[mirror_edk2.git] / IntelFrameworkPkg / Include / Protocol / FirmwareVolume.h

/** @file\r
  This file declares Firmware Volume protocol.\r
  The Firmware Volume Protocol provides file-level access to the firmware volume.E ach firmware\r
  volume driver must produce an instance of the Firmware Volume Protocol if the firmware volume\r
  is to be visible to the system.T he Firmware Volume Protocol also provides mechanisms for\r
  determining and modifying some attributes of the firmware volume.\r
  \r
  Copyright (c) 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
  @par Revision Reference:\r
  This protocol is defined in Firmware Volume specification.\r
  Version 0.9\r
\r
**/\r
\r
#ifndef _FIRMWARE_VOLUME_H_\r
#define _FIRMWARE_VOLUME_H_\r
\r
#include <PiDxe.h>\r
\r
//\r
// Firmware Volume Protocol GUID definition\r
//\r
#define EFI_FIRMWARE_VOLUME_PROTOCOL_GUID \\r
  { \\r
    0x389F751F, 0x1838, 0x4388, {0x83, 0x90, 0xCD, 0x81, 0x54, 0xBD, 0x27, 0xF8 } \\r
  }\r
\r
#define FV_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('_', 'F', 'V', '_')\r
\r
typedef struct _EFI_FIRMWARE_VOLUME_PROTOCOL  EFI_FIRMWARE_VOLUME_PROTOCOL;\r
\r
//\r
// EFI_FV_ATTRIBUTES bit definitions\r
//\r
typedef UINT64  EFI_FV_ATTRIBUTES;\r
\r
//\r
// ************************************************************\r
// EFI_FV_ATTRIBUTES bit definitions\r
// ************************************************************\r
//\r
#define EFI_FV_READ_DISABLE_CAP       0x0000000000000001ULL\r
#define EFI_FV_READ_ENABLE_CAP        0x0000000000000002ULL\r
#define EFI_FV_READ_STATUS            0x0000000000000004ULL\r
\r
#define EFI_FV_WRITE_DISABLE_CAP      0x0000000000000008ULL\r
#define EFI_FV_WRITE_ENABLE_CAP       0x0000000000000010ULL\r
#define EFI_FV_WRITE_STATUS           0x0000000000000020ULL\r
\r
#define EFI_FV_LOCK_CAP               0x0000000000000040ULL\r
#define EFI_FV_LOCK_STATUS            0x0000000000000080ULL\r
#define EFI_FV_WRITE_POLICY_RELIABLE  0x0000000000000100ULL\r
\r
#define EFI_FV_ALIGNMENT_CAP          0x0000000000008000ULL\r
#define EFI_FV_ALIGNMENT_2            0x0000000000010000ULL\r
#define EFI_FV_ALIGNMENT_4            0x0000000000020000ULL\r
#define EFI_FV_ALIGNMENT_8            0x0000000000040000ULL\r
#define EFI_FV_ALIGNMENT_16           0x0000000000080000ULL\r
#define EFI_FV_ALIGNMENT_32           0x0000000000100000ULL\r
#define EFI_FV_ALIGNMENT_64           0x0000000000200000ULL\r
#define EFI_FV_ALIGNMENT_128          0x0000000000400000ULL\r
#define EFI_FV_ALIGNMENT_256          0x0000000000800000ULL\r
#define EFI_FV_ALIGNMENT_512          0x0000000001000000ULL\r
#define EFI_FV_ALIGNMENT_1K           0x0000000002000000ULL\r
#define EFI_FV_ALIGNMENT_2K           0x0000000004000000ULL\r
#define EFI_FV_ALIGNMENT_4K           0x0000000008000000ULL\r
#define EFI_FV_ALIGNMENT_8K           0x0000000010000000ULL\r
#define EFI_FV_ALIGNMENT_16K          0x0000000020000000ULL\r
#define EFI_FV_ALIGNMENT_32K          0x0000000040000000ULL\r
#define EFI_FV_ALIGNMENT_64K          0x0000000080000000ULL\r
\r
//\r
// Protocol API definitions\r
//\r
\r
/**\r
  Retrieves attributes, insures positive polarity of attribute bits, returns\r
  resulting attributes in output parameter\r
\r
  @param  This                  Calling context\r
  @param  Attributes            output buffer which contains attributes\r
\r
  @retval EFI_INVALID_PARAMETER\r
  @retval EFI_SUCCESS\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_GET_ATTRIBUTES) (\r
  IN  EFI_FIRMWARE_VOLUME_PROTOCOL  *This,\r
  OUT EFI_FV_ATTRIBUTES             *Attributes\r
  );\r
\r
/**\r
  Sets volume attributes\r
\r
  @param  This                  Calling context\r
  @param  Attributes            Buffer which contains attributes\r
\r
  @retval EFI_INVALID_PARAMETER\r
  @retval EFI_DEVICE_ERROR\r
  @retval EFI_SUCCESS\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_SET_ATTRIBUTES) (\r
  IN EFI_FIRMWARE_VOLUME_PROTOCOL   *This,\r
  IN OUT EFI_FV_ATTRIBUTES          *Attributes\r
  );\r
\r
/**\r
  Read the requested file (NameGuid) and returns data in Buffer.\r
\r
  @param  This                  Calling context\r
  @param  NameGuid              Filename identifying which file to read\r
  @param  Buffer                Pointer to pointer to buffer in which contents of file are returned.\r
                                <br>\r
                                If Buffer is NULL, only type, attributes, and size are returned as\r
                                there is no output buffer.\r
                                <br>\r
                                If Buffer != NULL and *Buffer == NULL, the output buffer is allocated\r
                                from BS pool by ReadFile\r
                                <br>\r
                                If Buffer != NULL and *Buffer != NULL, the output buffer has been\r
                                allocated by the caller and is being passed in.\r
  @param  BufferSize            Indicates the buffer size passed in, and on output the size\r
                                required to complete the read\r
  @param  FoundType             Indicates the type of the file who's data is returned\r
  @param  FileAttributes        Indicates the attributes of the file who's data is resturned\r
  @param  AuthenticationStatus  Indicates the authentication status of the data\r
\r
  @retval EFI_SUCCESS\r
  @retval EFI_WARN_BUFFER_TOO_SMALL\r
  @retval EFI_NOT_FOUND\r
  @retval EFI_DEVICE_ERROR\r
  @retval EFI_ACCESS_DENIED\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_READ_FILE) (\r
  IN EFI_FIRMWARE_VOLUME_PROTOCOL   *This,\r
  IN EFI_GUID                       *NameGuid,\r
  IN OUT VOID                       **Buffer,\r
  IN OUT UINTN                      *BufferSize,\r
  OUT EFI_FV_FILETYPE               *FoundType,\r
  OUT EFI_FV_FILE_ATTRIBUTES        *FileAttributes,\r
  OUT UINT32                        *AuthenticationStatus\r
  );\r
\r
/**\r
  Read the requested section from the specified file and returns data in Buffer.\r
\r
  @param  This                  Calling context\r
  @param  NameGuid              Filename identifying the file from which to read\r
  @param  SectionType           Indicates what section type to retrieve\r
  @param  SectionInstance       Indicates which instance of SectionType to retrieve\r
  @param  Buffer                Pointer to pointer to buffer in which contents of file are returned.\r
                                <br>\r
                                If Buffer is NULL, only type, attributes, and size are returned as\r
                                there is no output buffer.\r
                                <br>\r
                                If Buffer != NULL and *Buffer == NULL, the output buffer is allocated\r
                                from BS pool by ReadFile\r
                                <br>\r
                                If Buffer != NULL and *Buffer != NULL, the output buffer has been\r
                                allocated by the caller and is being passed in.\r
  @param  BufferSize            Indicates the buffer size passed in, and on output the size\r
                                required to complete the read\r
  @param  AuthenticationStatus  Indicates the authentication status of the data\r
\r
  @retval EFI_SUCCESS\r
  @retval EFI_WARN_BUFFER_TOO_SMALL\r
  @retval EFI_OUT_OF_RESOURCES\r
  @retval EFI_NOT_FOUND\r
  @retval EFI_DEVICE_ERROR\r
  @retval EFI_ACCESS_DENIED\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_READ_SECTION) (\r
  IN EFI_FIRMWARE_VOLUME_PROTOCOL   *This,\r
  IN EFI_GUID                       *NameGuid,\r
  IN EFI_SECTION_TYPE               SectionType,\r
  IN UINTN                          SectionInstance,\r
  IN OUT VOID                       **Buffer,\r
  IN OUT UINTN                      *BufferSize,\r
  OUT UINT32                        *AuthenticationStatus\r
  );\r
\r
typedef UINT32  EFI_FV_WRITE_POLICY;\r
\r
#define EFI_FV_UNRELIABLE_WRITE 0x00000000\r
#define EFI_FV_RELIABLE_WRITE   0x00000001\r
\r
typedef struct {\r
  EFI_GUID                *NameGuid;\r
  EFI_FV_FILETYPE         Type;\r
  EFI_FV_FILE_ATTRIBUTES  FileAttributes;\r
  VOID                    *Buffer;\r
  UINT32                  BufferSize;\r
} EFI_FV_WRITE_FILE_DATA;\r
\r
/**\r
  Write the supplied file (NameGuid) to the FV.\r
\r
  @param  This                  Calling context\r
  @param  NumberOfFiles         Indicates the number of file records pointed to by FileData\r
  @param  WritePolicy           Indicates the level of reliability of the write with respect to\r
                                things like power failure events.\r
  @param  FileData              A pointer to an array of EFI_FV_WRITE_FILE_DATA structures. Each\r
                                element in the array indicates a file to write, and there are\r
                                NumberOfFiles elements in the input array.\r
\r
  @retval EFI_SUCCESS\r
  @retval EFI_OUT_OF_RESOURCES\r
  @retval EFI_DEVICE_ERROR\r
  @retval EFI_WRITE_PROTECTED\r
  @retval EFI_NOT_FOUND\r
  @retval EFI_INVALID_PARAMETER\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_WRITE_FILE) (\r
  IN EFI_FIRMWARE_VOLUME_PROTOCOL   *This,\r
  IN UINT32                         NumberOfFiles,\r
  IN EFI_FV_WRITE_POLICY            WritePolicy,\r
  IN EFI_FV_WRITE_FILE_DATA         *FileData\r
  );\r
\r
/**\r
  Given the input key, search for the next matching file in the volume.\r
\r
  @param  This                  Calling context\r
  @param  Key                   Pointer to a caller allocated buffer that contains an implementation\r
                                specific key that is used to track where to begin searching on\r
                                successive calls.\r
  @param  FileType              Indicates the file type to filter for\r
  @param  NameGuid              Guid filename of the file found\r
  @param  Attributes            Attributes of the file found\r
  @param  Size                  Size in bytes of the file found\r
\r
  @retval EFI_SUCCESS\r
  @retval EFI_NOT_FOUND\r
  @retval EFI_DEVICE_ERROR\r
  @retval EFI_ACCESS_DENIED\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_FV_GET_NEXT_FILE) (\r
  IN EFI_FIRMWARE_VOLUME_PROTOCOL   *This,\r
  IN OUT VOID                       *Key,\r
  IN OUT EFI_FV_FILETYPE            *FileType,\r
  OUT EFI_GUID                      *NameGuid,\r
  OUT EFI_FV_FILE_ATTRIBUTES        *Attributes,\r
  OUT UINTN                         *Size\r
  );\r
\r
/**\r
  @par Protocol Description:\r
  The Firmware Volume Protocol provides file-level access to the firmware volume.\r
  Each firmware volume driver must produce an instance of the Firmware Volume\r
  Protocol if the firmware volume is to be visible to the system. The Firmware\r
  Volume Protocol also provides mechanisms for determining and modifying some\r
  attributes of the firmware volume.\r
\r
  @param GetVolumeAttributes\r
  Retrieves volume capabilities and current settings.\r
\r
  @param SetVolumeAttributes\r
  Modifies the current settings of the firmware volume.\r
\r
  @param ReadFile\r
  Reads an entire file from the firmware volume.\r
\r
  @param ReadSection\r
  Reads a single section from a file into a buffer.\r
\r
  @param WriteFile\r
  Writes an entire file into the firmware volume.\r
\r
  @param GetNextFile\r
  Provides service to allow searching the firmware volume.\r
\r
  @param KeySize\r
  Data field that indicates the size in bytes of the Key input buffer for\r
  the GetNextFile() API.\r
\r
  @param ParentHandle\r
  Handle of the parent firmware volume.\r
\r
**/\r
struct _EFI_FIRMWARE_VOLUME_PROTOCOL {\r
  EFI_FV_GET_ATTRIBUTES GetVolumeAttributes;\r
  EFI_FV_SET_ATTRIBUTES SetVolumeAttributes;\r
  EFI_FV_READ_FILE      ReadFile;\r
  EFI_FV_READ_SECTION   ReadSection;\r
  EFI_FV_WRITE_FILE     WriteFile;\r
  EFI_FV_GET_NEXT_FILE  GetNextFile;\r
  UINT32                KeySize;\r
  EFI_HANDLE            ParentHandle;\r
};\r
\r
extern EFI_GUID gEfiFirmwareVolumeProtocolGuid;\r
\r
#endif\r
Commit	Line	Data
79964ac8	1	/** @file\r
79964ac8	2	This file declares Firmware Volume protocol.\r
8411f1c0	3	The Firmware Volume Protocol provides file-level access to the firmware volume.E ach firmware\r
	4	volume driver must produce an instance of the Firmware Volume Protocol if the firmware volume\r
	5	is to be visible to the system.T he Firmware Volume Protocol also provides mechanisms for\r
	6	determining and modifying some attributes of the firmware volume.\r
	7	\r
79964ac8	8	Copyright (c) 2007, Intel Corporation\r
	9	All rights reserved. This program and the accompanying materials\r
	10	are licensed and made available under the terms and conditions of the BSD License\r
	11	which accompanies this distribution. The full text of the license may be found at\r
	12	http://opensource.org/licenses/bsd-license.php\r
	13	\r
	14	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	15	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	16	\r
79964ac8	17	@par Revision Reference:\r
	18	This protocol is defined in Firmware Volume specification.\r
	19	Version 0.9\r
	20	\r
	21	**/\r
	22	\r
	23	#ifndef _FIRMWARE_VOLUME_H_\r
	24	#define _FIRMWARE_VOLUME_H_\r
	25	\r
b80fbe85	26	#include <PiDxe.h>\r
79964ac8	27	\r
	28	//\r
	29	// Firmware Volume Protocol GUID definition\r
	30	//\r
	31	#define EFI_FIRMWARE_VOLUME_PROTOCOL_GUID \\r
	32	{ \\r
	33	0x389F751F, 0x1838, 0x4388, {0x83, 0x90, 0xCD, 0x81, 0x54, 0xBD, 0x27, 0xF8 } \\r
	34	}\r
	35	\r
	36	#define FV_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('_', 'F', 'V', '_')\r
	37	\r
	38	typedef struct _EFI_FIRMWARE_VOLUME_PROTOCOL EFI_FIRMWARE_VOLUME_PROTOCOL;\r
	39	\r
	40	//\r
	41	// EFI_FV_ATTRIBUTES bit definitions\r
	42	//\r
	43	typedef UINT64 EFI_FV_ATTRIBUTES;\r
	44	\r
	45	//\r
	46	// ************************************************************\r
	47	// EFI_FV_ATTRIBUTES bit definitions\r
	48	// ************************************************************\r
	49	//\r
	50	#define EFI_FV_READ_DISABLE_CAP 0x0000000000000001ULL\r
	51	#define EFI_FV_READ_ENABLE_CAP 0x0000000000000002ULL\r
	52	#define EFI_FV_READ_STATUS 0x0000000000000004ULL\r
	53	\r
	54	#define EFI_FV_WRITE_DISABLE_CAP 0x0000000000000008ULL\r
	55	#define EFI_FV_WRITE_ENABLE_CAP 0x0000000000000010ULL\r
	56	#define EFI_FV_WRITE_STATUS 0x0000000000000020ULL\r
	57	\r
	58	#define EFI_FV_LOCK_CAP 0x0000000000000040ULL\r
	59	#define EFI_FV_LOCK_STATUS 0x0000000000000080ULL\r
	60	#define EFI_FV_WRITE_POLICY_RELIABLE 0x0000000000000100ULL\r
	61	\r
	62	#define EFI_FV_ALIGNMENT_CAP 0x0000000000008000ULL\r
	63	#define EFI_FV_ALIGNMENT_2 0x0000000000010000ULL\r
	64	#define EFI_FV_ALIGNMENT_4 0x0000000000020000ULL\r
	65	#define EFI_FV_ALIGNMENT_8 0x0000000000040000ULL\r
	66	#define EFI_FV_ALIGNMENT_16 0x0000000000080000ULL\r
	67	#define EFI_FV_ALIGNMENT_32 0x0000000000100000ULL\r
	68	#define EFI_FV_ALIGNMENT_64 0x0000000000200000ULL\r
	69	#define EFI_FV_ALIGNMENT_128 0x0000000000400000ULL\r
	70	#define EFI_FV_ALIGNMENT_256 0x0000000000800000ULL\r
	71	#define EFI_FV_ALIGNMENT_512 0x0000000001000000ULL\r
	72	#define EFI_FV_ALIGNMENT_1K 0x0000000002000000ULL\r
	73	#define EFI_FV_ALIGNMENT_2K 0x0000000004000000ULL\r
	74	#define EFI_FV_ALIGNMENT_4K 0x0000000008000000ULL\r
	75	#define EFI_FV_ALIGNMENT_8K 0x0000000010000000ULL\r
	76	#define EFI_FV_ALIGNMENT_16K 0x0000000020000000ULL\r
	77	#define EFI_FV_ALIGNMENT_32K 0x0000000040000000ULL\r
	78	#define EFI_FV_ALIGNMENT_64K 0x0000000080000000ULL\r
	79	\r
	80	//\r
	81	// Protocol API definitions\r
	82	//\r
	83	\r
	84	/**\r
	85	Retrieves attributes, insures positive polarity of attribute bits, returns\r
	86	resulting attributes in output parameter\r
	87	\r
	88	@param This Calling context\r
	89	@param Attributes output buffer which contains attributes\r
	90	\r
91	@retval EFI_INVALID_PARAMETER\r
92	@retval EFI_SUCCESS\r
93	\r
94	**/\r
95	typedef\r
96	EFI_STATUS\r
97	(EFIAPI *EFI_FV_GET_ATTRIBUTES) (\r
98	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
99	OUT EFI_FV_ATTRIBUTES *Attributes\r
100	);\r
101	\r
102	/**\r
103	Sets volume attributes\r
104	\r
105	@param This Calling context\r
106	@param Attributes Buffer which contains attributes\r
107	\r
108	@retval EFI_INVALID_PARAMETER\r
109	@retval EFI_DEVICE_ERROR\r
110	@retval EFI_SUCCESS\r
111	\r
112	**/\r
113	typedef\r
114	EFI_STATUS\r
115	(EFIAPI *EFI_FV_SET_ATTRIBUTES) (\r
116	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
117	IN OUT EFI_FV_ATTRIBUTES *Attributes\r
118	);\r
119	\r
79964ac8	120	/**\r
	121	Read the requested file (NameGuid) and returns data in Buffer.\r
	122	\r
	123	@param This Calling context\r
	124	@param NameGuid Filename identifying which file to read\r
	125	@param Buffer Pointer to pointer to buffer in which contents of file are returned.\r
	126	<br>\r
	127	If Buffer is NULL, only type, attributes, and size are returned as\r
	128	there is no output buffer.\r
	129	<br>\r
	130	If Buffer != NULL and *Buffer == NULL, the output buffer is allocated\r
	131	from BS pool by ReadFile\r
	132	<br>\r
	133	If Buffer != NULL and *Buffer != NULL, the output buffer has been\r
	134	allocated by the caller and is being passed in.\r
	135	@param BufferSize Indicates the buffer size passed in, and on output the size\r
	136	required to complete the read\r
	137	@param FoundType Indicates the type of the file who's data is returned\r
	138	@param FileAttributes Indicates the attributes of the file who's data is resturned\r
	139	@param AuthenticationStatus Indicates the authentication status of the data\r
	140	\r
	141	@retval EFI_SUCCESS\r
	142	@retval EFI_WARN_BUFFER_TOO_SMALL\r
	143	@retval EFI_NOT_FOUND\r
	144	@retval EFI_DEVICE_ERROR\r
	145	@retval EFI_ACCESS_DENIED\r
	146	\r
	147	**/\r
	148	typedef\r
	149	EFI_STATUS\r
	150	(EFIAPI *EFI_FV_READ_FILE) (\r
	151	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
	152	IN EFI_GUID *NameGuid,\r
	153	IN OUT VOID **Buffer,\r
	154	IN OUT UINTN *BufferSize,\r
	155	OUT EFI_FV_FILETYPE *FoundType,\r
	156	OUT EFI_FV_FILE_ATTRIBUTES *FileAttributes,\r
	157	OUT UINT32 *AuthenticationStatus\r
	158	);\r
	159	\r
	160	/**\r
	161	Read the requested section from the specified file and returns data in Buffer.\r
	162	\r
	163	@param This Calling context\r
	164	@param NameGuid Filename identifying the file from which to read\r
	165	@param SectionType Indicates what section type to retrieve\r
	166	@param SectionInstance Indicates which instance of SectionType to retrieve\r
	167	@param Buffer Pointer to pointer to buffer in which contents of file are returned.\r
	168	<br>\r
	169	If Buffer is NULL, only type, attributes, and size are returned as\r
	170	there is no output buffer.\r
	171	<br>\r
	172	If Buffer != NULL and *Buffer == NULL, the output buffer is allocated\r
	173	from BS pool by ReadFile\r
	174	<br>\r
	175	If Buffer != NULL and *Buffer != NULL, the output buffer has been\r
	176	allocated by the caller and is being passed in.\r
	177	@param BufferSize Indicates the buffer size passed in, and on output the size\r
	178	required to complete the read\r
	179	@param AuthenticationStatus Indicates the authentication status of the data\r
	180	\r
	181	@retval EFI_SUCCESS\r
	182	@retval EFI_WARN_BUFFER_TOO_SMALL\r
	183	@retval EFI_OUT_OF_RESOURCES\r
184	@retval EFI_NOT_FOUND\r
185	@retval EFI_DEVICE_ERROR\r
186	@retval EFI_ACCESS_DENIED\r
187	\r
188	**/\r
189	typedef\r
190	EFI_STATUS\r
191	(EFIAPI *EFI_FV_READ_SECTION) (\r
192	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
193	IN EFI_GUID *NameGuid,\r
194	IN EFI_SECTION_TYPE SectionType,\r
195	IN UINTN SectionInstance,\r
196	IN OUT VOID **Buffer,\r
197	IN OUT UINTN *BufferSize,\r
198	OUT UINT32 *AuthenticationStatus\r
199	);\r
200	\r
201	typedef UINT32 EFI_FV_WRITE_POLICY;\r
202	\r
203	#define EFI_FV_UNRELIABLE_WRITE 0x00000000\r
204	#define EFI_FV_RELIABLE_WRITE 0x00000001\r
205	\r
206	typedef struct {\r
207	EFI_GUID *NameGuid;\r
208	EFI_FV_FILETYPE Type;\r
209	EFI_FV_FILE_ATTRIBUTES FileAttributes;\r
210	VOID *Buffer;\r
211	UINT32 BufferSize;\r
212	} EFI_FV_WRITE_FILE_DATA;\r
213	\r
214	/**\r
215	Write the supplied file (NameGuid) to the FV.\r
216	\r
217	@param This Calling context\r
218	@param NumberOfFiles Indicates the number of file records pointed to by FileData\r
219	@param WritePolicy Indicates the level of reliability of the write with respect to\r
220	things like power failure events.\r
221	@param FileData A pointer to an array of EFI_FV_WRITE_FILE_DATA structures. Each\r
222	element in the array indicates a file to write, and there are\r
223	NumberOfFiles elements in the input array.\r
224	\r
225	@retval EFI_SUCCESS\r
226	@retval EFI_OUT_OF_RESOURCES\r
227	@retval EFI_DEVICE_ERROR\r
228	@retval EFI_WRITE_PROTECTED\r
229	@retval EFI_NOT_FOUND\r
230	@retval EFI_INVALID_PARAMETER\r
231	\r
232	**/\r
233	typedef\r
234	EFI_STATUS\r
235	(EFIAPI *EFI_FV_WRITE_FILE) (\r
236	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
237	IN UINT32 NumberOfFiles,\r
238	IN EFI_FV_WRITE_POLICY WritePolicy,\r
239	IN EFI_FV_WRITE_FILE_DATA *FileData\r
240	);\r
241	\r
242	/**\r
243	Given the input key, search for the next matching file in the volume.\r
244	\r
245	@param This Calling context\r
246	@param Key Pointer to a caller allocated buffer that contains an implementation\r
247	specific key that is used to track where to begin searching on\r
248	successive calls.\r
249	@param FileType Indicates the file type to filter for\r
250	@param NameGuid Guid filename of the file found\r
251	@param Attributes Attributes of the file found\r
252	@param Size Size in bytes of the file found\r
253	\r
254	@retval EFI_SUCCESS\r
255	@retval EFI_NOT_FOUND\r
256	@retval EFI_DEVICE_ERROR\r
257	@retval EFI_ACCESS_DENIED\r
258	\r
259	**/\r
260	typedef\r
261	EFI_STATUS\r
262	(EFIAPI *EFI_FV_GET_NEXT_FILE) (\r
263	IN EFI_FIRMWARE_VOLUME_PROTOCOL *This,\r
264	IN OUT VOID *Key,\r
265	IN OUT EFI_FV_FILETYPE *FileType,\r
266	OUT EFI_GUID *NameGuid,\r
267	OUT EFI_FV_FILE_ATTRIBUTES *Attributes,\r
268	OUT UINTN *Size\r
269	);\r
270	\r
271	/**\r
272	@par Protocol Description:\r
273	The Firmware Volume Protocol provides file-level access to the firmware volume.\r
274	Each firmware volume driver must produce an instance of the Firmware Volume\r
275	Protocol if the firmware volume is to be visible to the system. The Firmware\r
276	Volume Protocol also provides mechanisms for determining and modifying some\r
277	attributes of the firmware volume.\r
278	\r
279	@param GetVolumeAttributes\r
280	Retrieves volume capabilities and current settings.\r
281	\r
282	@param SetVolumeAttributes\r
283	Modifies the current settings of the firmware volume.\r
284	\r
285	@param ReadFile\r
286	Reads an entire file from the firmware volume.\r
287	\r
288	@param ReadSection\r
289	Reads a single section from a file into a buffer.\r
290	\r
291	@param WriteFile\r
292	Writes an entire file into the firmware volume.\r
293	\r
294	@param GetNextFile\r
295	Provides service to allow searching the firmware volume.\r
296	\r
297	@param KeySize\r
298	Data field that indicates the size in bytes of the Key input buffer for\r
299	the GetNextFile() API.\r
300	\r
301	@param ParentHandle\r
302	Handle of the parent firmware volume.\r
303	\r
304	**/\r
305	struct _EFI_FIRMWARE_VOLUME_PROTOCOL {\r
306	EFI_FV_GET_ATTRIBUTES GetVolumeAttributes;\r
307	EFI_FV_SET_ATTRIBUTES SetVolumeAttributes;\r
308	EFI_FV_READ_FILE ReadFile;\r
309	EFI_FV_READ_SECTION ReadSection;\r
310	EFI_FV_WRITE_FILE WriteFile;\r
311	EFI_FV_GET_NEXT_FILE GetNextFile;\r
312	UINT32 KeySize;\r
313	EFI_HANDLE ParentHandle;\r
314	};\r
315	\r
316	extern EFI_GUID gEfiFirmwareVolumeProtocolGuid;\r
317	\r
318	#endif\r