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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: pci2000i.c
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*
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* Revisions 1.10 Jan-21-1999
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*
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* - Fixed sign on message to reflect proper controller name.
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* - Added support for RAID status monitoring and control.
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*
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*-M*************************************************************************/
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#define PCI2000_VERSION "1.10"
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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 "pci2000.h"
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#include "psi_roy.h"
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#include<linux/stat.h>
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struct proc_dir_entry Proc_Scsi_Pci2000 =
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{ PROC_SCSI_PCI2000, 7, "pci2000", 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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typedef struct
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{
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ULONG address;
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ULONG length;
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} SCATGATH, *PSCATGATH;
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typedef struct
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{
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Scsi_Cmnd *SCpnt;
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SCATGATH scatGath[16];
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UCHAR tag;
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} DEV2000, *PDEV2000;
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typedef struct
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{
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USHORT basePort;
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USHORT mb0;
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USHORT mb1;
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USHORT mb2;
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USHORT mb3;
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USHORT mb4;
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USHORT cmd;
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USHORT tag;
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DEV2000 dev[MAX_BUS][MAX_UNITS];
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} ADAPTER2000, *PADAPTER2000;
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#define HOSTDATA(host) ((PADAPTER2000)&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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/****************************************************************
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* Name: WaitReady :LOCAL
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*
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* Description: Wait for controller ready.
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*
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* Parameters: padapter - Pointer adapter data structure.
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*
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* Returns: TRUE on not ready.
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*
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****************************************************************/
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static int WaitReady (PADAPTER2000 padapter)
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{
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ULONG timer;
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timer = jiffies + TIMEOUT_COMMAND; // calculate the timeout value
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do {
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if ( !inb_p (padapter->cmd) )
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return FALSE;
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} while ( timer > jiffies ); // test for timeout
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return TRUE;
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}
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/****************************************************************
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* Name: OpDone :LOCAL
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*
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* Description: Clean up operation and issue done to caller.
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*
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* Parameters: SCpnt - Pointer to SCSI command structure.
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* status - Caller status.
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*
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* Returns: Nothing.
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*
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****************************************************************/
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static void OpDone (Scsi_Cmnd *SCpnt, ULONG status)
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{
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SCpnt->result = status;
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SCpnt->scsi_done (SCpnt);
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}
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/****************************************************************
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* Name: Command :LOCAL
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*
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* Description: Issue queued command to the PCI-2000.
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*
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* Parameters: padapter - Pointer to adapter information structure.
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* cmd - PCI-2000 command byte.
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*
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* Returns: Non-zero command tag if operation is accepted.
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*
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****************************************************************/
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static UCHAR Command (PADAPTER2000 padapter, UCHAR cmd)
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{
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outb_p (cmd, padapter->cmd);
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if ( WaitReady (padapter) )
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return 0;
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if ( inw_p (padapter->mb0) )
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return 0;
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return inb_p (padapter->mb1);
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}
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/****************************************************************
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* Name: BuildSgList :LOCAL
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*
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* Description: Build the scatter gather list for controller.
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*
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* Parameters: SCpnt - Pointer to SCSI command structure.
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* padapter - Pointer to adapter information structure.
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* pdev - Pointer to adapter device structure.
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*
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* Returns: Non-zero in not scatter gather.
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*
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****************************************************************/
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static int BuildSgList (Scsi_Cmnd *SCpnt, PADAPTER2000 padapter, PDEV2000 pdev)
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{
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int z;
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if ( SCpnt->use_sg )
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{
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for ( z = 0; z < SCpnt->use_sg; z++ )
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{
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pdev->scatGath[z].address = virt_to_bus (((struct scatterlist *)SCpnt->request_buffer)[z].address);
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pdev->scatGath[z].length = ((struct scatterlist *)SCpnt->request_buffer)[z].length;
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}
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outl (virt_to_bus (pdev->scatGath), padapter->mb2);
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outl ((SCpnt->use_sg << 24) | SCpnt->request_bufflen, padapter->mb3);
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return FALSE;
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}
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outl (virt_to_bus (SCpnt->request_buffer), padapter->mb2);
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outl (SCpnt->request_bufflen, padapter->mb3);
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return TRUE;
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}
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/*********************************************************************
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* Name: PsiRaidCmd
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*
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* Description: Execute a simple command.
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*
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* Parameters: padapter - Pointer to adapter control structure.
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* cmd - Roy command byte.
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*
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* Returns: Return error status.
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*
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********************************************************************/
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static int PsiRaidCmd (PADAPTER2000 padapter, char cmd)
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{
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if ( WaitReady (padapter) ) // test for command register ready
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return DID_TIME_OUT;
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outb_p (cmd, padapter->cmd); // issue command
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if ( WaitReady (padapter) ) // wait for adapter ready
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return DID_TIME_OUT;
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return DID_OK;
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}
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/****************************************************************
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* Name: Irq_Handler :LOCAL
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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 = NULL; // Pointer to host data block
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PADAPTER2000 padapter; // Pointer to adapter control structure
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PDEV2000 pdev;
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Scsi_Cmnd *SCpnt;
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UCHAR tag = 0;
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UCHAR tag0;
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ULONG error;
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int pun;
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int bus;
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int z;
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DEB(printk ("\npci2000 recieved interrupt "));
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for ( z = 0; z < NumAdapters; z++ ) // scan for interrupt to process
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{
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if ( PsiHost[z]->irq == (UCHAR)(irq & 0xFF) )
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{
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tag = inb_p (HOSTDATA(PsiHost[z])->tag);
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if ( tag )
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{
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shost = PsiHost[z];
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break;
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}
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}
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}
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if ( !shost )
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{
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DEB (printk ("\npci2000: not my interrupt"));
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return;
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}
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padapter = HOSTDATA(shost);
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tag0 = tag & 0x7F; // mask off the error bit
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for ( bus = 0; bus < MAX_BUS; bus++ ) // scan the busses
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{
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for ( pun = 0; pun < MAX_UNITS; pun++ ) // scan the targets
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{
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pdev = &padapter->dev[bus][pun];
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if ( !pdev->tag )
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continue;
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if ( pdev->tag == tag0 ) // is this it?
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{
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pdev->tag = 0;
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SCpnt = pdev->SCpnt;
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goto irqProceed;
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}
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}
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| 271 |
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}
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| 272 |
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| 273 |
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outb_p (0xFF, padapter->tag); // clear the op interrupt
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outb_p (CMD_DONE, padapter->cmd); // complete the op
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| 275 |
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return; // done, but, with what?
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irqProceed:;
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| 278 |
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if ( tag & ERR08_TAGGED ) // is there an error here?
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| 279 |
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{
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| 280 |
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if ( WaitReady (padapter) )
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{
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| 282 |
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OpDone (SCpnt, DID_TIME_OUT << 16);
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| 283 |
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return;
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| 284 |
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}
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| 285 |
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| 286 |
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outb_p (tag0, padapter->mb0); // get real error code
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outb_p (CMD_ERROR, padapter->cmd);
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| 288 |
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if ( WaitReady (padapter) ) // wait for controller to suck up the op
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| 289 |
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{
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| 290 |
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OpDone (SCpnt, DID_TIME_OUT << 16);
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| 291 |
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return;
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| 292 |
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}
|
| 293 |
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| 294 |
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error = inl (padapter->mb0); // get error data
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| 295 |
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outb_p (0xFF, padapter->tag); // clear the op interrupt
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| 296 |
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outb_p (CMD_DONE, padapter->cmd); // complete the op
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| 297 |
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| 298 |
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DEB (printk ("status: %lX ", error));
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| 299 |
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if ( error == 0x00020002 ) // is this error a check condition?
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| 300 |
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{
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| 301 |
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if ( bus ) // are we doint SCSI commands?
|
| 302 |
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{
|
| 303 |
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OpDone (SCpnt, (DID_OK << 16) | 2);
|
| 304 |
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return;
|
| 305 |
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}
|
| 306 |
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if ( *SCpnt->cmnd == SCSIOP_TEST_UNIT_READY )
|
| 307 |
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OpDone (SCpnt, (DRIVER_SENSE << 24) | (DID_OK << 16) | 2); // test caller we have sense data too
|
| 308 |
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else
|
| 309 |
|
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OpDone (SCpnt, DID_ERROR << 16);
|
| 310 |
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return;
|
| 311 |
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}
|
| 312 |
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OpDone (SCpnt, DID_ERROR << 16);
|
| 313 |
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return;
|
| 314 |
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}
|
| 315 |
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|
| 316 |
|
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outb_p (0xFF, padapter->tag); // clear the op interrupt
|
| 317 |
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outb_p (CMD_DONE, padapter->cmd); // complete the op
|
| 318 |
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OpDone (SCpnt, DID_OK << 16);
|
| 319 |
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}
|
| 320 |
|
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/****************************************************************
|
| 321 |
|
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* Name: Pci2220i_QueueCommand
|
| 322 |
|
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*
|
| 323 |
|
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* Description: Process a queued command from the SCSI manager.
|
| 324 |
|
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*
|
| 325 |
|
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* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 326 |
|
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* done - Pointer to done function to call.
|
| 327 |
|
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*
|
| 328 |
|
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* Returns: Status code.
|
| 329 |
|
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*
|
| 330 |
|
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****************************************************************/
|
| 331 |
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int Pci2000_QueueCommand (Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
|
| 332 |
|
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{
|
| 333 |
|
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UCHAR *cdb = (UCHAR *)SCpnt->cmnd; // Pointer to SCSI CDB
|
| 334 |
|
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PADAPTER2000 padapter = HOSTDATA(SCpnt->host); // Pointer to adapter control structure
|
| 335 |
|
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int rc = -1; // command return code
|
| 336 |
|
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UCHAR bus = SCpnt->channel;
|
| 337 |
|
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UCHAR pun = SCpnt->target;
|
| 338 |
|
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UCHAR lun = SCpnt->lun;
|
| 339 |
|
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UCHAR cmd;
|
| 340 |
|
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PDEV2000 pdev = &padapter->dev[bus][pun];
|
| 341 |
|
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|
| 342 |
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if ( !done )
|
| 343 |
|
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{
|
| 344 |
|
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printk("pci2000_queuecommand: %02X: done can't be NULL\n", *cdb);
|
| 345 |
|
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return 0;
|
| 346 |
|
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}
|
| 347 |
|
|
|
| 348 |
|
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SCpnt->scsi_done = done;
|
| 349 |
|
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pdev->SCpnt = SCpnt; // Save this command data
|
| 350 |
|
|
|
| 351 |
|
|
if ( WaitReady (padapter) )
|
| 352 |
|
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{
|
| 353 |
|
|
rc = DID_ERROR;
|
| 354 |
|
|
goto finished;
|
| 355 |
|
|
}
|
| 356 |
|
|
|
| 357 |
|
|
outw_p (pun | (lun << 8), padapter->mb0);
|
| 358 |
|
|
|
| 359 |
|
|
if ( bus )
|
| 360 |
|
|
{
|
| 361 |
|
|
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]));
|
| 362 |
|
|
DEB (if(*cdb) printk ("\ntimeout_per_command: %d, timeout_total: %d, timeout: %d, internal_timout: %d", SCpnt->timeout_per_command,
|
| 363 |
|
|
SCpnt->timeout_total, SCpnt->timeout, SCpnt->internal_timeout));
|
| 364 |
|
|
outl (SCpnt->timeout_per_command, padapter->mb1);
|
| 365 |
|
|
outb_p (CMD_SCSI_TIMEOUT, padapter->cmd);
|
| 366 |
|
|
if ( WaitReady (padapter) )
|
| 367 |
|
|
{
|
| 368 |
|
|
rc = DID_ERROR;
|
| 369 |
|
|
goto finished;
|
| 370 |
|
|
}
|
| 371 |
|
|
|
| 372 |
|
|
outw_p (pun | (lun << 8), padapter->mb0);
|
| 373 |
|
|
outw_p (SCpnt->cmd_len << 8, padapter->mb0 + 2);
|
| 374 |
|
|
outl (virt_to_bus (cdb), padapter->mb1);
|
| 375 |
|
|
if ( BuildSgList (SCpnt, padapter, pdev) )
|
| 376 |
|
|
cmd = CMD_SCSI_THRU;
|
| 377 |
|
|
else
|
| 378 |
|
|
cmd = CMD_SCSI_THRU_SG;
|
| 379 |
|
|
if ( (pdev->tag = Command (padapter, cmd)) == 0 )
|
| 380 |
|
|
rc = DID_TIME_OUT;
|
| 381 |
|
|
goto finished;
|
| 382 |
|
|
}
|
| 383 |
|
|
else
|
| 384 |
|
|
{
|
| 385 |
|
|
if ( lun )
|
| 386 |
|
|
{
|
| 387 |
|
|
rc = DID_BAD_TARGET;
|
| 388 |
|
|
goto finished;
|
| 389 |
|
|
}
|
| 390 |
|
|
}
|
| 391 |
|
|
|
| 392 |
|
|
switch ( *cdb )
|
| 393 |
|
|
{
|
| 394 |
|
|
case SCSIOP_INQUIRY: // inquiry CDB
|
| 395 |
|
|
if ( cdb[2] == SC_MY_RAID )
|
| 396 |
|
|
{
|
| 397 |
|
|
switch ( cdb[3] )
|
| 398 |
|
|
{
|
| 399 |
|
|
case MY_SCSI_REBUILD:
|
| 400 |
|
|
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_REBUILD) << 16);
|
| 401 |
|
|
return 0;
|
| 402 |
|
|
case MY_SCSI_ALARMMUTE:
|
| 403 |
|
|
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_MUTE) << 16);
|
| 404 |
|
|
return 0;
|
| 405 |
|
|
case MY_SCSI_DEMOFAIL:
|
| 406 |
|
|
OpDone (SCpnt, PsiRaidCmd (padapter, CMD_RAID_FAIL) << 16);
|
| 407 |
|
|
return 0;
|
| 408 |
|
|
default:
|
| 409 |
|
|
if ( SCpnt->use_sg )
|
| 410 |
|
|
{
|
| 411 |
|
|
rc = DID_ERROR;
|
| 412 |
|
|
goto finished;
|
| 413 |
|
|
}
|
| 414 |
|
|
else
|
| 415 |
|
|
outl (virt_to_bus (SCpnt->request_buffer), padapter->mb2);
|
| 416 |
|
|
outl (cdb[5], padapter->mb0);
|
| 417 |
|
|
outl (cdb[3], padapter->mb3);
|
| 418 |
|
|
cmd = CMD_DASD_RAID_RQ;
|
| 419 |
|
|
break;
|
| 420 |
|
|
}
|
| 421 |
|
|
break;
|
| 422 |
|
|
}
|
| 423 |
|
|
|
| 424 |
|
|
if ( SCpnt->use_sg )
|
| 425 |
|
|
{
|
| 426 |
|
|
outl (virt_to_bus (((struct scatterlist *)(SCpnt->request_buffer))->address), padapter->mb2);
|
| 427 |
|
|
}
|
| 428 |
|
|
else
|
| 429 |
|
|
{
|
| 430 |
|
|
outl (virt_to_bus (SCpnt->request_buffer), padapter->mb2);
|
| 431 |
|
|
}
|
| 432 |
|
|
outl (SCpnt->request_bufflen, padapter->mb3);
|
| 433 |
|
|
cmd = CMD_DASD_SCSI_INQ;
|
| 434 |
|
|
break;
|
| 435 |
|
|
|
| 436 |
|
|
case SCSIOP_TEST_UNIT_READY: // test unit ready CDB
|
| 437 |
|
|
outl (virt_to_bus (SCpnt->sense_buffer), padapter->mb2);
|
| 438 |
|
|
outl (sizeof (SCpnt->sense_buffer), padapter->mb3);
|
| 439 |
|
|
cmd = CMD_TEST_READY;
|
| 440 |
|
|
break;
|
| 441 |
|
|
|
| 442 |
|
|
case SCSIOP_READ_CAPACITY: // read capctiy CDB
|
| 443 |
|
|
if ( SCpnt->use_sg )
|
| 444 |
|
|
{
|
| 445 |
|
|
outl (virt_to_bus (((struct scatterlist *)(SCpnt->request_buffer))->address), padapter->mb2);
|
| 446 |
|
|
}
|
| 447 |
|
|
else
|
| 448 |
|
|
{
|
| 449 |
|
|
outl (virt_to_bus (SCpnt->request_buffer), padapter->mb2);
|
| 450 |
|
|
}
|
| 451 |
|
|
outl (8, padapter->mb3);
|
| 452 |
|
|
cmd = CMD_DASD_CAP;
|
| 453 |
|
|
break;
|
| 454 |
|
|
case SCSIOP_VERIFY: // verify CDB
|
| 455 |
|
|
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
|
| 456 |
|
|
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
|
| 457 |
|
|
cmd = CMD_READ_SG;
|
| 458 |
|
|
break;
|
| 459 |
|
|
case SCSIOP_READ: // read10 CDB
|
| 460 |
|
|
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
|
| 461 |
|
|
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
|
| 462 |
|
|
if ( BuildSgList (SCpnt, padapter, pdev) )
|
| 463 |
|
|
cmd = CMD_READ;
|
| 464 |
|
|
else
|
| 465 |
|
|
cmd = CMD_READ_SG;
|
| 466 |
|
|
break;
|
| 467 |
|
|
case SCSIOP_READ6: // read6 CDB
|
| 468 |
|
|
outw_p (cdb[4], padapter->mb0 + 2);
|
| 469 |
|
|
outl ((SCSI2LONG (&cdb[1])) & 0x001FFFFF, padapter->mb1);
|
| 470 |
|
|
if ( BuildSgList (SCpnt, padapter, pdev) )
|
| 471 |
|
|
cmd = CMD_READ;
|
| 472 |
|
|
else
|
| 473 |
|
|
cmd = CMD_READ_SG;
|
| 474 |
|
|
break;
|
| 475 |
|
|
case SCSIOP_WRITE: // write10 CDB
|
| 476 |
|
|
outw_p ((USHORT)cdb[8] | ((USHORT)cdb[7] << 8), padapter->mb0 + 2);
|
| 477 |
|
|
outl (XSCSI2LONG (&cdb[2]), padapter->mb1);
|
| 478 |
|
|
if ( BuildSgList (SCpnt, padapter, pdev) )
|
| 479 |
|
|
cmd = CMD_WRITE;
|
| 480 |
|
|
else
|
| 481 |
|
|
cmd = CMD_WRITE_SG;
|
| 482 |
|
|
break;
|
| 483 |
|
|
case SCSIOP_WRITE6: // write6 CDB
|
| 484 |
|
|
outw_p (cdb[4], padapter->mb0 + 2);
|
| 485 |
|
|
outl ((SCSI2LONG (&cdb[1])) & 0x001FFFFF, padapter->mb1);
|
| 486 |
|
|
if ( BuildSgList (SCpnt, padapter, pdev) )
|
| 487 |
|
|
cmd = CMD_WRITE;
|
| 488 |
|
|
else
|
| 489 |
|
|
cmd = CMD_WRITE_SG;
|
| 490 |
|
|
break;
|
| 491 |
|
|
case SCSIOP_START_STOP_UNIT:
|
| 492 |
|
|
cmd = CMD_EJECT_MEDIA;
|
| 493 |
|
|
break;
|
| 494 |
|
|
case SCSIOP_MEDIUM_REMOVAL:
|
| 495 |
|
|
switch ( cdb[4] )
|
| 496 |
|
|
{
|
| 497 |
|
|
case 0:
|
| 498 |
|
|
cmd = CMD_UNLOCK_DOOR;
|
| 499 |
|
|
break;
|
| 500 |
|
|
case 1:
|
| 501 |
|
|
cmd = CMD_LOCK_DOOR;
|
| 502 |
|
|
break;
|
| 503 |
|
|
default:
|
| 504 |
|
|
cmd = 0;
|
| 505 |
|
|
break;
|
| 506 |
|
|
}
|
| 507 |
|
|
if ( cmd )
|
| 508 |
|
|
break;
|
| 509 |
|
|
default:
|
| 510 |
|
|
DEB (printk ("pci2220i_queuecommand: Unsupported command %02X\n", *cdb));
|
| 511 |
|
|
OpDone (SCpnt, DID_ERROR << 16);
|
| 512 |
|
|
return 0;
|
| 513 |
|
|
}
|
| 514 |
|
|
|
| 515 |
|
|
if ( (pdev->tag = Command (padapter, cmd)) == 0 )
|
| 516 |
|
|
rc = DID_TIME_OUT;
|
| 517 |
|
|
finished:;
|
| 518 |
|
|
if ( rc != -1 )
|
| 519 |
|
|
OpDone (SCpnt, rc << 16);
|
| 520 |
|
|
return 0;
|
| 521 |
|
|
}
|
| 522 |
|
|
/****************************************************************
|
| 523 |
|
|
* Name: internal_done :LOCAL
|
| 524 |
|
|
*
|
| 525 |
|
|
* Description: Done handler for non-queued commands
|
| 526 |
|
|
*
|
| 527 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 528 |
|
|
*
|
| 529 |
|
|
* Returns: Nothing.
|
| 530 |
|
|
*
|
| 531 |
|
|
****************************************************************/
|
| 532 |
|
|
static void internal_done (Scsi_Cmnd * SCpnt)
|
| 533 |
|
|
{
|
| 534 |
|
|
SCpnt->SCp.Status++;
|
| 535 |
|
|
}
|
| 536 |
|
|
/****************************************************************
|
| 537 |
|
|
* Name: Pci2220i_Command
|
| 538 |
|
|
*
|
| 539 |
|
|
* Description: Process a command from the SCSI manager.
|
| 540 |
|
|
*
|
| 541 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 542 |
|
|
*
|
| 543 |
|
|
* Returns: Status code.
|
| 544 |
|
|
*
|
| 545 |
|
|
****************************************************************/
|
| 546 |
|
|
int Pci2000_Command (Scsi_Cmnd *SCpnt)
|
| 547 |
|
|
{
|
| 548 |
|
|
DEB(printk("pci2000_command: ..calling pci2000_queuecommand\n"));
|
| 549 |
|
|
|
| 550 |
|
|
Pci2000_QueueCommand (SCpnt, internal_done);
|
| 551 |
|
|
|
| 552 |
|
|
SCpnt->SCp.Status = 0;
|
| 553 |
|
|
while (!SCpnt->SCp.Status)
|
| 554 |
|
|
barrier ();
|
| 555 |
|
|
return SCpnt->result;
|
| 556 |
|
|
}
|
| 557 |
|
|
/****************************************************************
|
| 558 |
|
|
* Name: Pci2220i_Detect
|
| 559 |
|
|
*
|
| 560 |
|
|
* Description: Detect and initialize our boards.
|
| 561 |
|
|
*
|
| 562 |
|
|
* Parameters: tpnt - Pointer to SCSI host template structure.
|
| 563 |
|
|
*
|
| 564 |
|
|
* Returns: Number of adapters found.
|
| 565 |
|
|
*
|
| 566 |
|
|
****************************************************************/
|
| 567 |
|
|
int Pci2000_Detect (Scsi_Host_Template *tpnt)
|
| 568 |
|
|
{
|
| 569 |
|
|
int pci_index = 0;
|
| 570 |
|
|
struct Scsi_Host *pshost;
|
| 571 |
|
|
PADAPTER2000 padapter;
|
| 572 |
|
|
int z, zz;
|
| 573 |
|
|
int setirq;
|
| 574 |
|
|
|
| 575 |
|
|
if ( pcibios_present () )
|
| 576 |
|
|
{
|
| 577 |
|
|
for ( pci_index = 0; pci_index <= MAXADAPTER; ++pci_index )
|
| 578 |
|
|
{
|
| 579 |
|
|
UCHAR pci_bus, pci_device_fn;
|
| 580 |
|
|
|
| 581 |
|
|
if ( pcibios_find_device (VENDOR_PSI, DEVICE_ROY_1, pci_index, &pci_bus, &pci_device_fn) != 0 )
|
| 582 |
|
|
break;
|
| 583 |
|
|
|
| 584 |
|
|
pshost = scsi_register (tpnt, sizeof(ADAPTER2000));
|
| 585 |
|
|
padapter = HOSTDATA(pshost);
|
| 586 |
|
|
|
| 587 |
|
|
pcibios_read_config_word (pci_bus, pci_device_fn, PCI_BASE_ADDRESS_1, &padapter->basePort);
|
| 588 |
|
|
padapter->basePort &= 0xFFFE;
|
| 589 |
|
|
DEB (printk ("\nBase Regs = %#04X", padapter->basePort)); // get the base I/O port address
|
| 590 |
|
|
padapter->mb0 = padapter->basePort + RTR_MAILBOX; // get the 32 bit mail boxes
|
| 591 |
|
|
padapter->mb1 = padapter->basePort + RTR_MAILBOX + 4;
|
| 592 |
|
|
padapter->mb2 = padapter->basePort + RTR_MAILBOX + 8;
|
| 593 |
|
|
padapter->mb3 = padapter->basePort + RTR_MAILBOX + 12;
|
| 594 |
|
|
padapter->mb4 = padapter->basePort + RTR_MAILBOX + 16;
|
| 595 |
|
|
padapter->cmd = padapter->basePort + RTR_LOCAL_DOORBELL; // command register
|
| 596 |
|
|
padapter->tag = padapter->basePort + RTR_PCI_DOORBELL; // tag/response register
|
| 597 |
|
|
|
| 598 |
|
|
if ( WaitReady (padapter) )
|
| 599 |
|
|
goto unregister;
|
| 600 |
|
|
outb_p (0x84, padapter->mb0);
|
| 601 |
|
|
outb_p (CMD_SPECIFY, padapter->cmd);
|
| 602 |
|
|
if ( WaitReady (padapter) )
|
| 603 |
|
|
goto unregister;
|
| 604 |
|
|
|
| 605 |
|
|
pcibios_read_config_byte (pci_bus, pci_device_fn, PCI_INTERRUPT_LINE, &pshost->irq);
|
| 606 |
|
|
setirq = 1;
|
| 607 |
|
|
for ( z = 0; z < pci_index; z++ ) // scan for shared interrupts
|
| 608 |
|
|
{
|
| 609 |
|
|
if ( PsiHost[z]->irq == pshost->irq ) // if shared then, don't posses
|
| 610 |
|
|
setirq = 0;
|
| 611 |
|
|
}
|
| 612 |
|
|
if ( setirq ) // if not shared, posses
|
| 613 |
|
|
{
|
| 614 |
|
|
if ( request_irq (pshost->irq, Irq_Handler, 0, "pci2000", NULL) )
|
| 615 |
|
|
{
|
| 616 |
|
|
printk ("Unable to allocate IRQ for PSI-2000 controller.\n");
|
| 617 |
|
|
goto unregister;
|
| 618 |
|
|
}
|
| 619 |
|
|
}
|
| 620 |
|
|
PsiHost[pci_index] = pshost; // save SCSI_HOST pointer
|
| 621 |
|
|
|
| 622 |
|
|
pshost->unique_id = padapter->basePort;
|
| 623 |
|
|
pshost->max_id = 16;
|
| 624 |
|
|
pshost->max_channel = 1;
|
| 625 |
|
|
|
| 626 |
|
|
for ( zz = 0; zz < MAX_BUS; zz++ )
|
| 627 |
|
|
for ( z = 0; z < MAX_UNITS; z++ )
|
| 628 |
|
|
padapter->dev[zz][z].tag = 0;
|
| 629 |
|
|
|
| 630 |
|
|
printk("\nPSI-2000 Intelligent Storage SCSI CONTROLLER: at I/O = %X IRQ = %d\n", padapter->basePort, pshost->irq);
|
| 631 |
|
|
printk("Version %s, Compiled %s %s\n\n", PCI2000_VERSION, __DATE__, __TIME__);
|
| 632 |
|
|
continue;
|
| 633 |
|
|
unregister:;
|
| 634 |
|
|
scsi_unregister (pshost);
|
| 635 |
|
|
}
|
| 636 |
|
|
}
|
| 637 |
|
|
NumAdapters = pci_index;
|
| 638 |
|
|
return pci_index;
|
| 639 |
|
|
}
|
| 640 |
|
|
/****************************************************************
|
| 641 |
|
|
* Name: Pci2220i_Abort
|
| 642 |
|
|
*
|
| 643 |
|
|
* Description: Process the Abort command from the SCSI manager.
|
| 644 |
|
|
*
|
| 645 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 646 |
|
|
*
|
| 647 |
|
|
* Returns: Allways snooze.
|
| 648 |
|
|
*
|
| 649 |
|
|
****************************************************************/
|
| 650 |
|
|
int Pci2000_Abort (Scsi_Cmnd *SCpnt)
|
| 651 |
|
|
{
|
| 652 |
|
|
DEB (printk ("pci2000_abort\n"));
|
| 653 |
|
|
return SCSI_ABORT_SNOOZE;
|
| 654 |
|
|
}
|
| 655 |
|
|
/****************************************************************
|
| 656 |
|
|
* Name: Pci2220i_Reset
|
| 657 |
|
|
*
|
| 658 |
|
|
* Description: Process the Reset command from the SCSI manager.
|
| 659 |
|
|
*
|
| 660 |
|
|
* Parameters: SCpnt - Pointer to SCSI command structure.
|
| 661 |
|
|
* flags - Flags about the reset command
|
| 662 |
|
|
*
|
| 663 |
|
|
* Returns: No active command at this time, so this means
|
| 664 |
|
|
* that each time we got some kind of response the
|
| 665 |
|
|
* last time through. Tell the mid-level code to
|
| 666 |
|
|
* request sense information in order to decide what
|
| 667 |
|
|
* to do next.
|
| 668 |
|
|
*
|
| 669 |
|
|
****************************************************************/
|
| 670 |
|
|
int Pci2000_Reset (Scsi_Cmnd *SCpnt, unsigned int reset_flags)
|
| 671 |
|
|
{
|
| 672 |
|
|
return SCSI_RESET_PUNT;
|
| 673 |
|
|
}
|
| 674 |
|
|
|
| 675 |
|
|
#include "sd.h"
|
| 676 |
|
|
|
| 677 |
|
|
/****************************************************************
|
| 678 |
|
|
* Name: Pci2220i_BiosParam
|
| 679 |
|
|
*
|
| 680 |
|
|
* Description: Process the biosparam request from the SCSI manager to
|
| 681 |
|
|
* return C/H/S data.
|
| 682 |
|
|
*
|
| 683 |
|
|
* Parameters: disk - Pointer to SCSI disk structure.
|
| 684 |
|
|
* dev - Major/minor number from kernel.
|
| 685 |
|
|
* geom - Pointer to integer array to place geometry data.
|
| 686 |
|
|
*
|
| 687 |
|
|
* Returns: zero.
|
| 688 |
|
|
*
|
| 689 |
|
|
****************************************************************/
|
| 690 |
|
|
int Pci2000_BiosParam (Scsi_Disk *disk, kdev_t dev, int geom[])
|
| 691 |
|
|
{
|
| 692 |
|
|
PADAPTER2000 padapter;
|
| 693 |
|
|
|
| 694 |
|
|
padapter = HOSTDATA(disk->device->host);
|
| 695 |
|
|
|
| 696 |
|
|
if ( WaitReady (padapter) )
|
| 697 |
|
|
return 0;
|
| 698 |
|
|
outb_p (disk->device->id, padapter->mb0);
|
| 699 |
|
|
outb_p (CMD_GET_PARMS, padapter->cmd);
|
| 700 |
|
|
if ( WaitReady (padapter) )
|
| 701 |
|
|
return 0;
|
| 702 |
|
|
|
| 703 |
|
|
geom[0] = inb_p (padapter->mb2 + 3);
|
| 704 |
|
|
geom[1] = inb_p (padapter->mb2 + 2);
|
| 705 |
|
|
geom[2] = inw_p (padapter->mb2);
|
| 706 |
|
|
return 0;
|
| 707 |
|
|
}
|
| 708 |
|
|
|
| 709 |
|
|
|
| 710 |
|
|
#ifdef MODULE
|
| 711 |
|
|
/* Eventually this will go into an include file, but this will be later */
|
| 712 |
|
|
Scsi_Host_Template driver_template = PCI2000;
|
| 713 |
|
|
|
| 714 |
|
|
#include "scsi_module.c"
|
| 715 |
|
|
#endif
|
| 716 |
|
|
|
