Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2915 insertions, 0 deletions

diff --git a/drivers/scsi/pci2220i.c b/drivers/scsi/pci2220i.c
new file mode 100644
index 000000000000..e395e4203154
--- /dev/null
+++ b/drivers/scsi/pci2220i.c
@@ -0,0 +1,2915 @@
+/****************************************************************************
+ * Perceptive Solutions, Inc. PCI-2220I device driver for Linux.
+ *
+ * pci2220i.c - Linux Host Driver for PCI-2220I EIDE RAID Adapters
+ *
+ * Copyright (c) 1997-1999 Perceptive Solutions, Inc.
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that redistributions of source
+ * code retain the above copyright notice and this comment without
+ * modification.
+ *
+ * Technical updates and product information at:
+ *  http://www.psidisk.com
+ *
+ * Please send questions, comments, bug reports to:
+ *  tech@psidisk.com Technical Support
+ *
+ *
+ *	Revisions 1.10		Mar-26-1999
+ *		- Updated driver for RAID and hot reconstruct support.
+ *
+ *	Revisions 1.11		Mar-26-1999
+ *		- Fixed spinlock and PCI configuration.
+ *
+ *	Revision 2.00		December-1-1999
+ *		- Added code for the PCI-2240I controller
+ *		- Added code for ATAPI devices.
+ *		- Double buffer for scatter/gather support
+ *
+ *	Revision 2.10		March-27-2000
+ *		- Added support for dynamic DMA
+ *
+ ****************************************************************************/
+
+#error Convert me to understand page+offset based scatterlists
+
+//#define DEBUG 1
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/blkdev.h>
+#include <linux/timer.h>
+#include <linux/spinlock.h>
+
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "pci2220i.h"
+#include "psi_dale.h"
+
+
+#define	PCI2220I_VERSION		"2.10"
+#define	READ_CMD				IDE_CMD_READ_MULTIPLE
+#define	WRITE_CMD				IDE_CMD_WRITE_MULTIPLE
+#define	MAX_BUS_MASTER_BLOCKS	SECTORSXFER		// This is the maximum we can bus master
+
+#ifdef DEBUG
+#define DEB(x) x
+#define STOP_HERE()	{int st;for(st=0;st<100;st++){st=1;}}
+#else
+#define DEB(x)
+#define STOP_HERE()
+#endif
+
+#define MAXADAPTER 4					// Increase this and the sizes of the arrays below, if you need more.
+
+
+typedef struct
+	{
+	UCHAR			byte6;				// device select register image
+	UCHAR			spigot;				// spigot number
+	UCHAR			spigots[2];			// RAID spigots
+	UCHAR			deviceID[2];		// device ID codes
+	USHORT			sectors;			// number of sectors per track
+	USHORT			heads;				// number of heads
+	USHORT			cylinders;			// number of cylinders for this device
+	USHORT			spareword;			// placeholder
+	ULONG			blocks;				// number of blocks on device
+	DISK_MIRROR		DiskMirror[2];		// RAID status and control
+	ULONG			lastsectorlba[2];	// last addressable sector on the drive
+	USHORT			raid;				// RAID active flag
+	USHORT			mirrorRecon;
+	UCHAR			reconOn;
+	USHORT			reconCount;
+	USHORT			reconIsStarting;	// indicate hot reconstruct is starting
+	UCHAR			cmdDrqInt;			// flag for command interrupt
+	UCHAR			packet;				// command packet size in bytes
+	}	OUR_DEVICE, *POUR_DEVICE;	
+
+typedef struct
+	{
+	USHORT		 bigD;					// identity is a PCI-2240I if true, otherwise a PCI-2220I
+	USHORT		 atapi;					// this interface is for ATAPI devices only
+	ULONG		 regDmaDesc;			// address of the DMA discriptor register for direction of transfer
+	ULONG		 regDmaCmdStat;			// Byte #1 of DMA command status register
+	ULONG		 regDmaAddrPci;			// 32 bit register for PCI address of DMA
+	ULONG		 regDmaAddrLoc;			// 32 bit register for local bus address of DMA
+	ULONG		 regDmaCount;			// 32 bit register for DMA transfer count
+	ULONG		 regDmaMode;			// 32 bit register for DMA mode control
+	ULONG		 regRemap;				// 32 bit local space remap
+	ULONG		 regDesc;				// 32 bit local region descriptor
+	ULONG		 regRange;				// 32 bit local range
+	ULONG		 regIrqControl;			// 16 bit Interrupt enable/disable and status
+	ULONG		 regScratchPad;			// scratch pad I/O base address
+	ULONG		 regBase;				// Base I/O register for data space
+	ULONG		 regData;				// data register I/O address
+	ULONG		 regError;				// error register I/O address
+	ULONG		 regSectCount;			// sector count register I/O address
+	ULONG		 regLba0;				// least significant byte of LBA
+	ULONG		 regLba8;				// next least significant byte of LBA
+	ULONG		 regLba16;				// next most significan byte of LBA
+	ULONG		 regLba24;				// head and most 4 significant bits of LBA
+	ULONG		 regStatCmd;			// status on read and command on write register
+	ULONG		 regStatSel;			// board status on read and spigot select on write register
+	ULONG		 regFail;				// fail bits control register
+	ULONG		 regAltStat;			// alternate status and drive control register
+	ULONG		 basePort;				// PLX base I/O port
+	USHORT		 timingMode;			// timing mode currently set for adapter
+	USHORT		 timingPIO;				// TRUE if PIO timing is active
+	struct pci_dev	*pcidev;
+	ULONG		 timingAddress;			// address to use on adapter for current timing mode
+	ULONG		 irqOwned;				// owned IRQ or zero if shared
+	UCHAR		 numberOfDrives;		// saved number of drives on this controller
+	UCHAR		 failRegister;			// current inverted data in fail register
+	OUR_DEVICE	 device[BIGD_MAXDRIVES];
+	DISK_MIRROR	*raidData[BIGD_MAXDRIVES];
+	ULONG		 startSector;
+	USHORT		 sectorCount;
+	ULONG		 readCount;
+	UCHAR		*currentSgBuffer;
+	ULONG		 currentSgCount;
+	USHORT		 nextSg;
+	UCHAR		 cmd;
+	Scsi_Cmnd	*SCpnt;
+	POUR_DEVICE	 pdev;					// current device opearating on
+	USHORT		 devInReconIndex;
+	USHORT		 expectingIRQ;
+	USHORT		 reconOn;				// Hot reconstruct is to be done.
+	USHORT		 reconPhase;			// Hot reconstruct operation is in progress.
+	ULONG		 reconSize;
+	USHORT		 demoFail;				// flag for RAID failure demonstration
+	USHORT		 survivor;
+	USHORT		 failinprog;
+	struct timer_list	reconTimer;	
+	struct timer_list	timer;
+	UCHAR		*kBuffer;
+	dma_addr_t	 kBufferDma;
+	UCHAR		 reqSense;
+	UCHAR		 atapiCdb[16];
+	UCHAR		 atapiSpecial;
+	}	ADAPTER2220I, *PADAPTER2220I;
+
+#define HOSTDATA(host) ((PADAPTER2220I)&host->hostdata)
+
+#define	RECON_PHASE_READY		0x01
+#define	RECON_PHASE_COPY		0x02
+#define	RECON_PHASE_UPDATE		0x03
+#define	RECON_PHASE_LAST		0x04
+#define	RECON_PHASE_END			0x07	
+#define	RECON_PHASE_MARKING		0x80
+#define	RECON_PHASE_FAILOVER	0xFF
+
+static struct	Scsi_Host 	   *PsiHost[MAXADAPTER] = {NULL,};  // One for each adapter
+static			int				NumAdapters = 0;
+static			int				Installed = 0;
+static			SETUP			DaleSetup;
+static			DISK_MIRROR		DiskMirror[BIGD_MAXDRIVES];
+static			ULONG			ModeArray[] = {DALE_DATA_MODE2, DALE_DATA_MODE3, DALE_DATA_MODE4, DALE_DATA_MODE5};
+static			ULONG			ModeArray2[] = {BIGD_DATA_MODE2, BIGD_DATA_MODE3, BIGD_DATA_MODE4, BIGD_DATA_MODE5};
+
+static void ReconTimerExpiry (unsigned long data);
+
+/*******************************************************************************************************
+ *	Name:			Alarm
+ *
+ *	Description:	Sound the for the given device
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					device	 - Device number.
+ *	
+ *	Returns:		Nothing.
+ *
+ ******************************************************************************************************/
+static void Alarm (PADAPTER2220I padapter, UCHAR device)
+	{
+	UCHAR	zc;
+
+	if ( padapter->bigD )
+		{
+		zc = device | (FAIL_ANY | FAIL_AUDIBLE);
+		if ( padapter->failRegister & FAIL_ANY ) 
+			zc |= FAIL_MULTIPLE;
+		
+		padapter->failRegister = zc;
+		outb_p (~zc, padapter->regFail);
+		}
+	else
+		outb_p (0x3C | (1 << device), padapter->regFail);			// sound alarm and set fail light		
+	}
+/****************************************************************
+ *	Name:	MuteAlarm	:LOCAL
+ *
+ *	Description:	Mute the audible alarm.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static void MuteAlarm (PADAPTER2220I padapter)
+	{
+	UCHAR	old;
+
+	if ( padapter->bigD )
+		{
+		padapter->failRegister &= ~FAIL_AUDIBLE;
+		outb_p (~padapter->failRegister, padapter->regFail);
+		}
+	else
+		{
+		old = (inb_p (padapter->regStatSel) >> 3) | (inb_p (padapter->regStatSel) & 0x83);
+		outb_p (old | 0x40, padapter->regFail);
+		}
+	}
+/****************************************************************
+ *	Name:	WaitReady	:LOCAL
+ *
+ *	Description:	Wait for device ready.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitReady (PADAPTER2220I padapter)
+	{
+	ULONG	z;
+	UCHAR	status;
+
+	for ( z = 0;  z < (TIMEOUT_READY * 4);  z++ )
+		{
+		status = inb_p (padapter->regStatCmd);
+		if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY )
+			return 0;
+		udelay (250);
+		}
+	return status;
+	}
+/****************************************************************
+ *	Name:	WaitReadyReset	:LOCAL
+ *
+ *	Description:	Wait for device ready.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitReadyReset (PADAPTER2220I padapter)
+	{
+	ULONG	z;
+	UCHAR	status;
+
+	for ( z = 0;  z < (125 * 16);  z++ )				// wait up to 1/4 second
+		{
+		status = inb_p (padapter->regStatCmd);
+		if ( (status & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY )
+			{
+			DEB (printk ("\nPCI2220I:  Reset took %ld mSec to be ready", z / 8));
+			return 0;
+			}
+		udelay (125);
+		}
+	DEB (printk ("\nPCI2220I:  Reset took more than 2 Seconds to come ready, Disk Failure"));
+	return status;
+	}
+/****************************************************************
+ *	Name:	WaitDrq	:LOCAL
+ *
+ *	Description:	Wait for device ready for data transfer.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WaitDrq (PADAPTER2220I padapter)
+	{
+	ULONG	z;
+	UCHAR	status;
+
+	for ( z = 0;  z < (TIMEOUT_DRQ * 4);  z++ )
+		{
+		status = inb_p (padapter->regStatCmd);
+		if ( status & IDE_STATUS_DRQ )
+			return 0;
+		udelay (250);
+		}
+	return status;
+	}
+/****************************************************************
+ *	Name:	AtapiWaitReady	:LOCAL
+ *
+ *	Description:	Wait for device busy and DRQ to be cleared.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					msec	 - Number of milliseconds to wait.
+ *
+ *	Returns:		TRUE if drive does not clear busy in time.
+ *
+ ****************************************************************/
+static int AtapiWaitReady (PADAPTER2220I padapter, int msec)
+	{
+	int z;
+
+	for ( z = 0;  z < (msec * 16);  z++ )
+		{
+		if ( !(inb_p (padapter->regStatCmd) & (IDE_STATUS_BUSY | IDE_STATUS_DRQ)) )
+			return FALSE;
+		udelay (125);
+		}
+	return TRUE;
+	}
+/****************************************************************
+ *	Name:	AtapiWaitDrq	:LOCAL
+ *
+ *	Description:	Wait for device ready for data transfer.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					msec	 - Number of milliseconds to wait.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int AtapiWaitDrq (PADAPTER2220I padapter, int msec)
+	{
+	ULONG	z;
+
+	for ( z = 0;  z < (msec * 16);  z++ )
+		{
+		if ( inb_p (padapter->regStatCmd) & IDE_STATUS_DRQ )
+			return 0;
+		udelay (128);
+		}
+	return TRUE;
+	}
+/****************************************************************
+ *	Name:	HardReset	:LOCAL
+ *
+ *	Description:	Wait for device ready for data transfer.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *					spigot	 - Spigot number.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int HardReset (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot)
+	{
+	DEB (printk ("\npci2220i:RESET  spigot = %X  devices = %d, %d", spigot, pdev->deviceID[0], pdev->deviceID[1]));
+	mdelay (100);										// just wait 100 mSec to let drives flush	
+	SelectSpigot (padapter, spigot | SEL_IRQ_OFF);
+	
+	outb_p (0x0E, padapter->regAltStat);					// reset the suvivor
+	udelay (100);											// wait a little	
+	outb_p (0x08, padapter->regAltStat);					// clear the reset
+	udelay (100);
+
+	outb_p (0xA0, padapter->regLba24);						// select the master drive
+	if ( WaitReadyReset (padapter) )
+		{
+		DEB (printk ("\npci2220i: master not ready after reset"));
+		return TRUE;
+		}
+	outb_p (0xB0, padapter->regLba24);						// try the slave drive
+	if ( (inb_p (padapter->regStatCmd) & (IDE_STATUS_DRDY | IDE_STATUS_BUSY)) == IDE_STATUS_DRDY ) 
+		{
+		DEB (printk ("\nPCI2220I: initializing slave drive on spigot %X", spigot));
+		outb_p (SECTORSXFER, padapter->regSectCount);
+		WriteCommand (padapter, IDE_CMD_SET_MULTIPLE);	
+		if ( WaitReady (padapter) )
+			{
+			DEB (printk ("\npci2220i: slave not ready after set multiple"));
+			return TRUE;
+			}
+		}
+	
+	outb_p (0xA0, padapter->regLba24);				// select the drive
+	outb_p (SECTORSXFER, padapter->regSectCount);
+	WriteCommand (padapter, IDE_CMD_SET_MULTIPLE);	
+	if ( WaitReady (padapter) )
+		{
+		DEB (printk ("\npci2220i: master not ready after set multiple"));
+		return TRUE;
+		}
+	return FALSE;
+	}
+/****************************************************************
+ *	Name:	AtapiReset	:LOCAL
+ *
+ *	Description:	Wait for device ready for data transfer.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *
+ *	Returns:		TRUE if drive does not come ready.
+ *
+ ****************************************************************/
+static int AtapiReset (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	SelectSpigot (padapter, pdev->spigot);
+	AtapiDevice (padapter, pdev->byte6);
+	AtapiCountLo (padapter, 0);
+	AtapiCountHi (padapter, 0);
+	WriteCommand (padapter, IDE_COMMAND_ATAPI_RESET);
+	udelay (125);
+	if ( AtapiWaitReady (padapter, 1000) )
+		return TRUE;
+	if ( inb_p (padapter->regStatCmd) || (inb_p (padapter->regLba8) != 0x14) || (inb_p (padapter->regLba16) != 0xEB) )
+		return TRUE;
+	return FALSE;
+	}
+/****************************************************************
+ *	Name:	WalkScatGath	:LOCAL
+ *
+ *	Description:	Transfer data to/from scatter/gather buffers.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					datain   - TRUE if data read.
+ *					length   - Number of bytes to transfer.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void WalkScatGath (PADAPTER2220I padapter, UCHAR datain, ULONG length)
+	{
+	ULONG	 count;
+	UCHAR	*buffer = padapter->kBuffer;
+
+	while ( length )
+		{
+		count = ( length > padapter->currentSgCount ) ? padapter->currentSgCount : length; 
+		
+		if ( datain )
+			memcpy (padapter->currentSgBuffer, buffer, count);
+		else
+			memcpy (buffer, padapter->currentSgBuffer, count);
+
+		padapter->currentSgCount -= count;
+		if ( !padapter->currentSgCount )
+			{
+			if ( padapter->nextSg < padapter->SCpnt->use_sg )
+				{
+				padapter->currentSgBuffer = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].address;
+				padapter->currentSgCount = ((struct scatterlist *)padapter->SCpnt->request_buffer)[padapter->nextSg].length;
+				padapter->nextSg++;
+				}
+			}
+		else
+			padapter->currentSgBuffer += count;
+
+		length -= count;
+		buffer += count;
+		}
+	}
+/****************************************************************
+ *	Name:	BusMaster	:LOCAL
+ *
+ *	Description:	Do a bus master I/O.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					datain	 - TRUE if data read.
+ *					irq		 - TRUE if bus master interrupt expected.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void BusMaster (PADAPTER2220I padapter, UCHAR datain, UCHAR irq)
+	{
+	ULONG zl;
+	
+	zl = ( padapter->sectorCount > MAX_BUS_MASTER_BLOCKS ) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+	padapter->sectorCount -= zl;
+	zl *= (ULONG)BYTES_PER_SECTOR;
+
+	if ( datain )
+		{
+		padapter->readCount = zl;
+		outb_p (8, padapter->regDmaDesc);							// read operation
+		if ( padapter->bigD )
+			{
+			if ( irq && !padapter->sectorCount )
+				outb_p (0x0C, padapter->regDmaMode);				// interrupt on
+			else
+				outb_p (0x08, padapter->regDmaMode);				// no interrupt
+			}
+		else 
+			{
+			if ( irq && !padapter->sectorCount )
+				outb_p (0x05, padapter->regDmaMode);				// interrupt on
+			else
+				outb_p (0x01, padapter->regDmaMode);				// no interrupt
+			}
+		}
+	else
+		{
+		outb_p (0x00, padapter->regDmaDesc);						// write operation
+		if ( padapter->bigD )
+			outb_p (0x08, padapter->regDmaMode);					// no interrupt						
+		else
+			outb_p (0x01, padapter->regDmaMode);					// no interrupt
+		WalkScatGath (padapter, FALSE, zl);	
+		}
+	
+	outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+	outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+	outl (zl, padapter->regDmaCount);
+	outb_p (0x03, padapter->regDmaCmdStat);							// kick the DMA engine in gear
+	}
+/****************************************************************
+ *	Name:	AtapiBusMaster	:LOCAL
+ *
+ *	Description:	Do a bus master I/O.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					datain	 - TRUE if data read.
+ *					length	 - Number of bytes to transfer.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void AtapiBusMaster (PADAPTER2220I padapter, UCHAR datain, ULONG length)
+	{
+	outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+	outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+	outl (length, padapter->regDmaCount);
+	if ( datain )
+		{
+		if ( padapter->readCount )
+				WalkScatGath (padapter, TRUE, padapter->readCount);
+		outb_p (0x08, padapter->regDmaDesc);						// read operation
+		outb_p (0x08, padapter->regDmaMode);						// no interrupt
+		padapter->readCount = length;
+		}
+	else
+		{
+		outb_p (0x00, padapter->regDmaDesc);						// write operation
+		outb_p (0x08, padapter->regDmaMode);						// no interrupt						
+		if ( !padapter->atapiSpecial )
+			WalkScatGath (padapter, FALSE, length);	
+		}
+	outb_p (0x03, padapter->regDmaCmdStat);							// kick the DMA engine in gear
+	}
+/****************************************************************
+ *	Name:	WriteData	:LOCAL
+ *
+ *	Description:	Write data to device.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		TRUE if drive does not assert DRQ in time.
+ *
+ ****************************************************************/
+static int WriteData (PADAPTER2220I padapter)
+	{
+	ULONG	zl;
+	
+	if ( !WaitDrq (padapter) )
+		{
+		if ( padapter->timingPIO )
+			{
+			zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+			WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR);
+			outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2));
+			padapter->sectorCount -= zl;
+			}
+		else
+			BusMaster (padapter, 0, 0);
+		return 0;
+		}
+	padapter->cmd = 0;												// null out the command byte
+	return 1;
+	}
+/****************************************************************
+ *	Name:	WriteDataBoth	:LOCAL
+ *
+ *	Description:	Write data to device.
+ *
+ *	Parameters:		padapter - Pointer to adapter structure.
+ *					pdev	 - Pointer to device structure
+ *
+ *	Returns:		Index + 1 of drive not failed or zero for OK.
+ *
+ ****************************************************************/
+static int WriteDataBoth (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	ULONG	zl;
+	UCHAR	status0, status1;
+
+	SelectSpigot (padapter, pdev->spigots[0]);
+	status0 = WaitDrq (padapter);
+	if ( !status0 )
+		{
+		SelectSpigot (padapter, pdev->spigots[1]);
+		status1 = WaitDrq (padapter);
+		if ( !status1 )
+			{
+			SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD);
+			if ( padapter->timingPIO )
+				{
+				zl = (padapter->sectorCount > MAX_BUS_MASTER_BLOCKS) ? MAX_BUS_MASTER_BLOCKS : padapter->sectorCount;
+				WalkScatGath (padapter, FALSE, zl * BYTES_PER_SECTOR);
+				outsw (padapter->regData, padapter->kBuffer, zl * (BYTES_PER_SECTOR / 2));
+				padapter->sectorCount -= zl;
+				}
+			else
+				BusMaster (padapter, 0, 0);
+			return 0;
+			}
+		}
+	padapter->cmd = 0;												// null out the command byte
+	if ( status0 )
+		return 2;
+	return 1;
+	}
+/****************************************************************
+ *	Name:	IdeCmd	:LOCAL
+ *
+ *	Description:	Process an IDE command.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *
+ *	Returns:		Zero if no error or status register contents on error.
+ *
+ ****************************************************************/
+static UCHAR IdeCmd (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	UCHAR	status;
+
+	SelectSpigot (padapter, pdev->spigot | padapter->bigD);							// select the spigot
+	outb_p (pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24);			// select the drive
+	status = WaitReady (padapter);
+	if ( !status )
+		{
+		outb_p (padapter->sectorCount, padapter->regSectCount);
+		outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0);
+		outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8);
+		outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16);
+		padapter->expectingIRQ = TRUE;
+		WriteCommand (padapter, padapter->cmd);
+		return 0;
+		}
+
+	padapter->cmd = 0;									// null out the command byte
+	return status;
+	}
+/****************************************************************
+ *	Name:	IdeCmdBoth	:LOCAL
+ *
+ *	Description:	Process an IDE command to both drivers.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device structure
+ *
+ *	Returns:		Index + 1 of drive not failed or zero for OK.
+ *
+ ****************************************************************/
+static UCHAR IdeCmdBoth (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	UCHAR	status0;
+	UCHAR	status1;
+
+	SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]);								// select the spigots
+	outb_p (padapter->pdev->byte6 | ((UCHAR *)(&padapter->startSector))[3], padapter->regLba24);// select the drive
+	SelectSpigot (padapter, pdev->spigots[0]);
+	status0 = WaitReady (padapter);
+	if ( !status0 )
+		{
+		SelectSpigot (padapter, pdev->spigots[1]);
+		status1 = WaitReady (padapter);
+		if ( !status1 )
+			{
+			SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1] | padapter->bigD);
+			outb_p (padapter->sectorCount, padapter->regSectCount);
+			outb_p (((UCHAR *)(&padapter->startSector))[0], padapter->regLba0);
+			outb_p (((UCHAR *)(&padapter->startSector))[1], padapter->regLba8);
+			outb_p (((UCHAR *)(&padapter->startSector))[2], padapter->regLba16);
+			padapter->expectingIRQ = TRUE;
+			WriteCommand (padapter, padapter->cmd);
+			return 0;
+			}
+		}
+	padapter->cmd = 0;									// null out the command byte
+	if ( status0 )
+		return 2;
+	return 1;
+	}
+/****************************************************************
+ *	Name:	OpDone	:LOCAL
+ *
+ *	Description:	Complete an operatoin done sequence.
+ *
+ *	Parameters:		padapter - Pointer to host data block.
+ *					spigot	 - Spigot select code.
+ *					device	 - Device byte code.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void OpDone (PADAPTER2220I padapter, ULONG result)
+	{
+	Scsi_Cmnd	   *SCpnt = padapter->SCpnt;
+	
+	if ( padapter->reconPhase )
+		{
+		padapter->reconPhase = 0;
+		if ( padapter->SCpnt )
+			{
+			Pci2220i_QueueCommand (SCpnt, SCpnt->scsi_done);
+			}
+		else
+			{
+			if ( padapter->reconOn )
+				{
+				ReconTimerExpiry ((unsigned long)padapter);
+				}
+			}
+		}
+	else
+		{
+		padapter->cmd = 0;
+		padapter->SCpnt = NULL;	
+		padapter->pdev = NULL;
+		SCpnt->result = result;
+		SCpnt->scsi_done (SCpnt);
+		if ( padapter->reconOn && !padapter->reconTimer.data )
+			{
+			padapter->reconTimer.expires = jiffies + (HZ / 4);	// start in 1/4 second
+			padapter->reconTimer.data = (unsigned long)padapter;
+			add_timer (&padapter->reconTimer);
+			}
+		}
+	}
+/****************************************************************
+ *	Name:	InlineIdentify	:LOCAL
+ *
+ *	Description:	Do an intline inquiry on a drive.
+ *
+ *	Parameters:		padapter - Pointer to host data block.
+ *					spigot	 - Spigot select code.
+ *					device	 - Device byte code.
+ *
+ *	Returns:		Last addressable sector or zero if none.
+ *
+ ****************************************************************/
+static ULONG InlineIdentify (PADAPTER2220I padapter, UCHAR spigot, UCHAR device)
+	{
+	PIDENTIFY_DATA	pid = (PIDENTIFY_DATA)padapter->kBuffer;
+
+	SelectSpigot (padapter, spigot | SEL_IRQ_OFF);					// select the spigot
+	outb_p ((device << 4) | 0xA0, padapter->regLba24);				// select the drive
+	if ( WaitReady (padapter) )
+		return 0;
+	WriteCommand (padapter, IDE_COMMAND_IDENTIFY);	
+	if ( WaitDrq (padapter) )
+		return 0;
+	insw (padapter->regData, padapter->kBuffer, sizeof (IDENTIFY_DATA) >> 1);
+	return (pid->LBATotalSectors - 1);
+	}
+/****************************************************************
+ *	Name:	AtapiIdentify	:LOCAL
+ *
+ *	Description:	Do an intline inquiry on a drive.
+ *
+ *	Parameters:		padapter - Pointer to host data block.
+ *					pdev	 - Pointer to device table.
+ *
+ *	Returns:		TRUE on error.
+ *
+ ****************************************************************/
+static ULONG AtapiIdentify (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	ATAPI_GENERAL_0		ag0;
+	USHORT				zs;
+	int					z;
+
+	AtapiDevice (padapter, pdev->byte6);	
+	WriteCommand (padapter, IDE_COMMAND_ATAPI_IDENTIFY);	
+	if ( AtapiWaitDrq (padapter, 3000) )
+		return TRUE;
+
+	*(USHORT *)&ag0 = inw_p (padapter->regData);
+	for ( z = 0;  z < 255;  z++ )
+		zs = inw_p (padapter->regData);
+
+	if ( ag0.ProtocolType == 2 )
+		{
+		if ( ag0.CmdDrqType == 1 )
+			pdev->cmdDrqInt = TRUE;
+		switch ( ag0.CmdPacketSize )
+			{
+			case 0:
+				pdev->packet = 6;
+				break;
+			case 1:
+				pdev->packet = 8;
+				break;
+			default:
+				pdev->packet = 6;
+				break;
+			}
+		return FALSE;
+		}
+	return TRUE;
+	}
+/****************************************************************
+ *	Name:	Atapi2Scsi
+ *
+ *	Description:	Convert ATAPI data to SCSI data.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					SCpnt	 - Pointer to SCSI command structure.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+void Atapi2Scsi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt)
+	{
+	UCHAR	*buff = padapter->currentSgBuffer;
+ 
+	switch ( SCpnt->cmnd[0] )
+		{
+		case SCSIOP_MODE_SENSE:
+			buff[0] = padapter->kBuffer[1];
+			buff[1] = padapter->kBuffer[2];
+			buff[2] = padapter->kBuffer[3];
+			buff[3] = padapter->kBuffer[7];
+			memcpy (&buff[4], &padapter->kBuffer[8], padapter->atapiCdb[8] - 8);
+			break;
+		case SCSIOP_INQUIRY:
+			padapter->kBuffer[2] = 2;
+			memcpy (buff, padapter->kBuffer, padapter->currentSgCount);
+			break;		
+		default:
+			if ( padapter->readCount )
+				WalkScatGath (padapter, TRUE, padapter->readCount);
+			break;
+		}
+	}
+/****************************************************************
+ *	Name:	Scsi2Atapi
+ *
+ *	Description:	Convert SCSI packet command to Atapi packet command.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					SCpnt	 - Pointer to SCSI command structure.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void Scsi2Atapi (PADAPTER2220I padapter, Scsi_Cmnd *SCpnt)
+	{
+	UCHAR	*cdb = SCpnt->cmnd;
+	UCHAR	*buff = padapter->currentSgBuffer;
+
+	switch (cdb[0]) 
+		{
+		case SCSIOP_READ6:
+            padapter->atapiCdb[0] = SCSIOP_READ;
+			padapter->atapiCdb[1] = cdb[1] & 0xE0;
+            padapter->atapiCdb[3] = cdb[1] & 0x1F;
+			padapter->atapiCdb[4] = cdb[2];
+			padapter->atapiCdb[5] = cdb[3];
+			padapter->atapiCdb[8] = cdb[4];
+			padapter->atapiCdb[9] = cdb[5];
+			break;
+		case SCSIOP_WRITE6:
+            padapter->atapiCdb[0] = SCSIOP_WRITE;
+			padapter->atapiCdb[1] = cdb[1] & 0xE0;
+            padapter->atapiCdb[3] = cdb[1] & 0x1F;
+			padapter->atapiCdb[4] = cdb[2];
+			padapter->atapiCdb[5] = cdb[3];
+			padapter->atapiCdb[8] = cdb[4];
+			padapter->atapiCdb[9] = cdb[5];
+			break;
+        case SCSIOP_MODE_SENSE: 
+            padapter->atapiCdb[0] = SCSIOP_MODE_SENSE10;
+			padapter->atapiCdb[2] = cdb[2];
+			padapter->atapiCdb[8] = cdb[4] + 4;
+            break;
+
+        case SCSIOP_MODE_SELECT: 
+			padapter->atapiSpecial = TRUE;
+			padapter->atapiCdb[0] = SCSIOP_MODE_SELECT10;
+			padapter->atapiCdb[1] = cdb[1] | 0x10;
+			memcpy (padapter->kBuffer, buff, 4);
+			padapter->kBuffer[4] = padapter->kBuffer[5] = 0;
+			padapter->kBuffer[6] = padapter->kBuffer[7] = 0;
+			memcpy (&padapter->kBuffer[8], &buff[4], cdb[4] - 4);
+			padapter->atapiCdb[8] = cdb[4] + 4;
+			break;
+	    }
+	}
+/****************************************************************
+ *	Name:	AtapiSendCdb
+ *
+ *	Description:	Send the CDB packet to the device.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *					cdb		 - Pointer to 16 byte SCSI cdb.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void AtapiSendCdb (PADAPTER2220I padapter, POUR_DEVICE pdev, CHAR *cdb)
+	{
+	DEB (printk ("\nPCI2242I: CDB: %X %X %X %X %X %X %X %X %X %X %X %X", cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9], cdb[10], cdb[11]));
+	outsw (padapter->regData, cdb, pdev->packet);
+	}
+/****************************************************************
+ *	Name:	AtapiRequestSense
+ *
+ *	Description:	Send the CDB packet to the device.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *					SCpnt	 - Pointer to SCSI command structure.
+ *					pass	 - If true then this is the second pass to send cdb.
+ *
+ *	Returns:		TRUE on error.
+ *
+ ****************************************************************/
+static int AtapiRequestSense (PADAPTER2220I padapter, POUR_DEVICE pdev, Scsi_Cmnd *SCpnt, UCHAR pass)
+	{
+	UCHAR	cdb[16] = {SCSIOP_REQUEST_SENSE,0,0,0,16,0,0,0,0,0,0,0,0,0,0,0};		
+	
+	DEB (printk ("\nPCI2242I: AUTO REQUEST SENSE"));
+	cdb[4] = (UCHAR)(sizeof (SCpnt->sense_buffer));
+	if ( !pass )
+		{
+		padapter->reqSense = TRUE;
+	 	AtapiCountLo (padapter, cdb[4]);						
+		AtapiCountHi (padapter, 0);						
+		outb_p (0, padapter->regError);						
+		WriteCommand (padapter, IDE_COMMAND_ATAPI_PACKET);
+		if ( pdev->cmdDrqInt )
+			return FALSE;
+
+		if ( AtapiWaitDrq (padapter, 500) )
+			return TRUE;
+		}
+	AtapiSendCdb (padapter, pdev, cdb);	
+	return FALSE;
+	}
+/****************************************************************
+ *	Name:	InlineReadSignature	:LOCAL
+ *
+ *	Description:	Do an inline read RAID sigature.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to device.
+ *					index	 - index of data to read.
+ *
+ *	Returns:		Zero if no error or status register contents on error.
+ *
+ ****************************************************************/
+static UCHAR InlineReadSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, int index)
+	{
+	UCHAR	status;
+	ULONG	zl = pdev->lastsectorlba[index];
+
+	SelectSpigot (padapter, pdev->spigots[index] | SEL_IRQ_OFF);	// select the spigot without interrupts
+	outb_p (pdev->byte6 | ((UCHAR *)&zl)[3], padapter->regLba24);		
+	status = WaitReady (padapter);
+	if ( !status )
+		{
+		outb_p (((UCHAR *)&zl)[2], padapter->regLba16);
+		outb_p (((UCHAR *)&zl)[1], padapter->regLba8); 
+		outb_p (((UCHAR *)&zl)[0], padapter->regLba0);
+		outb_p (1, padapter->regSectCount);
+		WriteCommand (padapter, IDE_COMMAND_READ);
+		status = WaitDrq (padapter);
+		if ( !status )
+			{
+			insw (padapter->regData, padapter->kBuffer, BYTES_PER_SECTOR / 2);
+			((ULONG *)(&pdev->DiskMirror[index]))[0] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[0];
+			((ULONG *)(&pdev->DiskMirror[index]))[1] = ((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[1];
+			// some drives assert DRQ before IRQ so let's make sure we clear the IRQ
+			WaitReady (padapter);
+			return 0;			
+			}
+		}
+	return status;
+	}
+/****************************************************************
+ *	Name:	DecodeError	:LOCAL
+ *
+ *	Description:	Decode and process device errors.
+ *
+ *	Parameters:		padapter - Pointer to adapter data.
+ *					status - Status register code.
+ *
+ *	Returns:		The driver status code.
+ *
+ ****************************************************************/
+static ULONG DecodeError (PADAPTER2220I	padapter, UCHAR status)
+	{
+	UCHAR			error;
+
+	padapter->expectingIRQ = 0;
+	if ( status & IDE_STATUS_WRITE_FAULT )
+		{
+		return DID_PARITY << 16;
+		}
+	if ( status & IDE_STATUS_BUSY )
+		return DID_BUS_BUSY << 16;
+
+	error = inb_p (padapter->regError);
+	DEB(printk ("\npci2220i error register: %x", error));
+	switch ( error )
+		{
+		case IDE_ERROR_AMNF:
+		case IDE_ERROR_TKONF:
+		case IDE_ERROR_ABRT:
+		case IDE_ERROR_IDFN:
+		case IDE_ERROR_UNC:
+		case IDE_ERROR_BBK:
+		default:
+			return DID_ERROR << 16;
+		}
+	return DID_ERROR << 16;
+	}
+/****************************************************************
+ *	Name:	StartTimer	:LOCAL
+ *
+ *	Description:	Start the timer.
+ *
+ *	Parameters:		ipadapter - Pointer adapter data structure.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void StartTimer (PADAPTER2220I padapter)
+	{
+	padapter->timer.expires = jiffies + TIMEOUT_DATA;
+	add_timer (&padapter->timer);
+	}
+/****************************************************************
+ *	Name:	WriteSignature	:LOCAL
+ *
+ *	Description:	Start the timer.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to our device.
+ *					spigot	 - Selected spigot.
+ *					index	 - index of mirror signature on device.
+ *
+ *	Returns:		TRUE on any error.
+ *
+ ****************************************************************/
+static int WriteSignature (PADAPTER2220I padapter, POUR_DEVICE pdev, UCHAR spigot, int index)
+	{
+	ULONG	zl;
+
+	SelectSpigot (padapter, spigot);
+	zl = pdev->lastsectorlba[index];
+	outb_p (pdev->byte6 | ((UCHAR *)&zl)[3], padapter->regLba24);		
+	outb_p (((UCHAR *)&zl)[2], padapter->regLba16);
+	outb_p (((UCHAR *)&zl)[1], padapter->regLba8);
+	outb_p (((UCHAR *)&zl)[0], padapter->regLba0);
+	outb_p (1, padapter->regSectCount);
+
+	WriteCommand (padapter, IDE_COMMAND_WRITE);	
+	if ( WaitDrq (padapter) )
+		return TRUE;
+	StartTimer (padapter);	
+	padapter->expectingIRQ = TRUE;
+	
+	((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[0] = ((ULONG *)(&pdev->DiskMirror[index]))[0];
+	((ULONG *)(&padapter->kBuffer[DISK_MIRROR_POSITION]))[1] = ((ULONG *)(&pdev->DiskMirror[index]))[1];
+	outsw (padapter->regData, padapter->kBuffer, BYTES_PER_SECTOR / 2);
+	return FALSE;
+	}
+/*******************************************************************************************************
+ *	Name:			InitFailover
+ *
+ *	Description:	This is the beginning of the failover routine
+ *
+ *	Parameters:		SCpnt	 - Pointer to SCSI command structure.
+ *					padapter - Pointer adapter data structure.
+ *					pdev	 - Pointer to our device.
+ *	
+ *	Returns:		TRUE on error.
+ *
+ ******************************************************************************************************/
+static int InitFailover (PADAPTER2220I padapter, POUR_DEVICE pdev)
+	{
+	UCHAR	spigot;
+	
+	DEB (printk ("\npci2220i:  Initialize failover process - survivor = %d", pdev->deviceID[padapter->survivor]));
+	pdev->raid = FALSE;									//initializes system for non raid mode
+	pdev->reconOn = FALSE;
+	spigot = pdev->spigots[padapter->survivor];	
+
+	if ( pdev->DiskMirror[padapter->survivor].status & UCBF_REBUILD )
+		{
+		DEB (printk ("\n         failed, is survivor"));
+		return (TRUE); 
+		}
+
+	if ( HardReset (padapter, pdev, spigot) )
+		{
+		DEB (printk ("\n         failed, reset"));
+		return TRUE;
+		}
+
+	Alarm (padapter, pdev->deviceID[padapter->survivor ^ 1]);
+	pdev->DiskMirror[padapter->survivor].status = UCBF_MIRRORED | UCBF_SURVIVOR;	//clear present status
+	
+	if ( WriteSignature (padapter, pdev, spigot, padapter->survivor) )
+		{
+		DEB (printk ("\n         failed, write signature"));
+		return TRUE;
+		}
+	padapter->failinprog = TRUE;
+	return FALSE;
+	}
+/****************************************************************
+ *	Name:	TimerExpiry	:LOCAL
+ *
+ *	Description:	Timer expiry routine.
+ *
+ *	Parameters:		data - Pointer adapter data structure.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void TimerExpiry (unsigned long data)
+	{
+	PADAPTER2220I	padapter = (PADAPTER2220I)data;
+	struct Scsi_Host *host = padapter->SCpnt->device->host;
+	POUR_DEVICE		pdev = padapter->pdev;
+	UCHAR			status = IDE_STATUS_BUSY;
+	UCHAR			temp, temp1;
+    unsigned long		flags;
+
+    /*
+     * Disable interrupts, if they aren't already disabled and acquire
+     * the I/O spinlock.
+     */
+    spin_lock_irqsave (host->host_lock, flags);
+	DEB (printk ("\nPCI2220I: Timeout expired "));
+
+	if ( padapter->failinprog )
+		{
+		DEB (printk ("in failover process"));
+		OpDone (padapter, DecodeError (padapter, inb_p (padapter->regStatCmd)));
+		goto timerExpiryDone;
+		}
+	
+	while ( padapter->reconPhase )
+		{
+		DEB (printk ("in recon phase %X", padapter->reconPhase));
+		switch ( padapter->reconPhase )
+			{
+			case RECON_PHASE_MARKING:
+			case RECON_PHASE_LAST:
+				padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+				DEB (printk ("\npci2220i: FAILURE 1"));
+				if ( InitFailover (padapter, pdev) )
+					OpDone (padapter, DID_ERROR << 16);
+				goto timerExpiryDone;
+			
+			case RECON_PHASE_READY:
+				OpDone (padapter, DID_ERROR << 16);
+				goto timerExpiryDone;
+
+			case RECON_PHASE_COPY:
+				padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+				DEB (printk ("\npci2220i: FAILURE 2"));
+				DEB (printk ("\n       spig/stat = %X", inb_p (padapter->regStatSel));
+				if ( InitFailover (padapter, pdev) )
+					OpDone (padapter, DID_ERROR << 16);
+				goto timerExpiryDone;
+
+			case RECON_PHASE_UPDATE:
+				padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+				DEB (printk ("\npci2220i: FAILURE 3")));
+				if ( InitFailover (padapter, pdev) )
+					OpDone (padapter, DID_ERROR << 16);
+				goto timerExpiryDone;
+
+			case RECON_PHASE_END:
+				padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+				DEB (printk ("\npci2220i: FAILURE 4"));
+				if ( InitFailover (padapter, pdev) )
+					OpDone (padapter, DID_ERROR << 16);
+				goto timerExpiryDone;
+			
+			default:
+				goto timerExpiryDone;
+			}
+		}
+	
+	while ( padapter->cmd )
+		{
+		outb_p (0x08, padapter->regDmaCmdStat);					// cancel interrupt from DMA engine
+		if ( pdev->raid )
+			{
+			if ( padapter->cmd == WRITE_CMD )
+				{
+				DEB (printk ("in RAID write operation"));
+				temp = ( pdev->spigot & (SEL_1 | SEL_2) ) ? SEL_1 : SEL_3;
+				if ( inb_p (padapter->regStatSel) & temp )
+					{
+					DEB (printk ("\npci2220i: Determined A OK"));
+					SelectSpigot (padapter, temp | SEL_IRQ_OFF); // Masking the interrupt during spigot select
+					temp = inb_p (padapter->regStatCmd);
+					}
+				else
+					temp = IDE_STATUS_BUSY;
+
+				temp1 = ( pdev->spigot & (SEL_1 | SEL_2) ) ? SEL_2 : SEL_4;
+				if ( inb (padapter->regStatSel) & temp1 )
+					{
+					DEB (printk ("\npci2220i: Determined B OK"));
+					SelectSpigot (padapter, temp1 | SEL_IRQ_OFF); // Masking the interrupt during spigot select
+					temp1 = inb_p (padapter->regStatCmd);
+					}
+				else
+					temp1 = IDE_STATUS_BUSY;
+			
+				if ( (temp & IDE_STATUS_BUSY) || (temp1 & IDE_STATUS_BUSY) )
+					{
+					DEB (printk ("\npci2220i: Status A: %X   B: %X", temp & 0xFF, temp1 & 0xFF));
+	 				if ( (temp & IDE_STATUS_BUSY) && (temp1 & IDE_STATUS_BUSY) ) 
+						{
+						status = temp;
+						break;
+						}		
+					else	
+						{
+						if ( temp & IDE_STATUS_BUSY )
+							padapter->survivor = 1;
+						else
+							padapter->survivor = 0;
+						if ( InitFailover (padapter, pdev) )
+							{
+							status = inb_p (padapter->regStatCmd);
+							break;
+							}
+						goto timerExpiryDone;
+						}
+					}
+				}
+			else
+				{
+				DEB (printk ("in RAID read operation"));
+				padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+				DEB (printk ("\npci2220i: FAILURE 6"));
+				if ( InitFailover (padapter, pdev) )
+					{
+					status = inb_p (padapter->regStatCmd);
+					break;
+					}
+				goto timerExpiryDone;
+				}
+			}
+		else
+			{
+			DEB (printk ("in I/O operation"));
+			status = inb_p (padapter->regStatCmd);
+			}
+		break;
+		}
+	
+	OpDone (padapter, DecodeError (padapter, status));
+
+timerExpiryDone:;
+    /*
+     * Release the I/O spinlock and restore the original flags
+     * which will enable interrupts if and only if they were
+     * enabled on entry.
+     */
+    spin_unlock_irqrestore (host->host_lock, flags);
+	}
+/****************************************************************
+ *	Name:			SetReconstruct	:LOCAL
+ *
+ *	Description:	Set the reconstruct up.
+ *
+ *	Parameters:		pdev	- Pointer to device structure.
+ *					index	- Mirror index number.
+ *
+ *	Returns:		Number of sectors on new disk required.
+ *
+ ****************************************************************/
+static LONG SetReconstruct (POUR_DEVICE pdev, int index)
+	{
+	pdev->DiskMirror[index].status = UCBF_MIRRORED;							// setup the flags
+	pdev->DiskMirror[index ^ 1].status = UCBF_MIRRORED | UCBF_REBUILD;
+	pdev->DiskMirror[index ^ 1].reconstructPoint = 0;						// start the reconstruct
+	pdev->reconCount = 1990;												// mark target drive early
+	return pdev->DiskMirror[index].reconstructPoint;
+	}
+/****************************************************************
+ *	Name:	ReconTimerExpiry	:LOCAL
+ *
+ *	Description:	Reconstruct timer expiry routine.
+ *
+ *	Parameters:		data - Pointer adapter data structure.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static void ReconTimerExpiry (unsigned long data)
+	{
+	PADAPTER2220I	padapter = (PADAPTER2220I)data;
+	struct Scsi_Host *host = padapter->SCpnt->device->host;
+	POUR_DEVICE		pdev;
+	ULONG			testsize = 0;
+	PIDENTIFY_DATA	pid;
+	USHORT			minmode;
+	ULONG			zl;
+	UCHAR			zc;
+	USHORT			z;
+    unsigned long	flags;
+
+    /*
+     * Disable interrupts, if they aren't already disabled and acquire
+     * the I/O spinlock.
+     */
+    spin_lock_irqsave(host->host_lock, flags);
+
+	if ( padapter->SCpnt )
+		goto reconTimerExpiry;
+
+	padapter->reconTimer.data = 0;
+	for ( z = padapter->devInReconIndex + 1;  z < BIGD_MAXDRIVES;  z++ )
+		{
+		if ( padapter->device[z].reconOn )
+			break;
+		}
+	if ( z < BIGD_MAXDRIVES )
+		pdev = &padapter->device[z];
+	else
+		{
+		for ( z = 0;  z < BIGD_MAXDRIVES;  z++ )
+			{
+			if ( padapter->device[z].reconOn )
+				break;
+			}
+		if ( z < BIGD_MAXDRIVES )
+			pdev = &padapter->device[z];
+		else
+			{
+			padapter->reconOn = FALSE;
+			goto reconTimerExpiry;
+			}
+		}
+
+	padapter->devInReconIndex = z;
+	pid = (PIDENTIFY_DATA)padapter->kBuffer;
+	padapter->pdev = pdev;
+	if ( pdev->reconIsStarting )
+		{
+		pdev->reconIsStarting = FALSE;
+		pdev->reconOn = FALSE;
+
+		while ( (pdev->DiskMirror[0].signature == SIGNATURE) && (pdev->DiskMirror[1].signature == SIGNATURE) &&
+			 (pdev->DiskMirror[0].pairIdentifier == (pdev->DiskMirror[1].pairIdentifier ^ 1)) )
+			{
+			if ( (pdev->DiskMirror[0].status & UCBF_MATCHED) && (pdev->DiskMirror[1].status & UCBF_MATCHED) )
+				break;
+
+			if ( pdev->DiskMirror[0].status & UCBF_SURVIVOR )				// is first drive survivor?
+				testsize = SetReconstruct (pdev, 0);
+			else
+				if ( pdev->DiskMirror[1].status & UCBF_SURVIVOR )			// is second drive survivor?
+					testsize = SetReconstruct (pdev, 1);
+
+			if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+				{
+				if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+					pdev->mirrorRecon = 0;
+				else
+					pdev->mirrorRecon = 1;
+				pdev->reconOn = TRUE;
+				}
+			break;
+			}
+
+		if ( !pdev->reconOn )
+			goto reconTimerExpiry;
+
+		if ( padapter->bigD )
+			{
+			padapter->failRegister = 0;
+			outb_p (~padapter->failRegister, padapter->regFail);
+			}
+		else
+			{
+			zc = ((inb_p (padapter->regStatSel) >> 3) | inb_p (padapter->regStatSel)) & 0x83;		// mute the alarm
+			outb_p (0xFF, padapter->regFail);
+			}
+
+		while ( 1 )
+			{
+			DEB (printk ("\npci2220i: hard reset issue"));
+			if ( HardReset (padapter, pdev, pdev->spigots[pdev->mirrorRecon]) )
+				{
+				DEB (printk ("\npci2220i: sub 1"));
+				break;
+				}
+
+			pdev->lastsectorlba[pdev->mirrorRecon] = InlineIdentify (padapter, pdev->spigots[pdev->mirrorRecon], pdev->deviceID[pdev->mirrorRecon] & 1);
+
+			if ( pdev->lastsectorlba[pdev->mirrorRecon] < testsize )
+				{
+				DEB (printk ("\npci2220i: sub 2 %ld %ld", pdev->lastsectorlba[pdev->mirrorRecon], testsize));
+				break;
+				}
+
+	        // test LBA and multiper sector transfer compatibility
+			if (!pid->SupportLBA || (pid->NumSectorsPerInt < SECTORSXFER) || !pid->Valid_64_70 )
+				{
+				DEB (printk ("\npci2220i: sub 3"));
+				break;
+				}
+
+	        // test PIO/bus matering mode compatibility
+			if ( (pid->MinPIOCycleWithoutFlow > 240) && !pid->SupportIORDYDisable && !padapter->timingPIO )
+				{
+				DEB (printk ("\npci2220i: sub 4"));
+				break;
+				}
+
+			if ( pid->MinPIOCycleWithoutFlow <= 120 )	// setup timing mode of drive
+				minmode = 5;
+			else
+				{
+				if ( pid->MinPIOCylceWithFlow <= 150 )
+					minmode = 4;
+				else
+					{
+					if ( pid->MinPIOCylceWithFlow <= 180 )
+						minmode = 3;
+					else
+						{
+						if ( pid->MinPIOCylceWithFlow <= 240 )
+							minmode = 2;
+						else
+							{
+							DEB (printk ("\npci2220i: sub 5"));
+							break;
+							}
+						}
+					}
+				}
+
+			if ( padapter->timingMode > minmode )									// set minimum timing mode
+				padapter->timingMode = minmode;
+			if ( padapter->timingMode >= 2 )
+				padapter->timingAddress	= ModeArray[padapter->timingMode - 2];
+			else
+				padapter->timingPIO = TRUE;
+
+			padapter->reconOn = TRUE;
+			break;
+			}
+
+		if ( !pdev->reconOn )
+			{		
+			padapter->survivor = pdev->mirrorRecon ^ 1;
+			padapter->reconPhase = RECON_PHASE_FAILOVER;
+			DEB (printk ("\npci2220i: FAILURE 7"));
+			InitFailover (padapter, pdev);
+			goto reconTimerExpiry;
+			}
+
+		pdev->raid = TRUE;
+	
+		if ( WriteSignature (padapter, pdev, pdev->spigot, pdev->mirrorRecon ^ 1) )
+			goto reconTimerExpiry;
+		padapter->reconPhase = RECON_PHASE_MARKING;
+		goto reconTimerExpiry;
+		}
+
+	//**********************************
+	// reconstruct copy starts here	
+	//**********************************
+	if ( pdev->reconCount++ > 2000 )
+		{
+		pdev->reconCount = 0;
+		if ( WriteSignature (padapter, pdev, pdev->spigots[pdev->mirrorRecon], pdev->mirrorRecon) )
+			{
+			padapter->survivor = pdev->mirrorRecon ^ 1;
+			padapter->reconPhase = RECON_PHASE_FAILOVER;
+			DEB (printk ("\npci2220i: FAILURE 8"));
+			InitFailover (padapter, pdev);
+			goto reconTimerExpiry;
+			}
+		padapter->reconPhase = RECON_PHASE_UPDATE;
+		goto reconTimerExpiry;
+		}
+
+	zl = pdev->DiskMirror[pdev->mirrorRecon].reconstructPoint;	
+	padapter->reconSize = pdev->DiskMirror[pdev->mirrorRecon ^ 1].reconstructPoint - zl;
+	if ( padapter->reconSize > MAX_BUS_MASTER_BLOCKS )
+		padapter->reconSize = MAX_BUS_MASTER_BLOCKS;
+
+	if ( padapter->reconSize )
+		{
+		SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]);	// select the spigots
+		outb_p (pdev->byte6 | ((UCHAR *)(&zl))[3], padapter->regLba24);	// select the drive
+		SelectSpigot (padapter, pdev->spigot);
+		if ( WaitReady (padapter) )
+			goto reconTimerExpiry;
+
+		SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+		if ( WaitReady (padapter) )
+			{
+			padapter->survivor = pdev->mirrorRecon ^ 1;
+			padapter->reconPhase = RECON_PHASE_FAILOVER;
+			DEB (printk ("\npci2220i: FAILURE 9"));
+			InitFailover (padapter, pdev);
+			goto reconTimerExpiry;
+			}
+	
+		SelectSpigot (padapter, pdev->spigots[0] | pdev->spigots[1]);
+		outb_p (padapter->reconSize & 0xFF, padapter->regSectCount);
+		outb_p (((UCHAR *)(&zl))[0], padapter->regLba0);
+		outb_p (((UCHAR *)(&zl))[1], padapter->regLba8);
+		outb_p (((UCHAR *)(&zl))[2], padapter->regLba16);
+		padapter->expectingIRQ = TRUE;
+		padapter->reconPhase = RECON_PHASE_READY;
+		SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+		WriteCommand (padapter, WRITE_CMD);
+		StartTimer (padapter);
+		SelectSpigot (padapter, pdev->spigot);
+		WriteCommand (padapter, READ_CMD);
+		goto reconTimerExpiry;
+		}
+
+	pdev->DiskMirror[pdev->mirrorRecon].status = UCBF_MIRRORED | UCBF_MATCHED;
+	pdev->DiskMirror[pdev->mirrorRecon ^ 1].status = UCBF_MIRRORED | UCBF_MATCHED;
+	if ( WriteSignature (padapter, pdev, pdev->spigot, pdev->mirrorRecon ^ 1) )
+		goto reconTimerExpiry;
+	padapter->reconPhase = RECON_PHASE_LAST;
+
+reconTimerExpiry:;
+    /*
+     * Release the I/O spinlock and restore the original flags
+     * which will enable interrupts if and only if they were
+     * enabled on entry.
+     */
+    spin_unlock_irqrestore(host->host_lock, flags);
+	}
+/****************************************************************
+ *	Name:	Irq_Handler	:LOCAL
+ *
+ *	Description:	Interrupt handler.
+ *
+ *	Parameters:		irq		- Hardware IRQ number.
+ *					dev_id	-
+ *					regs	-
+ *
+ *	Returns:		TRUE if drive is not ready in time.
+ *
+ ****************************************************************/
+static irqreturn_t Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
+	{
+	struct Scsi_Host   *shost = NULL;	// Pointer to host data block
+	PADAPTER2220I		padapter;		// Pointer to adapter control structure
+	POUR_DEVICE			pdev;
+	Scsi_Cmnd		   *SCpnt;
+	UCHAR				status;
+	UCHAR				status1;
+	ATAPI_STATUS		statusa;
+	ATAPI_REASON		reasona;
+	ATAPI_ERROR			errora;
+	int					z;
+	ULONG				zl;
+    unsigned long		flags;
+    int handled = 0;
+
+//	DEB (printk ("\npci2220i received interrupt\n"));
+
+	for ( z = 0; z < NumAdapters;  z++ )								// scan for interrupt to process
+		{
+		if ( PsiHost[z]->irq == (UCHAR)(irq & 0xFF) )
+			{
+			if ( inw_p (HOSTDATA(PsiHost[z])->regIrqControl) & 0x8000 )
+				{
+				shost = PsiHost[z];
+				break;
+				}
+			}
+		}
+
+	if ( !shost )
+		{
+		DEB (printk ("\npci2220i: not my interrupt"));
+		goto out;
+		}
+
+	handled = 1;
+	spin_lock_irqsave(shost->host_lock, flags);
+	padapter = HOSTDATA(shost);
+	pdev = padapter->pdev;
+	SCpnt = padapter->SCpnt;
+	outb_p (0x08, padapter->regDmaCmdStat);									// cancel interrupt from DMA engine
+
+	if ( padapter->atapi && SCpnt )
+		{
+		*(char *)&statusa = inb_p (padapter->regStatCmd);						// read the device status
+		*(char *)&reasona = inb_p (padapter->regSectCount);						// read the device interrupt reason
+	
+		if ( !statusa.bsy )
+			{
+			if ( statusa.drq )													// test for transfer phase
+				{
+				if ( !reasona.cod )												// test for data phase
+					{
+					z = (ULONG)inb_p (padapter->regLba8) | (ULONG)(inb_p (padapter->regLba16) << 8);
+					if ( padapter->reqSense )
+						insw (padapter->regData, SCpnt->sense_buffer, z / 2);
+					else
+						AtapiBusMaster (padapter, reasona.io, z);
+					goto irq_return;
+					}
+				if ( reasona.cod && !reasona.io )								// test for command packet phase
+					{
+					if ( padapter->reqSense )
+						AtapiRequestSense (padapter, pdev, SCpnt, TRUE);
+					else
+						AtapiSendCdb (padapter, pdev, padapter->atapiCdb);
+					goto irq_return;
+					}
+				}
+			else
+				{
+				if ( reasona.io && statusa.drdy )								// test for status phase
+					{
+					Atapi2Scsi (padapter, SCpnt);
+					if ( statusa.check )
+						{
+						*(UCHAR *)&errora = inb_p (padapter->regError);			// read the device error
+						if ( errora.senseKey )
+							{
+							if ( padapter->reqSense || AtapiRequestSense (padapter, pdev, SCpnt, FALSE) )
+								OpDone (padapter, DID_ERROR << 16);
+							}
+						else
+							{
+							if ( errora.ili || errora.abort )
+								OpDone (padapter, DID_ERROR << 16);
+							else
+								OpDone (padapter, DID_OK << 16);	
+							}
+						}
+					else
+						if ( padapter->reqSense )
+							{
+							DEB (printk ("PCI2242I: Sense codes - %X %X %X ", ((UCHAR *)SCpnt->sense_buffer)[0], ((UCHAR *)SCpnt->sense_buffer)[12], ((UCHAR *)SCpnt->sense_buffer)[13]));
+							OpDone (padapter, (DRIVER_SENSE << 24) | (DID_OK << 16) | 2);
+							}
+						else
+							OpDone (padapter, DID_OK << 16);	
+					}
+				}
+			}		
+		goto irq_return;
+		}
+	
+	if ( !padapter->expectingIRQ || !(SCpnt || padapter->reconPhase) )
+		{
+		DEB(printk ("\npci2220i Unsolicited interrupt\n"));
+		STOP_HERE ();
+		goto irq_return;
+		}
+	padapter->expectingIRQ = 0;
+
+	if ( padapter->failinprog )
+		{
+		DEB (printk ("\npci2220i interrupt failover complete"));
+		padapter->failinprog = FALSE;
+		status = inb_p (padapter->regStatCmd);								// read the device status
+		if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+			{
+			DEB (printk ("\npci2220i: interrupt failover error from drive %X", status));
+			padapter->cmd = 0;
+			}
+		else
+			{
+			DEB (printk ("\npci2220i: restarting failed opertation."));
+			pdev->spigot = (padapter->survivor) ? pdev->spigots[1] : pdev->spigots[0];
+			del_timer (&padapter->timer);
+			if ( padapter->reconPhase )
+				OpDone (padapter, DID_OK << 16);
+			else
+				Pci2220i_QueueCommand (SCpnt, SCpnt->scsi_done);
+			goto irq_return;		
+			}
+		}
+
+	if ( padapter->reconPhase )
+		{
+		switch ( padapter->reconPhase )
+			{
+			case RECON_PHASE_MARKING:
+			case RECON_PHASE_LAST:
+				status = inb_p (padapter->regStatCmd);						// read the device status
+				del_timer (&padapter->timer);
+				if ( padapter->reconPhase == RECON_PHASE_LAST )
+					{
+					if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+						{
+						padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+						DEB (printk ("\npci2220i: FAILURE 10"));
+						if ( InitFailover (padapter, pdev) )
+							OpDone (padapter, DecodeError (padapter, status));
+						goto irq_return;
+						}
+					if ( WriteSignature (padapter, pdev, pdev->spigots[pdev->mirrorRecon], pdev->mirrorRecon) )
+						{
+						padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+						DEB (printk ("\npci2220i: FAILURE 11"));
+						if ( InitFailover (padapter, pdev) )
+							OpDone (padapter, DecodeError (padapter, status));
+						goto irq_return;
+						}
+					padapter->reconPhase = RECON_PHASE_END;	
+					goto irq_return;
+					}
+				OpDone (padapter, DID_OK << 16);
+				goto irq_return;
+
+			case RECON_PHASE_READY:
+				status = inb_p (padapter->regStatCmd);						// read the device status
+				if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+					{
+					del_timer (&padapter->timer);
+					OpDone (padapter, DecodeError (padapter, status));
+					goto irq_return;
+					}
+				SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon]);
+				if ( WaitDrq (padapter) )
+					{
+					del_timer (&padapter->timer);
+					padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+					DEB (printk ("\npci2220i: FAILURE 12"));
+					if ( InitFailover (padapter, pdev) )
+						OpDone (padapter, DecodeError (padapter, status));
+					goto irq_return;
+					}
+				SelectSpigot (padapter, pdev->spigot | SEL_COPY | padapter->bigD);
+				padapter->reconPhase = RECON_PHASE_COPY;
+				padapter->expectingIRQ = TRUE;
+				if ( padapter->timingPIO )
+					{
+					insw (padapter->regData, padapter->kBuffer, padapter->reconSize * (BYTES_PER_SECTOR / 2));
+					}
+				else
+					{
+					if ( (padapter->timingMode > 3) )
+						{
+						if ( padapter->bigD )
+							outl (BIGD_DATA_MODE3, padapter->regDmaAddrLoc);
+						else
+							outl (DALE_DATA_MODE3, padapter->regDmaAddrLoc);
+						}
+					else
+						outl (padapter->timingAddress, padapter->regDmaAddrLoc);
+					outl (padapter->kBufferDma, padapter->regDmaAddrPci);
+					outl (padapter->reconSize * BYTES_PER_SECTOR, padapter->regDmaCount);
+					outb_p (8, padapter->regDmaDesc);						// read operation
+					if ( padapter->bigD )
+						outb_p (8, padapter->regDmaMode);					// no interrupt
+					else
+						outb_p (1, padapter->regDmaMode);					// no interrupt
+					outb_p (0x03, padapter->regDmaCmdStat);					// kick the DMA engine in gear
+					}
+				goto irq_return;
+
+			case RECON_PHASE_COPY:
+				pdev->DiskMirror[pdev->mirrorRecon].reconstructPoint += padapter->reconSize;
+
+			case RECON_PHASE_UPDATE:
+				SelectSpigot (padapter, pdev->spigots[pdev->mirrorRecon] | SEL_IRQ_OFF);
+				status = inb_p (padapter->regStatCmd);						// read the device status
+				del_timer (&padapter->timer);
+				if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+					{
+					padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+					DEB (printk ("\npci2220i: FAILURE 13"));
+					DEB (printk ("\n  status register = %X   error = %X", status, inb_p (padapter->regError)));
+					if ( InitFailover (padapter, pdev) )
+						OpDone (padapter, DecodeError (padapter, status));
+					goto irq_return;
+					}
+				OpDone (padapter, DID_OK << 16);
+				goto irq_return;
+
+			case RECON_PHASE_END:
+				status = inb_p (padapter->regStatCmd);						// read the device status
+				del_timer (&padapter->timer);
+				if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+					{
+					padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 0 : 1;
+					DEB (printk ("\npci2220i: FAILURE 14"));
+					if ( InitFailover (padapter, pdev) )
+						OpDone (padapter, DecodeError (padapter, status));
+					goto irq_return;
+					}
+				pdev->reconOn = 0;
+				if ( padapter->bigD )
+					{
+					for ( z = 0;  z < padapter->numberOfDrives;  z++ )
+						{
+						if ( padapter->device[z].DiskMirror[0].status & UCBF_SURVIVOR )
+							{
+							Alarm (padapter, padapter->device[z].deviceID[0] ^ 2);
+							MuteAlarm (padapter);
+							}
+						if ( padapter->device[z].DiskMirror[1].status & UCBF_SURVIVOR )
+							{
+							Alarm (padapter, padapter->device[z].deviceID[1] ^ 2);
+							MuteAlarm (padapter);
+							}
+						}
+					}
+				OpDone (padapter, DID_OK << 16);
+				goto irq_return;
+
+			default:
+				goto irq_return;
+			}
+		}
+		
+	switch ( padapter->cmd )												// decide how to handle the interrupt
+		{
+		case READ_CMD:
+			if ( padapter->sectorCount )
+				{
+				status = inb_p (padapter->regStatCmd);						// read the device status
+				if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+					{
+					if ( pdev->raid )
+						{
+						padapter->survivor = ( pdev->spigot == pdev->spigots[0] ) ? 1 : 0;
+						del_timer (&padapter->timer);
+						DEB (printk ("\npci2220i: FAILURE 15"));
+						if ( !InitFailover (padapter, pdev) )
+							goto irq_return;
+						}
+					break;	
+					}
+				if ( padapter->timingPIO )
+					{
+					insw (padapter->regData, padapter->kBuffer, padapter->readCount / 2);
+					padapter->sectorCount -= padapter->readCount / BYTES_PER_SECTOR;
+					WalkScatGath (padapter, TRUE, padapter->readCount);
+					if ( !padapter->sectorCount )
+						{
+						status = 0;
+						break;
+						}
+					}
+				else
+					{
+					if ( padapter->readCount )
+						WalkScatGath (padapter, TRUE, padapter->readCount);
+					BusMaster (padapter, 1, 1);
+					}
+				padapter->expectingIRQ = TRUE;
+				goto irq_return;
+				}
+			if ( padapter->readCount && !padapter->timingPIO )
+				WalkScatGath (padapter, TRUE, padapter->readCount);
+			status = 0;
+			break;
+
+		case WRITE_CMD:
+			if ( pdev->raid )
+				{
+				SelectSpigot (padapter, pdev->spigots[0] | SEL_IRQ_OFF);				
+				status = inb_p (padapter->regStatCmd);								// read the device status
+				SelectSpigot (padapter, pdev->spigots[1] | SEL_IRQ_OFF);				
+				status1 = inb_p (padapter->regStatCmd);								// read the device status
+				}
+			else
+				SelectSpigot (padapter, pdev->spigot | SEL_IRQ_OFF);				
+				status = inb_p (padapter->regStatCmd);								// read the device status
+				status1 = 0;
+		
+			if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+				{	
+				if ( pdev->raid && !(status1 & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT)) )
+					{
+					padapter->survivor = 1;
+					del_timer (&padapter->timer);
+					SelectSpigot (padapter, pdev->spigot | SEL_IRQ_OFF);
+					DEB (printk ("\npci2220i: FAILURE 16  status = %X  error = %X", status, inb_p (padapter->regError)));
+					if ( !InitFailover (padapter, pdev) )
+						goto irq_return;
+					}
+				break;
+				}
+			if ( pdev->raid )
+				{
+				if ( status1 & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+					{	
+					padapter->survivor = 0;
+					del_timer (&padapter->timer);
+					DEB (printk ("\npci2220i: FAILURE 17  status = %X  error = %X", status1, inb_p (padapter->regError)));
+					if ( !InitFailover (padapter, pdev) )
+						goto irq_return;
+					status = status1;
+					break;
+					}
+				if ( padapter->sectorCount )
+					{
+					status = WriteDataBoth (padapter, pdev);
+					if ( status )
+						{
+						padapter->survivor = status >> 1;
+						del_timer (&padapter->timer);
+						DEB (printk ("\npci2220i: FAILURE 18"));
+						if ( !InitFailover (padapter, pdev) )
+							goto irq_return;
+						SelectSpigot (padapter, pdev->spigots[status] | SEL_IRQ_OFF);				
+						status = inb_p (padapter->regStatCmd);								// read the device status
+						break;
+						}
+					padapter->expectingIRQ = TRUE;
+					goto irq_return;
+					}
+				status = 0;
+				break;
+				}
+			if ( padapter->sectorCount )	
+				{	
+				SelectSpigot (padapter, pdev->spigot | padapter->bigD);
+				status = WriteData (padapter);
+				if ( status )
+					break;
+				padapter->expectingIRQ = TRUE;
+				goto irq_return;
+				}
+			status = 0;
+			break;
+
+		case IDE_COMMAND_IDENTIFY:
+			{
+			PINQUIRYDATA	pinquiryData  = SCpnt->request_buffer;
+			PIDENTIFY_DATA	pid = (PIDENTIFY_DATA)padapter->kBuffer;
+
+			status = inb_p (padapter->regStatCmd);
+			if ( status & IDE_STATUS_DRQ )
+				{
+				insw (padapter->regData, pid, sizeof (IDENTIFY_DATA) >> 1);
+
+				memset (pinquiryData, 0, SCpnt->request_bufflen);		// Zero INQUIRY data structure.
+				pinquiryData->DeviceType = 0;
+				pinquiryData->Versions = 2;
+				pinquiryData->AdditionalLength = 35 - 4;
+
+				// Fill in vendor identification fields.
+				for ( z = 0;  z < 20;  z += 2 )
+					{
+					pinquiryData->VendorId[z]	  = ((UCHAR *)pid->ModelNumber)[z + 1];
+					pinquiryData->VendorId[z + 1] = ((UCHAR *)pid->ModelNumber)[z];
+					}
+
+				// Initialize unused portion of product id.
+				for ( z = 0;  z < 4;  z++ )
+					pinquiryData->ProductId[12 + z] = ' ';
+
+				// Move firmware revision from IDENTIFY data to
+				// product revision in INQUIRY data.
+				for ( z = 0;  z < 4;  z += 2 )
+					{
+					pinquiryData->ProductRevisionLevel[z]	 = ((UCHAR *)pid->FirmwareRevision)[z + 1];
+					pinquiryData->ProductRevisionLevel[z + 1] = ((UCHAR *)pid->FirmwareRevision)[z];
+					}
+				if ( pdev == padapter->device )
+					*((USHORT *)(&pinquiryData->VendorSpecific)) = DEVICE_DALE_1;
+				
+				status = 0;
+				}
+			break;
+			}
+
+		default:
+			status = 0;
+			break;
+		}
+
+	del_timer (&padapter->timer);
+	if ( status )
+		{
+		DEB (printk ("\npci2220i Interrupt handler return error"));
+		zl = DecodeError (padapter, status);
+		}
+	else
+		zl = DID_OK << 16;
+
+	OpDone (padapter, zl);
+irq_return:
+    spin_unlock_irqrestore(shost->host_lock, flags);
+out:
+	return IRQ_RETVAL(handled);
+}
+
+/****************************************************************
+ *	Name:	Pci2220i_QueueCommand
+ *
+ *	Description:	Process a queued command from the SCSI manager.
+ *
+ *	Parameters:		SCpnt - Pointer to SCSI command structure.
+ *					done  - Pointer to done function to call.
+ *
+ *	Returns:		Status code.
+ *
+ ****************************************************************/
+int Pci2220i_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
+	{
+	UCHAR		   *cdb = (UCHAR *)SCpnt->cmnd;					// Pointer to SCSI CDB
+	PADAPTER2220I	padapter = HOSTDATA(SCpnt->device->host);			// Pointer to adapter control structure
+	POUR_DEVICE		pdev	 = &padapter->device[SCpnt->device->id];// Pointer to device information
+	UCHAR			rc;											// command return code
+	int				z; 
+	PDEVICE_RAID1	pdr;
+
+	SCpnt->scsi_done = done;
+	padapter->SCpnt = SCpnt;  									// Save this command data
+	padapter->readCount = 0;
+
+	if ( SCpnt->use_sg )
+		{
+		padapter->currentSgBuffer = ((struct scatterlist *)SCpnt->request_buffer)[0].address;
+		padapter->currentSgCount = ((struct scatterlist *)SCpnt->request_buffer)[0].length;
+		}
+	else
+		{
+		padapter->currentSgBuffer = SCpnt->request_buffer;
+		padapter->currentSgCount = SCpnt->request_bufflen;
+		}
+	padapter->nextSg = 1;
+
+	if ( !done )
+		{
+		printk("pci2220i_queuecommand: %02X: done can't be NULL\n", *cdb);
+		return 0;
+		}
+	
+	if ( padapter->atapi )
+		{
+		UCHAR			zlo, zhi;
+
+		DEB (printk ("\nPCI2242I: ID %d, LUN %d opcode %X ", SCpnt->device->id, SCpnt->device->lun, *cdb));
+		padapter->pdev = pdev;
+		if ( !pdev->byte6 || SCpnt->device->lun )
+			{
+			OpDone (padapter, DID_BAD_TARGET << 16);
+			return 0;
+			}
+	
+		padapter->atapiSpecial = FALSE;
+		padapter->reqSense = FALSE;
+		memset (padapter->atapiCdb, 0, 16);
+		SelectSpigot (padapter, pdev->spigot);									// select the spigot
+		AtapiDevice (padapter, pdev->byte6);									// select the drive
+		if ( AtapiWaitReady (padapter, 100) )
+			{
+			OpDone (padapter, DID_NO_CONNECT << 16);
+			return 0;
+			}
+
+		switch ( cdb[0] ) 
+			{
+			case SCSIOP_MODE_SENSE:
+			case SCSIOP_MODE_SELECT:
+				Scsi2Atapi (padapter, SCpnt);
+				z = SCpnt->request_bufflen + 4;
+				break;
+			case SCSIOP_READ6:
+			case SCSIOP_WRITE6:
+				Scsi2Atapi (padapter, SCpnt);
+				z = SCpnt->request_bufflen;
+				break;
+			default:
+				memcpy (padapter->atapiCdb, cdb, SCpnt->cmd_len);
+				z = SCpnt->request_bufflen;
+				break;
+			}
+		if ( z > ATAPI_TRANSFER )
+			z = ATAPI_TRANSFER;
+	    zlo = (UCHAR)(z & 0xFF);
+	    zhi = (UCHAR)(z >> 8);
+
+	 	AtapiCountLo (padapter, zlo);						
+	   	AtapiCountHi (padapter, zhi);						
+	   	outb_p (0, padapter->regError);						
+		WriteCommand (padapter, IDE_COMMAND_ATAPI_PACKET);
+		if ( pdev->cmdDrqInt )
+			return 0;
+
+		if ( AtapiWaitDrq (padapter, 500) )
+			{
+			OpDone (padapter, DID_ERROR << 16);
+			return 0;
+			}
+		AtapiSendCdb (padapter, pdev, padapter->atapiCdb);	
+		return 0;
+		}
+	
+	if ( padapter->reconPhase )
+		return 0;
+	if ( padapter->reconTimer.data )
+		{
+		del_timer (&padapter->reconTimer);
+		padapter->reconTimer.data = 0;
+		}
+		
+	if ( (SCpnt->device->id >= padapter->numberOfDrives) || SCpnt->device->lun )
+		{
+		OpDone (padapter, DID_BAD_TARGET << 16);
+		return 0;
+		}
+	
+	switch ( *cdb )
+		{
+		case SCSIOP_INQUIRY:   					// inquiry CDB
+			{
+			if ( cdb[2] == SC_MY_RAID )
+				{
+				switch ( cdb[3] ) 
+					{
+					case MY_SCSI_REBUILD:
+						for ( z = 0;  z < padapter->numberOfDrives;  z++ )
+							{
+							pdev = &padapter->device[z];
+							if ( ((pdev->DiskMirror[0].status & UCBF_SURVIVOR) && (pdev->DiskMirror[1].status & UCBF_MIRRORED)) ||
+								 ((pdev->DiskMirror[1].status & UCBF_SURVIVOR) && (pdev->DiskMirror[0].status & UCBF_MIRRORED)) )
+								{
+								padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+								}
+							}
+						OpDone (padapter, DID_OK << 16);
+						break;
+					case MY_SCSI_ALARMMUTE:
+						MuteAlarm (padapter);
+						OpDone (padapter, DID_OK << 16);
+						break;
+					case MY_SCSI_DEMOFAIL:
+						padapter->demoFail = TRUE;				
+						OpDone (padapter, DID_OK << 16);
+						break;
+					default:
+						z = cdb[5];				// get index
+						pdr = (PDEVICE_RAID1)SCpnt->request_buffer;
+						if ( padapter->raidData[z] )
+							{
+							memcpy (&pdr->DiskRaid1, padapter->raidData[z], sizeof (DISK_MIRROR));
+							if ( padapter->raidData[z]->reconstructPoint > padapter->raidData[z ^ 2]->reconstructPoint )
+								pdr->TotalSectors = padapter->raidData[z]->reconstructPoint;
+							else
+								pdr->TotalSectors = padapter->raidData[z ^ 2]->reconstructPoint;
+							}
+						else
+							memset (pdr, 0, sizeof (DEVICE_RAID1));
+						OpDone (padapter, DID_OK << 16);
+						break;
+					}	
+				return 0;
+				}
+			padapter->cmd = IDE_COMMAND_IDENTIFY;
+			break;
+			}
+
+		case SCSIOP_TEST_UNIT_READY:			// test unit ready CDB
+			OpDone (padapter, DID_OK << 16);
+			return 0;
+		case SCSIOP_READ_CAPACITY:			  	// read capctiy CDB
+			{
+			PREAD_CAPACITY_DATA	pdata = (PREAD_CAPACITY_DATA)SCpnt->request_buffer;
+
+			pdata->blksiz = 0x20000;
+			XANY2SCSI ((UCHAR *)&pdata->blks, pdev->blocks);
+			OpDone (padapter, DID_OK << 16);
+			return 0;
+			}
+		case SCSIOP_VERIFY:						// verify CDB
+			padapter->startSector = XSCSI2LONG (&cdb[2]);
+			padapter->sectorCount = (UCHAR)((USHORT)cdb[8] | ((USHORT)cdb[7] << 8));
+			padapter->cmd = IDE_COMMAND_VERIFY;
+			break;
+		case SCSIOP_READ:						// read10 CDB
+			padapter->startSector = XSCSI2LONG (&cdb[2]);
+			padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+			padapter->cmd = READ_CMD;
+			break;
+		case SCSIOP_READ6:						// read6  CDB
+			padapter->startSector = SCSI2LONG (&cdb[1]);
+			padapter->sectorCount = cdb[4];
+			padapter->cmd = READ_CMD;
+			break;
+		case SCSIOP_WRITE:						// write10 CDB
+			padapter->startSector = XSCSI2LONG (&cdb[2]);
+			padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+			padapter->cmd = WRITE_CMD;
+			break;
+		case SCSIOP_WRITE6:						// write6  CDB
+			padapter->startSector = SCSI2LONG (&cdb[1]);
+			padapter->sectorCount = cdb[4];
+			padapter->cmd = WRITE_CMD;
+			break;
+		default:
+			DEB (printk ("pci2220i_queuecommand: Unsupported command %02X\n", *cdb));
+			OpDone (padapter, DID_ERROR << 16);
+			return 0;
+		}
+
+	if ( padapter->reconPhase )
+		return 0;
+	
+	padapter->pdev = pdev;
+
+	while ( padapter->demoFail )
+		{
+		pdev = padapter->pdev = &padapter->device[0];
+		padapter->demoFail = FALSE;
+		if ( !pdev->raid || 
+			 (pdev->DiskMirror[0].status & UCBF_SURVIVOR) || 
+			 (pdev->DiskMirror[1].status & UCBF_SURVIVOR) )
+			{
+			break;
+			}
+		if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+			padapter->survivor = 1;
+		else
+			padapter->survivor = 0;
+				DEB (printk ("\npci2220i: FAILURE 19"));
+		if ( InitFailover (padapter, pdev) )
+			break;
+		return 0;
+		}
+
+	StartTimer (padapter);
+	if ( pdev->raid && (padapter->cmd == WRITE_CMD) )
+		{
+		rc = IdeCmdBoth (padapter, pdev);
+		if ( !rc )
+			rc = WriteDataBoth (padapter, pdev);
+		if ( rc )
+			{
+			del_timer (&padapter->timer);
+			padapter->expectingIRQ = 0;
+			padapter->survivor = rc >> 1;
+				DEB (printk ("\npci2220i: FAILURE 20"));
+			if ( InitFailover (padapter, pdev) )
+				{
+				OpDone (padapter, DID_ERROR << 16);
+				return 0;
+				}
+			}
+		}
+	else
+		{
+		rc = IdeCmd (padapter, pdev);
+		if ( (padapter->cmd == WRITE_CMD) && !rc )
+			rc = WriteData (padapter);
+		if ( rc )
+			{
+			del_timer (&padapter->timer);
+			padapter->expectingIRQ = 0;
+			if ( pdev->raid )
+				{
+				padapter->survivor = (pdev->spigot ^ 3) >> 1;
+				DEB (printk ("\npci2220i: FAILURE 21"));
+				if ( !InitFailover (padapter, pdev) )
+					return 0;
+				}
+			OpDone (padapter, DID_ERROR << 16);
+			return 0;
+			}
+		}
+	return 0;
+	}
+/****************************************************************
+ *	Name:			ReadFlash
+ *
+ *	Description:	Read information from controller Flash memory.
+ *
+ *	Parameters:		padapter - Pointer to host interface data structure.
+ *					pdata	 - Pointer to data structures.
+ *					base	 - base address in Flash.
+ *					length	 - lenght of data space in bytes.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+static VOID ReadFlash (PADAPTER2220I padapter, VOID *pdata, ULONG base, ULONG length)
+	{
+	ULONG	 oldremap;
+	UCHAR	 olddesc;
+	ULONG	 z;
+	UCHAR	*pd = (UCHAR *)pdata;
+
+	oldremap = inl (padapter->regRemap);							// save values to restore later
+	olddesc  = inb_p (padapter->regDesc);
+
+	outl (base | 1, padapter->regRemap);							// remap to Flash space as specified
+	outb_p (0x40, padapter->regDesc);								// describe remap region as 8 bit
+	for ( z = 0;  z < length;  z++)									// get "length" data count
+		*pd++ = inb_p (padapter->regBase + z);						// read in the data
+
+	outl (oldremap, padapter->regRemap);							// restore remap register values
+	outb_p (olddesc, padapter->regDesc);
+	}
+/****************************************************************
+ *	Name:			GetRegs
+ *
+ *	Description:	Initialize the regester information.
+ *
+ *	Parameters:		pshost		  - Pointer to SCSI host data structure.
+ *					bigd		  - PCI-2240I identifier
+ *					pcidev		  - Pointer to device data structure.
+ *
+ *	Returns:		TRUE if failure to install.
+ *
+ ****************************************************************/
+static USHORT GetRegs (struct Scsi_Host *pshost, BOOL bigd, struct pci_dev *pcidev)
+	{
+	PADAPTER2220I	padapter;
+	int				setirq;
+	int				z;
+	USHORT			zr, zl;
+	UCHAR		   *consistent;
+	dma_addr_t		consistentDma;
+
+	padapter = HOSTDATA(pshost);
+	memset (padapter, 0, sizeof (ADAPTER2220I));
+	memset (&DaleSetup, 0, sizeof (DaleSetup));
+	memset (DiskMirror, 0, sizeof (DiskMirror));
+
+	zr = pci_resource_start (pcidev, 1);
+	zl = pci_resource_start (pcidev, 2);
+
+	padapter->basePort = zr;
+	padapter->regRemap		= zr + RTR_LOCAL_REMAP;					// 32 bit local space remap
+	padapter->regDesc		= zr + RTR_REGIONS;	  					// 32 bit local region descriptor
+	padapter->regRange		= zr + RTR_LOCAL_RANGE;					// 32 bit local range
+	padapter->regIrqControl	= zr + RTR_INT_CONTROL_STATUS;			// 16 bit interrupt control and status
+	padapter->regScratchPad	= zr + RTR_MAILBOX;	  					// 16 byte scratchpad I/O base address
+
+	padapter->regBase		= zl;
+	padapter->regData		= zl + REG_DATA;						// data register I/O address
+	padapter->regError		= zl + REG_ERROR;						// error register I/O address
+	padapter->regSectCount	= zl + REG_SECTOR_COUNT;				// sector count register I/O address
+	padapter->regLba0		= zl + REG_LBA_0;						// least significant byte of LBA
+	padapter->regLba8		= zl + REG_LBA_8;						// next least significant byte of LBA
+	padapter->regLba16		= zl + REG_LBA_16;						// next most significan byte of LBA
+	padapter->regLba24		= zl + REG_LBA_24;						// head and most 4 significant bits of LBA
+	padapter->regStatCmd	= zl + REG_STAT_CMD;					// status on read and command on write register
+	padapter->regStatSel	= zl + REG_STAT_SEL;					// board status on read and spigot select on write register
+	padapter->regFail		= zl + REG_FAIL;
+	padapter->regAltStat	= zl + REG_ALT_STAT;
+	padapter->pcidev		= pcidev;
+
+	if ( bigd )
+		{
+		padapter->regDmaDesc	= zr + RTR_DMA0_DESC_PTR;			// address of the DMA discriptor register for direction of transfer
+		padapter->regDmaCmdStat	= zr + RTR_DMA_COMMAND_STATUS;		// Byte #0 of DMA command status register
+		padapter->regDmaAddrPci	= zr + RTR_DMA0_PCI_ADDR;			// 32 bit register for PCI address of DMA
+		padapter->regDmaAddrLoc	= zr + RTR_DMA0_LOCAL_ADDR;			// 32 bit register for local bus address of DMA
+		padapter->regDmaCount	= zr + RTR_DMA0_COUNT;				// 32 bit register for DMA transfer count
+		padapter->regDmaMode	= zr + RTR_DMA0_MODE + 1;			// 32 bit register for DMA mode control
+		padapter->bigD			= SEL_NEW_SPEED_1;					// set spigot speed control bit
+		}
+	else
+		{
+		padapter->regDmaDesc	= zl + RTL_DMA1_DESC_PTR;			// address of the DMA discriptor register for direction of transfer
+		padapter->regDmaCmdStat	= zl + RTL_DMA_COMMAND_STATUS + 1;	// Byte #1 of DMA command status register
+		padapter->regDmaAddrPci	= zl + RTL_DMA1_PCI_ADDR;			// 32 bit register for PCI address of DMA
+		padapter->regDmaAddrLoc	= zl + RTL_DMA1_LOCAL_ADDR;			// 32 bit register for local bus address of DMA
+		padapter->regDmaCount	= zl + RTL_DMA1_COUNT;				// 32 bit register for DMA transfer count
+		padapter->regDmaMode	= zl + RTL_DMA1_MODE + 1;			// 32 bit register for DMA mode control
+		}
+
+	padapter->numberOfDrives = inb_p (padapter->regScratchPad + BIGD_NUM_DRIVES);
+	if ( !bigd && !padapter->numberOfDrives )						// if no devices on this board
+		return TRUE;
+
+	pshost->irq = pcidev->irq;
+	setirq = 1;
+	for ( z = 0;  z < Installed;  z++ )								// scan for shared interrupts
+		{
+		if ( PsiHost[z]->irq == pshost->irq )						// if shared then, don't posses
+			setirq = 0;
+		}
+	if ( setirq )													// if not shared, posses
+		{
+		if ( request_irq (pshost->irq, Irq_Handler, SA_SHIRQ, "pci2220i", padapter) < 0 )
+			{
+			if ( request_irq (pshost->irq, Irq_Handler, SA_INTERRUPT | SA_SHIRQ, "pci2220i", padapter) < 0 )
+				{
+				printk ("Unable to allocate IRQ for PCI-2220I controller.\n");
+				return TRUE;
+				}
+			}
+		padapter->irqOwned = pshost->irq;							// set IRQ as owned
+		}
+
+	if ( padapter->numberOfDrives )
+		consistent = pci_alloc_consistent (pcidev, SECTORSXFER * BYTES_PER_SECTOR, &consistentDma);
+	else
+		consistent = pci_alloc_consistent (pcidev, ATAPI_TRANSFER, &consistentDma);
+	if ( !consistent )
+		{
+		printk ("Unable to allocate DMA buffer for PCI-2220I controller.\n");
+		free_irq (pshost->irq, padapter);
+		return TRUE;
+		}
+	padapter->kBuffer = consistent;
+	padapter->kBufferDma = consistentDma;
+
+	PsiHost[Installed]	= pshost;									// save SCSI_HOST pointer
+	pshost->io_port		= padapter->basePort;
+	pshost->n_io_port	= 0xFF;
+	pshost->unique_id	= padapter->regBase;
+
+	outb_p (0x01, padapter->regRange);								// fix our range register because other drivers want to tromp on it
+
+	padapter->timingMode = inb_p (padapter->regScratchPad + DALE_TIMING_MODE);
+	if ( padapter->timingMode >= 2 )
+		{
+		if ( bigd )
+			padapter->timingAddress	= ModeArray2[padapter->timingMode - 2];
+		else
+			padapter->timingAddress	= ModeArray[padapter->timingMode - 2];
+		}
+	else
+		padapter->timingPIO = TRUE;
+
+	ReadFlash (padapter, &DaleSetup, DALE_FLASH_SETUP, sizeof (SETUP));
+	ReadFlash (padapter, &DiskMirror, DALE_FLASH_RAID, sizeof (DiskMirror));
+
+	return FALSE;
+	}
+/****************************************************************
+ *	Name:			SetupFinish
+ *
+ *	Description:	Complete the driver initialization process for a card
+ *
+ *	Parameters:		padapter  - Pointer to SCSI host data structure.
+ *					str		  - Pointer to board type string.
+ *
+ *	Returns:		Nothing.
+ *
+ ****************************************************************/
+VOID SetupFinish (PADAPTER2220I padapter, char *str, int irq)
+	{
+	init_timer (&padapter->timer);
+	padapter->timer.function = TimerExpiry;
+	padapter->timer.data = (unsigned long)padapter;
+	init_timer (&padapter->reconTimer);
+	padapter->reconTimer.function = ReconTimerExpiry;
+	padapter->reconTimer.data = (unsigned long)padapter;
+	printk("\nPCI-%sI EIDE CONTROLLER: at I/O = %lX/%lX  IRQ = %d\n", str, padapter->basePort, padapter->regBase, irq);
+	printk("Version %s, Compiled %s %s\n\n", PCI2220I_VERSION, __DATE__, __TIME__);
+	}	
+/****************************************************************
+ *	Name:	Pci2220i_Detect
+ *
+ *	Description:	Detect and initialize our boards.
+ *
+ *	Parameters:		tpnt - Pointer to SCSI host template structure.
+ *
+ *	Returns:		Number of adapters installed.
+ *
+ ****************************************************************/
+int Pci2220i_Detect (Scsi_Host_Template *tpnt)
+	{
+	struct Scsi_Host   *pshost;
+	PADAPTER2220I	    padapter;
+	POUR_DEVICE			pdev;
+	int					unit;
+	int					z;
+	USHORT				raidon;
+	UCHAR				spigot1, spigot2;
+	UCHAR				device;
+	struct pci_dev	   *pcidev = NULL;
+
+	while ( (pcidev = pci_find_device (VENDOR_PSI, DEVICE_DALE_1, pcidev)) != NULL )
+		{
+		if (pci_enable_device(pcidev))
+			continue;
+		pshost = scsi_register (tpnt, sizeof(ADAPTER2220I));
+		if(pshost==NULL)
+			continue;
+			
+		padapter = HOSTDATA(pshost);
+
+		if ( GetRegs (pshost, FALSE, pcidev) )
+			goto unregister;
+
+		scsi_set_device(pshost, &pcidev->dev);
+		pshost->max_id = padapter->numberOfDrives;
+		for ( z = 0;  z < padapter->numberOfDrives;  z++ )
+			{
+			unit = inb_p (padapter->regScratchPad + DALE_CHANNEL_DEVICE_0 + z) & 0x0F;
+			pdev = &padapter->device[z];
+			pdev->byte6		= (UCHAR)(((unit & 1) << 4) | 0xE0);
+			pdev->spigot	= (UCHAR)(1 << (unit >> 1));
+			pdev->sectors	= DaleSetup.setupDevice[unit].sectors;
+			pdev->heads		= DaleSetup.setupDevice[unit].heads;
+			pdev->cylinders = DaleSetup.setupDevice[unit].cylinders;
+			pdev->blocks	= DaleSetup.setupDevice[unit].blocks;
+
+			if ( !z )
+				{
+				DiskMirror[0].status = inb_p (padapter->regScratchPad + DALE_RAID_0_STATUS);		
+				DiskMirror[1].status = inb_p (padapter->regScratchPad + DALE_RAID_1_STATUS);		
+				if ( (DiskMirror[0].signature == SIGNATURE) && (DiskMirror[1].signature == SIGNATURE) &&
+				     (DiskMirror[0].pairIdentifier == (DiskMirror[1].pairIdentifier ^ 1)) )
+					{			 
+					raidon = TRUE;
+					if ( unit > (unit ^ 2) )
+						unit = unit ^ 2;
+					}	
+				else
+					raidon = FALSE;
+
+				memcpy (pdev->DiskMirror, DiskMirror, sizeof (DiskMirror));
+				padapter->raidData[0] = &pdev->DiskMirror[0];
+				padapter->raidData[2] = &pdev->DiskMirror[1];
+				
+				spigot1 = spigot2 = FALSE;
+				pdev->spigots[0] = 1;
+				pdev->spigots[1] = 2;
+				pdev->lastsectorlba[0] = InlineIdentify (padapter, 1, 0);
+				pdev->lastsectorlba[1] = InlineIdentify (padapter, 2, 0);
+						
+				if ( !(pdev->DiskMirror[1].status & UCBF_SURVIVOR) && pdev->lastsectorlba[0] )
+					spigot1 = TRUE;
+				if ( !(pdev->DiskMirror[0].status & UCBF_SURVIVOR) && pdev->lastsectorlba[1] )
+					spigot2 = TRUE;
+				if ( pdev->DiskMirror[0].status & DiskMirror[1].status & UCBF_SURVIVOR )
+					spigot1 = TRUE;
+
+				if ( spigot1 && (pdev->DiskMirror[0].status & UCBF_REBUILD) )
+					InlineReadSignature (padapter, pdev, 0);
+				if ( spigot2 && (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+					InlineReadSignature (padapter, pdev, 1);
+
+				if ( spigot1 && spigot2 && raidon )
+					{
+					pdev->raid = 1;
+					if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+						pdev->spigot = 2;
+					else
+						pdev->spigot = 1;
+					if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+						padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+					}
+				else
+					{
+					if ( spigot1 )
+						{
+						if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+							goto unregister;
+						pdev->DiskMirror[0].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+						pdev->spigot = 1;
+						}
+					else
+						{
+						if ( pdev->DiskMirror[1].status & UCBF_REBUILD )
+							goto unregister;
+						pdev->DiskMirror[1].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+						pdev->spigot = 2;
+						}
+					if ( DaleSetup.rebootRebuild && raidon )
+						padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+					}
+			
+				if ( raidon )
+					break;
+				}
+			}
+
+		SetupFinish (padapter, "2220", pshost->irq);
+	
+		if ( ++Installed < MAXADAPTER )
+			continue;
+		break;
+unregister:;
+		scsi_unregister (pshost);
+		}
+
+	while ( (pcidev = pci_find_device (VENDOR_PSI, DEVICE_BIGD_1, pcidev)) != NULL )
+		{
+		pshost = scsi_register (tpnt, sizeof(ADAPTER2220I));
+		padapter = HOSTDATA(pshost);
+
+		if ( GetRegs (pshost, TRUE, pcidev) )
+			goto unregister1;
+
+		for ( z = 0;  z < BIGD_MAXDRIVES;  z++ )
+			DiskMirror[z].status = inb_p (padapter->regScratchPad + BIGD_RAID_0_STATUS + z);		
+
+		scsi_set_pci_device(pshost, pcidev);
+		pshost->max_id = padapter->numberOfDrives;
+		padapter->failRegister = inb_p (padapter->regScratchPad + BIGD_ALARM_IMAGE);
+		for ( z = 0;  z < padapter->numberOfDrives;  z++ )
+			{
+			unit = inb_p (padapter->regScratchPad + BIGD_DEVICE_0 + z);
+			pdev = &padapter->device[z];
+			pdev->byte6		= (UCHAR)(((unit & 1) << 4) | 0xE0);
+			pdev->spigot	= (UCHAR)(1 << (unit >> 1));
+			pdev->sectors	= DaleSetup.setupDevice[unit].sectors;
+			pdev->heads		= DaleSetup.setupDevice[unit].heads;
+			pdev->cylinders = DaleSetup.setupDevice[unit].cylinders;
+			pdev->blocks	= DaleSetup.setupDevice[unit].blocks;
+			
+			if ( (DiskMirror[unit].signature == SIGNATURE) && (DiskMirror[unit ^ 2].signature == SIGNATURE) &&
+			     (DiskMirror[unit].pairIdentifier == (DiskMirror[unit ^ 2].pairIdentifier ^ 1)) )
+				{			 
+				raidon = TRUE;
+				if ( unit > (unit ^ 2) )
+					unit = unit ^ 2;
+				}	
+			else
+				raidon = FALSE;
+				
+			spigot1 = spigot2 = FALSE;
+			memcpy (&pdev->DiskMirror[0], &DiskMirror[unit], sizeof (DISK_MIRROR));
+			memcpy (&pdev->DiskMirror[1], &DiskMirror[unit ^ 2], sizeof (DISK_MIRROR));
+			padapter->raidData[unit]	 = &pdev->DiskMirror[0];
+			padapter->raidData[unit ^ 2] = &pdev->DiskMirror[1];
+			pdev->spigots[0] = 1 << (unit >> 1);
+			pdev->spigots[1] = 1 << ((unit ^ 2) >> 1);
+			pdev->deviceID[0] = unit;
+			pdev->deviceID[1] = unit ^ 2;
+			pdev->lastsectorlba[0] = InlineIdentify (padapter, pdev->spigots[0], unit & 1);
+			pdev->lastsectorlba[1] = InlineIdentify (padapter, pdev->spigots[1], unit & 1);
+
+			if ( !(pdev->DiskMirror[1].status & UCBF_SURVIVOR) && pdev->lastsectorlba[0] )
+				spigot1 = TRUE;
+			if ( !(pdev->DiskMirror[0].status & UCBF_SURVIVOR) && pdev->lastsectorlba[1] )
+				spigot2 = TRUE;
+			if ( pdev->DiskMirror[0].status & pdev->DiskMirror[1].status & UCBF_SURVIVOR )
+				spigot1 = TRUE;
+
+			if ( spigot1 && (pdev->DiskMirror[0].status & UCBF_REBUILD) )
+				InlineReadSignature (padapter, pdev, 0);
+			if ( spigot2 && (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+				InlineReadSignature (padapter, pdev, 1);
+
+			if ( spigot1 && spigot2 && raidon )
+				{
+				pdev->raid = 1;
+				if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+					pdev->spigot = pdev->spigots[1];
+				else
+					pdev->spigot = pdev->spigots[0];
+				if ( (pdev->DiskMirror[0].status & UCBF_REBUILD) || (pdev->DiskMirror[1].status & UCBF_REBUILD) )
+					padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+				}
+			else
+				{
+				if ( spigot1 )
+					{
+					if ( pdev->DiskMirror[0].status & UCBF_REBUILD )
+						goto unregister1;
+					pdev->DiskMirror[0].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+					pdev->spigot = pdev->spigots[0];
+					}
+				else
+					{
+					if ( pdev->DiskMirror[1].status & UCBF_REBUILD )
+						goto unregister;
+					pdev->DiskMirror[1].status = UCBF_MIRRORED | UCBF_SURVIVOR;
+					pdev->spigot = pdev->spigots[1];
+					}
+				if ( DaleSetup.rebootRebuild && raidon )
+					padapter->reconOn = pdev->reconOn = pdev->reconIsStarting = TRUE;
+				}
+			}
+		
+		if ( !padapter->numberOfDrives )									// If no ATA devices then scan ATAPI
+			{
+			unit = 0;
+			for ( spigot1 = 0;  spigot1 < 4;  spigot1++ )
+				{
+				for ( device = 0;  device < 2;  device++ )
+					{
+					DEB (printk ("\nPCI2242I: scanning for ID %d ", (spigot1 * 2) + device));
+					pdev = &(padapter->device[(spigot1 * 2) + device]);
+					pdev->byte6 = 0x0A | (device << 4);
+					pdev->spigot = 1 << spigot1;
+					if ( !AtapiReset (padapter, pdev) )
+						{
+						DEB (printk (" Device found "));
+						if ( !AtapiIdentify (padapter, pdev) )
+							{
+							DEB (printk (" Device verified"));
+							unit++;
+							continue;
+							}
+						}
+					pdev->spigot = pdev->byte6 = 0;
+					}
+				}
+
+			if ( unit )
+				{
+				padapter->atapi = TRUE;
+				padapter->timingAddress = DALE_DATA_MODE3;
+				outw_p (0x0900, padapter->regIrqControl);					// Turn our interrupts on
+				outw_p (0x0C41, padapter->regDmaMode - 1);					// setup for 16 bits, ready enabled, done IRQ enabled, no incriment
+				outb_p (0xFF, padapter->regFail);							// all fail lights and alarm off
+				pshost->max_id = 8;
+				}
+			}
+		SetupFinish (padapter, "2240", pshost->irq);
+		
+		if ( ++Installed < MAXADAPTER )
+			continue;
+		break;
+unregister1:;
+		scsi_unregister (pshost);
+		}
+
+	NumAdapters = Installed;
+	return Installed;
+	}
+/****************************************************************
+ *	Name:	Pci2220i_Abort
+ *
+ *	Description:	Process the Abort command from the SCSI manager.
+ *
+ *	Parameters:		SCpnt - Pointer to SCSI command structure.
+ *
+ *	Returns:		Allways snooze.
+ *
+ ****************************************************************/
+int Pci2220i_Abort (Scsi_Cmnd *SCpnt)
+	{
+	PADAPTER2220I	padapter = HOSTDATA(SCpnt->device->host);			// Pointer to adapter control structure
+	POUR_DEVICE		pdev	 = &padapter->device[SCpnt->device->id];// Pointer to device information
+
+	if ( !padapter->SCpnt )
+		return SCSI_ABORT_NOT_RUNNING;
+	
+	if ( padapter->atapi )
+		{
+		if ( AtapiReset (padapter, pdev) )
+			return SCSI_ABORT_ERROR;
+		OpDone (padapter, DID_ABORT << 16);
+		return SCSI_ABORT_SUCCESS;
+		}
+	return SCSI_ABORT_SNOOZE;
+	}
+/****************************************************************
+ *	Name:	Pci2220i_Reset
+ *
+ *	Description:	Process the Reset command from the SCSI manager.
+ *
+ *	Parameters:		SCpnt - Pointer to SCSI command structure.
+ *					flags - Flags about the reset command
+ *
+ *	Returns:		No active command at this time, so this means
+ *					that each time we got some kind of response the
+ *					last time through.  Tell the mid-level code to
+ *					request sense information in order to decide what
+ *					to do next.
+ *
+ ****************************************************************/
+int Pci2220i_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
+	{
+	PADAPTER2220I	padapter = HOSTDATA(SCpnt->device->host);			// Pointer to adapter control structure
+	POUR_DEVICE		pdev	 = &padapter->device[SCpnt->device->id];// Pointer to device information
+
+	if ( padapter->atapi )
+		{
+		if ( AtapiReset (padapter, pdev) )
+			return SCSI_RESET_ERROR;
+		return SCSI_RESET_SUCCESS;
+		}
+	return SCSI_RESET_PUNT;
+	}
+/****************************************************************
+ *	Name:	Pci2220i_Release
+ *
+ *	Description:	Release resources allocated for a single each adapter.
+ *
+ *	Parameters:		pshost - Pointer to SCSI command structure.
+ *
+ *	Returns:		zero.
+ *
+ ****************************************************************/
+int Pci2220i_Release (struct Scsi_Host *pshost)
+	{
+    PADAPTER2220I	padapter = HOSTDATA (pshost);
+	USHORT			z;
+
+	if ( padapter->reconOn )
+		{
+		padapter->reconOn = FALSE;						// shut down the hot reconstruct
+		if ( padapter->reconPhase )
+			mdelay (300);
+		if ( padapter->reconTimer.data )				// is the timer running?
+			{
+			del_timer (&padapter->reconTimer);
+			padapter->reconTimer.data = 0;
+			}
+		}
+
+	// save RAID status on the board
+	if ( padapter->bigD )
+		{
+		outb_p (padapter->failRegister, padapter->regScratchPad + BIGD_ALARM_IMAGE);
+		for ( z = 0;  z < BIGD_MAXDRIVES;  z++ )
+			{
+			if ( padapter->raidData )
+				outb_p (padapter->raidData[z]->status, padapter->regScratchPad + BIGD_RAID_0_STATUS + z);	
+			else
+				outb_p (0, padapter->regScratchPad + BIGD_RAID_0_STATUS);	
+			}
+		}
+	else
+		{
+		outb_p (padapter->device[0].DiskMirror[0].status, padapter->regScratchPad + DALE_RAID_0_STATUS);		
+		outb_p (padapter->device[0].DiskMirror[1].status, padapter->regScratchPad + DALE_RAID_1_STATUS);		
+		}
+
+	if ( padapter->irqOwned )
+		free_irq (pshost->irq, padapter);
+    release_region (pshost->io_port, pshost->n_io_port);
+	if ( padapter->numberOfDrives )
+		pci_free_consistent (padapter->pcidev, SECTORSXFER * BYTES_PER_SECTOR, padapter->kBuffer, padapter->kBufferDma);
+	else	
+		pci_free_consistent (padapter->pcidev, ATAPI_TRANSFER, padapter->kBuffer, padapter->kBufferDma);
+    scsi_unregister(pshost);
+    return 0;
+	}
+
+/****************************************************************
+ *	Name:	Pci2220i_BiosParam
+ *
+ *	Description:	Process the biosparam request from the SCSI manager to
+ *					return C/H/S data.
+ *
+ *	Parameters:		disk - Pointer to SCSI disk structure.
+ *					dev	 - Major/minor number from kernel.
+ *					geom - Pointer to integer array to place geometry data.
+ *
+ *	Returns:		zero.
+ *
+ ****************************************************************/
+int Pci2220i_BiosParam (struct scsi_device *sdev, struct block_device *dev,
+		sector_t capacity, int geom[])
+	{
+	POUR_DEVICE	pdev;
+
+	if ( !(HOSTDATA(sdev->host))->atapi )
+		{
+		pdev = &(HOSTDATA(sdev->host)->device[sdev->id]);
+
+		geom[0] = pdev->heads;
+		geom[1] = pdev->sectors;
+		geom[2] = pdev->cylinders;
+		}
+	return 0;
+	}
+
+MODULE_LICENSE("Dual BSD/GPL");
+
+static Scsi_Host_Template driver_template = {
+	.proc_name		= "pci2220i",
+	.name			= "PCI-2220I/PCI-2240I",
+	.detect			= Pci2220i_Detect,
+	.release		= Pci2220i_Release,
+	.queuecommand		= Pci2220i_QueueCommand,
+	.abort			= Pci2220i_Abort,
+	.reset			= Pci2220i_Reset,
+	.bios_param		= Pci2220i_BiosParam,
+	.can_queue		= 1,
+	.this_id		= -1,
+	.sg_tablesize		= SG_ALL,
+	.cmd_per_lun		= 1,
+	.use_clustering		= DISABLE_CLUSTERING,
+};
+#include "scsi_module.c"