PawletOS/android_bootable_recovery
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
aed1bdfe59fddd8ee59ff6bbfbcdabf89df808ff
android_bootable_recovery/minuitwrp/events.cpp
soulr344 f831bff1e1 events: fix haptics on newer Samsung devices 
Newer Samsung devices have a single file that enables/disables/sets the timeout for vibration in /sys/class/timed_output/vibrator/enable
The content of the file determines the state of the vibrator, 0 being vibrator being off and any other value being the time in ms that the vibrator is going to run before resetting to 0 again.

Change-Id: I1144e139285494e43b8656229ad6df10d5b48f39
Signed-off-by: soulr344 <soul@totsuka.gq>
2021-08-28 22:36:27 +00:00

842 lines
22 KiB
C++
Raw Blame History

/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/poll.h>
#include <limits.h>
#include <linux/input.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <fstream>
#ifdef USE_QTI_HAPTICS
#include <android/hardware/vibrator/1.2/IVibrator.h>
#endif
#ifdef USE_QTI_AIDL_HAPTICS
#include <aidl/android/hardware/vibrator/IVibrator.h>
#include <android/binder_manager.h>
using ::aidl::android::hardware::vibrator::IVibrator;
static const std::string kVibratorInstance = std::string(IVibrator::descriptor) + "/default";
#endif
#include "common.h"
#include "minuitwrp/minui.h"
//#define _EVENT_LOGGING
#define MAX_DEVICES 32
#define VIBRATOR_TIMEOUT_FILE "/sys/class/timed_output/vibrator/enable"
#define VIBRATOR_TIME_MS 50
#define LEDS_HAPTICS_DURATION_FILE "/sys/class/leds/vibrator/duration"
#define LEDS_HAPTICS_ACTIVATE_FILE "/sys/class/leds/vibrator/activate"
#ifndef SYN_REPORT
#define SYN_REPORT 0x00
#endif
#ifndef SYN_CONFIG
#define SYN_CONFIG 0x01
#endif
#ifndef SYN_MT_REPORT
#define SYN_MT_REPORT 0x02
#endif
#define ABS_MT_POSITION 0x2a /* Group a set of X and Y */
#define ABS_MT_AMPLITUDE 0x2b /* Group a set of Z and W */
#define ABS_MT_SLOT 0x2f
#define ABS_MT_TOUCH_MAJOR 0x30
#define ABS_MT_TOUCH_MINOR 0x31
#define ABS_MT_WIDTH_MAJOR 0x32
#define ABS_MT_WIDTH_MINOR 0x33
#define ABS_MT_ORIENTATION 0x34
#define ABS_MT_POSITION_X 0x35
#define ABS_MT_POSITION_Y 0x36
#define ABS_MT_TOOL_TYPE 0x37
#define ABS_MT_BLOB_ID 0x38
#define ABS_MT_TRACKING_ID 0x39
#define ABS_MT_PRESSURE 0x3a
#define ABS_MT_DISTANCE 0x3b
enum {
DOWN_NOT,
DOWN_SENT,
DOWN_RELEASED,
};
struct virtualkey {
int scancode;
int centerx, centery;
int width, height;
};
struct position {
int x, y;
int synced;
struct input_absinfo xi, yi;
};
struct ev {
struct pollfd *fd;
struct virtualkey *vks;
int vk_count;
char deviceName[64];
int ignored;
struct position p, mt_p;
int down;
};
static struct pollfd ev_fds[MAX_DEVICES];
static struct ev evs[MAX_DEVICES];
static unsigned ev_count = 0;
static struct timeval lastInputStat;
static time_t lastInputMTime;
static int has_mouse = 0;
static inline int ABS(int x) {
return x<0?-x:x;
}
int write_to_file(const std::string& fn, const std::string& line) {
FILE *file;
file = fopen(fn.c_str(), "w");
if (file != NULL) {
fwrite(line.c_str(), line.size(), 1, file);
fclose(file);
return 0;
}
LOGI("Cannot find file %s\n", fn.c_str());
return -1;
}
#ifndef TW_NO_HAPTICS
#ifndef TW_HAPTICS_TSPDRV
int vibrate(int timeout_ms)
{
if (timeout_ms > 10000) timeout_ms = 1000;
char tout[6];
sprintf(tout, "%i", timeout_ms);
#ifdef USE_QTI_HAPTICS
android::sp<android::hardware::vibrator::V1_2::IVibrator> vib = android::hardware::vibrator::V1_2::IVibrator::getService();
if (vib != nullptr) {
vib->on((uint32_t)timeout_ms);
}
#elif defined(USE_QTI_AIDL_HAPTICS)
std::shared_ptr<IVibrator> vib = IVibrator::fromBinder(ndk::SpAIBinder(AServiceManager_getService(kVibratorInstance.c_str())));
if (vib != nullptr) {
vib->on((uint32_t)timeout_ms, nullptr);
}
#elif defined(USE_SAMSUNG_HAPTICS)
/* Newer Samsung devices have duration file only
0 in VIBRATOR_TIMEOUT_FILE means no vibration
Anything else is the vibration running for X milliseconds */
if (std::ifstream(VIBRATOR_TIMEOUT_FILE).good()) {
write_to_file(VIBRATOR_TIMEOUT_FILE, tout);
}
#else
if (std::ifstream(LEDS_HAPTICS_ACTIVATE_FILE).good()) {
write_to_file(LEDS_HAPTICS_DURATION_FILE, tout);
write_to_file(LEDS_HAPTICS_ACTIVATE_FILE, "1");
} else
write_to_file(VIBRATOR_TIMEOUT_FILE, tout);
#endif
return 0;
}
#endif
#endif
/* Returns empty tokens */
static char *vk_strtok_r(char *str, const char *delim, char **save_str)
{
if(!str)
{
if(!*save_str)
return NULL;
str = (*save_str) + 1;
}
*save_str = strpbrk(str, delim);
if (*save_str)
**save_str = '\0';
return str;
}
static int vk_init(struct ev *e)
{
char vk_path[PATH_MAX] = "/sys/board_properties/virtualkeys.";
char vks[2048], *ts = NULL;
ssize_t len;
int vk_fd;
int i;
e->vk_count = 0;
len = strlen(vk_path);
len = ioctl(e->fd->fd, EVIOCGNAME(sizeof(e->deviceName)), e->deviceName);
if (len <= 0)
{
LOGE("Unable to query event object.\n");
return -1;
}
#ifdef _EVENT_LOGGING
printf("Event object: %s\n", e->deviceName);
#endif
#ifdef WHITELIST_INPUT
if (strcmp(e->deviceName, EXPAND(WHITELIST_INPUT)) != 0)
{
e->ignored = 1;
}
#else
#ifndef TW_INPUT_BLACKLIST
// Blacklist these "input" devices, use TW_INPUT_BLACKLIST := "accelerometer\x0atest1\x0atest2" using the \x0a as a separator between input devices
if (strcmp(e->deviceName, "bma250") == 0 || strcmp(e->deviceName, "bma150") == 0)
{
LOGI("Blacklisting input device: %s\n", e->deviceName);
e->ignored = 1;
}
#else
char* bl = strdup(EXPAND(TW_INPUT_BLACKLIST));
char* blacklist = strtok(bl, "\n");
while (blacklist != NULL) {
if (strcmp(e->deviceName, blacklist) == 0) {
LOGI("Blacklisting input device: %s\n", blacklist);
e->ignored = 1;
}
blacklist = strtok(NULL, "\n");
}
free(bl);
#endif
#endif
strcat(vk_path, e->deviceName);
// Some devices split the keys from the touchscreen
e->vk_count = 0;
vk_fd = open(vk_path, O_RDONLY);
if (vk_fd >= 0)
{
len = read(vk_fd, vks, sizeof(vks)-1);
close(vk_fd);
if (len <= 0)
return -1;
vks[len] = '\0';
/* Parse a line like:
keytype:keycode:centerx:centery:width:height:keytype2:keycode2:centerx2:...
*/
for (ts = vks, e->vk_count = 1; *ts; ++ts) {
if (*ts == ':')
++e->vk_count;
}
if (e->vk_count % 6) {
LOGI("minui: %s is %d %% 6\n", vk_path, e->vk_count % 6);
}
e->vk_count /= 6;
if (e->vk_count <= 0)
return -1;
e->down = DOWN_NOT;
}
ioctl(e->fd->fd, EVIOCGABS(ABS_X), &e->p.xi);
ioctl(e->fd->fd, EVIOCGABS(ABS_Y), &e->p.yi);
e->p.synced = 0;
#ifdef _EVENT_LOGGING
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);
#endif
ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_X), &e->mt_p.xi);
ioctl(e->fd->fd, EVIOCGABS(ABS_MT_POSITION_Y), &e->mt_p.yi);
e->mt_p.synced = 0;
#ifdef _EVENT_LOGGING
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);
#endif
e->vks = (virtualkey *)malloc(sizeof(*e->vks) * e->vk_count);
for (i = 0; i < e->vk_count; ++i) {
char *token[6];
int j;
for (j = 0; j < 6; ++j) {
token[j] = vk_strtok_r((i||j)?NULL:vks, ":", &ts);
}
if (strcmp(token[0], "0x01") != 0) {
/* Java does string compare, so we do too. */
LOGI("minui: %s: ignoring unknown virtual key type %s\n", vk_path, token[0]);
continue;
}
e->vks[i].scancode = strtol(token[1], NULL, 0);
e->vks[i].centerx = strtol(token[2], NULL, 0);
e->vks[i].centery = strtol(token[3], NULL, 0);
e->vks[i].width = strtol(token[4], NULL, 0);
e->vks[i].height = strtol(token[5], NULL, 0);
}
return 0;
}
#define BITS_PER_LONG (sizeof(long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
// Check for EV_REL (REL_X and REL_Y) and, because touchscreens can have those too,
// check also for EV_KEY (BTN_LEFT and BTN_RIGHT)
static void check_mouse(int fd, const char* deviceName)
{
if(has_mouse)
return;
unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
memset(bit, 0, sizeof(bit));
ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
if(!test_bit(EV_REL, bit[0]) || !test_bit(EV_KEY, bit[0]))
return;
ioctl(fd, EVIOCGBIT(EV_REL, KEY_MAX), bit[EV_REL]);
if(!test_bit(REL_X, bit[EV_REL]) || !test_bit(REL_Y, bit[EV_REL]))
return;
ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]);
if(!test_bit(BTN_LEFT, bit[EV_KEY]) || !test_bit(BTN_RIGHT, bit[EV_KEY]))
return;
LOGI("Found mouse '%s'\n", deviceName);
has_mouse = 1;
}
int ev_has_mouse(void)
{
return has_mouse;
}
int ev_init(void)
{
DIR *dir;
struct dirent *de;
int fd;
has_mouse = 0;
dir = opendir("/dev/input");
if(dir != 0) {
while((de = readdir(dir))) {
#ifdef _EVENT_LOGGING
fprintf(stderr,"/dev/input/%s\n", de->d_name);
#endif
if(strncmp(de->d_name,"event",5)) continue;
fd = openat(dirfd(dir), de->d_name, O_RDONLY);
if(fd < 0) continue;
ev_fds[ev_count].fd = fd;
ev_fds[ev_count].events = POLLIN;
evs[ev_count].fd = &ev_fds[ev_count];
/* Load virtualkeys if there are any */
vk_init(&evs[ev_count]);
if (!evs[ev_count].ignored)
check_mouse(fd, evs[ev_count].deviceName);
ev_count++;
if(ev_count == MAX_DEVICES) break;
}
closedir(dir);
}
struct stat st;
if(stat("/dev/input", &st) >= 0)
lastInputMTime = st.st_mtime;
gettimeofday(&lastInputStat, NULL);
return 0;
}
void ev_exit(void)
{
while (ev_count-- > 0) {
if (evs[ev_count].vk_count) {
free(evs[ev_count].vks);
evs[ev_count].vk_count = 0;
}
close(ev_fds[ev_count].fd);
}
ev_count = 0;
}
/*static int vk_inside_display(__s32 value, struct input_absinfo *info, int screen_size)
{
int screen_pos;
if (info->minimum == info->maximum)
return 0;
screen_pos = (value - info->minimum) * (screen_size - 1) / (info->maximum - info->minimum);
return (screen_pos >= 0 && screen_pos < screen_size);
}*/
static int vk_tp_to_screen(struct position *p, int *x, int *y)
{
if (p->xi.minimum == p->xi.maximum || p->yi.minimum == p->yi.maximum)
{
// In this case, we assume the screen dimensions are the same.
*x = p->x;
*y = p->y;
return 0;
}
#ifdef _EVENT_LOGGING
printf("EV: p->x=%d x-range=%d,%d fb-width=%d\n", p->x, p->xi.minimum, p->xi.maximum, gr_fb_width());
#endif
#ifndef RECOVERY_TOUCHSCREEN_SWAP_XY
int fb_width = gr_fb_width();
int fb_height = gr_fb_height();
#else
// We need to swap the scaling sizes, too
int fb_width = gr_fb_height();
int fb_height = gr_fb_width();
#endif
*x = (p->x - p->xi.minimum) * (fb_width - 1) / (p->xi.maximum - p->xi.minimum);
*y = (p->y - p->yi.minimum) * (fb_height - 1) / (p->yi.maximum - p->yi.minimum);
if (*x >= 0 && *x < fb_width &&
*y >= 0 && *y < fb_height)
{
return 0;
}
return 1;
}
/* Translate a virtual key in to a real key event, if needed */
/* Returns non-zero when the event should be consumed */
static int vk_modify(struct ev *e, struct input_event *ev)
{
static int downX = -1, downY = -1;
static int discard = 0;
static int last_virt_key = 0;
static int lastWasSynReport = 0;
static int touchReleaseOnNextSynReport = 0;
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
int i;
int x, y;
// This is used to ditch useless event handlers, like an accelerometer
if (e->ignored) return 1;
if (ev->type == EV_REL && ev->code == REL_Z)
{
// This appears to be an accelerometer or another strange input device. It's not the touchscreen.
#ifdef _EVENT_LOGGING
printf("EV: Device disabled due to non-touchscreen messages.\n");
#endif
e->ignored = 1;
return 1;
}
#ifdef _EVENT_LOGGING
printf("EV: %s => type: %x code: %x value: %d\n", e->deviceName, ev->type, ev->code, ev->value);
#endif
// Handle keyboard events, value of 1 indicates key down, 0 indicates key up
if (ev->type == EV_KEY) {
return 0;
}
if (ev->type == EV_ABS) {
switch (ev->code) {
case ABS_X: //00
e->p.synced |= 0x01;
e->p.x = ev->value;
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_X %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_Y: //01
e->p.synced |= 0x02;
e->p.y = ev->value;
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_Y %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_POSITION: //2a
e->mt_p.synced = 0x03;
if (ev->value == (1 << 31))
{
#ifndef TW_IGNORE_MT_POSITION_0
e->mt_p.x = 0;
e->mt_p.y = 0;
lastWasSynReport = 1;
#endif
#ifdef _EVENT_LOGGING
#ifndef TW_IGNORE_MT_POSITION_0
printf("EV: %s => EV_ABS ABS_MT_POSITION %d, set x and y to 0 and lastWasSynReport to 1\n", e->deviceName, ev->value);
#else
printf("Ignoring ABS_MT_POSITION 0\n", e->deviceName, ev->value);
#endif
#endif
}
else
{
lastWasSynReport = 0;
e->mt_p.x = (ev->value & 0x7FFF0000) >> 16;
e->mt_p.y = (ev->value & 0xFFFF);
#ifdef _EVENT_LOGGING
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));
#endif
}
break;
case ABS_MT_TOUCH_MAJOR: //30
if (ev->value == 0)
{
#ifndef TW_IGNORE_MAJOR_AXIS_0
// We're in a touch release, although some devices will still send positions as well
e->mt_p.x = 0;
e->mt_p.y = 0;
touchReleaseOnNextSynReport = 1;
#endif
}
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_TOUCH_MAJOR %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_PRESSURE: //3a
if (ev->value == 0)
{
// We're in a touch release, although some devices will still send positions as well
e->mt_p.x = 0;
e->mt_p.y = 0;
touchReleaseOnNextSynReport = 1;
}
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_PRESSURE %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_POSITION_X: //35
e->mt_p.synced |= 0x01;
e->mt_p.x = ev->value;
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_POSITION_X %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_POSITION_Y: //36
e->mt_p.synced |= 0x02;
e->mt_p.y = ev->value;
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_POSITION_Y %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_TOUCH_MINOR: //31
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_TOUCH_MINOR %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_WIDTH_MAJOR: //32
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_WIDTH_MAJOR %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_WIDTH_MINOR: //33
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_WIDTH_MINOR %d\n", e->deviceName, ev->value);
#endif
break;
case ABS_MT_TRACKING_ID: //39
#ifdef TW_IGNORE_ABS_MT_TRACKING_ID
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d ignored\n", e->deviceName, ev->value);
#endif
return 1;
#endif
if (ev->value < 0) {
e->mt_p.x = 0;
e->mt_p.y = 0;
touchReleaseOnNextSynReport = 2;
use_tracking_id_negative_as_touch_release = 1;
#ifdef _EVENT_LOGGING
if (use_tracking_id_negative_as_touch_release)
printf("using ABS_MT_TRACKING_ID value -1 to indicate touch releases\n");
#endif
}
#ifdef _EVENT_LOGGING
printf("EV: %s => EV_ABS ABS_MT_TRACKING_ID %d\n", e->deviceName, ev->value);
#endif
break;
#ifdef _EVENT_LOGGING
// These are for touch logging purposes only
case ABS_MT_ORIENTATION: //34
printf("EV: %s => EV_ABS ABS_MT_ORIENTATION %d\n", e->deviceName, ev->value);
return 1;
break;
case ABS_MT_TOOL_TYPE: //37
LOGI("EV: %s => EV_ABS ABS_MT_TOOL_TYPE %d\n", e->deviceName, ev->value);
return 1;
break;
case ABS_MT_BLOB_ID: //38
printf("EV: %s => EV_ABS ABS_MT_BLOB_ID %d\n", e->deviceName, ev->value);
return 1;
break;
case ABS_MT_DISTANCE: //3b
printf("EV: %s => EV_ABS ABS_MT_DISTANCE %d\n", e->deviceName, ev->value);
return 1;
break;
case ABS_MT_SLOT:
printf("EV: %s => ABS_MT_SLOT %d\n", e->deviceName, ev->value);
return 1;
break;
#endif
default:
// This is an unhandled message, just skip it
return 1;
}
if (ev->code != ABS_MT_POSITION)
{
lastWasSynReport = 0;
return 1;
}
}
// Check if we should ignore the message
if (ev->code != ABS_MT_POSITION && (ev->type != EV_SYN || (ev->code != SYN_REPORT && ev->code != SYN_MT_REPORT)))
{
lastWasSynReport = 0;
return 0;
}
#ifdef _EVENT_LOGGING
if (ev->type == EV_SYN && ev->code == SYN_REPORT)
printf("EV: %s => EV_SYN SYN_REPORT\n", e->deviceName);
if (ev->type == EV_SYN && ev->code == SYN_MT_REPORT)
printf("EV: %s => EV_SYN SYN_MT_REPORT\n", e->deviceName);
#endif
// Discard the MT versions
if (ev->code == SYN_MT_REPORT) return 0;
if (((lastWasSynReport == 1 || touchReleaseOnNextSynReport == 1) && !use_tracking_id_negative_as_touch_release) || (use_tracking_id_negative_as_touch_release && touchReleaseOnNextSynReport == 2))
{
// Reset the value
touchReleaseOnNextSynReport = 0;
// We are a finger-up state
if (!discard)
{
// Report the key up
ev->type = EV_ABS;
ev->code = 0;
ev->value = (downX << 16) | downY;
}
downX = -1;
downY = -1;
if (discard)
{
discard = 0;
// Send the keyUp event
ev->type = EV_KEY;
ev->code = last_virt_key;
ev->value = 0;
}
return 0;
}
lastWasSynReport = 1;
// Retrieve where the x,y position is
if (e->p.synced & 0x03)
{
vk_tp_to_screen(&e->p, &x, &y);
}
else if (e->mt_p.synced & 0x03)
{
vk_tp_to_screen(&e->mt_p, &x, &y);
}
else
{
// We don't have useful information to convey
return 1;
}
#ifdef RECOVERY_TOUCHSCREEN_SWAP_XY
x ^= y;
y ^= x;
x ^= y;
#endif
#ifdef RECOVERY_TOUCHSCREEN_FLIP_X
x = gr_fb_width() - x;
#endif
#ifdef RECOVERY_TOUCHSCREEN_FLIP_Y
y = gr_fb_height() - y;
#endif
#ifdef _EVENT_LOGGING
printf("EV: x: %d y: %d\n", x, y);
#endif
// Clear the current sync states
e->p.synced = e->mt_p.synced = 0;
// If we have nothing useful to report, skip it
if (x == -1 || y == -1) return 1;
// Special case, we'll ignore touches on 0,0 because it usually means
// that we received extra data after our last sync and x and y were
// reset to 0. We should not be using 0,0 anyway.
if (x == 0 && y == 0)
return 1;
// On first touch, see if we're at a virtual key
if (downX == -1)
{
// Attempt mapping to virtual key
for (i = 0; i < e->vk_count; ++i)
{
int xd = ABS(e->vks[i].centerx - x);
int yd = ABS(e->vks[i].centery - y);
if (xd < e->vks[i].width/2 && yd < e->vks[i].height/2)
{
ev->type = EV_KEY;
ev->code = e->vks[i].scancode;
ev->value = 1;
last_virt_key = e->vks[i].scancode;
#ifndef TW_NO_HAPTICS
vibrate(VIBRATOR_TIME_MS);
#endif
// Mark that all further movement until lift is discard,
// and make sure we don't come back into this area
discard = 1;
downX = 0;
return 0;
}
}
}
// If we were originally a button press, discard this event
if (discard)
{
return 1;
}
// Record where we started the touch for deciding if this is a key or a scroll
downX = x;
downY = y;
ev->type = EV_ABS;
ev->code = 1;
ev->value = (x << 16) | y;
return 0;
}
int ev_get(struct input_event *ev, int timeout_ms)
{
int r;
unsigned n;
struct timeval curr;
gettimeofday(&curr, NULL);
if(curr.tv_sec - lastInputStat.tv_sec >= 2)
{
struct stat st;
stat("/dev/input", &st);
if (st.st_mtime > lastInputMTime)
{
LOGI("Reloading input devices\n");
ev_exit();
ev_init();
lastInputMTime = st.st_mtime;
}
lastInputStat = curr;
}
r = poll(ev_fds, ev_count, timeout_ms);
if(r > 0) {
for(n = 0; n < ev_count; n++) {
if(ev_fds[n].revents & POLLIN) {
r = read(ev_fds[n].fd, ev, sizeof(*ev));
if(r == sizeof(*ev)) {
if (!vk_modify(&evs[n], ev))
return 0;
}
}
}
return -1;
}
return -2;
}
int ev_wait(int timeout __unused)
{
return -1;
}
void ev_dispatch(void)
{
return;
}
int ev_get_input(int fd __unused, short revents __unused, struct input_event *ev __unused)
{
return -1;
}
Reference in New Issue View Git Blame Copy Permalink