This commit is contained in:
Aaron Hance 2025-03-22 10:20:26 +00:00
parent babe4290e4
commit a2f6d7e76d
9 changed files with 77 additions and 896 deletions

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@ -50,6 +50,7 @@ function send_read_dma(device : PAHCI_Device; lba : uint64; count : uint32; buff
function send_write_dma(device : PAHCI_Device; lba : uint64; count : uint32; buffer : puint32) : boolean; function send_write_dma(device : PAHCI_Device; lba : uint64; count : uint32; buffer : puint32) : boolean;
function read_atapi(device : PAHCI_Device; lba : uint64; count : uint32; buffer : puint32) : boolean; function read_atapi(device : PAHCI_Device; lba : uint64; count : uint32; buffer : puint32) : boolean;
implementation implementation
procedure init(); procedure init();
@ -113,8 +114,44 @@ begin
// Clear the SERR register by writing 1s to it. // Clear the SERR register by writing 1s to it.
port^.sata_error := $FFFFFFFF; port^.sata_error := $FFFFFFFF;
start_port(port);
end; end;
// procedure reset_port(port : PHBA_Port);
// var
// ssts, serr, timeout : uint32;
// begin
// console.writestringln('AHCI: Performing a full port reset.');
// port^.cmd := port^.cmd and not $1;
// // Wait until CR (bit 15) is cleared.
// timeout := 0;
// while (port^.cmd and $8000) <> 0 do begin
// timeout := timeout + 1;
// if timeout > 1000000 then begin
// console.writestringln('AHCI: Port reset timeout.');
// break;
// end;
// end;
// port^.sata_ctrl := port^.sata_ctrl and $FFFF0000;
// port^.sata_ctrl := port^.sata_ctrl or $1;
// psleep(10);
// port^.sata_ctrl := port^.sata_ctrl and $FFFF0000;
// while (port^.sata_status and $F) <> $3 do begin
// //wait for the port to be ready
// end;
// // Clear the SERR register by writing 1s to it.
// port^.sata_error := $FFFFFFFF;
// // start_port(port);
// end;
{ {
Check the ports on the controller and setup the command list, FIS, and command table Check the ports on the controller and setup the command list, FIS, and command table
} }
@ -229,7 +266,6 @@ begin
//reset the port //reset the port
reset_port(port); reset_port(port);
start_port(port);
//print sata status //print sata status
console.writestring('AHCI: sata status: '); console.writestring('AHCI: sata status: ');
@ -383,19 +419,23 @@ begin
console.writestringln(''); console.writestringln('');
buffer := puint32(kalloc(512)); buffer := puint32(kalloc(2048));
memset(uint32(buffer), 0, 512); memset(uint32(buffer), 0, 2048);
//send a read DMA command to the device //send a read DMA command to the device
if isATAPI then begin if isATAPI then begin
read_atapi(device, 16, 512, buffer); read_atapi(device, 0, 2048, buffer);
end else begin end else begin
send_read_dma(device, 10, 512, buffer); memset(uint32(buffer), $77, 2048);
send_write_dma(device, 22, 512, buffer);
memset(uint32(buffer), 0, 2048);
send_read_dma(device, 22, 512, buffer);
end; end;
//print the buffer //print the buffer
for i:=0 to 63 do begin for i:=0 to 63 do begin
console.writehex(uint32(buffer[i])); console.writehex(puInt8(buffer)[i]);
console.writestring(' '); console.writestring(' ');
end; end;
console.writestringln(''); console.writestringln('');
@ -536,7 +576,6 @@ begin
console.writestringln('AHCI: Sending read DMA command'); console.writestringln('AHCI: Sending read DMA command');
reset_port(device^.port); reset_port(device^.port);
start_port(device^.port);
//prdt count is 22 bits //prdt count is 22 bits
prdt_count := (count div 4194304) + 1; prdt_count := (count div 4194304) + 1;
@ -647,7 +686,6 @@ begin
console.writestringln('AHCI: Sending write DMA command'); console.writestringln('AHCI: Sending write DMA command');
reset_port(device^.port); reset_port(device^.port);
start_port(device^.port);
//prdt count is 22 bits //prdt count is 22 bits
prdt_count := (count div 4194304) + 1; prdt_count := (count div 4194304) + 1;
@ -688,6 +726,8 @@ begin
fis^.command := ATA_CMD_WRITE_DMA_EXT; fis^.command := ATA_CMD_WRITE_DMA_EXT;
fis^.device := $40; // LBA mode 48? fis^.device := $40; // LBA mode 48?
count:= count div 512;
fis^.lba0 := lba and $FF; fis^.lba0 := lba and $FF;
fis^.lba1 := ( fis^.lba1 := (
lba shr 8) and $FF; lba shr 8) and $FF;
@ -764,7 +804,6 @@ begin
console.writestringln('AHCI: Sending read ATAPI command'); console.writestringln('AHCI: Sending read ATAPI command');
reset_port(device^.port); reset_port(device^.port);
start_port(device^.port);
//prdt count is 22 bits //prdt count is 22 bits
prdt_count := (count div 4194304) + 1; prdt_count := (count div 4194304) + 1;
@ -781,12 +820,13 @@ begin
cmd_header^.wrt := 0; cmd_header^.wrt := 0;
cmd_header^.prdtl := 1; cmd_header^.prdtl := 1;
cmd_header^.atapi := 1; cmd_header^.atapi := 1;
cmd_header^.clear_busy := 1;
// Setup the command table (using slot 0) // Setup the command table (using slot 0)
cmd_table := PHBA_CMD_TABLE(uint32(device^.command_table) + (slot * sizeof(THBA_CMD_TABLE))); cmd_table := PHBA_CMD_TABLE(uint32(device^.command_table) + (slot * sizeof(THBA_CMD_TABLE)));
cmd_table^.prdt[0].dba := vtop(uint32(buffer)); cmd_table^.prdt[0].dba := vtop(uint32(buffer));
cmd_table^.prdt[0].dbc := 512 - 1; // 512 bytes (0-based count cmd_table^.prdt[0].dbc := 2048 - 1; // 512 bytes (0-based count
cmd_table^.prdt[0].int := 1; // Interrupt on completion cmd_table^.prdt[0].int := 1; // Interrupt on completion
// Construct the Command FIS in the command table's CFIS area // Construct the Command FIS in the command table's CFIS area
@ -795,7 +835,7 @@ begin
fis^.fis_type := uint8(FIS_TYPE_REG_H2D); fis^.fis_type := uint8(FIS_TYPE_REG_H2D);
fis^.c := $1; fis^.c := $1;
fis^.command := ATA_CMD_PACKET; fis^.command := ATA_CMD_PACKET;
fis^.device := $A0; // LBA mode 48? fis^.device := $A0;
fis^.featurel := fis^.featurel or 1; //setting both of these might not work on real hardware fis^.featurel := fis^.featurel or 1; //setting both of these might not work on real hardware
fis^.featurel := fis^.featurel or (1 shl 2); fis^.featurel := fis^.featurel or (1 shl 2);

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@ -1,296 +0,0 @@
// // Copyright 2021 Aaron Hance
// //
// // Licensed under the Apache License, Version 2.0 (the "License");
// // you may not use this file except in compliance with the License.
// // You may obtain a copy of the License at
// //
// // http://www.apache.org/licenses/LICENSE-2.0
// //
// // Unless required by applicable law or agreed to in writing, software
// // distributed under the License is distributed on an "AS IS" BASIS,
// // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// // See the License for the specific language governing permissions and
// // limitations under the License.
// {
// Drivers->Storage->AHCI - AHCI SATA Driver.
// @author(Aaron Hance <ah@aaronhance.me>)
// }
// unit AHCI;
// interface
// uses
// util,
// PCI,
// drivertypes,
// drivermanagement,
// lmemorymanager,
// console,
// vmemorymanager;
// type
// //Struct hell
// TFIS_Type = (
// REG_H2D = $27,
// REG_D2H = $34,
// DMA_ACT = $39,
// DMA_SETUP = $41,
// DATA = $46,
// BIST = $58,
// PIO_SETUP = $5F,
// DEV_BITS = $A0
// );
// PFIS_REG_H2D = ^TFIS_REG_H2D;
// TFIS_REG_H2D = bitpacked record
// fis_type : uint8;
// port_mult : UBit4;
// rsv0 : UBit3;
// coc : boolean;
// command : uint8;
// feature_low : uint8;
// lba0 : uint8;
// lba1 : uint8;
// lba2 : uint8;
// device : uint8;
// lba3 : uint8;
// lba4 : uint8;
// lba5 : uint8;
// feature_high : uint8;
// count_low : uint8;
// count_high : uint8;
// icc : uint8;
// control : uint8;
// rsvl : uint32;
// end;
// TFIS_REG_D2H = bitpacked record
// fis_type : uint8;
// port_mult : UBit4;
// rsv0 : UBit2;
// i : boolean;
// rsvl : boolean;
// status : uint8;
// error : uint8;
// lba0 : uint8;
// lba1 : uint8;
// lba2 : uint8;
// device : uint8;
// lba3 : uint8;
// lba4 : uint8;
// lba5 : uint8;
// rsv2 : uint8;
// count_low : uint8;
// count_high : uint8;
// rsv3 : uint16;
// rsv4 : uint32;
// end;
// TFIS_Data = bitpacked record
// fis_type : uint8;
// port_mult : UBit4;
// rsv0 : UBit4;
// rsv1 : uint16;
// data : ^uint32;
// end;
// TFIS_PIO_Setup = bitpacked record
// fis_type : uint8;
// pmport : UBit4;
// rsv0 : boolean;
// d : boolean;
// i : boolean;
// rsv1 : boolean;
// status : uint8;
// error : uint8;
// lba0 : uint8;
// lba1 : uint8;
// lba2 : uint8;
// device : uint8;
// lba3 : uint8;
// lba4 : uint8;
// lba5 : uint8;
// rsv2 : uint8;
// countl : uint8;
// counth : uint8;
// rsv3 : uint8;
// e_status : uint8;
// tc : uint16;
// rsv4 : uint16;
// end;
// // TFIS_DMA_Setup = bitpacked record
// // end;
// // THBA_Memory = bitpacked record
// // end;
// // THBA_Port = bitpacked record
// // end;
// // THBA_FIS = bitpacked record
// // end;
// PHBA_PORT = ^THBA_PORT;
// THBA_PORT = bitpacked record
// clb : uint32;
// clbu : uint32;
// fb : uint32;
// fbu : uint32;
// istat : uint32;
// ie : uint32;
// cmd : uint32;
// rsv0 : uint32;
// tfd : uint32;
// sig : uint32;
// ssts : uint32;
// sctl : uint32;
// serr : uint32;
// sact : uint32;
// ci : uint32;
// sntf : uint32;
// fbs : uint32;
// rsv1 : array[0..11] of uint32;
// vendor : array[0..4] of uint32;
// end;
// THBA_MEM = bitpacked record
// cap : uint32; //0
// global_host_control : uint32; //4
// interrupt_status : uint32; //8
// port_implemented : uint32; //c
// version : uint32; //10
// ccc_control : uint32; //14
// ccc_ports : uint32; //18
// em_location : uint32; //1c
// em_Control : uint32; //20
// hcap2 : uint32; //24
// bohc : uint32; //28
// rsv0 : array[0..210] of boolean;
// ports : array[0..31] of THBA_Port;
// end;
// PHBA = ^THBA_MEM;
// PCMDHeader = ^ TCommand_Header;
// TCommand_Header = bitpacked record
// cfl : ubit5;
// a : boolean;
// w : boolean;
// p : boolean;
// r : boolean;
// b : boolean;
// c : boolean;
// rsv0 : boolean;
// pmp : ubit4;
// PRDTL : uint16;
// PRDTBC : uint32;
// CTBA : uint32;
// CTBAU : uint32;
// rsv1 : array[0..3] of uint32;
// end;
// TPRD_Entry = bitpacked record
// data_base_address : uint32;
// data_bade_address_U : uint32;
// rsv0 : uint32;
// data_byte_count : ubit22;
// rsv1 : ubit9;
// interrupt_oc : boolean;
// end;
// PCommand_Table = ^TCommand_Table;
// TCommand_Table = bitpacked record
// cfis : array[0..64] of uint8;
// acmd : array[0..16] of uint8;
// rsv : array[0..48] of uint8;
// prdt : array[0..7] of TPRD_Entry;
// end;
// TSataDevice = record
// controller : uint8;
// port : uint8;
// end;
// var
// //constants
// //SATA_SIG_ATA := $101;
// //SATA_SIG_ATAPI := $EB140101;
// //STA_SIG_SEMB := $C33C0101;
// //STAT_SIG_PM := $96690101;
// AHCI_BASE: uint32 = $400000; //irrelivent
// //other
// ahciControllers : array[0.16] of PuInt32;
// ahciControllerCount : uint8 = 0;
// hba : array[0..16] of PHBA;
// sataDevices : array[0..127] of TSataDevice;
// sataDeviceCount : uint8;
// procedure init();
// procedure check_ports(controller : uint8);
// procedure enable_cmd(port : uint8);
// procedure disable_cmd(port : uint8);
// procedure port_rebase(port : uint8);
// function load(ptr:void): boolean;
// function read(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
// function write(port : uint8; startl : uint32; starth : uint32; count : uint32; buf : PuInt32) : boolean;
// function find_cmd_slot(port : uint8) : uint32;
// implementation
// procedure init();
// var
// devID : TDeviceIdentifier;
// begin
// console.writestringln('AHCI: Registering driver');
// devID.bus:= biPCI;
// devID.id0:= idANY;
// devID.id1:= $00000001;
// devID.id2:= $00000006;
// devID.id3:= $00000001;
// devID.id4:= idANY;
// devID.ex:= nil;
// drivermanagement.register_driver('AHCI Driver', @devID, @load);
// end;
// procedure load(ptr : void);
// begin
// console.writestringln('AHCI: initilizing a new controller');
// ahciControllers[ahciControllerCount] := ptr;
// hba[ahciControllerCount] := PPCI_Device(ptr)^.address5;
// new_page_at_address(hba[ahciControllerCount]);
// //here would be any controller setup needed
// check_ports(ahciControllerCount);
// ahciControllerCount += 1;
// exit(true);
// end;
// procedure check_ports(controller : uint8);
// var
// d : uint32 = 1;
// i : uint32;
// begin
// for i:=0 to 31 do begin
// if (d > 0) and (hba[controller]^.port_implemented shr i) = 1 then begin
// if (hba[controller]^.ports[i].ssts shr 8) <> 1 and (hba[controller]^.ports[i].ssts and $0F) <> 3 then begin
// if hba[controller]^.ports[i].sig = 1 then begin
// //device is sata
// sataDevices[sataDeviceCount].controller := controller;
// sataDevices[sataDeviceCount].port := i;
// sataDeviceCount += 1;
// end;
// //TODO implement ATAPI
// end;
// end;
// end;
// end;

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@ -1,85 +0,0 @@
// Copyright 2021 Aaron Hance
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
{
Drivers->Storage->ATA_ISR - Primary ATA IRQ.
@author(Aaron Hance <ah@aaronhance.me>)
}
unit ATA_ISR;
interface
uses
util,
console,
isr_types,
isrmanager,
IDT;
procedure register();
procedure hook(hook_method : uint32);
procedure unhook(hook_method : uint32);
implementation
var
Hooks : Array[1..MAX_HOOKS] of pp_hook_method;
procedure Main(); interrupt;
var
i : integer;
begin
CLI;
for i:=0 to MAX_HOOKS-1 do begin
if uint32(Hooks[i]) <> 0 then Hooks[i](void($00000000));
end;
console.writestringln('Disk Operation Complete');
end;
procedure register();
begin
memset(uint32(@Hooks[0]), 0, sizeof(pp_hook_method)*MAX_HOOKS);
//isrmanager.registerISR(76, @Main);
//IDT.set_gate(76, uint32(@Main), $08, ISR_RING_0);
end;
procedure hook(hook_method : uint32);
var
i : uint32;
begin
for i:=0 to MAX_HOOKS-1 do begin
if uint32(Hooks[i]) = hook_method then exit;
end;
for i:=0 to MAX_HOOKS-1 do begin
if uint32(Hooks[i]) = 0 then begin
Hooks[i]:= pp_hook_method(hook_method);
exit;
end;
end;
end;
procedure unhook(hook_method : uint32);
var
i : uint32;
begin
for i:=0 to MAX_HOOKS-1 do begin
If uint32(Hooks[i]) = hook_method then Hooks[i]:= nil;
exit;
end;
end;
end.

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@ -15,6 +15,8 @@
{ {
Drivers->Storage->ide - IDE Driver. Drivers->Storage->ide - IDE Driver.
NOT FINSIHED NEEDS WORK
@author(Aaron Hance <ah@aaronhance.me>) @author(Aaron Hance <ah@aaronhance.me>)
} }
unit ide; unit ide;

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@ -1,3 +1,27 @@
// Copyright 2021 Aaron Hance
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
{
Drivers->Storage->ATAPI - ATAPI Driver.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!! CURRENTLY NOT FUNCTIONAL !!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
@author(Aaron Hance <ah@aaronhance.me>)
}
unit atapi; unit atapi;
interface interface

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@ -1,504 +0,0 @@
{ ************************************************
* Asuro
* Unit: Drivers/storage/IDE
* Description: IDE ATA Driver
*
************************************************
* Author: Aaron Hance
* Contributors:
************************************************ }
unit IDE;
interface
uses
util,
drivertypes,
console,
terminal,
drivermanagement,
vmemorymanager,
lmemorymanager,
storagemanagement,
strings,
tracer,
drivemanager,
storagetypes;
type
TPortMode = (P_READ, P_WRITE);
TIdentResponse = array[0..255] of uint16;
TIDE_Channel_Registers = record
base : uint16;
ctrl : uint16;
bmide : uint16;
noInter : uint8
end;
TIDE_Device = record
exists : boolean;
isPrimary : boolean;
isMaster : boolean;
isATAPI : boolean;
info : TIdentResponse;
end;
TIDE_Status = bitpacked record
Busy : Boolean;
Ready : Boolean;
Fault : Boolean;
Seek : Boolean;
DRQ : Boolean;
CORR : Boolean;
IDDEX : Boolean;
ERROR : Boolean;
end;
PIDE_Status = ^TIDE_Status;
const
ATA_SR_BUSY = $80; //BUSY
ATA_SR_DRDY = $40; //DRIVE READY
ATA_SR_DF = $20; //DRIVE WRITE FAULT
ATA_SR_DSC = $10; //DRIVE SEEK COMPLETE
ATA_SR_DRQ = $08; //DATA REQUEST READY
ATA_SR_CORR = $04; //CORRECTED DATA
ATA_SR_IDX = $02; //INLEX
ATA_SR_ERR = $01; //ERROR
ATA_ER_BBK = $80; //BAD SECTOR
ATA_ER_UNC = $40; //UNCORRECTABLE DATA
ATA_ER_MC = $20; //NO MEDIA
ATA_ER_IDNF = $10; //ID MARK NOT FOUND
ATA_ER_MCR = $08; //NO MEDIA
ATA_ER_ABRT = $04; //COMMAND ABORTED
ATA_ER_TK0NF = $02; //TRACK 0 NOT FOUND
ATA_ER_AMNF = $01; //NO ADDRESS MARK
ATA_CMD_READ_PIO = $20;
ATA_CMD_READ_PIO_EXT = $24;
ATA_CMD_READ_DMA = $C8;
ATA_CMD_READ_DMA_EXT = $25;
ATA_CMD_WRITE_PIO = $30;
ATA_CMD_WRITE_PIO_EXT = $34;
ATA_CMD_WRITE_DMA = $CA;
ATA_CMD_WRITE_DMA_EXT = $35;
ATA_CMD_CACHE_FLUSH = $E7;
ATA_CMD_CACHE_FLUSH_EXT = $EA;
ATA_CMD_PACKET = $A0;
ATA_CMD_IDENTIFY_PACKET = $A1;
ATA_CMD_IDENTIFY = $EC;
ATAPI_CMD_READ = $A8;
ATAPI_CMD_EJECT = $1B;
ATA_IDENT_DEVICETYPE = $0;
ATA_IDENT_CYLINDERS = $2;
ATA_IDENT_HEADS = $6;
ATA_IDENT_SECOTRS = $12;
ATA_IDENT_SERIAL = $20;
ATA_IDENT_MODEL = $54;
ATA_IDENT_CAPABILITIES = $98;
ATA_IDENT_FIELDVALID = $106;
ATA_IDENT_MAX_LBA = $120;
ATA_IDENT_COMMANDSETS = $164;
ATA_IDENT_MAX_LBA_EXT = $200;
ATA_REG_DATA = $00;
ATA_REG_ERROR = $01;
ATA_REG_FEATURES = $01;
ATA_REG_SECCOUNT = $02;
ATA_REG_LBA0 = $03;
ATA_REG_LBA1 = $04;
ATA_REG_LBA2 = $05;
ATA_REG_HDDEVSEL = $06;
ATA_REG_COMMAND = $07;
ATA_REG_STATUS = $07;
ATA_REG_SECCOUNT1 = $08;
ATA_REG_LBA3 = $09;
ATA_REG_LBA4 = $0A;
ATA_REG_LBA5 = $0B;
ATA_REG_CONTROL = $0C;
ATA_REG_ALTSTATUS = $0C;
ATA_REG_DEVADDRESS = $0D;
ATA_DEVICE_MASTER = $A0;
ATA_DEVICE_SLAVE = $B0;
ATA_PRIMARY_BASE = $1F0;
var
controller : PPCI_Device;
bar0 : uint32;
bar1 : uint32;
bar4 : uint32;
IDEDevices : array[0..3] of TIDE_Device;
buffer : Puint32;
procedure init();
function load(ptr : void) : boolean;
function identify_device(bus : uint8; device : uint8) : TIdentResponse;
// procedure flush();
procedure readPIO28(drive : uint8; LBA : uint32; buffer : puint8);
procedure writePIO28(drive : uint8; LBA : uint32; buffer : puint8);
//read/write must be capable of reading/writting any amknt of data upto disk size
procedure dread(device : PStorage_device; LBA : uint32; sectorCount : uint32; buffer : puint32);
procedure dwrite(device : PStorage_device; LBA : uint32; sectorCount : uint32; buffer : puint32);
implementation
function port_read(register : uint8) : uint8;
begin
port_read:= inb(ATA_PRIMARY_BASE + register);
end;
procedure port_write(register : uint8; data : uint8);
var
i : uint8;
begin
outb(ATA_PRIMARY_BASE + register, data);
util.psleep(1);
if register = ATA_REG_COMMAND then begin
for i:= 0 to 5 do begin
port_read(ATA_REG_STATUS);
end;
end;
end;
procedure no_interrupt(device : uint8);
begin
outb($3F6, inb($3f6) or (1 shl 1));
end;
procedure device_select(device : uint8);
begin
outb($1F6, device); //TODO clean
end;
function is_ready() : boolean;
var
status : uint8;
i : uint32;
begin
//wait for drive to be ready
while true do begin
status := port_read(ATA_REG_COMMAND);
if(status and ATA_SR_ERR) = ATA_SR_ERR then begin
console.writestringln('[IDE] (IDENTIFY_DEVICE) DRIVE ERROR!');
console.redrawWindows();
is_ready := false;
break;
end;
if (status and ATA_SR_BUSY) <> ATA_SR_BUSY then begin
is_ready := true;
break;
end;
end;
end;
function validate_28bit_address(addr : uint32) : boolean;
begin
validate_28bit_address := (addr and $F0000000) = 0;
end;
function identify_device(bus : uint8; device : uint8) : TIdentResponse;
var
status : uint8;
identResponse : TIdentResponse;
i : uint8;
begin
push_trace('IDE.Identify_Device');
device_select(device);
no_interrupt(device);
port_write(ATA_REG_CONTROL, 0);
console.writestringln('[IDE] (IDENTIFY_DEVICE) CHECK FLOATING BUS');
//check if bus is floating
status := port_read(ATA_REG_COMMAND);
if status = $FF then exit;
port_write(ATA_REG_SECCOUNT, 0);
port_write(ATA_REG_LBA0, 0);
port_write(ATA_REG_LBA1, 0);
port_write(ATA_REG_LBA2, 0);
console.writestringln('[IDE] (IDENTIFY_DEVICE) SEND IDENTIFY COMMAND');
port_write(ATA_REG_COMMAND, ATA_CMD_IDENTIFY);
console.writestringln('[IDE] (IDENTIFY_DEVICE) WAIT FOR DRIVE TO BE READY');
//check if drive is present
status := port_read(ATA_REG_COMMAND);
if status = $00 then exit;
console.writestringln('[IDE] (IDENTIFY_DEVICE) WAIT FOR DRIVE TO BE READY');
if not is_ready() then exit;
console.writestringln('[IDE] (IDENTIFY_DEVICE) READ IDENTIFY RESPONSE');
for i:=0 to 255 do begin
console.writeint(i);
identResponse[i] := inw(ATA_PRIMARY_BASE + ATA_REG_DATA);
end;
console.writestringln('[IDE] (IDENTIFY_DEVICE) IDENTIFY RESPONSE RECEIVED');
identify_device := identResponse;
end;
procedure init();
var
devID : TDeviceIdentifier;
begin
push_trace('ide.init');
console.writestringln('[IDE] (INIT) BEGIN');
devID.bus:= biPCI;
devID.id0:= idANY;
devID.id1:= $00000001;
devID.id2:= $00000001;
devID.id3:= idANY;
devID.id4:= idANY;
devID.ex:= nil;
drivermanagement.register_driver('IDE ATA Driver', @devID, @load);
console.writestringln('[IDE] (INIT) END');
end;
function load(ptr : void) : boolean;
var
controller : PPCI_Device;
masterDevice : TStorage_Device;
slaveDevice : TStorage_Device;
buffer : puint8;
i : uint8;
test : PStorage_device;
tbuf : puint8;
begin
push_trace('ide.load');
console.writestringln('[IDE] (LOAD) BEGIN');
controller := PPCI_Device(ptr);
console.writestringln('[IDE] (INIT) CHECK FLOATING BUS');
//check if bus is floating and identify device
if inb($1F7) <> $FF then begin
//outb($3F6, inb($3f6) or (1 shl 1)); // disable interrupts
IDEDevices[0].isMaster:= true;
IDEDevices[0].info := identify_device(0, ATA_DEVICE_MASTER);
e
mastrDevice.controller := ControllerIDE;
masterDevice.controllerId0:= 0;
masterDevice.maxSectorCount:= (IDEDevices[0].info[60] or (IDEDevices[0].info[61] shl 16) ); //LBA28 SATA
if IDEDevices[0].info[1] = 0 then begin
console.writestringln('[IDE] (INIT) ERROR: DEVICE IDENT FAILED!');
exit;
end;
// masterDevice.hpc:= uint32(IDEDevices[0].info[3] DIV IDEDevices[0].info[1]); //TODO wtf is hpc
masterDevice.sectorSize:= 512;
if masterDevice.maxSectorCount <> 0 then begin
IDEDevices[0].exists:= true;
masterDevice.readCallback:= @dread;
masterDevice.writeCallback:= @dwrite;
// storagemanagement.register_device(@masterDevice);
drivemanager.register_device(@masterDevice);
end;
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);
// writePIO28(0, 3, buffer);
// writePIO28(0, 3, buffer);
// writePIO28(0, 4, buffer);
// writePIO28(0, 5, buffer);
// writePIO28(0, 5, buffer);
// writePIO28(0, 5, buffer);
// psleep(1000);
// writePIO28(0, 5, buffer);
// writePIO28(0, 5, buffer);
// writePIO28(0, 5, buffer);
// kfree(puint32(buffer));
console.writestringln('[IDE] (LOAD) END');
//read first 16 bytes of disk
tbuf:= puint8(kalloc(512));
//set buffer to 1F1F repeating
for i:=0 to 200 do begin
tbuf[i] := 31;
end;
//write buffer to disk
writePIO28(0, 0, tbuf);
memset(uint32(tbuf), 0, 512);
readPIO28(0, 0, puint8(tbuf));
console.writestringln('[IDE] (INIT) READ FIRST 4 BYTES OF DISK');
console.writehexln(tbuf[0]);
console.writehexln(tbuf[1]);
console.writehexln(tbuf[2]);
console.writehexln(tbuf[3]);
kfree(puint32(tbuf));
end;
procedure readPIO28(drive : uint8; LBA : uint32; buffer : puint8);
var
status : uint8;
i: uint16;
device: uint8;
data: uint16;
begin
push_trace('IDE.readPIO28');
if not validate_28bit_address(LBA) then begin
console.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
end;
// push_trace('IDE.readPIO28.2');
//Add last 4 bits of LBA to device port
if IDEDevices[drive].isMaster then begin
device:= ATA_DEVICE_MASTER;
device_select($E0 or ((LBA and $0F000000) shr 24)); //LBA primary master
end
else begin
device:= ATA_DEVICE_SLAVE;
device_select($F0 or ((LBA and $0F000000) shr 24)); //LBA primary slave
end;
// push_trace('IDE.readPIO28.3');
no_interrupt(device);
port_write(ATA_REG_ERROR, 0);
//Write sector count and LBA
port_write(ATA_REG_SECCOUNT, 1);
port_write(ATA_REG_LBA0, (LBA and $000000FF));
port_write(ATA_REG_LBA1, (LBA and $0000FF00) shr 8);
port_write(ATA_REG_LBA2, (LBA and $00FF0000) shr 16);
// push_trace('IDE.readPIO28.4');
//send read command
port_write(ATA_REG_COMMAND, ATA_CMD_READ_PIO);
if not is_ready() then exit;
i:=0;
while i < 512 do begin
// if not is_ready() then exit;
data:= inw(ATA_PRIMARY_BASE + ATA_REG_DATA);
buffer[i+1] := uint8($00ff and (data shr 8));
buffer[i] := uint8($00ff and data);
i:= i + 2;
if not is_ready() then exit;
end;
// push_trace('IDE.readPIO28.5');
end;
procedure writePIO28(drive : uint8; LBA : uint32; buffer : puint8);
var
status : uint8;
i: uint16;
device: uint8;
begin
push_trace('IDE.WritePIO28');
if not validate_28bit_address(LBA) then begin
console.writestringln('IDE (writePIO28) ERROR: Invalid LBA!');
end;
console.writeintln(uint32(drive));
console.writeintln(LBA);
//Add last 4 bits of LBA to device port
if IDEDevices[drive].isMaster then begin
device:= ATA_DEVICE_MASTER;
device_select($E0 or ((LBA and $0F000000) shr 24)); //LBA primary master
end
else begin
device:= ATA_DEVICE_SLAVE;
device_select($F0 or ((LBA and $0F000000) shr 24)); //LBA primary slave
end;
// no_interrupt(device);
port_write(ATA_REG_ERROR, 0);
port_write(ATA_REG_CONTROL, 0);
// check if bus is floating
status := port_read(ATA_REG_COMMAND);
if status = $FF then exit;
//Write sector count and LBA
port_write(ATA_REG_SECCOUNT, 1);
port_write(ATA_REG_LBA0, (LBA and $000000FF));
port_write(ATA_REG_LBA1, (LBA and $0000FF00) shr 8);
port_write(ATA_REG_LBA2, (LBA and $00FF0000) shr 16);
//send write command
port_write(ATA_REG_COMMAND, ATA_CMD_WRITE_PIO);
//write data
i:=0;
while i < 512 do begin
outw(ATA_PRIMARY_BASE + ATA_REG_DATA, uint16(buffer[i] or (buffer[i+1] shl 8)));
i:= i + 2;
end;
//flush drive cache
psleep(1);
port_write(ATA_REG_COMMAND, ATA_CMD_CACHE_FLUSH);
psleep(1);
if not is_ready() then exit;
end;
procedure dread(device : PStorage_device; LBA : uint32; sectorCount : uint32; buffer : Puint32);
var
i : uint16;
begin
push_trace('IDE.dread');
for i:=0 to sectorCount-1 do begin
readPIO28(device^.controllerId0, LBA + i, puint8(@buffer[512*i]));
psleep(100)
end;
end;
procedure dwrite(device : PStorage_device; LBA : uint32; sectorCount : uint32; buffer : Puint32);
var
i : uint16;
begin
for i:=0 to sectorCount-1 do begin
writePIO28(device^.controllerId0, LBA + i, puint8(@buffer[512*i]));
psleep(100)
end;
// writePIO28(device^.controllerId0, LBA, puint8(buffer));
end;
end.