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1626 |
jcastillo |
/*+M*************************************************************************
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* Perceptive Solutions, Inc. PSI-240I device driver proc support for Linux.
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*
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* Copyright (c) 1997 Perceptive Solutions, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* File Name: psi240i.c
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*
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* Description: SCSI driver for the PSI240I EIDE interface card.
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*
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*-M*************************************************************************/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/head.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/ioport.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/proc_fs.h>
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#include <asm/dma.h>
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#include <asm/system.h>
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#include <asm/io.h>
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#include <linux/blk.h>
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#include "scsi.h"
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#include "hosts.h"
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#include "psi240i.h"
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#include "psi_chip.h"
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#include<linux/stat.h>
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struct proc_dir_entry Proc_Scsi_Psi240i =
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{ PROC_SCSI_PSI240I, 7, "psi240i", S_IFDIR | S_IRUGO | S_IXUGO, 2 };
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//#define DEBUG 1
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#ifdef DEBUG
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#define DEB(x) x
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#else
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#define DEB(x)
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#endif
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#define MAXBOARDS 2 /* Increase this and the sizes of the arrays below, if you need more. */
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#define PORT_DATA 0
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#define PORT_ERROR 1
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#define PORT_SECTOR_COUNT 2
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#define PORT_LBA_0 3
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#define PORT_LBA_8 4
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#define PORT_LBA_16 5
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#define PORT_LBA_24 6
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#define PORT_STAT_CMD 7
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#define PORT_SEL_FAIL 8
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#define PORT_IRQ_STATUS 9
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#define PORT_ADDRESS 10
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#define PORT_FAIL 11
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#define PORT_ALT_STAT 12
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typedef struct
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{
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UCHAR device; // device code
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UCHAR byte6; // device select register image
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UCHAR spigot; // spigot number
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UCHAR expectingIRQ; // flag for expecting and interrupt
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USHORT sectors; // number of sectors per track
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USHORT heads; // number of heads
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USHORT cylinders; // number of cylinders for this device
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USHORT spareword; // placeholder
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ULONG blocks; // number of blocks on device
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} OUR_DEVICE, *POUR_DEVICE;
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typedef struct
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{
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USHORT ports[13];
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OUR_DEVICE device[8];
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Scsi_Cmnd *pSCmnd;
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IDE_STRUCT ide;
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ULONG startSector;
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USHORT sectorCount;
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Scsi_Cmnd *SCpnt;
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VOID *buffer;
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USHORT expectingIRQ;
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} ADAPTER240I, *PADAPTER240I;
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#define HOSTDATA(host) ((PADAPTER240I)&host->hostdata)
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static struct Scsi_Host *PsiHost[6] = {NULL,}; /* One for each IRQ level (10-15) */
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static IDENTIFY_DATA identifyData;
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static SETUP ChipSetup;
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static USHORT portAddr[6] = {CHIP_ADRS_0, CHIP_ADRS_1, CHIP_ADRS_2, CHIP_ADRS_3, CHIP_ADRS_4, CHIP_ADRS_5};
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/****************************************************************
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* Name: WriteData :LOCAL
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*
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* Description: Write data to device.
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*
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* Parameters: padapter - Pointer adapter data structure.
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*
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* Returns: TRUE if drive does not assert DRQ in time.
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*
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****************************************************************/
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static int WriteData (PADAPTER240I padapter)
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{
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ULONG timer;
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USHORT *pports = padapter->ports;
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timer = jiffies + TIMEOUT_DRQ; // calculate the timeout value
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do {
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if ( inb_p (pports[PORT_STAT_CMD]) & IDE_STATUS_DRQ )
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{
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outsw (pports[PORT_DATA], padapter->buffer, (USHORT)padapter->ide.ide.ide[2] * 256);
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return 0;
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}
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} while ( timer > jiffies ); // test for timeout
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padapter->ide.ide.ides.cmd = 0; // null out the command byte
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return 1;
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}
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/****************************************************************
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* Name: IdeCmd :LOCAL
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*
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* Description: Process a queued command from the SCSI manager.
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*
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* Parameters: padapter - Pointer adapter data structure.
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*
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* Returns: Zero if no error or status register contents on error.
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*
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****************************************************************/
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static UCHAR IdeCmd (PADAPTER240I padapter)
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{
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ULONG timer;
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USHORT *pports = padapter->ports;
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UCHAR status;
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outb_p (padapter->ide.ide.ides.spigot, pports[PORT_SEL_FAIL]); // select the spigot
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outb_p (padapter->ide.ide.ide[6], pports[PORT_LBA_24]); // select the drive
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timer = jiffies + TIMEOUT_READY; // calculate the timeout value
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do {
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status = inb_p (padapter->ports[PORT_STAT_CMD]);
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if ( status & IDE_STATUS_DRDY )
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{
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outb_p (padapter->ide.ide.ide[2], pports[PORT_SECTOR_COUNT]);
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outb_p (padapter->ide.ide.ide[3], pports[PORT_LBA_0]);
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outb_p (padapter->ide.ide.ide[4], pports[PORT_LBA_8]);
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outb_p (padapter->ide.ide.ide[5], pports[PORT_LBA_16]);
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padapter->expectingIRQ = 1;
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outb_p (padapter->ide.ide.ide[7], pports[PORT_STAT_CMD]);
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if ( padapter->ide.ide.ides.cmd == IDE_CMD_WRITE_MULTIPLE )
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return (WriteData (padapter));
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return 0;
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}
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} while ( timer > jiffies ); // test for timeout
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padapter->ide.ide.ides.cmd = 0; // null out the command byte
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return status;
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}
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/****************************************************************
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* Name: SetupTransfer :LOCAL
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*
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* Description: Setup a data transfer command.
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*
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* Parameters: padapter - Pointer adapter data structure.
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* drive - Drive/head register upper nibble only.
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*
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* Returns: TRUE if no data to transfer.
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*
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****************************************************************/
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static int SetupTransfer (PADAPTER240I padapter, UCHAR drive)
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{
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if ( padapter->sectorCount )
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{
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*(ULONG *)padapter->ide.ide.ides.lba = padapter->startSector;
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padapter->ide.ide.ide[6] |= drive;
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padapter->ide.ide.ides.sectors = ( padapter->sectorCount > SECTORSXFER ) ? SECTORSXFER : padapter->sectorCount;
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padapter->sectorCount -= padapter->ide.ide.ides.sectors; // bump the start and count for next xfer
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padapter->startSector += padapter->ide.ide.ides.sectors;
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return 0;
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}
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else
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{
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padapter->ide.ide.ides.cmd = 0; // null out the command byte
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padapter->SCpnt = NULL;
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return 1;
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}
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}
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/****************************************************************
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* Name: DecodeError :LOCAL
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*
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* Description: Decode and process device errors.
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*
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* Parameters: pshost - Pointer to host data block.
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* status - Status register code.
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*
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* Returns: The driver status code.
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*
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****************************************************************/
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static ULONG DecodeError (struct Scsi_Host *pshost, UCHAR status)
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{
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PADAPTER240I padapter = HOSTDATA(pshost);
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UCHAR error;
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padapter->expectingIRQ = 0;
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padapter->SCpnt = NULL;
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if ( status & IDE_STATUS_WRITE_FAULT )
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{
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return DID_PARITY << 16;
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}
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if ( status & IDE_STATUS_BUSY )
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return DID_BUS_BUSY << 16;
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error = inb_p (padapter->ports[PORT_ERROR]);
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DEB(printk ("\npsi240i error register: %x", error));
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switch ( error )
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{
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case IDE_ERROR_AMNF:
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case IDE_ERROR_TKONF:
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case IDE_ERROR_ABRT:
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case IDE_ERROR_IDFN:
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case IDE_ERROR_UNC:
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case IDE_ERROR_BBK:
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default:
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return DID_ERROR << 16;
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}
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return DID_ERROR << 16;
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}
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| 246 |
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/****************************************************************
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* Name: Irq_Handler :LOCAL
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| 248 |
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*
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* Description: Interrupt handler.
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*
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* Parameters: irq - Hardware IRQ number.
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* dev_id -
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* regs -
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*
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* Returns: TRUE if drive is not ready in time.
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*
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****************************************************************/
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static void Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
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{
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struct Scsi_Host *shost; // Pointer to host data block
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PADAPTER240I padapter; // Pointer to adapter control structure
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USHORT *pports; // I/O port array
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Scsi_Cmnd *SCpnt;
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UCHAR status;
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int z;
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| 266 |
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DEB(printk ("\npsi240i recieved interrupt\n"));
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| 269 |
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shost = PsiHost[irq - 10];
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if ( !shost )
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panic ("Splunge!");
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| 272 |
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| 273 |
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padapter = HOSTDATA(shost);
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pports = padapter->ports;
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SCpnt = padapter->SCpnt;
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| 277 |
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if ( !padapter->expectingIRQ )
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{
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| 279 |
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DEB(printk ("\npsi240i Unsolicited interrupt\n"));
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| 280 |
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return;
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| 281 |
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}
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| 282 |
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padapter->expectingIRQ = 0;
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| 283 |
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| 284 |
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status = inb_p (padapter->ports[PORT_STAT_CMD]); // read the device status
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| 285 |
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if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
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| 286 |
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goto irqerror;
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| 287 |
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| 288 |
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DEB(printk ("\npsi240i processing interrupt"));
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| 289 |
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switch ( padapter->ide.ide.ides.cmd ) // decide how to handle the interrupt
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| 290 |
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{
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| 291 |
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case IDE_CMD_READ_MULTIPLE:
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| 292 |
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if ( status & IDE_STATUS_DRQ )
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| 293 |
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{
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| 294 |
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insw (pports[PORT_DATA], padapter->buffer, (USHORT)padapter->ide.ide.ides.sectors * 256);
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| 295 |
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padapter->buffer += padapter->ide.ide.ides.sectors * 512;
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| 296 |
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if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
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| 297 |
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{
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| 298 |
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SCpnt->result = DID_OK << 16;
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| 299 |
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padapter->SCpnt = NULL;
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| 300 |
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SCpnt->scsi_done (SCpnt);
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| 301 |
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return;
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| 302 |
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}
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| 303 |
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if ( !(status = IdeCmd (padapter)) )
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| 304 |
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return;
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| 305 |
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}
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| 306 |
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break;
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| 307 |
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|
| 308 |
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case IDE_CMD_WRITE_MULTIPLE:
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| 309 |
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padapter->buffer += padapter->ide.ide.ides.sectors * 512;
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| 310 |
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if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
|
| 311 |
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{
|
| 312 |
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SCpnt->result = DID_OK << 16;
|
| 313 |
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padapter->SCpnt = NULL;
|
| 314 |
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SCpnt->scsi_done (SCpnt);
|
| 315 |
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return;
|
| 316 |
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}
|
| 317 |
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if ( !(status = IdeCmd (padapter)) )
|
| 318 |
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return;
|
| 319 |
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break;
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| 320 |
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|
| 321 |
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case IDE_COMMAND_IDENTIFY:
|
| 322 |
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{
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| 323 |
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PINQUIRYDATA pinquiryData = SCpnt->request_buffer;
|
| 324 |
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|
| 325 |
|
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if ( status & IDE_STATUS_DRQ )
|
| 326 |
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{
|
| 327 |
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insw (pports[PORT_DATA], &identifyData, sizeof (identifyData) >> 1);
|
| 328 |
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| 329 |
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memset (pinquiryData, 0, SCpnt->request_bufflen); // Zero INQUIRY data structure.
|
| 330 |
|
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pinquiryData->DeviceType = 0;
|
| 331 |
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pinquiryData->Versions = 2;
|
| 332 |
|
|
pinquiryData->AdditionalLength = 35 - 4;
|
| 333 |
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|
|
| 334 |
|
|
// Fill in vendor identification fields.
|
| 335 |
|
|
for ( z = 0; z < 20; z += 2 )
|
| 336 |
|
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{
|
| 337 |
|
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pinquiryData->VendorId[z] = ((UCHAR *)identifyData.ModelNumber)[z + 1];
|
| 338 |
|
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pinquiryData->VendorId[z + 1] = ((UCHAR *)identifyData.ModelNumber)[z];
|
| 339 |
|
|
}
|
| 340 |
|
|
|
| 341 |
|
|
// Initialize unused portion of product id.
|
| 342 |
|
|
for ( z = 0; z < 4; z++ )
|
| 343 |
|
|
pinquiryData->ProductId[12 + z] = ' ';
|
| 344 |
|
|
|
| 345 |
|
|
// Move firmware revision from IDENTIFY data to
|
| 346 |
|
|
// product revision in INQUIRY data.
|
| 347 |
|
|
for ( z = 0; z < 4; z += 2 )
|
| 348 |
|
|
{
|
| 349 |
|
|
pinquiryData->ProductRevisionLevel[z] = ((UCHAR *)identifyData.FirmwareRevision)[z + 1];
|
| 350 |
|
|
pinquiryData->ProductRevisionLevel[z + 1] = ((UCHAR *)identifyData.FirmwareRevision)[z];
|
| 351 |
|
|
}
|
| 352 |
|
|
|
| 353 |
|
|
SCpnt->result = DID_OK << 16;
|
| 354 |
|
|
padapter->SCpnt = NULL;
|
| 355 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 356 |
|
|
return;
|
| 357 |
|
|
}
|
| 358 |
|
|
break;
|
| 359 |
|
|
}
|
| 360 |
|
|
|
| 361 |
|
|
default:
|
| 362 |
|
|
SCpnt->result = DID_OK << 16;
|
| 363 |
|
|
padapter->SCpnt = NULL;
|
| 364 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 365 |
|
|
return;
|
| 366 |
|
|
}
|
| 367 |
|
|
|
| 368 |
|
|
irqerror:;
|
| 369 |
|
|
DEB(printk ("\npsi240i error Device Status: %X\n", status));
|
| 370 |
|
|
SCpnt->result = DecodeError (shost, status);
|
| 371 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 372 |
|
|
}
|
| 373 |
|
|
/****************************************************************
|
| 374 |
|
|
* Name: Psi240i_QueueCommand
|
| 375 |
|
|
*
|
| 376 |
|
|
* Description: Process a queued command from the SCSI manager.
|
| 377 |
|
|
*
|
| 378 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 379 |
|
|
* done - Pointer to done function to call.
|
| 380 |
|
|
*
|
| 381 |
|
|
* Returns: Status code.
|
| 382 |
|
|
*
|
| 383 |
|
|
****************************************************************/
|
| 384 |
|
|
int Psi240i_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
| 385 |
|
|
{
|
| 386 |
|
|
UCHAR *cdb = (UCHAR *)SCpnt->cmnd; // Pointer to SCSI CDB
|
| 387 |
|
|
PADAPTER240I padapter = HOSTDATA(SCpnt->host); // Pointer to adapter control structure
|
| 388 |
|
|
POUR_DEVICE pdev = &padapter->device[SCpnt->target];// Pointer to device information
|
| 389 |
|
|
UCHAR rc; // command return code
|
| 390 |
|
|
|
| 391 |
|
|
SCpnt->scsi_done = done;
|
| 392 |
|
|
padapter->ide.ide.ides.spigot = pdev->spigot;
|
| 393 |
|
|
padapter->buffer = SCpnt->request_buffer;
|
| 394 |
|
|
if (done)
|
| 395 |
|
|
{
|
| 396 |
|
|
if ( !pdev->device || SCpnt->lun )
|
| 397 |
|
|
{
|
| 398 |
|
|
SCpnt->result = DID_BAD_TARGET << 16;
|
| 399 |
|
|
done (SCpnt);
|
| 400 |
|
|
return 0;
|
| 401 |
|
|
}
|
| 402 |
|
|
}
|
| 403 |
|
|
else
|
| 404 |
|
|
{
|
| 405 |
|
|
printk("psi240i_queuecommand: %02X: done can't be NULL\n", *cdb);
|
| 406 |
|
|
return 0;
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
switch ( *cdb )
|
| 410 |
|
|
{
|
| 411 |
|
|
case SCSIOP_INQUIRY: // inquiry CDB
|
| 412 |
|
|
{
|
| 413 |
|
|
padapter->ide.ide.ide[6] = pdev->byte6;
|
| 414 |
|
|
padapter->ide.ide.ides.cmd = IDE_COMMAND_IDENTIFY;
|
| 415 |
|
|
break;
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
case SCSIOP_TEST_UNIT_READY: // test unit ready CDB
|
| 419 |
|
|
SCpnt->result = DID_OK << 16;
|
| 420 |
|
|
done (SCpnt);
|
| 421 |
|
|
return 0;
|
| 422 |
|
|
|
| 423 |
|
|
case SCSIOP_READ_CAPACITY: // read capctiy CDB
|
| 424 |
|
|
{
|
| 425 |
|
|
PREAD_CAPACITY_DATA pdata = (PREAD_CAPACITY_DATA)SCpnt->request_buffer;
|
| 426 |
|
|
|
| 427 |
|
|
pdata->blksiz = 0x20000;
|
| 428 |
|
|
XANY2SCSI ((UCHAR *)&pdata->blks, pdev->blocks);
|
| 429 |
|
|
SCpnt->result = DID_OK << 16;
|
| 430 |
|
|
done (SCpnt);
|
| 431 |
|
|
return 0;
|
| 432 |
|
|
}
|
| 433 |
|
|
|
| 434 |
|
|
case SCSIOP_VERIFY: // verify CDB
|
| 435 |
|
|
*(ULONG *)padapter->ide.ide.ides.lba = XSCSI2LONG (&cdb[2]);
|
| 436 |
|
|
padapter->ide.ide.ide[6] |= pdev->byte6;
|
| 437 |
|
|
padapter->ide.ide.ide[2] = (UCHAR)((USHORT)cdb[8] | ((USHORT)cdb[7] << 8));
|
| 438 |
|
|
padapter->ide.ide.ides.cmd = IDE_COMMAND_VERIFY;
|
| 439 |
|
|
break;
|
| 440 |
|
|
|
| 441 |
|
|
case SCSIOP_READ: // read10 CDB
|
| 442 |
|
|
padapter->startSector = XSCSI2LONG (&cdb[2]);
|
| 443 |
|
|
padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
|
| 444 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 445 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
|
| 446 |
|
|
break;
|
| 447 |
|
|
|
| 448 |
|
|
case SCSIOP_READ6: // read6 CDB
|
| 449 |
|
|
padapter->startSector = SCSI2LONG (&cdb[1]);
|
| 450 |
|
|
padapter->sectorCount = cdb[4];
|
| 451 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 452 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
|
| 453 |
|
|
break;
|
| 454 |
|
|
|
| 455 |
|
|
case SCSIOP_WRITE: // write10 CDB
|
| 456 |
|
|
padapter->startSector = XSCSI2LONG (&cdb[2]);
|
| 457 |
|
|
padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
|
| 458 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 459 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
|
| 460 |
|
|
break;
|
| 461 |
|
|
case SCSIOP_WRITE6: // write6 CDB
|
| 462 |
|
|
padapter->startSector = SCSI2LONG (&cdb[1]);
|
| 463 |
|
|
padapter->sectorCount = cdb[4];
|
| 464 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 465 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
|
| 466 |
|
|
break;
|
| 467 |
|
|
|
| 468 |
|
|
default:
|
| 469 |
|
|
DEB (printk ("psi240i_queuecommand: Unsupported command %02X\n", *cdb));
|
| 470 |
|
|
SCpnt->result = DID_ERROR << 16;
|
| 471 |
|
|
done (SCpnt);
|
| 472 |
|
|
return 0;
|
| 473 |
|
|
}
|
| 474 |
|
|
|
| 475 |
|
|
padapter->SCpnt = SCpnt; // Save this command data
|
| 476 |
|
|
|
| 477 |
|
|
rc = IdeCmd (padapter);
|
| 478 |
|
|
if ( rc )
|
| 479 |
|
|
{
|
| 480 |
|
|
padapter->expectingIRQ = 0;
|
| 481 |
|
|
DEB (printk ("psi240i_queuecommand: %02X, %02X: Device failed to respond for command\n", *cdb, padapter->ide.ide.ides.cmd));
|
| 482 |
|
|
SCpnt->result = DID_ERROR << 16;
|
| 483 |
|
|
done (SCpnt);
|
| 484 |
|
|
return 0;
|
| 485 |
|
|
}
|
| 486 |
|
|
DEB (printk("psi240i_queuecommand: %02X, %02X now waiting for interrupt ", *cdb, padapter->ide.ide.ides.cmd));
|
| 487 |
|
|
return 0;
|
| 488 |
|
|
}
|
| 489 |
|
|
|
| 490 |
|
|
static void internal_done(Scsi_Cmnd * SCpnt)
|
| 491 |
|
|
{
|
| 492 |
|
|
SCpnt->SCp.Status++;
|
| 493 |
|
|
}
|
| 494 |
|
|
/****************************************************************
|
| 495 |
|
|
* Name: Psi240i_Command
|
| 496 |
|
|
*
|
| 497 |
|
|
* Description: Process a command from the SCSI manager.
|
| 498 |
|
|
*
|
| 499 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 500 |
|
|
*
|
| 501 |
|
|
* Returns: Status code.
|
| 502 |
|
|
*
|
| 503 |
|
|
****************************************************************/
|
| 504 |
|
|
int Psi240i_Command (Scsi_Cmnd *SCpnt)
|
| 505 |
|
|
{
|
| 506 |
|
|
DEB(printk("psi240i_command: ..calling psi240i_queuecommand\n"));
|
| 507 |
|
|
|
| 508 |
|
|
Psi240i_QueueCommand (SCpnt, internal_done);
|
| 509 |
|
|
|
| 510 |
|
|
SCpnt->SCp.Status = 0;
|
| 511 |
|
|
while (!SCpnt->SCp.Status)
|
| 512 |
|
|
barrier ();
|
| 513 |
|
|
return SCpnt->result;
|
| 514 |
|
|
}
|
| 515 |
|
|
/***************************************************************************
|
| 516 |
|
|
* Name: ReadChipMemory
|
| 517 |
|
|
*
|
| 518 |
|
|
* Description: Read information from controller memory.
|
| 519 |
|
|
*
|
| 520 |
|
|
* Parameters: psetup - Pointer to memory image of setup information.
|
| 521 |
|
|
* base - base address of memory.
|
| 522 |
|
|
* length - lenght of data space in bytes.
|
| 523 |
|
|
* port - I/O address of data port.
|
| 524 |
|
|
*
|
| 525 |
|
|
* Returns: Nothing.
|
| 526 |
|
|
*
|
| 527 |
|
|
**************************************************************************/
|
| 528 |
|
|
void ReadChipMemory (void *pdata, USHORT base, USHORT length, USHORT port)
|
| 529 |
|
|
{
|
| 530 |
|
|
USHORT z, zz;
|
| 531 |
|
|
UCHAR *pd = (UCHAR *)pdata;
|
| 532 |
|
|
outb_p (SEL_NONE, port + REG_SEL_FAIL); // setup data port
|
| 533 |
|
|
zz = 0;
|
| 534 |
|
|
while ( zz < length )
|
| 535 |
|
|
{
|
| 536 |
|
|
outw_p (base, port + REG_ADDRESS); // setup address
|
| 537 |
|
|
|
| 538 |
|
|
for ( z = 0; z < 8; z++ )
|
| 539 |
|
|
{
|
| 540 |
|
|
if ( (zz + z) < length )
|
| 541 |
|
|
*pd++ = inb_p (port + z); // read data byte
|
| 542 |
|
|
}
|
| 543 |
|
|
zz += 8;
|
| 544 |
|
|
base += 8;
|
| 545 |
|
|
}
|
| 546 |
|
|
}
|
| 547 |
|
|
/****************************************************************
|
| 548 |
|
|
* Name: Psi240i_Detect
|
| 549 |
|
|
*
|
| 550 |
|
|
* Description: Detect and initialize our boards.
|
| 551 |
|
|
*
|
| 552 |
|
|
* Parameters: tpnt - Pointer to SCSI host template structure.
|
| 553 |
|
|
*
|
| 554 |
|
|
* Returns: Number of adapters found.
|
| 555 |
|
|
*
|
| 556 |
|
|
****************************************************************/
|
| 557 |
|
|
int Psi240i_Detect (Scsi_Host_Template *tpnt)
|
| 558 |
|
|
{
|
| 559 |
|
|
int board;
|
| 560 |
|
|
int count = 0;
|
| 561 |
|
|
int unit;
|
| 562 |
|
|
int z;
|
| 563 |
|
|
USHORT port;
|
| 564 |
|
|
CHIP_CONFIG_N chipConfig;
|
| 565 |
|
|
CHIP_DEVICE_N chipDevice[8];
|
| 566 |
|
|
struct Scsi_Host *pshost;
|
| 567 |
|
|
ULONG flags;
|
| 568 |
|
|
|
| 569 |
|
|
for ( board = 0; board < 6; board++ ) // scan for I/O ports
|
| 570 |
|
|
{
|
| 571 |
|
|
port = portAddr[board]; // get base address to test
|
| 572 |
|
|
if ( check_region (port, 16) ) // test for I/O addresses available
|
| 573 |
|
|
continue; // nope
|
| 574 |
|
|
if ( inb_p (port + REG_FAIL) != CHIP_ID ) // do the first test for likley hood that it is us
|
| 575 |
|
|
continue;
|
| 576 |
|
|
outb_p (SEL_NONE, port + REG_SEL_FAIL); // setup EEPROM/RAM access
|
| 577 |
|
|
outw (0, port + REG_ADDRESS); // setup EEPROM address zero
|
| 578 |
|
|
if ( inb_p (port) != 0x55 ) // test 1st byte
|
| 579 |
|
|
continue; // nope
|
| 580 |
|
|
if ( inb_p (port + 1) != 0xAA ) // test 2nd byte
|
| 581 |
|
|
continue; // nope
|
| 582 |
|
|
|
| 583 |
|
|
// at this point our board is found and can be accessed. Now we need to initialize
|
| 584 |
|
|
// our informatation and register with the kernel.
|
| 585 |
|
|
|
| 586 |
|
|
|
| 587 |
|
|
ReadChipMemory (&chipConfig, CHIP_CONFIG, sizeof (chipConfig), port);
|
| 588 |
|
|
ReadChipMemory (&chipDevice, CHIP_DEVICE, sizeof (chipDevice), port);
|
| 589 |
|
|
ReadChipMemory (&ChipSetup, CHIP_EEPROM_DATA, sizeof (ChipSetup), port);
|
| 590 |
|
|
|
| 591 |
|
|
if ( !chipConfig.numDrives ) // if no devices on this board
|
| 592 |
|
|
continue;
|
| 593 |
|
|
|
| 594 |
|
|
pshost = scsi_register (tpnt, sizeof(ADAPTER240I));
|
| 595 |
|
|
|
| 596 |
|
|
save_flags (flags);
|
| 597 |
|
|
cli ();
|
| 598 |
|
|
if ( request_irq (chipConfig.irq, Irq_Handler, 0, "psi240i", NULL) )
|
| 599 |
|
|
{
|
| 600 |
|
|
printk ("Unable to allocate IRQ for PSI-240I controller.\n");
|
| 601 |
|
|
restore_flags (flags);
|
| 602 |
|
|
goto unregister;
|
| 603 |
|
|
}
|
| 604 |
|
|
|
| 605 |
|
|
PsiHost[chipConfig.irq - 10] = pshost;
|
| 606 |
|
|
pshost->unique_id = port;
|
| 607 |
|
|
pshost->io_port = port;
|
| 608 |
|
|
pshost->n_io_port = 16; /* Number of bytes of I/O space used */
|
| 609 |
|
|
pshost->irq = chipConfig.irq;
|
| 610 |
|
|
|
| 611 |
|
|
for ( z = 0; z < 11; z++ ) // build regester address array
|
| 612 |
|
|
HOSTDATA(pshost)->ports[z] = port + z;
|
| 613 |
|
|
HOSTDATA(pshost)->ports[11] = port + REG_FAIL;
|
| 614 |
|
|
HOSTDATA(pshost)->ports[12] = port + REG_ALT_STAT;
|
| 615 |
|
|
DEB (printk ("\nPorts ="));
|
| 616 |
|
|
DEB (for (z=0;z<13;z++) printk(" %#04X",HOSTDATA(pshost)->ports[z]););
|
| 617 |
|
|
|
| 618 |
|
|
for ( z = 0; z < chipConfig.numDrives; ++z )
|
| 619 |
|
|
{
|
| 620 |
|
|
unit = chipDevice[z].channel & 0x0F;
|
| 621 |
|
|
HOSTDATA(pshost)->device[unit].device = ChipSetup.setupDevice[unit].device;
|
| 622 |
|
|
HOSTDATA(pshost)->device[unit].byte6 = (UCHAR)(((unit & 1) << 4) | 0xE0);
|
| 623 |
|
|
HOSTDATA(pshost)->device[unit].spigot = (UCHAR)(1 << (unit >> 1));
|
| 624 |
|
|
HOSTDATA(pshost)->device[unit].sectors = ChipSetup.setupDevice[unit].sectors;
|
| 625 |
|
|
HOSTDATA(pshost)->device[unit].heads = ChipSetup.setupDevice[unit].heads;
|
| 626 |
|
|
HOSTDATA(pshost)->device[unit].cylinders = ChipSetup.setupDevice[unit].cylinders;
|
| 627 |
|
|
HOSTDATA(pshost)->device[unit].blocks = ChipSetup.setupDevice[unit].blocks;
|
| 628 |
|
|
DEB (printk ("\nHOSTDATA->device = %X", HOSTDATA(pshost)->device[unit].device));
|
| 629 |
|
|
DEB (printk ("\n byte6 = %X", HOSTDATA(pshost)->device[unit].byte6));
|
| 630 |
|
|
DEB (printk ("\n spigot = %X", HOSTDATA(pshost)->device[unit].spigot));
|
| 631 |
|
|
DEB (printk ("\n sectors = %X", HOSTDATA(pshost)->device[unit].sectors));
|
| 632 |
|
|
DEB (printk ("\n heads = %X", HOSTDATA(pshost)->device[unit].heads));
|
| 633 |
|
|
DEB (printk ("\n cylinders = %X", HOSTDATA(pshost)->device[unit].cylinders));
|
| 634 |
|
|
DEB (printk ("\n blocks = %lX", HOSTDATA(pshost)->device[unit].blocks));
|
| 635 |
|
|
}
|
| 636 |
|
|
|
| 637 |
|
|
restore_flags (flags);
|
| 638 |
|
|
printk("\nPSI-240I EIDE CONTROLLER: at I/O = %x IRQ = %d\n", port, chipConfig.irq);
|
| 639 |
|
|
printk("(C) 1997 Perceptive Solutions, Inc. All rights reserved\n\n");
|
| 640 |
|
|
count++;
|
| 641 |
|
|
continue;
|
| 642 |
|
|
|
| 643 |
|
|
unregister:;
|
| 644 |
|
|
scsi_unregister (pshost);
|
| 645 |
|
|
}
|
| 646 |
|
|
return count;
|
| 647 |
|
|
}
|
| 648 |
|
|
/****************************************************************
|
| 649 |
|
|
* Name: Psi240i_Abort
|
| 650 |
|
|
*
|
| 651 |
|
|
* Description: Process the Abort command from the SCSI manager.
|
| 652 |
|
|
*
|
| 653 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 654 |
|
|
*
|
| 655 |
|
|
* Returns: Allways snooze.
|
| 656 |
|
|
*
|
| 657 |
|
|
****************************************************************/
|
| 658 |
|
|
int Psi240i_Abort (Scsi_Cmnd *SCpnt)
|
| 659 |
|
|
{
|
| 660 |
|
|
DEB (printk ("psi240i_abort\n"));
|
| 661 |
|
|
return SCSI_ABORT_SNOOZE;
|
| 662 |
|
|
}
|
| 663 |
|
|
/****************************************************************
|
| 664 |
|
|
* Name: Psi240i_Reset
|
| 665 |
|
|
*
|
| 666 |
|
|
* Description: Process the Reset command from the SCSI manager.
|
| 667 |
|
|
*
|
| 668 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 669 |
|
|
* flags - Flags about the reset command
|
| 670 |
|
|
*
|
| 671 |
|
|
* Returns: No active command at this time, so this means
|
| 672 |
|
|
* that each time we got some kind of response the
|
| 673 |
|
|
* last time through. Tell the mid-level code to
|
| 674 |
|
|
* request sense information in order to decide what
|
| 675 |
|
|
* to do next.
|
| 676 |
|
|
*
|
| 677 |
|
|
****************************************************************/
|
| 678 |
|
|
int Psi240i_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
|
| 679 |
|
|
{
|
| 680 |
|
|
return SCSI_RESET_PUNT;
|
| 681 |
|
|
}
|
| 682 |
|
|
|
| 683 |
|
|
#include "sd.h"
|
| 684 |
|
|
|
| 685 |
|
|
/****************************************************************
|
| 686 |
|
|
* Name: Psi240i_BiosParam
|
| 687 |
|
|
*
|
| 688 |
|
|
* Description: Process the biosparam request from the SCSI manager to
|
| 689 |
|
|
* return C/H/S data.
|
| 690 |
|
|
*
|
| 691 |
|
|
* Parameters: disk - Pointer to SCSI disk structure.
|
| 692 |
|
|
* dev - Major/minor number from kernel.
|
| 693 |
|
|
* geom - Pointer to integer array to place geometry data.
|
| 694 |
|
|
*
|
| 695 |
|
|
* Returns: zero.
|
| 696 |
|
|
*
|
| 697 |
|
|
****************************************************************/
|
| 698 |
|
|
int Psi240i_BiosParam (Scsi_Disk *disk, kdev_t dev, int geom[])
|
| 699 |
|
|
{
|
| 700 |
|
|
POUR_DEVICE pdev;
|
| 701 |
|
|
|
| 702 |
|
|
pdev = &(HOSTDATA(disk->device->host)->device[disk->device->id]);
|
| 703 |
|
|
|
| 704 |
|
|
geom[0] = pdev->heads;
|
| 705 |
|
|
geom[1] = pdev->sectors;
|
| 706 |
|
|
geom[2] = pdev->cylinders;
|
| 707 |
|
|
return 0;
|
| 708 |
|
|
}
|
| 709 |
|
|
|
| 710 |
|
|
|
| 711 |
|
|
#ifdef MODULE
|
| 712 |
|
|
/* Eventually this will go into an include file, but this will be later */
|
| 713 |
|
|
Scsi_Host_Template driver_template = PSI240I;
|
| 714 |
|
|
|
| 715 |
|
|
#include "scsi_module.c"
|
| 716 |
|
|
#endif
|
| 717 |
|
|
|
