Linux-2.6.12-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, 685 insertions, 0 deletions

diff --git a/drivers/scsi/psi240i.c b/drivers/scsi/psi240i.c
new file mode 100644
index 0000000..0f576d4
--- /dev/null
+++ b/drivers/scsi/psi240i.c
@@ -0,0 +1,685 @@
+/*+M*************************************************************************
+ * Perceptive Solutions, Inc. PSI-240I device driver proc support for Linux.
+ *
+ * Copyright (c) 1997 Perceptive Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ *	File Name:		psi240i.c
+ *
+ *	Description:	SCSI driver for the PSI240I EIDE interface card.
+ *
+ *-M*************************************************************************/
+
+#include <linux/module.h>
+
+#include <linux/blkdev.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/proc_fs.h>
+#include <linux/spinlock.h>
+#include <linux/stat.h>
+
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+
+#include "psi240i.h"
+#include "psi_chip.h"
+
+//#define DEBUG 1
+
+#ifdef DEBUG
+#define DEB(x) x
+#else
+#define DEB(x)
+#endif
+
+#define MAXBOARDS 6	/* Increase this and the sizes of the arrays below, if you need more. */
+
+#define	PORT_DATA				0
+#define	PORT_ERROR				1
+#define	PORT_SECTOR_COUNT		2
+#define	PORT_LBA_0				3
+#define	PORT_LBA_8				4
+#define	PORT_LBA_16				5
+#define	PORT_LBA_24				6
+#define	PORT_STAT_CMD			7
+#define	PORT_SEL_FAIL			8
+#define	PORT_IRQ_STATUS			9
+#define	PORT_ADDRESS			10
+#define	PORT_FAIL				11
+#define	PORT_ALT_STAT		   	12
+
+typedef struct
+	{
+	UCHAR		   	device;				// device code
+	UCHAR			byte6;				// device select register image
+	UCHAR			spigot;				// spigot number
+	UCHAR			expectingIRQ;		// flag for expecting and interrupt
+	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
+	}	OUR_DEVICE, *POUR_DEVICE;
+
+typedef struct
+	{
+	USHORT		 ports[13];
+	OUR_DEVICE	 device[8];
+	Scsi_Cmnd	*pSCmnd;
+	IDE_STRUCT	 ide;
+	ULONG		 startSector;
+	USHORT		 sectorCount;
+	Scsi_Cmnd	*SCpnt;
+	VOID		*buffer;
+	USHORT		 expectingIRQ;
+	}	ADAPTER240I, *PADAPTER240I;
+
+#define HOSTDATA(host) ((PADAPTER240I)&host->hostdata)
+
+static struct	Scsi_Host *PsiHost[6] = {NULL,};  /* One for each IRQ level (10-15) */
+static			IDENTIFY_DATA	identifyData;
+static			SETUP			ChipSetup;
+
+static	USHORT	portAddr[6] = {CHIP_ADRS_0, CHIP_ADRS_1, CHIP_ADRS_2, CHIP_ADRS_3, CHIP_ADRS_4, CHIP_ADRS_5};
+
+/****************************************************************
+ *	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 (PADAPTER240I padapter)
+	{
+	ULONG	timer;
+	USHORT *pports = padapter->ports;
+
+	timer = jiffies + TIMEOUT_DRQ;								// calculate the timeout value
+	do  {
+		if ( inb_p (pports[PORT_STAT_CMD]) & IDE_STATUS_DRQ )
+			{
+			outsw (pports[PORT_DATA], padapter->buffer, (USHORT)padapter->ide.ide.ide[2] * 256);
+			return 0;
+			}
+		}	while ( time_after(timer, jiffies) );									// test for timeout
+
+	padapter->ide.ide.ides.cmd = 0;									// null out the command byte
+	return 1;
+	}
+/****************************************************************
+ *	Name:	IdeCmd	:LOCAL
+ *
+ *	Description:	Process a queued command from the SCSI manager.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *
+ *	Returns:		Zero if no error or status register contents on error.
+ *
+ ****************************************************************/
+static UCHAR IdeCmd (PADAPTER240I padapter)
+	{
+	ULONG	timer;
+	USHORT *pports = padapter->ports;
+	UCHAR	status;
+
+	outb_p (padapter->ide.ide.ides.spigot, pports[PORT_SEL_FAIL]);	// select the spigot
+	outb_p (padapter->ide.ide.ide[6], pports[PORT_LBA_24]);			// select the drive
+	timer = jiffies + TIMEOUT_READY;							// calculate the timeout value
+	do  {
+		status = inb_p (padapter->ports[PORT_STAT_CMD]);
+		if ( status & IDE_STATUS_DRDY )
+			{
+			outb_p (padapter->ide.ide.ide[2], pports[PORT_SECTOR_COUNT]);
+			outb_p (padapter->ide.ide.ide[3], pports[PORT_LBA_0]);
+			outb_p (padapter->ide.ide.ide[4], pports[PORT_LBA_8]);
+			outb_p (padapter->ide.ide.ide[5], pports[PORT_LBA_16]);
+			padapter->expectingIRQ = 1;
+			outb_p (padapter->ide.ide.ide[7], pports[PORT_STAT_CMD]);
+
+			if ( padapter->ide.ide.ides.cmd == IDE_CMD_WRITE_MULTIPLE )
+				return (WriteData (padapter));
+
+			return 0;
+			}
+		}	while ( time_after(timer, jiffies) );									// test for timeout
+
+	padapter->ide.ide.ides.cmd = 0;									// null out the command byte
+	return status;
+	}
+/****************************************************************
+ *	Name:	SetupTransfer	:LOCAL
+ *
+ *	Description:	Setup a data transfer command.
+ *
+ *	Parameters:		padapter - Pointer adapter data structure.
+ *					drive	 - Drive/head register upper nibble only.
+ *
+ *	Returns:		TRUE if no data to transfer.
+ *
+ ****************************************************************/
+static int SetupTransfer (PADAPTER240I padapter, UCHAR drive)
+	{
+	if ( padapter->sectorCount )
+		{
+		*(ULONG *)padapter->ide.ide.ides.lba = padapter->startSector;
+		padapter->ide.ide.ide[6] |= drive;
+		padapter->ide.ide.ides.sectors = ( padapter->sectorCount > SECTORSXFER ) ? SECTORSXFER : padapter->sectorCount;
+		padapter->sectorCount -= padapter->ide.ide.ides.sectors;	// bump the start and count for next xfer
+		padapter->startSector += padapter->ide.ide.ides.sectors;
+		return 0;
+		}
+	else
+		{
+		padapter->ide.ide.ides.cmd = 0;								// null out the command byte
+		padapter->SCpnt = NULL;
+		return 1;
+		}
+	}
+/****************************************************************
+ *	Name:	DecodeError	:LOCAL
+ *
+ *	Description:	Decode and process device errors.
+ *
+ *	Parameters:		pshost - Pointer to host data block.
+ *					status - Status register code.
+ *
+ *	Returns:		The driver status code.
+ *
+ ****************************************************************/
+static ULONG DecodeError (struct Scsi_Host *pshost, UCHAR status)
+	{
+	PADAPTER240I	padapter = HOSTDATA(pshost);
+	UCHAR			error;
+
+	padapter->expectingIRQ = 0;
+	padapter->SCpnt = NULL;
+	if ( status & IDE_STATUS_WRITE_FAULT )
+		{
+		return DID_PARITY << 16;
+		}
+	if ( status & IDE_STATUS_BUSY )
+		return DID_BUS_BUSY << 16;
+
+	error = inb_p (padapter->ports[PORT_ERROR]);
+	DEB(printk ("\npsi240i 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:	Irq_Handler	:LOCAL
+ *
+ *	Description:	Interrupt handler.
+ *
+ *	Parameters:		irq		- Hardware IRQ number.
+ *					dev_id	-
+ *					regs	-
+ *
+ *	Returns:		TRUE if drive is not ready in time.
+ *
+ ****************************************************************/
+static void Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
+	{
+	struct Scsi_Host   *shost;			// Pointer to host data block
+	PADAPTER240I		padapter;		// Pointer to adapter control structure
+	USHORT		 	   *pports;			// I/O port array
+	Scsi_Cmnd		   *SCpnt;
+	UCHAR				status;
+	int					z;
+
+	DEB(printk ("\npsi240i received interrupt\n"));
+
+	shost = PsiHost[irq - 10];
+	if ( !shost )
+		panic ("Splunge!");
+
+	padapter = HOSTDATA(shost);
+	pports = padapter->ports;
+	SCpnt = padapter->SCpnt;
+
+	if ( !padapter->expectingIRQ )
+		{
+		DEB(printk ("\npsi240i Unsolicited interrupt\n"));
+		return;
+		}
+	padapter->expectingIRQ = 0;
+
+	status = inb_p (padapter->ports[PORT_STAT_CMD]);			// read the device status
+	if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
+		goto irqerror;
+
+	DEB(printk ("\npsi240i processing interrupt"));
+	switch ( padapter->ide.ide.ides.cmd )							// decide how to handle the interrupt
+		{
+		case IDE_CMD_READ_MULTIPLE:
+			if ( status & IDE_STATUS_DRQ )
+				{
+				insw (pports[PORT_DATA], padapter->buffer, (USHORT)padapter->ide.ide.ides.sectors * 256);
+				padapter->buffer += padapter->ide.ide.ides.sectors * 512;
+				if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
+					{
+					SCpnt->result = DID_OK << 16;
+					padapter->SCpnt = NULL;
+					SCpnt->scsi_done (SCpnt);
+					return;
+					}
+				if ( !(status = IdeCmd (padapter)) )
+					return;
+				}
+			break;
+
+		case IDE_CMD_WRITE_MULTIPLE:
+			padapter->buffer += padapter->ide.ide.ides.sectors * 512;
+			if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
+				{
+				SCpnt->result = DID_OK << 16;
+				padapter->SCpnt = NULL;
+				SCpnt->scsi_done (SCpnt);
+				return;
+				}
+			if ( !(status = IdeCmd (padapter)) )
+				return;
+			break;
+
+		case IDE_COMMAND_IDENTIFY:
+			{
+			PINQUIRYDATA	pinquiryData  = SCpnt->request_buffer;
+
+			if ( status & IDE_STATUS_DRQ )
+				{
+				insw (pports[PORT_DATA], &identifyData, sizeof (identifyData) >> 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 *)identifyData.ModelNumber)[z + 1];
+					pinquiryData->VendorId[z + 1] = ((UCHAR *)identifyData.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 *)identifyData.FirmwareRevision)[z + 1];
+					pinquiryData->ProductRevisionLevel[z + 1] = ((UCHAR *)identifyData.FirmwareRevision)[z];
+					}
+
+				SCpnt->result = DID_OK << 16;
+				padapter->SCpnt = NULL;
+				SCpnt->scsi_done (SCpnt);
+				return;
+				}
+			break;
+			}
+
+		default:
+			SCpnt->result = DID_OK << 16;
+			padapter->SCpnt = NULL;
+			SCpnt->scsi_done (SCpnt);
+			return;
+		}
+
+irqerror:;
+	DEB(printk ("\npsi240i error  Device Status: %X\n", status));
+	SCpnt->result = DecodeError (shost, status);
+	SCpnt->scsi_done (SCpnt);
+	}
+
+static irqreturn_t do_Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
+{
+	unsigned long flags;
+	struct Scsi_Host *dev = dev_id;
+	
+	spin_lock_irqsave(dev->host_lock, flags);
+	Irq_Handler(irq, dev_id, regs);
+	spin_unlock_irqrestore(dev->host_lock, flags);
+	return IRQ_HANDLED;
+}
+
+/****************************************************************
+ *	Name:	Psi240i_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.
+ *
+ ****************************************************************/
+static int Psi240i_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
+	{
+	UCHAR		   *cdb = (UCHAR *)SCpnt->cmnd;					// Pointer to SCSI CDB
+	PADAPTER240I	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
+
+	SCpnt->scsi_done = done;
+	padapter->ide.ide.ides.spigot = pdev->spigot;
+	padapter->buffer = SCpnt->request_buffer;
+	if (done)
+		{
+		if ( !pdev->device )
+			{
+			SCpnt->result = DID_BAD_TARGET << 16;
+			done (SCpnt);
+			return 0;
+			}
+		}
+	else
+		{
+		printk("psi240i_queuecommand: %02X: done can't be NULL\n", *cdb);
+		return 0;
+		}
+
+	switch ( *cdb )
+		{
+		case SCSIOP_INQUIRY:   					// inquiry CDB
+			{
+			padapter->ide.ide.ide[6] = pdev->byte6;
+			padapter->ide.ide.ides.cmd = IDE_COMMAND_IDENTIFY;
+			break;
+			}
+
+		case SCSIOP_TEST_UNIT_READY:			// test unit ready CDB
+			SCpnt->result = DID_OK << 16;
+			done (SCpnt);
+			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);
+			SCpnt->result = DID_OK << 16;
+			done (SCpnt);
+			return 0;
+			}
+
+		case SCSIOP_VERIFY:						// verify CDB
+			*(ULONG *)padapter->ide.ide.ides.lba = XSCSI2LONG (&cdb[2]);
+			padapter->ide.ide.ide[6] |= pdev->byte6;
+			padapter->ide.ide.ide[2] = (UCHAR)((USHORT)cdb[8] | ((USHORT)cdb[7] << 8));
+			padapter->ide.ide.ides.cmd = IDE_COMMAND_VERIFY;
+			break;
+
+		case SCSIOP_READ:						// read10 CDB
+			padapter->startSector = XSCSI2LONG (&cdb[2]);
+			padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+			SetupTransfer (padapter, pdev->byte6);
+			padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
+			break;
+
+		case SCSIOP_READ6:						// read6  CDB
+			padapter->startSector = SCSI2LONG (&cdb[1]);
+			padapter->sectorCount = cdb[4];
+			SetupTransfer (padapter, pdev->byte6);
+			padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
+			break;
+
+		case SCSIOP_WRITE:						// write10 CDB
+			padapter->startSector = XSCSI2LONG (&cdb[2]);
+			padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
+			SetupTransfer (padapter, pdev->byte6);
+			padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
+			break;
+		case SCSIOP_WRITE6:						// write6  CDB
+			padapter->startSector = SCSI2LONG (&cdb[1]);
+			padapter->sectorCount = cdb[4];
+			SetupTransfer (padapter, pdev->byte6);
+			padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
+			break;
+
+		default:
+			DEB (printk ("psi240i_queuecommand: Unsupported command %02X\n", *cdb));
+			SCpnt->result = DID_ERROR << 16;
+			done (SCpnt);
+			return 0;
+		}
+
+	padapter->SCpnt = SCpnt;  									// Save this command data
+
+	rc = IdeCmd (padapter);
+	if ( rc )
+		{
+		padapter->expectingIRQ = 0;
+		DEB (printk ("psi240i_queuecommand: %02X, %02X: Device failed to respond for command\n", *cdb, padapter->ide.ide.ides.cmd));
+		SCpnt->result = DID_ERROR << 16;
+		done (SCpnt);
+		return 0;
+		}
+	DEB (printk("psi240i_queuecommand: %02X, %02X now waiting for interrupt ", *cdb, padapter->ide.ide.ides.cmd));
+	return 0;
+	}
+
+/***************************************************************************
+ *	Name:			ReadChipMemory
+ *
+ *	Description:	Read information from controller memory.
+ *
+ *	Parameters:		psetup	- Pointer to memory image of setup information.
+ *					base	- base address of memory.
+ *					length	- lenght of data space in bytes.
+ *					port	- I/O address of data port.
+ *
+ *	Returns:		Nothing.
+ *
+ **************************************************************************/
+static void ReadChipMemory (void *pdata, USHORT base, USHORT length, USHORT port)
+	{
+	USHORT	z, zz;
+	UCHAR	*pd = (UCHAR *)pdata;
+	outb_p (SEL_NONE, port + REG_SEL_FAIL);				// setup data port
+	zz = 0;
+	while ( zz < length )
+		{
+		outw_p (base, port + REG_ADDRESS);				// setup address
+
+		for ( z = 0;  z < 8;  z++ )
+			{
+			if ( (zz + z) < length )
+			*pd++ = inb_p (port + z);	// read data byte
+			}
+		zz += 8;
+		base += 8;
+		}
+	}
+/****************************************************************
+ *	Name:	Psi240i_Detect
+ *
+ *	Description:	Detect and initialize our boards.
+ *
+ *	Parameters:		tpnt - Pointer to SCSI host template structure.
+ *
+ *	Returns:		Number of adapters found.
+ *
+ ****************************************************************/
+static int Psi240i_Detect (Scsi_Host_Template *tpnt)
+	{
+	int					board;
+	int					count = 0;
+	int					unit;
+	int					z;
+	USHORT				port, port_range = 16;
+	CHIP_CONFIG_N		chipConfig;
+	CHIP_DEVICE_N		chipDevice[8];
+	struct Scsi_Host   *pshost;
+
+	for ( board = 0;  board < MAXBOARDS;  board++ )					// scan for I/O ports
+		{
+		pshost = NULL;
+		port = portAddr[board];								// get base address to test
+		if ( !request_region (port, port_range, "psi240i") )
+			continue;
+		if ( inb_p (port + REG_FAIL) != CHIP_ID )			// do the first test for likley hood that it is us
+			goto host_init_failure;
+		outb_p (SEL_NONE, port + REG_SEL_FAIL);				// setup EEPROM/RAM access
+		outw (0, port + REG_ADDRESS);						// setup EEPROM address zero
+		if ( inb_p (port) != 0x55 )							// test 1st byte
+			goto host_init_failure;									//   nope
+		if ( inb_p (port + 1) != 0xAA )						// test 2nd byte
+			goto host_init_failure;								//   nope
+
+		// at this point our board is found and can be accessed.  Now we need to initialize
+		// our informatation and register with the kernel.
+
+
+		ReadChipMemory (&chipConfig, CHIP_CONFIG, sizeof (chipConfig), port);
+		ReadChipMemory (&chipDevice, CHIP_DEVICE, sizeof (chipDevice), port);
+		ReadChipMemory (&ChipSetup, CHIP_EEPROM_DATA, sizeof (ChipSetup), port);
+
+		if ( !chipConfig.numDrives )						// if no devices on this board
+			goto host_init_failure;
+
+		pshost = scsi_register (tpnt, sizeof(ADAPTER240I));
+		if(pshost == NULL)
+			goto host_init_failure;	
+
+		PsiHost[chipConfig.irq - 10] = pshost;
+		pshost->unique_id = port;
+		pshost->io_port = port;
+		pshost->n_io_port = 16;  /* Number of bytes of I/O space used */
+		pshost->irq = chipConfig.irq;
+
+		for ( z = 0;  z < 11;  z++ )						// build regester address array
+			HOSTDATA(pshost)->ports[z] = port + z;
+		HOSTDATA(pshost)->ports[11] = port + REG_FAIL;
+		HOSTDATA(pshost)->ports[12] = port + REG_ALT_STAT;
+		DEB (printk ("\nPorts ="));
+		DEB (for (z=0;z<13;z++) printk(" %#04X",HOSTDATA(pshost)->ports[z]););
+
+		for ( z = 0;  z < chipConfig.numDrives;  ++z )
+			{
+			unit = chipDevice[z].channel & 0x0F;
+			HOSTDATA(pshost)->device[unit].device	 = ChipSetup.setupDevice[unit].device;
+			HOSTDATA(pshost)->device[unit].byte6	 = (UCHAR)(((unit & 1) << 4) | 0xE0);
+			HOSTDATA(pshost)->device[unit].spigot	 = (UCHAR)(1 << (unit >> 1));
+			HOSTDATA(pshost)->device[unit].sectors	 = ChipSetup.setupDevice[unit].sectors;
+			HOSTDATA(pshost)->device[unit].heads	 = ChipSetup.setupDevice[unit].heads;
+			HOSTDATA(pshost)->device[unit].cylinders = ChipSetup.setupDevice[unit].cylinders;
+			HOSTDATA(pshost)->device[unit].blocks	 = ChipSetup.setupDevice[unit].blocks;
+			DEB (printk ("\nHOSTDATA->device    = %X", HOSTDATA(pshost)->device[unit].device));
+			DEB (printk ("\n          byte6     = %X", HOSTDATA(pshost)->device[unit].byte6));
+			DEB (printk ("\n          spigot    = %X", HOSTDATA(pshost)->device[unit].spigot));
+			DEB (printk ("\n          sectors   = %X", HOSTDATA(pshost)->device[unit].sectors));
+			DEB (printk ("\n          heads     = %X", HOSTDATA(pshost)->device[unit].heads));
+			DEB (printk ("\n          cylinders = %X", HOSTDATA(pshost)->device[unit].cylinders));
+			DEB (printk ("\n          blocks    = %lX", HOSTDATA(pshost)->device[unit].blocks));
+			}
+
+		if ( request_irq (chipConfig.irq, do_Irq_Handler, 0, "psi240i", pshost) == 0 ) 
+			{
+			printk("\nPSI-240I EIDE CONTROLLER: at I/O = %x  IRQ = %d\n", port, chipConfig.irq);
+		        printk("(C) 1997 Perceptive Solutions, Inc. All rights reserved\n\n");
+		        count++;
+		        continue;
+			}
+
+		printk ("Unable to allocate IRQ for PSI-240I controller.\n");
+           
+host_init_failure:
+		
+		release_region (port, port_range);
+		if (pshost)
+			scsi_unregister (pshost);
+
+		}
+	return count;
+	}
+
+static int Psi240i_Release(struct Scsi_Host *shost)
+{
+	if (shost->irq)
+		free_irq(shost->irq, NULL);
+	if (shost->io_port && shost->n_io_port)
+		release_region(shost->io_port, shost->n_io_port);
+	scsi_unregister(shost);
+	return 0;
+}
+
+/****************************************************************
+ *	Name:	Psi240i_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.
+ *
+ ****************************************************************/
+static int Psi240i_BiosParam (struct scsi_device *sdev, struct block_device *dev,
+		sector_t capacity, int geom[])
+	{
+	POUR_DEVICE	pdev;
+
+	pdev = &(HOSTDATA(sdev->host)->device[sdev->id]);
+
+	geom[0] = pdev->heads;
+	geom[1] = pdev->sectors;
+	geom[2] = pdev->cylinders;
+	return 0;
+	}
+
+MODULE_LICENSE("GPL");
+
+static Scsi_Host_Template driver_template = {
+	.proc_name		= "psi240i", 
+	.name			= "PSI-240I EIDE Disk Controller",
+	.detect			= Psi240i_Detect,
+	.release		= Psi240i_Release,
+	.queuecommand		= Psi240i_QueueCommand,
+	.bios_param	  	= Psi240i_BiosParam,
+	.can_queue	  	= 1,
+	.this_id	  	= -1,
+	.sg_tablesize	  	= SG_NONE,
+	.cmd_per_lun	  	= 1, 
+	.use_clustering		= DISABLE_CLUSTERING,
+};
+#include "scsi_module.c"