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/**
* Copyright (C) 2003 Jeremy Booth (jeremy@newdawnsoftware.com)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer. Redistributions in binary
* form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided
* with the distribution.
* The name of the author may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*/
#include <sys/dir.h>
#include <stdio.h>
#include <dirent.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <linux/joystick.h>
#include <string.h>
#include <malloc.h>
#include <unistd.h>
#include "Device.h"
#include "JoystickDevice.h"
int jsNumDevices;
int joystickInterfaceVersion;
Device **jsDeviceList;
int jsInited = 0;
int jsFileFilter(const struct direct *entry) {
if (strncmp(entry->d_name, "js", 2) == 0) {
return 1;
}
return 0;
}
int jsGetDeviceFiles(char ***filenames) {
struct direct **files;
int num_files, i;
char dirName[] = {"/dev/input"};
num_files = scandir(dirName, &files, &jsFileFilter, alphasort);
*filenames = (char **)malloc(num_files * sizeof(char *));
for(i=0;i<num_files;i++) {
char *filename = files[i]->d_name;
char *fullFileName;
fullFileName = (char *)malloc((strlen(dirName) + 1 + strlen(filename) + 1));
sprintf(fullFileName, "%s/%s", dirName, filename);
(*filenames)[i] = fullFileName;
}
return num_files;
}
int jsInit() {
int fd=-1;
int i;
char **deviceFileNames;
int numDeviceFiles;
numDeviceFiles = jsGetDeviceFiles(&deviceFileNames);
if(numDeviceFiles<0) {
return -1;
}
if ((fd = open(deviceFileNames[0], O_RDONLY)) <0) {
jsNumDevices = 0;
jsInited=1;
return 0;
}
if (ioctl(fd, JSIOCGVERSION, &joystickInterfaceVersion)) {
close(fd);
jsNumDevices = 0;
jsInited=1;
return 0;
}
if(fd>=0) {close(fd);}
Device *tempDeviceList[numDeviceFiles];
jsNumDevices = 0;
for(i=0;i<numDeviceFiles;i++) {
JoystickDevice *tempDevice = new JoystickDevice(deviceFileNames[i]);
if(tempDevice->isValidDevice()==1) {
tempDeviceList[i] = tempDevice;
jsNumDevices++;
}
}
int highDeviceCountNumber = i;
int jsTempDeviceCount = 0;
// Now we know for certain which devices are open, we can take notes
jsDeviceList = (Device **)malloc(jsNumDevices * sizeof(Device *));
for(i=0;i<jsNumDevices;i++) {
while(tempDeviceList[jsTempDeviceCount] == NULL) {
jsTempDeviceCount++;
}
jsDeviceList[i] = tempDeviceList[jsTempDeviceCount];
//printf("Copied joystick %d to %d\n", jsTempDeviceCount, i);
jsTempDeviceCount++;
}
jsInited=1;
return 0;
}
int jsGetJoystickInterfaceVersionNumber() {
return joystickInterfaceVersion;
}
int jsGetNumberDevices() {
if(jsInited) {
return jsNumDevices;
}
return -1;
}
void jsGetDevices(Device **theirDeviceList) {
int i;
for(i=0;i<jsNumDevices;i++) {
theirDeviceList[i] = jsDeviceList[i];
}
}
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