You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
337 lines
6.7 KiB
337 lines
6.7 KiB
/* |
|
in_evdev.c - linux evdev interface support |
|
Copyright (C) 2015-2018 mittorn |
|
|
|
This program is free software: you can redistribute it and/or modify |
|
it under the terms of the GNU General Public License as published by |
|
the Free Software Foundation, either version 3 of the License, or |
|
(at your option) any later version. |
|
|
|
This program is distributed in the hope that it will be useful, |
|
but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
GNU General Public License for more details. |
|
*/ |
|
#ifdef XASH_USE_EVDEV |
|
|
|
#include <fcntl.h> |
|
#include <errno.h> |
|
#include <linux/input.h> |
|
#include <dirent.h> |
|
#include "common.h" |
|
#include "input.h" |
|
#include "client.h" |
|
#include "vgui_draw.h" |
|
|
|
#define MAX_EVDEV_DEVICES 5 |
|
|
|
struct evdev_s |
|
{ |
|
int initialized, devices; |
|
int fds[MAX_EVDEV_DEVICES]; |
|
string paths[MAX_EVDEV_DEVICES]; |
|
qboolean grab; |
|
float grabtime; |
|
float x, y; |
|
} evdev; |
|
|
|
int KeycodeFromEvdev(int keycode, int value); |
|
|
|
static void Evdev_CheckPermissions() |
|
{ |
|
#ifdef __ANDROID__ |
|
system( "su 0 chmod 664 /dev/input/event*" ); |
|
#endif |
|
} |
|
|
|
void Evdev_Setup( void ) |
|
{ |
|
if( evdev.initialized ) |
|
return; |
|
#ifdef __ANDROID__ |
|
system( "su 0 supolicy --live \"allow appdomain input_device dir { ioctl read getattr search open }\" \"allow appdomain input_device chr_file { ioctl read write getattr lock append open }\"" ); |
|
system( "su 0 setenforce permissive" ); |
|
#endif |
|
evdev.initialized = true; |
|
} |
|
|
|
#define EV_HASBIT( x, y ) ( x[y / 32] & (1 << y % 32) ) |
|
|
|
void Evdev_Autodetect_f( void ) |
|
{ |
|
int i; |
|
DIR *dir; |
|
struct dirent *entry; |
|
|
|
Evdev_Setup(); |
|
|
|
Evdev_CheckPermissions(); |
|
|
|
if( !( dir = opendir( "/dev/input" ) ) ) |
|
return; |
|
|
|
while( ( entry = readdir( dir ) ) ) |
|
{ |
|
int fd; |
|
string path; |
|
uint types[EV_MAX] = {0}; |
|
uint codes[( KEY_MAX - 1 ) / 32 + 1] = {0}; |
|
qboolean hasbtnmouse; |
|
|
|
if( evdev.devices >= MAX_EVDEV_DEVICES ) |
|
continue; |
|
|
|
Q_snprintf( path, MAX_STRING, "/dev/input/%s", entry->d_name ); |
|
|
|
for( i = 0; i < evdev.devices; i++ ) |
|
if( !Q_strncmp( evdev.paths[i], path, MAX_STRING ) ) |
|
goto next; |
|
|
|
if( Q_strncmp( entry->d_name, "event", 5 ) ) |
|
continue; |
|
|
|
fd = open( path, O_RDONLY | O_NONBLOCK ); |
|
|
|
if( fd == -1 ) |
|
continue; |
|
|
|
ioctl( fd, EVIOCGBIT( 0, EV_MAX ), types ); |
|
|
|
if( !EV_HASBIT( types, EV_KEY ) ) |
|
goto close; |
|
|
|
ioctl( fd, EVIOCGBIT( EV_KEY, KEY_MAX ), codes ); |
|
|
|
if( EV_HASBIT( codes, KEY_LEFTCTRL ) && EV_HASBIT( codes, KEY_SPACE ) ) |
|
goto open; |
|
|
|
if( !EV_HASBIT( codes, BTN_MOUSE ) ) |
|
goto close; |
|
|
|
if( EV_HASBIT( types, EV_REL ) ) |
|
{ |
|
Q_memset( codes, 0, sizeof( codes ) ); |
|
ioctl( fd, EVIOCGBIT( EV_REL, KEY_MAX ), codes ); |
|
|
|
if( !EV_HASBIT( codes, REL_X ) ) |
|
goto close; |
|
|
|
if( !EV_HASBIT( codes, REL_Y ) ) |
|
goto close; |
|
|
|
if( !EV_HASBIT( codes, REL_WHEEL ) ) |
|
goto close; |
|
|
|
goto open; |
|
} |
|
goto close; |
|
open: |
|
Q_strncpy( evdev.paths[evdev.devices], path, MAX_STRING ); |
|
evdev.fds[evdev.devices++] = fd; |
|
Msg( "Opened device %s\n", path ); |
|
goto next; |
|
close: |
|
close( fd ); |
|
next: |
|
continue; |
|
} |
|
closedir( dir ); |
|
|
|
} |
|
|
|
/* |
|
=========== |
|
Evdev_OpenDevice |
|
|
|
For shitty systems that cannot provide relative mouse axes |
|
=========== |
|
*/ |
|
void Evdev_OpenDevice ( const char *path ) |
|
{ |
|
int ret, i; |
|
|
|
if ( evdev.devices >= MAX_EVDEV_DEVICES ) |
|
{ |
|
Msg( "Only %d devices supported!\n", MAX_EVDEV_DEVICES ); |
|
return; |
|
} |
|
|
|
Evdev_Setup(); |
|
|
|
Evdev_CheckPermissions(); // use root to grant access to evdev |
|
|
|
for( i = 0; i < evdev.devices; i++ ) |
|
{ |
|
if( !Q_strncmp( evdev.paths[i], path, MAX_STRING ) ) |
|
{ |
|
Msg( "device %s already open!\n", path ); |
|
return; |
|
} |
|
} |
|
|
|
ret = open( path, O_RDONLY | O_NONBLOCK ); |
|
if( ret < 0 ) |
|
{ |
|
MsgDev( D_ERROR, "Could not open input device %s: %s\n", path, strerror( errno ) ); |
|
return; |
|
} |
|
Msg( "Input device #%d: %s opened sucessfully\n", evdev.devices, path ); |
|
evdev.fds[evdev.devices] = ret; |
|
Q_strncpy( evdev.paths[evdev.devices++], path, MAX_STRING ); |
|
} |
|
|
|
void Evdev_OpenDevice_f( void ) |
|
{ |
|
if( Cmd_Argc() < 2 ) |
|
Msg( S_USAGE "evdev_opendevice <path>\n" ); |
|
|
|
Evdev_OpenDevice( Cmd_Argv( 1 ) ); |
|
} |
|
|
|
/* |
|
=========== |
|
Evdev_CloseDevice_f |
|
=========== |
|
*/ |
|
void Evdev_CloseDevice_f ( void ) |
|
{ |
|
uint i; |
|
char *arg; |
|
|
|
if( Cmd_Argc() < 2 ) |
|
return; |
|
|
|
arg = Cmd_Argv( 1 ); |
|
|
|
if( Q_isdigit( arg ) ) |
|
i = Q_atoi( arg ); |
|
else for( i = 0; i < evdev.devices; i++ ) |
|
if( !Q_strncmp( evdev.paths[i], arg, MAX_STRING ) ) |
|
break; |
|
|
|
if( i >= evdev.devices ) |
|
{ |
|
Msg( "Device %s is not open\n", arg ); |
|
return; |
|
} |
|
|
|
close( evdev.fds[i] ); |
|
evdev.devices--; |
|
Msg( "Device %s closed successfully\n", evdev.paths[i] ); |
|
|
|
for( ; i < evdev.devices; i++ ) |
|
{ |
|
Q_strncpy( evdev.paths[i], evdev.paths[i+1], MAX_STRING ); |
|
evdev.fds[i] = evdev.fds[i+1]; |
|
} |
|
} |
|
|
|
void IN_EvdevFrame () |
|
{ |
|
int dx = 0, dy = 0, i; |
|
|
|
for( i = 0; i < evdev.devices; i++ ) |
|
{ |
|
struct input_event ev; |
|
|
|
while ( read( evdev.fds[i], &ev, 16) == 16 ) |
|
{ |
|
if ( ev.type == EV_REL ) |
|
{ |
|
switch ( ev.code ) |
|
{ |
|
case REL_X: dx += ev.value; |
|
break; |
|
|
|
case REL_Y: dy += ev.value; |
|
break; |
|
|
|
case REL_WHEEL: |
|
if( ev.value > 0) |
|
{ |
|
Key_Event( K_MWHEELDOWN, 1 ); |
|
Key_Event( K_MWHEELDOWN, 0 ); |
|
} |
|
else |
|
{ |
|
Key_Event( K_MWHEELUP, 1 ); |
|
Key_Event( K_MWHEELUP, 0 ); |
|
} |
|
break; |
|
} |
|
} |
|
else if ( ( ev.type == EV_KEY ) && cls.key_dest == key_game ) |
|
{ |
|
switch( ev.code ) |
|
{ |
|
case BTN_LEFT: |
|
Key_Event( K_MOUSE1, ev.value ); |
|
break; |
|
case BTN_MIDDLE: |
|
Key_Event( K_MOUSE3, ev.value ); |
|
break; |
|
case BTN_RIGHT: |
|
Key_Event( K_MOUSE2, ev.value ); |
|
break; |
|
default: |
|
Key_Event ( KeycodeFromEvdev( ev.code, ev.value ) , ev.value); |
|
} |
|
} |
|
} |
|
|
|
if( evdev.grab && evdev.grabtime <= host.realtime ) |
|
{ |
|
ioctl( evdev.fds[i], EVIOCGRAB, (void*) 1 ); |
|
Key_ClearStates(); |
|
} |
|
|
|
if( m_ignore->integer ) |
|
continue; |
|
|
|
evdev.x += -dx * m_yaw->value; |
|
evdev.y += dy * m_pitch->value; |
|
} |
|
if( evdev.grabtime <= host.realtime ) |
|
evdev.grab = false; |
|
} |
|
|
|
void Evdev_SetGrab( qboolean grab ) |
|
{ |
|
int i; |
|
|
|
if( grab ) |
|
{ |
|
Key_Event( K_ESCAPE, 0 ); //Do not leave ESC down |
|
evdev.grabtime = host.realtime + 0.5; |
|
Key_ClearStates(); |
|
} |
|
else |
|
{ |
|
for( i = 0; i < evdev.devices; i++ ) |
|
ioctl( evdev.fds[i], EVIOCGRAB, (void*) 0 ); |
|
} |
|
evdev.grab = grab; |
|
} |
|
|
|
void IN_EvdevMove( float *yaw, float *pitch ) |
|
{ |
|
*yaw += evdev.x; |
|
*pitch += evdev.y; |
|
evdev.x = evdev.y = 0.0f; |
|
} |
|
|
|
void Evdev_Init( void ) |
|
{ |
|
Cmd_AddCommand ("evdev_open", Evdev_OpenDevice_f, "Open event device"); |
|
Cmd_AddCommand ("evdev_close", Evdev_CloseDevice_f, "Close event device"); |
|
Cmd_AddCommand ("evdev_autodetect", Evdev_Autodetect_f, "Automaticly open mouses and keyboards"); |
|
} |
|
|
|
void Evdev_Shutdown( void ) |
|
{ |
|
Cmd_RemoveCommand( "evdev_open" ); |
|
Cmd_RemoveCommand( "evdev_close" ); |
|
Cmd_RemoveCommand( "evdev_autodetect" ); |
|
} |
|
|
|
#endif // XASH_USE_EVDEV
|
|
|