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1 | /** @file\r |
2 | OVMF support for QEMU system firmware flash device\r | |
3 | \r | |
4 | Copyright (c) 2009 - 2013, 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 __QEMU_FLASH_H__\r | |
16 | #define __QEMU_FLASH_H__\r | |
17 | \r | |
18 | #include <Protocol/FirmwareVolumeBlock.h>\r | |
19 | \r | |
20 | /**\r | |
21 | Read from QEMU Flash\r | |
22 | \r | |
23 | @param[in] Lba The starting logical block index to read from.\r | |
24 | @param[in] Offset Offset into the block at which to begin reading.\r | |
25 | @param[in] NumBytes On input, indicates the requested read size. On\r | |
26 | output, indicates the actual number of bytes read\r | |
27 | @param[in] Buffer Pointer to the buffer to read into.\r | |
28 | \r | |
29 | **/\r | |
30 | EFI_STATUS\r | |
31 | QemuFlashRead (\r | |
32 | IN EFI_LBA Lba,\r | |
33 | IN UINTN Offset,\r | |
34 | IN UINTN *NumBytes,\r | |
35 | IN UINT8 *Buffer\r | |
36 | );\r | |
37 | \r | |
38 | \r | |
39 | /**\r | |
40 | Write to QEMU Flash\r | |
41 | \r | |
42 | @param[in] Lba The starting logical block index to write to.\r | |
43 | @param[in] Offset Offset into the block at which to begin writing.\r | |
44 | @param[in] NumBytes On input, indicates the requested write size. On\r | |
45 | output, indicates the actual number of bytes written\r | |
46 | @param[in] Buffer Pointer to the data to write.\r | |
47 | \r | |
48 | **/\r | |
49 | EFI_STATUS\r | |
50 | QemuFlashWrite (\r | |
51 | IN EFI_LBA Lba,\r | |
52 | IN UINTN Offset,\r | |
53 | IN UINTN *NumBytes,\r | |
54 | IN UINT8 *Buffer\r | |
55 | );\r | |
56 | \r | |
57 | \r | |
58 | /**\r | |
59 | Erase a QEMU Flash block\r | |
60 | \r | |
61 | @param Lba The logical block index to erase.\r | |
62 | \r | |
63 | **/\r | |
64 | EFI_STATUS\r | |
65 | QemuFlashEraseBlock (\r | |
66 | IN EFI_LBA Lba\r | |
67 | );\r | |
68 | \r | |
69 | \r | |
70 | /**\r | |
71 | Initializes QEMU flash memory support\r | |
72 | \r | |
73 | @retval EFI_WRITE_PROTECTED The QEMU flash device is not present.\r | |
74 | @retval EFI_SUCCESS The QEMU flash device is supported.\r | |
75 | \r | |
76 | **/\r | |
77 | EFI_STATUS\r | |
78 | QemuFlashInitialize (\r | |
79 | VOID\r | |
80 | );\r | |
81 | \r | |
82 | \r | |
83 | VOID\r | |
84 | QemuFlashConvertPointers (\r | |
85 | VOID\r | |
86 | );\r | |
87 | \r | |
88 | #endif\r | |
89 | \r |