VideoPortInt10

VP_STATUS NTAPI VideoPortInt10	(	IN PVOID	HwDeviceExtension,
		IN PVIDEO_X86_BIOS_ARGUMENTS	BiosArguments
	)

Definition at line 203 of file int10.c.

Referenced by VbeSetMode().

{
#if defined(_M_IX86)
    CONTEXT BiosContext;
    NTSTATUS Status;
    PKPROCESS CallingProcess = (PKPROCESS)PsGetCurrentProcess();
    KAPC_STATE ApcState;

    if (!CsrssInitialized)
    {
       return ERROR_INVALID_PARAMETER;
    }

    /* Attach to CSRSS */
    IntAttachToCSRSS(&CallingProcess, &ApcState);

    /* Clear the context */
    RtlZeroMemory(&BiosContext, sizeof(CONTEXT));

    /* Fill out the bios arguments */
    BiosContext.Eax = BiosArguments->Eax;
    BiosContext.Ebx = BiosArguments->Ebx;
    BiosContext.Ecx = BiosArguments->Ecx;
    BiosContext.Edx = BiosArguments->Edx;
    BiosContext.Esi = BiosArguments->Esi;
    BiosContext.Edi = BiosArguments->Edi;
    BiosContext.Ebp = BiosArguments->Ebp;

    /* Do the ROM BIOS call */
    Status = Ke386CallBios(0x10, &BiosContext);

    /* Return the arguments */
    BiosArguments->Eax = BiosContext.Eax;
    BiosArguments->Ebx = BiosContext.Ebx;
    BiosArguments->Ecx = BiosContext.Ecx;
    BiosArguments->Edx = BiosContext.Edx;
    BiosArguments->Esi = BiosContext.Esi;
    BiosArguments->Edi = BiosContext.Edi;
    BiosArguments->Ebp = BiosContext.Ebp;

    /* Detach from CSRSS */
    IntDetachFromCSRSS(&CallingProcess, &ApcState);
    if (NT_SUCCESS(Status)) return NO_ERROR;
    return ERROR_INVALID_PARAMETER;
#else
    /* Not implemented for anything else than X86*/
    DPRINT1("Int10 not available on non-x86!\n");
    return ERROR_INVALID_FUNCTION;
#endif
}

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