[mirror_edk2.git] / EdkModulePkg / Bus / Pci / PciBus / Dxe / PciLib.h

/*++\r
\r
Copyright (c) 2006 - 2007, Intel Corporation\r
All rights reserved. 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
Module Name:\r
\r
  PciLib.h\r
\r
Abstract:\r
\r
  PCI Bus Driver Lib header file.\r
  Please use PCD feature flag PcdPciBusHotplugDeviceSupport to enable\r
  support hot plug.\r
\r
Revision History\r
\r
--*/\r
\r
#ifndef _EFI_PCI_LIB_H\r
#define _EFI_PCI_LIB_H\r
\r
//\r
// Mask definistions for PCD PcdPciIncompatibleDeviceSupportMask\r
//\r
#define PCI_INCOMPATIBLE_ACPI_RESOURCE_SUPPORT         0x01\r
#define PCI_INCOMPATIBLE_READ_SUPPORT                  0x02\r
#define PCI_INCOMPATIBLE_WRITE_SUPPORT                 0x04\r
#define PCI_INCOMPATIBLE_REGISTER_UPDATE_SUPPORT       0x08\r
#define PCI_INCOMPATIBLE_ACCESS_WIDTH_SUPPORT          0x0a\r
\r
VOID\r
InstallHotPlugRequestProtocol (\r
  IN  EFI_STATUS                    *Status\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  Status  - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
VOID\r
InstallPciHotplugGuid (\r
  IN  PCI_IO_DEVICE                  *PciIoDevice\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciIoDevice - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
VOID\r
UninstallPciHotplugGuid (\r
  IN  PCI_IO_DEVICE                  *PciIoDevice\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciIoDevice - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
VOID\r
GetBackPcCardBar (\r
  IN  PCI_IO_DEVICE                  *PciIoDevice\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciIoDevice - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
RemoveRejectedPciDevices (\r
  EFI_HANDLE        RootBridgeHandle,\r
  IN PCI_IO_DEVICE  *Bridge\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  RootBridgeHandle  - TODO: add argument description\r
  Bridge            - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
PciHostBridgeResourceAllocator (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciResAlloc - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
PciHostBridgeResourceAllocator_WithoutHotPlugDeviceSupport (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
  )\r
;\r
\r
EFI_STATUS\r
PciHostBridgeResourceAllocator_WithHotPlugDeviceSupport (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
  )\r
;\r
\r
EFI_STATUS\r
PciScanBus (\r
  IN PCI_IO_DEVICE                      *Bridge,\r
  IN UINT8                              StartBusNumber,\r
  OUT UINT8                             *SubBusNumber,\r
  OUT UINT8                             *PaddedBusRange\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  Bridge          - TODO: add argument description\r
  StartBusNumber  - TODO: add argument description\r
  SubBusNumber    - TODO: add argument description\r
  PaddedBusRange  - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
PciScanBus_WithHotPlugDeviceSupport (\r
  IN PCI_IO_DEVICE                      *Bridge,\r
  IN UINT8                              StartBusNumber,\r
  OUT UINT8                             *SubBusNumber,\r
  OUT UINT8                             *PaddedBusRange\r
  )\r
;\r
\r
EFI_STATUS\r
PciScanBus_WithoutHotPlugDeviceSupport (\r
  IN PCI_IO_DEVICE                      *Bridge,\r
  IN UINT8                              StartBusNumber,\r
  OUT UINT8                             *SubBusNumber,\r
  OUT UINT8                             *PaddedBusRange\r
  )\r
;\r
\r
EFI_STATUS\r
PciRootBridgeP2CProcess (\r
  IN PCI_IO_DEVICE *Bridge\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  Bridge  - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
PciHostBridgeP2CProcess (\r
  IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciResAlloc - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
EFI_STATUS\r
PciHostBridgeEnumerator (\r
  EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL  *PciResAlloc\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  PciResAlloc - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
;\r
\r
/**\r
  Read PCI configuration space through EFI_PCI_IO_PROTOCOL.\r
\r
  @param  PciIo               A pointer to the EFI_PCI_O_PROTOCOL.\r
  @param  Width               Signifies the width of the memory operations.\r
  @Param  Address             The address within the PCI configuration space for the PCI controller.\r
  @param  Buffer              For read operations, the destination buffer to store the results. For\r
                              write operations, the source buffer to write data from.\r
\r
  @retval EFI_SUCCESS            The data was read from or written to the PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Width is invalid for this PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Buffer is NULL.\r
  @retval EFI_OUT_OF_RESOURCES   The request could not be completed due to a lack of resources.\r
\r
**/\r
EFI_STATUS\r
PciIoRead (\r
  IN       EFI_PCI_IO_PROTOCOL                    *PciIo,\r
  IN       EFI_PCI_IO_PROTOCOL_WIDTH              Width,\r
  IN       UINT32                                 Address,\r
  IN       UINTN                                  Count,\r
  IN OUT   VOID                                   *Buffer\r
  );\r
\r
/**\r
  Write PCI configuration space through EFI_PCI_IO_PROTOCOL.\r
\r
  @param  PciIo               A pointer to the EFI_PCI_O_PROTOCOL.\r
  @param  Width               Signifies the width of the memory operations.\r
  @Param  Address             The address within the PCI configuration space for the PCI controller.\r
  @param  Buffer              For read operations, the destination buffer to store the results. For\r
                              write operations, the source buffer to write data from.\r
\r
  @retval EFI_SUCCESS            The data was read from or written to the PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Width is invalid for this PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Buffer is NULL.\r
  @retval EFI_OUT_OF_RESOURCES   The request could not be completed due to a lack of resources.\r
\r
**/\r
EFI_STATUS\r
PciIoWrite (\r
  IN       EFI_PCI_IO_PROTOCOL                    *PciIo,\r
  IN       EFI_PCI_IO_PROTOCOL_WIDTH              Width,\r
  IN       UINT32                                 Address,\r
  IN       UINTN                                  Count,\r
  IN OUT   VOID                                   *Buffer\r
  );\r
\r
/**\r
  Write PCI configuration space through EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
\r
  @param  PciRootBridgeIo     A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
  @param  Pci                 A pointer to PCI_TYPE00.\r
  @param  Width               Signifies the width of the memory operations.\r
  @Param  Address             The address within the PCI configuration space for the PCI controller.\r
  @param  Buffer              For read operations, the destination buffer to store the results. For\r
                              write operations, the source buffer to write data from.\r
\r
  @retval EFI_SUCCESS            The data was read from or written to the PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Width is invalid for this PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Buffer is NULL.\r
  @retval EFI_OUT_OF_RESOURCES   The request could not be completed due to a lack of resources.\r
\r
**/\r
EFI_STATUS\r
PciRootBridgeIoWrite (\r
  IN       EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *PciRootBridgeIo,\r
  IN       PCI_TYPE00                             *Pci,\r
  IN       EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,\r
  IN       UINT64                                 Address,\r
  IN       UINTN                                  Count,\r
  IN OUT   VOID                                   *Buffer\r
  );\r
\r
/**\r
  Read PCI configuration space through EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
\r
  @param  PciRootBridgeIo     A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
  @param  Pci                 A pointer to PCI_TYPE00.\r
  @param  Width               Signifies the width of the memory operations.\r
  @Param  Address             The address within the PCI configuration space for the PCI controller.\r
  @param  Buffer              For read operations, the destination buffer to store the results. For\r
                              write operations, the source buffer to write data from.\r
\r
  @retval EFI_SUCCESS            The data was read from or written to the PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Width is invalid for this PCI root bridge.\r
  @retval EFI_INVALID_PARAMETER  Buffer is NULL.\r
  @retval EFI_OUT_OF_RESOURCES   The request could not be completed due to a lack of resources.\r
\r
**/\r
EFI_STATUS\r
PciRootBridgeIoRead (\r
  IN       EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL        *PciRootBridgeIo,\r
  IN       PCI_TYPE00                             *Pci,\r
  IN       EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH  Width,\r
  IN       UINT64                                 Address,\r
  IN       UINTN                                  Count,\r
  IN OUT   VOID                                   *Buffer\r
  );\r
#endif\r
Commit	Line	Data
878ddf1f	1	/*++\r
878ddf1f	2	\r
98419ef4	3	Copyright (c) 2006 - 2007, Intel Corporation\r
	4	All rights reserved. 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
878ddf1f	11	\r
	12	Module Name:\r
	13	\r
	14	PciLib.h\r
98419ef4	15	\r
878ddf1f	16	Abstract:\r
878ddf1f	17	\r
6874dbd0	18	PCI Bus Driver Lib header file.\r
	19	Please use PCD feature flag PcdPciBusHotplugDeviceSupport to enable\r
	20	support hot plug.\r
878ddf1f	21	\r
	22	Revision History\r
	23	\r
	24	--*/\r
	25	\r
	26	#ifndef _EFI_PCI_LIB_H\r
	27	#define _EFI_PCI_LIB_H\r
	28	\r
98419ef4	29	//\r
	30	// Mask definistions for PCD PcdPciIncompatibleDeviceSupportMask\r
	31	//\r
	32	#define PCI_INCOMPATIBLE_ACPI_RESOURCE_SUPPORT 0x01\r
	33	#define PCI_INCOMPATIBLE_READ_SUPPORT 0x02\r
	34	#define PCI_INCOMPATIBLE_WRITE_SUPPORT 0x04\r
	35	#define PCI_INCOMPATIBLE_REGISTER_UPDATE_SUPPORT 0x08\r
	36	#define PCI_INCOMPATIBLE_ACCESS_WIDTH_SUPPORT 0x0a\r
	37	\r
878ddf1f	38	VOID\r
	39	InstallHotPlugRequestProtocol (\r
	40	IN EFI_STATUS *Status\r
	41	)\r
	42	/*++\r
	43	\r
	44	Routine Description:\r
	45	\r
	46	TODO: Add function description\r
	47	\r
	48	Arguments:\r
	49	\r
	50	Status - TODO: add argument description\r
	51	\r
	52	Returns:\r
	53	\r
	54	TODO: add return values\r
	55	\r
	56	--*/\r
	57	;\r
	58	\r
	59	VOID\r
	60	InstallPciHotplugGuid (\r
	61	IN PCI_IO_DEVICE *PciIoDevice\r
	62	)\r
	63	/*++\r
	64	\r
	65	Routine Description:\r
	66	\r
	67	TODO: Add function description\r
	68	\r
	69	Arguments:\r
	70	\r
	71	PciIoDevice - TODO: add argument description\r
	72	\r
	73	Returns:\r
	74	\r
	75	TODO: add return values\r
	76	\r
	77	--*/\r
	78	;\r
	79	\r
	80	VOID\r
	81	UninstallPciHotplugGuid (\r
	82	IN PCI_IO_DEVICE *PciIoDevice\r
	83	)\r
	84	/*++\r
	85	\r
	86	Routine Description:\r
	87	\r
	88	TODO: Add function description\r
	89	\r
	90	Arguments:\r
	91	\r
	92	PciIoDevice - TODO: add argument description\r
	93	\r
	94	Returns:\r
	95	\r
	96	TODO: add return values\r
	97	\r
	98	--*/\r
	99	;\r
	100	\r
	101	VOID\r
102	GetBackPcCardBar (\r
103	IN PCI_IO_DEVICE *PciIoDevice\r
104	)\r
105	/*++\r
106	\r
107	Routine Description:\r
108	\r
109	TODO: Add function description\r
110	\r
111	Arguments:\r
112	\r
113	PciIoDevice - TODO: add argument description\r
114	\r
115	Returns:\r
116	\r
117	TODO: add return values\r
118	\r
119	--*/\r
120	;\r
121	\r
122	EFI_STATUS\r
123	RemoveRejectedPciDevices (\r
124	EFI_HANDLE RootBridgeHandle,\r
125	IN PCI_IO_DEVICE *Bridge\r
126	)\r
127	/*++\r
128	\r
129	Routine Description:\r
130	\r
131	TODO: Add function description\r
132	\r
133	Arguments:\r
134	\r
135	RootBridgeHandle - TODO: add argument description\r
136	Bridge - TODO: add argument description\r
137	\r
138	Returns:\r
139	\r
140	TODO: add return values\r
141	\r
142	--*/\r
143	;\r
144	\r
145	EFI_STATUS\r
146	PciHostBridgeResourceAllocator (\r
147	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
148	)\r
149	/*++\r
150	\r
151	Routine Description:\r
152	\r
153	TODO: Add function description\r
154	\r
155	Arguments:\r
156	\r
157	PciResAlloc - TODO: add argument description\r
158	\r
159	Returns:\r
160	\r
161	TODO: add return values\r
162	\r
163	--*/\r
164	;\r
165	\r
6874dbd0	166	EFI_STATUS\r
	167	PciHostBridgeResourceAllocator_WithoutHotPlugDeviceSupport (\r
	168	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
	169	)\r
	170	;\r
	171	\r
	172	EFI_STATUS\r
	173	PciHostBridgeResourceAllocator_WithHotPlugDeviceSupport (\r
	174	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
	175	)\r
	176	;\r
	177	\r
878ddf1f	178	EFI_STATUS\r
	179	PciScanBus (\r
	180	IN PCI_IO_DEVICE *Bridge,\r
	181	IN UINT8 StartBusNumber,\r
	182	OUT UINT8 *SubBusNumber,\r
	183	OUT UINT8 *PaddedBusRange\r
	184	)\r
	185	/*++\r
	186	\r
	187	Routine Description:\r
	188	\r
	189	TODO: Add function description\r
	190	\r
	191	Arguments:\r
	192	\r
	193	Bridge - TODO: add argument description\r
	194	StartBusNumber - TODO: add argument description\r
	195	SubBusNumber - TODO: add argument description\r
	196	PaddedBusRange - TODO: add argument description\r
	197	\r
	198	Returns:\r
	199	\r
	200	TODO: add return values\r
	201	\r
	202	--*/\r
	203	;\r
	204	\r
6874dbd0	205	EFI_STATUS\r
	206	PciScanBus_WithHotPlugDeviceSupport (\r
	207	IN PCI_IO_DEVICE *Bridge,\r
	208	IN UINT8 StartBusNumber,\r
	209	OUT UINT8 *SubBusNumber,\r
	210	OUT UINT8 *PaddedBusRange\r
	211	)\r
	212	;\r
	213	\r
	214	EFI_STATUS\r
	215	PciScanBus_WithoutHotPlugDeviceSupport (\r
	216	IN PCI_IO_DEVICE *Bridge,\r
	217	IN UINT8 StartBusNumber,\r
	218	OUT UINT8 *SubBusNumber,\r
	219	OUT UINT8 *PaddedBusRange\r
	220	)\r
	221	;\r
	222	\r
878ddf1f	223	EFI_STATUS\r
	224	PciRootBridgeP2CProcess (\r
	225	IN PCI_IO_DEVICE *Bridge\r
	226	)\r
	227	/*++\r
	228	\r
	229	Routine Description:\r
	230	\r
	231	TODO: Add function description\r
	232	\r
	233	Arguments:\r
	234	\r
	235	Bridge - TODO: add argument description\r
	236	\r
	237	Returns:\r
	238	\r
	239	TODO: add return values\r
	240	\r
	241	--*/\r
	242	;\r
	243	\r
	244	EFI_STATUS\r
	245	PciHostBridgeP2CProcess (\r
	246	IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
	247	)\r
	248	/*++\r
	249	\r
	250	Routine Description:\r
	251	\r
	252	TODO: Add function description\r
	253	\r
	254	Arguments:\r
	255	\r
	256	PciResAlloc - TODO: add argument description\r
	257	\r
	258	Returns:\r
	259	\r
	260	TODO: add return values\r
	261	\r
	262	--*/\r
	263	;\r
	264	\r
	265	EFI_STATUS\r
	266	PciHostBridgeEnumerator (\r
	267	EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc\r
	268	)\r
	269	/*++\r
	270	\r
	271	Routine Description:\r
	272	\r
	273	TODO: Add function description\r
	274	\r
	275	Arguments:\r
	276	\r
	277	PciResAlloc - TODO: add argument description\r
	278	\r
	279	Returns:\r
	280	\r
	281	TODO: add return values\r
	282	\r
	283	--*/\r
	284	;\r
	285	\r
98419ef4	286	/**\r
	287	Read PCI configuration space through EFI_PCI_IO_PROTOCOL.\r
	288	\r
	289	@param PciIo A pointer to the EFI_PCI_O_PROTOCOL.\r
	290	@param Width Signifies the width of the memory operations.\r
	291	@Param Address The address within the PCI configuration space for the PCI controller.\r
	292	@param Buffer For read operations, the destination buffer to store the results. For\r
	293	write operations, the source buffer to write data from.\r
	294	\r
	295	@retval EFI_SUCCESS The data was read from or written to the PCI root bridge.\r
	296	@retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.\r
	297	@retval EFI_INVALID_PARAMETER Buffer is NULL.\r
	298	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
	299	\r
	300	**/\r
	301	EFI_STATUS\r
	302	PciIoRead (\r
	303	IN EFI_PCI_IO_PROTOCOL *PciIo,\r
	304	IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
	305	IN UINT32 Address,\r
	306	IN UINTN Count,\r
	307	IN OUT VOID *Buffer\r
	308	);\r
	309	\r
	310	/**\r
	311	Write PCI configuration space through EFI_PCI_IO_PROTOCOL.\r
	312	\r
	313	@param PciIo A pointer to the EFI_PCI_O_PROTOCOL.\r
	314	@param Width Signifies the width of the memory operations.\r
	315	@Param Address The address within the PCI configuration space for the PCI controller.\r
	316	@param Buffer For read operations, the destination buffer to store the results. For\r
	317	write operations, the source buffer to write data from.\r
	318	\r
	319	@retval EFI_SUCCESS The data was read from or written to the PCI root bridge.\r
	320	@retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.\r
	321	@retval EFI_INVALID_PARAMETER Buffer is NULL.\r
	322	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
	323	\r
	324	**/\r
	325	EFI_STATUS\r
	326	PciIoWrite (\r
	327	IN EFI_PCI_IO_PROTOCOL *PciIo,\r
	328	IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
	329	IN UINT32 Address,\r
	330	IN UINTN Count,\r
	331	IN OUT VOID *Buffer\r
	332	);\r
	333	\r
	334	/**\r
	335	Write PCI configuration space through EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
	336	\r
	337	@param PciRootBridgeIo A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
	338	@param Pci A pointer to PCI_TYPE00.\r
	339	@param Width Signifies the width of the memory operations.\r
	340	@Param Address The address within the PCI configuration space for the PCI controller.\r
	341	@param Buffer For read operations, the destination buffer to store the results. For\r
	342	write operations, the source buffer to write data from.\r
	343	\r
	344	@retval EFI_SUCCESS The data was read from or written to the PCI root bridge.\r
	345	@retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.\r
	346	@retval EFI_INVALID_PARAMETER Buffer is NULL.\r
	347	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
	348	\r
	349	**/\r
350	EFI_STATUS\r
351	PciRootBridgeIoWrite (\r
352	IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,\r
353	IN PCI_TYPE00 *Pci,\r
354	IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,\r
355	IN UINT64 Address,\r
356	IN UINTN Count,\r
357	IN OUT VOID *Buffer\r
358	);\r
359	\r
360	/**\r
361	Read PCI configuration space through EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
362	\r
363	@param PciRootBridgeIo A pointer to the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.\r
364	@param Pci A pointer to PCI_TYPE00.\r
365	@param Width Signifies the width of the memory operations.\r
366	@Param Address The address within the PCI configuration space for the PCI controller.\r
367	@param Buffer For read operations, the destination buffer to store the results. For\r
368	write operations, the source buffer to write data from.\r
369	\r
370	@retval EFI_SUCCESS The data was read from or written to the PCI root bridge.\r
371	@retval EFI_INVALID_PARAMETER Width is invalid for this PCI root bridge.\r
372	@retval EFI_INVALID_PARAMETER Buffer is NULL.\r
373	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
374	\r
375	**/\r
376	EFI_STATUS\r
377	PciRootBridgeIoRead (\r
378	IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,\r
379	IN PCI_TYPE00 *Pci,\r
380	IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH Width,\r
381	IN UINT64 Address,\r
382	IN UINTN Count,\r
383	IN OUT VOID *Buffer\r
384	);\r
878ddf1f	385	#endif\r