mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 10:04:49 +00:00
Added write-ability for ATA devices (harddisks).
svn path=/trunk/; revision=2713
This commit is contained in:
Eric Kohl
parent
2c92fa8738
commit
70bf7d3e28
2 changed files with 123 additions and 103 deletions
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: atapi.c,v 1.11 2002/03/08 11:58:23 ekohl Exp $
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/* $Id: atapi.c,v 1.12 2002/03/15 16:34:52 ekohl Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS ATAPI miniport driver
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@ -163,12 +163,12 @@ AtapiIdentifyDevice(IN ULONG CommandPort,
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OUT PIDE_DRIVE_IDENTIFY DrvParms);
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static BOOLEAN
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IDEResetController(IN WORD CommandPort,
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IN WORD ControlPort);
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IDEResetController(IN ULONG CommandPort,
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IN ULONG ControlPort);
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static int
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AtapiPolledRead(IN WORD CommandPort,
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IN WORD ControlPort,
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AtapiPolledRead(IN ULONG CommandPort,
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IN ULONG ControlPort,
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IN BYTE PreComp,
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IN BYTE SectorCnt,
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IN BYTE SectorNum,
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@ -594,12 +594,12 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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ULONG ControlPortBase;
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UCHAR DeviceStatus;
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BOOLEAN IsLastBlock, AnErrorOccured, RequestIsComplete;
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BOOLEAN IsLastBlock;
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ULONG Retries;
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NTSTATUS ErrorStatus;
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ULONG ErrorInformation;
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PUCHAR TargetAddress;
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ULONG SectorSize;
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DPRINT("AtapiInterrupt() called!\n");
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@ -619,10 +619,7 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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DPRINT("CommandPortBase: %lx ControlPortBase: %lx\n", CommandPortBase, ControlPortBase);
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IsLastBlock = FALSE;
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AnErrorOccured = FALSE;
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RequestIsComplete = FALSE;
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ErrorStatus = STATUS_SUCCESS;
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ErrorInformation = 0;
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@ -643,7 +640,7 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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SectorNum = IDEReadSectorNum(CommandPortBase);
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/* FIXME: should use the NT error logging facility */
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DbgPrint("ATAPT Error: OP:%02x STAT:%02x ERR:%02x CYLLO:%02x CYLHI:%02x SCNT:%02x SNUM:%02x\n",
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DbgPrint("ATAPI Error: OP:%02x STAT:%02x ERR:%02x CYLLO:%02x CYLHI:%02x SCNT:%02x SNUM:%02x\n",
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0, //DeviceExtension->Operation,
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DeviceStatus,
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ErrorReg,
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@ -655,7 +652,6 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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/* FIXME: should retry the command and perhaps recalibrate the drive */
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// Set error status information
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AnErrorOccured = TRUE;
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ErrorStatus = STATUS_DISK_OPERATION_FAILED;
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#if 0
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ErrorInformation =
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@ -674,10 +670,10 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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DPRINT("SCSIOP_READ\n");
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/* Update controller/device state variables */
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SectorSize = DevExt->DeviceParams[Srb->TargetId].BytesPerSector;
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TargetAddress = Srb->DataBuffer;
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Srb->DataBuffer += DevExt->DeviceParams[Srb->TargetId].BytesPerSector;
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Srb->DataTransferLength -= DevExt->DeviceParams[Srb->TargetId].BytesPerSector;
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// DevExt->SectorsTransferred++;
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Srb->DataBuffer += SectorSize;
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Srb->DataTransferLength -= SectorSize;
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/* Remember whether DRQ should be low at end (last block read) */
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IsLastBlock = (Srb->DataTransferLength == 0);
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@ -694,7 +690,7 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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/* Copy the block of data */
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IDEReadBlock(CommandPortBase,
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TargetAddress,
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IDE_SECTOR_BUF_SZ);
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SectorSize);
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/* check DRQ */
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if (IsLastBlock)
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@ -709,71 +705,51 @@ AtapiInterrupt(IN PVOID DeviceExtension)
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/* Check for data overrun */
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if (IDEReadStatus(CommandPortBase) & IDE_SR_DRQ)
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{
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AnErrorOccured = TRUE;
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ErrorStatus = STATUS_DATA_OVERRUN;
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ErrorInformation = 0;
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}
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else
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{
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#if 0
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// Setup next transfer or set RequestIsComplete
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if (DeviceExtension->BytesRequested >
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DeviceExtension->BytesPerSector * IDE_MAX_SECTORS_PER_XFER)
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{
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DeviceExtension->StartingSector += DeviceExtension->SectorsTransferred;
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DeviceExtension->SectorsTransferred = 0;
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DeviceExtension->BytesToTransfer =
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DeviceExtension->BytesPerSector * IDE_MAX_SECTORS_PER_XFER;
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DeviceExtension->BytesRequested -= DeviceExtension->BytesToTransfer;
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}
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else if (DeviceExtension->BytesRequested > 0)
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{
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DeviceExtension->StartingSector += DeviceExtension->SectorsTransferred;
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DeviceExtension->SectorsTransferred = 0;
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DeviceExtension->BytesToTransfer = DeviceExtension->BytesRequested;
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DeviceExtension->BytesRequested -= DeviceExtension->BytesToTransfer;
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}
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else
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{
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RequestIsComplete = TRUE;
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}
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#endif
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RequestIsComplete = TRUE;
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/* FIXME: Handle error! */
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}
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}
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break;
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case SCSIOP_WRITE:
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DPRINT1("AtapiInterrupt(): SCSIOP_WRITE not implemented yet!\n");
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RequestIsComplete = TRUE;
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DPRINT("SCSIOP_WRITE\n");
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if (Srb->DataTransferLength == 0)
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{
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for (Retries = 0; Retries < IDE_MAX_BUSY_RETRIES &&
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(IDEReadStatus(CommandPortBase) & IDE_SR_BUSY);
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Retries++)
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{
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KeStallExecutionProcessor(10);
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}
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/* Check for data overrun */
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if (IDEReadStatus(CommandPortBase) & IDE_SR_DRQ)
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{
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/* FIXME: Handle error! */
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}
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DevExt->ExpectingInterrupt = FALSE;
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IsLastBlock = TRUE;
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}
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else
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{
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/* Update SRB data */
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SectorSize = DevExt->DeviceParams[Srb->TargetId].BytesPerSector;
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TargetAddress = Srb->DataBuffer;
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Srb->DataBuffer += SectorSize;
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Srb->DataTransferLength -= SectorSize;
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/* Write the sector */
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IDEWriteBlock(CommandPortBase,
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TargetAddress,
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SectorSize);
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}
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break;
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}
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}
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/* If there was an error or the request is done, complete the packet */
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if (AnErrorOccured || RequestIsComplete)
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{
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#if 0
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/* Set the return status and info values */
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Irp = ControllerExtension->CurrentIrp;
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Irp->IoStatus.Status = ErrorStatus;
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Irp->IoStatus.Information = ErrorInformation;
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/* Clear out controller fields */
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ControllerExtension->OperationInProgress = FALSE;
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ControllerExtension->DeviceStatus = 0;
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/* Queue the Dpc to finish up */
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IoRequestDpc(DeviceExtension->DeviceObject,
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Irp,
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ControllerExtension);
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#endif
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}
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/* complete this packet */
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if (IsLastBlock)
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{
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DevExt->ExpectingInterrupt = FALSE;
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@ -855,11 +831,7 @@ AtapiFindDevices(PATAPI_MINIPORT_EXTENSION DeviceExtension,
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ScsiPortStallExecution(500);
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IDEWriteCylinderHigh(CommandPortBase, 0);
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IDEWriteCylinderLow(CommandPortBase, 0);
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IDEWriteCommand(CommandPortBase, 0x08); /* IDE_COMMAND_ATAPI_RESET */
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// ScsiPortStallExecution(1000*1000);
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// IDEWriteDriveHead(CommandPortBase,
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// IDE_DH_FIXED | (UnitNumber ? IDE_DH_DRV1 : 0));
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// IDE_DH_FIXED);
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IDEWriteCommand(CommandPortBase, IDE_CMD_RESET);
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for (Retries = 0; Retries < 20000; Retries++)
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{
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@ -943,8 +915,8 @@ AtapiFindDevices(PATAPI_MINIPORT_EXTENSION DeviceExtension,
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//
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static BOOLEAN
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AtapiResetController(IN WORD CommandPort,
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IN WORD ControlPort)
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AtapiResetController(IN ULONG CommandPort,
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IN ULONG ControlPort)
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{
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int Retries;
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@ -1014,8 +986,8 @@ AtapiIdentifyDevice(IN ULONG CommandPort,
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OUT PIDE_DRIVE_IDENTIFY DrvParms)
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{
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/* Get the Drive Identify block from drive or die */
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if (AtapiPolledRead((WORD)CommandPort,
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(WORD)ControlPort,
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if (AtapiPolledRead(CommandPort,
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ControlPort,
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0,
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1,
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0,
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@ -1023,7 +995,7 @@ AtapiIdentifyDevice(IN ULONG CommandPort,
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0,
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(DriveNum ? IDE_DH_DRV1 : 0),
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(Atapi ? IDE_CMD_IDENT_ATAPI_DRV : IDE_CMD_IDENT_ATA_DRV),
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(BYTE *)DrvParms) != 0) /* atapi_identify */
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(BYTE *)DrvParms) != 0)
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{
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DPRINT1("IDEPolledRead() failed\n");
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return FALSE;
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@ -1097,8 +1069,8 @@ AtapiIdentifyDevice(IN ULONG CommandPort,
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//
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static int
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AtapiPolledRead(IN WORD Address,
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IN WORD ControlPort,
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AtapiPolledRead(IN ULONG CommandPort,
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IN ULONG ControlPort,
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IN BYTE PreComp,
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IN BYTE SectorCnt,
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IN BYTE SectorNum,
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@ -1121,7 +1093,7 @@ AtapiPolledRead(IN WORD Address,
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/* Wait for STATUS.BUSY and STATUS.DRQ to clear */
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for (RetryCount = 0; RetryCount < IDE_MAX_BUSY_RETRIES; RetryCount++)
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{
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Status = IDEReadStatus(Address);
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Status = IDEReadStatus(CommandPort);
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if (!(Status & IDE_SR_BUSY) && !(Status & IDE_SR_DRQ))
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{
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break;
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@ -1134,12 +1106,12 @@ AtapiPolledRead(IN WORD Address,
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}
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/* Write Drive/Head to select drive */
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IDEWriteDriveHead(Address, IDE_DH_FIXED | DrvHead);
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IDEWriteDriveHead(CommandPort, IDE_DH_FIXED | DrvHead);
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/* Wait for STATUS.BUSY and STATUS.DRQ to clear */
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for (RetryCount = 0; RetryCount < IDE_MAX_BUSY_RETRIES; RetryCount++)
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{
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Status = IDEReadStatus(Address);
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Status = IDEReadStatus(CommandPort);
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if (!(Status & IDE_SR_BUSY) && !(Status & IDE_SR_DRQ))
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{
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break;
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@ -1173,21 +1145,21 @@ AtapiPolledRead(IN WORD Address,
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}
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/* Setup command parameters */
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IDEWritePrecomp(Address, PreComp);
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IDEWriteSectorCount(Address, SectorCnt);
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IDEWriteSectorNum(Address, SectorNum);
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IDEWriteCylinderHigh(Address, CylinderHigh);
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IDEWriteCylinderLow(Address, CylinderLow);
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IDEWriteDriveHead(Address, IDE_DH_FIXED | DrvHead);
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IDEWritePrecomp(CommandPort, PreComp);
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IDEWriteSectorCount(CommandPort, SectorCnt);
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IDEWriteSectorNum(CommandPort, SectorNum);
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IDEWriteCylinderHigh(CommandPort, CylinderHigh);
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IDEWriteCylinderLow(CommandPort, CylinderLow);
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IDEWriteDriveHead(CommandPort, IDE_DH_FIXED | DrvHead);
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/* Issue the command */
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IDEWriteCommand(Address, Command);
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IDEWriteCommand(CommandPort, Command);
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ScsiPortStallExecution(50);
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/* wait for DRQ or error */
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for (RetryCount = 0; RetryCount < IDE_MAX_POLL_RETRIES; RetryCount++)
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{
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Status = IDEReadStatus(Address);
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Status = IDEReadStatus(CommandPort);
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if (!(Status & IDE_SR_BUSY))
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{
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if (Status & IDE_SR_ERR)
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@ -1220,20 +1192,20 @@ AtapiPolledRead(IN WORD Address,
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/* Read data into buffer */
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if (Junk == FALSE)
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{
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IDEReadBlock(Address, Buffer, IDE_SECTOR_BUF_SZ);
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IDEReadBlock(CommandPort, Buffer, IDE_SECTOR_BUF_SZ);
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Buffer += IDE_SECTOR_BUF_SZ;
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}
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else
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{
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UCHAR JunkBuffer[IDE_SECTOR_BUF_SZ];
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IDEReadBlock(Address, JunkBuffer, IDE_SECTOR_BUF_SZ);
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IDEReadBlock(CommandPort, JunkBuffer, IDE_SECTOR_BUF_SZ);
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}
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SectorCount++;
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/* Check for error or more sectors to read */
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for (RetryCount = 0; RetryCount < IDE_MAX_BUSY_RETRIES; RetryCount++)
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{
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Status = IDEReadStatus(Address);
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Status = IDEReadStatus(CommandPort);
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if (!(Status & IDE_SR_BUSY))
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{
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if (Status & IDE_SR_ERR)
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@ -1832,11 +1804,13 @@ AtapiReadWrite(PATAPI_MINIPORT_EXTENSION DeviceExtension,
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#endif
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}
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#if 0
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if (Command == IDE_CMD_WRITE)
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{
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DPRINT1("Write not implemented yet!\n");
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return(SRB_STATUS_SUCCESS);
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}
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#endif
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/* Indicate expecting an interrupt. */
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DeviceExtension->ExpectingInterrupt = TRUE;
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@ -1851,11 +1825,56 @@ AtapiReadWrite(PATAPI_MINIPORT_EXTENSION DeviceExtension,
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/* Issue command to drive */
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IDEWriteCommand(DeviceExtension->CommandPortBase, Command);
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// ControllerExtension->TimerState = IDETimerCmdWait;
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// ControllerExtension->TimerCount = IDE_CMD_TIMEOUT;
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/* Write data block */
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if (Command == IDE_CMD_WRITE)
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{
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PUCHAR TargetAddress;
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ULONG SectorSize;
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/* FIXME: Write data here! */
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/* Wait for controller ready */
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for (Retries = 0; Retries < IDE_MAX_WRITE_RETRIES; Retries++)
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{
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BYTE Status = IDEReadStatus(DeviceExtension->CommandPortBase);
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if (!(Status & IDE_SR_BUSY) || (Status & IDE_SR_ERR))
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{
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break;
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}
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KeStallExecutionProcessor(10);
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}
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if (Retries >= IDE_MAX_BUSY_RETRIES)
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{
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DPRINT("Drive is BUSY for too long after sending write command\n");
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return(SRB_STATUS_BUSY);
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#if 0
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if (DeviceExtension->Retries++ > IDE_MAX_CMD_RETRIES)
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{
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Irp = ControllerExtension->CurrentIrp;
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Irp->IoStatus.Status = STATUS_DISK_OPERATION_FAILED;
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Irp->IoStatus.Information = 0;
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return FALSE;
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}
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else
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{
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IDEBeginControllerReset(ControllerExtension);
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return TRUE;
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}
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#endif
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}
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/* Update SRB data */
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SectorSize = DeviceExtension->DeviceParams[Srb->TargetId].BytesPerSector;
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TargetAddress = Srb->DataBuffer;
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Srb->DataBuffer += SectorSize;
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Srb->DataTransferLength -= SectorSize;
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/* Write data block */
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IDEWriteBlock(DeviceExtension->CommandPortBase,
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TargetAddress,
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SectorSize);
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}
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DPRINT("AtapiReadWrite() done!\n");
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@ -61,6 +61,7 @@ extern "C" {
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#define IDE_SR_DRQ 0x08
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#define IDE_SR_ERR 0x01
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#define IDE_REG_COMMAND 0x0007
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#define IDE_CMD_RESET 0x08
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#define IDE_CMD_READ 0x20
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#define IDE_CMD_READ_RETRY 0x21
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#define IDE_CMD_WRITE 0x30
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