1 files changed, 95 insertions, 0 deletions
diff --git a/libusb/os/driver/dispatch.c b/libusb/os/driver/dispatch.c
new file mode 100644
index 0000000..98cd8e8
--- /dev/null
+++ b/libusb/os/driver/dispatch.c
@@ -0,0 +1,95 @@
+/* LIBUSB-WIN32, Generic Windows USB Library
+ * Copyright (c) 2002-2005 Stephan Meyer <ste_meyer@web.de>
+ *
+ * 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 2 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "libusb_driver.h"
+
+NTSTATUS DDKAPI dispatch(DEVICE_OBJECT *device_object, IRP *irp)
+{
+  libusb_device_t *dev = device_object->DeviceExtension;
+
+  switch(IoGetCurrentIrpStackLocation(irp)->MajorFunction) 
+    {
+    case IRP_MJ_PNP:
+      return dispatch_pnp(dev, irp);
+      
+    case IRP_MJ_POWER:
+      return dispatch_power(dev, irp);
+    }
+
+  /* since this driver may run as an upper filter we have to check whether */
+  /* the IRP is sent to this device object or to the lower one */
+  if(accept_irp(dev, irp))
+    {
+      switch(IoGetCurrentIrpStackLocation(irp)->MajorFunction) 
+        {
+        case IRP_MJ_DEVICE_CONTROL:
+          
+          if(dev->is_started)
+            {
+              return dispatch_ioctl(dev, irp);
+            }
+          else /* not started yet */
+            {
+              return complete_irp(irp, STATUS_INVALID_DEVICE_STATE, 0);
+            }
+
+        case IRP_MJ_CREATE:
+          
+          if(dev->is_started)
+            {
+              if(InterlockedIncrement(&dev->ref_count) == 1)
+                {
+                  if(dev->power_state.DeviceState != PowerDeviceD0)
+                    {
+                      /* power up the device, block until the call */
+                      /* completes */
+                      power_set_device_state(dev, PowerDeviceD0, TRUE);
+                    }
+                }
+
+              return complete_irp(irp, STATUS_SUCCESS, 0);
+            }
+          else /* not started yet */
+            {
+              return complete_irp(irp, STATUS_INVALID_DEVICE_STATE, 0);
+            }
+          
+        case IRP_MJ_CLOSE:
+          
+          if(!InterlockedDecrement(&dev->ref_count))
+            {
+              /* release all interfaces when the last handle is closed */
+              release_all_interfaces(dev);
+            }
+          return complete_irp(irp, STATUS_SUCCESS, 0);
+          
+        case IRP_MJ_CLEANUP:
+
+          return complete_irp(irp, STATUS_SUCCESS, 0);
+          
+        default:
+          return complete_irp(irp, STATUS_NOT_SUPPORTED, 0);
+        }
+    }
+  else /* the IRP is for the lower device object */
+    {
+      return pass_irp_down(dev, irp, NULL, NULL);
+    }
+}
+