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[ACPI]

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- Handle IRP_MN_CANCEL_REMOVE_DEVICE, IRP_MN_QUERY_REMOVE_DEVICE, and IRP_MN_REMOVE_DEVICE for child devices
- Fixes issues loading new drivers for ACPI-enumerated devices

svn path=/trunk/; revision=63349
This commit is contained in:
Cameron Gutman 2014-05-18 08:54:32 +00:00
parent 0a83347ad4
commit abcd548308
2 changed files with 37 additions and 0 deletions
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36
reactos/drivers/bus/acpi/buspdo.c
View file

@ -165,6 +165,42 @@ Bus_PDO_PnP (
}
status = STATUS_SUCCESS;// We must not fail this IRP.
break;
case IRP_MN_REMOVE_DEVICE:
//
// We handle REMOVE_DEVICE just like STOP_DEVICE. This is because
// the device is still physically present (or at least we don't know any better)
// so we have to retain the PDO after stopping and removing power from it.
//
if (DeviceData->InterfaceName.Length != 0)
IoSetDeviceInterfaceState(&DeviceData->InterfaceName, FALSE);
if (DeviceData->AcpiHandle && acpi_bus_power_manageable(DeviceData->AcpiHandle) &&
!ACPI_SUCCESS(acpi_bus_set_power(DeviceData->AcpiHandle, ACPI_STATE_D3)))
{
DPRINT1("Device %x failed to enter D3!\n", DeviceData->AcpiHandle);
state.DeviceState = PowerDeviceD3;
PoSetPowerState(DeviceData->Common.Self, DevicePowerState, state);
DeviceData->Common.DevicePowerState = PowerDeviceD3;
}
SET_NEW_PNP_STATE(DeviceData->Common, Stopped);
status = STATUS_SUCCESS;
break;
case IRP_MN_QUERY_REMOVE_DEVICE:
SET_NEW_PNP_STATE(DeviceData->Common, RemovalPending);
status = STATUS_SUCCESS;
break;
case IRP_MN_CANCEL_REMOVE_DEVICE:
if (RemovalPending == DeviceData->Common.DevicePnPState)
{
RESTORE_PREVIOUS_PNP_STATE(DeviceData->Common);
}
status = STATUS_SUCCESS;
break;
case IRP_MN_QUERY_CAPABILITIES:
//

1
reactos/drivers/bus/acpi/include/acpisys.h
View file

@ -13,6 +13,7 @@ typedef enum _DEVICE_PNP_STATE {
Started, // Device has received the START_DEVICE IRP
StopPending, // Device has received the QUERY_STOP IRP
Stopped, // Device has received the STOP_DEVICE IRP
RemovalPending, // Device has received the QUERY_REMOVE IRP
UnKnown // Unknown state
} DEVICE_PNP_STATE;