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/* 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"
static NTSTATUS DDKAPI
on_start_complete(DEVICE_OBJECT *device_object, IRP *irp,
void *context);
static NTSTATUS DDKAPI
on_device_usage_notification_complete(DEVICE_OBJECT *device_object,
IRP *irp, void *context);
static NTSTATUS DDKAPI
on_query_capabilities_complete(DEVICE_OBJECT *device_object,
IRP *irp, void *context);
NTSTATUS dispatch_pnp(libusb_device_t *dev, IRP *irp)
{
NTSTATUS status = STATUS_SUCCESS;
IO_STACK_LOCATION *stack_location = IoGetCurrentIrpStackLocation(irp);
UNICODE_STRING symbolic_link_name;
WCHAR tmp_name[128];
status = remove_lock_acquire(dev);
if(!NT_SUCCESS(status))
{
return complete_irp(irp, status, 0);
}
DEBUG_PRINT_NL();
switch(stack_location->MinorFunction)
{
case IRP_MN_REMOVE_DEVICE:
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_REMOVE_DEVICE");
dev->is_started = FALSE;
/* wait until all outstanding requests are finished */
remove_lock_release_and_wait(dev);
status = pass_irp_down(dev, irp, NULL, NULL);
DEBUG_MESSAGE("dispatch_pnp(): deleting device #%d", dev->id);
_snwprintf(tmp_name, sizeof(tmp_name)/sizeof(WCHAR), L"%s%04d",
LIBUSB0_SYMBOLIC_LINK_NAME, dev->id);
/* delete the symbolic link */
RtlInitUnicodeString(&symbolic_link_name, tmp_name);
IoDeleteSymbolicLink(&symbolic_link_name);
/* delete the device object */
IoDetachDevice(dev->next_stack_device);
IoDeleteDevice(dev->self);
return status;
case IRP_MN_SURPRISE_REMOVAL:
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_SURPRISE_REMOVAL");
dev->is_started = FALSE;
break;
case IRP_MN_START_DEVICE:
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_START_DEVICE");
if(!NT_SUCCESS(set_configuration(dev, 1, 1000)))
{
DEBUG_ERROR("dispatch_pnp(): IRP_MN_START_DEVICE: selecting "
"configuration failed");
}
/* report device state to Power Manager */
/* power_state.DeviceState has been set to D0 by add_device() */
PoSetPowerState(dev->self, DevicePowerState, dev->power_state);
return pass_irp_down(dev, irp, on_start_complete, NULL);
case IRP_MN_STOP_DEVICE:
dev->is_started = FALSE;
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_STOP_DEVICE");
break;
case IRP_MN_DEVICE_USAGE_NOTIFICATION:
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_DEVICE_USAGE_NOTIFICATION");
if(!dev->self->AttachedDevice
|| (dev->self->AttachedDevice->Flags & DO_POWER_PAGABLE))
{
dev->self->Flags |= DO_POWER_PAGABLE;
}
return pass_irp_down(dev, irp, on_device_usage_notification_complete,
NULL);
case IRP_MN_QUERY_CAPABILITIES:
DEBUG_MESSAGE("dispatch_pnp(): IRP_MN_QUERY_CAPABILITIES");
if(!dev->is_filter)
{
/* apply registry setting */
stack_location->Parameters.DeviceCapabilities.Capabilities
->SurpriseRemovalOK = dev->surprise_removal_ok;
}
return pass_irp_down(dev, irp, on_query_capabilities_complete, NULL);
default:
;
}
remove_lock_release(dev);
return pass_irp_down(dev, irp, NULL, NULL);
}
static NTSTATUS DDKAPI
on_start_complete(DEVICE_OBJECT *device_object, IRP *irp, void *context)
{
libusb_device_t *dev = device_object->DeviceExtension;
if(irp->PendingReturned)
{
IoMarkIrpPending(irp);
}
if(dev->next_stack_device->Characteristics & FILE_REMOVABLE_MEDIA)
{
device_object->Characteristics |= FILE_REMOVABLE_MEDIA;
}
dev->is_started = TRUE;
remove_lock_release(dev);
return STATUS_SUCCESS;
}
static NTSTATUS DDKAPI
on_device_usage_notification_complete(DEVICE_OBJECT *device_object,
IRP *irp, void *context)
{
libusb_device_t *dev = device_object->DeviceExtension;
if(irp->PendingReturned)
{
IoMarkIrpPending(irp);
}
if(!(dev->next_stack_device->Flags & DO_POWER_PAGABLE))
{
device_object->Flags &= ~DO_POWER_PAGABLE;
}
remove_lock_release(dev);
return STATUS_SUCCESS;
}
static NTSTATUS DDKAPI
on_query_capabilities_complete(DEVICE_OBJECT *device_object,
IRP *irp, void *context)
{
libusb_device_t *dev = device_object->DeviceExtension;
IO_STACK_LOCATION *stack_location = IoGetCurrentIrpStackLocation(irp);
if(irp->PendingReturned)
{
IoMarkIrpPending(irp);
}
if(NT_SUCCESS(irp->IoStatus.Status))
{
if(!dev->is_filter)
{
/* apply registry setting */
stack_location->Parameters.DeviceCapabilities.Capabilities
->SurpriseRemovalOK = dev->surprise_removal_ok;
}
/* save supported device power states */
memcpy(dev->device_power_states, stack_location
->Parameters.DeviceCapabilities.Capabilities->DeviceState,
sizeof(dev->device_power_states));
}
remove_lock_release(dev);
return STATUS_SUCCESS;
}
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