BarinkOS/kernel/storage/partitiontables/mbr/MasterBootRecord.h

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#pragma once
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#include <stdint-gcc.h>
#include "PartitionTableEntry.h"
#include "../../../memory/KernelHeap.h"
#include "../../ata pio/ATAPIO.h"
struct MBR {
uint8_t code [440];
uint32_t uniqueID;
uint16_t Reserved;
struct PartitionTableEntry TableEntries[4];
uint16_t ValidBootsector;
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}__attribute__((packed));
inline MBR* GetPartitions(bool DEBUG = false){
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const int C = 0;
const int H = 0;
const int HPC = 16;
const int SPT = 63;
int S =1;
uint32_t LBA = (C*HPC+H) * SPT + (S-1);
uint16_t* mbr =(uint16_t*) malloc(sizeof (MBR));
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ATAPIO::Read(ATAPIO_PORT::Primary, DEVICE_DRIVE::MASTER, LBA, mbr );
auto bootRecord = (MBR*)(mbr);
printf("MBR (In Memory) Address 0x%x, Size = %d\n", bootRecord, sizeof (MBR));
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if(DEBUG){
printf("BootSector: 0x%x\n", bootRecord->ValidBootsector );
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for( int i = 0 ; i < 4 ; i ++){
PartitionTableEntry PT = bootRecord->TableEntries[i];
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printf("Partition %d [ %d sectors, PartitionType: 0x%x, 0x%x, \nLBA Start: 0x%x ]\n" ,
i, PT.Number_sectors_inPartition, PT.PartitionType, bootRecord->uniqueID, PT.LBA_partition_start );
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}
}
return bootRecord;
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}