685 lines
21 KiB
C
685 lines
21 KiB
C
/*+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 (struct 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(sdev)]);
|
|
|
|
geom[0] = pdev->heads;
|
|
geom[1] = pdev->sectors;
|
|
geom[2] = pdev->cylinders;
|
|
return 0;
|
|
}
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static struct 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"
|