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1d5d0ae9 | 1 | /** @file NorFlashBlockIoDxe.c |
2 | ||
68dda854 | 3 | Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR> |
4 | ||
1d5d0ae9 | 5 | This program and the accompanying materials |
6 | are licensed and made available under the terms and conditions of the BSD License | |
7 | which accompanies this distribution. The full text of the license may be found at | |
8 | http://opensource.org/licenses/bsd-license.php | |
9 | ||
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
12 | ||
13 | **/ | |
14 | ||
1d5d0ae9 | 15 | #include <Library/BaseMemoryLib.h> |
16 | #include <Library/UefiBootServicesTableLib.h> | |
17 | ||
18 | #include "NorFlashDxe.h" | |
19 | ||
1d5d0ae9 | 20 | // |
21 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.Reset | |
22 | // | |
23 | EFI_STATUS | |
24 | EFIAPI | |
25 | NorFlashBlockIoReset ( | |
26 | IN EFI_BLOCK_IO_PROTOCOL *This, | |
27 | IN BOOLEAN ExtendedVerification | |
28 | ) | |
29 | { | |
1d5d0ae9 | 30 | NOR_FLASH_INSTANCE *Instance; |
31 | ||
32 | Instance = INSTANCE_FROM_BLKIO_THIS(This); | |
33 | ||
34 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReset(MediaId=0x%x)\n", This->Media->MediaId)); | |
35 | ||
68dda854 | 36 | return NorFlashReset (Instance); |
1d5d0ae9 | 37 | } |
38 | ||
39 | // | |
40 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks | |
41 | // | |
42 | EFI_STATUS | |
43 | EFIAPI | |
44 | NorFlashBlockIoReadBlocks ( | |
45 | IN EFI_BLOCK_IO_PROTOCOL *This, | |
46 | IN UINT32 MediaId, | |
47 | IN EFI_LBA Lba, | |
48 | IN UINTN BufferSizeInBytes, | |
49 | OUT VOID *Buffer | |
50 | ) | |
51 | { | |
d5e12da4 | 52 | NOR_FLASH_INSTANCE *Instance; |
53 | EFI_STATUS Status; | |
1d5d0ae9 | 54 | |
55 | Instance = INSTANCE_FROM_BLKIO_THIS(This); | |
56 | ||
57 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReadBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer)); | |
58 | ||
d5e12da4 | 59 | if( !This->Media->MediaPresent ) { |
60 | Status = EFI_NO_MEDIA; | |
61 | } else if( This->Media->MediaId != MediaId ) { | |
62 | Status = EFI_MEDIA_CHANGED; | |
63 | } else { | |
68dda854 | 64 | Status = NorFlashReadBlocks (Instance,Lba,BufferSizeInBytes,Buffer); |
d5e12da4 | 65 | } |
66 | ||
67 | return Status; | |
1d5d0ae9 | 68 | } |
69 | ||
70 | // | |
71 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks | |
72 | // | |
73 | EFI_STATUS | |
74 | EFIAPI | |
75 | NorFlashBlockIoWriteBlocks ( | |
76 | IN EFI_BLOCK_IO_PROTOCOL *This, | |
77 | IN UINT32 MediaId, | |
78 | IN EFI_LBA Lba, | |
79 | IN UINTN BufferSizeInBytes, | |
80 | IN VOID *Buffer | |
81 | ) | |
82 | { | |
d5e12da4 | 83 | NOR_FLASH_INSTANCE *Instance; |
84 | EFI_STATUS Status; | |
1d5d0ae9 | 85 | |
86 | Instance = INSTANCE_FROM_BLKIO_THIS(This); | |
87 | ||
88 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoWriteBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer)); | |
89 | ||
d5e12da4 | 90 | if( !This->Media->MediaPresent ) { |
91 | Status = EFI_NO_MEDIA; | |
92 | } else if( This->Media->MediaId != MediaId ) { | |
93 | Status = EFI_MEDIA_CHANGED; | |
94 | } else if( This->Media->ReadOnly ) { | |
95 | Status = EFI_WRITE_PROTECTED; | |
96 | } else { | |
68dda854 | 97 | Status = NorFlashWriteBlocks (Instance,Lba,BufferSizeInBytes,Buffer); |
d5e12da4 | 98 | } |
99 | ||
100 | return Status; | |
1d5d0ae9 | 101 | } |
102 | ||
103 | // | |
104 | // BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks | |
105 | // | |
106 | EFI_STATUS | |
107 | EFIAPI | |
108 | NorFlashBlockIoFlushBlocks ( | |
109 | IN EFI_BLOCK_IO_PROTOCOL *This | |
110 | ) | |
111 | { | |
112 | // No Flush required for the NOR Flash driver | |
113 | // because cache operations are not permitted. | |
114 | ||
115 | DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoFlushBlocks: Function NOT IMPLEMENTED (not required).\n")); | |
116 | ||
117 | // Nothing to do so just return without error | |
118 | return EFI_SUCCESS; | |
119 | } |