct virtualkey *vks;
90 int vk_count;
91
92 char deviceName[64];
93
94 int ignored;
95
96 struct position p, mt_p;
97 int down;
98};
99
100static struct pollfd ev_fds[MAX_DEVICES];
101static struct ev evs[MAX_DEVICES];
102static unsigned ev_count = 0;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100103static struct timeval lastInputStat;
Ethan Yonker58f21322018-08-24 11:17:36 -0500104static time_t lastInputMTime;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100105static int has_mouse = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400106
107static inline int ABS(int x) {
108 return x<0?-x:x;
109}
110
111int vibrate(int timeout_ms)
112{
113 char str[20];
114 int fd;
115 int ret;
116
Samer Diab (S.a.M.e.R_d)71e9b042014-01-07 20:18:47 +0000117 if (timeout_ms > 10000) timeout_ms = 1000;
118
Dees_Troy51a0e822012-09-05 15:24:24 -0400119 fd = open(VIBRATOR_TIMEOUT_FILE, O_WRONLY);
120 if (fd < 0)
121 return -1;
122
123 ret = snprintf(str, sizeof(str), "%d", timeout_ms);
124 ret = write(fd, str, ret);
125 close(fd);
126
127 if (ret < 0)
128 return -1;
129
130 return 0;
131}
132
133/* Returns empty tokens */
134static char *vk_strtok_r(char *str, const char *delim, char **save_str)
135{
136 if(!str)
137 {
138 if(!*save_str)
139 return NULL;
140
141 str = (*save_str) + 1;
142 }
143 *save_str = strpbrk(str, delim);
144
145 if (*save_str)
146 **save_str = '\0';
147
148 return str;
149}
150
151static int vk_init(struct ev *e)
152{
153 char vk_path[PATH_MAX] = "/sys/board_properties/virtualkeys.";
154 char vks[2048], *ts = NULL;
155 ssize_t len;
156 int vk_fd;
157 int i;
158
159 e->vk_count = 0;
160
161 len = strlen(vk_path);
162 len = ioctl(e->fd->fd, EVIOCGNAME(sizeof(e->deviceName)), e->deviceName);
163 if (len <= 0)
164 {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600165 LOGE("Unable to query event object.\n");
Dees_Troy51a0e822012-09-05 15:24:24 -0400166 return -1;
167 }
168#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000169 printf("Event object: %s\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400170#endif
171
Flemmardf4674612014-01-10 09:14:44 +0100172#ifdef WHITELIST_INPUT
173 if (strcmp(e->deviceName, EXPAND(WHITELIST_INPUT)) != 0)
174 {
175 e->ignored = 1;
176 }
177#else
Ethan Yonker5742a402014-08-12 14:52:49 -0500178#ifndef TW_INPUT_BLACKLIST
Ethan Yonker64dbd0d2016-08-10 12:30:10 -0500179 // Blacklist these "input" devices, use TW_INPUT_BLACKLIST := "accelerometer\x0atest1\x0atest2" using the \x0a as a separator between input devices
Ethan Yonker3c4ac3b2014-08-14 11:15:32 -0500180 if (strcmp(e->deviceName, "bma250") == 0 || strcmp(e->deviceName, "bma150") == 0)
Dees_Troy51a0e822012-09-05 15:24:24 -0400181 {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600182 LOGI("Blacklisting input device: %s\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400183 e->ignored = 1;
184 }
Ethan Yonker5742a402014-08-12 14:52:49 -0500185#else
186 char* bl = strdup(EXPAND(TW_INPUT_BLACKLIST));
187 char* blacklist = strtok(bl, "\n");
188
189 while (blacklist != NULL) {
190 if (strcmp(e->deviceName, blacklist) == 0) {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600191 LOGI("Blacklisting input device: %s\n", blacklist);
Ethan Yonker5742a402014-08-12 14:52:49 -0500192 e->ignored = 1;
193 }
194 blacklist = strtok(NULL, "\n");
195 }
196 free(bl);
197#endif
Flemmardf4674612014-01-10 09:14:44 +0100198#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400199
200 strcat(vk_path, e->deviceName);
201
202 // Some devices split the keys from the touchscreen
203 e->vk_count = 0;
204 vk_fd = open(vk_path, O_RDONLY);
205 if (vk_fd >= 0)
206 {
207 len = read(vk_fd, vks, sizeof(vks)-1);
208 close(vk_fd);
209 if (len <= 0)
210 return -1;
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500211
Dees_Troy51a0e822012-09-05 15:24:24 -0400212 vks[len] = '\0';
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500213
Dees_Troy51a0e822012-09-05 15:24:24 -0400214 /* Parse a line like:
215 keytype:keycode:centerx:centery:width:height:keytype2:keycode2:centerx2:...
216 */
217 for (ts = vks, e->vk_count = 1; *ts; ++ts) {
218 if (*ts == ':')
219 ++e->vk_count;
220 }
221
222 if (e->vk_count % 6) {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600223 LOGI("minui: %s is %d %% 6\n", vk_path, e->vk_count % 6);
Dees_Troy51a0e822012-09-05 15:24:24 -0400224 }
225 e->vk_count /= 6;
226 if (e->vk_count <= 0)
227 return -1;
228
229 e->down = DOWN_NOT;
230 }
231
232 ioctl(e->fd->fd, EVIOCGABS(ABS_X), &e->p.xi);
233 ioctl(e->fd->fd, EVIOCGABS(ABS_Y), &e->p.yi);
234 e->p.synced = 0;
235#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000236 printf("EV: ST minX: %d maxX: %d minY: %d maxY: %d\n", e->p.xi.minimum, e->p.xi.maximum, e->p.yi.minimum, e->p.yi.maximum);
Dees_Troy51a0e822012-09-05 15:24:24 -0400237#endif
238
239 ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_X), &e->mt_p.xi);
240 ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_Y), &e->mt_p.yi);
241 e->mt_p.synced = 0;
242#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000243 printf("EV: MT minX: %d maxX: %d minY: %d maxY: %d\n", e->mt_p.xi.minimum, e->mt_p.xi.maximum, e->mt_p.yi.minimum, e->mt_p.yi.maximum);
Dees_Troy51a0e822012-09-05 15:24:24 -0400244#endif
245
Ethan Yonkerfbb43532015-12-28 21:54:50 +0100246 e->vks = (virtualkey *)malloc(sizeof(*e->vks) * e->vk_count);
Dees_Troy51a0e822012-09-05 15:24:24 -0400247
248 for (i = 0; i < e->vk_count; ++i) {
249 char *token[6];
250 int j;
251
252 for (j = 0; j < 6; ++j) {
253 token[j] = vk_strtok_r((i||j)?NULL:vks, ":", &ts);
254 }
255
256 if (strcmp(token[0], "0x01") != 0) {
257 /* Java does string compare, so we do too. */
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600258 LOGI("minui: %s: ignoring unknown virtual key type %s\n", vk_path, token[0]);
Dees_Troy51a0e822012-09-05 15:24:24 -0400259 continue;
260 }
261
262 e->vks[i].scancode = strtol(token[1], NULL, 0);
263 e->vks[i].centerx = strtol(token[2], NULL, 0);
264 e->vks[i].centery = strtol(token[3], NULL, 0);
265 e->vks[i].width = strtol(token[4], NULL, 0);
266 e->vks[i].height = strtol(token[5], NULL, 0);
267 }
268
269 return 0;
270}
271
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100272#define BITS_PER_LONG (sizeof(long) * 8)
273#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
274#define OFF(x) ((x)%BITS_PER_LONG)
275#define LONG(x) ((x)/BITS_PER_LONG)
276#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
Vojtech Bocek971d3182014-02-20 21:43:28 +0100277
278// Check for EV_REL (REL_X and REL_Y) and, because touchscreens can have those too,
279// check also for EV_KEY (BTN_LEFT and BTN_RIGHT)
Ethan Yonker64dbd0d2016-08-10 12:30:10 -0500280static void check_mouse(int fd, const char* deviceName)
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100281{
282 if(has_mouse)
283 return;
284
285 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
286 memset(bit, 0, sizeof(bit));
287 ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
288
Vojtech Bocek971d3182014-02-20 21:43:28 +0100289 if(!test_bit(EV_REL, bit[0]) || !test_bit(EV_KEY, bit[0]))
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100290 return;
291
292 ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
Vojtech Bocek971d3182014-02-20 21:43:28 +0100293 if(!test_bit(REL_X, bit[EV_REL]) || !test_bit(REL_Y, bit[EV_REL]))
294 return;
295
296 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
297 if(!test_bit(BTN_LEFT, bit[EV_KEY]) || !test_bit(BTN_RIGHT, bit[EV_KEY]))
298 return;
299
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600300 LOGI("Found mouse '%s'\n", deviceName);
Vojtech Bocek971d3182014-02-20 21:43:28 +0100301 has_mouse = 1;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100302}
303
304int ev_has_mouse(void)
305{
306 return has_mouse;
307}
308
Dees_Troy51a0e822012-09-05 15:24:24 -0400309int ev_init(void)
310{
311 DIR *dir;
312 struct dirent *de;
313 int fd;
314
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100315 has_mouse = 0;
316
Dees_Troy51a0e822012-09-05 15:24:24 -0400317 dir = opendir("/dev/input");
318 if(dir != 0) {
319 while((de = readdir(dir))) {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600320#ifdef _EVENT_LOGGING
321 fprintf(stderr,"/dev/input/%s\n", de->d_name);
322#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400323 if(strncmp(de->d_name,"event",5)) continue;
324 fd = openat(dirfd(dir), de->d_name, O_RDONLY);
325 if(fd < 0) continue;
326
327 ev_fds[ev_count].fd = fd;
328 ev_fds[ev_count].events = POLLIN;
329 evs[ev_count].fd = &ev_fds[ev_count];
330
331 /* Load virtualkeys if there are any */
Ethan Yonker64dbd0d2016-08-10 12:30:10 -0500332 vk_init(&evs[ev_count]);
Dees_Troy51a0e822012-09-05 15:24:24 -0400333
Ethan Yonker64dbd0d2016-08-10 12:30:10 -0500334 if (!evs[ev_count].ignored)
335 check_mouse(fd, evs[ev_count].deviceName);
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100336
Dees_Troy51a0e822012-09-05 15:24:24 -0400337 ev_count++;
338 if(ev_count == MAX_DEVICES) break;
339 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100340 closedir(dir);
Dees_Troy51a0e822012-09-05 15:24:24 -0400341 }
342
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100343 struct stat st;
344 if(stat("/dev/input", &st) >= 0)
345 lastInputMTime = st.st_mtime;
346 gettimeofday(&lastInputStat, NULL);
347
Dees_Troy51a0e822012-09-05 15:24:24 -0400348 return 0;
349}
350
351void ev_exit(void)
352{
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100353 while (ev_count-- > 0) {
354 if (evs[ev_count].vk_count) {
355 free(evs[ev_count].vks);
356 evs[ev_count].vk_count = 0;
357 }
358 close(ev_fds[ev_count].fd);
Dees_Troy51a0e822012-09-05 15:24:24 -0400359 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100360 ev_count = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400361}
362
Ethan Yonker58f21322018-08-24 11:17:36 -0500363/*static int vk_inside_display(__s32 value, struct input_absinfo *info, int screen_size)
Dees_Troy51a0e822012-09-05 15:24:24 -0400364{
365 int screen_pos;
366
367 if (info->minimum == info->maximum)
368 return 0;
369
370 screen_pos = (value - info->minimum) * (screen_size - 1) / (info->maximum - info->minimum);
371 return (screen_pos >= 0 && screen_pos < screen_size);
Ethan Yonker58f21322018-08-24 11:17:36 -0500372}*/
Dees_Troy51a0e822012-09-05 15:24:24 -0400373
Dees_Troyb7ecc092013-08-24 12:15:41 +0000374static int vk_tp_to_screen(struct position *p, int *x, int *y)
Dees_Troy51a0e822012-09-05 15:24:24 -0400375{
376 if (p->xi.minimum == p->xi.maximum || p->yi.minimum == p->yi.maximum)
377 {
378 // In this case, we assume the screen dimensions are the same.
379 *x = p->x;
380 *y = p->y;
381 return 0;
382 }
383
Dees_Troyb7ecc092013-08-24 12:15:41 +0000384#ifdef _EVENT_LOGGING
385 printf("EV: p->x=%d x-range=%d,%d fb-width=%d\n", p->x, p->xi.minimum, p->xi.maximum, gr_fb_width());
386#endif
387
Dees_Troy51a0e822012-09-05 15:24:24 -0400388#ifndef RECOVERY_TOUCHSCREEN_SWAP_XY
Dees_Troyb7ecc092013-08-24 12:15:41 +0000389 int fb_width = gr_fb_width();
390 int fb_height = gr_fb_height();
Dees_Troy51a0e822012-09-05 15:24:24 -0400391#else
392 // We need to swap the scaling sizes, too
Dees_Troyb7ecc092013-08-24 12:15:41 +0000393 int fb_width = gr_fb_height();
394 int fb_height = gr_fb_width();
Dees_Troy51a0e822012-09-05 15:24:24 -0400395#endif
396
397 *x = (p->x - p->xi.minimum) * (fb_width - 1) / (p->xi.maximum - p->xi.minimum);
398 *y = (p->y - p->yi.minimum) * (fb_height - 1) / (p->yi.maximum - p->yi.minimum);
399
400 if (*x >= 0 && *x < fb_width &&
401 *y >= 0 && *y < fb_height)
402 {
403 return 0;
404 }
405
406 return 1;
407}
408
409/* Translate a virtual key in to a real key event, if needed */
410/* Returns non-zero when the event should be consumed */
Dees_Troyb7ecc092013-08-24 12:15:41 +0000411static int vk_modify(struct ev *e, struct input_event *ev)
Dees_Troy51a0e822012-09-05 15:24:24 -0400412{
413 static int downX = -1, downY = -1;
414 static int discard = 0;
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100415 static int last_virt_key = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400416 static int lastWasSynReport = 0;
417 static int touchReleaseOnNextSynReport = 0;
Dees_Troyd86400b2013-05-13 19:04:35 +0000418 static int use_tracking_id_negative_as_touch_release = 0; // On some devices, type: 3 code: 39 value: -1, aka EV_ABS ABS_MT_TRACKING_ID -1 indicates a true touch release
Dees_Troy51a0e822012-09-05 15:24:24 -0400419 int i;
420 int x, y;
421
422 // This is used to ditch useless event handlers, like an accelerometer
423 if (e->ignored) return 1;
424
425 if (ev->type == EV_REL && ev->code == REL_Z)
426 {
427 // This appears to be an accelerometer or another strange input device. It's not the touchscreen.
428#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000429 printf("EV: Device disabled due to non-touchscreen messages.\n");
Dees_Troy51a0e822012-09-05 15:24:24 -0400430#endif
431 e->ignored = 1;
432 return 1;
433 }
434
435#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000436 printf("EV: %s => type: %x code: %x value: %d\n", e->deviceName, ev->type, ev->code, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400437#endif
438
439 // Handle keyboard events, value of 1 indicates key down, 0 indicates key up
440 if (ev->type == EV_KEY) {
441 return 0;
442 }
443
444 if (ev->type == EV_ABS) {
445 switch (ev->code) {
446
447 case ABS_X: //00
448 e->p.synced |= 0x01;
449 e->p.x = ev->value;
450#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000451 printf("EV: %s => EV_ABS ABS_X %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400452#endif
453 break;
454
455 case ABS_Y: //01
456 e->p.synced |= 0x02;
457 e->p.y = ev->value;
458#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000459 printf("EV: %s => EV_ABS ABS_Y %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400460#endif
461 break;
462
463 case ABS_MT_POSITION: //2a
464 e->mt_p.synced = 0x03;
465 if (ev->value == (1 << 31))
466 {
Ethan Yonker32f68a32014-12-29 08:13:23 -0600467#ifndef TW_IGNORE_MT_POSITION_0
Dees_Troy51a0e822012-09-05 15:24:24 -0400468 e->mt_p.x = 0;
469 e->mt_p.y = 0;
470 lastWasSynReport = 1;
Ethan Yonker32f68a32014-12-29 08:13:23 -0600471#endif
472#ifdef _EVENT_LOGGING
473#ifndef TW_IGNORE_MT_POSITION_0
474 printf("EV: %s => EV_ABS ABS_MT_POSITION %d, set x and y to 0 and lastWasSynReport to 1\n", e->deviceName, ev->value);
475#else
476 printf("Ignoring ABS_MT_POSITION 0\n", e->deviceName, ev->value);
477#endif
478#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400479 }
480 else
481 {
482 lastWasSynReport = 0;
483 e->mt_p.x = (ev->value & 0x7FFF0000) >> 16;
484 e->mt_p.y = (ev->value & 0xFFFF);
Ethan Yonker32f68a32014-12-29 08:13:23 -0600485#ifdef _EVENT_LOGGING
486 printf("EV: %s => EV_ABS ABS_MT_POSITION %d, set x: %d and y: %d and lastWasSynReport to 0\n", e->deviceName, ev->value, (ev->value & 0x7FFF0000) >> 16, (ev->value & 0xFFFF));
487#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400488 }
489 break;
490
491 case ABS_MT_TOUCH_MAJOR: //30
492 if (ev->value == 0)
493 {
Ibrahim Awwal2e9cb012014-01-04 12:38:26 -0800494#ifndef TW_IGNORE_MAJOR_AXIS_0
Dees_Troy51a0e822012-09-05 15:24:24 -0400495 // We're in a touch release, although some devices will still send positions as well
496 e->mt_p.x = 0;
497 e->mt_p.y = 0;
498 touchReleaseOnNextSynReport = 1;
Ibrahim Awwal2e9cb012014-01-04 12:38:26 -0800499#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400500 }
501#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000502 printf("EV: %s => EV_ABS ABS_MT_TOUCH_MAJOR %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400503#endif
504 break;
505
506 case ABS_MT_PRESSURE: //3a
507 if (ev->value == 0)
508 {
509 // We're in a touch release, although some devices will still send positions as well
510 e->mt_p.x = 0;
511 e->mt_p.y = 0;
512 touchReleaseOnNextSynReport = 1;
513 }
514#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000515 printf("EV: %s => EV_ABS ABS_MT_PRESSURE %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400516#endif
517 break;
518
519 case ABS_MT_POSITION_X: //35
520 e->mt_p.synced |= 0x01;
521 e->mt_p.x = ev->value;
522#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000523 printf("EV: %s => EV_ABS ABS_MT_POSITION_X %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400524#endif
525 break;
526
527 case ABS_MT_POSITION_Y: //36
528 e->mt_p.synced |= 0x02;
529 e->mt_p.y = ev->value;
530#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000531 printf("EV: %s => EV_ABS ABS_MT_POSITION_Y %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400532#endif
533 break;
534
Dees_Troy51a0e822012-09-05 15:24:24 -0400535 case ABS_MT_TOUCH_MINOR: //31
Dees_Troyd86400b2013-05-13 19:04:35 +0000536#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000537 printf("EV: %s => EV_ABS ABS_MT_TOUCH_MINOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000538#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400539 break;
540
541 case ABS_MT_WIDTH_MAJOR: //32
Dees_Troyd86400b2013-05-13 19:04:35 +0000542#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000543 printf("EV: %s => EV_ABS ABS_MT_WIDTH_MAJOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000544#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400545 break;
546
547 case ABS_MT_WIDTH_MINOR: //33
Dees_Troyd86400b2013-05-13 19:04:35 +0000548#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000549 printf("EV: %s => EV_ABS ABS_MT_WIDTH_MINOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000550#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400551 break;
552
Dees_Troyd86400b2013-05-13 19:04:35 +0000553 case ABS_MT_TRACKING_ID: //39
Ethan Yonkerd6821a12015-08-26 15:29:23 -0500554#ifdef TW_IGNORE_ABS_MT_TRACKING_ID
555#ifdef _EVENT_LOGGING
556 printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d ignored\n", e->deviceName, ev->value);
557#endif
558 return 1;
559#endif
Dees_Troyd86400b2013-05-13 19:04:35 +0000560 if (ev->value < 0) {
561 e->mt_p.x = 0;
562 e->mt_p.y = 0;
563 touchReleaseOnNextSynReport = 2;
564 use_tracking_id_negative_as_touch_release = 1;
565#ifdef _EVENT_LOGGING
566 if (use_tracking_id_negative_as_touch_release)
567 printf("using ABS_MT_TRACKING_ID value -1 to indicate touch releases\n");
568#endif
569 }
570#ifdef _EVENT_LOGGING
571 printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d\n", e->deviceName, ev->value);
572#endif
573 break;
574
575#ifdef _EVENT_LOGGING
576 // These are for touch logging purposes only
Dees_Troy51a0e822012-09-05 15:24:24 -0400577 case ABS_MT_ORIENTATION: //34
Dees_Troy2673cec2013-04-02 20:22:16 +0000578 printf("EV: %s => EV_ABS ABS_MT_ORIENTATION %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400579 return 1;
580 break;
581
582 case ABS_MT_TOOL_TYPE: //37
583 LOGI("EV: %s => EV_ABS ABS_MT_TOOL_TYPE %d\n", e->deviceName, ev->value);
584 return 1;
585 break;
586
587 case ABS_MT_BLOB_ID: //38
Dees_Troy2673cec2013-04-02 20:22:16 +0000588 printf("EV: %s => EV_ABS ABS_MT_BLOB_ID %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400589 return 1;
590 break;
591
Dees_Troy51a0e822012-09-05 15:24:24 -0400592 case ABS_MT_DISTANCE: //3b
Dees_Troy2673cec2013-04-02 20:22:16 +0000593 printf("EV: %s => EV_ABS ABS_MT_DISTANCE %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400594 return 1;
595 break;
Ethan Yonkerd6821a12015-08-26 15:29:23 -0500596 case ABS_MT_SLOT:
597 printf("EV: %s => ABS_MT_SLOT %d\n", e->deviceName, ev->value);
598 return 1;
599 break;
Dees_Troy51a0e822012-09-05 15:24:24 -0400600#endif
601
602 default:
603 // This is an unhandled message, just skip it
604 return 1;
605 }
606
607 if (ev->code != ABS_MT_POSITION)
608 {
609 lastWasSynReport = 0;
610 return 1;
611 }
612 }
613
614 // Check if we should ignore the message
615 if (ev->code != ABS_MT_POSITION && (ev->type != EV_SYN || (ev->code != SYN_REPORT && ev->code != SYN_MT_REPORT)))
616 {
617 lastWasSynReport = 0;
618 return 0;
619 }
620
621#ifdef _EVENT_LOGGING
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600622 if (ev->type == EV_SYN && ev->code == SYN_REPORT)
623 printf("EV: %s => EV_SYN SYN_REPORT\n", e->deviceName);
624 if (ev->type == EV_SYN && ev->code == SYN_MT_REPORT)
625 printf("EV: %s => EV_SYN SYN_MT_REPORT\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400626#endif
627
628 // Discard the MT versions
629 if (ev->code == SYN_MT_REPORT) return 0;
630
Dees_Troyd86400b2013-05-13 19:04:35 +0000631 if (((lastWasSynReport == 1 || touchReleaseOnNextSynReport == 1) && !use_tracking_id_negative_as_touch_release) || (use_tracking_id_negative_as_touch_release && touchReleaseOnNextSynReport == 2))
Dees_Troy51a0e822012-09-05 15:24:24 -0400632 {
633 // Reset the value
634 touchReleaseOnNextSynReport = 0;
635
636 // We are a finger-up state
637 if (!discard)
638 {
639 // Report the key up
640 ev->type = EV_ABS;
641 ev->code = 0;
642 ev->value = (downX << 16) | downY;
643 }
644 downX = -1;
645 downY = -1;
646 if (discard)
647 {
648 discard = 0;
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100649
650 // Send the keyUp event
651 ev->type = EV_KEY;
652 ev->code = last_virt_key;
653 ev->value = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400654 }
655 return 0;
656 }
657 lastWasSynReport = 1;
658
659 // Retrieve where the x,y position is
660 if (e->p.synced & 0x03)
661 {
Dees_Troyb7ecc092013-08-24 12:15:41 +0000662 vk_tp_to_screen(&e->p, &x, &y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400663 }
664 else if (e->mt_p.synced & 0x03)
665 {
Dees_Troyb7ecc092013-08-24 12:15:41 +0000666 vk_tp_to_screen(&e->mt_p, &x, &y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400667 }
668 else
669 {
670 // We don't have useful information to convey
671 return 1;
672 }
673
674#ifdef RECOVERY_TOUCHSCREEN_SWAP_XY
675 x ^= y;
676 y ^= x;
677 x ^= y;
678#endif
679#ifdef RECOVERY_TOUCHSCREEN_FLIP_X
Dees_Troyb7ecc092013-08-24 12:15:41 +0000680 x = gr_fb_width() - x;
Dees_Troy51a0e822012-09-05 15:24:24 -0400681#endif
682#ifdef RECOVERY_TOUCHSCREEN_FLIP_Y
Dees_Troyb7ecc092013-08-24 12:15:41 +0000683 y = gr_fb_height() - y;
Dees_Troy51a0e822012-09-05 15:24:24 -0400684#endif
685
686#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000687 printf("EV: x: %d y: %d\n", x, y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400688#endif
689
690 // Clear the current sync states
691 e->p.synced = e->mt_p.synced = 0;
692
693 // If we have nothing useful to report, skip it
694 if (x == -1 || y == -1) return 1;
695
Ethan Yonker96bc6dd2015-03-18 11:44:34 -0500696 // Special case, we'll ignore touches on 0,0 because it usually means
697 // that we received extra data after our last sync and x and y were
698 // reset to 0. We should not be using 0,0 anyway.
699 if (x == 0 && y == 0)
700 return 1;
701
Dees_Troy51a0e822012-09-05 15:24:24 -0400702 // On first touch, see if we're at a virtual key
703 if (downX == -1)
704 {
705 // Attempt mapping to virtual key
706 for (i = 0; i < e->vk_count; ++i)
707 {
708 int xd = ABS(e->vks[i].centerx - x);
709 int yd = ABS(e->vks[i].centery - y);
710
711 if (xd < e->vks[i].width/2 && yd < e->vks[i].height/2)
712 {
713 ev->type = EV_KEY;
714 ev->code = e->vks[i].scancode;
715 ev->value = 1;
716
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100717 last_virt_key = e->vks[i].scancode;
718
Dees_Troy51a0e822012-09-05 15:24:24 -0400719 vibrate(VIBRATOR_TIME_MS);
720
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500721 // Mark that all further movement until lift is discard,
Dees_Troy51a0e822012-09-05 15:24:24 -0400722 // and make sure we don't come back into this area
723 discard = 1;
724 downX = 0;
725 return 0;
726 }
727 }
728 }
729
730 // If we were originally a button press, discard this event
731 if (discard)
732 {
733 return 1;
734 }
735
736 // Record where we started the touch for deciding if this is a key or a scroll
737 downX = x;
738 downY = y;
739
740 ev->type = EV_ABS;
741 ev->code = 1;
742 ev->value = (x << 16) | y;
743 return 0;
744}
745
thatde72b6d2015-02-08 08:55:00 +0100746int ev_get(struct input_event *ev, int timeout_ms)
Dees_Troy51a0e822012-09-05 15:24:24 -0400747{
748 int r;
749 unsigned n;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100750 struct timeval curr;
Dees_Troy51a0e822012-09-05 15:24:24 -0400751
Ethan Yonkere13fa632015-01-27 11:30:03 -0600752 gettimeofday(&curr, NULL);
753 if(curr.tv_sec - lastInputStat.tv_sec >= 2)
754 {
755 struct stat st;
756 stat("/dev/input", &st);
757 if (st.st_mtime > lastInputMTime)
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100758 {
Matt Mower9b4d8dd2017-02-13 16:10:38 -0600759 LOGI("Reloading input devices\n");
Ethan Yonkere13fa632015-01-27 11:30:03 -0600760 ev_exit();
761 ev_init();
762 lastInputMTime = st.st_mtime;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100763 }
Ethan Yonkere13fa632015-01-27 11:30:03 -0600764 lastInputStat = curr;
765 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100766
thatde72b6d2015-02-08 08:55:00 +0100767 r = poll(ev_fds, ev_count, timeout_ms);
Dees_Troy51a0e822012-09-05 15:24:24 -0400768
Ethan Yonkere13fa632015-01-27 11:30:03 -0600769 if(r > 0) {
770 for(n = 0; n < ev_count; n++) {
771 if(ev_fds[n].revents & POLLIN) {
772 r = read(ev_fds[n].fd, ev, sizeof(*ev));
773 if(r == sizeof(*ev)) {
774 if (!vk_modify(&evs[n], ev))
775 return 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400776 }
777 }
778 }
thatc5837f32015-02-01 01:59:43 +0100779 return -1;
Ethan Yonkere13fa632015-01-27 11:30:03 -0600780 }
Dees_Troy51a0e822012-09-05 15:24:24 -0400781
thatc5837f32015-02-01 01:59:43 +0100782 return -2;
Dees_Troy51a0e822012-09-05 15:24:24 -0400783}
784
Ethan Yonker58f21322018-08-24 11:17:36 -0500785int ev_wait(int timeout __unused)
Dees_Troy51a0e822012-09-05 15:24:24 -0400786{
787 return -1;
788}
789
790void ev_dispatch(void)
791{
792 return;
793}
794
Ethan Yonker58f21322018-08-24 11:17:36 -0500795int ev_get_input(int fd __unused, short revents __unused, struct input_event *ev __unused)
Dees_Troy51a0e822012-09-05 15:24:24 -0400796{
797 return -1;
798}