projects / mirror_edk2.git / blame
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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 | |
| 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 |