#include "cmbatt.h"
#include <acpiioct.h>
#include <debug.h>

Include dependency graph for cmexec.c:

Functions
NTSTATUS NTAPI	GetDwordElement (IN PACPI_METHOD_ARGUMENT Argument, OUT PULONG Value)

NTSTATUS NTAPI	GetStringElement (IN PACPI_METHOD_ARGUMENT Argument, OUT PCHAR Value)

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)

NTSTATUS NTAPI	CmBattGetPsrData (IN PDEVICE_OBJECT DeviceObject, OUT PULONG PsrData)

NTSTATUS NTAPI	CmBattGetStaData (IN PDEVICE_OBJECT DeviceObject, OUT PULONG StaData)

NTSTATUS NTAPI	CmBattGetUniqueId (IN PDEVICE_OBJECT DeviceObject, OUT PULONG UniqueId)

NTSTATUS NTAPI	CmBattSetTripPpoint (IN PCMBATT_DEVICE_EXTENSION DeviceExtension, IN ULONG AlarmValue)

NTSTATUS NTAPI	CmBattGetBifData (PCMBATT_DEVICE_EXTENSION DeviceExtension, PACPI_BIF_DATA BifData)

NTSTATUS NTAPI	CmBattGetBstData (PCMBATT_DEVICE_EXTENSION DeviceExtension, PACPI_BST_DATA BstData)

Function Documentation

◆ CmBattGetBifData()

NTSTATUS NTAPI CmBattGetBifData	(	PCMBATT_DEVICE_EXTENSION	DeviceExtension,
		PACPI_BIF_DATA	BifData
	)

Definition at line 325 of file cmexec.c.

{
    UNIMPLEMENTED;
    return STATUS_NOT_IMPLEMENTED;
}

Referenced by CmBattIoctl().

◆ CmBattGetBstData()

NTSTATUS NTAPI CmBattGetBstData	(	PCMBATT_DEVICE_EXTENSION	DeviceExtension,
		PACPI_BST_DATA	BstData
	)

Definition at line 334 of file cmexec.c.

{
    UNIMPLEMENTED;
    return STATUS_NOT_IMPLEMENTED;
}

Referenced by CmBattGetBatteryStatus(), CmBattIoctl(), and CmBattSetStatusNotify().

◆ CmBattGetPsrData()

NTSTATUS NTAPI CmBattGetPsrData	(	IN PDEVICE_OBJECT	DeviceObject,
		OUT PULONG	PsrData
	)

Definition at line 156 of file cmexec.c.

{
    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;
}

◆ CmBattGetStaData()

NTSTATUS NTAPI CmBattGetStaData	(	IN PDEVICE_OBJECT	DeviceObject,
		OUT PULONG	StaData
	)

Definition at line 201 of file cmexec.c.

{
    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;
}

◆ CmBattGetUniqueId()

NTSTATUS NTAPI CmBattGetUniqueId	(	IN PDEVICE_OBJECT	DeviceObject,
		OUT PULONG	UniqueId
	)

Definition at line 247 of file cmexec.c.

{
    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;
}

◆ CmBattSendDownStreamIrp()

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
	)

Definition at line 85 of file cmexec.c.

{
    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;
}

Referenced by CmBattGetPsrData(), CmBattGetStaData(), CmBattGetUniqueId(), and CmBattSetTripPpoint().

◆ CmBattSetTripPpoint()

NTSTATUS NTAPI CmBattSetTripPpoint	(	IN PCMBATT_DEVICE_EXTENSION	DeviceExtension,
		IN ULONG	AlarmValue
	)

Definition at line 293 of file cmexec.c.

{
    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;
}

◆ GetDwordElement()

NTSTATUS NTAPI GetDwordElement	(	IN PACPI_METHOD_ARGUMENT	Argument,
		OUT PULONG	Value
	)

Definition at line 20 of file cmexec.c.

{
    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;
}

Referenced by CmBattGetPsrData(), CmBattGetStaData(), and CmBattGetUniqueId().

◆ GetStringElement()

NTSTATUS NTAPI GetStringElement	(	IN PACPI_METHOD_ARGUMENT	Argument,
		OUT PCHAR	Value
	)

Definition at line 47 of file cmexec.c.

{
    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;
}

Functions