mirror of
https://github.com/reactos/reactos.git
synced 2024-11-09 16:20:37 +00:00
358 lines
11 KiB
C
358 lines
11 KiB
C
/*
|
|
* PROJECT: ReactOS Kernel
|
|
* LICENSE: GPL - See COPYING in the top level directory
|
|
* FILE: drivers/battery/battc/battc.c
|
|
* PURPOSE: Battery Class Driver
|
|
* PROGRAMMERS: Cameron Gutman (cameron.gutman@reactos.org)
|
|
*/
|
|
|
|
#include <battc.h>
|
|
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
NTSTATUS
|
|
NTAPI
|
|
DriverEntry(PDRIVER_OBJECT DriverObject,
|
|
PUNICODE_STRING RegistryPath)
|
|
{
|
|
DPRINT("Battery class driver initialized\n");
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassUnload(PVOID ClassData)
|
|
{
|
|
PBATTERY_CLASS_DATA BattClass = ClassData;
|
|
|
|
DPRINT("Battery 0x%x is being unloaded\n");
|
|
|
|
if (BattClass->InterfaceName.Length != 0)
|
|
{
|
|
IoSetDeviceInterfaceState(&BattClass->InterfaceName, FALSE);
|
|
RtlFreeUnicodeString(&BattClass->InterfaceName);
|
|
}
|
|
|
|
ExFreePoolWithTag(BattClass,
|
|
BATTERY_CLASS_DATA_TAG);
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassSystemControl(PVOID ClassData,
|
|
PVOID WmiLibContext,
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp,
|
|
PVOID Disposition)
|
|
{
|
|
UNIMPLEMENTED
|
|
|
|
return STATUS_WMI_GUID_NOT_FOUND;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassQueryWmiDataBlock(PVOID ClassData,
|
|
PDEVICE_OBJECT DeviceObject,
|
|
PIRP Irp,
|
|
ULONG GuidIndex,
|
|
PULONG InstanceLengthArray,
|
|
ULONG OutBufferSize,
|
|
PUCHAR Buffer)
|
|
{
|
|
UNIMPLEMENTED
|
|
|
|
return STATUS_WMI_GUID_NOT_FOUND;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassStatusNotify(PVOID ClassData)
|
|
{
|
|
PBATTERY_CLASS_DATA BattClass = ClassData;
|
|
PBATTERY_WAIT_STATUS BattWait = BattClass->EventTriggerContext;
|
|
BATTERY_STATUS BattStatus;
|
|
NTSTATUS Status;
|
|
|
|
DPRINT("Received battery status notification from 0x%x\n", ClassData);
|
|
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
if (!BattClass->Waiting)
|
|
{
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
switch (BattClass->EventTrigger)
|
|
{
|
|
case EVENT_BATTERY_TAG:
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
DPRINT1("Waiting for battery is UNIMPLEMENTED!\n");
|
|
break;
|
|
|
|
case EVENT_BATTERY_STATUS:
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
Status = BattClass->MiniportInfo.QueryStatus(BattClass->MiniportInfo.Context,
|
|
BattWait->BatteryTag,
|
|
&BattStatus);
|
|
if (!NT_SUCCESS(Status))
|
|
return Status;
|
|
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
|
|
if (!(BattWait->PowerState & BattStatus.PowerState) ||
|
|
(BattWait->HighCapacity > BattStatus.Capacity) ||
|
|
(BattWait->LowCapacity < BattStatus.Capacity))
|
|
{
|
|
KeSetEvent(&BattClass->WaitEvent, IO_NO_INCREMENT, FALSE);
|
|
}
|
|
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
break;
|
|
|
|
default:
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
ASSERT(FALSE);
|
|
break;
|
|
}
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassInitializeDevice(PBATTERY_MINIPORT_INFO MiniportInfo,
|
|
PVOID *ClassData)
|
|
{
|
|
NTSTATUS Status;
|
|
PBATTERY_CLASS_DATA BattClass = ExAllocatePoolWithTag(NonPagedPool,
|
|
sizeof(BATTERY_CLASS_DATA),
|
|
BATTERY_CLASS_DATA_TAG);
|
|
|
|
if (!BattClass)
|
|
return STATUS_INSUFFICIENT_RESOURCES;
|
|
|
|
RtlZeroMemory(BattClass, sizeof(BATTERY_CLASS_DATA));
|
|
|
|
RtlCopyMemory(&BattClass->MiniportInfo,
|
|
MiniportInfo,
|
|
sizeof(BattClass->MiniportInfo));
|
|
|
|
KeInitializeEvent(&BattClass->WaitEvent, SynchronizationEvent, FALSE);
|
|
|
|
ExInitializeFastMutex(&BattClass->Mutex);
|
|
|
|
Status = IoRegisterDeviceInterface(MiniportInfo->Pdo,
|
|
&GUID_DEVICE_BATTERY,
|
|
NULL,
|
|
&BattClass->InterfaceName);
|
|
if (NT_SUCCESS(Status))
|
|
{
|
|
DPRINT("Initialized battery interface: %wZ\n", &BattClass->InterfaceName);
|
|
IoSetDeviceInterfaceState(&BattClass->InterfaceName, TRUE);
|
|
}
|
|
else
|
|
{
|
|
DPRINT1("IoRegisterDeviceInterface failed (0x%x)\n", Status);
|
|
}
|
|
|
|
*ClassData = BattClass;
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
BCLASSAPI
|
|
NTSTATUS
|
|
NTAPI
|
|
BatteryClassIoctl(PVOID ClassData,
|
|
PIRP Irp)
|
|
{
|
|
PBATTERY_CLASS_DATA BattClass = ClassData;
|
|
PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation(Irp);
|
|
NTSTATUS Status;
|
|
ULONG WaitTime;
|
|
PBATTERY_WAIT_STATUS BattWait;
|
|
PBATTERY_QUERY_INFORMATION BattQueryInfo;
|
|
PBATTERY_SET_INFORMATION BattSetInfo;
|
|
LARGE_INTEGER Timeout;
|
|
PBATTERY_STATUS BattStatus;
|
|
BATTERY_NOTIFY BattNotify;
|
|
ULONG ReturnedLength;
|
|
|
|
Irp->IoStatus.Information = 0;
|
|
|
|
DPRINT("Received IOCTL %x for 0x%x\n", IrpSp->Parameters.DeviceIoControl.IoControlCode,
|
|
ClassData);
|
|
|
|
switch (IrpSp->Parameters.DeviceIoControl.IoControlCode)
|
|
{
|
|
case IOCTL_BATTERY_QUERY_TAG:
|
|
if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(ULONG) ||
|
|
IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(ULONG))
|
|
{
|
|
Status = STATUS_BUFFER_TOO_SMALL;
|
|
break;
|
|
}
|
|
|
|
WaitTime = *(PULONG)Irp->AssociatedIrp.SystemBuffer;
|
|
|
|
Timeout.QuadPart = Int32x32To64(WaitTime, -1000);
|
|
|
|
Status = BattClass->MiniportInfo.QueryTag(BattClass->MiniportInfo.Context,
|
|
(PULONG)Irp->AssociatedIrp.SystemBuffer);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
BattClass->EventTrigger = EVENT_BATTERY_TAG;
|
|
BattClass->Waiting = TRUE;
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
|
|
Status = KeWaitForSingleObject(&BattClass->WaitEvent,
|
|
Executive,
|
|
KernelMode,
|
|
FALSE,
|
|
WaitTime != -1 ? &Timeout : NULL);
|
|
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
BattClass->Waiting = FALSE;
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
|
|
if (Status == STATUS_SUCCESS)
|
|
{
|
|
Status = BattClass->MiniportInfo.QueryTag(BattClass->MiniportInfo.Context,
|
|
(PULONG)Irp->AssociatedIrp.SystemBuffer);
|
|
if (NT_SUCCESS(Status))
|
|
Irp->IoStatus.Information = sizeof(ULONG);
|
|
}
|
|
else
|
|
{
|
|
Status = STATUS_NO_SUCH_DEVICE;
|
|
}
|
|
}
|
|
else
|
|
Irp->IoStatus.Information = sizeof(ULONG);
|
|
break;
|
|
|
|
case IOCTL_BATTERY_QUERY_STATUS:
|
|
if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(*BattWait) ||
|
|
IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(BATTERY_STATUS))
|
|
{
|
|
Status = STATUS_BUFFER_TOO_SMALL;
|
|
break;
|
|
}
|
|
|
|
BattWait = Irp->AssociatedIrp.SystemBuffer;
|
|
|
|
Timeout.QuadPart = Int32x32To64(BattWait->Timeout, -1000);
|
|
|
|
Status = BattClass->MiniportInfo.QueryStatus(BattClass->MiniportInfo.Context,
|
|
BattWait->BatteryTag,
|
|
(PBATTERY_STATUS)Irp->AssociatedIrp.SystemBuffer);
|
|
|
|
BattStatus = Irp->AssociatedIrp.SystemBuffer;
|
|
|
|
if (!NT_SUCCESS(Status) ||
|
|
((BattWait->PowerState & BattStatus->PowerState) &&
|
|
(BattWait->HighCapacity <= BattStatus->Capacity) &&
|
|
(BattWait->LowCapacity >= BattStatus->Capacity)))
|
|
{
|
|
BattNotify.PowerState = BattWait->PowerState;
|
|
BattNotify.HighCapacity = BattWait->HighCapacity;
|
|
BattNotify.LowCapacity = BattWait->LowCapacity;
|
|
|
|
BattClass->MiniportInfo.SetStatusNotify(BattClass->MiniportInfo.Context,
|
|
BattWait->BatteryTag,
|
|
&BattNotify);
|
|
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
BattClass->EventTrigger = EVENT_BATTERY_STATUS;
|
|
BattClass->EventTriggerContext = BattWait;
|
|
BattClass->Waiting = TRUE;
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
|
|
Status = KeWaitForSingleObject(&BattClass->WaitEvent,
|
|
Executive,
|
|
KernelMode,
|
|
FALSE,
|
|
BattWait->Timeout != -1 ? &Timeout : NULL);
|
|
|
|
ExAcquireFastMutex(&BattClass->Mutex);
|
|
BattClass->Waiting = FALSE;
|
|
ExReleaseFastMutex(&BattClass->Mutex);
|
|
|
|
BattClass->MiniportInfo.DisableStatusNotify(BattClass->MiniportInfo.Context);
|
|
|
|
if (Status == STATUS_SUCCESS)
|
|
{
|
|
Status = BattClass->MiniportInfo.QueryStatus(BattClass->MiniportInfo.Context,
|
|
BattWait->BatteryTag,
|
|
(PBATTERY_STATUS)Irp->AssociatedIrp.SystemBuffer);
|
|
if (NT_SUCCESS(Status))
|
|
Irp->IoStatus.Information = sizeof(ULONG);
|
|
}
|
|
else
|
|
{
|
|
Status = STATUS_NO_SUCH_DEVICE;
|
|
}
|
|
}
|
|
else
|
|
Irp->IoStatus.Information = sizeof(BATTERY_STATUS);
|
|
break;
|
|
|
|
case IOCTL_BATTERY_QUERY_INFORMATION:
|
|
if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(*BattQueryInfo))
|
|
{
|
|
Status = STATUS_BUFFER_TOO_SMALL;
|
|
break;
|
|
}
|
|
|
|
BattQueryInfo = Irp->AssociatedIrp.SystemBuffer;
|
|
|
|
Status = BattClass->MiniportInfo.QueryInformation(BattClass->MiniportInfo.Context,
|
|
BattQueryInfo->BatteryTag,
|
|
BattQueryInfo->InformationLevel,
|
|
BattQueryInfo->AtRate,
|
|
Irp->AssociatedIrp.SystemBuffer,
|
|
IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
|
|
&ReturnedLength);
|
|
Irp->IoStatus.Information = ReturnedLength;
|
|
if (!NT_SUCCESS(Status))
|
|
DPRINT1("QueryInformation failed (0x%x)\n", Status);
|
|
break;
|
|
case IOCTL_BATTERY_SET_INFORMATION:
|
|
if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(*BattSetInfo))
|
|
{
|
|
Status = STATUS_BUFFER_TOO_SMALL;
|
|
break;
|
|
}
|
|
|
|
BattSetInfo = Irp->AssociatedIrp.SystemBuffer;
|
|
|
|
Status = BattClass->MiniportInfo.SetInformation(BattClass->MiniportInfo.Context,
|
|
BattSetInfo->BatteryTag,
|
|
BattSetInfo->InformationLevel,
|
|
BattSetInfo->Buffer);
|
|
if (!NT_SUCCESS(Status))
|
|
DPRINT1("SetInformation failed (0x%x)\n", Status);
|
|
break;
|
|
|
|
default:
|
|
DPRINT1("Received unsupported IRP %x\n", IrpSp->Parameters.DeviceIoControl.IoControlCode);
|
|
/* Do NOT complete the irp */
|
|
return STATUS_NOT_SUPPORTED;
|
|
}
|
|
|
|
Irp->IoStatus.Status = Status;
|
|
IoCompleteRequest(Irp, IO_NO_INCREMENT);
|
|
|
|
return Status;
|
|
}
|