patch-2.1.37 linux/drivers/scsi/tmscsim.c
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- Lines: 1929
- Date:
Mon May 12 10:35:42 1997
- Orig file:
v2.1.36/linux/drivers/scsi/tmscsim.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.1.36/linux/drivers/scsi/tmscsim.c linux/drivers/scsi/tmscsim.c
@@ -0,0 +1,1928 @@
+/***********************************************************************
+ * FILE NAME : TMSCSIM.C *
+ * BY : C.L. Huang, ching@tekram.com.tw *
+ * Description: Device Driver for Tekram DC-390(T) PCI SCSI *
+ * Bus Master Host Adapter *
+ * (C)Copyright 1995-1996 Tekram Technology Co., Ltd. *
+ ***********************************************************************/
+/* Minor enhancements and bugfixes by *
+ * Kurt Garloff <K.Garloff@ping.de> *
+ ***********************************************************************/
+/* HISTORY: *
+ * *
+ * REV# DATE NAME DESCRIPTION *
+ * 1.00 04/24/96 CLH First release *
+ * 1.01 06/12/96 CLH Fixed bug of Media Change for Removable *
+ * Device, scan all LUN. Support Pre2.0.10 *
+ * 1.02 06/18/96 CLH Fixed bug of Command timeout ... *
+ * 1.03 09/25/96 KG Added tmscsim_proc_info() *
+ * 1.04 10/11/96 CLH Updating for support KV 2.0.x *
+ * 1.05 10/18/96 KG Fixed bug in DC390_abort(null ptr deref)*
+ * 1.06 10/25/96 KG Fixed module support *
+ * 1.07 11/09/96 KG Fixed tmscsim_proc_info() *
+ * 1.08 11/18/96 KG Fixed null ptr in DC390_Disconnect() *
+ * 1.09 11/30/96 KG Added register the allocated IO space *
+ * 1.10 12/05/96 CLH Modified tmscsim_proc_info(), and reset *
+ * pending interrupt in DC390_detect() *
+ ***********************************************************************/
+
+
+#define DC390_DEBUG
+
+#define SCSI_MALLOC
+
+#ifdef MODULE
+#include <linux/module.h>
+#endif
+
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/system.h>
+#include <linux/delay.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/bios32.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/config.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < 66354 /* 1.3.50 */
+#include "../block/blk.h"
+#else
+#include <linux/blk.h>
+#endif
+
+#include "scsi.h"
+#include "hosts.h"
+#include "tmscsim.h"
+#include "constants.h"
+#include "sd.h"
+#include <linux/stat.h>
+
+#include "dc390.h"
+
+#define PCI_DEVICE_ID_AMD53C974 PCI_DEVICE_ID_AMD_SCSI
+
+
+#ifndef VERSION_ELF_1_2_13
+struct proc_dir_entry proc_scsi_tmscsim ={
+ PROC_SCSI_DC390T, 7 ,"tmscsim",
+ S_IFDIR | S_IRUGO | S_IXUGO, 2
+ };
+#endif
+
+static USHORT DC390_StartSCSI( PACB pACB, PDCB pDCB, PSRB pSRB );
+static void DC390_DataOut_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_DataIn_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_Command_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_Status_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_MsgOut_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_MsgIn_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_DataOutPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_DataInPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_CommandPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_StatusPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_MsgOutPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_MsgInPhase( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_Nop_0( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+static void DC390_Nop_1( PACB pACB, PSRB pSRB, PUCHAR psstatus);
+
+static void SetXferRate( PACB pACB, PDCB pDCB );
+static void DC390_Disconnect( PACB pACB );
+static void DC390_Reselect( PACB pACB );
+static void SRBdone( PACB pACB, PDCB pDCB, PSRB pSRB );
+static void DoingSRB_Done( PACB pACB );
+static void DC390_ScsiRstDetect( PACB pACB );
+static void DC390_ResetSCSIBus( PACB pACB );
+static void RequestSense( PACB pACB, PDCB pDCB, PSRB pSRB );
+static void EnableMsgOut2( PACB pACB, PSRB pSRB );
+static void EnableMsgOut( PACB pACB, PSRB pSRB );
+static void DC390_InvalidCmd( PACB pACB );
+
+int DC390_initAdapter( PSH psh, ULONG io_port, UCHAR Irq, USHORT index );
+void DC390_initDCB( PACB pACB, PDCB pDCB, PSCSICMD cmd );
+
+#ifdef MODULE
+static int DC390_release(struct Scsi_Host *host);
+static int DC390_shutdown (struct Scsi_Host *host);
+#endif
+
+
+static PSHT pSHT_start = NULL;
+static PSH pSH_start = NULL;
+static PSH pSH_current = NULL;
+static PACB pACB_start= NULL;
+static PACB pACB_current = NULL;
+static PDCB pPrevDCB = NULL;
+static USHORT adapterCnt = 0;
+static USHORT InitialTime = 0;
+static USHORT CurrSyncOffset = 0;
+static ULONG mech1addr;
+static UCHAR mech2bus, mech2Agent, mech2CfgSPenR;
+
+static PVOID DC390_phase0[]={
+ DC390_DataOut_0,
+ DC390_DataIn_0,
+ DC390_Command_0,
+ DC390_Status_0,
+ DC390_Nop_0,
+ DC390_Nop_0,
+ DC390_MsgOut_0,
+ DC390_MsgIn_0,
+ DC390_Nop_1
+ };
+
+static PVOID DC390_phase1[]={
+ DC390_DataOutPhase,
+ DC390_DataInPhase,
+ DC390_CommandPhase,
+ DC390_StatusPhase,
+ DC390_Nop_0,
+ DC390_Nop_0,
+ DC390_MsgOutPhase,
+ DC390_MsgInPhase,
+ DC390_Nop_1,
+ };
+
+UCHAR eepromBuf[MAX_ADAPTER_NUM][128];
+
+
+UCHAR clock_period1[] = {4, 5, 6, 7, 8, 10, 13, 20};
+
+UCHAR baddevname1[2][28] ={
+ "SEAGATE ST3390N 9546",
+ "HP C3323-300 4269"};
+
+#define BADDEVCNT 2
+
+
+/***********************************************************************
+ *
+ *
+ *
+ **********************************************************************/
+static void
+QLinkcmd( PSCSICMD cmd, PDCB pDCB )
+{
+ ULONG flags;
+ PSCSICMD pcmd;
+
+ save_flags(flags);
+ cli();
+
+ if( !pDCB->QIORBCnt )
+ {
+ pDCB->pQIORBhead = cmd;
+ pDCB->pQIORBtail = cmd;
+ pDCB->QIORBCnt++;
+ cmd->next = NULL;
+ }
+ else
+ {
+ pcmd = pDCB->pQIORBtail;
+ pcmd->next = cmd;
+ pDCB->pQIORBtail = cmd;
+ pDCB->QIORBCnt++;
+ cmd->next = NULL;
+ }
+
+ restore_flags(flags);
+}
+
+
+static PSCSICMD
+Getcmd( PDCB pDCB )
+{
+ ULONG flags;
+ PSCSICMD pcmd;
+
+ save_flags(flags);
+ cli();
+
+ pcmd = pDCB->pQIORBhead;
+ pDCB->pQIORBhead = pcmd->next;
+ pcmd->next = NULL;
+ pDCB->QIORBCnt--;
+
+ restore_flags(flags);
+ return( pcmd );
+}
+
+
+static PSRB
+GetSRB( PACB pACB )
+{
+ ULONG flags;
+ PSRB pSRB;
+
+ save_flags(flags);
+ cli();
+
+ pSRB = pACB->pFreeSRB;
+ if( pSRB )
+ {
+ pACB->pFreeSRB = pSRB->pNextSRB;
+ pSRB->pNextSRB = NULL;
+ }
+ restore_flags(flags);
+ return( pSRB );
+}
+
+
+static void
+RewaitSRB0( PDCB pDCB, PSRB pSRB )
+{
+ PSRB psrb1;
+ ULONG flags;
+
+ save_flags(flags);
+ cli();
+
+ if( (psrb1 = pDCB->pWaitingSRB) )
+ {
+ pSRB->pNextSRB = psrb1;
+ pDCB->pWaitingSRB = pSRB;
+ }
+ else
+ {
+ pSRB->pNextSRB = NULL;
+ pDCB->pWaitingSRB = pSRB;
+ pDCB->pWaitLast = pSRB;
+ }
+ restore_flags(flags);
+}
+
+
+static void
+RewaitSRB( PDCB pDCB, PSRB pSRB )
+{
+ PSRB psrb1;
+ ULONG flags;
+ UCHAR bval;
+
+ save_flags(flags);
+ cli();
+ pDCB->GoingSRBCnt--;
+ psrb1 = pDCB->pGoingSRB;
+ if( pSRB == psrb1 )
+ {
+ pDCB->pGoingSRB = psrb1->pNextSRB;
+ }
+ else
+ {
+ while( pSRB != psrb1->pNextSRB )
+ psrb1 = psrb1->pNextSRB;
+ psrb1->pNextSRB = pSRB->pNextSRB;
+ if( pSRB == pDCB->pGoingLast )
+ pDCB->pGoingLast = psrb1;
+ }
+ if( (psrb1 = pDCB->pWaitingSRB) )
+ {
+ pSRB->pNextSRB = psrb1;
+ pDCB->pWaitingSRB = pSRB;
+ }
+ else
+ {
+ pSRB->pNextSRB = NULL;
+ pDCB->pWaitingSRB = pSRB;
+ pDCB->pWaitLast = pSRB;
+ }
+
+ bval = pSRB->TagNumber;
+ pDCB->TagMask &= (~(1 << bval)); /* Free TAG number */
+ restore_flags(flags);
+}
+
+
+static void
+DoWaitingSRB( PACB pACB )
+{
+ ULONG flags;
+ PDCB ptr, ptr1;
+ PSRB pSRB;
+
+ save_flags(flags);
+ cli();
+
+ if( !(pACB->pActiveDCB) && !(pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) ) )
+ {
+ ptr = pACB->pDCBRunRobin;
+ if( !ptr )
+ {
+ ptr = pACB->pLinkDCB;
+ pACB->pDCBRunRobin = ptr;
+ }
+ ptr1 = ptr;
+ for( ;ptr1; )
+ {
+ pACB->pDCBRunRobin = ptr1->pNextDCB;
+ if( !( ptr1->MaxCommand > ptr1->GoingSRBCnt ) ||
+ !( pSRB = ptr1->pWaitingSRB ) )
+ {
+ if(pACB->pDCBRunRobin == ptr)
+ break;
+ ptr1 = ptr1->pNextDCB;
+ }
+ else
+ {
+ if( !DC390_StartSCSI(pACB, ptr1, pSRB) )
+ {
+ ptr1->GoingSRBCnt++;
+ if( ptr1->pWaitLast == pSRB )
+ {
+ ptr1->pWaitingSRB = NULL;
+ ptr1->pWaitLast = NULL;
+ }
+ else
+ {
+ ptr1->pWaitingSRB = pSRB->pNextSRB;
+ }
+ pSRB->pNextSRB = NULL;
+
+ if( ptr1->pGoingSRB )
+ ptr1->pGoingLast->pNextSRB = pSRB;
+ else
+ ptr1->pGoingSRB = pSRB;
+ ptr1->pGoingLast = pSRB;
+ }
+ break;
+ }
+ }
+ }
+ restore_flags(flags);
+ return;
+}
+
+
+static void
+SRBwaiting( PDCB pDCB, PSRB pSRB)
+{
+ if( pDCB->pWaitingSRB )
+ {
+ pDCB->pWaitLast->pNextSRB = pSRB;
+ pDCB->pWaitLast = pSRB;
+ pSRB->pNextSRB = NULL;
+ }
+ else
+ {
+ pDCB->pWaitingSRB = pSRB;
+ pDCB->pWaitLast = pSRB;
+ }
+}
+
+
+static void
+SendSRB( PSCSICMD pcmd, PACB pACB, PSRB pSRB )
+{
+ ULONG flags;
+ PDCB pDCB;
+
+ save_flags(flags);
+ cli();
+
+ pDCB = pSRB->pSRBDCB;
+ if( !(pDCB->MaxCommand > pDCB->GoingSRBCnt) || (pACB->pActiveDCB) ||
+ (pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV)) )
+ {
+ SRBwaiting(pDCB, pSRB);
+ goto SND_EXIT;
+ }
+
+ if( pDCB->pWaitingSRB )
+ {
+ SRBwaiting(pDCB, pSRB);
+/* pSRB = GetWaitingSRB(pDCB); */
+ pSRB = pDCB->pWaitingSRB;
+ pDCB->pWaitingSRB = pSRB->pNextSRB;
+ pSRB->pNextSRB = NULL;
+ }
+
+ if( !DC390_StartSCSI(pACB, pDCB, pSRB) )
+ {
+ pDCB->GoingSRBCnt++;
+ if( pDCB->pGoingSRB )
+ {
+ pDCB->pGoingLast->pNextSRB = pSRB;
+ pDCB->pGoingLast = pSRB;
+ }
+ else
+ {
+ pDCB->pGoingSRB = pSRB;
+ pDCB->pGoingLast = pSRB;
+ }
+ }
+ else
+ RewaitSRB0( pDCB, pSRB );
+
+SND_EXIT:
+ restore_flags(flags);
+ return;
+}
+
+
+/***********************************************************************
+ * Function : static int DC390_queue_command (Scsi_Cmnd *cmd,
+ * void (*done)(Scsi_Cmnd *))
+ *
+ * Purpose : enqueues a SCSI command
+ *
+ * Inputs : cmd - SCSI command, done - function called on completion, with
+ * a pointer to the command descriptor.
+ *
+ * Returns : 0
+ *
+ ***********************************************************************/
+
+int
+DC390_queue_command (Scsi_Cmnd *cmd, void (* done)(Scsi_Cmnd *))
+{
+ USHORT ioport, i;
+ Scsi_Cmnd *pcmd;
+ struct Scsi_Host *psh;
+ PACB pACB;
+ PDCB pDCB;
+ PSRB pSRB;
+ ULONG flags;
+ PUCHAR ptr,ptr1;
+
+ psh = cmd->host;
+ pACB = (PACB ) psh->hostdata;
+ ioport = pACB->IOPortBase;
+
+#ifdef DC390_DEBUG0
+/* if(pACB->scan_devices) */
+ printk("Cmd=%2x,ID=%d,LUN=%d,",cmd->cmnd[0],cmd->target,cmd->lun);
+#endif
+
+ if( (pACB->scan_devices == END_SCAN) && (cmd->cmnd[0] != INQUIRY) )
+ {
+ pACB->scan_devices = 0;
+ pPrevDCB->pNextDCB = pACB->pLinkDCB;
+ }
+ else if( (pACB->scan_devices) && (cmd->cmnd[0] == 8) )
+ {
+ pACB->scan_devices = 0;
+ pPrevDCB->pNextDCB = pACB->pLinkDCB;
+ }
+
+ if ( ( cmd->target > pACB->max_id ) || (cmd->lun > pACB->max_lun) )
+ {
+/* printk("DC390: Ignore target %d lun %d\n",
+ cmd->target, cmd->lun); */
+ cmd->result = (DID_BAD_TARGET << 16);
+ done(cmd);
+ return( 0 );
+ }
+
+ if( (pACB->scan_devices) && !(pACB->DCBmap[cmd->target] & (1 << cmd->lun)) )
+ {
+ if( pACB->DeviceCnt < MAX_DEVICES )
+ {
+ pACB->DCBmap[cmd->target] |= (1 << cmd->lun);
+ pDCB = pACB->pDCB_free;
+#ifdef DC390_DEBUG0
+ printk("pDCB=%8x,ID=%2x,", (UINT) pDCB, cmd->target);
+#endif
+ DC390_initDCB( pACB, pDCB, cmd );
+ }
+ else /* ???? */
+ {
+/* printk("DC390: Ignore target %d lun %d\n",
+ cmd->target, cmd->lun); */
+ cmd->result = (DID_BAD_TARGET << 16);
+ done(cmd);
+ return(0);
+ }
+ }
+ else if( !(pACB->scan_devices) && !(pACB->DCBmap[cmd->target] & (1 << cmd->lun)) )
+ {
+/* printk("DC390: Ignore target %d lun %d\n",
+ cmd->target, cmd->lun); */
+ cmd->result = (DID_BAD_TARGET << 16);
+ done(cmd);
+ return(0);
+ }
+ else
+ {
+ pDCB = pACB->pLinkDCB;
+ while( (pDCB->UnitSCSIID != cmd->target) ||
+ (pDCB->UnitSCSILUN != cmd->lun) )
+ {
+ pDCB = pDCB->pNextDCB;
+ }
+#ifdef DC390_DEBUG0
+ printk("pDCB=%8x,ID=%2x,", (UINT) pDCB, cmd->target);
+#endif
+ }
+
+ cmd->scsi_done = done;
+ cmd->result = 0;
+
+ save_flags(flags);
+ cli();
+
+ if( pDCB->QIORBCnt )
+ {
+ QLinkcmd( cmd, pDCB );
+ pcmd = Getcmd( pDCB );
+ }
+ else
+ pcmd = cmd;
+
+ pSRB = GetSRB( pACB );
+
+ if( !pSRB )
+ {
+ QLinkcmd( pcmd, pDCB );
+ restore_flags(flags);
+ return(0);
+ }
+
+/* BuildSRB(pSRB); */
+
+ pSRB->pSRBDCB = pDCB;
+ pSRB->pcmd = pcmd;
+ ptr = (PUCHAR) pSRB->CmdBlock;
+ ptr1 = (PUCHAR) pcmd->cmnd;
+ pSRB->ScsiCmdLen = pcmd->cmd_len;
+ for(i=0; i< pcmd->cmd_len; i++)
+ {
+ *ptr = *ptr1;
+ ptr++;
+ ptr1++;
+ }
+ if( pcmd->use_sg )
+ {
+ pSRB->SGcount = (UCHAR) pcmd->use_sg;
+ pSRB->pSegmentList = (PSGL) pcmd->request_buffer;
+ }
+ else if( pcmd->request_buffer )
+ {
+ pSRB->SGcount = 1;
+ pSRB->pSegmentList = (PSGL) &pSRB->Segmentx;
+ pSRB->Segmentx.address = (PUCHAR) pcmd->request_buffer;
+ pSRB->Segmentx.length = pcmd->request_bufflen;
+ }
+ else
+ pSRB->SGcount = 0;
+
+ pSRB->SGIndex = 0;
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = 0;
+ pSRB->MsgCnt = 0;
+ if( pDCB->DevType != TYPE_TAPE )
+ pSRB->RetryCnt = 1;
+ else
+ pSRB->RetryCnt = 0;
+ pSRB->SRBStatus = 0;
+ pSRB->SRBFlag = 0;
+ pSRB->SRBState = 0;
+ pSRB->TotalXferredLen = 0;
+ pSRB->SGPhysAddr = 0;
+ pSRB->SGToBeXferLen = 0;
+ pSRB->ScsiPhase = 0;
+ pSRB->EndMessage = 0;
+ SendSRB( pcmd, pACB, pSRB );
+
+ restore_flags(flags);
+ return(0);
+}
+
+
+static void
+DoNextCmd( PACB pACB, PDCB pDCB )
+{
+ Scsi_Cmnd *pcmd;
+ PSRB pSRB;
+ ULONG flags;
+ PUCHAR ptr,ptr1;
+ USHORT i;
+
+
+ if( pACB->ACBFlag & (RESET_DETECT+RESET_DONE+RESET_DEV) )
+ return;
+ save_flags(flags);
+ cli();
+
+ pcmd = Getcmd( pDCB );
+ pSRB = GetSRB( pACB );
+ if( !pSRB )
+ {
+ QLinkcmd( pcmd, pDCB );
+ restore_flags(flags);
+ return;
+ }
+
+ pSRB->pSRBDCB = pDCB;
+ pSRB->pcmd = pcmd;
+ ptr = (PUCHAR) pSRB->CmdBlock;
+ ptr1 = (PUCHAR) pcmd->cmnd;
+ pSRB->ScsiCmdLen = pcmd->cmd_len;
+ for(i=0; i< pcmd->cmd_len; i++)
+ {
+ *ptr = *ptr1;
+ ptr++;
+ ptr1++;
+ }
+ if( pcmd->use_sg )
+ {
+ pSRB->SGcount = (UCHAR) pcmd->use_sg;
+ pSRB->pSegmentList = (PSGL) pcmd->request_buffer;
+ }
+ else if( pcmd->request_buffer )
+ {
+ pSRB->SGcount = 1;
+ pSRB->pSegmentList = (PSGL) &pSRB->Segmentx;
+ pSRB->Segmentx.address = (PUCHAR) pcmd->request_buffer;
+ pSRB->Segmentx.length = pcmd->request_bufflen;
+ }
+ else
+ pSRB->SGcount = 0;
+
+ pSRB->SGIndex = 0;
+ pSRB->AdaptStatus = 0;
+ pSRB->TargetStatus = 0;
+ pSRB->MsgCnt = 0;
+ if( pDCB->DevType != TYPE_TAPE )
+ pSRB->RetryCnt = 1;
+ else
+ pSRB->RetryCnt = 0;
+ pSRB->SRBStatus = 0;
+ pSRB->SRBFlag = 0;
+ pSRB->SRBState = 0;
+ pSRB->TotalXferredLen = 0;
+ pSRB->SGPhysAddr = 0;
+ pSRB->SGToBeXferLen = 0;
+ pSRB->ScsiPhase = 0;
+ pSRB->EndMessage = 0;
+ SendSRB( pcmd, pACB, pSRB );
+
+ restore_flags(flags);
+ return;
+}
+
+
+/***********************************************************************
+ * Function:
+ * DC390_bios_param
+ *
+ * Description:
+ * Return the disk geometry for the given SCSI device.
+ ***********************************************************************/
+#ifdef VERSION_ELF_1_2_13
+int DC390_bios_param(Disk *disk, int devno, int geom[])
+#else
+int DC390_bios_param(Disk *disk, kdev_t devno, int geom[])
+#endif
+{
+ int heads, sectors, cylinders;
+ PACB pACB;
+
+ pACB = (PACB) disk->device->host->hostdata;
+ heads = 64;
+ sectors = 32;
+ cylinders = disk->capacity / (heads * sectors);
+
+ if ( cylinders > 1024)
+ {
+ heads = 255;
+ sectors = 63;
+ cylinders = disk->capacity / (255 * 63);
+ }
+
+ geom[0] = heads;
+ geom[1] = sectors;
+ geom[2] = cylinders;
+
+ return (0);
+}
+
+
+/***********************************************************************
+ * Function : int DC390_abort (Scsi_Cmnd *cmd)
+ *
+ * Purpose : Abort an errant SCSI command
+ *
+ * Inputs : cmd - command to abort
+ *
+ * Returns : 0 on success, -1 on failure.
+ ***********************************************************************/
+
+int
+DC390_abort (Scsi_Cmnd *cmd)
+{
+ ULONG flags;
+ PACB pACB;
+ PDCB pDCB, pdcb;
+ PSRB pSRB, psrb;
+ USHORT count, i;
+ PSCSICMD pcmd, pcmd1;
+ int status;
+
+
+#ifdef DC390_DEBUG0
+ printk("DC390 : Abort Cmd.");
+#endif
+
+ save_flags(flags);
+ cli();
+
+ pACB = (PACB) cmd->host->hostdata;
+ pDCB = pACB->pLinkDCB;
+ pdcb = pDCB;
+ while( (pDCB->UnitSCSIID != cmd->target) ||
+ (pDCB->UnitSCSILUN != cmd->lun) )
+ {
+ pDCB = pDCB->pNextDCB;
+ if( pDCB == pdcb )
+ goto NOT_RUN;
+ }
+
+ if( pDCB->QIORBCnt )
+ {
+ pcmd = pDCB->pQIORBhead;
+ if( pcmd == cmd )
+ {
+ pDCB->pQIORBhead = pcmd->next;
+ pcmd->next = NULL;
+ pDCB->QIORBCnt--;
+ status = SCSI_ABORT_SUCCESS;
+ goto ABO_X;
+ }
+ for( count = pDCB->QIORBCnt, i=0; i<count-1; i++)
+ {
+ if( pcmd->next == cmd )
+ {
+ pcmd1 = pcmd->next;
+ pcmd->next = pcmd1->next;
+ pcmd1->next = NULL;
+ pDCB->QIORBCnt--;
+ status = SCSI_ABORT_SUCCESS;
+ goto ABO_X;
+ }
+ else
+ {
+ pcmd = pcmd->next;
+ }
+ }
+ }
+
+ pSRB = pDCB->pWaitingSRB;
+ if( !pSRB )
+ goto ON_GOING;
+ if( pSRB->pcmd == cmd )
+ {
+ pDCB->pWaitingSRB = pSRB->pNextSRB;
+ goto IN_WAIT;
+ }
+ else
+ {
+ psrb = pSRB;
+ if( !(psrb->pNextSRB) )
+ goto ON_GOING;
+ while( psrb->pNextSRB->pcmd != cmd )
+ {
+ psrb = psrb->pNextSRB;
+ if( !(psrb->pNextSRB) )
+ goto ON_GOING;
+ }
+ pSRB = psrb->pNextSRB;
+ psrb->pNextSRB = pSRB->pNextSRB;
+ if( pSRB == pDCB->pWaitLast )
+ pDCB->pWaitLast = psrb; /* No check for psrb == NULL ? */
+IN_WAIT:
+ pSRB->pNextSRB = pACB->pFreeSRB;
+ pACB->pFreeSRB = pSRB;
+ cmd->next = NULL;
+ status = SCSI_ABORT_SUCCESS;
+ goto ABO_X;
+ }
+
+ON_GOING:
+ pSRB = pDCB->pGoingSRB;
+ for( count = pDCB->GoingSRBCnt, i=0; i<count; i++)
+ {
+ if( pSRB->pcmd != cmd )
+ pSRB = pSRB->pNextSRB;
+ else
+ {
+ if( (pACB->pActiveDCB == pDCB) && (pDCB->pActiveSRB == pSRB) )
+ {
+ status = SCSI_ABORT_BUSY;
+ goto ABO_X;
+ }
+ else
+ {
+ status = SCSI_ABORT_SNOOZE;
+ goto ABO_X;
+ }
+ }
+ }
+
+NOT_RUN:
+ status = SCSI_ABORT_NOT_RUNNING;
+
+ABO_X:
+ cmd->result = DID_ABORT << 16;
+ cmd->scsi_done(cmd);
+ restore_flags(flags);
+ return( status );
+}
+
+
+static void
+ResetDevParam( PACB pACB )
+{
+ PDCB pDCB, pdcb;
+
+ pDCB = pACB->pLinkDCB;
+ if( pDCB == NULL )
+ return;
+ pdcb = pDCB;
+ do
+ {
+ pDCB->SyncMode &= ~SYNC_NEGO_DONE;
+ pDCB->SyncPeriod = 0;
+ pDCB->SyncOffset = 0;
+ pDCB->CtrlR3 = FAST_CLK;
+ pDCB->CtrlR4 &= NEGATE_REQACKDATA;
+ pDCB->CtrlR4 |= EATER_25NS;
+ pDCB = pDCB->pNextDCB;
+ }
+ while( pdcb != pDCB );
+}
+
+
+static void
+RecoverSRB( PACB pACB )
+{
+ PDCB pDCB, pdcb;
+ PSRB psrb, psrb2;
+ USHORT cnt, i;
+
+ pDCB = pACB->pLinkDCB;
+ if( pDCB == NULL )
+ return;
+ pdcb = pDCB;
+ do
+ {
+ cnt = pdcb->GoingSRBCnt;
+ psrb = pdcb->pGoingSRB;
+ for (i=0; i<cnt; i++)
+ {
+ psrb2 = psrb;
+ psrb = psrb->pNextSRB;
+/* RewaitSRB( pDCB, psrb ); */
+ if( pdcb->pWaitingSRB )
+ {
+ psrb2->pNextSRB = pdcb->pWaitingSRB;
+ pdcb->pWaitingSRB = psrb2;
+ }
+ else
+ {
+ pdcb->pWaitingSRB = psrb2;
+ pdcb->pWaitLast = psrb2;
+ psrb2->pNextSRB = NULL;
+ }
+ }
+ pdcb->GoingSRBCnt = 0;
+ pdcb->pGoingSRB = NULL;
+ pdcb->TagMask = 0;
+ pdcb = pdcb->pNextDCB;
+ }
+ while( pdcb != pDCB );
+}
+
+
+/***********************************************************************
+ * Function : int DC390_reset (Scsi_Cmnd *cmd, ...)
+ *
+ * Purpose : perform a hard reset on the SCSI bus
+ *
+ * Inputs : cmd - command which caused the SCSI RESET
+ *
+ * Returns : 0 on success.
+ ***********************************************************************/
+
+#ifdef VERSION_2_0_0
+int DC390_reset(Scsi_Cmnd *cmd, unsigned int resetFlags)
+#else
+int DC390_reset (Scsi_Cmnd *cmd)
+#endif
+{
+ USHORT ioport;
+ unsigned long flags;
+ PACB pACB;
+ UCHAR bval;
+ USHORT i;
+
+
+#ifdef DC390_DEBUG1
+ printk("DC390: RESET,");
+#endif
+
+ pACB = (PACB ) cmd->host->hostdata;
+ ioport = pACB->IOPortBase;
+ save_flags(flags);
+ cli();
+ bval = inb(ioport+CtrlReg1);
+ bval |= DIS_INT_ON_SCSI_RST;
+ outb(bval,ioport+CtrlReg1); /* disable interrupt */
+ DC390_ResetSCSIBus( pACB );
+ for( i=0; i<500; i++ )
+ udelay(1000);
+ bval = inb(ioport+CtrlReg1);
+ bval &= ~DIS_INT_ON_SCSI_RST;
+ outb(bval,ioport+CtrlReg1); /* re-enable interrupt */
+
+ bval = DMA_IDLE_CMD;
+ outb(bval,ioport+DMA_Cmd);
+ bval = CLEAR_FIFO_CMD;
+ outb(bval,ioport+ScsiCmd);
+
+ ResetDevParam( pACB );
+ DoingSRB_Done( pACB );
+ pACB->pActiveDCB = NULL;
+
+ pACB->ACBFlag = 0;
+ DoWaitingSRB( pACB );
+
+ restore_flags(flags);
+#ifdef DC390_DEBUG1
+ printk("DC390: RESET1,");
+#endif
+ return( SCSI_RESET_SUCCESS );
+}
+
+
+#include "scsiiom.c"
+
+
+/***********************************************************************
+ * Function : static void DC390_initDCB
+ *
+ * Purpose : initialize the internal structures for a given DCB
+ *
+ * Inputs : cmd - pointer to this scsi cmd request block structure
+ *
+ ***********************************************************************/
+void DC390_initDCB( PACB pACB, PDCB pDCB, PSCSICMD cmd )
+{
+ PEEprom prom;
+ UCHAR bval;
+ USHORT index;
+
+ if( pACB->DeviceCnt == 0 )
+ {
+ pACB->pLinkDCB = pDCB;
+ pACB->pDCBRunRobin = pDCB;
+ pDCB->pNextDCB = pDCB;
+ pPrevDCB = pDCB;
+ }
+ else
+ pPrevDCB->pNextDCB = pDCB;
+
+ pDCB->pDCBACB = pACB;
+ pDCB->QIORBCnt = 0;
+ pDCB->UnitSCSIID = cmd->target;
+ pDCB->UnitSCSILUN = cmd->lun;
+ pDCB->pWaitingSRB = NULL;
+ pDCB->pGoingSRB = NULL;
+ pDCB->GoingSRBCnt = 0;
+ pDCB->pActiveSRB = NULL;
+ pDCB->TagMask = 0;
+ pDCB->MaxCommand = 1;
+ pDCB->AdaptIndex = pACB->AdapterIndex;
+ index = pACB->AdapterIndex;
+ pDCB->DCBFlag = 0;
+
+ prom = (PEEprom) &eepromBuf[index][cmd->target << 2];
+ pDCB->DevMode = prom->EE_MODE1;
+ pDCB->AdpMode = eepromBuf[index][EE_MODE2];
+
+ if( pDCB->DevMode & EN_DISCONNECT_ )
+ bval = 0xC0;
+ else
+ bval = 0x80;
+ bval |= cmd->lun;
+ pDCB->IdentifyMsg = bval;
+
+ pDCB->SyncMode = 0;
+ if( pDCB->DevMode & SYNC_NEGO_ )
+ {
+ if( !(cmd->lun) || CurrSyncOffset )
+ pDCB->SyncMode = SYNC_ENABLE;
+ }
+
+ pDCB->SyncPeriod = 0;
+ pDCB->SyncOffset = 0;
+ pDCB->NegoPeriod = (clock_period1[prom->EE_SPEED] * 25) >> 2;
+
+ pDCB->CtrlR1 = pACB->AdaptSCSIID;
+ if( pDCB->DevMode & PARITY_CHK_ )
+ pDCB->CtrlR1 |= PARITY_ERR_REPO;
+
+ pDCB->CtrlR3 = FAST_CLK;
+
+ pDCB->CtrlR4 = EATER_25NS;
+ if( pDCB->AdpMode & ACTIVE_NEGATION)
+ pDCB->CtrlR4 |= NEGATE_REQACKDATA;
+}
+
+
+/***********************************************************************
+ * Function : static void DC390_initSRB
+ *
+ * Purpose : initialize the internal structures for a given SRB
+ *
+ * Inputs : psrb - pointer to this scsi request block structure
+ *
+ ***********************************************************************/
+void DC390_initSRB( PSRB psrb )
+{
+#ifndef VERSION_ELF_1_2_13
+#ifdef DC390_DEBUG0
+ printk("DC390 init: %08lx %08lx,",(ULONG)psrb,(ULONG)virt_to_bus(psrb));
+#endif
+ psrb->PhysSRB = virt_to_bus( psrb );
+#else
+ psrb->PhysSRB = (ULONG) psrb;
+#endif
+}
+
+
+void DC390_linkSRB( PACB pACB )
+{
+ USHORT count, i;
+ PSRB psrb;
+
+ count = pACB->SRBCount;
+
+ for( i=0; i< count; i++)
+ {
+ if( i != count - 1)
+ pACB->SRB_array[i].pNextSRB = &pACB->SRB_array[i+1];
+ else
+ pACB->SRB_array[i].pNextSRB = NULL;
+ psrb = (PSRB) &pACB->SRB_array[i];
+ DC390_initSRB( psrb );
+ }
+}
+
+
+/***********************************************************************
+ * Function : static void DC390_initACB
+ *
+ * Purpose : initialize the internal structures for a given SCSI host
+ *
+ * Inputs : psh - pointer to this host adapter's structure
+ *
+ ***********************************************************************/
+void DC390_initACB( PSH psh, ULONG io_port, UCHAR Irq, USHORT index )
+{
+ PACB pACB;
+ USHORT i;
+
+ psh->can_queue = MAX_CMD_QUEUE;
+ psh->cmd_per_lun = MAX_CMD_PER_LUN;
+ psh->this_id = (int) eepromBuf[index][EE_ADAPT_SCSI_ID];
+ psh->io_port = io_port;
+ psh->n_io_port = 0x80;
+ psh->irq = Irq;
+
+ pACB = (PACB) psh->hostdata;
+
+#ifndef VERSION_ELF_1_2_13
+ psh->max_id = 8;
+#ifdef CONFIG_SCSI_MULTI_LUN
+ if( eepromBuf[index][EE_MODE2] & LUN_CHECK )
+ psh->max_lun = 8;
+ else
+#endif
+ psh->max_lun = 1;
+#endif
+
+ pACB->max_id = 7;
+ if( pACB->max_id == eepromBuf[index][EE_ADAPT_SCSI_ID] )
+ pACB->max_id--;
+#ifdef CONFIG_SCSI_MULTI_LUN
+ if( eepromBuf[index][EE_MODE2] & LUN_CHECK )
+ pACB->max_lun = 7;
+ else
+#endif
+ pACB->max_lun = 0;
+
+ pACB->pScsiHost = psh;
+ pACB->IOPortBase = (USHORT) io_port;
+ pACB->pLinkDCB = NULL;
+ pACB->pDCBRunRobin = NULL;
+ pACB->pActiveDCB = NULL;
+ pACB->pFreeSRB = pACB->SRB_array;
+ pACB->SRBCount = MAX_SRB_CNT;
+ pACB->AdapterIndex = index;
+ pACB->status = 0;
+ pACB->AdaptSCSIID = eepromBuf[index][EE_ADAPT_SCSI_ID];
+ pACB->HostID_Bit = (1 << pACB->AdaptSCSIID);
+ pACB->AdaptSCSILUN = 0;
+ pACB->DeviceCnt = 0;
+ pACB->IRQLevel = Irq;
+ pACB->TagMaxNum = eepromBuf[index][EE_TAG_CMD_NUM] << 2;
+ pACB->ACBFlag = 0;
+ pACB->scan_devices = 1;
+ pACB->Gmode2 = eepromBuf[index][EE_MODE2];
+ if( eepromBuf[index][EE_MODE2] & LUN_CHECK )
+ pACB->LUNchk = 1;
+ pACB->pDCB_free = &pACB->DCB_array[0];
+ DC390_linkSRB( pACB );
+ pACB->pTmpSRB = &pACB->TmpSRB;
+ DC390_initSRB( pACB->pTmpSRB );
+ for(i=0; i<MAX_SCSI_ID; i++)
+ pACB->DCBmap[i] = 0;
+}
+
+
+/***********************************************************************
+ * Function : static int DC390_initAdapter
+ *
+ * Purpose : initialize the SCSI chip ctrl registers
+ *
+ * Inputs : psh - pointer to this host adapter's structure
+ *
+ ***********************************************************************/
+int DC390_initAdapter( PSH psh, ULONG io_port, UCHAR Irq, USHORT index )
+{
+ USHORT ioport;
+ UCHAR bval;
+ PACB pACB, pacb;
+ USHORT used_irq = 0;
+
+ pacb = pACB_start;
+ if( pacb != NULL )
+ {
+ for ( ; (pacb != (PACB) -1) ; )
+ {
+ if( pacb->IRQLevel == Irq )
+ {
+ used_irq = 1;
+ break;
+ }
+ else
+ pacb = pacb->pNextACB;
+ }
+ }
+
+ if( !used_irq )
+ {
+#ifdef VERSION_ELF_1_2_13
+ if( request_irq(Irq, DC390_Interrupt, SA_INTERRUPT, "tmscsim"))
+#else
+ if( request_irq(Irq, DC390_Interrupt, SA_INTERRUPT, "tmscsim", NULL))
+#endif
+ {
+ printk("DC390: register IRQ error!\n");
+ return( -1 );
+ }
+ }
+
+ request_region(io_port,psh->n_io_port,"tmscsim");
+
+ ioport = (USHORT) io_port;
+
+ pACB = (PACB) psh->hostdata;
+ bval = SEL_TIMEOUT; /* 250ms selection timeout */
+ outb(bval,ioport+Scsi_TimeOut);
+
+ bval = CLK_FREQ_40MHZ; /* Conversion factor = 0 , 40MHz clock */
+ outb(bval,ioport+Clk_Factor);
+
+ bval = NOP_CMD; /* NOP cmd - clear command register */
+ outb(bval,ioport+ScsiCmd);
+
+ bval = EN_FEATURE+EN_SCSI2_CMD; /* Enable Feature and SCSI-2 */
+ outb(bval,ioport+CtrlReg2);
+
+ bval = FAST_CLK; /* fast clock */
+ outb(bval,ioport+CtrlReg3);
+
+ bval = EATER_25NS;
+ if( eepromBuf[index][EE_MODE2] & ACTIVE_NEGATION )
+ bval |= NEGATE_REQACKDATA;
+ outb(bval,ioport+CtrlReg4);
+
+ bval = DIS_INT_ON_SCSI_RST; /* Disable SCSI bus reset interrupt */
+ outb(bval,ioport+CtrlReg1);
+
+ return(0);
+}
+
+
+void
+DC390_EnableCfg( USHORT mechnum, UCHAR regval )
+{
+ ULONG wlval;
+
+ if(mechnum == 2)
+ {
+ outb(mech2bus, PCI_CFG2_FORWARD_REG);
+ outb(mech2CfgSPenR, PCI_CFG2_ENABLE_REG);
+ }
+ else
+ {
+ regval &= 0xFC;
+ wlval = mech1addr;
+ wlval |= (((ULONG)regval) & 0xff);
+ outl(wlval, PCI_CFG1_ADDRESS_REG);
+ }
+}
+
+
+void
+DC390_DisableCfg( USHORT mechnum )
+{
+
+ if(mechnum == 2)
+ outb(0, PCI_CFG2_ENABLE_REG);
+ else
+ outl(0, PCI_CFG1_ADDRESS_REG);
+}
+
+
+UCHAR
+DC390_inByte( USHORT mechnum, UCHAR regval )
+{
+ UCHAR bval;
+ ULONG wval;
+ ULONG flags;
+
+ save_flags(flags);
+ cli();
+ DC390_EnableCfg( mechnum, regval );
+ if(mechnum == 2)
+ {
+ wval = mech2Agent;
+ wval <<= 8;
+ wval |= ((USHORT) regval) & 0xff;
+ bval = inb(wval);
+ }
+ else
+ {
+ regval &= 3;
+ bval = inb(PCI_CFG1_DATA_REG | regval);
+ }
+ DC390_DisableCfg(mechnum);
+ restore_flags(flags);
+ return(bval);
+}
+
+
+USHORT
+DC390_inWord( USHORT mechnum, UCHAR regval )
+{
+ USHORT wval;
+ ULONG flags;
+
+ save_flags(flags);
+ cli();
+ DC390_EnableCfg(mechnum,regval);
+ if(mechnum == 2)
+ {
+ wval = mech2Agent;
+ wval <<= 8;
+ wval |= regval;
+ wval = inw(wval);
+ }
+ else
+ {
+ regval &= 3;
+ wval = inw(PCI_CFG1_DATA_REG | regval);
+ }
+ DC390_DisableCfg(mechnum);
+ restore_flags(flags);
+ return(wval);
+}
+
+
+ULONG
+DC390_inDword(USHORT mechnum, UCHAR regval )
+{
+ ULONG wlval;
+ ULONG flags;
+ USHORT wval;
+
+ save_flags(flags);
+ cli();
+ DC390_EnableCfg(mechnum,regval);
+ if(mechnum == 2)
+ {
+ wval = mech2Agent;
+ wval <<= 8;
+ wval |= regval;
+ wlval = inl(wval);
+ }
+ else
+ {
+ wlval = inl(PCI_CFG1_DATA_REG);
+ }
+ DC390_DisableCfg(mechnum);
+ restore_flags(flags);
+ return(wlval);
+}
+
+
+void
+DC390_OutB(USHORT mechnum, UCHAR regval, UCHAR bval )
+{
+
+ USHORT wval;
+ ULONG flags;
+
+ save_flags(flags);
+ cli();
+ DC390_EnableCfg(mechnum,regval);
+ if(mechnum == 2)
+ {
+ wval = mech2Agent;
+ wval <<= 8;
+ wval |= regval;
+ outb(bval, wval);
+ }
+ else
+ {
+ regval &= 3;
+ outb(bval, PCI_CFG1_DATA_REG | regval);
+ }
+ DC390_DisableCfg(mechnum);
+ restore_flags(flags);
+}
+
+
+void
+DC390_EnDisableCE( UCHAR mode, USHORT mechnum, PUCHAR regval )
+{
+
+ UCHAR bval;
+
+ bval = 0;
+ if(mode == ENABLE_CE)
+ *regval = 0xc0;
+ else
+ *regval = 0x80;
+ DC390_OutB(mechnum,*regval,bval);
+ if(mode == DISABLE_CE)
+ DC390_OutB(mechnum,*regval,bval);
+ udelay(160);
+}
+
+
+void
+DC390_EEpromOutDI( USHORT mechnum, PUCHAR regval, USHORT Carry )
+{
+ UCHAR bval;
+
+ bval = 0;
+ if(Carry)
+ {
+ bval = 0x40;
+ *regval = 0x80;
+ DC390_OutB(mechnum,*regval,bval);
+ }
+ udelay(160);
+ bval |= 0x80;
+ DC390_OutB(mechnum,*regval,bval);
+ udelay(160);
+ bval = 0;
+ DC390_OutB(mechnum,*regval,bval);
+ udelay(160);
+}
+
+
+UCHAR
+DC390_EEpromInDO( USHORT mechnum )
+{
+ UCHAR bval,regval;
+
+ regval = 0x80;
+ bval = 0x80;
+ DC390_OutB(mechnum,regval,bval);
+ udelay(160);
+ bval = 0x40;
+ DC390_OutB(mechnum,regval,bval);
+ udelay(160);
+ regval = 0x0;
+ bval = DC390_inByte(mechnum,regval);
+ if(bval == 0x22)
+ return(1);
+ else
+ return(0);
+}
+
+
+USHORT
+EEpromGetData1( USHORT mechnum )
+{
+ UCHAR i;
+ UCHAR carryFlag;
+ USHORT wval;
+
+ wval = 0;
+ for(i=0; i<16; i++)
+ {
+ wval <<= 1;
+ carryFlag = DC390_EEpromInDO(mechnum);
+ wval |= carryFlag;
+ }
+ return(wval);
+}
+
+
+void
+DC390_Prepare( USHORT mechnum, PUCHAR regval, UCHAR EEpromCmd )
+{
+ UCHAR i,j;
+ USHORT carryFlag;
+
+ carryFlag = 1;
+ j = 0x80;
+ for(i=0; i<9; i++)
+ {
+ DC390_EEpromOutDI(mechnum,regval,carryFlag);
+ carryFlag = (EEpromCmd & j) ? 1 : 0;
+ j >>= 1;
+ }
+}
+
+
+void
+DC390_ReadEEprom( USHORT mechnum, USHORT index )
+{
+ UCHAR regval,cmd;
+ PUSHORT ptr;
+ USHORT i;
+
+ ptr = (PUSHORT) &eepromBuf[index][0];
+ cmd = EEPROM_READ;
+ for(i=0; i<0x40; i++)
+ {
+ DC390_EnDisableCE(ENABLE_CE, mechnum, ®val);
+ DC390_Prepare(mechnum, ®val, cmd);
+ *ptr = EEpromGetData1(mechnum);
+ ptr++;
+ cmd++;
+ DC390_EnDisableCE(DISABLE_CE,mechnum,®val);
+ }
+}
+
+
+USHORT
+DC390_CheckEEpromCheckSum( USHORT MechNum, USHORT index )
+{
+ USHORT wval, rc, *ptr;
+ UCHAR i;
+
+ DC390_ReadEEprom( MechNum, index );
+ wval = 0;
+ ptr = (PUSHORT) &eepromBuf[index][0];
+ for(i=0; i<128 ;i+=2, ptr++)
+ wval += *ptr;
+ if( wval == 0x1234 )
+ rc = 0;
+ else
+ rc = -1;
+ return( rc );
+}
+
+
+USHORT
+DC390_ToMech( USHORT Mechnum, USHORT BusDevFunNum )
+{
+ USHORT devnum;
+
+ devnum = BusDevFunNum;
+
+ if(Mechnum == 2)
+ {
+ if(devnum & 0x80)
+ return(-1);
+ mech2bus = (UCHAR)((devnum & 0xff00) >> 8); /* Bus num */
+ mech2Agent = ((UCHAR)(devnum & 0xff)) >> 3; /* Dev num */
+ mech2Agent |= 0xc0;
+ mech2CfgSPenR = ((UCHAR)(devnum & 0xff)) & 0x07; /* Fun num */
+ mech2CfgSPenR = (mech2CfgSPenR << 1) | 0x20;
+ }
+ else /* use mech #1 method */
+ {
+ mech1addr = 0x80000000 | ((ULONG)devnum << 8);
+ }
+ return(0);
+}
+
+/***********************************************************************
+ * Function : static int DC390_init (struct Scsi_Host *host)
+ *
+ * Purpose : initialize the internal structures for a given SCSI host
+ *
+ * Inputs : host - pointer to this host adapter's structure/
+ *
+ * Preconditions : when this function is called, the chip_type
+ * field of the pACB structure MUST have been set.
+ ***********************************************************************/
+
+static int
+DC390_init (PSHT psht, ULONG io_port, UCHAR Irq, USHORT index, USHORT MechNum)
+{
+ PSH psh;
+ PACB pACB;
+
+ if( !DC390_CheckEEpromCheckSum( MechNum, index) )
+ {
+ psh = scsi_register( psht, sizeof(DC390_ACB) );
+ if( !psh )
+ return( -1 );
+ if( !pSH_start )
+ {
+ pSH_start = psh;
+ pSH_current = psh;
+ }
+ else
+ {
+ pSH_current->next = psh;
+ pSH_current = psh;
+ }
+
+#ifdef DC390_DEBUG0
+ printk("DC390: pSH = %8x,", (UINT) psh);
+ printk("DC390: Index %02i,", index);
+#endif
+
+ DC390_initACB( psh, io_port, Irq, index );
+ if( !DC390_initAdapter( psh, io_port, Irq, index ) )
+ {
+ pACB = (PACB) psh->hostdata;
+ if( !pACB_start )
+ {
+ pACB_start = pACB;
+ pACB_current = pACB;
+ pACB->pNextACB = (PACB) -1;
+ }
+ else
+ {
+ pACB_current->pNextACB = pACB;
+ pACB_current = pACB;
+ pACB->pNextACB = (PACB) -1;
+ }
+
+#ifdef DC390_DEBUG0
+ printk("DC390: pACB = %8x, pDCB_array = %8x, pSRB_array = %8x\n",
+ (UINT) pACB, (UINT) pACB->DCB_array, (UINT) pACB->SRB_array);
+ printk("DC390: ACB size= %4x, DCB size= %4x, SRB size= %4x\n",
+ sizeof(DC390_ACB), sizeof(DC390_DCB), sizeof(DC390_SRB) );
+#endif
+
+ }
+ else
+ {
+ pSH_start = NULL;
+ scsi_unregister( psh );
+ return( -1 );
+ }
+ return( 0 );
+ }
+ else
+ {
+ printk("DC390_init: EEPROM reading error!\n");
+ return( -1 );
+ }
+}
+
+
+/***********************************************************************
+ * Function : int DC390_detect(Scsi_Host_Template *psht)
+ *
+ * Purpose : detects and initializes AMD53C974 SCSI chips
+ * that were autoprobed, overridden on the LILO command line,
+ * or specified at compile time.
+ *
+ * Inputs : psht - template for this SCSI adapter
+ *
+ * Returns : number of host adapters detected
+ *
+ ***********************************************************************/
+
+int
+DC390_detect(Scsi_Host_Template *psht)
+{
+#ifdef FOR_PCI_OK
+ UCHAR pci_bus, pci_device_fn;
+ int error = 0;
+ USHORT chipType = 0;
+ USHORT i;
+#endif
+
+ UCHAR irq;
+ UCHAR istatus;
+#ifndef VERSION_ELF_1_2_13
+ UINT io_port;
+#else
+ ULONG io_port;
+#endif
+ USHORT adaptCnt = 0; /* Number of boards detected */
+ USHORT pci_index = 0; /* Device index to PCI BIOS calls */
+ USHORT MechNum, BusDevFunNum;
+ ULONG wlval;
+
+#ifndef VERSION_ELF_1_2_13
+ psht->proc_dir = &proc_scsi_tmscsim;
+#endif
+
+ InitialTime = 1;
+ pSHT_start = psht;
+ pACB_start = NULL;
+
+ MechNum = 1;
+ for( ; (MechNum < 3) && (!adaptCnt); MechNum++)
+ {
+ BusDevFunNum = 0;
+ for (; adaptCnt < MAX_ADAPTER_NUM ;)
+ {
+ if( !DC390_ToMech( MechNum, BusDevFunNum) )
+ {
+ wlval = DC390_inDword( MechNum, PCI_VENDOR_ID);
+ if(wlval == ( (PCI_DEVICE_ID_AMD53C974 << 16)+
+ PCI_VENDOR_ID_AMD) )
+ {
+ io_port =DC390_inDword(MechNum,PCI_BASE_ADDRESS_0) & 0xFFFE;
+ irq = DC390_inByte( MechNum, PCI_INTERRUPT_LINE);
+#ifdef DC390_DEBUG0
+ printk("DC390: IO_PORT=%4x,IRQ=%x,\n",(UINT) io_port, irq);
+#endif
+ if( !DC390_init(psht, io_port, irq, pci_index, MechNum) )
+ {
+ adaptCnt++;
+ pci_index++;
+ istatus = inb( (USHORT)io_port+INT_Status ); /* Reset Pending INT */
+#ifdef DC390_DEBUG0
+ printk("DC390: Mech=%2x,\n",(UCHAR) MechNum);
+#endif
+ }
+ }
+ }
+ if( BusDevFunNum != 0xfff8 )
+ BusDevFunNum += 8; /* next device # */
+ else
+ break;
+ }
+ }
+
+#ifdef FOR_PCI_OK
+ if ( pcibios_present() )
+ {
+ for (i = 0; i < MAX_ADAPTER_NUM; ++i)
+ {
+ if( !pcibios_find_device( PCI_VENDOR_ID_AMD,
+ PCI_DEVICE_ID_AMD53C974,
+ pci_index, &pci_bus, &pci_device_fn) )
+ {
+ chipType = PCI_DEVICE_ID_AMD53C974;
+ pci_index++;
+ }
+
+ if( chipType )
+ {
+
+ error = pcibios_read_config_dword(pci_bus, pci_device_fn,
+ PCI_BASE_ADDRESS_0, &io_port);
+ error |= pcibios_read_config_byte(pci_bus, pci_device_fn,
+ PCI_INTERRUPT_LINE, &irq);
+ if( error )
+ {
+ printk("DC390_detect: reading configuration registers error!\n");
+ InitialTime = 0;
+ return( 0 );
+ }
+
+ (USHORT) io_port = (USHORT) io_port & 0xFFFE;
+#ifdef DC390_DEBUG0
+ printk("DC390: IO_PORT=%4x,IRQ=%x,\n",(UINT) io_port, irq);
+#endif
+ if( !DC390_init(psht, io_port, irq, i) )
+ adaptCnt++;
+ chipType = 0;
+ }
+ else
+ break;
+ }
+ }
+#endif
+
+ InitialTime = 0;
+ adapterCnt = adaptCnt;
+ return( adaptCnt );
+}
+
+
+#ifndef VERSION_ELF_1_2_13
+
+/********************************************************************
+ * Function: tmscsim_set_info()
+ *
+ * Purpose: Set adapter info (!)
+ *
+ * Not yet implemented
+ *
+ *******************************************************************/
+
+int tmscsim_set_info(char *buffer, int length, struct Scsi_Host *shpnt)
+{
+ return(-ENOSYS); /* Currently this is a no-op */
+}
+
+/********************************************************************
+ * Function: tmscsim_proc_info(char* buffer, char **start,
+ * off_t offset, int length, int hostno, int inout)
+ *
+ * Purpose: return SCSI Adapter/Device Info
+ *
+ * Input: buffer: Pointer to a buffer where to write info
+ * start :
+ * offset:
+ * hostno: Host adapter index
+ * inout : Read (=0) or set(!=0) info
+ *
+ * Output: buffer: contains info
+ * length; length of info in buffer
+ *
+ * return value: length
+ *
+ ********************************************************************/
+
+/* KG: proc_info taken from driver aha152x.c */
+
+#undef SPRINTF
+#define SPRINTF(args...) pos += sprintf(pos, ## args)
+
+#define YESNO(YN)\
+if (YN) SPRINTF(" Yes ");\
+else SPRINTF(" No ")
+
+int tmscsim_proc_info(char *buffer, char **start,
+ off_t offset, int length, int hostno, int inout)
+{
+ int dev, spd, spd1;
+ char *pos = buffer;
+ PSH shpnt;
+ PACB acbpnt;
+ PDCB dcbpnt;
+ unsigned long flags;
+/* Scsi_Cmnd *ptr; */
+
+ acbpnt = pACB_start;
+
+ while(acbpnt != (PACB)-1)
+ {
+ shpnt = acbpnt->pScsiHost;
+ if (shpnt->host_no == hostno) break;
+ acbpnt = acbpnt->pNextACB;
+ }
+
+ if (acbpnt == (PACB)-1) return(-ESRCH);
+ if(!shpnt) return(-ESRCH);
+
+ if(inout) // Has data been written to the file ?
+ return(tmscsim_set_info(buffer, length, shpnt));
+
+ SPRINTF("Tekram DC390(T) PCI SCSI Host Adadpter, ");
+ SPRINTF("Driver Version 1.10, 1996/12/05\n");
+
+ save_flags(flags);
+ cli();
+
+ SPRINTF("SCSI Host Nr %i, ", shpnt->host_no);
+ SPRINTF("DC390 Adapter Nr %i\n", acbpnt->AdapterIndex);
+ SPRINTF("IOPortBase 0x%04x, ", acbpnt->IOPortBase);
+ SPRINTF("IRQLevel 0x%02x\n", acbpnt->IRQLevel);
+
+ SPRINTF("MaxID %i, MaxLUN %i, ",acbpnt->max_id, acbpnt->max_lun);
+ SPRINTF("AdapterID %i, AdapterLUN %i\n", acbpnt->AdaptSCSIID, acbpnt->AdaptSCSILUN);
+
+ SPRINTF("TagMaxNum %i, Status %i\n", acbpnt->TagMaxNum, acbpnt->status);
+
+ SPRINTF("Nr of attached devices: %i\n", acbpnt->DeviceCnt);
+
+ SPRINTF("Un ID LUN Prty Sync DsCn SndS TagQ NegoPeriod SyncSpeed SyncOffs\n");
+
+ dcbpnt = acbpnt->pLinkDCB;
+ for (dev = 0; dev < acbpnt->DeviceCnt; dev++)
+ {
+ SPRINTF("%02i %02i %02i ", dev, dcbpnt->UnitSCSIID, dcbpnt->UnitSCSILUN);
+ YESNO(dcbpnt->DevMode & PARITY_CHK_);
+ YESNO(dcbpnt->SyncMode & SYNC_NEGO_DONE);
+ YESNO(dcbpnt->DevMode & EN_DISCONNECT_);
+ YESNO(dcbpnt->DevMode & SEND_START_);
+ YESNO(dcbpnt->SyncMode & EN_TAG_QUEUING);
+ SPRINTF(" %03i ns ", (dcbpnt->NegoPeriod) << 2);
+ if (dcbpnt->SyncOffset & 0x0f)
+ {
+ spd = 1000/(dcbpnt->NegoPeriod <<2);
+ spd1 = 1000%(dcbpnt->NegoPeriod <<2);
+ spd1 = (spd1 * 10)/(dcbpnt->NegoPeriod <<2);
+ SPRINTF(" %2i.%1i M %02i\n", spd, spd1, (dcbpnt->SyncOffset & 0x0f));
+ }
+ else SPRINTF("\n");
+ /* Add more info ...*/
+ dcbpnt = dcbpnt->pNextDCB;
+ }
+
+ restore_flags(flags);
+ *start = buffer + offset;
+
+ if (pos - buffer < offset)
+ return 0;
+ else if (pos - buffer - offset < length)
+ return pos - buffer - offset;
+ else
+ return length;
+}
+#endif /* VERSION_ELF_1_2_13 */
+
+
+#ifdef MODULE
+
+/***********************************************************************
+ * Function : static int DC390_shutdown (struct Scsi_Host *host)
+ *
+ * Purpose : does a clean (we hope) shutdown of the SCSI chip.
+ * Use prior to dumping core, unloading the driver, etc.
+ *
+ * Returns : 0 on success
+ ***********************************************************************/
+static int
+DC390_shutdown (struct Scsi_Host *host)
+{
+ UCHAR bval;
+ USHORT ioport;
+ unsigned long flags;
+ PACB pACB = (PACB)(host->hostdata);
+
+ ioport = (unsigned int) pACB->IOPortBase;
+
+ save_flags (flags);
+ cli();
+
+/* pACB->soft_reset(host); */
+
+#ifdef DC390_DEBUG0
+ printk("DC390: shutdown,");
+#endif
+
+ bval = inb(ioport+CtrlReg1);
+ bval |= DIS_INT_ON_SCSI_RST;
+ outb(bval,ioport+CtrlReg1); /* disable interrupt */
+ DC390_ResetSCSIBus( pACB );
+
+ restore_flags (flags);
+ return( 0 );
+}
+
+
+int DC390_release(struct Scsi_Host *host)
+{
+ int irq_count;
+ struct Scsi_Host *tmp;
+
+ DC390_shutdown (host);
+
+ if (host->irq != IRQ_NONE)
+ {
+ for (irq_count = 0, tmp = pSH_start; tmp; tmp = tmp->next)
+ {
+ if ( tmp->irq == host->irq )
+ ++irq_count;
+ }
+ if (irq_count == 1)
+ {
+#ifdef DC390_DEBUG0
+ printk("DC390: Free IRQ %i.",host->irq);
+#endif
+#ifndef VERSION_ELF_1_2_13
+ free_irq(host->irq,NULL);
+#else
+ free_irq(host->irq);
+#endif
+ }
+ }
+
+ release_region(host->io_port,host->n_io_port);
+
+ return( 1 );
+}
+
+Scsi_Host_Template driver_template = DC390_T;
+#include "scsi_module.c"
+#endif /* def MODULE */
+
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