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 (PVOID Context)
VOID NTAPI	IntInterfaceDereference (PVOID Context)
VP_STATUS NTAPI	VideoPortQueryServices (IN PVOID HwDeviceExtension, IN VIDEO_PORT_SERVICES ServicesType, IN OUT 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

(

PVOID

Context

)

Definition at line 34 of file services.c.

{
   /* Do nothing */
}

Referenced by VideoPortQueryServices().

IntInterfaceReference()

VOID NTAPI IntInterfaceReference

(

PVOID

Context

)

Definition at line 28 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 96 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(VIDEO_PORT_AGP_SERVICES));
   return TRUE;
}

VideoPortQueryServices()

VP_STATUS NTAPI VideoPortQueryServices	(	IN PVOID	HwDeviceExtension,
		IN VIDEO_PORT_SERVICES	ServicesType,
		IN OUT PINTERFACE	Interface
	)

Definition at line 40 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))
         {
            VIDEO_PORT_INT10_INTERFACE *Int10Interface =
               (VIDEO_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().