projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 20752cb8 HW |
1 | /** @file\r |
| 2 | The header file of RamDiskDxe driver.\r | |
| 3 | \r | |
| 4 | Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
| 5 | This program and the accompanying materials\r | |
| 6 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 7 | which accompanies this distribution. The full text of the license may be found at\r | |
| 8 | http://opensource.org/licenses/bsd-license.php\r | |
| 9 | \r | |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | \r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #ifndef _RAM_DISK_IMPL_H_\r | |
| 16 | #define _RAM_DISK_IMPL_H_\r | |
| 17 | \r | |
| 18 | #include <Uefi.h>\r | |
| 19 | #include <Library/BaseLib.h>\r | |
| 20 | #include <Library/BaseMemoryLib.h>\r | |
| 21 | #include <Library/DebugLib.h>\r | |
| 22 | #include <Library/UefiLib.h>\r | |
| 23 | #include <Library/UefiDriverEntryPoint.h>\r | |
| 24 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 25 | #include <Library/UefiHiiServicesLib.h>\r | |
| 26 | #include <Library/MemoryAllocationLib.h>\r | |
| 27 | #include <Library/HiiLib.h>\r | |
| 28 | #include <Library/FileExplorerLib.h>\r | |
| 29 | #include <Library/DevicePathLib.h>\r | |
| 30 | #include <Library/PrintLib.h>\r | |
| 31 | #include <Protocol/RamDisk.h>\r | |
| 32 | #include <Protocol/BlockIo.h>\r | |
| 216fefa3 | 33 | #include <Protocol/BlockIo2.h>\r |
| 20752cb8 HW |
34 | #include <Protocol/HiiConfigAccess.h>\r |
| 35 | #include <Protocol/SimpleFileSystem.h>\r | |
| 36 | #include <Guid/MdeModuleHii.h>\r | |
| 37 | #include <Guid/RamDiskHii.h>\r | |
| 38 | #include <Guid/FileInfo.h>\r | |
| 39 | \r | |
| 40 | #include "RamDiskNVData.h"\r | |
| 41 | \r | |
| 42 | ///\r | |
| 43 | /// RAM disk general definitions and declarations\r | |
| 44 | ///\r | |
| 45 | \r | |
| 46 | //\r | |
| 47 | // Block size for RAM disk\r | |
| 48 | //\r | |
| 49 | #define RAM_DISK_BLOCK_SIZE 512\r | |
| 50 | \r | |
| 51 | //\r | |
| 52 | // Iterate through the doule linked list. NOT delete safe\r | |
| 53 | //\r | |
| 54 | #define EFI_LIST_FOR_EACH(Entry, ListHead) \\r | |
| 55 | for(Entry = (ListHead)->ForwardLink; Entry != (ListHead); Entry = Entry->ForwardLink)\r | |
| 56 | \r | |
| 57 | //\r | |
| 58 | // Iterate through the doule linked list. This is delete-safe.\r | |
| 59 | // Do not touch NextEntry\r | |
| 60 | //\r | |
| 61 | #define EFI_LIST_FOR_EACH_SAFE(Entry, NextEntry, ListHead) \\r | |
| 62 | for(Entry = (ListHead)->ForwardLink, NextEntry = Entry->ForwardLink;\\r | |
| 63 | Entry != (ListHead); Entry = NextEntry, NextEntry = Entry->ForwardLink)\r | |
| 64 | \r | |
| 65 | //\r | |
| 66 | // RamDiskDxe driver maintains a list of registered RAM disks.\r | |
| 67 | //\r | |
| 68 | extern LIST_ENTRY RegisteredRamDisks;\r | |
| 69 | extern UINTN ListEntryNum;\r | |
| 70 | \r | |
| 71 | //\r | |
| 72 | // RAM Disk create method.\r | |
| 73 | //\r | |
| 74 | typedef enum _RAM_DISK_CREATE_METHOD {\r | |
| 75 | RamDiskCreateOthers = 0,\r | |
| 76 | RamDiskCreateHii\r | |
| 77 | } RAM_DISK_CREATE_METHOD;\r | |
| 78 | \r | |
| 79 | //\r | |
| 80 | // RamDiskDxe driver maintains a list of registered RAM disks.\r | |
| 81 | // The struct contains the list entry and the information of each RAM\r | |
| 82 | // disk\r | |
| 83 | //\r | |
| 84 | typedef struct {\r | |
| 85 | UINTN Signature;\r | |
| 86 | \r | |
| 87 | EFI_HANDLE Handle;\r | |
| 88 | \r | |
| 89 | EFI_BLOCK_IO_PROTOCOL BlockIo;\r | |
| 216fefa3 | 90 | EFI_BLOCK_IO2_PROTOCOL BlockIo2;\r |
| 20752cb8 HW |
91 | EFI_BLOCK_IO_MEDIA Media;\r |
| 92 | EFI_DEVICE_PATH_PROTOCOL *DevicePath;\r | |
| 93 | \r | |
| 94 | UINT64 StartingAddr;\r | |
| 95 | UINT64 Size;\r | |
| 96 | EFI_GUID TypeGuid;\r | |
| 97 | UINT16 InstanceNumber;\r | |
| 98 | RAM_DISK_CREATE_METHOD CreateMethod;\r | |
| 99 | \r | |
| 100 | LIST_ENTRY ThisInstance;\r | |
| 101 | } RAM_DISK_PRIVATE_DATA;\r | |
| 102 | \r | |
| 103 | #define RAM_DISK_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'D', 'S', 'K')\r | |
| 104 | #define RAM_DISK_PRIVATE_FROM_BLKIO(a) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo, RAM_DISK_PRIVATE_DATA_SIGNATURE)\r | |
| 216fefa3 | 105 | #define RAM_DISK_PRIVATE_FROM_BLKIO2(a) CR (a, RAM_DISK_PRIVATE_DATA, BlockIo2, RAM_DISK_PRIVATE_DATA_SIGNATURE)\r |
| 20752cb8 HW |
106 | #define RAM_DISK_PRIVATE_FROM_THIS(a) CR (a, RAM_DISK_PRIVATE_DATA, ThisInstance, RAM_DISK_PRIVATE_DATA_SIGNATURE)\r |
| 107 | \r | |
| 108 | ///\r | |
| 109 | /// RAM disk HII-related definitions and declarations\r | |
| 110 | ///\r | |
| 111 | \r | |
| 112 | //\r | |
| 113 | // Tool generated IFR binary data and String package data\r | |
| 114 | //\r | |
| 115 | extern UINT8 RamDiskHiiBin[];\r | |
| 116 | extern UINT8 RamDiskDxeStrings[];\r | |
| 117 | \r | |
| 118 | typedef struct {\r | |
| 119 | VENDOR_DEVICE_PATH VendorDevicePath;\r | |
| 120 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
| 121 | } HII_VENDOR_DEVICE_PATH;\r | |
| 122 | \r | |
| 123 | typedef struct {\r | |
| 124 | UINTN Signature;\r | |
| 125 | \r | |
| 126 | EFI_HII_CONFIG_ACCESS_PROTOCOL ConfigAccess;\r | |
| 127 | EFI_HANDLE DriverHandle;\r | |
| 128 | EFI_HII_HANDLE HiiHandle;\r | |
| 129 | } RAM_DISK_CONFIG_PRIVATE_DATA;\r | |
| 130 | \r | |
| 131 | extern RAM_DISK_CONFIG_PRIVATE_DATA mRamDiskConfigPrivateDataTemplate;\r | |
| 132 | \r | |
| 133 | #define RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('R', 'C', 'F', 'G')\r | |
| 134 | #define RAM_DISK_CONFIG_PRIVATE_FROM_THIS(a) CR (a, RAM_DISK_CONFIG_PRIVATE_DATA, ConfigAccess, RAM_DISK_CONFIG_PRIVATE_DATA_SIGNATURE)\r | |
| 135 | \r | |
| 136 | #define RAM_DISK_LIST_VAR_OFFSET ((UINT16) OFFSET_OF (RAM_DISK_CONFIGURATION, RamDiskList))\r | |
| 137 | \r | |
| 138 | /**\r | |
| 139 | Register a RAM disk with specified address, size and type.\r | |
| 140 | \r | |
| 141 | @param[in] RamDiskBase The base address of registered RAM disk.\r | |
| 142 | @param[in] RamDiskSize The size of registered RAM disk.\r | |
| 143 | @param[in] RamDiskType The type of registered RAM disk. The GUID can be\r | |
| 144 | any of the values defined in section 9.3.6.9, or a\r | |
| 145 | vendor defined GUID.\r | |
| 146 | @param[in] ParentDevicePath\r | |
| 147 | Pointer to the parent device path. If there is no\r | |
| 148 | parent device path then ParentDevicePath is NULL.\r | |
| 149 | @param[out] DevicePath On return, points to a pointer to the device path\r | |
| 150 | of the RAM disk device.\r | |
| 151 | If ParentDevicePath is not NULL, the returned\r | |
| 152 | DevicePath is created by appending a RAM disk node\r | |
| 153 | to the parent device path. If ParentDevicePath is\r | |
| 154 | NULL, the returned DevicePath is a RAM disk device\r | |
| 155 | path without appending. This function is\r | |
| 156 | responsible for allocating the buffer DevicePath\r | |
| 157 | with the boot service AllocatePool().\r | |
| 158 | \r | |
| 159 | @retval EFI_SUCCESS The RAM disk is registered successfully.\r | |
| 160 | @retval EFI_INVALID_PARAMETER DevicePath or RamDiskType is NULL.\r | |
| 161 | RamDiskSize is 0.\r | |
| 162 | @retval EFI_ALREADY_STARTED A Device Path Protocol instance to be created\r | |
| 163 | is already present in the handle database.\r | |
| 164 | @retval EFI_OUT_OF_RESOURCES The RAM disk register operation fails due to\r | |
| 165 | resource limitation.\r | |
| 166 | \r | |
| 167 | **/\r | |
| 168 | EFI_STATUS\r | |
| 169 | EFIAPI\r | |
| 170 | RamDiskRegister (\r | |
| 171 | IN UINT64 RamDiskBase,\r | |
| 172 | IN UINT64 RamDiskSize,\r | |
| 173 | IN EFI_GUID *RamDiskType,\r | |
| 174 | IN EFI_DEVICE_PATH *ParentDevicePath OPTIONAL,\r | |
| 175 | OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
| 176 | );\r | |
| 177 | \r | |
| 178 | /**\r | |
| 179 | Unregister a RAM disk specified by DevicePath.\r | |
| 180 | \r | |
| 181 | @param[in] DevicePath A pointer to the device path that describes a RAM\r | |
| 182 | Disk device.\r | |
| 183 | \r | |
| 184 | @retval EFI_SUCCESS The RAM disk is unregistered successfully.\r | |
| 185 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
| 186 | @retval EFI_UNSUPPORTED The device specified by DevicePath is not a\r | |
| 187 | valid ramdisk device path and not supported\r | |
| 188 | by the driver.\r | |
| 189 | @retval EFI_NOT_FOUND The RAM disk pointed by DevicePath doesn't\r | |
| 190 | exist.\r | |
| 191 | \r | |
| 192 | **/\r | |
| 193 | EFI_STATUS\r | |
| 194 | EFIAPI\r | |
| 195 | RamDiskUnregister (\r | |
| 196 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath\r | |
| 197 | );\r | |
| 198 | \r | |
| 199 | /**\r | |
| 200 | Initialize the BlockIO protocol of a RAM disk device.\r | |
| 201 | \r | |
| 202 | @param[in] PrivateData Points to RAM disk private data.\r | |
| 203 | \r | |
| 204 | **/\r | |
| 205 | VOID\r | |
| 206 | RamDiskInitBlockIo (\r | |
| 207 | IN RAM_DISK_PRIVATE_DATA *PrivateData\r | |
| 208 | );\r | |
| 209 | \r | |
| 210 | /**\r | |
| 211 | Reset the Block Device.\r | |
| 212 | \r | |
| 213 | @param[in] This Indicates a pointer to the calling context.\r | |
| 214 | @param[in] ExtendedVerification\r | |
| 215 | Driver may perform diagnostics on reset.\r | |
| 216 | \r | |
| 217 | @retval EFI_SUCCESS The device was reset.\r | |
| 218 | @retval EFI_DEVICE_ERROR The device is not functioning properly and\r | |
| 219 | could not be reset.\r | |
| 220 | \r | |
| 221 | **/\r | |
| 222 | EFI_STATUS\r | |
| 223 | EFIAPI\r | |
| 224 | RamDiskBlkIoReset (\r | |
| 225 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
| 226 | IN BOOLEAN ExtendedVerification\r | |
| 227 | );\r | |
| 228 | \r | |
| 229 | /**\r | |
| 230 | Read BufferSize bytes from Lba into Buffer.\r | |
| 231 | \r | |
| 232 | @param[in] This Indicates a pointer to the calling context.\r | |
| 233 | @param[in] MediaId Id of the media, changes every time the media is\r | |
| 234 | replaced.\r | |
| 235 | @param[in] Lba The starting Logical Block Address to read from.\r | |
| 236 | @param[in] BufferSize Size of Buffer, must be a multiple of device block\r | |
| 237 | size.\r | |
| 238 | @param[out] Buffer A pointer to the destination buffer for the data.\r | |
| 239 | The caller is responsible for either having\r | |
| 240 | implicit or explicit ownership of the buffer.\r | |
| 241 | \r | |
| 242 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
| 243 | @retval EFI_DEVICE_ERROR The device reported an error while performing\r | |
| 244 | the read.\r | |
| 245 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 246 | @retval EFI_MEDIA_CHANGED The MediaId does not matched the current\r | |
| 247 | device.\r | |
| 248 | @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block\r | |
| 249 | size of the device.\r | |
| 250 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not\r | |
| 251 | valid, or the buffer is not on proper alignment.\r | |
| 252 | \r | |
| 253 | **/\r | |
| 254 | EFI_STATUS\r | |
| 255 | EFIAPI\r | |
| 256 | RamDiskBlkIoReadBlocks (\r | |
| 257 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
| 258 | IN UINT32 MediaId,\r | |
| 259 | IN EFI_LBA Lba,\r | |
| 260 | IN UINTN BufferSize,\r | |
| 261 | OUT VOID *Buffer\r | |
| 262 | );\r | |
| 263 | \r | |
| 264 | /**\r | |
| 265 | Write BufferSize bytes from Lba into Buffer.\r | |
| 266 | \r | |
| 267 | @param[in] This Indicates a pointer to the calling context.\r | |
| 268 | @param[in] MediaId The media ID that the write request is for.\r | |
| 269 | @param[in] Lba The starting logical block address to be written.\r | |
| 270 | The caller is responsible for writing to only\r | |
| 271 | legitimate locations.\r | |
| 272 | @param[in] BufferSize Size of Buffer, must be a multiple of device block\r | |
| 273 | size.\r | |
| 274 | @param[in] Buffer A pointer to the source buffer for the data.\r | |
| 275 | \r | |
| 276 | @retval EFI_SUCCESS The data was written correctly to the device.\r | |
| 277 | @retval EFI_WRITE_PROTECTED The device can not be written to.\r | |
| 278 | @retval EFI_DEVICE_ERROR The device reported an error while performing\r | |
| 279 | the write.\r | |
| 280 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 281 | @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current\r | |
| 282 | device.\r | |
| 283 | @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block\r | |
| 284 | size of the device.\r | |
| 285 | @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not\r | |
| 286 | valid, or the buffer is not on proper alignment.\r | |
| 287 | \r | |
| 288 | **/\r | |
| 289 | EFI_STATUS\r | |
| 290 | EFIAPI\r | |
| 291 | RamDiskBlkIoWriteBlocks (\r | |
| 292 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
| 293 | IN UINT32 MediaId,\r | |
| 294 | IN EFI_LBA Lba,\r | |
| 295 | IN UINTN BufferSize,\r | |
| 296 | IN VOID *Buffer\r | |
| 297 | );\r | |
| 298 | \r | |
| 299 | /**\r | |
| 300 | Flush the Block Device.\r | |
| 301 | \r | |
| 302 | @param[in] This Indicates a pointer to the calling context.\r | |
| 303 | \r | |
| 304 | @retval EFI_SUCCESS All outstanding data was written to the device.\r | |
| 305 | @retval EFI_DEVICE_ERROR The device reported an error while writting\r | |
| 306 | back the data\r | |
| 307 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 308 | \r | |
| 309 | **/\r | |
| 310 | EFI_STATUS\r | |
| 311 | EFIAPI\r | |
| 312 | RamDiskBlkIoFlushBlocks (\r | |
| 313 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
| 314 | );\r | |
| 315 | \r | |
| 216fefa3 HW |
316 | /**\r |
| 317 | Resets the block device hardware.\r | |
| 318 | \r | |
| 319 | @param[in] This The pointer of EFI_BLOCK_IO2_PROTOCOL.\r | |
| 320 | @param[in] ExtendedVerification The flag about if extend verificate.\r | |
| 321 | \r | |
| 322 | @retval EFI_SUCCESS The device was reset.\r | |
| 323 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly\r | |
| 324 | and could not be reset.\r | |
| 325 | \r | |
| 326 | **/\r | |
| 327 | EFI_STATUS\r | |
| 328 | EFIAPI\r | |
| 329 | RamDiskBlkIo2Reset (\r | |
| 330 | IN EFI_BLOCK_IO2_PROTOCOL *This,\r | |
| 331 | IN BOOLEAN ExtendedVerification\r | |
| 332 | );\r | |
| 333 | \r | |
| 334 | /**\r | |
| 335 | Reads the requested number of blocks from the device.\r | |
| 336 | \r | |
| 337 | @param[in] This Indicates a pointer to the calling context.\r | |
| 338 | @param[in] MediaId The media ID that the read request is for.\r | |
| 339 | @param[in] Lba The starting logical block address to read\r | |
| 340 | from on the device.\r | |
| 341 | @param[in, out] Token A pointer to the token associated with the\r | |
| 342 | transaction.\r | |
| 343 | @param[in] BufferSize The size of the Buffer in bytes. This must be\r | |
| 344 | a multiple of the intrinsic block size of the\r | |
| 345 | device.\r | |
| 346 | @param[out] Buffer A pointer to the destination buffer for the\r | |
| 347 | data. The caller is responsible for either\r | |
| 348 | having implicit or explicit ownership of the\r | |
| 349 | buffer.\r | |
| 350 | \r | |
| 351 | @retval EFI_SUCCESS The read request was queued if Token->Event\r | |
| 352 | is not NULL. The data was read correctly from\r | |
| 353 | the device if the Token->Event is NULL.\r | |
| 354 | @retval EFI_DEVICE_ERROR The device reported an error while attempting\r | |
| 355 | to perform the read operation.\r | |
| 356 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 357 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
| 358 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of\r | |
| 359 | the intrinsic block size of the device.\r | |
| 360 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not\r | |
| 361 | valid, or the buffer is not on proper\r | |
| 362 | alignment.\r | |
| 363 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r | |
| 364 | lack of resources.\r | |
| 365 | \r | |
| 366 | **/\r | |
| 367 | EFI_STATUS\r | |
| 368 | EFIAPI\r | |
| 369 | RamDiskBlkIo2ReadBlocksEx (\r | |
| 370 | IN EFI_BLOCK_IO2_PROTOCOL *This,\r | |
| 371 | IN UINT32 MediaId,\r | |
| 372 | IN EFI_LBA Lba,\r | |
| 373 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
| 374 | IN UINTN BufferSize,\r | |
| 375 | OUT VOID *Buffer\r | |
| 376 | );\r | |
| 377 | \r | |
| 378 | /**\r | |
| 379 | Writes a specified number of blocks to the device.\r | |
| 380 | \r | |
| 381 | @param[in] This Indicates a pointer to the calling context.\r | |
| 382 | @param[in] MediaId The media ID that the write request is for.\r | |
| 383 | @param[in] Lba The starting logical block address to be\r | |
| 384 | written. The caller is responsible for\r | |
| 385 | writing to only legitimate locations.\r | |
| 386 | @param[in, out] Token A pointer to the token associated with the\r | |
| 387 | transaction.\r | |
| 388 | @param[in] BufferSize The size in bytes of Buffer. This must be a\r | |
| 389 | multiple of the intrinsic block size of the\r | |
| 390 | device.\r | |
| 391 | @param[in] Buffer A pointer to the source buffer for the data.\r | |
| 392 | \r | |
| 393 | @retval EFI_SUCCESS The write request was queued if Event is not\r | |
| 394 | NULL. The data was written correctly to the\r | |
| 395 | device if the Event is NULL.\r | |
| 396 | @retval EFI_WRITE_PROTECTED The device cannot be written to.\r | |
| 397 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 398 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
| 399 | @retval EFI_DEVICE_ERROR The device reported an error while attempting\r | |
| 400 | to perform the write operation.\r | |
| 401 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of\r | |
| 402 | the intrinsic block size of the device.\r | |
| 403 | @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not\r | |
| 404 | valid, or the buffer is not on proper\r | |
| 405 | alignment.\r | |
| 406 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r | |
| 407 | lack of resources.\r | |
| 408 | \r | |
| 409 | **/\r | |
| 410 | EFI_STATUS\r | |
| 411 | EFIAPI\r | |
| 412 | RamDiskBlkIo2WriteBlocksEx (\r | |
| 413 | IN EFI_BLOCK_IO2_PROTOCOL *This,\r | |
| 414 | IN UINT32 MediaId,\r | |
| 415 | IN EFI_LBA Lba,\r | |
| 416 | IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r | |
| 417 | IN UINTN BufferSize,\r | |
| 418 | IN VOID *Buffer\r | |
| 419 | );\r | |
| 420 | \r | |
| 421 | /**\r | |
| 422 | Flushes all modified data to a physical block device.\r | |
| 423 | \r | |
| 424 | @param[in] This Indicates a pointer to the calling context.\r | |
| 425 | @param[in, out] Token A pointer to the token associated with the\r | |
| 426 | transaction.\r | |
| 427 | \r | |
| 428 | @retval EFI_SUCCESS The flush request was queued if Event is not\r | |
| 429 | NULL. All outstanding data was written\r | |
| 430 | correctly to the device if the Event is NULL.\r | |
| 431 | @retval EFI_DEVICE_ERROR The device reported an error while attempting\r | |
| 432 | to write data.\r | |
| 433 | @retval EFI_WRITE_PROTECTED The device cannot be written to.\r | |
| 434 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
| 435 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
| 436 | @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r | |
| 437 | lack of resources.\r | |
| 438 | \r | |
| 439 | **/\r | |
| 440 | EFI_STATUS\r | |
| 441 | EFIAPI\r | |
| 442 | RamDiskBlkIo2FlushBlocksEx (\r | |
| 443 | IN EFI_BLOCK_IO2_PROTOCOL *This,\r | |
| 444 | IN OUT EFI_BLOCK_IO2_TOKEN *Token\r | |
| 445 | );\r | |
| 446 | \r | |
| 20752cb8 HW |
447 | /**\r |
| 448 | This function publish the RAM disk configuration Form.\r | |
| 449 | \r | |
| 450 | @param[in, out] ConfigPrivateData\r | |
| 451 | Points to RAM disk configuration private data.\r | |
| 452 | \r | |
| 453 | @retval EFI_SUCCESS HII Form is installed successfully.\r | |
| 454 | @retval EFI_OUT_OF_RESOURCES Not enough resource for HII Form installation.\r | |
| 455 | @retval Others Other errors as indicated.\r | |
| 456 | \r | |
| 457 | **/\r | |
| 458 | EFI_STATUS\r | |
| 459 | InstallRamDiskConfigForm (\r | |
| 460 | IN OUT RAM_DISK_CONFIG_PRIVATE_DATA *ConfigPrivateData\r | |
| 461 | );\r | |
| 462 | \r | |
| 463 | /**\r | |
| 464 | This function removes RAM disk configuration Form.\r | |
| 465 | \r | |
| 466 | @param[in, out] ConfigPrivateData\r | |
| 467 | Points to RAM disk configuration private data.\r | |
| 468 | \r | |
| 469 | **/\r | |
| 470 | VOID\r | |
| 471 | UninstallRamDiskConfigForm (\r | |
| 472 | IN OUT RAM_DISK_CONFIG_PRIVATE_DATA *ConfigPrivateData\r | |
| 473 | );\r | |
| 474 | \r | |
| 475 | /**\r | |
| 476 | Unregister all registered RAM disks.\r | |
| 477 | \r | |
| 478 | **/\r | |
| 479 | VOID\r | |
| 480 | UnregisterAllRamDisks (\r | |
| 481 | VOID\r | |
| 482 | );\r | |
| 483 | \r | |
| 484 | /**\r | |
| 485 | This function allows a caller to extract the current configuration for one\r | |
| 486 | or more named elements from the target driver.\r | |
| 487 | \r | |
| 488 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
| 489 | @param[in] Request A null-terminated Unicode string in\r | |
| 490 | <ConfigRequest> format.\r | |
| 491 | @param[out] Progress On return, points to a character in the Request\r | |
| 492 | string. Points to the string's null terminator if\r | |
| 493 | request was successful. Points to the most recent\r | |
| 494 | '&' before the first failing name/value pair (or\r | |
| 495 | the beginning of the string if the failure is in\r | |
| 496 | the first name/value pair) if the request was not\r | |
| 497 | successful.\r | |
| 498 | @param[out] Results A null-terminated Unicode string in\r | |
| 499 | <ConfigAltResp> format which has all values filled\r | |
| 500 | in for the names in the Request string. String to\r | |
| 501 | be allocated by the called function.\r | |
| 502 | \r | |
| 503 | @retval EFI_SUCCESS The Results is filled with the requested\r | |
| 504 | values.\r | |
| 505 | @retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.\r | |
| 506 | @retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.\r | |
| 507 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in\r | |
| 508 | this driver.\r | |
| 509 | \r | |
| 510 | **/\r | |
| 511 | EFI_STATUS\r | |
| 512 | EFIAPI\r | |
| 513 | RamDiskExtractConfig (\r | |
| 514 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
| 515 | IN CONST EFI_STRING Request,\r | |
| 516 | OUT EFI_STRING *Progress,\r | |
| 517 | OUT EFI_STRING *Results\r | |
| 518 | );\r | |
| 519 | \r | |
| 520 | /**\r | |
| 521 | This function processes the results of changes in configuration.\r | |
| 522 | \r | |
| 523 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
| 524 | @param[in] Configuration A null-terminated Unicode string in <ConfigResp>\r | |
| 525 | format.\r | |
| 526 | @param[out] Progress A pointer to a string filled in with the offset of\r | |
| 527 | the most recent '&' before the first failing\r | |
| 528 | name/value pair (or the beginning of the string if\r | |
| 529 | the failure is in the first name/value pair) or\r | |
| 530 | the terminating NULL if all was successful.\r | |
| 531 | \r | |
| 532 | @retval EFI_SUCCESS The Results is processed successfully.\r | |
| 533 | @retval EFI_INVALID_PARAMETER Configuration is NULL.\r | |
| 534 | @retval EFI_NOT_FOUND Routing data doesn't match any storage in\r | |
| 535 | this driver.\r | |
| 536 | \r | |
| 537 | **/\r | |
| 538 | EFI_STATUS\r | |
| 539 | EFIAPI\r | |
| 540 | RamDiskRouteConfig (\r | |
| 541 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
| 542 | IN CONST EFI_STRING Configuration,\r | |
| 543 | OUT EFI_STRING *Progress\r | |
| 544 | );\r | |
| 545 | \r | |
| 546 | /**\r | |
| 547 | This function processes the results of changes in configuration.\r | |
| 548 | \r | |
| 549 | @param[in] This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.\r | |
| 550 | @param[in] Action Specifies the type of action taken by the browser.\r | |
| 551 | @param[in] QuestionId A unique value which is sent to the original\r | |
| 552 | exporting driver so that it can identify the type\r | |
| 553 | of data to expect.\r | |
| 554 | @param[in] Type The type of value for the question.\r | |
| 555 | @param[in] Value A pointer to the data being sent to the original\r | |
| 556 | exporting driver.\r | |
| 557 | @param[out] ActionRequest On return, points to the action requested by the\r | |
| 558 | callback function.\r | |
| 559 | \r | |
| 560 | @retval EFI_SUCCESS The callback successfully handled the action.\r | |
| 561 | @retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the\r | |
| 562 | variable and its data.\r | |
| 563 | @retval EFI_DEVICE_ERROR The variable could not be saved.\r | |
| 564 | @retval EFI_UNSUPPORTED The specified Action is not supported by the\r | |
| 565 | callback.\r | |
| 566 | \r | |
| 567 | **/\r | |
| 568 | EFI_STATUS\r | |
| 569 | EFIAPI\r | |
| 570 | RamDiskCallback (\r | |
| 571 | IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,\r | |
| 572 | IN EFI_BROWSER_ACTION Action,\r | |
| 573 | IN EFI_QUESTION_ID QuestionId,\r | |
| 574 | IN UINT8 Type,\r | |
| 575 | IN EFI_IFR_TYPE_VALUE *Value,\r | |
| 576 | OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest\r | |
| 577 | );\r | |
| 578 | \r | |
| 579 | \r | |
| 580 | /**\r | |
| 581 | This function gets the file information from an open file descriptor,\r | |
| 582 | and stores it in a buffer allocated from pool.\r | |
| 583 | \r | |
| 584 | @param[in] FHand File Handle.\r | |
| 585 | \r | |
| 586 | @return A pointer to a buffer with file information or NULL is returned.\r | |
| 587 | \r | |
| 588 | **/\r | |
| 589 | EFI_FILE_INFO *\r | |
| 590 | FileInfo (\r | |
| 591 | IN EFI_FILE_HANDLE FHand\r | |
| 592 | );\r | |
| 593 | \r | |
| 594 | \r | |
| 595 | /**\r | |
| 596 | This function will open a file or directory referenced by DevicePath.\r | |
| 597 | \r | |
| 598 | This function opens a file with the open mode according to the file path. The\r | |
| 599 | Attributes is valid only for EFI_FILE_MODE_CREATE.\r | |
| 600 | \r | |
| 601 | @param[in, out] FilePath On input, the device path to the file.\r | |
| 602 | On output, the remaining device path.\r | |
| 603 | @param[out] FileHandle Pointer to the file handle.\r | |
| 604 | @param[in] OpenMode The mode to open the file with.\r | |
| 605 | @param[in] Attributes The file's file attributes.\r | |
| 606 | \r | |
| 607 | @retval EFI_SUCCESS The information was set.\r | |
| 608 | @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.\r | |
| 609 | @retval EFI_UNSUPPORTED Could not open the file path.\r | |
| 610 | @retval EFI_NOT_FOUND The specified file could not be found on the\r | |
| 611 | device or the file system could not be found\r | |
| 612 | on the device.\r | |
| 613 | @retval EFI_NO_MEDIA The device has no medium.\r | |
| 614 | @retval EFI_MEDIA_CHANGED The device has a different medium in it or\r | |
| 615 | the medium is no longer supported.\r | |
| 616 | @retval EFI_DEVICE_ERROR The device reported an error.\r | |
| 617 | @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.\r | |
| 618 | @retval EFI_WRITE_PROTECTED The file or medium is write protected.\r | |
| 619 | @retval EFI_ACCESS_DENIED The file was opened read only.\r | |
| 620 | @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open\r | |
| 621 | the file.\r | |
| 622 | @retval EFI_VOLUME_FULL The volume is full.\r | |
| 623 | **/\r | |
| 624 | EFI_STATUS\r | |
| 625 | EFIAPI\r | |
| 626 | OpenFileByDevicePath(\r | |
| 627 | IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,\r | |
| 628 | OUT EFI_FILE_HANDLE *FileHandle,\r | |
| 629 | IN UINT64 OpenMode,\r | |
| 630 | IN UINT64 Attributes\r | |
| 631 | );\r | |
| 632 | \r | |
| 633 | #endif\r |