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reactos/drivers/bus/acpi/cmbatt/cmexec.c

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/*
* PROJECT: ReactOS ACPI-Compliant Control Method Battery
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: boot/drivers/bus/acpi/cmbatt/cmexec.c
* PURPOSE: ACPI Method Execution/Evaluation Glue
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include "cmbatt.h"
#include <acpiioct.h>
#include <debug.h>
/* FUNCTIONS ******************************************************************/
NTSTATUS
NTAPI
GetDwordElement(IN PACPI_METHOD_ARGUMENT Argument,
OUT PULONG Value)
{
NTSTATUS Status;
/* Must have an integer */
if (Argument->Type != ACPI_METHOD_ARGUMENT_INTEGER)
{
/* Not an integer, fail */
Status = STATUS_ACPI_INVALID_DATA;
if (CmBattDebug & 0x4C)
DbgPrint("GetDwordElement: Object contained wrong data type - %d\n",
Argument->Type);
}
else
{
/* Read the integer value */
*Value = Argument->Argument;
Status = STATUS_SUCCESS;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
GetStringElement(IN PACPI_METHOD_ARGUMENT Argument,
OUT PCHAR Value)
{
NTSTATUS Status;
/* Must have a string of buffer */
if ((Argument->Type == ACPI_METHOD_ARGUMENT_STRING) ||
(Argument->Type == ACPI_METHOD_ARGUMENT_BUFFER))
{
/* String must be less than 256 characters */
if (Argument->DataLength < 256)
{
/* Copy the buffer */
RtlCopyMemory(Value, Argument->Data, Argument->DataLength);
Status = STATUS_SUCCESS;
}
else
{
/* The buffer is too small (the string is too large) */
Status = STATUS_BUFFER_TOO_SMALL;
if (CmBattDebug & 0x4C)
DbgPrint("GetStringElement: return buffer not big enough - %d\n", Argument->DataLength);
}
}
else
{
/* Not valid string data */
Status = STATUS_ACPI_INVALID_DATA;
if (CmBattDebug & 0x4C)
DbgPrint("GetStringElement: Object contained wrong data type - %d\n", Argument->Type);
}
/* Return the status */
return Status;
}
NTSTATUS
NTAPI
CmBattSendDownStreamIrp(IN PDEVICE_OBJECT DeviceObject,
IN ULONG IoControlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferLength,
IN PACPI_EVAL_OUTPUT_BUFFER OutputBuffer,
IN ULONG OutputBufferLength)
{
PIRP Irp;
NTSTATUS Status;
KEVENT Event;
IO_STATUS_BLOCK IoStatusBlock;
PAGED_CODE();
/* Initialize our wait event */
KeInitializeEvent(&Event, SynchronizationEvent, 0);
/* Allocate the IRP */
Irp = IoBuildDeviceIoControlRequest(IoControlCode,
DeviceObject,
InputBuffer,
InputBufferLength,
OutputBuffer,
OutputBufferLength,
0,
&Event,
&IoStatusBlock);
if (!Irp)
{
/* No IRP, fail */
if (CmBattDebug & 0x4C)
DbgPrint("CmBattSendDownStreamIrp: Failed to allocate Irp\n");
return STATUS_INSUFFICIENT_RESOURCES;
}
/* Call ACPI */
if (CmBattDebug & 0x40)
DbgPrint("CmBattSendDownStreamIrp: Irp %x [Tid] %x\n",
Irp, KeGetCurrentThread());
Status = IoCallDriver(DeviceObject, Irp);
if (Status == STATUS_PENDING)
{
/* Wait for completion */
KeWaitForSingleObject(&Event,
Executive,
KernelMode,
FALSE,
NULL);
Status = Irp->IoStatus.Status;
}
/* Check if caller wanted output */
if (OutputBuffer)
{
/* Make sure it's valid ACPI output buffer */
if ((OutputBuffer->Signature != ACPI_EVAL_OUTPUT_BUFFER_SIGNATURE) ||
!(OutputBuffer->Count))
{
/* It isn't, so set failure code */
Status = STATUS_ACPI_INVALID_DATA;
}
}
/* Return status */
if (CmBattDebug & 0x40)
DbgPrint("CmBattSendDownStreamIrp: Irp %x completed %x! [Tid] %x\n",
Irp, Status, KeGetCurrentThread());
return Status;
}
NTSTATUS
NTAPI
CmBattGetPsrData(IN PDEVICE_OBJECT DeviceObject,
OUT PULONG PsrData)
{
NTSTATUS Status;
ACPI_EVAL_OUTPUT_BUFFER OutputBuffer;
ACPI_EVAL_INPUT_BUFFER InputBuffer;
PAGED_CODE();
if (CmBattDebug & 0x40)
DbgPrint("CmBattGetPsrData: Entered with Pdo %x Tid %x\n",
DeviceObject, KeGetCurrentThread());
/* Initialize to zero */
ASSERT(PsrData != NULL);
*PsrData = 0;
/* Request the _PSR method */
*(PULONG)InputBuffer.MethodName = 'RSP_';
InputBuffer.Signature = ACPI_EVAL_INPUT_BUFFER_SIGNATURE;
/* Send it to ACPI */
Status = CmBattSendDownStreamIrp(DeviceObject,
IOCTL_ACPI_EVAL_METHOD,
&InputBuffer,
sizeof(InputBuffer),
&OutputBuffer,
sizeof(OutputBuffer));
if (NT_SUCCESS(Status))
{
/* Read the result */
Status = GetDwordElement(OutputBuffer.Argument, PsrData);
if (CmBattDebug & 0x440)
DbgPrint("CmBattGetPsrData: _PSR method returned %x \n", *PsrData);
}
else if (CmBattDebug & 0x44C)
{
/* Failure */
DbgPrint("CmBattGetPsrData: Failed _PSR method - Status (0x%x)\n", Status);
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
CmBattGetStaData(IN PDEVICE_OBJECT DeviceObject,
OUT PULONG StaData)
{
NTSTATUS Status;
ACPI_EVAL_OUTPUT_BUFFER OutputBuffer;
ACPI_EVAL_INPUT_BUFFER InputBuffer;
PAGED_CODE();
if (CmBattDebug & 0x40)
DbgPrint("CmBattGetStaData: Entered with Pdo %x Tid %x\n",
DeviceObject, KeGetCurrentThread());
/* Initialize to zero */
ASSERT(StaData != NULL);
*StaData = 0;
/* Request the _PSR method */
*(PULONG)InputBuffer.MethodName = 'ATS_';
InputBuffer.Signature = ACPI_EVAL_INPUT_BUFFER_SIGNATURE;
/* Send it to ACPI */
Status = CmBattSendDownStreamIrp(DeviceObject,
IOCTL_ACPI_EVAL_METHOD,
&InputBuffer,
sizeof(InputBuffer),
&OutputBuffer,
sizeof(OutputBuffer));
if (NT_SUCCESS(Status))
{
/* Read the result */
Status = GetDwordElement(OutputBuffer.Argument, StaData);
if (CmBattDebug & 0x440)
DbgPrint("CmBattGetStaData: _STA method returned %x \n", *StaData);
}
else if (CmBattDebug & 0x44C)
{
/* Failure */
DbgPrint("CmBattGetStaData: Failed _STA method - Status (0x%x)\n", Status);
Status = STATUS_NO_SUCH_DEVICE;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
CmBattGetUniqueId(IN PDEVICE_OBJECT DeviceObject,
OUT PULONG UniqueId)
{
NTSTATUS Status;
ACPI_EVAL_OUTPUT_BUFFER OutputBuffer;
ACPI_EVAL_INPUT_BUFFER InputBuffer;
PAGED_CODE();
if (CmBattDebug & 0x40)
DbgPrint("CmBattGetUniqueId: Entered with Pdo %x Tid %x\n",
DeviceObject, KeGetCurrentThread());
/* Initialize to zero */
ASSERT(UniqueId != NULL);
*UniqueId = 0;
/* Request the _PSR method */
*(PULONG)InputBuffer.MethodName = 'DIU_';
InputBuffer.Signature = ACPI_EVAL_INPUT_BUFFER_SIGNATURE;
/* Send it to ACPI */
Status = CmBattSendDownStreamIrp(DeviceObject,
IOCTL_ACPI_EVAL_METHOD,
&InputBuffer,
sizeof(InputBuffer),
&OutputBuffer,
sizeof(OutputBuffer));
if (NT_SUCCESS(Status))
{
/* Read the result */
Status = GetDwordElement(OutputBuffer.Argument, UniqueId);
if (CmBattDebug & 0x440)
DbgPrint("CmBattGetUniqueId: _UID method returned %x \n", *UniqueId);
}
else if (CmBattDebug & 0x44C)
{
/* Failure */
DbgPrint("CmBattGetUniqueId: Failed _UID method - Status (0x%x)\n", Status);
Status = STATUS_NO_SUCH_DEVICE;
}
/* Return status */
return Status;
}
NTSTATUS
NTAPI
CmBattSetTripPpoint(IN PCMBATT_DEVICE_EXTENSION DeviceExtension,
IN ULONG AlarmValue)
{
NTSTATUS Status;
ACPI_EVAL_INPUT_BUFFER_SIMPLE_INTEGER InputBuffer;
PAGED_CODE();
if (CmBattDebug & 0x440)
DbgPrint("CmBattSetTripPpoint: _BTP Alarm Value %x Device %x Tid %x\n",
AlarmValue, DeviceExtension->DeviceId, KeGetCurrentThread);
/* Request the _BTP method */
*(PULONG)InputBuffer.MethodName = 'PTB_';
InputBuffer.Signature = ACPI_EVAL_INPUT_BUFFER_SIMPLE_INTEGER_SIGNATURE;
InputBuffer.IntegerArgument = AlarmValue;
/* Send it to ACPI */
Status = CmBattSendDownStreamIrp(DeviceExtension->AttachedDevice,
IOCTL_ACPI_EVAL_METHOD,
&InputBuffer,
sizeof(InputBuffer),
NULL,
0);
if (!(NT_SUCCESS(Status)) && (CmBattDebug & 0x440))
DbgPrint("CmBattSetTripPpoint: Failed _BTP method on device %x - Status (0x%x)\n",
DeviceExtension->DeviceId, Status);
/* Return status */
return Status;
}
NTSTATUS
NTAPI
CmBattGetBifData(PCMBATT_DEVICE_EXTENSION DeviceExtension,
PACPI_BIF_DATA BifData)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
NTSTATUS
NTAPI
CmBattGetBstData(PCMBATT_DEVICE_EXTENSION DeviceExtension,
PACPI_BST_DATA BstData)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
/* EOF */
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