git-svn-id: https://spexeah.com:8443/svn/Asuro@973 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c
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@ -1,578 +0,0 @@
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{ ************************************************
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* Asuro
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* Unit: Drivers/AHCI
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* Description: AHCI SATA Driver
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************************************************
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* Author: Aaron Hance
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* Contributors:
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************************************************ }
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unit AHCI_OLD;
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interface
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uses
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util,
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PCI,
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drivertypes,
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drivermanagement,
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lmemorymanager,
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console,
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vmemorymanager,
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terminal;
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type
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//Struct hell
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TFIS_Type = (
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REG_H2D = $27,
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REG_D2H = $34,
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DMA_ACT = $39,
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DMA_SETUP = $41,
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DATA = $46,
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BIST = $58,
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PIO_SETUP = $5F,
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DEV_BITS = $A0
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);
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PFIS_REG_H2D = ^TFIS_REG_H2D;
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TFIS_REG_H2D = bitpacked record
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fis_type : uint8;
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port_mult : UBit4;
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rsv0 : UBit3;
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coc : boolean;
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command : uint8;
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feature_low : uint8;
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lba0 : uint8;
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lba1 : uint8;
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lba2 : uint8;
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device : uint8;
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lba3 : uint8;
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lba4 : uint8;
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lba5 : uint8;
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feature_high : uint8;
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count_low : uint8;
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count_high : uint8;
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icc : uint8;
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control : uint8;
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rsvl : uint32;
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end;
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TFIS_REG_D2H = bitpacked record
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fis_type : uint8;
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port_mult : UBit4;
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rsv0 : UBit2;
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i : boolean;
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rsvl : boolean;
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status : uint8;
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error : uint8;
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lba0 : uint8;
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lba1 : uint8;
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lba2 : uint8;
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device : uint8;
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lba3 : uint8;
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lba4 : uint8;
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lba5 : uint8;
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rsv2 : uint8;
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count_low : uint8;
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count_high : uint8;
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rsv3 : uint16;
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rsv4 : uint32;
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end;
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TFIS_Data = bitpacked record
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fis_type : uint8;
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port_mult : UBit4;
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rsv0 : UBit4;
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rsv1 : uint16;
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data : ^uint32;
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end;
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TFIS_PIO_Setup = bitpacked record
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fis_type : uint8;
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pmport : UBit4;
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rsv0 : boolean;
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d : boolean;
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i : boolean;
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rsv1 : boolean;
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status : uint8;
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error : uint8;
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lba0 : uint8;
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lba1 : uint8;
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lba2 : uint8;
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device : uint8;
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lba3 : uint8;
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lba4 : uint8;
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lba5 : uint8;
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rsv2 : uint8;
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countl : uint8;
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counth : uint8;
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rsv3 : uint8;
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e_status : uint8;
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tc : uint16;
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rsv4 : uint16;
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end;
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// TFIS_DMA_Setup = bitpacked record
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// end;
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// THBA_Memory = bitpacked record
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// end;
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// THBA_Port = bitpacked record
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// end;
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// THBA_FIS = bitpacked record
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// end;
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PHBA_PORT = ^THBA_PORT;
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THBA_PORT = bitpacked record
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clb : uint32;
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clbu : uint32;
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fb : uint32;
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fbu : uint32;
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istat : uint32;
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ie : uint32;
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cmd : uint32;
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rsv0 : uint32;
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tfd : uint32;
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sig : uint32;
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ssts : uint32;
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sctl : uint32;
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serr : uint32;
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sact : uint32;
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ci : uint32;
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sntf : uint32;
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fbs : uint32;
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rsv1 : array[0..11] of uint32;
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vendor : array[0..4] of uint32;
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end;
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THBA_MEM = bitpacked record
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cap : uint32; //0
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global_host_control : uint32; //4
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interrupt_status : uint32; //8
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port_implemented : uint32; //c
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version : uint32; //10
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ccc_control : uint32; //14
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ccc_ports : uint32; //18
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em_location : uint32; //1c
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em_Control : uint32; //20
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hcap2 : uint32; //24
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bohc : uint32; //28
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rsv0 : array[0..210] of boolean;
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ports : array[0..31] of THBA_Port;
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end;
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THBAptr = ^THBA_MEM;
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PCMDHeader = ^ TCommand_Header;
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TCommand_Header = bitpacked record
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cfl : ubit5;
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a : boolean;
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w : boolean;
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p : boolean;
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r : boolean;
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b : boolean;
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c : boolean;
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rsv0 : boolean;
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pmp : ubit4;
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PRDTL : uint16;
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PRDTBC : uint32;
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CTBA : uint32;
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CTBAU : uint32;
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rsv1 : array[0..3] of uint32;
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end;
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TPRD_Entry = bitpacked record
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data_base_address : uint32;
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data_bade_address_U : uint32;
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rsv0 : uint32;
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data_byte_count : ubit22;
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rsv1 : ubit9;
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interrupt_oc : boolean;
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end;
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PCommand_Table = ^TCommand_Table;
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TCommand_Table = bitpacked record
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cfis : TFIS_REG_H2D;
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acmd : array[0..15] of uint8;
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rsv : array[0..47] of uint8;
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prdt : array[0..7] of TPRD_Entry;
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end;
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var
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//constants
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//SATA_SIG_ATA := $101;
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//SATA_SIG_ATAPI := $EB140101;
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//STA_SIG_SEMB := $C33C0101;
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//STAT_SIG_PM := $96690101;
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AHCI_BASE: uint32 = $400000;
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//other
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ahciController : PuInt32;
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hba : THBAptr;
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sataStorageDevices : array[0..31] of PuInt32;
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sataStorageDeviceCount : uint8;
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procedure init();
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procedure check_ports();
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procedure enable_cmd(port : uint8);
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procedure disable_cmd(port : uint8);
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procedure port_rebase(port : uint8);
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function load(ptr:void): boolean;
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function read(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
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function write(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
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function find_cmd_slot(port : uint8) : uint32;
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procedure test(value : uint32);
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implementation
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procedure test_command(params : PParamList);
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begin
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test(65534);
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end;
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procedure init();
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var
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devID : TDeviceIdentifier;
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begin
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console.writestringln('AHCI: STARTING INIT');
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devID.bus:= biPCI;
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devID.id0:= idANY;
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devID.id1:= $00000001;
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devID.id2:= $00000006;
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devID.id3:= $00000001;
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devID.id4:= idANY;
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devID.ex:= nil;
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drivermanagement.register_driver('AHCI Controller', @devID, @load);
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terminal.registerCommand('AHCI', @test_command, 'TEST ACHI');
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end;
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function load(ptr : void) : boolean;
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begin
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ahciController := ptr + KERNEL_VIRTUAL_BASE;
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hba := THBAptr(PPCI_Device(ahciController)^.address5);
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new_page_at_address(uint32(hba));
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new_page_at_address(AHCI_BASE);
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AHCI_BASE := PPCI_Device(ahciController)^.address5;
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check_ports();
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load:= true;
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exit;
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end;
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procedure check_ports();
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var
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d : uint32;
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i : uint32;
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activePorts : array[0..32] of uint32;
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begin
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d:= 1;
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for i:= 0 to 31 do begin
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if (d > 0) and (hba^.port_implemented <> 0) then begin // port connected
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if hba^.ports[i].ssts = 259 then begin // port in use and active
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if hba^.ports[i].sig = 1 then begin //device is sata
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sataStorageDevices[sataStorageDeviceCount - 1] := @hba^.ports[i];
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sataStorageDeviceCount += 1;
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port_rebase(i);
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end;
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//TODO implement other types
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end;
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end;
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d := d shl 1;
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end;
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end;
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procedure enable_cmd(port : uint8);
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begin
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while (hba^.ports[port].cmd and $8000) <> 0 do begin end;
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hba^.ports[port].cmd := hba^.ports[port].cmd or $0010;
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hba^.ports[port].cmd := hba^.ports[port].cmd or $0001;
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end;
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procedure disable_cmd(port : uint8);
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begin
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hba^.ports[port].cmd := hba^.ports[port].cmd and $0001;
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while (hba^.ports[port].cmd and $4000) <> 0 do begin end;
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hba^.ports[port].cmd := hba^.ports[port].cmd and $0010;
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end;
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procedure port_rebase(port : uint8);
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var
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cmdHeader : PCMDHeader;
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i : uint16;
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begin
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disable_cmd(port);
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hba^.ports[port].clb := AHCI_BASE + (port shl 10);
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hba^.ports[port].clbu := 0;
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memset(hba^.ports[port].clb, 0, 1024);
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hba^.ports[port].fb := AHCI_BASE + (32 shl 10) + (port shl 8);
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hba^.ports[port].fbu := 0;
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memset(hba^.ports[port].fb, 0, 256);
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cmdheader := PCMDHeader(hba^.ports[port].clb + KERNEL_VIRTUAL_BASE);
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for i:= 0 to 31 do begin
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cmdHeader[i].PRDTL := 8; // no of prdt entries per cmd table
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cmdheader[i].ctba := AHCI_BASE + (40 shl 10) + (port shl 13) + (i shl 8);
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cmdheader[i].CTBAU := 0;
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memset(cmdheader[i].ctba, 0, 256);
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end;
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enable_cmd(port);
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end;
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function read(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
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var
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pport : PHBA_PORT;
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slot : uint32;
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cmdHeader : PCMDHeader;
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cmdTable : PCommand_Table;
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cmdFis : PFIS_REG_H2D;
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i : uint32;
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spin : uint32 = 0;
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begin
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console.writestringln('1');
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pport := PHBA_PORT(@hba^.ports[port] + KERNEL_VIRTUAL_BASE);
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//new_page_at_address(uint32(pport));
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pport^.istat := $ffff;
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slot := find_cmd_slot(port);
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if slot = -1 then exit(false);
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console.writestringln('2');
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cmdHeader := PCMDHeader(@pport^.clb + KERNEL_VIRTUAL_BASE);
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//new_page_at_address(uint32(cmdHeader));
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cmdHeader += slot;
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cmdHeader^.w := false;
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cmdHeader^.PRDTL := uint16(((count - 1) shr 4) + 1);
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console.writestringln('3');
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cmdTable := PCommand_Table(@cmdheader^.ctba + KERNEL_VIRTUAL_BASE);
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//new_page_at_address(uint32(cmdTable));
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memset(uint32(cmdTable), 0, sizeof(TCommand_Table) + (cmdheader^.PRDTL-1) * sizeof(TPRD_Entry));
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console.writestringln('4');
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if cmdHeader^.PRDTL > 0 then begin
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for i:= 0 to cmdHeader^.PRDTL -1 do begin
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cmdTable^.prdt[i].data_base_address := uint32(buf);
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cmdTable^.prdt[i].data_byte_count := 8*1024-1;
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cmdTable^.prdt[i].interrupt_oc := false;
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buf += 4*1024;
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count -= 16;
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end;
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end;
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console.writestringln('5');
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cmdTable^.prdt[cmdHeader^.PRDTL].data_base_address := uint32(buf);
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cmdTable^.prdt[cmdHeader^.PRDTL].data_byte_count := (count shl 9)-1;
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cmdTable^.prdt[cmdHeader^.PRDTL].interrupt_oc := false;
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console.writestringln('6');
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//setup command
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cmdfis := PFIS_REG_H2D(@cmdTable^.cfis + KERNEL_VIRTUAL_BASE);
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new_page_at_address(uint32(cmdfis));
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cmdfis^.coc := true;
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cmdfis^.command := $25;
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cmdfis^.lba0 := uint8(startl);
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cmdfis^.lba1 := uint8(startl shr 8);
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cmdfis^.lba2 := uint8(startl shr 16);
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cmdfis^.device := 1 shl 6;
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cmdfis^.lba3 := uint8(startl shr 24);
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cmdfis^.lba4 := uint8(starth);
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cmdfis^.lba3 := uint8(starth shr 8);
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cmdfis^.count_low := count and $FF;
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cmdfis^.count_high:= (count shr 8) and $FF;
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console.writestringln('7');
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// while (pport^.tfd and $88) and spin < 1000000 do begin
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// spin += 1;
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// end;
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console.writestringln('8');
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if spin = 1000000 then begin
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console.writestringln('AHCI controller: port is hung!');
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read:= false;
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exit;
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end;
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console.writestringln('9');
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pport^.ci := 1 shl slot;
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//pport^.ci := 1;
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console.writestringln('10');
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while true do begin
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if(pport^.ci and (1 shl slot)) = (1 shl slot) then break;
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if(pport^.istat and (1 shl 30)) = (1 shl 30) then begin
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console.writestringln('AHCI controller: Disk read error!');
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read:= false;
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exit;
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end;
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end;
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console.writestringln('11');
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if(pport^.istat and (1 shl 30)) = (1 shl 30) then begin
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console.writestringln('AHCI controller: Disk read error!');
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read:= false;
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exit;
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end;
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console.writestringln('12');
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read:= true;
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exit;
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end;
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function write(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
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var
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pport : PHBA_PORT;
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slot : uint32;
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cmdHeader : PCMDHeader;
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cmdTable : PCommand_Table;
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cmdFis : PFIS_REG_H2D;
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i : uint32;
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spin : uint32 = 0;
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begin
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//console.writeintln(sizeof(TCommand_Table));
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//console.writeintln(sizeof(TCommand_Table) + (cmdheader^.PRDTL-1) * sizeof(TPRD_Entry));
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//psleep(1000);
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console.writestringln('1');
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//pport := PHBA_PORT(@hba^.ports[port] + KERNEL_VIRTUAL_BASE);
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//new_page_at_address(uint32(pport));
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console.writestringln('1.1');
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console.writehexln(uint32(hba));
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hba^.ports[port].istat := $ffff;
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console.writestringln('1.2');
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slot := find_cmd_slot(port);
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console.writestringln('1.3');
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if slot = -1 then exit(false);
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console.writestringln('2');
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cmdHeader := PCMDHeader(hba^.ports[port].clb + KERNEL_VIRTUAL_BASE);
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cmdHeader += slot;
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// new_page_at_address(uint32(cmdHeader));
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cmdHeader^.w := false;
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cmdHeader^.PRDTL := uint16(((count - 1) shr 4) + 1);
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console.writestringln('3');
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cmdTable := PCommand_Table(cmdheader^.ctba);
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// new_page_at_address(uint32(cmdTable));
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// new_page_at_address(uint32(@cmdTable^.prdt));
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console.writehexln(uint32(cmdTable));
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kpalloc(uint32(cmdTable));
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memset(uint32(cmdTable), 0, sizeof(TCommand_Table));
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console.writestringln('4');
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console.writestring('PRDTL: ');
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console.writeintln(cmdHeader^.PRDTL);
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if cmdHeader^.PRDTL > 0 then begin
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console.writestringln('4.1');
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for i:= 0 to cmdHeader^.PRDTL -1 do begin
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console.writestring('PRDTL: ');
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console.writeintln(cmdHeader^.PRDTL - 1);
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console.writestring('i: ');
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console.writeintln(i);
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console.writestringln('4.2');
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console.writehexln(uint32(cmdTable));
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cmdTable^.prdt[i].data_base_address := uint32(buf);
|
||||
console.writestringln('4.3');
|
||||
cmdTable^.prdt[i].data_byte_count := 8*1024-1;
|
||||
console.writestringln('4.4');
|
||||
cmdTable^.prdt[i].interrupt_oc := false;
|
||||
buf += 4*1024;
|
||||
count -= 16;
|
||||
end;
|
||||
end;
|
||||
|
||||
console.writestringln('5');
|
||||
cmdTable^.prdt[cmdHeader^.PRDTL].data_base_address := uint32(buf);
|
||||
console.writestringln('5.1');
|
||||
cmdTable^.prdt[cmdHeader^.PRDTL].data_byte_count := (count shl 9)-1;
|
||||
console.writestringln('5.2');
|
||||
cmdTable^.prdt[cmdHeader^.PRDTL].interrupt_oc := false;
|
||||
|
||||
console.writestringln('6');
|
||||
//cmdfis := PFIS_REG_H2D(@cmdTable^.cfis);
|
||||
//new_page_at_address(uint32(cmdfis));
|
||||
cmdTable^.cfis.coc := true;
|
||||
cmdTable^.cfis.command := $35;
|
||||
cmdTable^.cfis.lba0 := uint8(startl);
|
||||
cmdTable^.cfis.lba1 := uint8(startl shr 8);
|
||||
cmdTable^.cfis.lba2 := uint8(startl shr 16);
|
||||
cmdTable^.cfis.device := 1 shl 6;
|
||||
cmdTable^.cfis.lba3 := uint8(startl shr 24);
|
||||
cmdTable^.cfis.lba4 := uint8(starth);
|
||||
cmdTable^.cfis.lba3 := uint8(starth shr 8);
|
||||
cmdTable^.cfis.count_low := count and $FF;
|
||||
cmdTable^.cfis.count_high:= (count shr 8) and $FF;
|
||||
|
||||
console.writestringln('7');
|
||||
while (hba^.ports[port].tfd and $88) and spin < 1000000 do begin
|
||||
spin += 1;
|
||||
end;
|
||||
|
||||
console.writestringln('8');
|
||||
if spin = 1000000 then begin
|
||||
console.writestringln('AHCI controller: port is hung!');
|
||||
write:= false;
|
||||
exit;
|
||||
end;
|
||||
|
||||
console.writestringln('9');
|
||||
hba^.ports[port].ci := 1 shl slot;
|
||||
//hba^.ports[port].ci := 1;
|
||||
|
||||
console.writestringln('10');
|
||||
while true do begin
|
||||
if(hba^.ports[port].ci and (1 shl slot)) = (1 shl slot) then break;
|
||||
if(hba^.ports[port].istat and (1 shl 30)) = (1 shl 30) then begin
|
||||
console.writestringln('AHCI controller: Disk write error!');
|
||||
write:= false;
|
||||
exit;
|
||||
end;
|
||||
end;
|
||||
|
||||
console.writestringln('11');
|
||||
if(hba^.ports[port].istat and (1 shl 30)) = (1 shl 30) then begin
|
||||
console.writestringln('AHCI controller: Disk write error!');
|
||||
write:= false;
|
||||
exit;
|
||||
end;
|
||||
|
||||
console.writestringln('12');
|
||||
write:= true;
|
||||
exit;
|
||||
end;
|
||||
|
||||
function find_cmd_slot(port : uint8) : uint32;
|
||||
var
|
||||
slots : uint32;
|
||||
i : uint32;
|
||||
begin
|
||||
slots := hba^.ports[port].sact or hba^.ports[port].ci;
|
||||
for i:=0 to 31 do begin
|
||||
if (slots and 1) = 0 then begin
|
||||
exit(i);
|
||||
end;
|
||||
slots := slots shr 1;
|
||||
end;
|
||||
console.writestringln('AHCI Controller: Unable to find free command slots!');
|
||||
exit(-1);
|
||||
end;
|
||||
|
||||
procedure test(value : uint32);
|
||||
var
|
||||
thing : PuInt32;
|
||||
begin
|
||||
thing:= Puint32(kalloc(1024*16));
|
||||
thing^:= value;
|
||||
write(0, $1, $0, 6, puint32(thing - KERNEL_VIRTUAL_BASE) );
|
||||
thing^:= 365;
|
||||
read(0, $1, $0, 6, puint32(thing - KERNEL_VIRTUAL_BASE) );
|
||||
console.writeintln(thing^);
|
||||
end;
|
||||
|
||||
end.
|
||||
|
||||
@ -1,271 +0,0 @@
|
||||
{ ************************************************
|
||||
* Asuro
|
||||
* Unit: Drivers/ATA
|
||||
* Description: ATA DMA Driver
|
||||
* currently a hack needs to be re-written if works
|
||||
************************************************
|
||||
* Author: Aaron Hance
|
||||
* Contributors:
|
||||
************************************************ }
|
||||
unit ATA;
|
||||
|
||||
interface
|
||||
|
||||
uses
|
||||
util,
|
||||
drivertypes,
|
||||
console,
|
||||
terminal,
|
||||
isr76,
|
||||
vmemorymanager;
|
||||
|
||||
type
|
||||
|
||||
intptr = ^uint32;
|
||||
|
||||
ATA_Device = record
|
||||
reading : boolean;
|
||||
master : boolean;
|
||||
primary : boolean;
|
||||
currentIndex : uint16;
|
||||
device_lba : uint32;
|
||||
Command_Register : uint32;
|
||||
Status_Register : uint32;
|
||||
PRDT_Address_Reg : uint32;
|
||||
end;
|
||||
|
||||
Physical_Region_Descriptor = bitpacked record
|
||||
empty0 : 0..1;
|
||||
MRPB_Address : 1..32; // memory address
|
||||
Byte_Count : 32..47; // size in bytes (0 is 64K)
|
||||
empty1 : 47..63;
|
||||
EOT : 63..64; // end of table
|
||||
empty2 : 64..65;
|
||||
end;
|
||||
|
||||
ATA_Command_Buffer = bitpacked record
|
||||
start_stop_bit : 0..1; // 0 stopped
|
||||
read_write_bit : 3..4; // 0 read
|
||||
end;
|
||||
|
||||
ATA_Status_Buffer = bitpacked record end;
|
||||
|
||||
ATA_IO_PORT = record
|
||||
data : uint16;
|
||||
error : uint8;
|
||||
sector_count : uint8;
|
||||
lba_low : uint8;
|
||||
lba_mid : uint8;
|
||||
lba_hi : uint8;
|
||||
drive : uint8;
|
||||
command : uint8;
|
||||
end;
|
||||
|
||||
var
|
||||
ports : ATA_IO_PORT;
|
||||
devices : array[0..4] of ATA_Device;
|
||||
PRD_Table : array[0..100] of Physical_Region_Descriptor; // up 64K r/w each, upto 8000 supported per table.
|
||||
controller : TPCI_device;
|
||||
|
||||
procedure init(_controller : TPCI_device);
|
||||
procedure read(address : uint32; data_lba : uint32; data_bytes : uint32);
|
||||
procedure write(address : uint32; data_lba : uint32; data_bytes : uint32);
|
||||
procedure callback(data : void);
|
||||
|
||||
implementation
|
||||
|
||||
procedure init(_controller : TPCI_device); //alloc, pmem; map_page vmem;
|
||||
begin
|
||||
console.writestringln('ATA: INIT BEGIN.');
|
||||
isr76.hook(uint32(@callback));
|
||||
|
||||
controller := _controller;
|
||||
|
||||
new_page_at_address(controller.address4);
|
||||
|
||||
devices[0].primary := true;
|
||||
devices[0].Command_Register := controller.address4;
|
||||
devices[0].Status_Register := controller.address4 + 2;
|
||||
devices[0].PRDT_Address_Reg := controller.address4 + 4;
|
||||
|
||||
ports.command := $1F7;
|
||||
ports.lba_low := $1F3;
|
||||
ports.lba_mid := $1F4;
|
||||
ports.lba_hi := $1F5;
|
||||
ports.drive := $1F6;
|
||||
ports.sector_count := $F2;
|
||||
console.writestringln('ATA: INIT END.');
|
||||
end;
|
||||
|
||||
procedure read(address : uint32; data_lba : uint32; data_bytes : uint32);
|
||||
var
|
||||
PRD : Physical_Region_Descriptor;
|
||||
empty_table : array[0..100] of Physical_Region_Descriptor;
|
||||
i : uint32;
|
||||
ptr : intptr;
|
||||
sector_count : uint8;
|
||||
cb : ATA_Command_Buffer;
|
||||
begin
|
||||
devices[0].device_lba := data_lba;
|
||||
devices[0].reading := true;
|
||||
PRD_Table := empty_table;
|
||||
PRD.MRPB_Address := address;
|
||||
|
||||
//limit
|
||||
if data_bytes > 6400000 then exit;
|
||||
|
||||
if data_bytes < 64001 then begin
|
||||
PRD.EOT := 1;
|
||||
if data_bytes = 64000 then begin
|
||||
PRD.Byte_Count := 0
|
||||
end else begin
|
||||
PRD.Byte_Count := data_bytes;
|
||||
end;
|
||||
end else begin
|
||||
while data_bytes > 64000 do begin
|
||||
PRD.EOT := 0;
|
||||
PRD.MRPB_Address := address;
|
||||
PRD.Byte_Count := 0;
|
||||
|
||||
data_bytes := data_bytes - 64000;
|
||||
address := address + 64000;
|
||||
end;
|
||||
|
||||
PRD.EOT := 1;
|
||||
PRD.MRPB_Address := address;
|
||||
PRD.Byte_Count := data_bytes;
|
||||
|
||||
end;
|
||||
|
||||
ptr := intptr(devices[0].PRDT_Address_Reg);
|
||||
ptr^ := uint32(@PRD_Table);
|
||||
|
||||
ptr := intptr(devices[0].Status_Register);
|
||||
ptr^ := 0;
|
||||
|
||||
outb(ports.drive, $A0);
|
||||
outb(ports.sector_count, 125);
|
||||
outb(ports.lba_low, (data_lba and $000000FF));
|
||||
outb(ports.lba_mid, (data_lba and $0000FF00) SHR 8);
|
||||
outb(ports.lba_hi, (data_lba and $0000FF00) SHR 16);
|
||||
outb(ports.command, $C8);
|
||||
devices[0].currentIndex := 1;
|
||||
|
||||
cb.start_stop_bit := 1;
|
||||
cb.read_write_bit := 0;
|
||||
|
||||
ptr := intptr(devices[0].Command_Register);
|
||||
ptr^ := uint8(cb);
|
||||
|
||||
end;
|
||||
|
||||
procedure write(address : uint32; data_lba : uint32; data_bytes : uint32);
|
||||
var
|
||||
PRD : Physical_Region_Descriptor;
|
||||
empty_table : array[0..100] of Physical_Region_Descriptor;
|
||||
i : uint32;
|
||||
ptr : intptr;
|
||||
sector_count : uint8;
|
||||
cb : ATA_Command_Buffer;
|
||||
begin
|
||||
devices[0].device_lba := data_lba;
|
||||
devices[0].reading := true;
|
||||
PRD_Table := empty_table;
|
||||
PRD.MRPB_Address := address;
|
||||
|
||||
//limit
|
||||
if data_bytes > 6400000 then exit;
|
||||
|
||||
if data_bytes < 64001 then begin
|
||||
PRD.EOT := 1;
|
||||
if data_bytes = 64000 then begin
|
||||
PRD.Byte_Count := 0
|
||||
end else begin
|
||||
PRD.Byte_Count := data_bytes;
|
||||
end;
|
||||
end else begin
|
||||
while data_bytes > 64000 do begin
|
||||
PRD.EOT := 0;
|
||||
PRD.MRPB_Address := address;
|
||||
PRD.Byte_Count := 0;
|
||||
|
||||
data_bytes := data_bytes - 64000;
|
||||
address := address + 64000;
|
||||
end;
|
||||
|
||||
PRD.EOT := 1;
|
||||
PRD.MRPB_Address := address;
|
||||
PRD.Byte_Count := data_bytes;
|
||||
|
||||
end;
|
||||
|
||||
ptr := intptr(devices[0].PRDT_Address_Reg);
|
||||
ptr^ := uint32(@PRD_Table);
|
||||
|
||||
ptr := intptr(devices[0].Status_Register);
|
||||
ptr^ := 0;
|
||||
|
||||
outb(ports.drive, $A0);
|
||||
outb(ports.sector_count, 125);
|
||||
outb(ports.lba_low, (data_lba and $000000FF));
|
||||
outb(ports.lba_mid, (data_lba and $0000FF00) SHR 8);
|
||||
outb(ports.lba_hi, (data_lba and $0000FF00) SHR 16);
|
||||
outb(ports.command, $CA);
|
||||
devices[0].currentIndex := 1;
|
||||
|
||||
cb.start_stop_bit := 1;
|
||||
cb.read_write_bit := 1;
|
||||
|
||||
ptr := intptr(devices[0].Command_Register);
|
||||
ptr^ := uint8(cb);
|
||||
|
||||
end;
|
||||
|
||||
procedure callback(data : void); //need r/w, is last
|
||||
var
|
||||
cb : ATA_Command_Buffer;
|
||||
ptr : intptr;
|
||||
tmp : uint16;
|
||||
mode : uint8;
|
||||
begin
|
||||
if(PRD_Table[devices[0].currentIndex - 1].EOT = 1) then begin
|
||||
//other stuff
|
||||
exit;
|
||||
end;
|
||||
|
||||
//if(devices[0].reading = true) then begin
|
||||
if(PRD_Table[devices[0].currentIndex].EOT = 0) then begin
|
||||
outb(ports.sector_count, 125);
|
||||
outb(ports.lba_low, (devices[0].device_lba + (64000 * devices[0].currentIndex)) and $000000FF);
|
||||
outb(ports.lba_mid, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 8);
|
||||
outb(ports.lba_hi, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 16);
|
||||
//outb(ports.command, $C8);
|
||||
end else begin
|
||||
tmp := uint16((PRD_Table[devices[0].currentIndex].Byte_Count and $FFFF) DIV 512);
|
||||
outb(ports.sector_count, uint16(tmp)); // wont work if 64k
|
||||
outb(ports.lba_low, (devices[0].device_lba + (64000 * devices[0].currentIndex)) and $000000FF);
|
||||
outb(ports.lba_mid, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 8);
|
||||
outb(ports.lba_hi, (((devices[0].device_lba + (64000 * devices[0].currentIndex))) and $0000FF00) SHR 16);
|
||||
//outb(ports.command, $C8);
|
||||
end;
|
||||
|
||||
if(devices[0].reading = true) then begin
|
||||
outb(ports.command, $C8);
|
||||
cb.start_stop_bit := 1;
|
||||
cb.read_write_bit := 0;
|
||||
end else begin
|
||||
outb(ports.command, $CA);
|
||||
cb.start_stop_bit := 1;
|
||||
cb.read_write_bit := 1;
|
||||
end;
|
||||
ptr := intptr(devices[0].Command_Register);
|
||||
ptr^ := uint8(cb);
|
||||
|
||||
|
||||
devices[0].currentIndex := devices[0].currentIndex + 1;
|
||||
//end;
|
||||
end;
|
||||
|
||||
|
||||
|
||||
end.
|
||||
@ -303,6 +303,16 @@ begin
|
||||
|
||||
end;
|
||||
|
||||
// buffer:= puint8(kalloc(512));
|
||||
// buffer[0] := 1;
|
||||
// buffer[1] := 2;
|
||||
// buffer[2] := 3;
|
||||
// buffer[3] := 4;
|
||||
// buffer[4] := 5;
|
||||
// buffer[5] := 6;
|
||||
// writePIO28(0, 3, buffer);
|
||||
// kfree(puint32(buffer));
|
||||
|
||||
console.writestringln('[IDE] (LOAD) END');
|
||||
pop_trace();
|
||||
end;
|
||||
@ -397,7 +407,7 @@ begin
|
||||
//send write command
|
||||
port_write(ATA_REG_COMMAND, ATA_CMD_WRITE_PIO);
|
||||
|
||||
console.writestringln('ide write sttart');
|
||||
console.writestringlnWND('ide write start', getTerminalHWND());
|
||||
console.redrawWindows();
|
||||
|
||||
//write data
|
||||
@ -407,7 +417,7 @@ begin
|
||||
i:= i + 2;
|
||||
end;
|
||||
|
||||
console.writestringln('ise write stop');
|
||||
console.writestringlnWND('ide write end', getTerminalHWND());
|
||||
console.redrawWindows();
|
||||
|
||||
//flush drive cache
|
||||
|
||||
@ -110,7 +110,7 @@ end;
|
||||
|
||||
function load(ptr : void) : boolean;
|
||||
begin
|
||||
console.outputln('DUMMY DRIVER', 'LOADED.')
|
||||
console.outputln('FAT32', 'LOADED.')
|
||||
end;
|
||||
|
||||
function cleanString(str : pchar; status : puint32) : byteArray8;
|
||||
@ -754,6 +754,7 @@ end;
|
||||
procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
|
||||
var
|
||||
buffer : puint32;
|
||||
bt: puint32;
|
||||
zeroBuffer : puint32;
|
||||
bootRecord : PBootRecord;
|
||||
dataStart : uint32;
|
||||
@ -800,7 +801,7 @@ begin //maybe increase buffer size by one?
|
||||
// memset(uint32(buffer), 0, sizeof(TBootRecord));
|
||||
// bootRecord:= PBootRecord(buffer);
|
||||
|
||||
buffer:= puint32(kalloc(disk^.sectorSize));
|
||||
buffer:= puint32(kalloc(disk^.sectorSize+512));
|
||||
memset(uint32(buffer), 0, disk^.sectorSize);
|
||||
|
||||
bootRecord:= PBootRecord(buffer);
|
||||
@ -824,9 +825,41 @@ begin //maybe increase buffer size by one?
|
||||
bootRecord^.bsignature := $29;
|
||||
bootRecord^.identString := fatArray;
|
||||
|
||||
puint32(buffer)[127]:= $55AA;
|
||||
|
||||
disk^.writecallback(disk, start + 1, 1, buffer);
|
||||
console.writestringWND('spc', getTerminalHWND());
|
||||
console.writeintlnWND(config^, getTerminalHWND());
|
||||
console.writestringWND('sectors', getTerminalHWND());
|
||||
console.writeintlnWND(sectors, getTerminalHWND());
|
||||
console.writestringWND('sectorsize', getTerminalHWND());
|
||||
console.writeintlnWND(disk^.sectorsize, getTerminalHWND());
|
||||
|
||||
console.redrawWindows();
|
||||
|
||||
bt:= puint32(kalloc(512));
|
||||
|
||||
bt[1] := 1;
|
||||
bt[2] := 1;
|
||||
bt[3] := 1;
|
||||
bt[4] := 1;
|
||||
bt[5] := 1;
|
||||
bt[6] := 1;
|
||||
bt[7] := 11;
|
||||
bt[8] := 33;
|
||||
bt[9] := 22;
|
||||
disk^.writecallback(disk, 3, 1, puint32(bt));
|
||||
|
||||
|
||||
// puint32(buffer)[127]:= $55AA;
|
||||
|
||||
console.writestringlnWND('writting to bootrecord', getTerminalHWND());
|
||||
console.writeintlnWND(start + 1, getTerminalHWND());
|
||||
console.redrawWindows;
|
||||
|
||||
disk^.writecallback(disk, start + 1, 1, puint32(buffer));
|
||||
|
||||
console.writestringlnWND('finished writting to bootrecord', getTerminalHWND());
|
||||
|
||||
console.redrawWindows;
|
||||
|
||||
fatStart:= start + 1 + bootRecord^.rsvSectors;
|
||||
dataStart:= fatStart + bootRecord^.FATSize;
|
||||
@ -843,10 +876,14 @@ begin //maybe increase buffer size by one?
|
||||
kfree(buffer);
|
||||
kfree(zeroBuffer);
|
||||
writestring('Frees');
|
||||
console.redrawWindows;
|
||||
console.writestringlnWND('writting 1', getTerminalHWND());
|
||||
console.redrawWindows;
|
||||
|
||||
buffer:= puint32(kalloc(disk^.sectorSize));
|
||||
memset(uint32(buffer), 0, disk^.sectorSize);
|
||||
console.writestringlnWND('writting 1', getTerminalHWND());
|
||||
console.redrawWindows;
|
||||
|
||||
puint32(buffer)[0]:= $FFFFFFF8; //fsinfo
|
||||
puint32(buffer)[1]:= $FFFFFFF8; //root cluster
|
||||
|
||||
@ -1,604 +0,0 @@
|
||||
{ ************************************************
|
||||
* Asuro
|
||||
* Unit: Drivers/storage/fat32
|
||||
* Description: fat32 file system driver
|
||||
*
|
||||
************************************************
|
||||
* Author: Aaron Hance
|
||||
* Contributors:
|
||||
************************************************ }
|
||||
|
||||
{
|
||||
Todo in the future, optimise by prvoiding batch read/write commands
|
||||
|
||||
}
|
||||
|
||||
unit FAT32;
|
||||
|
||||
interface
|
||||
|
||||
uses
|
||||
console,
|
||||
storagemanagement,
|
||||
util, terminal,
|
||||
lmemorymanager,
|
||||
strings,
|
||||
lists,
|
||||
tracer,
|
||||
serial;
|
||||
|
||||
type
|
||||
|
||||
TBootRecord = bitpacked record
|
||||
jmp2boot : ubit24;
|
||||
OEMName : array[0..7] of char;
|
||||
sectorSize : uint16;
|
||||
spc : uint8;
|
||||
rsvSectors : uint16;
|
||||
numFats : uint8;
|
||||
numDirEnt : uint16;
|
||||
numSectors : uint16;
|
||||
mediaDescp : uint8;
|
||||
sectorsPerFat : uint16;
|
||||
sectorsPerTrack : uint16;
|
||||
heads : uint16;
|
||||
hiddenSectors : uint32;
|
||||
manySectors : uint32;
|
||||
FATSize : uint32;
|
||||
flags : uint16;
|
||||
signature : uint8;
|
||||
FATVersion : uint16;
|
||||
rootCluster : uint32;
|
||||
FSInfoCluster : uint16;
|
||||
backupCluster : uint16;
|
||||
reserved0 : array[0..11] of uint8;
|
||||
driveNumber : uint8;
|
||||
reserved1 : uint8;
|
||||
bsignature : uint8;// = $28;
|
||||
volumeID : uint32;
|
||||
volumeLabel : array[0..10] of uint8;
|
||||
identString : array[0..7] of char;// = 'FAT32 ';
|
||||
end;
|
||||
PBootRecord = ^TBootRecord;
|
||||
|
||||
byteArray8 = array[0..7] of char;
|
||||
|
||||
TDirectory = packed record
|
||||
fileName : array[0..7] of char;
|
||||
fileExtension : array[0..2] of char;
|
||||
attributes : uint8;
|
||||
reserved0 : uint8;
|
||||
timeFine : uint8;
|
||||
time : uint16;
|
||||
date : uint16;
|
||||
accessTime : uint16;
|
||||
clusterHigh : uint16;
|
||||
modifiedTime : uint16;
|
||||
modifiedDate : uint16;
|
||||
clusterLow : uint16;
|
||||
byteSize : uint32;
|
||||
end;
|
||||
PDirectory = ^TDirectory;
|
||||
|
||||
TFilesystemInfo = record
|
||||
leadSignature : uint32;
|
||||
reserved0 : array[0..479] of uint8;
|
||||
structSignature : uint32;
|
||||
freeSectors : uint32;
|
||||
nextFreeSector : uint32;
|
||||
reserved1 : array[0..11] of uint8;
|
||||
trailSignature : uint32;
|
||||
end;
|
||||
|
||||
TFatVolumeInfo = record
|
||||
sectorsPerCluster : uint8; // must be power of 2 and mult by sectorsize to max 32k
|
||||
end;
|
||||
PFatVolumeInfo = ^TFatVolumeInfo;
|
||||
|
||||
var
|
||||
filesystem : TFilesystem;
|
||||
|
||||
procedure init;
|
||||
procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
|
||||
procedure detect_volumes(disk : PStorage_Device);
|
||||
//function writeDirectory(volume : PStorage_volume; directory : pchar; attributes : uint32) : uint8; // need to handle parent table cluster overflow, need to take attributes
|
||||
//function readDirectory(volume : PStorage_volume; directory : pchar; listPtr : PLinkedListBase) : uint8; //returns: 0 = success, 1 = dir not exsist, 2 = not directory, 3 = error
|
||||
|
||||
|
||||
implementation
|
||||
|
||||
procedure STOS(str : PChar);
|
||||
var
|
||||
i : uint32;
|
||||
|
||||
begin
|
||||
for i:=0 to StringSize(str)-1 do begin
|
||||
serial.send(COM1, uint8(str[i]), 100);
|
||||
end;
|
||||
serial.send(COM1, 13, 100);
|
||||
end;
|
||||
|
||||
function load(ptr : void) : boolean;
|
||||
begin
|
||||
console.outputln('DUMMY DRIVER', 'LOADED.')
|
||||
end;
|
||||
|
||||
function readBootRecord(volume : PStorage_volume) : TBootRecord; // need write functions for boot record!
|
||||
var
|
||||
buffer : puint32;
|
||||
begin
|
||||
buffer:= puint32(kalloc(512 + 512));
|
||||
volume^.device^.readcallback(volume^.device, volume^.sectorStart + 1, 1, buffer);
|
||||
readBootRecord:= PBootRecord(buffer)^;
|
||||
kfree(buffer);
|
||||
end;
|
||||
|
||||
function readFat(volume : PStorage_volume; cluster : uint32): uint32; //TODO need KFREE after use
|
||||
var
|
||||
buffer : puint32;
|
||||
bootRecord : TBootRecord;
|
||||
BytesPerFatEntree: uint8 = 4;
|
||||
sectorLocation: uint32;
|
||||
fatEntriesPerSector : uint32;
|
||||
begin
|
||||
push_trace('fat32.readFat');
|
||||
bootRecord := readBootRecord(volume);
|
||||
fatEntriesPerSector:= bootRecord.sectorSize div BytesPerFatEntree;
|
||||
sectorLocation:= cluster div fatEntriesPerSector;
|
||||
|
||||
buffer:= puint32(kalloc(bootRecord.sectorSize + 512));
|
||||
//console.writeintlnWND(sectorLocation, );
|
||||
volume^.device^.readcallback(volume^.device, volume^.sectorStart + 2 + sectorLocation, 1, buffer);
|
||||
readFat:= buffer[cluster - (sectorLocation * fatEntriesPerSector)];
|
||||
kfree(buffer);
|
||||
end;
|
||||
|
||||
procedure writeFat(volume : PStorage_volume; cluster : uint32; value : uint32); // untested, but should work
|
||||
var
|
||||
buffer : puint32;
|
||||
bootRecord : TBootRecord;
|
||||
BytesPerFatEntree: uint8 = 4;
|
||||
sectorLocation: uint32;
|
||||
fatEntriesPerSector : uint32;
|
||||
begin
|
||||
push_trace('fat32.writeFat');
|
||||
bootRecord := readBootRecord(volume);
|
||||
fatEntriesPerSector:= bootRecord.sectorSize div BytesPerFatEntree;
|
||||
sectorLocation:= cluster div fatEntriesPerSector;
|
||||
|
||||
buffer:= puint32(kalloc(bootrecord.sectorSize + 512));
|
||||
memset(uint32(buffer), 0, 512);
|
||||
|
||||
volume^.device^.readcallback(volume^.device, volume^.sectorStart + 2 + sectorLocation, 1, buffer);
|
||||
buffer[cluster - (sectorLocation * fatEntriesPerSector)]:= value; // not gonna work boi
|
||||
volume^.device^.writecallback(volume^.device, volume^.sectorStart + 2 + sectorLocation, 1, buffer);
|
||||
kfree(buffer);
|
||||
end;
|
||||
|
||||
function readDirectory(volume : PStorage_volume; directory : pchar; listPtr : PLinkedListBase) : uint8; //returns: 0 = success, 1 = dir not exsist, 2 = not directory, 3 = error
|
||||
var
|
||||
directories : PLinkedListBase;
|
||||
rootTable : PLinkedListBase;
|
||||
clusters : PLinkedListBase;
|
||||
dirElm : void;
|
||||
buffer : puint32;
|
||||
//buffer : puint32;
|
||||
bootRecord : TBootRecord;
|
||||
clusterInfo : uint32;
|
||||
cc : uint32;
|
||||
clusterByteSize : uint32;
|
||||
fatSectorSize : uint32;
|
||||
device : PStorage_Device;
|
||||
i : uint32;
|
||||
dirI : uint32 = 0;
|
||||
str : pchar;
|
||||
targetStr : pchar;
|
||||
dir : PDirectory;
|
||||
clusterAllocSize : uint32;
|
||||
begin
|
||||
push_trace('freadDirectory');
|
||||
|
||||
console.writestringln('r1');
|
||||
console.redrawWindows();
|
||||
|
||||
rootTable := LL_New(sizeof(TDirectory));
|
||||
clusters := LL_New(sizeof(uint32));
|
||||
directories := stringToLL(directory, '/');
|
||||
bootRecord := readBootRecord(volume);
|
||||
device := volume^.device;
|
||||
clusterByteSize := bootrecord.spc * bootrecord.sectorSize;
|
||||
fatSectorSize := bootrecord.fatSize;
|
||||
|
||||
readDirectory:= 0;
|
||||
// if readFat(volume, bootrecord.rootCluster) = $FFFFFFF8 then begin
|
||||
// buffer:= puint32(kalloc((bootrecord.spc * 512) + 1));
|
||||
// volume^.device^.readcallback(volume^.device, volume^.sectorStart + 1 + (bootrecord.fatSize div 512) + (bootRecord.spc * bootRecord.rootCluster), bootrecord.spc, buffer);
|
||||
// end else if readFat(volume, bootrecord.rootCluster) <> $FFFFFFF7 then begin
|
||||
// //need to read multiple clusters to get full directory table
|
||||
// end;
|
||||
|
||||
|
||||
cc:= bootrecord.rootCluster;
|
||||
|
||||
while true do begin
|
||||
|
||||
targetStr:= pchar(LL_Get(directories, dirI));
|
||||
|
||||
//build list of clusters for current directory table
|
||||
while true do begin
|
||||
clusterInfo:= readFat(volume, cc);
|
||||
if clusterInfo = $FFFFFFF7 then begin
|
||||
readDirectory:= 3; //ERROR
|
||||
break;
|
||||
end else if clusterInfo = $FFFFFFF8 then begin
|
||||
//last dir table cluster
|
||||
dirElm:= LL_Add(clusters);
|
||||
uint32(dirElm^):= cc;
|
||||
break;
|
||||
end else if clusterInfo = 0 then begin
|
||||
break;
|
||||
end else begin
|
||||
//dir is longer than one cluster
|
||||
dirElm:= LL_Add(clusters);
|
||||
uint32(dirElm^):= cc;
|
||||
cc:= clusterInfo;
|
||||
end;
|
||||
end;
|
||||
|
||||
console.writestringln('r2');
|
||||
console.redrawWindows();
|
||||
|
||||
//load clusters into buffer
|
||||
clusterAllocSize:= (clusterByteSize * (LL_size(clusters))) + 1024; //TODO FIX
|
||||
buffer:= puint32(kalloc(clusterAllocSize + 512));
|
||||
memset(uint32(buffer), 0, clusterAllocSize);
|
||||
//buffer := buffer;
|
||||
for i:= 0 to LL_size(clusters) - 1 do begin
|
||||
cc:= uint32(LL_Get(clusters, i)^);
|
||||
device^.readcallback(device, volume^.sectorStart + 1 + fatSectorSize + (bootRecord.spc * cc), bootrecord.spc, @buffer[i * (clusterByteSize div 4)] );
|
||||
end;
|
||||
|
||||
console.writestringln('r2.5');
|
||||
console.redrawWindows();
|
||||
|
||||
if dirI = LL_size(directories) - 1 then break;
|
||||
if LL_size(directories) = 0 then break;
|
||||
|
||||
console.writestringln('r3');
|
||||
console.redrawWindows();
|
||||
|
||||
//get elements in the directory table
|
||||
i:=0;
|
||||
while true do begin
|
||||
dir:= PDirectory(buffer);
|
||||
console.writestringln(dir[i].fileName);
|
||||
|
||||
if dir[i].fileName[0] = char(0) then break; //need to check if I have found the right directoy and set cc if not last
|
||||
if (dir[i].attributes and $10) = $10 then begin // is a directory;
|
||||
str:= dir[i].fileName;
|
||||
str[9]:= char(0);
|
||||
if stringEquals(str, targetStr) then begin //need to get current folder searching for
|
||||
cc:= dir[i].clusterLow;
|
||||
cc:= cc or (dir[i].clusterHigh shl 16);
|
||||
end;
|
||||
end;
|
||||
|
||||
//dirElm:= LL_Add(rootTable);
|
||||
//PDirectory(dirElm)^:= dir[i];
|
||||
i+=1;
|
||||
end;
|
||||
|
||||
//set CC
|
||||
dirI += 1;
|
||||
end;
|
||||
|
||||
console.writestringln('r3.5');
|
||||
console.redrawWindows();
|
||||
|
||||
i:=0;
|
||||
while true do begin
|
||||
dir:= PDirectory(buffer);
|
||||
if dir[i].fileName[0] = char(0) then break;
|
||||
|
||||
dirElm:= LL_Add(listPtr);
|
||||
PDirectory(dirElm)^:= dir[i];
|
||||
i+=1;
|
||||
end;
|
||||
|
||||
console.writestringln('r4');
|
||||
console.redrawWindows();
|
||||
|
||||
kfree(buffer);
|
||||
//listPtr := rootTable;
|
||||
//console.writeintln(uint32(listPtr));
|
||||
|
||||
// while true do begin // I need to be inside another loop
|
||||
// if PDirectory(buffer)^.fileName[0] = char(0) then break;
|
||||
// dirElm:= LL_Add(rootTable);
|
||||
// PDirectory(dirElm)^:= PDirectory(buffer)^;
|
||||
|
||||
// console.writestring('FileName: ');
|
||||
// console.writechar(PDirectory(buffer)^.fileName[0]);
|
||||
// //console.writecharln(PDirectory(buffer)^.fileName[1]);
|
||||
// buffer:= puint32(buffer + 8);
|
||||
// end;
|
||||
|
||||
end;
|
||||
|
||||
function findFreeCluster(volume : PStorage_volume) : uint32;
|
||||
var
|
||||
i : uint32 = 1;
|
||||
currentCluster : uint32;
|
||||
begin
|
||||
push_trace('fat32.findFreeCluster');
|
||||
while true do begin
|
||||
currentCluster:= readFat(volume, i);
|
||||
if currentCluster = 0 then begin
|
||||
findFreeCluster:= i;
|
||||
break;
|
||||
end;
|
||||
i+=1;
|
||||
end;
|
||||
end;
|
||||
|
||||
//expects dirName to be packed with spaces.
|
||||
function writeDirectory(volume : PStorage_volume; directory : pchar; dirName : pchar; attributes : uint32) : uint8; // need to handle parent table cluster overflow, need to take attributes
|
||||
var
|
||||
dirList : PLinkedListBase;
|
||||
i : uint32 = 0;
|
||||
ii : uint32 = 0;
|
||||
buffer : puint32;
|
||||
bootRecord : TBootRecord;
|
||||
device : PStorage_Device;
|
||||
dataStart : uint32;
|
||||
cluster : uint32;
|
||||
parentDir : PDirectory;
|
||||
parentCluster : uint32;
|
||||
emptyEntree : uint32;
|
||||
dirIndex : uint32;
|
||||
entriesPerSector: uint32;
|
||||
entrySector : uint32;
|
||||
|
||||
meArray : byteArray8 = ('.', ' ', ' ', ' ', ' ', ' ', ' ', ' ');
|
||||
parentArray : byteArray8 = ('.', '.', ' ', ' ', ' ', ' ', ' ', ' ');
|
||||
begin
|
||||
push_trace('fat32.writeDirectory'); //////////////////////////TODO need to make sure writing is to data area not fat area DERRRRRRRPPPP!!!
|
||||
bootRecord := readBootRecord(volume);
|
||||
device := volume^.device;
|
||||
buffer := puint32(kalloc(sizeof(volume^.sectorSize) + 512));
|
||||
memset(uint32(buffer), 0, 512);
|
||||
|
||||
dataStart:= (bootrecord.fatSize) + 1 + volume^.sectorStart;
|
||||
|
||||
dirList:= LL_New(sizeof(TDirectory));
|
||||
readDirectory(volume, directory, dirList);
|
||||
parentDir:= PDirectory(LL_Get(dirList, 0));
|
||||
parentCluster:= parentDir^.clusterLow and (parentDir^.clusterHigh shl 16);
|
||||
|
||||
//write to the fat to allocate area
|
||||
cluster:= findFreeCluster(volume);
|
||||
writeFat(volume, cluster, $FFFFFFF8);
|
||||
|
||||
//write new dir table
|
||||
|
||||
//construct buffer
|
||||
PDirectory(buffer)[0].fileName:= meArray;
|
||||
PDirectory(buffer)[0].attributes:= $10;
|
||||
PDirectory(buffer)[0].clusterLow:= uint16($0000FFFF and cluster);
|
||||
PDirectory(buffer)[0].clusterHigh:= uint16($0000FFFF and (cluster shr 16));
|
||||
|
||||
PDirectory(buffer)[0].fileName:= parentArray;
|
||||
PDirectory(buffer)[0].attributes:= $10;
|
||||
PDirectory(buffer)[0].clusterLow:= parentDir^.clusterLow;
|
||||
PDirectory(buffer)[0].clusterHigh:= parentDir^.clusterHigh;
|
||||
|
||||
//write buffer
|
||||
volume^.device^.writecallback(volume^.device, dataStart + (cluster * bootrecord.spc), 1, buffer);
|
||||
|
||||
//write to parent dir table
|
||||
|
||||
kfree(buffer);
|
||||
buffer:= puint32(kalloc(bootrecord.sectorSize * 4 + 512));
|
||||
memset(uint32(buffer), 0, bootrecord.sectorsize * 4);
|
||||
|
||||
emptyEntree:= LL_size(dirList) * 4;
|
||||
entriesPerSector:= bootrecord.sectorSize div sizeof(TDirectory);
|
||||
entrySector:= emptyEntree div entriesPerSector + 7;
|
||||
|
||||
volume^.device^.readcallback(volume^.device, dataStart + (parentCluster * bootrecord.spc) + entrySector, 4, buffer);
|
||||
dirIndex:= emptyEntree - (entrySector * entriesPerSector);
|
||||
|
||||
|
||||
PDirectory(buffer)[dirIndex].fileName:= byteArray8(dirName);
|
||||
PDirectory(buffer)[dirIndex].attributes:= $10;
|
||||
PDirectory(buffer)[dirIndex].clusterLow:= uint16($0000FFFF and cluster);
|
||||
PDirectory(buffer)[dirIndex].clusterHigh:= uint16($0000FFFF and (cluster shr 16));
|
||||
|
||||
volume^.device^.writecallback(volume^.device, dataStart + (parentCluster * bootrecord.spc) + entrySector, 4, buffer);
|
||||
|
||||
kfree(buffer);
|
||||
|
||||
end;
|
||||
|
||||
procedure readFile(volume : PStorage_volume; directory : pchar; byteCount : uint32; buffer : puint32);
|
||||
begin
|
||||
|
||||
end;
|
||||
//need to be able to increase no of clusted used by a directory
|
||||
procedure writeFile(volume : PStorage_volume; directory : pchar; byteCount : uint32; buffer : puint32);
|
||||
begin
|
||||
|
||||
end;
|
||||
|
||||
procedure init;
|
||||
begin
|
||||
filesystem.sName:= 'FAT32';
|
||||
filesystem.writecallback:= @writeFile;
|
||||
filesystem.readcallback:= @readFile;
|
||||
filesystem.createcallback:= @create_volume;
|
||||
filesystem.detectcallback:= @detect_volumes;
|
||||
filesystem.createDirCallback:= @writeDirectory;
|
||||
filesystem.readDirCallback:= @readDirectory;
|
||||
storagemanagement.register_filesystem(@filesystem);
|
||||
end;
|
||||
|
||||
procedure create_volume(disk : PStorage_Device; sectors : uint32; start : uint32; config : puint32);
|
||||
var
|
||||
i : uint32;
|
||||
bootRecord : TBootRecord;
|
||||
buffer : puint32;
|
||||
asuroArray : byteArray8 = ('A','S','U','R','O',' ','V','1');
|
||||
fatArray : byteArray8 = ('F','A','T','3','2',' ',' ',' ');
|
||||
tmpArray : byteArray8;
|
||||
|
||||
fatStart : uint32;
|
||||
dataStart: uint32;
|
||||
|
||||
begin
|
||||
buffer:= puint32(kalloc(1024));
|
||||
memset(uint32(buffer), 0, 512);
|
||||
|
||||
for i:=1 to 512 do begin
|
||||
disk^.writeCallback(disk, i, 1, buffer);
|
||||
end;
|
||||
|
||||
bootrecord.jmp2boot:= $00; // TODO what ahppens here???
|
||||
bootRecord.OEMName:= asuroArray;
|
||||
bootrecord.sectorsize:= disk^.sectorSize;
|
||||
bootrecord.spc:= config^;
|
||||
console.writeintln(uint32(config^));
|
||||
bootrecord.rsvSectors:= 32; //Is this acceptable?
|
||||
bootrecord.numFats:= 1;
|
||||
bootrecord.numDirEnt:= 0;
|
||||
bootRecord.numSectors:= 0;
|
||||
bootrecord.mediaDescp:= $F8;
|
||||
bootrecord.sectorsPerFat:= 0;
|
||||
bootRecord.sectorsPerTrack:= 0;
|
||||
bootRecord.heads:= 0;
|
||||
bootRecord.hiddenSectors:= start;
|
||||
bootRecord.manySectors:= sectors;
|
||||
|
||||
//BootRecord.FATSize:= ((sectors DIV PFatVolumeInfo(config)^.sectorsPerCluster) * 16 DIV disk^.sectorSize);
|
||||
//BootRecord.FATSize:= ((sectors DIV 4) * 2 DIV disk^.sectorSize);
|
||||
BootRecord.FATSize:= ((sectors DIV bootrecord.spc) * 4) DIV 512;
|
||||
//sectors div spc, *
|
||||
BootRecord.flags:= 0; //1 shl 7 for mirroring
|
||||
BootRecord.FATVersion:= 0;
|
||||
BootRecord.rootCluster:= start + 1; // can be changed if needed.
|
||||
BootRecord.FSInfoCluster:= start + 1 + bootrecord.fatSize; //TODO need FSINFO
|
||||
BootRecord.driveNumber:= $80;
|
||||
//BootRecord.reserved0:=0;
|
||||
//BootRecord.reserved1:=0;
|
||||
BootRecord.volumeID := 53424; //need random number generator
|
||||
//BootRecord.volumeLabel[0] := 0; //needs to be set later !!!
|
||||
BootRecord.bsignature:= $29;
|
||||
BootRecord.identString:= fatArray;
|
||||
|
||||
buffer:= @bootrecord;
|
||||
puint32(buffer + (127))^:= $55AA; //end marker
|
||||
|
||||
disk^.writeCallback(disk, start + 1, 1, buffer);
|
||||
|
||||
dataStart:= (bootrecord.fatSize) + 1 + start;
|
||||
|
||||
//TODO FSINFO struct
|
||||
|
||||
//write fat
|
||||
buffer := puint32(kalloc((sectors DIV bootrecord.spc) * 4 + 512));
|
||||
memset(uint32(buffer), 0, (sectors DIV bootrecord.spc) * 4);
|
||||
puint32(buffer + bootRecord.rootCluster - 1)^:= $FFFFFFF7; //make space for fsinfo, by setting this field to bad.
|
||||
puint32(buffer + bootRecord.rootCluster)^:= $FFFFFFF8; //root directory table cluster, currently root is only 1 cluster long
|
||||
disk^.writeCallback(disk, start + 2, (sectors DIV bootrecord.spc) * 4, buffer);
|
||||
//disk^.writeCallback(disk, start + 2 + (sectors Div bootrecord.sectorsPerCluster DIV 512), sectors DIV bootrecord.sectorsPerCluster, buffer);
|
||||
kfree(buffer);
|
||||
|
||||
//setup root directory
|
||||
buffer:= puint32(kalloc(1024));
|
||||
memset(uint32(buffer), 0, 512);
|
||||
|
||||
tmpArray[0]:= '.';
|
||||
tmpArray[1]:= ' ';
|
||||
tmpArray[2]:= ' ';
|
||||
tmpArray[3]:= ' ';
|
||||
tmpArray[4]:= ' ';
|
||||
tmpArray[5]:= ' ';
|
||||
tmpArray[6]:= ' ';
|
||||
tmpArray[7]:= ' ';
|
||||
|
||||
PDirectory(buffer)^.fileName:= tmpArray;
|
||||
PDirectory(buffer)^.attributes:= $10; // is directory
|
||||
PDirectory(buffer)^.clusterLow:= 2; //my cluster location
|
||||
|
||||
tmpArray[1]:= '.';
|
||||
PDirectory(buffer + (sizeof(TDirectory) DIV 4 ) )^.fileName:= tmpArray;
|
||||
PDirectory(buffer + (sizeof(TDirectory) DIV 4) )^.attributes:= $08; // volume id
|
||||
PDirectory(buffer + (sizeof(TDirectory) DIV 4) )^.clusterLow:= 2; //my cluster location
|
||||
|
||||
tmpArray[0]:= 'M';
|
||||
tmpArray[1]:= 'U';
|
||||
tmpArray[2]:= 'S';
|
||||
tmpArray[3]:= 'I';
|
||||
tmpArray[4]:= 'C';
|
||||
PDirectory(buffer + (sizeof(TDirectory) * 2 DIV 4 ) )^.fileName:= tmpArray;
|
||||
PDirectory(buffer + (sizeof(TDirectory) * 2 DIV 4) )^.attributes:= $10; // volume id
|
||||
PDirectory(buffer + (sizeof(TDirectory) * 2 DIV 4) )^.clusterLow:= 2; //my cluster location
|
||||
|
||||
disk^.writeCallback(disk, dataStart + (bootRecord.spc * bootrecord.rootCluster), 1, buffer);
|
||||
|
||||
end;
|
||||
|
||||
procedure detect_volumes(disk : PStorage_Device);
|
||||
var
|
||||
buffer : puint32;
|
||||
i : uint8;
|
||||
volume : PStorage_volume;
|
||||
|
||||
dir : PDirectory;
|
||||
dirs : PLinkedListBase;
|
||||
begin
|
||||
push_trace('detect volume');
|
||||
redrawWindows();
|
||||
//sleep(1);
|
||||
|
||||
volume:= PStorage_volume(kalloc(sizeof(TStorage_Volume)));
|
||||
//check first address for MBR
|
||||
//if found then add volume and use info to see if there is another volume
|
||||
buffer := puint32(kalloc(512));
|
||||
memset(uint32(buffer), 0, 512);
|
||||
disk^.readcallback(disk, 2, 1, buffer);
|
||||
|
||||
if (puint32(buffer)[127] = $55AA) and (PBootRecord(buffer)^.bsignature = $29) then begin
|
||||
console.writestringln('FAT32: volume found!');
|
||||
volume^.device:= disk;
|
||||
volume^.sectorStart:= 1;
|
||||
volume^.sectorSize:= PBootRecord(buffer)^.sectorSize;
|
||||
volume^.freeSectors:= 1000000; //TODO implement get free sectors need FSINFO implemented first
|
||||
volume^.filesystem := @filesystem;
|
||||
storagemanagement.register_volume(disk, volume);
|
||||
end;
|
||||
redrawWindows();
|
||||
|
||||
// dirs:= LL_New(sizeof(TDirectory));
|
||||
// readDirectory(volume, '', dirs);
|
||||
|
||||
// for i:=0 to LL_size(dirs) - 1 do begin
|
||||
// dir:= PDirectory(LL_Get(dirs, i));
|
||||
// console.writestringln(pchar(dir^.fileName));
|
||||
// end;
|
||||
|
||||
console.writeintln(findFreeCluster(volume));
|
||||
redrawWindows();
|
||||
while true do begin end;
|
||||
|
||||
|
||||
|
||||
//writeFat(volume, 3, $ADABABAD);
|
||||
//writeDirectory(volume, '', 'hello', $10);
|
||||
//writeDirectory(volume, '', 'poo', $10);
|
||||
//readDirectory(volume, '.', dirs);
|
||||
push_trace('end detect');
|
||||
redrawWindows();
|
||||
kfree(buffer);
|
||||
end;
|
||||
|
||||
end.
|
||||
@ -138,7 +138,7 @@ begin
|
||||
drive := stringToInt(getParam(1, params));
|
||||
console.writeintln(drive); // works
|
||||
if stringEquals(getParam(2, params), 'fat32') then begin
|
||||
PFilesystem(LL_Get(filesystems, 0))^.createCallback((PStorage_Device(LL_Get(storageDevices, drive))), 10000, 1, spc); //todo check fs
|
||||
PFilesystem(LL_Get(filesystems, 0))^.createCallback((PStorage_Device(LL_Get(storageDevices, drive))), 1000, 1, spc); //todo check fs
|
||||
console.writestring('Drive ');
|
||||
//console.writeint(drive); // page faults
|
||||
console.writestringln(' formatted.');
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user