git-svn-id: https://spexeah.com:8443/svn/Asuro@660 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c
This commit is contained in:
aaron
@ -62,8 +62,6 @@ type
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end;
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PBootRecord = ^TBootRecord;
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byteArray8 = array[0..7] of char;
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TDirectory = packed record
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fileName : array[0..7] of char;
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fileExtension : array[0..2] of char;
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@ -141,13 +139,15 @@ var
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buffer : puint32;
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fatEntriesPerSector : uint32;
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sectorLocation : uint32;
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dataStart : uint32;
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begin
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buffer:= puint32(kalloc(bootRecord^.sectorsize));
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memset(uint32(buffer), 0, bootRecord^.sectorsize);
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fatEntriesPerSector:= bootRecord^.sectorsize div 4;
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sectorLocation:= cluster div fatEntriesPerSector + (volume^.sectorStart + 1 + bootRecord^.rsvSectors);
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sectorLocation:= cluster div fatEntriesPerSector;
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dataStart:= (volume^.sectorStart + 1 + bootRecord^.rsvSectors);
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volume^.device^.readcallback(volume^.device, sectorLocation, 1, buffer);
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volume^.device^.readcallback(volume^.device, datastart + sectorLocation, 1, buffer);
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//console.writehexln(uint32(buffer[1]));
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//console.writeint(cluster);
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@ -157,7 +157,12 @@ begin
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//console.writeint(fatEntriesPerSector);
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//console.writestringln(') ');
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console.redrawWindows();
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readFat:= buffer[cluster - ((cluster - 1) * fatEntriesPerSector)];
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readFat:= buffer[cluster - (sectorLocation * fatEntriesPerSector)];
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//console.writehexlnWND(readFat(volume, 0, bootRecord) ,getTerminalHWND());
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//console.writehexlnWND(readFat(volume, 1, bootRecord) ,getTerminalHWND());
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//console.writehexlnWND(readFat(volume, 2, bootRecord) ,getTerminalHWND());
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//console.writehexlnWND(readFat(volume, 3, bootRecord) ,getTerminalHWND());
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kfree(buffer);
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end;
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@ -167,15 +172,17 @@ var
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buffer : puint32;
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fatEntriesPerSector : uint32;
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sectorLocation : uint32;
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dataStart : uint32;
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begin
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buffer:= puint32(kalloc(bootRecord^.sectorsize));
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memset(uint32(buffer), 0, bootRecord^.sectorsize);
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fatEntriesPerSector:= bootRecord^.sectorsize div 4;
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sectorLocation:= cluster div fatEntriesPerSector + (volume^.sectorStart + 1 + bootRecord^.rsvSectors);
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sectorLocation:= cluster div fatEntriesPerSector;
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dataStart:= (volume^.sectorStart + 1 + bootRecord^.rsvSectors);
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volume^.device^.readcallback(volume^.device, sectorLocation, 1, buffer);
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volume^.device^.readcallback(volume^.device, dataStart + sectorLocation, 1, buffer);
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buffer[cluster - (sectorLocation * fatEntriesPerSector)]:= value;
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volume^.device^.writecallback(volume^.device, sectorLocation, 1, buffer);
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volume^.device^.writecallback(volume^.device, dataStart + sectorLocation, 1, buffer);
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kfree(buffer);
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end;
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@ -314,12 +321,7 @@ begin
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directories:= getDirEntries(volume, bootRecord^.rootCluster, bootRecord);
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if LL_size(directoryStrings) > 0 then begin
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console.writeintln(123123);
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redrawWindows();
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for i:=0 to LL_Size(directoryStrings) - 1 do begin
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ii:=0;
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while true do begin
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@ -340,9 +342,6 @@ begin
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directories:= getDirEntries(volume, cluster, bootRecord);
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end;
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end else begin
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console.writeintln(LL_Size(directories)); //nneds to be fixed currently only 1
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redrawWindows();
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while true do begin
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if ii > LL_Size(directories) - 1 then break;
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dirEntry:= PDirectory(LL_Get(directories, ii));
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@ -356,6 +355,98 @@ begin
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kfree(puint32(bootRecord));
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end;
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procedure writeDirectory(volume : PStorage_volume; directory : pchar; dirName : pchar; attributes : uint32; status : puint32); // need to handle parent table cluster overflow, need to take attributes
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var
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directories : PLinkedListBase;
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parentDirectory : PDirectory;
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parentCluster : uint32;
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clusters : PLinkedListBase;
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cluster : uint32;
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bootRecord : PBootRecord;
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buffer : puint32;
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bufferPointer : PDirectory;
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dataStart : uint32;
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EntriesPerSector : uint32;
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sectorLocation : uint32;
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dataOffset : uint32;
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i : uint32;
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thisArray : byteArray8 = ('.',' ',' ',' ',' ',' ',' ',' ');
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parentArray : byteArray8 = ('.','.',' ',' ',' ',' ',' ',' ');
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begin
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push_trace('fat32.writeDirectory');
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directories:= readDirectory(volume, directory, status); //TODO error check first
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bootRecord:= readBootRecord(volume);
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datastart:= volume^.sectorStart + 1 + bootRecord^.FATSize + bootRecord^.rsvSectors;
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parentDirectory:= PDirectory(LL_Get(directories, 0));
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parentCluster:= uint32(parentDirectory^.clusterlow);
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console.writeintlnWND(parentDirectory^.clusterlow, getTerminalHWND());
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console.writeintlnWND(parentDirectory^.clusterhigh, getTerminalHWND());
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console.writeintlnWND(parentCluster, getTerminalHWND());
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clusters:= findFreeClusters(volume, 1, bootRecord);
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cluster:= uint32(LL_Get(clusters, 0)^);
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if attributes = $10 then begin // if directory
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buffer:= puint32(kalloc(bootRecord^.sectorSize));
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memset(uint32(buffer), 0, bootRecord^.sectorSize);
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bufferPointer:= @PDirectory(buffer)[0];
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bufferPointer^.fileName:= thisArray; //TODO implement time
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bufferPointer^.attributes:= attributes;
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bufferPointer^.clusterLow:= cluster;
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bufferPointer^.clusterHigh:= (cluster shr 16) and $0000FFFF;
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bufferPointer:= @PDirectory(buffer)[1];
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bufferPointer^.fileName:= parentArray; //TODO implement time
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bufferPointer^.attributes:= attributes;
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bufferPointer^.clusterLow:= parentCluster;
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bufferPointer^.clusterHigh:= (parentCluster shr 16) and $0000FFFF;
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//write to disk
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volume^.device^.writecallback(volume^.device, dataStart + (cluster * bootRecord^.spc), 1, buffer);
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//write fat
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writeFat(volume, cluster, $FFFFFFF8, bootRecord); //TODO check if working
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end;
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memset(uint32(buffer), 0, bootRecord^.sectorSize);
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//calculate write cluster using directories and parentCluster
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sectorLocation:= LL_size(directories) * sizeof(PDirectory) div bootRecord^.sectorSize;
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sectorLocation:= sectorLocation + (parentCluster * bootRecord^.spc);
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//dataOffset:= datastart + ( (LL_size(directories) * sizeof(PDirectory)) - (sizeUsed * bootRecord^.sectorSize));
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volume^.device^.readcallback(volume^.device, dataStart + sectorLocation, 1, buffer);
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//construct my dir entry
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bufferPointer:= @PDirectory(buffer)[LL_size(directories)];
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bufferPointer^.fileName:= pbytearray8(dirName)^;
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bufferPointer^.attributes:= attributes;
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bufferPointer^.clusterLow:= cluster;
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bufferPointer^.clusterHigh:= (cluster shr 16) and $0000FFFF;
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console.writestringlnWND(dirName, getTerminalHWND());
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printmemory(uint32(buffer),256,32,' ',true);
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console.writeintlnWND(dataStart, getTerminalHWND()); //parent cluster is 0 what the fuck
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console.writeintlnWND(uint32(LL_size(directories)), getTerminalHWND());
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for i:=0 to 4 do begin
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console.writestringlnWND( PChar( PDirectory(LL_Get(directories, i))^.fileName) , getTerminalHWND());
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end;
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redrawWindows();
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//write to disk
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volume^.device^.writecallback(volume^.device, dataStart + sectorLocation, 1, buffer);
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kfree(buffer);
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kfree(puint32(bootRecord));
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LL_Free(directories);
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end;
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procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
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var
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@ -371,6 +462,10 @@ var
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fatArray : byteArray8 = ('F','A','T','3','2',' ',' ',' ');
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thisArray : byteArray8 = ('.',' ',' ',' ',' ',' ',' ',' ');
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parentArray : byteArray8 = ('.','.',' ',' ',' ',' ',' ',' ');
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asuroFileArray : byteArray8 = ('A','S','U','R','O',' ',' ',' ');
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mountFileArray : byteArray8 = ('M','O','U','N','T',' ',' ',' ');
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programFileArray : byteArray8 = ('P','R','O','G','R','A','M','S');
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rootCluster : uint32 = 1;
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begin
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push_trace('fat32.create_volume()');
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@ -444,10 +539,18 @@ begin
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PDirectory(buffer)[1].clusterLow := 1;
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//Temp for testing other functions
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PDirectory(buffer)[2].fileName := fatArray;
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PDirectory(buffer)[2].fileName := asuroFileArray;
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PDirectory(buffer)[2].attributes := $10;
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PDirectory(buffer)[2].clusterLow := 1;
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//
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PDirectory(buffer)[3].fileName := mountFileArray;
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PDirectory(buffer)[3].attributes := $10;
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PDirectory(buffer)[3].clusterLow := 1;
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PDirectory(buffer)[4].fileName := programFileArray;
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PDirectory(buffer)[4].attributes := $10;
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PDirectory(buffer)[4].clusterLow := 1;
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disk^.writecallback(disk, dataStart + (config^ * rootCluster), 1, buffer);
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@ -492,8 +595,10 @@ begin
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push_trace('fat32.init()');
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filesystem.sName:= 'FAT32';
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filesystem.readDirCallback:= @readDirectory;
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filesystem.createDirCallback:= @writeDirectory;
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filesystem.createcallback:= @create_volume;
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filesystem.detectcallback:= @detect_volumes;
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storagemanagement.register_filesystem(@filesystem);
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end;
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