219 lines
8.4 KiB
C
219 lines
8.4 KiB
C
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/*
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* Copyright (c) 2024, sakumisu
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* Copyright (c) 2024, Egahp
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef BOOTUF2_H
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#define BOOTUF2_H
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#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <bootuf2_config.h>
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#ifndef __PACKED
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#define __PACKED __attribute__((packed))
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#endif
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(array) \
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((int)((sizeof(array) / sizeof((array)[0]))))
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#endif
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struct bootuf2_BLOCK
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{
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// 32 byte header
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uint32_t MagicStart0;
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uint32_t MagicStart1;
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uint32_t Flags;
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uint32_t TargetAddress;
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uint32_t PayloadSize;
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uint32_t BlockIndex;
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uint32_t NumberOfBlock;
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uint32_t FamilyID; // or file_size
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uint8_t Data[476];
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uint32_t MagicEnd;
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} __PACKED;
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//BUILD_ASSERT(sizeof(struct bootuf2_BLOCK) == 512, "bootuf2_BLOCK not sector sized");
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struct bootuf2_STATE
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{
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uint32_t NumberOfBlock;
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uint32_t NumberOfWritten;
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uint8_t *const Mask;
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uint8_t Enable;
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};
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struct bootuf2_DBR
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{
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/*!< offset 0 */
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uint8_t JMPInstruction[3];
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/*!< offset 3 */
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uint8_t OEM[8];
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/*!< offset 11 */
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struct
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{
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uint16_t BytesPerSector;
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uint8_t SectorsPerCluster;
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uint16_t ReservedSectors;
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uint8_t NumberOfFAT;
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uint16_t RootEntries;
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uint16_t Sectors;
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uint8_t MediaDescriptor;
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uint16_t SectorsPerFAT;
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uint16_t SectorsPerTrack;
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uint16_t Heads;
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uint32_t HiddenSectors;
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uint32_t SectorsOver32MB;
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uint8_t BIOSDrive;
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uint8_t Reserved;
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uint8_t ExtendBootSignature;
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uint32_t VolumeSerialNumber;
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uint8_t VolumeLabel[11];
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uint8_t FileSystem[8];
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} __PACKED BPB;
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/*!< offset 62 */
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/*!< BootLoader */
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/*!< offset 511 */
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/*!< 0x55 0xAA */
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} __PACKED;
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//BUILD_ASSERT(sizeof(struct bootuf2_DBR) == 62, "bootuf2_DBR size must be 62 byte");
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struct bootuf2_ENTRY
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{
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char Name[11];
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uint8_t Attribute;
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uint8_t NTReserved;
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uint8_t CreateTimeTeenth;
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uint16_t CreateTime;
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uint16_t CreateDate;
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uint16_t LastAccessDate;
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uint16_t FirstClustH16;
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uint16_t UpdateTime;
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uint16_t UpdateDate;
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uint16_t FirstClustL16;
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uint32_t FileSize;
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} __PACKED;
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//BUILD_ASSERT(sizeof(struct bootuf2_ENTRY) == 32, "bootuf2_ENTRY size must be 32 byte");
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struct bootuf2_FILE
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{
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const char *const Name;
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const void *const Content;
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uint32_t FileSize;
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uint16_t ClusterBeg;
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uint16_t ClusterEnd;
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};
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#define BOOTUF2_DIVCEIL(_v, _d) (((_v) / (_d)) + ((_v) % (_d) ? 1 : 0))
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#define BOOTUF2_MAGIC_START0 0x0A324655u
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#define BOOTUF2_MAGIC_START1 0x9E5D5157u
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#define BOOTUF2_MAGIC_SERIAL 0x251B18BDu
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#define BOOTUF2_MAGIC_END 0x0AB16F30u
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#define BOOTUF2_FLAG_NOT_MAIN_FLASH 0x00000001u
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#define BOOTUF2_FLAG_FILE_CONTAINER 0x00001000u
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#define BOOTUF2_FLAG_FAMILID_PRESENT 0x00002000u
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#define BOOTUF2_FLAG_MD5_PRESENT 0x00004000u
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#define BOOTUF2_CMD_READ 0
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#define BOOTUF2_CMD_SYNC 1
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#define BOOTUF2_BLOCKSMAX (((CONFIG_BOOTUF2_FLASHMAX) / 256) + (((CONFIG_BOOTUF2_FLASHMAX) % 256) ? 1 : 0))
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#define BOOTUF2_FAMILYID_POSNUM(n) (((CONFIG_BOOTUF2_FAMILYID) / (0x10000000 >> ((n) * 4))) % 0x10)
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#define BOOTUF2_FAMILYID_ARRAY \
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{ \
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((BOOTUF2_FAMILYID_POSNUM(0) >= 10) ? BOOTUF2_FAMILYID_POSNUM(0) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(0) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(1) >= 10) ? BOOTUF2_FAMILYID_POSNUM(1) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(1) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(2) >= 10) ? BOOTUF2_FAMILYID_POSNUM(2) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(2) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(3) >= 10) ? BOOTUF2_FAMILYID_POSNUM(3) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(3) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(4) >= 10) ? BOOTUF2_FAMILYID_POSNUM(4) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(4) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(5) >= 10) ? BOOTUF2_FAMILYID_POSNUM(5) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(5) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(6) >= 10) ? BOOTUF2_FAMILYID_POSNUM(6) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(6) + '0'), \
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((BOOTUF2_FAMILYID_POSNUM(7) >= 10) ? BOOTUF2_FAMILYID_POSNUM(7) - 10 + 'A' : BOOTUF2_FAMILYID_POSNUM(7) + '0'), \
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('I'), \
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('D'), \
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(' '), \
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('\0'), \
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};
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#define BOOTUF2_FAT16_PER_SECTOR(pDBR) (pDBR->BPB.BytesPerSector / 2)
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#define BOOTUF2_ENTRY_PER_SECTOR(pDBR) (pDBR->BPB.BytesPerSector / sizeof(struct bootuf2_ENTRY))
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#define BOOTUF2_CLUSTERSMAX (0xFFF0 - 2)
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#define BOOTUF2_SECTOR_DBR_END (0)
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#define BOOTUF2_SECTOR_RSVD_END(pDBR) BOOTUF2_SECTOR_DBR_END + (pDBR->BPB.ReservedSectors)
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#define BOOTUF2_SECTOR_FAT_END(pDBR) BOOTUF2_SECTOR_RSVD_END(pDBR) + (pDBR->BPB.SectorsPerFAT * pDBR->BPB.NumberOfFAT)
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#define BOOTUF2_SECTOR_ROOT_END(pDBR) BOOTUF2_SECTOR_FAT_END(pDBR) + (pDBR->BPB.RootEntries / (pDBR->BPB.BytesPerSector / sizeof(struct bootuf2_ENTRY)))
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#define BOOTUF2_SECTOR_DATA_END(pDBR) (pDBR->BPB.Sectors + pDBR->BPB.SectorsOver32MB)
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#define BOOTUF2_SECTORS_PER_FAT(n) \
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BOOTUF2_DIVCEIL(BOOTUF2_CLUSTERSMAX, (CONFIG_BOOTUF2_SECTOR_SIZE / 2))
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#define BOOTUF2_SECTORS_FOR_ENTRIES(n) \
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(CONFIG_BOOTUF2_ROOT_ENTRIES / (CONFIG_BOOTUF2_SECTOR_SIZE / sizeof(struct bootuf2_ENTRY)))
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#define BOOTUF2_SECTORS(n) \
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(CONFIG_BOOTUF2_SECTOR_RESERVED + \
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CONFIG_BOOTUF2_NUM_OF_FAT * BOOTUF2_SECTORS_PER_FAT(n) + \
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BOOTUF2_SECTORS_FOR_ENTRIES(n) + \
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BOOTUF2_CLUSTERSMAX * CONFIG_BOOTUF2_SECTOR_PER_CLUSTER)
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#define BOOTUF2_YEAR_INT ( \
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(__DATE__[7u] - '0') * 1000u + \
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(__DATE__[8u] - '0') * 100u + \
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(__DATE__[9u] - '0') * 10u + \
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(__DATE__[10u] - '0') * 1u)
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#define BOOTUF2_MONTH_INT ( \
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(__DATE__[2u] == 'n' && __DATE__[1u] == 'a') ? 1u /*Jan*/ \
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: (__DATE__[2u] == 'b') ? 2u /*Feb*/ \
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: (__DATE__[2u] == 'r' && __DATE__[1u] == 'a') ? 3u /*Mar*/ \
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: (__DATE__[2u] == 'r') ? 4u /*Apr*/ \
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: (__DATE__[2u] == 'y') ? 5u /*May*/ \
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: (__DATE__[2u] == 'n') ? 6u /*Jun*/ \
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: (__DATE__[2u] == 'l') ? 7u /*Jul*/ \
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: (__DATE__[2u] == 'g') ? 8u /*Aug*/ \
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: (__DATE__[2u] == 'p') ? 9u /*Sep*/ \
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: (__DATE__[2u] == 't') ? 10u /*Oct*/ \
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: (__DATE__[2u] == 'v') ? 11u /*Nov*/ \
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: 12u /*Dec*/)
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#define BOOTUF2_DAY_INT ( \
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(__DATE__[4u] == ' ' ? 0 : __DATE__[4u] - '0') * 10u + \
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(__DATE__[5u] - '0'))
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#define BOOTUF2_HOUR_INT ( \
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(__TIME__[0u] == '?' ? 0 : __TIME__[0u] - '0') * 10u + (__TIME__[1u] == '?' ? 0 : __TIME__[1u] - '0'))
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#define BOOTUF2_MINUTE_INT ( \
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(__TIME__[3u] == '?' ? 0 : __TIME__[3u] - '0') * 10u + (__TIME__[4u] == '?' ? 0 : __TIME__[4u] - '0'))
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#define BOOTUF2_SECONDS_INT ( \
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(__TIME__[6u] == '?' ? 0 : __TIME__[6u] - '0') * 10u + (__TIME__[7u] == '?' ? 0 : __TIME__[7u] - '0'))
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#define BOOTUF2_DOS_DATE ( \
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((BOOTUF2_YEAR_INT - 1980u) << 9u) | \
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(BOOTUF2_MONTH_INT << 5u) | \
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(BOOTUF2_DAY_INT << 0u))
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#define BOOTUF2_DOS_TIME ( \
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(BOOTUF2_HOUR_INT << 11u) | \
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(BOOTUF2_MINUTE_INT << 5u) | \
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(BOOTUF2_SECONDS_INT << 0u))
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void bootuf2_init(void);
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int boot2uf2_read_sector(uint32_t start_sector, uint8_t *buff, uint32_t sector_count);
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int bootuf2_write_sector(uint32_t start_sector, const uint8_t *buff, uint32_t sector_count);
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uint16_t bootuf2_get_sector_size(void);
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uint32_t bootuf2_get_sector_count(void);
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bool bootuf2_is_write_done(void);
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void boot2uf2_flash_init(void);
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int bootuf2_flash_write(uint32_t address, const uint8_t *data, size_t size);
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#endif /* BOOTUF2_H */
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