services.c File Reference

#include "videoprt.h"
#include <debug.h>

Include dependency graph for services.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
VOID NTAPI	IntInterfaceReference (_In_ PVOID Context)
VOID NTAPI	IntInterfaceDereference (_In_ PVOID Context)
VP_STATUS NTAPI	VideoPortQueryServices (_In_ PVOID HwDeviceExtension, _In_ VIDEO_PORT_SERVICES ServicesType, _Inout_ PINTERFACE Interface)
BOOLEAN NTAPI	VideoPortGetAgpServices (_In_ PVOID HwDeviceExtension, _Out_ PVIDEO_PORT_AGP_SERVICES AgpServices)

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 24 of file services.c.

Function Documentation

IntInterfaceDereference()

VOID NTAPI IntInterfaceDereference

(

_In_ PVOID

Context

)

Definition at line 37 of file services.c.

{
    /* Do nothing */
}

Referenced by VideoPortQueryServices().

IntInterfaceReference()

VOID NTAPI IntInterfaceReference

(

_In_ PVOID

Context

)

Definition at line 29 of file services.c.

{
    /* Do nothing */
}

Referenced by VideoPortQueryServices().

VideoPortGetAgpServices()

BOOLEAN NTAPI VideoPortGetAgpServices	(	_In_ PVOID	HwDeviceExtension,
		_Out_ PVIDEO_PORT_AGP_SERVICES	AgpServices
	)

Definition at line 102 of file services.c.

{
    VIDEO_PORT_AGP_INTERFACE Interface;
    VP_STATUS Status;
 
    TRACE_(VIDEOPRT, "VideoPortGetAgpServices\n");
 
    Interface.Size = sizeof(Interface);
    Interface.Version = VIDEO_PORT_AGP_INTERFACE_VERSION_1;
 
    Status = VideoPortQueryServices(HwDeviceExtension, VideoPortServicesAGP,
                                    (PINTERFACE)&Interface);
    if (Status != NO_ERROR)
    {
        WARN_(VIDEOPRT, "VideoPortQueryServices() failed!\n");
        return FALSE;
    }
 
    RtlCopyMemory(AgpServices, &Interface.AgpReservePhysical, sizeof(*AgpServices));
    return TRUE;
}

VideoPortQueryServices()

VP_STATUS NTAPI VideoPortQueryServices	(	_In_ PVOID	HwDeviceExtension,
		_In_ VIDEO_PORT_SERVICES	ServicesType,
		_Inout_ PINTERFACE	Interface
	)

Definition at line 45 of file services.c.

{
    TRACE_(VIDEOPRT, "VideoPortQueryServices - ServicesType: 0x%x\n", ServicesType);
 
    switch (ServicesType)
    {
        case VideoPortServicesInt10:
            if (Interface->Version >= VIDEO_PORT_INT10_INTERFACE_VERSION_1 ||
                Interface->Size >= sizeof(VIDEO_PORT_INT10_INTERFACE))
            {
                PVIDEO_PORT_INT10_INTERFACE Int10Interface =
                    (PVIDEO_PORT_INT10_INTERFACE)Interface;
 
                Interface->InterfaceReference = IntInterfaceReference;
                Interface->InterfaceDereference = IntInterfaceDereference;
                Int10Interface->Int10AllocateBuffer = IntInt10AllocateBuffer;
                Int10Interface->Int10FreeBuffer = IntInt10FreeBuffer;
                Int10Interface->Int10ReadMemory = IntInt10ReadMemory;
                Int10Interface->Int10WriteMemory = IntInt10WriteMemory;
                Int10Interface->Int10CallBios = IntInt10CallBios;
                return NO_ERROR;
            }
            break;
 
        case VideoPortServicesAGP:
            if ((Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2 &&
                 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE_2)) ||
                (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1 &&
                 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE)))
            {
                if (NT_SUCCESS(IntAgpGetInterface(HwDeviceExtension, Interface)))
                {
                    return NO_ERROR;
                }
            }
            break;
 
        case VideoPortServicesI2C:
            UNIMPLEMENTED;
            return ERROR_INVALID_FUNCTION;
 
        case VideoPortServicesHeadless:
            UNIMPLEMENTED;
            return ERROR_INVALID_FUNCTION;
 
        default:
            break;
    }
 
    return ERROR_INVALID_FUNCTION;
}

Referenced by InitializeModeTable(), VBEInitialize(), and VideoPortGetAgpServices().