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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>
27
Dees_Troy51a0e822012-09-05 15:24:24 -040028
29#include "../common.h"
30
31#include "minui.h"
32
33//#define _EVENT_LOGGING
34
Dees_Troy3f23d9e2013-05-03 21:04:05 +000035#define MAX_DEVICES 32
Dees_Troy51a0e822012-09-05 15:24:24 -040036
37#define VIBRATOR_TIMEOUT_FILE "/sys/class/timed_output/vibrator/enable"
38#define VIBRATOR_TIME_MS 50
39
Dees_Troyf7596752012-09-28 13:21:36 -040040#ifndef SYN_REPORT
Dees_Troy51a0e822012-09-05 15:24:24 -040041#define SYN_REPORT 0x00
Dees_Troyf7596752012-09-28 13:21:36 -040042#endif
43#ifndef SYN_CONFIG
Dees_Troy51a0e822012-09-05 15:24:24 -040044#define SYN_CONFIG 0x01
Dees_Troyf7596752012-09-28 13:21:36 -040045#endif
46#ifndef SYN_MT_REPORT
Dees_Troy51a0e822012-09-05 15:24:24 -040047#define SYN_MT_REPORT 0x02
Dees_Troyf7596752012-09-28 13:21:36 -040048#endif
Dees_Troy51a0e822012-09-05 15:24:24 -040049
50#define ABS_MT_POSITION 0x2a /* Group a set of X and Y */
51#define ABS_MT_AMPLITUDE 0x2b /* Group a set of Z and W */
52#define ABS_MT_SLOT 0x2f
53#define ABS_MT_TOUCH_MAJOR 0x30
54#define ABS_MT_TOUCH_MINOR 0x31
55#define ABS_MT_WIDTH_MAJOR 0x32
56#define ABS_MT_WIDTH_MINOR 0x33
57#define ABS_MT_ORIENTATION 0x34
58#define ABS_MT_POSITION_X 0x35
59#define ABS_MT_POSITION_Y 0x36
60#define ABS_MT_TOOL_TYPE 0x37
61#define ABS_MT_BLOB_ID 0x38
62#define ABS_MT_TRACKING_ID 0x39
63#define ABS_MT_PRESSURE 0x3a
64#define ABS_MT_DISTANCE 0x3b
65
66enum {
67 DOWN_NOT,
68 DOWN_SENT,
69 DOWN_RELEASED,
70};
71
72struct virtualkey {
73 int scancode;
74 int centerx, centery;
75 int width, height;
76};
77
78struct position {
79 int x, y;
80 int synced;
81 struct input_absinfo xi, yi;
82};
83
84struct ev {
85 struct pollfd *fd;
86
87 struct virtualkey *vks;
88 int vk_count;
89
90 char deviceName[64];
91
92 int ignored;
93
94 struct position p, mt_p;
95 int down;
96};
97
98static struct pollfd ev_fds[MAX_DEVICES];
99static struct ev evs[MAX_DEVICES];
100static unsigned ev_count = 0;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100101static struct timeval lastInputStat;
102static unsigned long lastInputMTime;
103static int has_mouse = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400104
105static inline int ABS(int x) {
106 return x<0?-x:x;
107}
108
109int vibrate(int timeout_ms)
110{
111 char str[20];
112 int fd;
113 int ret;
114
Samer Diab (S.a.M.e.R_d)71e9b042014-01-07 20:18:47 +0000115 if (timeout_ms > 10000) timeout_ms = 1000;
116
Dees_Troy51a0e822012-09-05 15:24:24 -0400117 fd = open(VIBRATOR_TIMEOUT_FILE, O_WRONLY);
118 if (fd < 0)
119 return -1;
120
121 ret = snprintf(str, sizeof(str), "%d", timeout_ms);
122 ret = write(fd, str, ret);
123 close(fd);
124
125 if (ret < 0)
126 return -1;
127
128 return 0;
129}
130
131/* Returns empty tokens */
132static char *vk_strtok_r(char *str, const char *delim, char **save_str)
133{
134 if(!str)
135 {
136 if(!*save_str)
137 return NULL;
138
139 str = (*save_str) + 1;
140 }
141 *save_str = strpbrk(str, delim);
142
143 if (*save_str)
144 **save_str = '\0';
145
146 return str;
147}
148
149static int vk_init(struct ev *e)
150{
151 char vk_path[PATH_MAX] = "/sys/board_properties/virtualkeys.";
152 char vks[2048], *ts = NULL;
153 ssize_t len;
154 int vk_fd;
155 int i;
156
157 e->vk_count = 0;
158
159 len = strlen(vk_path);
160 len = ioctl(e->fd->fd, EVIOCGNAME(sizeof(e->deviceName)), e->deviceName);
161 if (len <= 0)
162 {
Dees_Troy2673cec2013-04-02 20:22:16 +0000163 printf("Unable to query event object.\n");
Dees_Troy51a0e822012-09-05 15:24:24 -0400164 return -1;
165 }
166#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000167 printf("Event object: %s\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400168#endif
169
Flemmardf4674612014-01-10 09:14:44 +0100170#ifdef WHITELIST_INPUT
171 if (strcmp(e->deviceName, EXPAND(WHITELIST_INPUT)) != 0)
172 {
173 e->ignored = 1;
174 }
175#else
Ethan Yonker5742a402014-08-12 14:52:49 -0500176#ifndef TW_INPUT_BLACKLIST
Dees_Troy51a0e822012-09-05 15:24:24 -0400177 // Blacklist these "input" devices
Ethan Yonker3c4ac3b2014-08-14 11:15:32 -0500178 if (strcmp(e->deviceName, "bma250") == 0 || strcmp(e->deviceName, "bma150") == 0)
Dees_Troy51a0e822012-09-05 15:24:24 -0400179 {
Ethan Yonker5742a402014-08-12 14:52:49 -0500180 printf("blacklisting %s input device\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400181 e->ignored = 1;
182 }
Ethan Yonker5742a402014-08-12 14:52:49 -0500183#else
184 char* bl = strdup(EXPAND(TW_INPUT_BLACKLIST));
185 char* blacklist = strtok(bl, "\n");
186
187 while (blacklist != NULL) {
188 if (strcmp(e->deviceName, blacklist) == 0) {
189 printf("blacklisting %s input device\n", blacklist);
190 e->ignored = 1;
191 }
192 blacklist = strtok(NULL, "\n");
193 }
194 free(bl);
195#endif
Flemmardf4674612014-01-10 09:14:44 +0100196#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400197
198 strcat(vk_path, e->deviceName);
199
200 // Some devices split the keys from the touchscreen
201 e->vk_count = 0;
202 vk_fd = open(vk_path, O_RDONLY);
203 if (vk_fd >= 0)
204 {
205 len = read(vk_fd, vks, sizeof(vks)-1);
206 close(vk_fd);
207 if (len <= 0)
208 return -1;
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500209
Dees_Troy51a0e822012-09-05 15:24:24 -0400210 vks[len] = '\0';
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500211
Dees_Troy51a0e822012-09-05 15:24:24 -0400212 /* Parse a line like:
213 keytype:keycode:centerx:centery:width:height:keytype2:keycode2:centerx2:...
214 */
215 for (ts = vks, e->vk_count = 1; *ts; ++ts) {
216 if (*ts == ':')
217 ++e->vk_count;
218 }
219
220 if (e->vk_count % 6) {
Dees_Troy2673cec2013-04-02 20:22:16 +0000221 printf("minui: %s is %d %% 6\n", vk_path, e->vk_count % 6);
Dees_Troy51a0e822012-09-05 15:24:24 -0400222 }
223 e->vk_count /= 6;
224 if (e->vk_count <= 0)
225 return -1;
226
227 e->down = DOWN_NOT;
228 }
229
230 ioctl(e->fd->fd, EVIOCGABS(ABS_X), &e->p.xi);
231 ioctl(e->fd->fd, EVIOCGABS(ABS_Y), &e->p.yi);
232 e->p.synced = 0;
233#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000234 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 -0400235#endif
236
237 ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_X), &e->mt_p.xi);
238 ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_Y), &e->mt_p.yi);
239 e->mt_p.synced = 0;
240#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000241 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 -0400242#endif
243
244 e->vks = malloc(sizeof(*e->vks) * e->vk_count);
245
246 for (i = 0; i < e->vk_count; ++i) {
247 char *token[6];
248 int j;
249
250 for (j = 0; j < 6; ++j) {
251 token[j] = vk_strtok_r((i||j)?NULL:vks, ":", &ts);
252 }
253
254 if (strcmp(token[0], "0x01") != 0) {
255 /* Java does string compare, so we do too. */
Dees_Troy2673cec2013-04-02 20:22:16 +0000256 printf("minui: %s: ignoring unknown virtual key type %s\n", vk_path, token[0]);
Dees_Troy51a0e822012-09-05 15:24:24 -0400257 continue;
258 }
259
260 e->vks[i].scancode = strtol(token[1], NULL, 0);
261 e->vks[i].centerx = strtol(token[2], NULL, 0);
262 e->vks[i].centery = strtol(token[3], NULL, 0);
263 e->vks[i].width = strtol(token[4], NULL, 0);
264 e->vks[i].height = strtol(token[5], NULL, 0);
265 }
266
267 return 0;
268}
269
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100270#define BITS_PER_LONG (sizeof(long) * 8)
271#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
272#define OFF(x) ((x)%BITS_PER_LONG)
273#define LONG(x) ((x)/BITS_PER_LONG)
274#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
Vojtech Bocek971d3182014-02-20 21:43:28 +0100275
276// Check for EV_REL (REL_X and REL_Y) and, because touchscreens can have those too,
277// check also for EV_KEY (BTN_LEFT and BTN_RIGHT)
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100278static void check_mouse(int fd)
279{
280 if(has_mouse)
281 return;
282
283 unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
284 memset(bit, 0, sizeof(bit));
285 ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
286
Vojtech Bocek971d3182014-02-20 21:43:28 +0100287 if(!test_bit(EV_REL, bit[0]) || !test_bit(EV_KEY, bit[0]))
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100288 return;
289
290 ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
Vojtech Bocek971d3182014-02-20 21:43:28 +0100291 if(!test_bit(REL_X, bit[EV_REL]) || !test_bit(REL_Y, bit[EV_REL]))
292 return;
293
294 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
295 if(!test_bit(BTN_LEFT, bit[EV_KEY]) || !test_bit(BTN_RIGHT, bit[EV_KEY]))
296 return;
297
298 has_mouse = 1;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100299}
300
301int ev_has_mouse(void)
302{
303 return has_mouse;
304}
305
Dees_Troy51a0e822012-09-05 15:24:24 -0400306int ev_init(void)
307{
308 DIR *dir;
309 struct dirent *de;
310 int fd;
311
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100312 has_mouse = 0;
313
Dees_Troy51a0e822012-09-05 15:24:24 -0400314 dir = opendir("/dev/input");
315 if(dir != 0) {
316 while((de = readdir(dir))) {
317// fprintf(stderr,"/dev/input/%s\n", de->d_name);
318 if(strncmp(de->d_name,"event",5)) continue;
319 fd = openat(dirfd(dir), de->d_name, O_RDONLY);
320 if(fd < 0) continue;
321
322 ev_fds[ev_count].fd = fd;
323 ev_fds[ev_count].events = POLLIN;
324 evs[ev_count].fd = &ev_fds[ev_count];
325
326 /* Load virtualkeys if there are any */
327 vk_init(&evs[ev_count]);
328
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100329 check_mouse(fd);
330
Dees_Troy51a0e822012-09-05 15:24:24 -0400331 ev_count++;
332 if(ev_count == MAX_DEVICES) break;
333 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100334 closedir(dir);
Dees_Troy51a0e822012-09-05 15:24:24 -0400335 }
336
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100337 struct stat st;
338 if(stat("/dev/input", &st) >= 0)
339 lastInputMTime = st.st_mtime;
340 gettimeofday(&lastInputStat, NULL);
341
Dees_Troy51a0e822012-09-05 15:24:24 -0400342 return 0;
343}
344
345void ev_exit(void)
346{
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100347 while (ev_count-- > 0) {
348 if (evs[ev_count].vk_count) {
349 free(evs[ev_count].vks);
350 evs[ev_count].vk_count = 0;
351 }
352 close(ev_fds[ev_count].fd);
Dees_Troy51a0e822012-09-05 15:24:24 -0400353 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100354 ev_count = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400355}
356
357static int vk_inside_display(__s32 value, struct input_absinfo *info, int screen_size)
358{
359 int screen_pos;
360
361 if (info->minimum == info->maximum)
362 return 0;
363
364 screen_pos = (value - info->minimum) * (screen_size - 1) / (info->maximum - info->minimum);
365 return (screen_pos >= 0 && screen_pos < screen_size);
366}
367
Dees_Troyb7ecc092013-08-24 12:15:41 +0000368static int vk_tp_to_screen(struct position *p, int *x, int *y)
Dees_Troy51a0e822012-09-05 15:24:24 -0400369{
370 if (p->xi.minimum == p->xi.maximum || p->yi.minimum == p->yi.maximum)
371 {
372 // In this case, we assume the screen dimensions are the same.
373 *x = p->x;
374 *y = p->y;
375 return 0;
376 }
377
Dees_Troyb7ecc092013-08-24 12:15:41 +0000378#ifdef _EVENT_LOGGING
379 printf("EV: p->x=%d x-range=%d,%d fb-width=%d\n", p->x, p->xi.minimum, p->xi.maximum, gr_fb_width());
380#endif
381
Dees_Troy51a0e822012-09-05 15:24:24 -0400382#ifndef RECOVERY_TOUCHSCREEN_SWAP_XY
Dees_Troyb7ecc092013-08-24 12:15:41 +0000383 int fb_width = gr_fb_width();
384 int fb_height = gr_fb_height();
Dees_Troy51a0e822012-09-05 15:24:24 -0400385#else
386 // We need to swap the scaling sizes, too
Dees_Troyb7ecc092013-08-24 12:15:41 +0000387 int fb_width = gr_fb_height();
388 int fb_height = gr_fb_width();
Dees_Troy51a0e822012-09-05 15:24:24 -0400389#endif
390
391 *x = (p->x - p->xi.minimum) * (fb_width - 1) / (p->xi.maximum - p->xi.minimum);
392 *y = (p->y - p->yi.minimum) * (fb_height - 1) / (p->yi.maximum - p->yi.minimum);
393
394 if (*x >= 0 && *x < fb_width &&
395 *y >= 0 && *y < fb_height)
396 {
397 return 0;
398 }
399
400 return 1;
401}
402
403/* Translate a virtual key in to a real key event, if needed */
404/* Returns non-zero when the event should be consumed */
Dees_Troyb7ecc092013-08-24 12:15:41 +0000405static int vk_modify(struct ev *e, struct input_event *ev)
Dees_Troy51a0e822012-09-05 15:24:24 -0400406{
407 static int downX = -1, downY = -1;
408 static int discard = 0;
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100409 static int last_virt_key = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400410 static int lastWasSynReport = 0;
411 static int touchReleaseOnNextSynReport = 0;
Dees_Troyd86400b2013-05-13 19:04:35 +0000412 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 -0400413 int i;
414 int x, y;
415
416 // This is used to ditch useless event handlers, like an accelerometer
417 if (e->ignored) return 1;
418
419 if (ev->type == EV_REL && ev->code == REL_Z)
420 {
421 // This appears to be an accelerometer or another strange input device. It's not the touchscreen.
422#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000423 printf("EV: Device disabled due to non-touchscreen messages.\n");
Dees_Troy51a0e822012-09-05 15:24:24 -0400424#endif
425 e->ignored = 1;
426 return 1;
427 }
428
429#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000430 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 -0400431#endif
432
433 // Handle keyboard events, value of 1 indicates key down, 0 indicates key up
434 if (ev->type == EV_KEY) {
435 return 0;
436 }
437
438 if (ev->type == EV_ABS) {
439 switch (ev->code) {
440
441 case ABS_X: //00
442 e->p.synced |= 0x01;
443 e->p.x = ev->value;
444#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000445 printf("EV: %s => EV_ABS ABS_X %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400446#endif
447 break;
448
449 case ABS_Y: //01
450 e->p.synced |= 0x02;
451 e->p.y = ev->value;
452#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000453 printf("EV: %s => EV_ABS ABS_Y %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400454#endif
455 break;
456
457 case ABS_MT_POSITION: //2a
458 e->mt_p.synced = 0x03;
459 if (ev->value == (1 << 31))
460 {
461 e->mt_p.x = 0;
462 e->mt_p.y = 0;
463 lastWasSynReport = 1;
464 }
465 else
466 {
467 lastWasSynReport = 0;
468 e->mt_p.x = (ev->value & 0x7FFF0000) >> 16;
469 e->mt_p.y = (ev->value & 0xFFFF);
470 }
471 break;
472
473 case ABS_MT_TOUCH_MAJOR: //30
474 if (ev->value == 0)
475 {
Ibrahim Awwal2e9cb012014-01-04 12:38:26 -0800476#ifndef TW_IGNORE_MAJOR_AXIS_0
Dees_Troy51a0e822012-09-05 15:24:24 -0400477 // We're in a touch release, although some devices will still send positions as well
478 e->mt_p.x = 0;
479 e->mt_p.y = 0;
480 touchReleaseOnNextSynReport = 1;
Ibrahim Awwal2e9cb012014-01-04 12:38:26 -0800481#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400482 }
483#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000484 printf("EV: %s => EV_ABS ABS_MT_TOUCH_MAJOR %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400485#endif
486 break;
487
488 case ABS_MT_PRESSURE: //3a
489 if (ev->value == 0)
490 {
491 // We're in a touch release, although some devices will still send positions as well
492 e->mt_p.x = 0;
493 e->mt_p.y = 0;
494 touchReleaseOnNextSynReport = 1;
495 }
496#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000497 printf("EV: %s => EV_ABS ABS_MT_PRESSURE %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400498#endif
499 break;
500
501 case ABS_MT_POSITION_X: //35
502 e->mt_p.synced |= 0x01;
503 e->mt_p.x = ev->value;
504#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000505 printf("EV: %s => EV_ABS ABS_MT_POSITION_X %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400506#endif
507 break;
508
509 case ABS_MT_POSITION_Y: //36
510 e->mt_p.synced |= 0x02;
511 e->mt_p.y = ev->value;
512#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000513 printf("EV: %s => EV_ABS ABS_MT_POSITION_Y %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400514#endif
515 break;
516
Dees_Troy51a0e822012-09-05 15:24:24 -0400517 case ABS_MT_TOUCH_MINOR: //31
Dees_Troyd86400b2013-05-13 19:04:35 +0000518#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000519 printf("EV: %s => EV_ABS ABS_MT_TOUCH_MINOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000520#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400521 break;
522
523 case ABS_MT_WIDTH_MAJOR: //32
Dees_Troyd86400b2013-05-13 19:04:35 +0000524#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000525 printf("EV: %s => EV_ABS ABS_MT_WIDTH_MAJOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000526#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400527 break;
528
529 case ABS_MT_WIDTH_MINOR: //33
Dees_Troyd86400b2013-05-13 19:04:35 +0000530#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000531 printf("EV: %s => EV_ABS ABS_MT_WIDTH_MINOR %d\n", e->deviceName, ev->value);
Dees_Troyd86400b2013-05-13 19:04:35 +0000532#endif
Dees_Troy51a0e822012-09-05 15:24:24 -0400533 break;
534
Dees_Troyd86400b2013-05-13 19:04:35 +0000535 case ABS_MT_TRACKING_ID: //39
536 if (ev->value < 0) {
537 e->mt_p.x = 0;
538 e->mt_p.y = 0;
539 touchReleaseOnNextSynReport = 2;
540 use_tracking_id_negative_as_touch_release = 1;
541#ifdef _EVENT_LOGGING
542 if (use_tracking_id_negative_as_touch_release)
543 printf("using ABS_MT_TRACKING_ID value -1 to indicate touch releases\n");
544#endif
545 }
546#ifdef _EVENT_LOGGING
547 printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d\n", e->deviceName, ev->value);
548#endif
549 break;
550
551#ifdef _EVENT_LOGGING
552 // These are for touch logging purposes only
Dees_Troy51a0e822012-09-05 15:24:24 -0400553 case ABS_MT_ORIENTATION: //34
Dees_Troy2673cec2013-04-02 20:22:16 +0000554 printf("EV: %s => EV_ABS ABS_MT_ORIENTATION %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400555 return 1;
556 break;
557
558 case ABS_MT_TOOL_TYPE: //37
559 LOGI("EV: %s => EV_ABS ABS_MT_TOOL_TYPE %d\n", e->deviceName, ev->value);
560 return 1;
561 break;
562
563 case ABS_MT_BLOB_ID: //38
Dees_Troy2673cec2013-04-02 20:22:16 +0000564 printf("EV: %s => EV_ABS ABS_MT_BLOB_ID %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400565 return 1;
566 break;
567
Dees_Troy51a0e822012-09-05 15:24:24 -0400568 case ABS_MT_DISTANCE: //3b
Dees_Troy2673cec2013-04-02 20:22:16 +0000569 printf("EV: %s => EV_ABS ABS_MT_DISTANCE %d\n", e->deviceName, ev->value);
Dees_Troy51a0e822012-09-05 15:24:24 -0400570 return 1;
571 break;
572#endif
573
574 default:
575 // This is an unhandled message, just skip it
576 return 1;
577 }
578
579 if (ev->code != ABS_MT_POSITION)
580 {
581 lastWasSynReport = 0;
582 return 1;
583 }
584 }
585
586 // Check if we should ignore the message
587 if (ev->code != ABS_MT_POSITION && (ev->type != EV_SYN || (ev->code != SYN_REPORT && ev->code != SYN_MT_REPORT)))
588 {
589 lastWasSynReport = 0;
590 return 0;
591 }
592
593#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000594 if (ev->type == EV_SYN && ev->code == SYN_REPORT) printf("EV: %s => EV_SYN SYN_REPORT\n", e->deviceName);
595 if (ev->type == EV_SYN && ev->code == SYN_MT_REPORT) printf("EV: %s => EV_SYN SYN_MT_REPORT\n", e->deviceName);
Dees_Troy51a0e822012-09-05 15:24:24 -0400596#endif
597
598 // Discard the MT versions
599 if (ev->code == SYN_MT_REPORT) return 0;
600
Dees_Troyd86400b2013-05-13 19:04:35 +0000601 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 -0400602 {
603 // Reset the value
604 touchReleaseOnNextSynReport = 0;
605
606 // We are a finger-up state
607 if (!discard)
608 {
609 // Report the key up
610 ev->type = EV_ABS;
611 ev->code = 0;
612 ev->value = (downX << 16) | downY;
613 }
614 downX = -1;
615 downY = -1;
616 if (discard)
617 {
618 discard = 0;
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100619
620 // Send the keyUp event
621 ev->type = EV_KEY;
622 ev->code = last_virt_key;
623 ev->value = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400624 }
625 return 0;
626 }
627 lastWasSynReport = 1;
628
629 // Retrieve where the x,y position is
630 if (e->p.synced & 0x03)
631 {
Dees_Troyb7ecc092013-08-24 12:15:41 +0000632 vk_tp_to_screen(&e->p, &x, &y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400633 }
634 else if (e->mt_p.synced & 0x03)
635 {
Dees_Troyb7ecc092013-08-24 12:15:41 +0000636 vk_tp_to_screen(&e->mt_p, &x, &y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400637 }
638 else
639 {
640 // We don't have useful information to convey
641 return 1;
642 }
643
644#ifdef RECOVERY_TOUCHSCREEN_SWAP_XY
645 x ^= y;
646 y ^= x;
647 x ^= y;
648#endif
649#ifdef RECOVERY_TOUCHSCREEN_FLIP_X
Dees_Troyb7ecc092013-08-24 12:15:41 +0000650 x = gr_fb_width() - x;
Dees_Troy51a0e822012-09-05 15:24:24 -0400651#endif
652#ifdef RECOVERY_TOUCHSCREEN_FLIP_Y
Dees_Troyb7ecc092013-08-24 12:15:41 +0000653 y = gr_fb_height() - y;
Dees_Troy51a0e822012-09-05 15:24:24 -0400654#endif
655
656#ifdef _EVENT_LOGGING
Dees_Troy2673cec2013-04-02 20:22:16 +0000657 printf("EV: x: %d y: %d\n", x, y);
Dees_Troy51a0e822012-09-05 15:24:24 -0400658#endif
659
660 // Clear the current sync states
661 e->p.synced = e->mt_p.synced = 0;
662
663 // If we have nothing useful to report, skip it
664 if (x == -1 || y == -1) return 1;
665
666 // On first touch, see if we're at a virtual key
667 if (downX == -1)
668 {
669 // Attempt mapping to virtual key
670 for (i = 0; i < e->vk_count; ++i)
671 {
672 int xd = ABS(e->vks[i].centerx - x);
673 int yd = ABS(e->vks[i].centery - y);
674
675 if (xd < e->vks[i].width/2 && yd < e->vks[i].height/2)
676 {
677 ev->type = EV_KEY;
678 ev->code = e->vks[i].scancode;
679 ev->value = 1;
680
Vojtech Bocek0b7fe502014-03-13 17:36:52 +0100681 last_virt_key = e->vks[i].scancode;
682
Dees_Troy51a0e822012-09-05 15:24:24 -0400683 vibrate(VIBRATOR_TIME_MS);
684
Matt Mowerfb1c4ff2014-04-16 13:43:36 -0500685 // Mark that all further movement until lift is discard,
Dees_Troy51a0e822012-09-05 15:24:24 -0400686 // and make sure we don't come back into this area
687 discard = 1;
688 downX = 0;
689 return 0;
690 }
691 }
692 }
693
694 // If we were originally a button press, discard this event
695 if (discard)
696 {
697 return 1;
698 }
699
700 // Record where we started the touch for deciding if this is a key or a scroll
701 downX = x;
702 downY = y;
703
704 ev->type = EV_ABS;
705 ev->code = 1;
706 ev->value = (x << 16) | y;
707 return 0;
708}
709
Dees_Troyb7ecc092013-08-24 12:15:41 +0000710int ev_get(struct input_event *ev, unsigned dont_wait)
Dees_Troy51a0e822012-09-05 15:24:24 -0400711{
712 int r;
713 unsigned n;
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100714 struct timeval curr;
Dees_Troy51a0e822012-09-05 15:24:24 -0400715
716 do {
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100717 gettimeofday(&curr, NULL);
718 if(curr.tv_sec - lastInputStat.tv_sec >= 2)
719 {
720 struct stat st;
721 stat("/dev/input", &st);
722 if (st.st_mtime > lastInputMTime)
723 {
724 LOGI("Reloading input devices\n");
725 ev_exit();
726 ev_init();
727 lastInputMTime = st.st_mtime;
728 }
729 lastInputStat = curr;
730 }
731
732 r = poll(ev_fds, ev_count, 0);
Dees_Troy51a0e822012-09-05 15:24:24 -0400733
734 if(r > 0) {
735 for(n = 0; n < ev_count; n++) {
736 if(ev_fds[n].revents & POLLIN) {
737 r = read(ev_fds[n].fd, ev, sizeof(*ev));
738 if(r == sizeof(*ev)) {
Dees_Troyb7ecc092013-08-24 12:15:41 +0000739 if (!vk_modify(&evs[n], ev))
Dees_Troy51a0e822012-09-05 15:24:24 -0400740 return 0;
741 }
742 }
743 }
744 }
Vojtech Bocek1fc30fc2014-01-29 18:37:19 +0100745
746 usleep(1000);
Dees_Troy51a0e822012-09-05 15:24:24 -0400747 } while(dont_wait == 0);
748
749 return -1;
750}
751
752int ev_wait(int timeout)
753{
754 return -1;
755}
756
757void ev_dispatch(void)
758{
759 return;
760}
761
762int ev_get_input(int fd, short revents, struct input_event *ev)
763{
764 return -1;
765}