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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 |
79840ee1 | 29 | \r |
30 | #define DISK_IO_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('d', 's', 'k', 'I')\r | |
31 | \r | |
32 | #define DATA_BUFFER_BLOCK_NUM (64)\r | |
33 | \r | |
34 | typedef struct {\r | |
35 | UINTN Signature;\r | |
36 | EFI_DISK_IO_PROTOCOL DiskIo;\r | |
37 | EFI_BLOCK_IO_PROTOCOL *BlockIo;\r | |
38 | } DISK_IO_PRIVATE_DATA;\r | |
39 | \r | |
40 | #define DISK_IO_PRIVATE_DATA_FROM_THIS(a) CR (a, DISK_IO_PRIVATE_DATA, DiskIo, DISK_IO_PRIVATE_DATA_SIGNATURE)\r | |
41 | \r | |
42 | //\r | |
43 | // Global Variables\r | |
44 | //\r | |
45 | extern EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding;\r | |
46 | extern EFI_COMPONENT_NAME_PROTOCOL gDiskIoComponentName;\r | |
47 | \r | |
48 | //\r | |
49 | // Prototypes\r | |
50 | // Driver model protocol interface\r | |
51 | //\r | |
52 | EFI_STATUS\r | |
53 | EFIAPI\r | |
54 | DiskIoDriverBindingSupported (\r | |
55 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
56 | IN EFI_HANDLE ControllerHandle,\r | |
57 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
58 | );\r | |
59 | \r | |
60 | EFI_STATUS\r | |
61 | EFIAPI\r | |
62 | DiskIoDriverBindingStart (\r | |
63 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
64 | IN EFI_HANDLE ControllerHandle,\r | |
65 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
66 | );\r | |
67 | \r | |
68 | EFI_STATUS\r | |
69 | EFIAPI\r | |
70 | DiskIoDriverBindingStop (\r | |
71 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
72 | IN EFI_HANDLE ControllerHandle,\r | |
73 | IN UINTN NumberOfChildren,\r | |
74 | IN EFI_HANDLE *ChildHandleBuffer\r | |
75 | );\r | |
76 | \r | |
77 | //\r | |
78 | // Disk I/O Protocol Interface\r | |
79 | //\r | |
80 | EFI_STATUS\r | |
81 | EFIAPI\r | |
82 | DiskIoReadDisk (\r | |
83 | IN EFI_DISK_IO_PROTOCOL *This,\r | |
84 | IN UINT32 MediaId,\r | |
85 | IN UINT64 Offset,\r | |
86 | IN UINTN BufferSize,\r | |
87 | OUT VOID *Buffer\r | |
88 | );\r | |
89 | \r | |
90 | EFI_STATUS\r | |
91 | EFIAPI\r | |
92 | DiskIoWriteDisk (\r | |
93 | IN EFI_DISK_IO_PROTOCOL *This,\r | |
94 | IN UINT32 MediaId,\r | |
95 | IN UINT64 Offset,\r | |
96 | IN UINTN BufferSize,\r | |
97 | IN VOID *Buffer\r | |
98 | );\r | |
99 | \r | |
100 | //\r | |
101 | // EFI Component Name Functions\r | |
102 | //\r | |
103 | EFI_STATUS\r | |
104 | EFIAPI\r | |
105 | DiskIoComponentNameGetDriverName (\r | |
106 | IN EFI_COMPONENT_NAME_PROTOCOL *This,\r | |
107 | IN CHAR8 *Language,\r | |
108 | OUT CHAR16 **DriverName\r | |
109 | );\r | |
110 | \r | |
111 | EFI_STATUS\r | |
112 | EFIAPI\r | |
113 | DiskIoComponentNameGetControllerName (\r | |
114 | IN EFI_COMPONENT_NAME_PROTOCOL *This,\r | |
115 | IN EFI_HANDLE ControllerHandle,\r | |
116 | IN EFI_HANDLE ChildHandle OPTIONAL,\r | |
117 | IN CHAR8 *Language,\r | |
118 | OUT CHAR16 **ControllerName\r | |
119 | );\r | |
120 | \r |