Initial commit of Linux plugin

git-svn-id: file:///home/sven/projects/JOGL/git-svn/svn-server-sync/jinput/trunk@23 e343933a-64c8-49c5-92b1-88f2ce3e89e8

1 files changed, 178 insertions, 0 deletions

diff --git a/plugins/linux/src/native/JoystickDevice.cpp b/plugins/linux/src/native/JoystickDevice.cpp
new file mode 100644
index 0000000..c20fc22
--- /dev/null
+++ b/plugins/linux/src/native/JoystickDevice.cpp
@@ -0,0 +1,178 @@
+/**
+ * Copyright (C) 2003 Jeremy Booth ([email protected])
+ *
+ * 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 "eventInterfaceTypes.h"
+#include "JoystickDevice.h"
+#include <stdio.h>
+#include <linux/input.h>
+#include <linux/joystick.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <malloc.h>
+#include <errno.h>
+
+JoystickDevice::JoystickDevice(char *deviceFileName) {
+  char tempName[Device::MAX_NAME_LENGTH-1] = "Unknown";
+  int i;
+
+  fd = open(deviceFileName, O_RDWR | O_NONBLOCK);
+  /*if(fd<0) {
+    char errorMessage[512];
+    sprintf(errorMessage, "Error opening device %s\n", deviceFileName);
+    perror(errorMessage);
+  }*/
+
+  if(fd>0){
+    if(ioctl(fd, JSIOCGNAME(sizeof(tempName)), tempName) < 0) {
+      char errorMessage[512];
+      sprintf(errorMessage, "Error reading device %s\n", deviceFileName);
+      perror(errorMessage);
+    }
+
+    int namelength=strlen(tempName);
+    name = (char *)malloc(namelength+1);
+    strncpy(name,tempName, namelength+1);
+
+    char tempNumButtons;
+    char tempNumAxes;
+    ioctl (fd, JSIOCGBUTTONS, &tempNumButtons);
+    ioctl (fd, JSIOCGAXES, &tempNumAxes);
+
+    numButtons = tempNumButtons;
+    numAbsAxes = tempNumAxes;
+
+    //fprintf(stderr, "Got joystick %s with %d buttons and %d axes\n", tempName, numButtons, numAbsAxes);
+
+    //buttonData = (uint8_t *)malloc(numButtons * sizeof(uint8_t));
+    buttonData = new uint8_t[numButtons];
+    //absAxesData = (int *)malloc(numAbsAxes * sizeof(int));
+    absAxesData = new int[numAbsAxes];
+
+    inited = 1;
+  }
+}
+
+int JoystickDevice::isValidDevice() {
+  return inited; 
+}
+
+int JoystickDevice::getNumberRelAxes(){
+  if(inited!=1) return -1;
+  return 0;
+}
+
+int JoystickDevice::getNumberAbsAxes(){
+  if(inited!=1) return -1;
+  return numAbsAxes;
+}
+
+int JoystickDevice::getNumberButtons(){
+  if(inited!=1) return -1;
+  return numButtons;
+}
+
+const char *JoystickDevice::getName(){ 
+  return name;
+}
+
+int JoystickDevice::getBusType(){
+  if(inited!=1) return -1;
+  return 0;
+}
+
+int JoystickDevice::getVendorID(){
+  if(inited!=1) return -1;
+  return 0;
+}
+
+int JoystickDevice::getProductID(){
+  if(inited!=1) return -1;
+  return 0;
+}
+
+int JoystickDevice::getVersion(){
+  if(inited!=1) return -1;
+  return 0;
+}
+
+void JoystickDevice::getSupportedRelAxes(int supportedAxis[]){
+}
+
+void JoystickDevice::getSupportedAbsAxes(int supportedAxis[]){
+}
+
+void JoystickDevice::getSupportedButtons(int supportedButtons[]){
+}
+
+/**
+ * A return value of -1 means error, 0 means ok, but no change
+ * a return of >0 means the data for this device has changed
+ */
+int JoystickDevice::poll(){
+  struct js_event event;
+  int numEvents = 0;
+  while(read(fd, &event, sizeof event) > 0) {
+    numEvents++;
+    event.type &= ~JS_EVENT_INIT;
+    if(event.type == JS_EVENT_BUTTON) {
+      buttonData[event.number] = event.value;
+    } else if(event.type == JS_EVENT_AXIS) {
+      absAxesData[event.number] = event.value;
+    }
+
+  }
+  // EAGAIN is returned when the queue is empty
+  if(errno != EAGAIN) {
+    printf("Something went wrong getting an event\n");
+  }
+
+  return numEvents;
+}
+
+void JoystickDevice::getPolledData(int relAxesData[], int absAxesData[], int buttonData[]){
+  int i;
+
+  if(inited!=1) return;
+  for(i=0;i<numAbsAxes;i++) {
+    (absAxesData)[i] = this->absAxesData[i];
+  }
+  for(i=0;i<numButtons;i++) {
+    (buttonData)[i] = this->buttonData[i];
+  }
+}
+
+int JoystickDevice::getAbsAxisMinimum(int axisNumber) {
+  return -32767;
+}
+
+int JoystickDevice::getAbsAxisMaximum(int axisNumber) {
+  return 32767;
+}
+
+int JoystickDevice::getAbsAxisFuzz(int axisNumber) {
+  return 0;
+}