projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| b9575d60 A |
1 | /** @file\r |
| 2 | DiskIo driver that layers it's self on every Block IO protocol in the system.\r | |
| 3 | DiskIo converts a block oriented device to a byte oriented device.\r | |
| 4 | \r | |
| 5 | Copyright (c) 2006 - 2007, Intel Corporation \r | |
| 6 | All rights reserved. This program and the accompanying materials \r | |
| 7 | are licensed and made available under the terms and conditions of the BSD License \r | |
| 8 | which accompanies this distribution. The full text of the license may be found at \r | |
| 9 | http://opensource.org/licenses/bsd-license.php \r | |
| 10 | \r | |
| 11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
| 12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
| 13 | \r | |
| 14 | **/\r | |
| 15 | \r | |
| 16 | #include <Uefi.h>\r | |
| 17 | #include <Protocol/BlockIo.h>\r | |
| 18 | #include <Protocol/ComponentName.h>\r | |
| 19 | #include <Protocol/DriverBinding.h>\r | |
| 20 | #include <Protocol/DiskIo.h>\r | |
| 21 | #include <Library/DebugLib.h>\r | |
| 22 | #include <Library/UefiDriverEntryPoint.h>\r | |
| 23 | #include <Library/UefiLib.h>\r | |
| 24 | #include <Library/BaseLib.h>\r | |
| 25 | #include <Library/BaseMemoryLib.h>\r | |
| 26 | #include <Library/MemoryAllocationLib.h>\r | |
| 27 | #include <Library/UefiBootServicesTableLib.h>\r | |
| 79840ee1 | 28 | \r |
| 29 | //\r | |
| b9575d60 | 30 | // Driver Binding Externs\r |
| 79840ee1 | 31 | //\r |
| b9575d60 A |
32 | extern EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding;\r |
| 33 | extern EFI_COMPONENT_NAME_PROTOCOL gDiskIoComponentName;\r | |
| 34 | \r | |
| 35 | \r | |
| 79840ee1 | 36 | \r |
| 37 | #define DISK_IO_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('d', 's', 'k', 'I')\r | |
| 38 | \r | |
| 39 | #define DATA_BUFFER_BLOCK_NUM (64)\r | |
| 40 | \r | |
| 41 | typedef struct {\r | |
| 42 | UINTN Signature;\r | |
| 43 | EFI_DISK_IO_PROTOCOL DiskIo;\r | |
| 44 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
| 45 | } DISK_IO_PRIVATE_DATA;\r | |
| 46 | \r | |
| 47 | #define DISK_IO_PRIVATE_DATA_FROM_THIS(a) CR (a, DISK_IO_PRIVATE_DATA, DiskIo, DISK_IO_PRIVATE_DATA_SIGNATURE)\r | |
| 48 | \r | |
| 49 | //\r | |
| 50 | // Global Variables\r | |
| 51 | //\r | |
| 52 | extern EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding;\r | |
| 53 | extern EFI_COMPONENT_NAME_PROTOCOL gDiskIoComponentName;\r | |
| 54 | \r | |
| 55 | //\r | |
| 56 | // Prototypes\r | |
| 57 | // Driver model protocol interface\r | |
| 58 | //\r | |
| 59 | EFI_STATUS\r | |
| 60 | EFIAPI\r | |
| 61 | DiskIoDriverBindingSupported (\r | |
| 62 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
| 63 | IN EFI_HANDLE ControllerHandle,\r | |
| 64 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
| 65 | );\r | |
| 66 | \r | |
| 67 | EFI_STATUS\r | |
| 68 | EFIAPI\r | |
| 69 | DiskIoDriverBindingStart (\r | |
| 70 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
| 71 | IN EFI_HANDLE ControllerHandle,\r | |
| 72 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
| 73 | );\r | |
| 74 | \r | |
| 75 | EFI_STATUS\r | |
| 76 | EFIAPI\r | |
| 77 | DiskIoDriverBindingStop (\r | |
| 78 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
| 79 | IN EFI_HANDLE ControllerHandle,\r | |
| 80 | IN UINTN NumberOfChildren,\r | |
| 81 | IN EFI_HANDLE *ChildHandleBuffer\r | |
| 82 | );\r | |
| 83 | \r | |
| 84 | //\r | |
| 85 | // Disk I/O Protocol Interface\r | |
| 86 | //\r | |
| 87 | EFI_STATUS\r | |
| 88 | EFIAPI\r | |
| 89 | DiskIoReadDisk (\r | |
| 90 | IN EFI_DISK_IO_PROTOCOL *This,\r | |
| 91 | IN UINT32 MediaId,\r | |
| 92 | IN UINT64 Offset,\r | |
| 93 | IN UINTN BufferSize,\r | |
| 94 | OUT VOID *Buffer\r | |
| 95 | );\r | |
| 96 | \r | |
| 97 | EFI_STATUS\r | |
| 98 | EFIAPI\r | |
| 99 | DiskIoWriteDisk (\r | |
| 100 | IN EFI_DISK_IO_PROTOCOL *This,\r | |
| 101 | IN UINT32 MediaId,\r | |
| 102 | IN UINT64 Offset,\r | |
| 103 | IN UINTN BufferSize,\r | |
| 104 | IN VOID *Buffer\r | |
| 105 | );\r | |
| 106 | \r | |
| 107 | //\r | |
| 108 | // EFI Component Name Functions\r | |
| 109 | //\r | |
| 110 | EFI_STATUS\r | |
| 111 | EFIAPI\r | |
| 112 | DiskIoComponentNameGetDriverName (\r | |
| 113 | IN EFI_COMPONENT_NAME_PROTOCOL *This,\r | |
| 114 | IN CHAR8 *Language,\r | |
| 115 | OUT CHAR16 **DriverName\r | |
| 116 | );\r | |
| 117 | \r | |
| 118 | EFI_STATUS\r | |
| 119 | EFIAPI\r | |
| 120 | DiskIoComponentNameGetControllerName (\r | |
| 121 | IN EFI_COMPONENT_NAME_PROTOCOL *This,\r | |
| 122 | IN EFI_HANDLE ControllerHandle,\r | |
| 123 | IN EFI_HANDLE ChildHandle OPTIONAL,\r | |
| 124 | IN CHAR8 *Language,\r | |
| 125 | OUT CHAR16 **ControllerName\r | |
| 126 | );\r | |
| 127 | \r |