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git-svn-id: https://spexeah.com:8443/svn/Asuro@502 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c

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This commit is contained in:
aaron
2018-04-11 22:14:08 +00:00
parent 5b8cdaf43e
commit f1beeca4c4
4 changed files with 34 additions and 14 deletions
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23
src/driver/storage/fat32.pas
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@ -13,7 +13,7 @@ unit FAT32;
interface
uses
console, storagemanagement;
console, storagemanagement, util, lmemorymanager;
type
@ -49,7 +49,6 @@ type
end;
byteArray8 = array[0..7] of char;
byteArray12 = array[0..11] of uint8;
TDirectory = bitpacked record
fileName : uint64;
@ -66,6 +65,7 @@ type
clusterLow : uint16;
byteSize : uint32;
end;
PDirectory = ^TDirectory;
TFilesystemInfo = record
FATBaseAddress : uint32;
@ -143,7 +143,7 @@ begin
bootrecord.sectorsize:= disk^.sectorSize;
bootrecord.spc:= PFatVolumeInfo(config)^.sectorsPerCluster;
bootrecord.rsvSectors:= 32; //Is this acceptable?
bootrecord.numFats:= 2;
bootrecord.numFats:= 1;
bootrecord.numDirEnt:= 0;
bootRecord.numSectors:= 0;
bootrecord.mediaDescp:= $F8;
@ -154,7 +154,7 @@ begin
bootRecord.manySectors:= sectors;
BootRecord.FATSize:= ((sectors DIV PFatVolumeInfo(config)^.sectorsPerCluster) * 16 DIV disk^.sectorSize);
BootRecord.flags:= 1 shl 7;
BootRecord.flags:= 0; //1 shl 7 for mirroring
BootRecord.FATVersion:= 0;
BootRecord.rootCluster:= 2; // can be changed if needed.
BootRecord.FSInfoCluster:=1; //TODO need FSINFO
@ -166,12 +166,21 @@ begin
BootRecord.bsignature:= $29;
BootRecord.identString:= fatArray;
puint32(buffer + (127))^:= $55AA; //end marker
buffer:= @bootrecord;
disk^.writeCallback(disk, 1, sizeof(TBootRecord), buffer);
disk^.writeCallback(disk, start + 1, 1, buffer);
//TODO FSINFO struct
//write fat
buffer := puint32(kalloc((sectors DIV bootrecord.spc) * 4));
memset(uint32(buffer), 0, sectors DIV bootrecord.spc);
puint32(buffer + 1)^:= $FFF8; //root directory table cluster, currently root is only 1 cluster long
disk^.writeCallback(disk, start + 2, sectors DIV bootrecord.spc, buffer);
//disk^.writeCallback(disk, start + 2 + (sectors Div bootrecord.sectorsPerCluster DIV 512), sectors DIV bootrecord.sectorsPerCluster, buffer);
//448bytes bootstrap
//2bytes end mark 55AA
end;