rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2018 MediaTek Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files |
| 6 | * (the "Software"), to deal in the Software without restriction, |
| 7 | * including without limitation the rights to use, copy, modify, merge, |
| 8 | * publish, distribute, sublicense, and/or sell copies of the Software, |
| 9 | * and to permit persons to whom the Software is furnished to do so, |
| 10 | * subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be |
| 13 | * included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #if !defined(__KDUMP_SDHC_H__) |
| 25 | #define __KDUMP_SDHC_H__ |
| 26 | |
| 27 | #include <lib/bio.h> |
| 28 | #include <stdbool.h> |
| 29 | |
| 30 | #define MaxFindFileClusNum 100 |
| 31 | |
| 32 | typedef enum { |
| 33 | WRITE_FILE_DIRECT = 0, |
| 34 | FORMAT_BEF_WRITE = 1 |
| 35 | } FileWriteType; |
| 36 | |
| 37 | |
| 38 | typedef enum FileSysType { |
| 39 | FAT_16 = 0, |
| 40 | FAT_32 = 1 |
| 41 | } FATType; |
| 42 | |
| 43 | typedef struct { |
| 44 | uint32_t BPB_BytsPerSec; |
| 45 | uint32_t BPB_SecPerClus; |
| 46 | uint32_t BPB_RsvdSecCnt; |
| 47 | uint32_t BPB_NumFATs; |
| 48 | uint32_t BPB_FATSz; |
| 49 | uint32_t BPB_RootEntCnt; |
| 50 | uint32_t BPB_RootClus; |
| 51 | uint32_t BPB_TotSec; |
| 52 | FATType FileSysType; |
| 53 | uint32_t BootStartSec; |
| 54 | uint32_t FATStartSec; |
| 55 | uint32_t RootDirStartSec; |
| 56 | uint32_t ClusStartSec; |
| 57 | } FAT_Para; |
| 58 | |
| 59 | |
| 60 | |
| 61 | typedef struct { |
| 62 | uint8_t name[11]; // file name |
| 63 | uint8_t attr; // file attribute bits (system, hidden, etc.) |
| 64 | uint8_t NTflags; // ??? |
| 65 | uint8_t createdTimeMsec; // ??? (milliseconds needs 11 bits for 0-2000) |
| 66 | uint16_t createdTime; // time of file creation |
| 67 | uint16_t createdDate; // date of file creation |
| 68 | uint16_t lastAccessDate; // date of last file access |
| 69 | uint16_t clusFirstHigh; // high word of first cluster |
| 70 | uint16_t time; // time of last file change |
| 71 | uint16_t date; // date of last file change |
| 72 | uint16_t clusFirst; // low word of first cluster |
| 73 | uint32_t size; // file size in bytes |
| 74 | } DirEntry; |
| 75 | |
| 76 | typedef struct { |
| 77 | uint8_t seqNum; // sequence number |
| 78 | uint8_t name1[10]; // name characters (five UTF-16 characters) |
| 79 | uint8_t attr; // attributes (always 0x0F) |
| 80 | uint8_t NTflags; // reserved (alwyas 0x00) |
| 81 | uint8_t checksum; // checksum of DOS file name |
| 82 | uint8_t name2[12]; // name characters (six UTF-16 characters) |
| 83 | uint16_t clusFirst; // word of first cluster (always 0x0000) |
| 84 | uint8_t name3[4]; // name characters (2 UTF-16 characters) |
| 85 | } LfnEntry; |
| 86 | |
| 87 | #define FAT_BUFSIZE 65536 |
| 88 | |
| 89 | typedef struct { |
| 90 | uint8_t FileBuffer[FAT_BUFSIZE]; // File cluster cache, assume maximum cluster size is 64KB |
| 91 | uint8_t FATBuffer[512]; // FAT cache |
| 92 | uint32_t BufferLen; // data cached length in FileBuffer |
| 93 | uint32_t TotalLen; // File total length |
| 94 | uint32_t PrevClusterNum; // Prev cluster number |
| 95 | uint32_t CurrClusterNum; // Current cluster number |
| 96 | uint32_t FATSector; // Current FAT sector number |
| 97 | uint32_t CheckSum; // File write content checksum |
| 98 | bool DiskFull; |
| 99 | } FileHandler; |
| 100 | |
| 101 | |
| 102 | struct mrdump_dev { |
| 103 | const char *name; |
| 104 | void *handle; |
| 105 | bdev_t *bdev; |
| 106 | |
| 107 | bool (*read)(struct mrdump_dev *dev, uint64_t sector_addr, uint8_t *pdBuf, int32_t blockLen); |
| 108 | bool (*write)(struct mrdump_dev *dev, uint64_t sector_addr, uint8_t *pdBuf, int32_t blockLen); |
| 109 | }; |
| 110 | |
| 111 | static inline int mrdump_dev_read(struct mrdump_dev *dev, uint32_t sector_addr, uint8_t *pdBuf, int32_t blockLen) |
| 112 | { |
| 113 | return dev->read(dev, sector_addr, pdBuf, blockLen); |
| 114 | } |
| 115 | |
| 116 | static inline int mrdump_dev_write(struct mrdump_dev *dev, uint32_t sector_addr, uint8_t *pdBuf, int32_t blockLen) |
| 117 | { |
| 118 | return dev->write(dev, sector_addr, pdBuf, blockLen); |
| 119 | } |
| 120 | |
| 121 | #endif |