From 22f703cab05b7cd368f4de9e03991b7664dc5022 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Mon, 1 Sep 2014 13:56:46 +0200
Subject: Initial import of argyll version 1.5.1-8

---
 usb/driver/dispatch.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 usb/driver/dispatch.c

(limited to 'usb/driver/dispatch.c')

diff --git a/usb/driver/dispatch.c b/usb/driver/dispatch.c
new file mode 100644
index 0000000..8eccb21
--- /dev/null
+++ b/usb/driver/dispatch.c
@@ -0,0 +1,99 @@
+/* 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;
+    IO_STACK_LOCATION *stack_location = IoGetCurrentIrpStackLocation(irp);
+
+    switch (stack_location->MajorFunction)
+    {
+    case IRP_MJ_PNP:
+        return dispatch_pnp(dev, irp);
+
+    case IRP_MJ_POWER:
+		// ID: 2960644 (farthen)
+		// You can't set the power state if the device is not handled at all
+		if(!dev->next_stack_device)
+		{
+			return complete_irp(irp, STATUS_INVALID_DEVICE_STATE, 0);
+		}
+        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 (stack_location->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)
+            {
+				// only one driver can act as power policy owner and 
+				// power_set_device_state() can only be issued by the PPO.
+				// disallow_power_control is set to true for drivers which 
+				// we know cause a BSOD on any attempt to request power irps.
+                if (dev->power_state.DeviceState != PowerDeviceD0 && !dev->disallow_power_control)
+                {
+                    /* 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:
+
+            /* release all interfaces bound to this file object */
+            release_all_interfaces(dev, stack_location->FileObject);
+            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);
+    }
+}
+
-- 
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