1e57a462 |
1 | /** @file NorFlashBlockIoDxe.c\r |
2 | \r |
3d783074 |
3 | Copyright (c) 2011-2013, ARM Ltd. All rights reserved.<BR>\r |
1e57a462 |
4 | \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 | #include <Library/BaseMemoryLib.h>\r |
16 | #include <Library/UefiBootServicesTableLib.h>\r |
17 | \r |
18 | #include "NorFlashDxe.h"\r |
19 | \r |
20 | //\r |
21 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.Reset\r |
22 | //\r |
23 | EFI_STATUS\r |
24 | EFIAPI\r |
25 | NorFlashBlockIoReset (\r |
26 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
27 | IN BOOLEAN ExtendedVerification\r |
28 | )\r |
29 | {\r |
30 | NOR_FLASH_INSTANCE *Instance;\r |
31 | \r |
32 | Instance = INSTANCE_FROM_BLKIO_THIS(This);\r |
33 | \r |
34 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReset(MediaId=0x%x)\n", This->Media->MediaId));\r |
35 | \r |
36 | return NorFlashReset (Instance);\r |
37 | }\r |
38 | \r |
39 | //\r |
40 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks\r |
41 | //\r |
42 | EFI_STATUS\r |
43 | EFIAPI\r |
44 | NorFlashBlockIoReadBlocks (\r |
45 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
46 | IN UINT32 MediaId,\r |
47 | IN EFI_LBA Lba,\r |
48 | IN UINTN BufferSizeInBytes,\r |
49 | OUT VOID *Buffer\r |
50 | )\r |
51 | {\r |
52 | NOR_FLASH_INSTANCE *Instance;\r |
53 | EFI_STATUS Status;\r |
3d783074 |
54 | EFI_BLOCK_IO_MEDIA *Media;\r |
55 | \r |
56 | if (This == NULL) {\r |
57 | return EFI_INVALID_PARAMETER;\r |
58 | }\r |
1e57a462 |
59 | \r |
60 | Instance = INSTANCE_FROM_BLKIO_THIS(This);\r |
3d783074 |
61 | Media = This->Media;\r |
1e57a462 |
62 | \r |
63 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReadBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));\r |
64 | \r |
3d783074 |
65 | if (!Media) {\r |
66 | Status = EFI_INVALID_PARAMETER;\r |
67 | } else if (!Media->MediaPresent) {\r |
1e57a462 |
68 | Status = EFI_NO_MEDIA;\r |
3d783074 |
69 | } else if (Media->MediaId != MediaId) {\r |
1e57a462 |
70 | Status = EFI_MEDIA_CHANGED;\r |
3d783074 |
71 | } else if ((Media->IoAlign > 2) && (((UINTN)Buffer & (Media->IoAlign - 1)) != 0)) {\r |
72 | Status = EFI_INVALID_PARAMETER;\r |
1e57a462 |
73 | } else {\r |
3d783074 |
74 | Status = NorFlashReadBlocks (Instance, Lba, BufferSizeInBytes, Buffer);\r |
1e57a462 |
75 | }\r |
76 | \r |
77 | return Status;\r |
78 | }\r |
79 | \r |
80 | //\r |
81 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks\r |
82 | //\r |
83 | EFI_STATUS\r |
84 | EFIAPI\r |
85 | NorFlashBlockIoWriteBlocks (\r |
86 | IN EFI_BLOCK_IO_PROTOCOL *This,\r |
87 | IN UINT32 MediaId,\r |
88 | IN EFI_LBA Lba,\r |
89 | IN UINTN BufferSizeInBytes,\r |
90 | IN VOID *Buffer\r |
91 | )\r |
92 | {\r |
93 | NOR_FLASH_INSTANCE *Instance;\r |
94 | EFI_STATUS Status;\r |
95 | \r |
96 | Instance = INSTANCE_FROM_BLKIO_THIS(This);\r |
97 | \r |
98 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoWriteBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));\r |
99 | \r |
100 | if( !This->Media->MediaPresent ) {\r |
101 | Status = EFI_NO_MEDIA;\r |
102 | } else if( This->Media->MediaId != MediaId ) {\r |
103 | Status = EFI_MEDIA_CHANGED;\r |
104 | } else if( This->Media->ReadOnly ) {\r |
105 | Status = EFI_WRITE_PROTECTED;\r |
106 | } else {\r |
107 | Status = NorFlashWriteBlocks (Instance,Lba,BufferSizeInBytes,Buffer);\r |
108 | }\r |
109 | \r |
110 | return Status;\r |
111 | }\r |
112 | \r |
113 | //\r |
114 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks\r |
115 | //\r |
116 | EFI_STATUS\r |
117 | EFIAPI\r |
118 | NorFlashBlockIoFlushBlocks (\r |
119 | IN EFI_BLOCK_IO_PROTOCOL *This\r |
120 | )\r |
121 | {\r |
122 | // No Flush required for the NOR Flash driver\r |
123 | // because cache operations are not permitted.\r |
124 | \r |
125 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoFlushBlocks: Function NOT IMPLEMENTED (not required).\n"));\r |
126 | \r |
127 | // Nothing to do so just return without error\r |
128 | return EFI_SUCCESS;\r |
129 | }\r |