[mirror_edk2.git] / IntelFrameworkModulePkg / Bus / Pci / VgaMiniPortDxe / VgaMiniPort.c

/** @file\r
\r
Copyright (c) 2006 Intel Corporation. All rights reserved\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "VgaMiniPort.h"\r
\r
//\r
// EFI Driver Binding Protocol Instance\r
//\r
//   This driver has a version value of 0x00000000.  This is the\r
//   lowest possible priority for a driver.  This is done on purpose to help\r
//   the developers of UGA drivers.  This driver can bind if no UGA driver\r
//   is present, so a console is available.  Then, when a UGA driver is loaded\r
//   this driver can be disconnected, and the UGA driver can be connected.\r
//   As long as the UGA driver has a version value greater than 0x00000000, it\r
//   will be connected first and will block this driver from connecting.\r
//\r
EFI_DRIVER_BINDING_PROTOCOL gPciVgaMiniPortDriverBinding = {\r
  PciVgaMiniPortDriverBindingSupported,\r
  PciVgaMiniPortDriverBindingStart,\r
  PciVgaMiniPortDriverBindingStop,\r
  0x00000000,\r
  NULL,\r
  NULL\r
};\r
\r
/**\r
  Driver entry point for VgaMiniPort driver.\r
  \r
  @param ImageHandle  Driver image handle.\r
  @param SystemTable  Point to EFI_SYSTEM_TABLE.\r
  \r
  @retval Status of install driver binding protocol.\r
**/\r
EFI_STATUS\r
EFIAPI\r
PciVgaMiniPortDriverEntryPoint (\r
  IN EFI_HANDLE         ImageHandle,\r
  IN EFI_SYSTEM_TABLE   *SystemTable\r
  )\r
{\r
  return EfiLibInstallDriverBindingComponentName2 (\r
           ImageHandle,\r
           SystemTable,\r
           &gPciVgaMiniPortDriverBinding,\r
           ImageHandle,\r
           &gPciVgaMiniPortComponentName,\r
           &gPciVgaMiniPortComponentName2\r
           );\r
}\r
\r
\r
/**\r
  Supported.\r
\r
  (Standard DriverBinding Protocol Supported() function)\r
\r
  @param  This                   The driver binding protocol.\r
  @param  Controller             The controller handle to check.\r
  @param  RemainingDevicePath    The remaining device path.\r
\r
  @retval EFI_SUCCESS            The driver supports this controller.\r
  @retval EFI_UNSUPPORTED        This device isn't supported.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PciVgaMiniPortDriverBindingSupported (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                   Controller,\r
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath\r
  )\r
{\r
  EFI_STATUS          Status;\r
  EFI_PCI_IO_PROTOCOL *PciIo;\r
  PCI_TYPE00          Pci;\r
\r
  //\r
  // Open the IO Abstraction(s) needed to perform the supported test\r
  //\r
  Status = gBS->OpenProtocol (\r
                  Controller,\r
                  &gEfiPciIoProtocolGuid,\r
                  (VOID **) &PciIo,\r
                  This->DriverBindingHandle,\r
                  Controller,\r
                  EFI_OPEN_PROTOCOL_BY_DRIVER\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
  //\r
  // See if this is a PCI VGA Controller by looking at the Command register and\r
  // Class Code Register\r
  //\r
  Status = PciIo->Pci.Read (\r
                        PciIo,\r
                        EfiPciIoWidthUint32,\r
                        0,\r
                        sizeof (Pci) / sizeof (UINT32),\r
                        &Pci\r
                        );\r
  if (EFI_ERROR (Status)) {\r
    goto Done;\r
  }\r
\r
  Status = EFI_UNSUPPORTED;\r
  //\r
  // See if the device is an enabled VGA device.\r
  // Most systems can only have on VGA device on at a time.\r
  //\r
  if (((Pci.Hdr.Command & 0x03) == 0x03) && IS_PCI_VGA (&Pci)) {\r
    Status = EFI_SUCCESS;\r
  }\r
\r
Done:\r
  gBS->CloseProtocol (\r
        Controller,\r
        &gEfiPciIoProtocolGuid,\r
        This->DriverBindingHandle,\r
        Controller\r
        );\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  Install VGA Mini Port Protocol onto VGA device handles\r
\r
  (Standard DriverBinding Protocol Start() function)\r
\r
  @param  This                   The driver binding instance.\r
  @param  Controller             The controller to check.\r
  @param  RemainingDevicePath    The remaining device patch.\r
\r
  @retval EFI_SUCCESS            The controller is controlled by the driver.\r
  @retval EFI_ALREADY_STARTED    The controller is already controlled by the driver.\r
  @retval EFI_OUT_OF_RESOURCES   Failed to allocate resources.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PciVgaMiniPortDriverBindingStart (\r
  IN EFI_DRIVER_BINDING_PROTOCOL  *This,\r
  IN EFI_HANDLE                   Controller,\r
  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath\r
  )\r
{\r
  EFI_STATUS            Status;\r
  EFI_PCI_IO_PROTOCOL   *PciIo;\r
  PCI_VGA_MINI_PORT_DEV *PciVgaMiniPortPrivate;\r
\r
  PciVgaMiniPortPrivate = NULL;\r
  PciIo                 = NULL;\r
  //\r
  // Open the IO Abstraction(s) needed\r
  //\r
  Status = gBS->OpenProtocol (\r
                  Controller,\r
                  &gEfiPciIoProtocolGuid,\r
                  (VOID **) &PciIo,\r
                  This->DriverBindingHandle,\r
                  Controller,\r
                  EFI_OPEN_PROTOCOL_BY_DRIVER\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    goto Done;\r
  }\r
  //\r
  // Allocate the private device structure\r
  //\r
  Status = gBS->AllocatePool (\r
                  EfiBootServicesData,\r
                  sizeof (PCI_VGA_MINI_PORT_DEV),\r
                  (VOID **) &PciVgaMiniPortPrivate\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    goto Done;\r
  }\r
\r
  ZeroMem (PciVgaMiniPortPrivate, sizeof (PCI_VGA_MINI_PORT_DEV));\r
\r
  //\r
  // Initialize the private device structure\r
  //\r
  PciVgaMiniPortPrivate->Signature = PCI_VGA_MINI_PORT_DEV_SIGNATURE;\r
  PciVgaMiniPortPrivate->Handle = Controller;\r
  PciVgaMiniPortPrivate->PciIo = PciIo;\r
\r
  PciVgaMiniPortPrivate->VgaMiniPort.SetMode = PciVgaMiniPortSetMode;\r
  PciVgaMiniPortPrivate->VgaMiniPort.VgaMemoryOffset = 0xb8000;\r
  PciVgaMiniPortPrivate->VgaMiniPort.CrtcAddressRegisterOffset = 0x3d4;\r
  PciVgaMiniPortPrivate->VgaMiniPort.CrtcDataRegisterOffset = 0x3d5;\r
  PciVgaMiniPortPrivate->VgaMiniPort.VgaMemoryBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
  PciVgaMiniPortPrivate->VgaMiniPort.CrtcAddressRegisterBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
  PciVgaMiniPortPrivate->VgaMiniPort.CrtcDataRegisterBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
  PciVgaMiniPortPrivate->VgaMiniPort.MaxMode = 1;\r
\r
  //\r
  // Install Vga Mini Port Protocol\r
  //\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &Controller,\r
                  &gEfiVgaMiniPortProtocolGuid,\r
                  &PciVgaMiniPortPrivate->VgaMiniPort,\r
                  NULL\r
                  );\r
Done:\r
  if (EFI_ERROR (Status)) {\r
    gBS->CloseProtocol (\r
          Controller,\r
          &gEfiPciIoProtocolGuid,\r
          This->DriverBindingHandle,\r
          Controller\r
          );\r
    if (PciVgaMiniPortPrivate != NULL) {\r
      gBS->FreePool (PciVgaMiniPortPrivate);\r
    }\r
  }\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  Stop.\r
\r
  (Standard DriverBinding Protocol Stop() function)\r
\r
  @param  This                   The driver binding protocol.\r
  @param  Controller             The controller to release.\r
  @param  NumberOfChildren       The child number that opened controller\r
                                 BY_CHILD.\r
  @param  ChildHandleBuffer      The array of child handle.\r
\r
  @retval EFI_SUCCESS            The controller or children are stopped.\r
  @retval EFI_DEVICE_ERROR       Failed to stop the driver.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PciVgaMiniPortDriverBindingStop (\r
  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,\r
  IN  EFI_HANDLE                      Controller,\r
  IN  UINTN                           NumberOfChildren,\r
  IN  EFI_HANDLE                      *ChildHandleBuffer\r
  )\r
{\r
  EFI_STATUS                  Status;\r
  EFI_VGA_MINI_PORT_PROTOCOL  *VgaMiniPort;\r
  PCI_VGA_MINI_PORT_DEV       *PciVgaMiniPortPrivate;\r
\r
  Status = gBS->OpenProtocol (\r
                  Controller,\r
                  &gEfiVgaMiniPortProtocolGuid,\r
                  (VOID **) &VgaMiniPort,\r
                  This->DriverBindingHandle,\r
                  Controller,\r
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  PciVgaMiniPortPrivate = PCI_VGA_MINI_PORT_DEV_FROM_THIS (VgaMiniPort);\r
\r
  Status = gBS->UninstallProtocolInterface (\r
                  Controller,\r
                  &gEfiVgaMiniPortProtocolGuid,\r
                  &PciVgaMiniPortPrivate->VgaMiniPort\r
                  );\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
\r
  gBS->CloseProtocol (\r
        Controller,\r
        &gEfiPciIoProtocolGuid,\r
        This->DriverBindingHandle,\r
        Controller\r
        );\r
\r
  gBS->FreePool (PciVgaMiniPortPrivate);\r
\r
  return EFI_SUCCESS;\r
}\r
//\r
// VGA Mini Port Protocol Functions\r
//\r
\r
/**\r
  Thunk function of EFI_VGA_MINI_PORT_SET_MODE.\r
\r
  @param  This             Point to instance of EFI_VGA_MINI_PORT_PROTOCOL.\r
  @param  ModeNumber       Mode number.\r
\r
  @retval EFI_UNSUPPORTED  Invalid mode number.\r
  @retval EFI_SUCCESS      Success.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PciVgaMiniPortSetMode (\r
  IN  EFI_VGA_MINI_PORT_PROTOCOL  *This,\r
  IN  UINTN                       ModeNumber\r
  )\r
{\r
  if (ModeNumber > This->MaxMode) {\r
    return EFI_UNSUPPORTED;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
  \r
Commit	Line	Data
733f03aa	1	/** @file\r
	2	\r
	3	Copyright (c) 2006 Intel Corporation. All rights reserved\r
	4	This program and the accompanying materials\r
	5	are licensed and made available under the terms and conditions of the BSD License\r
	6	which accompanies this distribution. The full text of the license may be found at\r
	7	http://opensource.org/licenses/bsd-license.php\r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	\r
	12	**/\r
	13	\r
	14	#include "VgaMiniPort.h"\r
	15	\r
	16	//\r
	17	// EFI Driver Binding Protocol Instance\r
	18	//\r
	19	// This driver has a version value of 0x00000000. This is the\r
	20	// lowest possible priority for a driver. This is done on purpose to help\r
	21	// the developers of UGA drivers. This driver can bind if no UGA driver\r
	22	// is present, so a console is available. Then, when a UGA driver is loaded\r
	23	// this driver can be disconnected, and the UGA driver can be connected.\r
	24	// As long as the UGA driver has a version value greater than 0x00000000, it\r
	25	// will be connected first and will block this driver from connecting.\r
	26	//\r
	27	EFI_DRIVER_BINDING_PROTOCOL gPciVgaMiniPortDriverBinding = {\r
	28	PciVgaMiniPortDriverBindingSupported,\r
	29	PciVgaMiniPortDriverBindingStart,\r
	30	PciVgaMiniPortDriverBindingStop,\r
	31	0x00000000,\r
	32	NULL,\r
	33	NULL\r
	34	};\r
	35	\r
fcf03596	36	/**\r
	37	Driver entry point for VgaMiniPort driver.\r
	38	\r
eeefcb9d	39	@param ImageHandle Driver image handle.\r
eeefcb9d	40	@param SystemTable Point to EFI_SYSTEM_TABLE.\r
fcf03596	41	\r
	42	@retval Status of install driver binding protocol.\r
	43	**/\r
733f03aa	44	EFI_STATUS\r
	45	EFIAPI\r
	46	PciVgaMiniPortDriverEntryPoint (\r
	47	IN EFI_HANDLE ImageHandle,\r
	48	IN EFI_SYSTEM_TABLE *SystemTable\r
	49	)\r
733f03aa	50	{\r
	51	return EfiLibInstallDriverBindingComponentName2 (\r
	52	ImageHandle,\r
	53	SystemTable,\r
	54	&gPciVgaMiniPortDriverBinding,\r
	55	ImageHandle,\r
	56	&gPciVgaMiniPortComponentName,\r
	57	&gPciVgaMiniPortComponentName2\r
	58	);\r
	59	}\r
	60	\r
	61	\r
	62	/**\r
	63	Supported.\r
	64	\r
	65	(Standard DriverBinding Protocol Supported() function)\r
	66	\r
eeefcb9d	67	@param This The driver binding protocol.\r
	68	@param Controller The controller handle to check.\r
	69	@param RemainingDevicePath The remaining device path.\r
	70	\r
	71	@retval EFI_SUCCESS The driver supports this controller.\r
	72	@retval EFI_UNSUPPORTED This device isn't supported.\r
733f03aa	73	\r
	74	**/\r
	75	EFI_STATUS\r
	76	EFIAPI\r
	77	PciVgaMiniPortDriverBindingSupported (\r
	78	IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
	79	IN EFI_HANDLE Controller,\r
	80	IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
	81	)\r
	82	{\r
	83	EFI_STATUS Status;\r
	84	EFI_PCI_IO_PROTOCOL *PciIo;\r
	85	PCI_TYPE00 Pci;\r
	86	\r
	87	//\r
	88	// Open the IO Abstraction(s) needed to perform the supported test\r
	89	//\r
	90	Status = gBS->OpenProtocol (\r
	91	Controller,\r
	92	&gEfiPciIoProtocolGuid,\r
	93	(VOID **) &PciIo,\r
	94	This->DriverBindingHandle,\r
	95	Controller,\r
	96	EFI_OPEN_PROTOCOL_BY_DRIVER\r
	97	);\r
	98	if (EFI_ERROR (Status)) {\r
	99	return Status;\r
	100	}\r
	101	//\r
	102	// See if this is a PCI VGA Controller by looking at the Command register and\r
	103	// Class Code Register\r
	104	//\r
	105	Status = PciIo->Pci.Read (\r
	106	PciIo,\r
	107	EfiPciIoWidthUint32,\r
	108	0,\r
	109	sizeof (Pci) / sizeof (UINT32),\r
	110	&Pci\r
	111	);\r
	112	if (EFI_ERROR (Status)) {\r
	113	goto Done;\r
	114	}\r
	115	\r
	116	Status = EFI_UNSUPPORTED;\r
	117	//\r
	118	// See if the device is an enabled VGA device.\r
	119	// Most systems can only have on VGA device on at a time.\r
	120	//\r
	121	if (((Pci.Hdr.Command & 0x03) == 0x03) && IS_PCI_VGA (&Pci)) {\r
	122	Status = EFI_SUCCESS;\r
	123	}\r
	124	\r
	125	Done:\r
	126	gBS->CloseProtocol (\r
	127	Controller,\r
	128	&gEfiPciIoProtocolGuid,\r
	129	This->DriverBindingHandle,\r
	130	Controller\r
	131	);\r
	132	\r
	133	return Status;\r
	134	}\r
	135	\r
	136	\r
137	/**\r
138	Install VGA Mini Port Protocol onto VGA device handles\r
139	\r
140	(Standard DriverBinding Protocol Start() function)\r
141	\r
eeefcb9d	142	@param This The driver binding instance.\r
	143	@param Controller The controller to check.\r
	144	@param RemainingDevicePath The remaining device patch.\r
	145	\r
	146	@retval EFI_SUCCESS The controller is controlled by the driver.\r
	147	@retval EFI_ALREADY_STARTED The controller is already controlled by the driver.\r
	148	@retval EFI_OUT_OF_RESOURCES Failed to allocate resources.\r
733f03aa	149	\r
	150	**/\r
	151	EFI_STATUS\r
	152	EFIAPI\r
	153	PciVgaMiniPortDriverBindingStart (\r
	154	IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
	155	IN EFI_HANDLE Controller,\r
	156	IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
	157	)\r
	158	{\r
	159	EFI_STATUS Status;\r
	160	EFI_PCI_IO_PROTOCOL *PciIo;\r
	161	PCI_VGA_MINI_PORT_DEV *PciVgaMiniPortPrivate;\r
	162	\r
	163	PciVgaMiniPortPrivate = NULL;\r
	164	PciIo = NULL;\r
	165	//\r
	166	// Open the IO Abstraction(s) needed\r
	167	//\r
	168	Status = gBS->OpenProtocol (\r
	169	Controller,\r
	170	&gEfiPciIoProtocolGuid,\r
	171	(VOID **) &PciIo,\r
	172	This->DriverBindingHandle,\r
	173	Controller,\r
	174	EFI_OPEN_PROTOCOL_BY_DRIVER\r
	175	);\r
	176	if (EFI_ERROR (Status)) {\r
	177	goto Done;\r
	178	}\r
	179	//\r
	180	// Allocate the private device structure\r
	181	//\r
	182	Status = gBS->AllocatePool (\r
	183	EfiBootServicesData,\r
	184	sizeof (PCI_VGA_MINI_PORT_DEV),\r
	185	(VOID **) &PciVgaMiniPortPrivate\r
	186	);\r
	187	if (EFI_ERROR (Status)) {\r
	188	goto Done;\r
	189	}\r
	190	\r
	191	ZeroMem (PciVgaMiniPortPrivate, sizeof (PCI_VGA_MINI_PORT_DEV));\r
	192	\r
	193	//\r
	194	// Initialize the private device structure\r
	195	//\r
	196	PciVgaMiniPortPrivate->Signature = PCI_VGA_MINI_PORT_DEV_SIGNATURE;\r
	197	PciVgaMiniPortPrivate->Handle = Controller;\r
	198	PciVgaMiniPortPrivate->PciIo = PciIo;\r
	199	\r
	200	PciVgaMiniPortPrivate->VgaMiniPort.SetMode = PciVgaMiniPortSetMode;\r
	201	PciVgaMiniPortPrivate->VgaMiniPort.VgaMemoryOffset = 0xb8000;\r
	202	PciVgaMiniPortPrivate->VgaMiniPort.CrtcAddressRegisterOffset = 0x3d4;\r
	203	PciVgaMiniPortPrivate->VgaMiniPort.CrtcDataRegisterOffset = 0x3d5;\r
	204	PciVgaMiniPortPrivate->VgaMiniPort.VgaMemoryBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
	205	PciVgaMiniPortPrivate->VgaMiniPort.CrtcAddressRegisterBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
	206	PciVgaMiniPortPrivate->VgaMiniPort.CrtcDataRegisterBar = EFI_PCI_IO_PASS_THROUGH_BAR;\r
	207	PciVgaMiniPortPrivate->VgaMiniPort.MaxMode = 1;\r
	208	\r
	209	//\r
	210	// Install Vga Mini Port Protocol\r
	211	//\r
	212	Status = gBS->InstallMultipleProtocolInterfaces (\r
213	&Controller,\r
214	&gEfiVgaMiniPortProtocolGuid,\r
215	&PciVgaMiniPortPrivate->VgaMiniPort,\r
216	NULL\r
217	);\r
218	Done:\r
219	if (EFI_ERROR (Status)) {\r
220	gBS->CloseProtocol (\r
221	Controller,\r
222	&gEfiPciIoProtocolGuid,\r
223	This->DriverBindingHandle,\r
224	Controller\r
225	);\r
eeefcb9d	226	if (PciVgaMiniPortPrivate != NULL) {\r
733f03aa	227	gBS->FreePool (PciVgaMiniPortPrivate);\r
	228	}\r
	229	}\r
	230	\r
	231	return Status;\r
	232	}\r
	233	\r
	234	\r
	235	/**\r
	236	Stop.\r
	237	\r
	238	(Standard DriverBinding Protocol Stop() function)\r
	239	\r
eeefcb9d	240	@param This The driver binding protocol.\r
	241	@param Controller The controller to release.\r
	242	@param NumberOfChildren The child number that opened controller\r
	243	BY_CHILD.\r
	244	@param ChildHandleBuffer The array of child handle.\r
	245	\r
	246	@retval EFI_SUCCESS The controller or children are stopped.\r
	247	@retval EFI_DEVICE_ERROR Failed to stop the driver.\r
733f03aa	248	\r
	249	**/\r
	250	EFI_STATUS\r
	251	EFIAPI\r
	252	PciVgaMiniPortDriverBindingStop (\r
	253	IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
	254	IN EFI_HANDLE Controller,\r
	255	IN UINTN NumberOfChildren,\r
	256	IN EFI_HANDLE *ChildHandleBuffer\r
	257	)\r
	258	{\r
	259	EFI_STATUS Status;\r
	260	EFI_VGA_MINI_PORT_PROTOCOL *VgaMiniPort;\r
	261	PCI_VGA_MINI_PORT_DEV *PciVgaMiniPortPrivate;\r
	262	\r
	263	Status = gBS->OpenProtocol (\r
	264	Controller,\r
	265	&gEfiVgaMiniPortProtocolGuid,\r
	266	(VOID **) &VgaMiniPort,\r
	267	This->DriverBindingHandle,\r
	268	Controller,\r
	269	EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
	270	);\r
	271	if (EFI_ERROR (Status)) {\r
	272	return Status;\r
	273	}\r
	274	\r
	275	PciVgaMiniPortPrivate = PCI_VGA_MINI_PORT_DEV_FROM_THIS (VgaMiniPort);\r
	276	\r
	277	Status = gBS->UninstallProtocolInterface (\r
	278	Controller,\r
	279	&gEfiVgaMiniPortProtocolGuid,\r
	280	&PciVgaMiniPortPrivate->VgaMiniPort\r
	281	);\r
	282	if (EFI_ERROR (Status)) {\r
	283	return Status;\r
	284	}\r
	285	\r
	286	gBS->CloseProtocol (\r
	287	Controller,\r
	288	&gEfiPciIoProtocolGuid,\r
	289	This->DriverBindingHandle,\r
	290	Controller\r
	291	);\r
	292	\r
	293	gBS->FreePool (PciVgaMiniPortPrivate);\r
	294	\r
	295	return EFI_SUCCESS;\r
	296	}\r
	297	//\r
	298	// VGA Mini Port Protocol Functions\r
	299	//\r
	300	\r
	301	/**\r
eeefcb9d	302	Thunk function of EFI_VGA_MINI_PORT_SET_MODE.\r
733f03aa	303	\r
eeefcb9d	304	@param This Point to instance of EFI_VGA_MINI_PORT_PROTOCOL.\r
eeefcb9d	305	@param ModeNumber Mode number.\r
733f03aa	306	\r
eeefcb9d	307	@retval EFI_UNSUPPORTED Invalid mode number.\r
eeefcb9d	308	@retval EFI_SUCCESS Success.\r
733f03aa	309	\r
	310	**/\r
	311	EFI_STATUS\r
	312	EFIAPI\r
	313	PciVgaMiniPortSetMode (\r
	314	IN EFI_VGA_MINI_PORT_PROTOCOL *This,\r
	315	IN UINTN ModeNumber\r
	316	)\r
	317	{\r
	318	if (ModeNumber > This->MaxMode) {\r
	319	return EFI_UNSUPPORTED;\r
	320	}\r
	321	\r
	322	return EFI_SUCCESS;\r
	323	}\r
fcf03596	324	\r