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1626 |
jcastillo |
/*+M*************************************************************************
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* Perceptive Solutions, Inc. PCI-2000 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: pci2220i.c
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*
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* Description: SCSI driver for the PCI2220I 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/bios32.h>
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#include <linux/pci.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 "pci2220i.h"
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#include "psi_dale.h"
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#include<linux/stat.h>
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struct proc_dir_entry Proc_Scsi_Pci2220i =
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{ PROC_SCSI_PCI2220I, 7, "pci2220i", 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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#define STOP_HERE {int st;for(st=0;st<100;st++){st=1;}}
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#else
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#define DEB(x)
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#define STOP_HERE
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#endif
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#define MAXADAPTER 4 /* Increase this and the sizes of the arrays below, if you need more. */
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#define MAX_BUS_MASTER_BLOCKS 1 // This is the maximum we can bus master for (1024 bytes)
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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_STAT_SEL 8
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#define PORT_FAIL 9
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#define PORT_ALT_STAT 10
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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 sparebyte; // placeholder
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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[12];
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USHORT regDmaDesc; // address of the DMA discriptor register for direction of transfer
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USHORT regDmaCmdStat; // Byte #1 of DMA command status register
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USHORT regDmaAddrPci; // 32 bit register for PCI address of DMA
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USHORT regDmaAddrLoc; // 32 bit register for local bus address of DMA
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USHORT regDmaCount; // 32 bit register for DMA transfer count
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USHORT regDmaMode; // 32 bit register for DMA mode control
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USHORT regRemap; // 32 bit local space remap
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USHORT regDesc; // 32 bit local region descriptor
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USHORT regRange; // 32 bit local range
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USHORT regIrqControl; // 16 bit Interrupt enable/disable and status
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USHORT regScratchPad; // scratch pad I/O base address
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USHORT regBase; // Base I/O register for data space
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USHORT basePort; // PLX base I/O port
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USHORT timingMode; // timing mode currently set for adapter
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ULONG timingAddress; // address to use on adapter for current timing mode
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OUR_DEVICE device[4];
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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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USHORT readPhase;
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} ADAPTER2220I, *PADAPTER2220I;
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#define HOSTDATA(host) ((PADAPTER2220I)&host->hostdata)
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static struct Scsi_Host *PsiHost[MAXADAPTER] = {NULL,}; // One for each adapter
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static int NumAdapters = 0;
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static IDENTIFY_DATA identifyData;
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static SETUP DaleSetup;
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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 (PADAPTER2220I 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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outb_p (0, padapter->regDmaDesc); // write operation
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outl (padapter->timingAddress, padapter->regDmaAddrLoc);
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outl (virt_to_bus (padapter->buffer), padapter->regDmaAddrPci);
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outl ((ULONG)padapter->ide.ide.ide[2] * (ULONG)512, padapter->regDmaCount);
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outb_p (1, padapter->regDmaMode); // interrupts off
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outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear
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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 (PADAPTER2220I 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_STAT_SEL]); // 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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DEB(printk ("\npci2220i Issueing new command: 0x%X",padapter->ide.ide.ides.cmd));
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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 (PADAPTER2220I 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->ide.ide.ides.sectors = ( padapter->sectorCount > MAX_BUS_MASTER_BLOCKS ) ? MAX_BUS_MASTER_BLOCKS : 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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| 230 |
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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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PADAPTER2220I 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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| 253 |
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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 ("\npci2220i 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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| 268 |
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}
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| 269 |
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return DID_ERROR << 16;
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| 270 |
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}
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| 271 |
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/****************************************************************
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| 272 |
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* Name: Irq_Handler :LOCAL
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| 273 |
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*
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| 274 |
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* Description: Interrupt handler.
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| 275 |
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*
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| 276 |
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* Parameters: irq - Hardware IRQ number.
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| 277 |
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* dev_id -
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| 278 |
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* regs -
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| 279 |
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*
|
| 280 |
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* Returns: TRUE if drive is not ready in time.
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| 281 |
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*
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| 282 |
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****************************************************************/
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| 283 |
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static void Irq_Handler (int irq, void *dev_id, struct pt_regs *regs)
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| 284 |
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{
|
| 285 |
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struct Scsi_Host *shost = NULL; // Pointer to host data block
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| 286 |
|
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PADAPTER2220I padapter; // Pointer to adapter control structure
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| 287 |
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USHORT *pports; // I/O port array
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| 288 |
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Scsi_Cmnd *SCpnt;
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| 289 |
|
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UCHAR status;
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| 290 |
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int z;
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| 291 |
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| 292 |
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// DEB(printk ("\npci2220i recieved interrupt\n"));
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| 293 |
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| 294 |
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for ( z = 0; z < NumAdapters; z++ ) // scan for interrupt to process
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| 295 |
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{
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| 296 |
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if ( PsiHost[z]->irq == (UCHAR)(irq & 0xFF) )
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| 297 |
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{
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| 298 |
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if ( inw_p (HOSTDATA(PsiHost[z])->regIrqControl) & 0x8000 )
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| 299 |
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{
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| 300 |
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shost = PsiHost[z];
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| 301 |
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break;
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| 302 |
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}
|
| 303 |
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}
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| 304 |
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}
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| 305 |
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|
| 306 |
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if ( !shost )
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| 307 |
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{
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| 308 |
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DEB (printk ("\npci2220i: not my interrupt"));
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| 309 |
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return;
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| 310 |
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}
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| 311 |
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| 312 |
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padapter = HOSTDATA(shost);
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| 313 |
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pports = padapter->ports;
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| 314 |
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SCpnt = padapter->SCpnt;
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| 315 |
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| 316 |
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if ( !padapter->expectingIRQ )
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| 317 |
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{
|
| 318 |
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DEB(printk ("\npci2220i Unsolicited interrupt\n"));
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| 319 |
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return;
|
| 320 |
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}
|
| 321 |
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padapter->expectingIRQ = 0;
|
| 322 |
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|
| 323 |
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status = inb_p (padapter->ports[PORT_STAT_CMD]); // read the device status
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| 324 |
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if ( status & (IDE_STATUS_ERROR | IDE_STATUS_WRITE_FAULT) )
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| 325 |
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goto irqerror;
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| 326 |
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|
| 327 |
|
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switch ( padapter->ide.ide.ides.cmd ) // decide how to handle the interrupt
|
| 328 |
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{
|
| 329 |
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case IDE_CMD_READ_MULTIPLE:
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| 330 |
|
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if ( padapter->readPhase == 1 ) // is this a bus master channel complete?
|
| 331 |
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{
|
| 332 |
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DEB(printk ("\npci2220i processing read interrupt cleanup"));
|
| 333 |
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outb_p (0x08, padapter->regDmaCmdStat); // cancel interrupt from DMA engine
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| 334 |
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padapter->buffer += padapter->ide.ide.ides.sectors * 512;
|
| 335 |
|
|
if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
|
| 336 |
|
|
{
|
| 337 |
|
|
SCpnt->result = DID_OK << 16;
|
| 338 |
|
|
padapter->SCpnt = NULL;
|
| 339 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 340 |
|
|
return;
|
| 341 |
|
|
}
|
| 342 |
|
|
padapter->readPhase = 0;
|
| 343 |
|
|
if ( !(status = IdeCmd (padapter)) )
|
| 344 |
|
|
{
|
| 345 |
|
|
DEB (printk ("\npci2220i interrupt complete, waiting for another"));
|
| 346 |
|
|
return;
|
| 347 |
|
|
}
|
| 348 |
|
|
}
|
| 349 |
|
|
if ( status & IDE_STATUS_DRQ )
|
| 350 |
|
|
{
|
| 351 |
|
|
DEB(printk ("\npci2220i processing read interrupt start bus master cycle"));
|
| 352 |
|
|
outb_p (8, padapter->regDmaDesc); // read operation
|
| 353 |
|
|
padapter->readPhase = 1;
|
| 354 |
|
|
padapter->expectingIRQ = 1;
|
| 355 |
|
|
outl (padapter->timingAddress, padapter->regDmaAddrLoc);
|
| 356 |
|
|
outl (virt_to_bus (padapter->buffer), padapter->regDmaAddrPci);
|
| 357 |
|
|
outl ((ULONG)padapter->ide.ide.ides.sectors * (ULONG)512, padapter->regDmaCount);
|
| 358 |
|
|
outb_p (5, padapter->regDmaMode); // interrupt enable/disable
|
| 359 |
|
|
outb_p (0x03, padapter->regDmaCmdStat); // kick the DMA engine in gear
|
| 360 |
|
|
return;
|
| 361 |
|
|
}
|
| 362 |
|
|
break;
|
| 363 |
|
|
|
| 364 |
|
|
case IDE_CMD_WRITE_MULTIPLE:
|
| 365 |
|
|
DEB(printk ("\npci2220i processing write interrupt cleanup"));
|
| 366 |
|
|
padapter->buffer += padapter->ide.ide.ides.sectors * 512;
|
| 367 |
|
|
if ( SetupTransfer (padapter, padapter->ide.ide.ide[6] & 0xF0) )
|
| 368 |
|
|
{
|
| 369 |
|
|
SCpnt->result = DID_OK << 16;
|
| 370 |
|
|
padapter->SCpnt = NULL;
|
| 371 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 372 |
|
|
return;
|
| 373 |
|
|
}
|
| 374 |
|
|
if ( !(status = IdeCmd (padapter)) )
|
| 375 |
|
|
{
|
| 376 |
|
|
DEB (printk ("\npci2220i interrupt complete, waiting for another"));
|
| 377 |
|
|
return;
|
| 378 |
|
|
}
|
| 379 |
|
|
break;
|
| 380 |
|
|
|
| 381 |
|
|
case IDE_COMMAND_IDENTIFY:
|
| 382 |
|
|
{
|
| 383 |
|
|
PINQUIRYDATA pinquiryData = SCpnt->request_buffer;
|
| 384 |
|
|
|
| 385 |
|
|
DEB(printk ("\npci2220i processing verify interrupt cleanup"));
|
| 386 |
|
|
if ( status & IDE_STATUS_DRQ )
|
| 387 |
|
|
{
|
| 388 |
|
|
insw (pports[PORT_DATA], &identifyData, sizeof (identifyData) >> 1);
|
| 389 |
|
|
|
| 390 |
|
|
memset (pinquiryData, 0, SCpnt->request_bufflen); // Zero INQUIRY data structure.
|
| 391 |
|
|
pinquiryData->DeviceType = 0;
|
| 392 |
|
|
pinquiryData->Versions = 2;
|
| 393 |
|
|
pinquiryData->AdditionalLength = 35 - 4;
|
| 394 |
|
|
|
| 395 |
|
|
// Fill in vendor identification fields.
|
| 396 |
|
|
for ( z = 0; z < 20; z += 2 )
|
| 397 |
|
|
{
|
| 398 |
|
|
pinquiryData->VendorId[z] = ((UCHAR *)identifyData.ModelNumber)[z + 1];
|
| 399 |
|
|
pinquiryData->VendorId[z + 1] = ((UCHAR *)identifyData.ModelNumber)[z];
|
| 400 |
|
|
}
|
| 401 |
|
|
|
| 402 |
|
|
// Initialize unused portion of product id.
|
| 403 |
|
|
for ( z = 0; z < 4; z++ )
|
| 404 |
|
|
pinquiryData->ProductId[12 + z] = ' ';
|
| 405 |
|
|
|
| 406 |
|
|
// Move firmware revision from IDENTIFY data to
|
| 407 |
|
|
// product revision in INQUIRY data.
|
| 408 |
|
|
for ( z = 0; z < 4; z += 2 )
|
| 409 |
|
|
{
|
| 410 |
|
|
pinquiryData->ProductRevisionLevel[z] = ((UCHAR *)identifyData.FirmwareRevision)[z + 1];
|
| 411 |
|
|
pinquiryData->ProductRevisionLevel[z + 1] = ((UCHAR *)identifyData.FirmwareRevision)[z];
|
| 412 |
|
|
}
|
| 413 |
|
|
|
| 414 |
|
|
SCpnt->result = DID_OK << 16;
|
| 415 |
|
|
padapter->SCpnt = NULL;
|
| 416 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 417 |
|
|
return;
|
| 418 |
|
|
}
|
| 419 |
|
|
break;
|
| 420 |
|
|
}
|
| 421 |
|
|
|
| 422 |
|
|
default:
|
| 423 |
|
|
DEB(printk ("\npci2220i no real process here!"));
|
| 424 |
|
|
SCpnt->result = DID_OK << 16;
|
| 425 |
|
|
padapter->SCpnt = NULL;
|
| 426 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 427 |
|
|
return;
|
| 428 |
|
|
}
|
| 429 |
|
|
|
| 430 |
|
|
irqerror:;
|
| 431 |
|
|
DEB(printk ("\npci2220i error Device Status: %X\n", status));
|
| 432 |
|
|
SCpnt->result = DecodeError (shost, status);
|
| 433 |
|
|
SCpnt->scsi_done (SCpnt);
|
| 434 |
|
|
}
|
| 435 |
|
|
/****************************************************************
|
| 436 |
|
|
* Name: Pci2220i_QueueCommand
|
| 437 |
|
|
*
|
| 438 |
|
|
* Description: Process a queued command from the SCSI manager.
|
| 439 |
|
|
*
|
| 440 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 441 |
|
|
* done - Pointer to done function to call.
|
| 442 |
|
|
*
|
| 443 |
|
|
* Returns: Status code.
|
| 444 |
|
|
*
|
| 445 |
|
|
****************************************************************/
|
| 446 |
|
|
int Pci2220i_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
| 447 |
|
|
{
|
| 448 |
|
|
UCHAR *cdb = (UCHAR *)SCpnt->cmnd; // Pointer to SCSI CDB
|
| 449 |
|
|
PADAPTER2220I padapter = HOSTDATA(SCpnt->host); // Pointer to adapter control structure
|
| 450 |
|
|
POUR_DEVICE pdev = &padapter->device[SCpnt->target];// Pointer to device information
|
| 451 |
|
|
UCHAR rc; // command return code
|
| 452 |
|
|
|
| 453 |
|
|
SCpnt->scsi_done = done;
|
| 454 |
|
|
padapter->ide.ide.ides.spigot = pdev->spigot;
|
| 455 |
|
|
padapter->buffer = SCpnt->request_buffer;
|
| 456 |
|
|
if (done)
|
| 457 |
|
|
{
|
| 458 |
|
|
if ( !pdev->device || SCpnt->lun )
|
| 459 |
|
|
{
|
| 460 |
|
|
SCpnt->result = DID_BAD_TARGET << 16;
|
| 461 |
|
|
done (SCpnt);
|
| 462 |
|
|
return 0;
|
| 463 |
|
|
}
|
| 464 |
|
|
}
|
| 465 |
|
|
else
|
| 466 |
|
|
{
|
| 467 |
|
|
printk("pci2220i_queuecommand: %02X: done can't be NULL\n", *cdb);
|
| 468 |
|
|
return 0;
|
| 469 |
|
|
}
|
| 470 |
|
|
|
| 471 |
|
|
DEB (if(*cdb) printk ("\nCDB: %X- %X %X %X %X %X %X %X %X %X %X ", SCpnt->cmd_len, cdb[0], cdb[1], cdb[2], cdb[3], cdb[4], cdb[5], cdb[6], cdb[7], cdb[8], cdb[9]));
|
| 472 |
|
|
switch ( *cdb )
|
| 473 |
|
|
{
|
| 474 |
|
|
case SCSIOP_INQUIRY: // inquiry CDB
|
| 475 |
|
|
{
|
| 476 |
|
|
padapter->ide.ide.ide[6] = pdev->byte6;
|
| 477 |
|
|
padapter->ide.ide.ides.cmd = IDE_COMMAND_IDENTIFY;
|
| 478 |
|
|
break;
|
| 479 |
|
|
}
|
| 480 |
|
|
|
| 481 |
|
|
case SCSIOP_TEST_UNIT_READY: // test unit ready CDB
|
| 482 |
|
|
SCpnt->result = DID_OK << 16;
|
| 483 |
|
|
done (SCpnt);
|
| 484 |
|
|
return 0;
|
| 485 |
|
|
|
| 486 |
|
|
case SCSIOP_READ_CAPACITY: // read capctiy CDB
|
| 487 |
|
|
{
|
| 488 |
|
|
PREAD_CAPACITY_DATA pdata = (PREAD_CAPACITY_DATA)SCpnt->request_buffer;
|
| 489 |
|
|
|
| 490 |
|
|
pdata->blksiz = 0x20000;
|
| 491 |
|
|
XANY2SCSI ((UCHAR *)&pdata->blks, pdev->blocks);
|
| 492 |
|
|
SCpnt->result = DID_OK << 16;
|
| 493 |
|
|
done (SCpnt);
|
| 494 |
|
|
return 0;
|
| 495 |
|
|
}
|
| 496 |
|
|
|
| 497 |
|
|
case SCSIOP_VERIFY: // verify CDB
|
| 498 |
|
|
*(ULONG *)padapter->ide.ide.ides.lba = XSCSI2LONG (&cdb[2]);
|
| 499 |
|
|
padapter->ide.ide.ide[6] |= pdev->byte6;
|
| 500 |
|
|
padapter->ide.ide.ide[2] = (UCHAR)((USHORT)cdb[8] | ((USHORT)cdb[7] << 8));
|
| 501 |
|
|
padapter->ide.ide.ides.cmd = IDE_COMMAND_VERIFY;
|
| 502 |
|
|
break;
|
| 503 |
|
|
|
| 504 |
|
|
case SCSIOP_READ: // read10 CDB
|
| 505 |
|
|
padapter->startSector = XSCSI2LONG (&cdb[2]);
|
| 506 |
|
|
padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
|
| 507 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 508 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
|
| 509 |
|
|
padapter->readPhase = 0;
|
| 510 |
|
|
break;
|
| 511 |
|
|
|
| 512 |
|
|
case SCSIOP_READ6: // read6 CDB
|
| 513 |
|
|
padapter->startSector = SCSI2LONG (&cdb[1]);
|
| 514 |
|
|
padapter->sectorCount = cdb[4];
|
| 515 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 516 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_READ_MULTIPLE;
|
| 517 |
|
|
padapter->readPhase = 0;
|
| 518 |
|
|
break;
|
| 519 |
|
|
|
| 520 |
|
|
case SCSIOP_WRITE: // write10 CDB
|
| 521 |
|
|
padapter->startSector = XSCSI2LONG (&cdb[2]);
|
| 522 |
|
|
padapter->sectorCount = (USHORT)cdb[8] | ((USHORT)cdb[7] << 8);
|
| 523 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 524 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
|
| 525 |
|
|
break;
|
| 526 |
|
|
case SCSIOP_WRITE6: // write6 CDB
|
| 527 |
|
|
padapter->startSector = SCSI2LONG (&cdb[1]);
|
| 528 |
|
|
padapter->sectorCount = cdb[4];
|
| 529 |
|
|
SetupTransfer (padapter, pdev->byte6);
|
| 530 |
|
|
padapter->ide.ide.ides.cmd = IDE_CMD_WRITE_MULTIPLE;
|
| 531 |
|
|
break;
|
| 532 |
|
|
|
| 533 |
|
|
default:
|
| 534 |
|
|
DEB (printk ("pci2220i_queuecommand: Unsupported command %02X\n", *cdb));
|
| 535 |
|
|
SCpnt->result = DID_ERROR << 16;
|
| 536 |
|
|
done (SCpnt);
|
| 537 |
|
|
return 0;
|
| 538 |
|
|
}
|
| 539 |
|
|
|
| 540 |
|
|
padapter->SCpnt = SCpnt; // Save this command data
|
| 541 |
|
|
|
| 542 |
|
|
rc = IdeCmd (padapter);
|
| 543 |
|
|
if ( rc )
|
| 544 |
|
|
{
|
| 545 |
|
|
padapter->expectingIRQ = 0;
|
| 546 |
|
|
DEB (printk ("pci2220i_queuecommand: %02X, %02X: Device failed to respond for command\n", *cdb, padapter->ide.ide.ides.cmd));
|
| 547 |
|
|
SCpnt->result = DID_ERROR << 16;
|
| 548 |
|
|
done (SCpnt);
|
| 549 |
|
|
return 0;
|
| 550 |
|
|
}
|
| 551 |
|
|
if ( padapter->ide.ide.ides.cmd == IDE_CMD_WRITE_MULTIPLE )
|
| 552 |
|
|
{
|
| 553 |
|
|
if ( WriteData (padapter) )
|
| 554 |
|
|
{
|
| 555 |
|
|
padapter->expectingIRQ = 0;
|
| 556 |
|
|
DEB (printk ("pci2220i_queuecommand: %02X, %02X: Device failed to accept data\n", *cdb, padapter->ide.ide.ides.cmd));
|
| 557 |
|
|
SCpnt->result = DID_ERROR << 16;
|
| 558 |
|
|
done (SCpnt);
|
| 559 |
|
|
return 0;
|
| 560 |
|
|
}
|
| 561 |
|
|
}
|
| 562 |
|
|
DEB (printk(" now waiting for initial interrupt "));
|
| 563 |
|
|
return 0;
|
| 564 |
|
|
}
|
| 565 |
|
|
|
| 566 |
|
|
static void internal_done(Scsi_Cmnd * SCpnt)
|
| 567 |
|
|
{
|
| 568 |
|
|
SCpnt->SCp.Status++;
|
| 569 |
|
|
}
|
| 570 |
|
|
/****************************************************************
|
| 571 |
|
|
* Name: Pci2220i_Command
|
| 572 |
|
|
*
|
| 573 |
|
|
* Description: Process a command from the SCSI manager.
|
| 574 |
|
|
*
|
| 575 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 576 |
|
|
*
|
| 577 |
|
|
* Returns: Status code.
|
| 578 |
|
|
*
|
| 579 |
|
|
****************************************************************/
|
| 580 |
|
|
int Pci2220i_Command (Scsi_Cmnd *SCpnt)
|
| 581 |
|
|
{
|
| 582 |
|
|
DEB(printk("pci2220i_command: ..calling pci2220i_queuecommand\n"));
|
| 583 |
|
|
|
| 584 |
|
|
Pci2220i_QueueCommand (SCpnt, internal_done);
|
| 585 |
|
|
|
| 586 |
|
|
SCpnt->SCp.Status = 0;
|
| 587 |
|
|
while (!SCpnt->SCp.Status)
|
| 588 |
|
|
barrier ();
|
| 589 |
|
|
return SCpnt->result;
|
| 590 |
|
|
}
|
| 591 |
|
|
/****************************************************************
|
| 592 |
|
|
* Name: ReadFlash
|
| 593 |
|
|
*
|
| 594 |
|
|
* Description: Read information from controller Flash memory.
|
| 595 |
|
|
*
|
| 596 |
|
|
* Parameters: hostdata - Pointer to host interface data structure.
|
| 597 |
|
|
* pdata - Pointer to data structures.
|
| 598 |
|
|
* base - base address in Flash.
|
| 599 |
|
|
* length - lenght of data space in bytes.
|
| 600 |
|
|
*
|
| 601 |
|
|
* Returns: Nothing.
|
| 602 |
|
|
*
|
| 603 |
|
|
****************************************************************/
|
| 604 |
|
|
VOID ReadFlash (PADAPTER2220I hostdata, VOID *pdata, ULONG base, ULONG length)
|
| 605 |
|
|
{
|
| 606 |
|
|
ULONG oldremap;
|
| 607 |
|
|
UCHAR olddesc;
|
| 608 |
|
|
ULONG z;
|
| 609 |
|
|
UCHAR *pd = (UCHAR *)pdata;
|
| 610 |
|
|
|
| 611 |
|
|
oldremap = inl (hostdata->regRemap); // save values to restore later
|
| 612 |
|
|
olddesc = inb_p (hostdata->regDesc);
|
| 613 |
|
|
|
| 614 |
|
|
outl (base | 1, hostdata->regRemap); // remap to Flash space as specified
|
| 615 |
|
|
outb_p (0x40, hostdata->regDesc); // describe remap region as 8 bit
|
| 616 |
|
|
for ( z = 0; z < length; z++) // get "length" data count
|
| 617 |
|
|
*pd++ = inb_p (hostdata->regBase + z); // read in the data
|
| 618 |
|
|
|
| 619 |
|
|
outl (oldremap, hostdata->regRemap); // restore remap register values
|
| 620 |
|
|
outb_p (olddesc, hostdata->regDesc);
|
| 621 |
|
|
}
|
| 622 |
|
|
|
| 623 |
|
|
/****************************************************************
|
| 624 |
|
|
* Name: Pci2220i_Detect
|
| 625 |
|
|
*
|
| 626 |
|
|
* Description: Detect and initialize our boards.
|
| 627 |
|
|
*
|
| 628 |
|
|
* Parameters: tpnt - Pointer to SCSI host template structure.
|
| 629 |
|
|
*
|
| 630 |
|
|
* Returns: Number of adapters found.
|
| 631 |
|
|
*
|
| 632 |
|
|
****************************************************************/
|
| 633 |
|
|
int Pci2220i_Detect (Scsi_Host_Template *tpnt)
|
| 634 |
|
|
{
|
| 635 |
|
|
int pci_index = 0;
|
| 636 |
|
|
struct Scsi_Host *pshost;
|
| 637 |
|
|
PADAPTER2220I hostdata;
|
| 638 |
|
|
ULONG modearray[] = {DALE_DATA_MODE2, DALE_DATA_MODE3, DALE_DATA_MODE4, DALE_DATA_MODE4P};
|
| 639 |
|
|
int unit;
|
| 640 |
|
|
int z;
|
| 641 |
|
|
int setirq;
|
| 642 |
|
|
|
| 643 |
|
|
if ( pcibios_present () )
|
| 644 |
|
|
{
|
| 645 |
|
|
for ( pci_index = 0; pci_index <= MAXADAPTER; ++pci_index )
|
| 646 |
|
|
{
|
| 647 |
|
|
UCHAR pci_bus, pci_device_fn;
|
| 648 |
|
|
|
| 649 |
|
|
if ( pcibios_find_device (VENDOR_PSI, DEVICE_DALE_1, pci_index, &pci_bus, &pci_device_fn) != 0 )
|
| 650 |
|
|
break;
|
| 651 |
|
|
|
| 652 |
|
|
pshost = scsi_register (tpnt, sizeof(ADAPTER2220I));
|
| 653 |
|
|
hostdata = HOSTDATA(pshost);
|
| 654 |
|
|
|
| 655 |
|
|
pcibios_read_config_word (pci_bus, pci_device_fn, PCI_BASE_ADDRESS_1, &hostdata->basePort);
|
| 656 |
|
|
hostdata->basePort &= 0xFFFE;
|
| 657 |
|
|
DEB (printk ("\nBase Regs = %#04X", hostdata->basePort));
|
| 658 |
|
|
hostdata->regRemap = hostdata->basePort + RTR_LOCAL_REMAP; // 32 bit local space remap
|
| 659 |
|
|
DEB (printk (" %#04X", hostdata->regRemap));
|
| 660 |
|
|
hostdata->regDesc = hostdata->basePort + RTR_REGIONS; // 32 bit local region descriptor
|
| 661 |
|
|
DEB (printk (" %#04X", hostdata->regDesc));
|
| 662 |
|
|
hostdata->regRange = hostdata->basePort + RTR_LOCAL_RANGE; // 32 bit local range
|
| 663 |
|
|
DEB (printk (" %#04X", hostdata->regRange));
|
| 664 |
|
|
hostdata->regIrqControl = hostdata->basePort + RTR_INT_CONTROL_STATUS; // 16 bit interupt control and status
|
| 665 |
|
|
DEB (printk (" %#04X", hostdata->regIrqControl));
|
| 666 |
|
|
hostdata->regScratchPad = hostdata->basePort + RTR_MAILBOX; // 16 byte scratchpad I/O base address
|
| 667 |
|
|
DEB (printk (" %#04X", hostdata->regScratchPad));
|
| 668 |
|
|
|
| 669 |
|
|
pcibios_read_config_word (pci_bus, pci_device_fn, PCI_BASE_ADDRESS_2, &hostdata->regBase);
|
| 670 |
|
|
hostdata->regBase &= 0xFFFE;
|
| 671 |
|
|
for ( z = 0; z < 9; z++ ) // build regester address array
|
| 672 |
|
|
hostdata->ports[z] = hostdata->regBase + 0x80 + (z * 4);
|
| 673 |
|
|
hostdata->ports[PORT_FAIL] = hostdata->regBase + REG_FAIL;
|
| 674 |
|
|
hostdata->ports[PORT_ALT_STAT] = hostdata->regBase + REG_ALT_STAT;
|
| 675 |
|
|
DEB (printk ("\nPorts ="));
|
| 676 |
|
|
DEB (for (z=0;z<11;z++) printk(" %#04X", hostdata->ports[z]););
|
| 677 |
|
|
|
| 678 |
|
|
hostdata->regDmaDesc = hostdata->regBase + RTL_DMA1_DESC_PTR; // address of the DMA discriptor register for direction of transfer
|
| 679 |
|
|
DEB (printk ("\nDMA Regs = %#04X", hostdata->regDmaDesc));
|
| 680 |
|
|
hostdata->regDmaCmdStat = hostdata->regBase + RTL_DMA_COMMAND_STATUS + 1; // Byte #1 of DMA command status register
|
| 681 |
|
|
DEB (printk (" %#04X", hostdata->regDmaCmdStat));
|
| 682 |
|
|
hostdata->regDmaAddrPci = hostdata->regBase + RTL_DMA1_PCI_ADDR; // 32 bit register for PCI address of DMA
|
| 683 |
|
|
DEB (printk (" %#04X", hostdata->regDmaAddrPci));
|
| 684 |
|
|
hostdata->regDmaAddrLoc = hostdata->regBase + RTL_DMA1_LOCAL_ADDR; // 32 bit register for local bus address of DMA
|
| 685 |
|
|
DEB (printk (" %#04X", hostdata->regDmaAddrLoc));
|
| 686 |
|
|
hostdata->regDmaCount = hostdata->regBase + RTL_DMA1_COUNT; // 32 bit register for DMA transfer count
|
| 687 |
|
|
DEB (printk (" %#04X", hostdata->regDmaCount));
|
| 688 |
|
|
hostdata->regDmaMode = hostdata->regBase + RTL_DMA1_MODE + 1; // 32 bit register for DMA mode control
|
| 689 |
|
|
DEB (printk (" %#04X", hostdata->regDmaMode));
|
| 690 |
|
|
|
| 691 |
|
|
if ( !inb_p (hostdata->regScratchPad + DALE_NUM_DRIVES) ) // if no devices on this board
|
| 692 |
|
|
goto unregister;
|
| 693 |
|
|
|
| 694 |
|
|
pcibios_read_config_byte (pci_bus, pci_device_fn, PCI_INTERRUPT_LINE, &pshost->irq);
|
| 695 |
|
|
setirq = 1;
|
| 696 |
|
|
for ( z = 0; z < pci_index; z++ ) // scan for shared interrupts
|
| 697 |
|
|
{
|
| 698 |
|
|
if ( PsiHost[z]->irq == pshost->irq ) // if shared then, don't posses
|
| 699 |
|
|
setirq = 0;
|
| 700 |
|
|
}
|
| 701 |
|
|
if ( setirq ) // if not shared, posses
|
| 702 |
|
|
{
|
| 703 |
|
|
if ( request_irq (pshost->irq, Irq_Handler, 0, "pci2220i", NULL) )
|
| 704 |
|
|
{
|
| 705 |
|
|
printk ("Unable to allocate IRQ for PSI-2220I controller.\n");
|
| 706 |
|
|
goto unregister;
|
| 707 |
|
|
}
|
| 708 |
|
|
}
|
| 709 |
|
|
PsiHost[pci_index] = pshost; // save SCSI_HOST pointer
|
| 710 |
|
|
|
| 711 |
|
|
pshost->unique_id = hostdata->regBase;
|
| 712 |
|
|
pshost->max_id = 4;
|
| 713 |
|
|
|
| 714 |
|
|
outb_p (0x01, hostdata->regRange); // fix our range register because other drivers want to tromp on it
|
| 715 |
|
|
|
| 716 |
|
|
hostdata->timingMode = inb_p (hostdata->regScratchPad + DALE_TIMING_MODE);
|
| 717 |
|
|
hostdata->timingAddress = modearray[hostdata->timingMode - 2];
|
| 718 |
|
|
ReadFlash (hostdata, &DaleSetup, DALE_FLASH_SETUP, sizeof (SETUP));
|
| 719 |
|
|
|
| 720 |
|
|
for ( z = 0; z < inb_p (hostdata->regScratchPad + DALE_NUM_DRIVES); ++z )
|
| 721 |
|
|
{
|
| 722 |
|
|
unit = inb_p (hostdata->regScratchPad + DALE_CHANNEL_DEVICE_0 + z) & 0x0F;
|
| 723 |
|
|
hostdata->device[unit].device = inb_p (hostdata->regScratchPad + DALE_SCRATH_DEVICE_0 + unit);
|
| 724 |
|
|
hostdata->device[unit].byte6 = (UCHAR)(((unit & 1) << 4) | 0xE0);
|
| 725 |
|
|
hostdata->device[unit].spigot = (UCHAR)(1 << (unit >> 1));
|
| 726 |
|
|
hostdata->device[unit].sectors = DaleSetup.setupDevice[unit].sectors;
|
| 727 |
|
|
hostdata->device[unit].heads = DaleSetup.setupDevice[unit].heads;
|
| 728 |
|
|
hostdata->device[unit].cylinders = DaleSetup.setupDevice[unit].cylinders;
|
| 729 |
|
|
hostdata->device[unit].blocks = DaleSetup.setupDevice[unit].blocks;
|
| 730 |
|
|
DEB (printk ("\nHOSTDATA->device = %X", hostdata->device[unit].device));
|
| 731 |
|
|
DEB (printk ("\n byte6 = %X", hostdata->device[unit].byte6));
|
| 732 |
|
|
DEB (printk ("\n spigot = %X", hostdata->device[unit].spigot));
|
| 733 |
|
|
DEB (printk ("\n sectors = %X", hostdata->device[unit].sectors));
|
| 734 |
|
|
DEB (printk ("\n heads = %X", hostdata->device[unit].heads));
|
| 735 |
|
|
DEB (printk ("\n cylinders = %X", hostdata->device[unit].cylinders));
|
| 736 |
|
|
DEB (printk ("\n blocks = %lX", hostdata->device[unit].blocks));
|
| 737 |
|
|
}
|
| 738 |
|
|
|
| 739 |
|
|
printk("\nPSI-2220I EIDE CONTROLLER: at I/O = %X/%X IRQ = %d\n", hostdata->basePort, hostdata->regBase, pshost->irq);
|
| 740 |
|
|
printk("(C) 1997 Perceptive Solutions, Inc. All rights reserved\n\n");
|
| 741 |
|
|
|
| 742 |
|
|
NumAdapters++;
|
| 743 |
|
|
continue;
|
| 744 |
|
|
unregister:;
|
| 745 |
|
|
scsi_unregister (pshost);
|
| 746 |
|
|
}
|
| 747 |
|
|
}
|
| 748 |
|
|
return NumAdapters;
|
| 749 |
|
|
}
|
| 750 |
|
|
/****************************************************************
|
| 751 |
|
|
* Name: Pci2220i_Abort
|
| 752 |
|
|
*
|
| 753 |
|
|
* Description: Process the Abort command from the SCSI manager.
|
| 754 |
|
|
*
|
| 755 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 756 |
|
|
*
|
| 757 |
|
|
* Returns: Allways snooze.
|
| 758 |
|
|
*
|
| 759 |
|
|
****************************************************************/
|
| 760 |
|
|
int Pci2220i_Abort (Scsi_Cmnd *SCpnt)
|
| 761 |
|
|
{
|
| 762 |
|
|
DEB (printk ("pci2220i_abort\n"));
|
| 763 |
|
|
return SCSI_ABORT_SNOOZE;
|
| 764 |
|
|
}
|
| 765 |
|
|
/****************************************************************
|
| 766 |
|
|
* Name: Pci2220i_Reset
|
| 767 |
|
|
*
|
| 768 |
|
|
* Description: Process the Reset command from the SCSI manager.
|
| 769 |
|
|
*
|
| 770 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 771 |
|
|
* flags - Flags about the reset command
|
| 772 |
|
|
*
|
| 773 |
|
|
* Returns: No active command at this time, so this means
|
| 774 |
|
|
* that each time we got some kind of response the
|
| 775 |
|
|
* last time through. Tell the mid-level code to
|
| 776 |
|
|
* request sense information in order to decide what
|
| 777 |
|
|
* to do next.
|
| 778 |
|
|
*
|
| 779 |
|
|
****************************************************************/
|
| 780 |
|
|
int Pci2220i_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
|
| 781 |
|
|
{
|
| 782 |
|
|
return SCSI_RESET_PUNT;
|
| 783 |
|
|
}
|
| 784 |
|
|
|
| 785 |
|
|
#include "sd.h"
|
| 786 |
|
|
|
| 787 |
|
|
/****************************************************************
|
| 788 |
|
|
* Name: Pci2220i_BiosParam
|
| 789 |
|
|
*
|
| 790 |
|
|
* Description: Process the biosparam request from the SCSI manager to
|
| 791 |
|
|
* return C/H/S data.
|
| 792 |
|
|
*
|
| 793 |
|
|
* Parameters: disk - Pointer to SCSI disk structure.
|
| 794 |
|
|
* dev - Major/minor number from kernel.
|
| 795 |
|
|
* geom - Pointer to integer array to place geometry data.
|
| 796 |
|
|
*
|
| 797 |
|
|
* Returns: zero.
|
| 798 |
|
|
*
|
| 799 |
|
|
****************************************************************/
|
| 800 |
|
|
int Pci2220i_BiosParam (Scsi_Disk *disk, kdev_t dev, int geom[])
|
| 801 |
|
|
{
|
| 802 |
|
|
POUR_DEVICE pdev;
|
| 803 |
|
|
|
| 804 |
|
|
pdev = &(HOSTDATA(disk->device->host)->device[disk->device->id]);
|
| 805 |
|
|
|
| 806 |
|
|
geom[0] = pdev->heads;
|
| 807 |
|
|
geom[1] = pdev->sectors;
|
| 808 |
|
|
geom[2] = pdev->cylinders;
|
| 809 |
|
|
return 0;
|
| 810 |
|
|
}
|
| 811 |
|
|
|
| 812 |
|
|
|
| 813 |
|
|
#ifdef MODULE
|
| 814 |
|
|
/* Eventually this will go into an include file, but this will be later */
|
| 815 |
|
|
Scsi_Host_Template driver_template = PCI2220I;
|
| 816 |
|
|
|
| 817 |
|
|
#include "scsi_module.c"
|
| 818 |
|
|
#endif
|
| 819 |
|
|
|
