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a4ce9ffd JJ |
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 | |
ea0d111e LE |
5 | \r |
6 | This program and the accompanying materials are licensed and made available\r | |
7 | under the terms and conditions of the BSD License which accompanies this\r | |
8 | distribution. The full text of the license may be found at\r | |
a4ce9ffd JJ |
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 | #ifndef __QEMU_FLASH_H__\r | |
17 | #define __QEMU_FLASH_H__\r | |
18 | \r | |
19 | #include <Protocol/FirmwareVolumeBlock.h>\r | |
20 | \r | |
1767877a LE |
21 | extern UINT8 *mFlashBase;\r |
22 | \r | |
a4ce9ffd JJ |
23 | /**\r |
24 | Read from QEMU Flash\r | |
25 | \r | |
26 | @param[in] Lba The starting logical block index to read from.\r | |
27 | @param[in] Offset Offset into the block at which to begin reading.\r | |
28 | @param[in] NumBytes On input, indicates the requested read size. On\r | |
29 | output, indicates the actual number of bytes read\r | |
30 | @param[in] Buffer Pointer to the buffer to read into.\r | |
31 | \r | |
32 | **/\r | |
33 | EFI_STATUS\r | |
34 | QemuFlashRead (\r | |
35 | IN EFI_LBA Lba,\r | |
36 | IN UINTN Offset,\r | |
37 | IN UINTN *NumBytes,\r | |
38 | IN UINT8 *Buffer\r | |
39 | );\r | |
40 | \r | |
41 | \r | |
42 | /**\r | |
43 | Write to QEMU Flash\r | |
44 | \r | |
45 | @param[in] Lba The starting logical block index to write to.\r | |
46 | @param[in] Offset Offset into the block at which to begin writing.\r | |
47 | @param[in] NumBytes On input, indicates the requested write size. On\r | |
48 | output, indicates the actual number of bytes written\r | |
49 | @param[in] Buffer Pointer to the data to write.\r | |
50 | \r | |
51 | **/\r | |
52 | EFI_STATUS\r | |
53 | QemuFlashWrite (\r | |
54 | IN EFI_LBA Lba,\r | |
55 | IN UINTN Offset,\r | |
56 | IN UINTN *NumBytes,\r | |
57 | IN UINT8 *Buffer\r | |
58 | );\r | |
59 | \r | |
60 | \r | |
61 | /**\r | |
62 | Erase a QEMU Flash block\r | |
63 | \r | |
64 | @param Lba The logical block index to erase.\r | |
65 | \r | |
66 | **/\r | |
67 | EFI_STATUS\r | |
68 | QemuFlashEraseBlock (\r | |
69 | IN EFI_LBA Lba\r | |
70 | );\r | |
71 | \r | |
72 | \r | |
73 | /**\r | |
74 | Initializes QEMU flash memory support\r | |
75 | \r | |
76 | @retval EFI_WRITE_PROTECTED The QEMU flash device is not present.\r | |
77 | @retval EFI_SUCCESS The QEMU flash device is supported.\r | |
78 | \r | |
79 | **/\r | |
80 | EFI_STATUS\r | |
81 | QemuFlashInitialize (\r | |
82 | VOID\r | |
83 | );\r | |
84 | \r | |
85 | \r | |
86 | VOID\r | |
87 | QemuFlashConvertPointers (\r | |
88 | VOID\r | |
89 | );\r | |
90 | \r | |
91 | #endif\r | |
92 | \r |