/**************************************************************************
 * Initio 9100 device driver for Linux.
 *
 * Copyright (c) 1994-1998 Initio Corporation
 * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl>
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * --------------------------------------------------------------------------
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification, immediately at the beginning of the file.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Where this Software is combined with software released under the terms of 
 * the GNU General Public License ("GPL") and the terms of the GPL would require the 
 * combined work to also be released under the terms of the GPL, the terms
 * and conditions of this License will apply in addition to those of the
 * GPL with the exception of any terms or conditions of this License that
 * conflict with, or are expressly prohibited by, the GPL.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 ************************************************************************
    Module: i91uscsi.c
    Description: PCI I/F for INI-910 SCSI Bus Master Controller
    Revision History:
        11/09/94 Tim Chen, Initiali Version 0.90A
        01/17/95 TC, release ver 1.01
        02/09/95 TC  modify ReadPCIConfig, try both mechanisms;
        02/15/95 TC  add support for INI-9100W
        06/04/96 HC, Change to fit LINUX from jaspci.c
        11/18/96 HC, Port for tulip
        07/08/98 hc, Support 0002134A
        07/23/98 wh, Change the abort_srb routine.
        09/16/98 hl, Support ALPHA, Rewrite the returnNumberAdapters    <01>
        12/09/98 bv, Removed unused code, changed tul_se2_wait to
                     use udelay(30) and tul_do_pause to enable 
                     interrupts for >= 2.1.95
        12/13/98 bv, Use spinlocks instead of cli() for serialized
                     access to HCS_Semaph, HCS_FirstAvail and HCS_LastAvail
                     members of the HCS structure.
        01/09/98 bv, Fix a deadlock on SMP system.
**********************************************************************/

#define DEBUG_INTERRUPT 0
#define DEBUG_QUEUE     0
#define DEBUG_STATE     0
#define INT_DISC        0


#ifndef CVT_LINUX_VERSION
#define CVT_LINUX_VERSION(V,P,S)        (V * 65536 + P * 256 + S)
#endif

#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif

#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/blk.h>
#include <asm/io.h>

#include "i91uscsi.h"

/*--- external functions --*/
static void tul_se2_wait(void);

/*--- forward refrence ---*/
static SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun);
static SCB *tul_find_done_scb(HCS * pCurHcb);

static int tulip_main(HCS * pCurHcb);

static int tul_next_state(HCS * pCurHcb);
static int tul_state_1(HCS * pCurHcb);
static int tul_state_2(HCS * pCurHcb);
static int tul_state_3(HCS * pCurHcb);
static int tul_state_4(HCS * pCurHcb);
static int tul_state_5(HCS * pCurHcb);
static int tul_state_6(HCS * pCurHcb);
static int tul_state_7(HCS * pCurHcb);
static int tul_xfer_data_in(HCS * pCurHcb);
static int tul_xfer_data_out(HCS * pCurHcb);
static int tul_xpad_in(HCS * pCurHcb);
static int tul_xpad_out(HCS * pCurHcb);
static int tul_status_msg(HCS * pCurHcb);

static int tul_msgin(HCS * pCurHcb);
static int tul_msgin_sync(HCS * pCurHcb);
static int tul_msgin_accept(HCS * pCurHcb);
static int tul_msgout_reject(HCS * pCurHcb);
static int tul_msgin_extend(HCS * pCurHcb);

static int tul_msgout_ide(HCS * pCurHcb);
static int tul_msgout_abort_targ(HCS * pCurHcb);
static int tul_msgout_abort_tag(HCS * pCurHcb);

static int tul_bus_device_reset(HCS * pCurHcb);
static void tul_select_atn(HCS * pCurHcb, SCB * pCurScb);
static void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb);
static void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb);
static int int_tul_busfree(HCS * pCurHcb);
int int_tul_scsi_rst(HCS * pCurHcb);
static int int_tul_bad_seq(HCS * pCurHcb);
static int int_tul_resel(HCS * pCurHcb);
static int tul_sync_done(HCS * pCurHcb);
static int wdtr_done(HCS * pCurHcb);
static int wait_tulip(HCS * pCurHcb);
static int tul_wait_done_disc(HCS * pCurHcb);
static int tul_wait_disc(HCS * pCurHcb);
static void tulip_scsi(HCS * pCurHcb);
static int tul_post_scsi_rst(HCS * pCurHcb);

static void tul_se2_ew_en(WORD CurBase);
static void tul_se2_ew_ds(WORD CurBase);
static int tul_se2_rd_all(WORD CurBase);
static void tul_se2_update_all(WORD CurBase);   /* setup default pattern */
static void tul_read_eeprom(WORD CurBase);

                                /* ---- EXTERNAL VARIABLES ---- */
HCS tul_hcs[MAX_SUPPORTED_ADAPTERS];
                                /* ---- INTERNAL VARIABLES ---- */
static INI_ADPT_STRUCT i91u_adpt[MAX_SUPPORTED_ADAPTERS];

/*NVRAM nvram, *nvramp = &nvram; */
static NVRAM i91unvram;
static NVRAM *i91unvramp;



static UCHAR i91udftNvRam[64] =
{
/*----------- header -----------*/
        0x25, 0xc9,             /* Signature    */
        0x40,                   /* Size         */
        0x01,                   /* Revision     */
        /* -- Host Adapter Structure -- */
        0x95,                   /* ModelByte0   */
        0x00,                   /* ModelByte1   */
        0x00,                   /* ModelInfo    */
        0x01,                   /* NumOfCh      */
        NBC1_DEFAULT,           /* BIOSConfig1  */
        0,                      /* BIOSConfig2  */
        0,                      /* HAConfig1    */
        0,                      /* HAConfig2    */
        /* SCSI channel 0 and target Structure  */
        7,                      /* SCSIid       */
        NCC1_DEFAULT,           /* SCSIconfig1  */
        0,                      /* SCSIconfig2  */
        0x10,                   /* NumSCSItarget */

        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,

        /* SCSI channel 1 and target Structure  */
        7,                      /* SCSIid       */
        NCC1_DEFAULT,           /* SCSIconfig1  */
        0,                      /* SCSIconfig2  */
        0x10,                   /* NumSCSItarget */

        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0};                  /*      - CheckSum -            */


static UCHAR tul_rate_tbl[8] =  /* fast 20      */
{
                                /* nanosecond devide by 4 */
        12,                     /* 50ns,  20M   */
        18,                     /* 75ns,  13.3M */
        25,                     /* 100ns, 10M   */
        31,                     /* 125ns, 8M    */
        37,                     /* 150ns, 6.6M  */
        43,                     /* 175ns, 5.7M  */
        50,                     /* 200ns, 5M    */
        62                      /* 250ns, 4M    */
};

extern int tul_num_ch;


static void tul_do_pause(unsigned amount)
{                               /* Pause for amount jiffies */
        unsigned long the_time = jiffies + amount;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        while (time_before_eq(jiffies, the_time));
#else
        while (jiffies < the_time);
#endif
}

/*-- forward reference --*/

/*******************************************************************
        Use memeory refresh time        ~ 15us * 2
********************************************************************/
void tul_se2_wait()
{
#if 1
        udelay(30);
#else
        UCHAR readByte;

        readByte = TUL_RD(0, 0x61);
        if ((readByte & 0x10) == 0x10) {
                for (;;) {
                        readByte = TUL_RD(0, 0x61);
                        if ((readByte & 0x10) == 0x10)
                                break;
                }
                for (;;) {
                        readByte = TUL_RD(0, 0x61);
                        if ((readByte & 0x10) != 0x10)
                                break;
                }
        } else {
                for (;;) {
                        readByte = TUL_RD(0, 0x61);
                        if ((readByte & 0x10) == 0x10)
                                break;
                }
                for (;;) {
                        readByte = TUL_RD(0, 0x61);
                        if ((readByte & 0x10) != 0x10)
                                break;
                }
        }
#endif
}


/******************************************************************
 Input: instruction for  Serial E2PROM

 EX: se2_rd(0 call se2_instr() to send address and read command

         StartBit  OP_Code   Address                Data
         --------- --------  ------------------     -------
         1         1 , 0     A5,A4,A3,A2,A1,A0      D15-D0

                 +-----------------------------------------------------
                 |
 CS -----+
                        +--+  +--+  +--+  +--+  +--+
                        ^  |  ^  |  ^  |  ^  |  ^  |
                        |  |  |  |  |  |  |  |  |  |
 CLK -------+  +--+  +--+  +--+  +--+  +--
 (leading edge trigger)

                 +--1-----1--+
                 | SB    OP  |  OP    A5    A4
 DI  ----+           +--0------------------
 (address and cmd sent to nvram)

         -------------------------------------------+
                                                                                                |
 DO                                             +---
 (data sent from nvram)


******************************************************************/
void tul_se2_instr(WORD CurBase, UCHAR instr)
{
        int i;
        UCHAR b;

        TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO);     /* cs+start bit */
        tul_se2_wait();
        TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK | SE2DO);    /* +CLK */
        tul_se2_wait();

        for (i = 0; i < 8; i++) {
                if (instr & 0x80)
                        b = SE2CS | SE2DO;      /* -CLK+dataBit */
                else
                        b = SE2CS;      /* -CLK */
                TUL_WR(CurBase + TUL_NVRAM, b);
                tul_se2_wait();
                TUL_WR(CurBase + TUL_NVRAM, b | SE2CLK);        /* +CLK */
                tul_se2_wait();
                instr <<= 1;
        }
        TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
        tul_se2_wait();
        return;
}


/******************************************************************
 Function name  : tul_se2_ew_en
 Description    : Enable erase/write state of serial EEPROM
******************************************************************/
void tul_se2_ew_en(WORD CurBase)
{
        tul_se2_instr(CurBase, 0x30);   /* EWEN */
        TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
        tul_se2_wait();
        return;
}


/************************************************************************
 Disable erase/write state of serial EEPROM
*************************************************************************/
void tul_se2_ew_ds(WORD CurBase)
{
        tul_se2_instr(CurBase, 0);      /* EWDS */
        TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
        tul_se2_wait();
        return;
}


/******************************************************************
        Input  :address of Serial E2PROM
        Output :value stored in  Serial E2PROM
*******************************************************************/
USHORT tul_se2_rd(WORD CurBase, ULONG adr)
{
        UCHAR instr, readByte;
        USHORT readWord;
        int i;

        instr = (UCHAR) (adr | 0x80);
        tul_se2_instr(CurBase, instr);  /* READ INSTR */
        readWord = 0;

        for (i = 15; i >= 0; i--) {
                TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK);    /* +CLK */
                tul_se2_wait();
                TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */

                /* sample data after the following edge of clock  */
                readByte = TUL_RD(CurBase, TUL_NVRAM);
                readByte &= SE2DI;
                readWord += (readByte << i);
                tul_se2_wait(); /* 6/20/95 */
        }

        TUL_WR(CurBase + TUL_NVRAM, 0);         /* no chip select */
        tul_se2_wait();
        return readWord;
}


/******************************************************************
 Input: new value in  Serial E2PROM, address of Serial E2PROM
*******************************************************************/
void tul_se2_wr(WORD CurBase, UCHAR adr, USHORT writeWord)
{
        UCHAR readByte;
        UCHAR instr;
        int i;

        instr = (UCHAR) (adr | 0x40);
        tul_se2_instr(CurBase, instr);  /* WRITE INSTR */
        for (i = 15; i >= 0; i--) {
                if (writeWord & 0x8000)
                        TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO);     /* -CLK+dataBit 1 */
                else
                        TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK+dataBit 0 */
                tul_se2_wait();
                TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK);    /* +CLK */
                tul_se2_wait();
                writeWord <<= 1;
        }
        TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
        tul_se2_wait();
        TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
        tul_se2_wait();

        TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* +CS  */
        tul_se2_wait();

        for (;;) {
                TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK);    /* +CLK */
                tul_se2_wait();
                TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
                tul_se2_wait();
                if ((readByte = TUL_RD(CurBase, TUL_NVRAM)) & SE2DI)
                        break;  /* write complete */
        }
        TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS */
        return;
}


/***********************************************************************
 Read SCSI H/A configuration parameters from serial EEPROM
************************************************************************/
int tul_se2_rd_all(WORD CurBase)
{
        int i;
        ULONG chksum = 0;
        USHORT *np;

        i91unvramp = &i91unvram;
        np = (USHORT *) i91unvramp;
        for (i = 0; i < 32; i++) {
                *np++ = tul_se2_rd(CurBase, i);
        }

/*--------------------Is signature "ini" ok ? ----------------*/
        if (i91unvramp->NVM_Signature != INI_SIGNATURE)
                return -1;
/*---------------------- Is ckecksum ok ? ----------------------*/
        np = (USHORT *) i91unvramp;
        for (i = 0; i < 31; i++)
                chksum += *np++;
        if (i91unvramp->NVM_CheckSum != (USHORT) chksum)
                return -1;
        return 1;
}


/***********************************************************************
 Update SCSI H/A configuration parameters from serial EEPROM
************************************************************************/
void tul_se2_update_all(WORD CurBase)
{                               /* setup default pattern */
        int i;
        ULONG chksum = 0;
        USHORT *np, *np1;

        i91unvramp = &i91unvram;
        /* Calculate checksum first */
        np = (USHORT *) i91udftNvRam;
        for (i = 0; i < 31; i++)
                chksum += *np++;
        *np = (USHORT) chksum;
        tul_se2_ew_en(CurBase); /* Enable write  */

        np = (USHORT *) i91udftNvRam;
        np1 = (USHORT *) i91unvramp;
        for (i = 0; i < 32; i++, np++, np1++) {
                if (*np != *np1) {
                        tul_se2_wr(CurBase, i, *np);
                }
        }

        tul_se2_ew_ds(CurBase); /* Disable write   */
        return;
}

/*************************************************************************
 Function name  : read_eeprom
**************************************************************************/
void tul_read_eeprom(WORD CurBase)
{
        UCHAR gctrl;

        i91unvramp = &i91unvram;
/*------Enable EEProm programming ---*/
        gctrl = TUL_RD(CurBase, TUL_GCTRL);
        TUL_WR(CurBase + TUL_GCTRL, gctrl | TUL_GCTRL_EEPROM_BIT);
        if (tul_se2_rd_all(CurBase) != 1) {
                tul_se2_update_all(CurBase);    /* setup default pattern */
                tul_se2_rd_all(CurBase);        /* load again  */
        }
/*------ Disable EEProm programming ---*/
        gctrl = TUL_RD(CurBase, TUL_GCTRL);
        TUL_WR(CurBase + TUL_GCTRL, gctrl & ~TUL_GCTRL_EEPROM_BIT);
}                               /* read_eeprom */

int Addi91u_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt,
                               BYTE bBus, BYTE bDevice)
{
        int i, j;

        for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) {
                if (i91u_adpt[i].ADPT_BIOS < wBIOS)
                        continue;
                if (i91u_adpt[i].ADPT_BIOS == wBIOS) {
                        if (i91u_adpt[i].ADPT_BASE == wBASE) {
                                if (i91u_adpt[i].ADPT_Bus != 0xFF)
                                        return (FAILURE);
                        } else if (i91u_adpt[i].ADPT_BASE < wBASE)
                                        continue;
                }
                for (j = MAX_SUPPORTED_ADAPTERS - 1; j > i; j--) {
                        i91u_adpt[j].ADPT_BASE = i91u_adpt[j - 1].ADPT_BASE;
                        i91u_adpt[j].ADPT_INTR = i91u_adpt[j - 1].ADPT_INTR;
                        i91u_adpt[j].ADPT_BIOS = i91u_adpt[j - 1].ADPT_BIOS;
                        i91u_adpt[j].ADPT_Bus = i91u_adpt[j - 1].ADPT_Bus;
                        i91u_adpt[j].ADPT_Device = i91u_adpt[j - 1].ADPT_Device;
                }
                i91u_adpt[i].ADPT_BASE = wBASE;
                i91u_adpt[i].ADPT_INTR = bInterrupt;
                i91u_adpt[i].ADPT_BIOS = wBIOS;
                i91u_adpt[i].ADPT_Bus = bBus;
                i91u_adpt[i].ADPT_Device = bDevice;
                return (SUCCESSFUL);
        }
        return (FAILURE);
}

void init_i91uAdapter_table(void)
{
        int i;

        for (i = 0; i < MAX_SUPPORTED_ADAPTERS; i++) {  /* Initialize adapter structure */
                i91u_adpt[i].ADPT_BIOS = 0xffff;
                i91u_adpt[i].ADPT_BASE = 0xffff;
                i91u_adpt[i].ADPT_INTR = 0xff;
                i91u_adpt[i].ADPT_Bus = 0xff;
                i91u_adpt[i].ADPT_Device = 0xff;
        }
        return;
}

void tul_stop_bm(HCS * pCurHcb)
{

        if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) {   /* if DMA xfer is pending, abort DMA xfer */
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO);
                /* wait Abort DMA xfer done */
                while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0);
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
}

/***************************************************************************/
void get_tulipPCIConfig(HCS * pCurHcb, int ch_idx)
{
        pCurHcb->HCS_Base = i91u_adpt[ch_idx].ADPT_BASE;        /* Supply base address  */
        pCurHcb->HCS_BIOS = i91u_adpt[ch_idx].ADPT_BIOS;        /* Supply BIOS address  */
        pCurHcb->HCS_Intr = i91u_adpt[ch_idx].ADPT_INTR;        /* Supply interrupt line */
        return;
}

/***************************************************************************/
int tul_reset_scsi(HCS * pCurHcb, int seconds)
{
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_BUS);

        while (!((pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt)) & TSS_SCSIRST_INT));
        /* reset tulip chip */

        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, 0);

        /* Stall for a while, wait for target's firmware ready,make it 2 sec ! */
        /* SONY 5200 tape drive won't work if only stall for 1 sec */
        tul_do_pause(seconds * HZ);

        TUL_RD(pCurHcb->HCS_Base, TUL_SInt);

        return (SCSI_RESET_SUCCESS);
}

/***************************************************************************/
int init_tulip(HCS * pCurHcb, SCB * scbp, int tul_num_scb, BYTE * pbBiosAdr, int seconds)
{
        int i;
        BYTE *pwFlags;
        BYTE *pbHeads;
        SCB *pTmpScb, *pPrevScb = NULL;

        pCurHcb->HCS_NumScbs = tul_num_scb;
        pCurHcb->HCS_Semaph = 1;
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        pCurHcb->HCS_SemaphLock = SPIN_LOCK_UNLOCKED;
#endif
        pCurHcb->HCS_JSStatus0 = 0;
        pCurHcb->HCS_Scb = scbp;
        pCurHcb->HCS_NxtPend = scbp;
        pCurHcb->HCS_NxtAvail = scbp;
        for (i = 0, pTmpScb = scbp; i < tul_num_scb; i++, pTmpScb++) {
                pTmpScb->SCB_TagId = i;
                if (i != 0)
                        pPrevScb->SCB_NxtScb = pTmpScb;
                pPrevScb = pTmpScb;
        }
        pPrevScb->SCB_NxtScb = NULL;
        pCurHcb->HCS_ScbEnd = pTmpScb;
        pCurHcb->HCS_FirstAvail = scbp;
        pCurHcb->HCS_LastAvail = pPrevScb;
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        pCurHcb->HCS_AvailLock = SPIN_LOCK_UNLOCKED;
#endif
        pCurHcb->HCS_FirstPend = NULL;
        pCurHcb->HCS_LastPend = NULL;
        pCurHcb->HCS_FirstBusy = NULL;
        pCurHcb->HCS_LastBusy = NULL;
        pCurHcb->HCS_FirstDone = NULL;
        pCurHcb->HCS_LastDone = NULL;
        pCurHcb->HCS_ActScb = NULL;
        pCurHcb->HCS_ActTcs = NULL;

        tul_read_eeprom(pCurHcb->HCS_Base);
/*---------- get H/A configuration -------------*/
        if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8)
                pCurHcb->HCS_MaxTar = 8;
        else
                pCurHcb->HCS_MaxTar = 16;

        pCurHcb->HCS_Config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1;

        pCurHcb->HCS_SCSI_ID = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID;
        pCurHcb->HCS_IdMask = ~(1 << pCurHcb->HCS_SCSI_ID);

#if CHK_PARITY
        /* Enable parity error response */
        TUL_WR(pCurHcb->HCS_Base + TUL_PCMD, TUL_RD(pCurHcb->HCS_Base, TUL_PCMD) | 0x40);
#endif

        /* Mask all the interrupt       */
        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);

        tul_stop_bm(pCurHcb);
        /* --- Initialize the tulip --- */
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_CHIP);

        /* program HBA's SCSI ID        */
        TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, pCurHcb->HCS_SCSI_ID << 4);

        /* Enable Initiator Mode ,phase latch,alternate sync period mode,
           disable SCSI reset */
        if (pCurHcb->HCS_Config & HCC_EN_PAR)
                pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR);
        else
                pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT);
        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_SConf1);

        /* Enable HW reselect           */
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);

        TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, 0);

        /* selection time out = 250 ms */
        TUL_WR(pCurHcb->HCS_Base + TUL_STimeOut, 153);

/*--------- Enable SCSI terminator -----*/
        TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, (pCurHcb->HCS_Config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)));
        TUL_WR(pCurHcb->HCS_Base + TUL_GCTRL1,
               ((pCurHcb->HCS_Config & HCC_AUTO_TERM) >> 4) | (TUL_RD(pCurHcb->HCS_Base, TUL_GCTRL1) & 0xFE));

        for (i = 0,
             pwFlags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config),
             pbHeads = pbBiosAdr + 0x180;
             i < pCurHcb->HCS_MaxTar;
             i++, pwFlags++) {
                pCurHcb->HCS_Tcs[i].TCS_Flags = *pwFlags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
                if (pCurHcb->HCS_Tcs[i].TCS_Flags & TCF_EN_255)
                        pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63;
                else
                        pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0;
                pCurHcb->HCS_Tcs[i].TCS_JS_Period = 0;
                pCurHcb->HCS_Tcs[i].TCS_SConfig0 = pCurHcb->HCS_SConf1;
                pCurHcb->HCS_Tcs[i].TCS_DrvHead = *pbHeads++;
                if (pCurHcb->HCS_Tcs[i].TCS_DrvHead == 255)
                        pCurHcb->HCS_Tcs[i].TCS_DrvFlags = TCF_DRV_255_63;
                else
                        pCurHcb->HCS_Tcs[i].TCS_DrvFlags = 0;
                pCurHcb->HCS_Tcs[i].TCS_DrvSector = *pbHeads++;
                pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY;
                pCurHcb->HCS_ActTags[i] = 0;
                pCurHcb->HCS_MaxTags[i] = 0xFF;
        }                       /* for                          */
        printk("i91u: PCI Base=0x%04X, IRQ=%d, BIOS=0x%04X0, SCSI ID=%d\n",
               pCurHcb->HCS_Base, pCurHcb->HCS_Intr,
               pCurHcb->HCS_BIOS, pCurHcb->HCS_SCSI_ID);
/*------------------- reset SCSI Bus ---------------------------*/
        if (pCurHcb->HCS_Config & HCC_SCSI_RESET) {
                printk("i91u: Reset SCSI Bus ... \n");
                tul_reset_scsi(pCurHcb, seconds);
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SCFG1, 0x17);
        TUL_WR(pCurHcb->HCS_Base + TUL_SIntEnable, 0xE9);
        return (0);
}

/***************************************************************************/
SCB *tul_alloc_scb(HCS * hcsp)
{
        SCB *pTmpScb;
        ULONG flags;
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags);
#else
        save_flags(flags);
        cli();
#endif
        if ((pTmpScb = hcsp->HCS_FirstAvail) != NULL) {
#if DEBUG_QUEUE
                printk("find scb at %08lx\n", (ULONG) pTmpScb);
#endif
                if ((hcsp->HCS_FirstAvail = pTmpScb->SCB_NxtScb) == NULL)
                        hcsp->HCS_LastAvail = NULL;
                pTmpScb->SCB_NxtScb = NULL;
                pTmpScb->SCB_Status = SCB_RENT;
        }
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags);
#else
        restore_flags(flags);
#endif
        return (pTmpScb);
}

/***************************************************************************/
void tul_release_scb(HCS * hcsp, SCB * scbp)
{
        ULONG flags;

#if DEBUG_QUEUE
        printk("Release SCB %lx; ", (ULONG) scbp);
#endif
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags);
#else
        save_flags(flags);
        cli();
#endif
        scbp->SCB_Srb = 0;
        scbp->SCB_Status = 0;
        scbp->SCB_NxtScb = NULL;
        if (hcsp->HCS_LastAvail != NULL) {
                hcsp->HCS_LastAvail->SCB_NxtScb = scbp;
                hcsp->HCS_LastAvail = scbp;
        } else {
                hcsp->HCS_FirstAvail = scbp;
                hcsp->HCS_LastAvail = scbp;
        }
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags);
#else
        restore_flags(flags);
#endif
}

/***************************************************************************/
void tul_append_pend_scb(HCS * pCurHcb, SCB * scbp)
{

#if DEBUG_QUEUE
        printk("Append pend SCB %lx; ", (ULONG) scbp);
#endif
        scbp->SCB_Status = SCB_PEND;
        scbp->SCB_NxtScb = NULL;
        if (pCurHcb->HCS_LastPend != NULL) {
                pCurHcb->HCS_LastPend->SCB_NxtScb = scbp;
                pCurHcb->HCS_LastPend = scbp;
        } else {
                pCurHcb->HCS_FirstPend = scbp;
                pCurHcb->HCS_LastPend = scbp;
        }
}

/***************************************************************************/
void tul_push_pend_scb(HCS * pCurHcb, SCB * scbp)
{

#if DEBUG_QUEUE
        printk("Push pend SCB %lx; ", (ULONG) scbp);
#endif
        scbp->SCB_Status = SCB_PEND;
        if ((scbp->SCB_NxtScb = pCurHcb->HCS_FirstPend) != NULL) {
                pCurHcb->HCS_FirstPend = scbp;
        } else {
                pCurHcb->HCS_FirstPend = scbp;
                pCurHcb->HCS_LastPend = scbp;
        }
}

/***************************************************************************/
SCB *tul_find_first_pend_scb(HCS * pCurHcb)
{
        SCB *pFirstPend;


        pFirstPend = pCurHcb->HCS_FirstPend;
        while (pFirstPend != NULL) {
                if (pFirstPend->SCB_Opcode != ExecSCSI) {
                        return (pFirstPend);
                }
                if (pFirstPend->SCB_TagMsg == 0) {
                        if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] == 0) &&
                            !(pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) {
                                return (pFirstPend);
                        }
                } else {
                        if ((pCurHcb->HCS_ActTags[pFirstPend->SCB_Target] >=
                          pCurHcb->HCS_MaxTags[pFirstPend->SCB_Target]) |
                            (pCurHcb->HCS_Tcs[pFirstPend->SCB_Target].TCS_Flags & TCF_BUSY)) {
                                pFirstPend = pFirstPend->SCB_NxtScb;
                                continue;
                        }
                        return (pFirstPend);
                }
                pFirstPend = pFirstPend->SCB_NxtScb;
        }


        return (pFirstPend);
}
/***************************************************************************/
SCB *tul_pop_pend_scb(HCS * pCurHcb)
{
        SCB *pTmpScb;

        if ((pTmpScb = pCurHcb->HCS_FirstPend) != NULL) {
                if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL)
                        pCurHcb->HCS_LastPend = NULL;
                pTmpScb->SCB_NxtScb = NULL;
        }
#if DEBUG_QUEUE
        printk("Pop pend SCB %lx; ", (ULONG) pTmpScb);
#endif
        return (pTmpScb);
}


/***************************************************************************/
void tul_unlink_pend_scb(HCS * pCurHcb, SCB * pCurScb)
{
        SCB *pTmpScb, *pPrevScb;

#if DEBUG_QUEUE
        printk("unlink pend SCB %lx; ", (ULONG) pCurScb);
#endif

        pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend;
        while (pTmpScb != NULL) {
                if (pCurScb == pTmpScb) {       /* Unlink this SCB              */
                        if (pTmpScb == pCurHcb->HCS_FirstPend) {
                                if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL)
                                        pCurHcb->HCS_LastPend = NULL;
                        } else {
                                pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
                                if (pTmpScb == pCurHcb->HCS_LastPend)
                                        pCurHcb->HCS_LastPend = pPrevScb;
                        }
                        pTmpScb->SCB_NxtScb = NULL;
                        break;
                }
                pPrevScb = pTmpScb;
                pTmpScb = pTmpScb->SCB_NxtScb;
        }
        return;
}
/***************************************************************************/
void tul_append_busy_scb(HCS * pCurHcb, SCB * scbp)
{

#if DEBUG_QUEUE
        printk("append busy SCB %lx; ", (ULONG) scbp);
#endif
        if (scbp->SCB_TagMsg)
                pCurHcb->HCS_ActTags[scbp->SCB_Target]++;
        else
                pCurHcb->HCS_Tcs[scbp->SCB_Target].TCS_Flags |= TCF_BUSY;
        scbp->SCB_Status = SCB_BUSY;
        scbp->SCB_NxtScb = NULL;
        if (pCurHcb->HCS_LastBusy != NULL) {
                pCurHcb->HCS_LastBusy->SCB_NxtScb = scbp;
                pCurHcb->HCS_LastBusy = scbp;
        } else {
                pCurHcb->HCS_FirstBusy = scbp;
                pCurHcb->HCS_LastBusy = scbp;
        }
}

/***************************************************************************/
SCB *tul_pop_busy_scb(HCS * pCurHcb)
{
        SCB *pTmpScb;


        if ((pTmpScb = pCurHcb->HCS_FirstBusy) != NULL) {
                if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL)
                        pCurHcb->HCS_LastBusy = NULL;
                pTmpScb->SCB_NxtScb = NULL;
                if (pTmpScb->SCB_TagMsg)
                        pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--;
                else
                        pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY;
        }
#if DEBUG_QUEUE
        printk("Pop busy SCB %lx; ", (ULONG) pTmpScb);
#endif
        return (pTmpScb);
}

/***************************************************************************/
void tul_unlink_busy_scb(HCS * pCurHcb, SCB * pCurScb)
{
        SCB *pTmpScb, *pPrevScb;

#if DEBUG_QUEUE
        printk("unlink busy SCB %lx; ", (ULONG) pCurScb);
#endif

        pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;
        while (pTmpScb != NULL) {
                if (pCurScb == pTmpScb) {       /* Unlink this SCB              */
                        if (pTmpScb == pCurHcb->HCS_FirstBusy) {
                                if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL)
                                        pCurHcb->HCS_LastBusy = NULL;
                        } else {
                                pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
                                if (pTmpScb == pCurHcb->HCS_LastBusy)
                                        pCurHcb->HCS_LastBusy = pPrevScb;
                        }
                        pTmpScb->SCB_NxtScb = NULL;
                        if (pTmpScb->SCB_TagMsg)
                                pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--;
                        else
                                pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY;
                        break;
                }
                pPrevScb = pTmpScb;
                pTmpScb = pTmpScb->SCB_NxtScb;
        }
        return;
}

/***************************************************************************/
SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun)
{
        SCB *pTmpScb, *pPrevScb;
        WORD scbp_tarlun;


        pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;
        while (pTmpScb != NULL) {
                scbp_tarlun = (pTmpScb->SCB_Lun << 8) | (pTmpScb->SCB_Target);
                if (scbp_tarlun == tarlun) {    /* Unlink this SCB              */
                        break;
                }
                pPrevScb = pTmpScb;
                pTmpScb = pTmpScb->SCB_NxtScb;
        }
#if DEBUG_QUEUE
        printk("find busy SCB %lx; ", (ULONG) pTmpScb);
#endif
        return (pTmpScb);
}

/***************************************************************************/
void tul_append_done_scb(HCS * pCurHcb, SCB * scbp)
{

#if DEBUG_QUEUE
        printk("append done SCB %lx; ", (ULONG) scbp);
#endif

        scbp->SCB_Status = SCB_DONE;
        scbp->SCB_NxtScb = NULL;
        if (pCurHcb->HCS_LastDone != NULL) {
                pCurHcb->HCS_LastDone->SCB_NxtScb = scbp;
                pCurHcb->HCS_LastDone = scbp;
        } else {
                pCurHcb->HCS_FirstDone = scbp;
                pCurHcb->HCS_LastDone = scbp;
        }
}

/***************************************************************************/
SCB *tul_find_done_scb(HCS * pCurHcb)
{
        SCB *pTmpScb;

        if ((pTmpScb = pCurHcb->HCS_FirstDone) != NULL) {
                if ((pCurHcb->HCS_FirstDone = pTmpScb->SCB_NxtScb) == NULL)
                        pCurHcb->HCS_LastDone = NULL;
                pTmpScb->SCB_NxtScb = NULL;
        }
#if DEBUG_QUEUE
        printk("find done SCB %lx; ", (ULONG) pTmpScb);
#endif
        return (pTmpScb);
}

/***************************************************************************/
int tul_abort_srb(HCS * pCurHcb, ULONG srbp)
{
        ULONG flags;
        SCB *pTmpScb, *pPrevScb;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#else
        save_flags(flags);
        cli();
#endif

        if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) {
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
                /* disable Jasmin SCSI Int        */

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                tulip_main(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                pCurHcb->HCS_Semaph = 1;
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                restore_flags(flags);
#endif

                return SCSI_ABORT_SNOOZE;
        }
        pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend;    /* Check Pend queue */
        while (pTmpScb != NULL) {
                /* 07/27/98 */
                if (pTmpScb->SCB_Srb == (unsigned char *) srbp) {
                        if (pTmpScb == pCurHcb->HCS_ActScb) {
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                                restore_flags(flags);
#endif
                                return SCSI_ABORT_BUSY;
                        } else if (pTmpScb == pCurHcb->HCS_FirstPend) {
                                if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL)
                                        pCurHcb->HCS_LastPend = NULL;
                        } else {
                                pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
                                if (pTmpScb == pCurHcb->HCS_LastPend)
                                        pCurHcb->HCS_LastPend = pPrevScb;
                        }
                        pTmpScb->SCB_HaStat = HOST_ABORTED;
                        pTmpScb->SCB_Flags |= SCF_DONE;
                        if (pTmpScb->SCB_Flags & SCF_POST)
                                (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb);
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                        restore_flags(flags);
#endif
                        return SCSI_ABORT_SUCCESS;
                }
                pPrevScb = pTmpScb;
                pTmpScb = pTmpScb->SCB_NxtScb;
        }

        pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;    /* Check Busy queue */
        while (pTmpScb != NULL) {

                if (pTmpScb->SCB_Srb == (unsigned char *) srbp) {

                        if (pTmpScb == pCurHcb->HCS_ActScb) {
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                                restore_flags(flags);
#endif
                                return SCSI_ABORT_BUSY;
                        } else if (pTmpScb->SCB_TagMsg == 0) {
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                                restore_flags(flags);
#endif
                                return SCSI_ABORT_BUSY;
                        } else {
                                pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--;
                                if (pTmpScb == pCurHcb->HCS_FirstBusy) {
                                        if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL)
                                                pCurHcb->HCS_LastBusy = NULL;
                                } else {
                                        pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
                                        if (pTmpScb == pCurHcb->HCS_LastBusy)
                                                pCurHcb->HCS_LastBusy = pPrevScb;
                                }
                                pTmpScb->SCB_NxtScb = NULL;


                                pTmpScb->SCB_HaStat = HOST_ABORTED;
                                pTmpScb->SCB_Flags |= SCF_DONE;
                                if (pTmpScb->SCB_Flags & SCF_POST)
                                        (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb);
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                                restore_flags(flags);
#endif
                                return SCSI_ABORT_SUCCESS;
                        }
                }
                pPrevScb = pTmpScb;
                pTmpScb = pTmpScb->SCB_NxtScb;
        }
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
        restore_flags(flags);
#endif
        return (SCSI_ABORT_NOT_RUNNING);
}

/***************************************************************************/
int tul_bad_seq(HCS * pCurHcb)
{
        SCB *pCurScb;

        printk("tul_bad_seg c=%d\n", pCurHcb->HCS_Index);

        if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) {
                tul_unlink_busy_scb(pCurHcb, pCurScb);
                pCurScb->SCB_HaStat = HOST_BAD_PHAS;
                pCurScb->SCB_TaStat = 0;
                tul_append_done_scb(pCurHcb, pCurScb);
        }
        tul_stop_bm(pCurHcb);

        tul_reset_scsi(pCurHcb, 8);     /* 7/29/98 */

        return (tul_post_scsi_rst(pCurHcb));
}

/************************************************************************/
int tul_device_reset(HCS * pCurHcb, ULONG pSrb, unsigned int target, unsigned int ResetFlags)
{
        ULONG flags;
        SCB *pScb;
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#else
        save_flags(flags);
        cli();
#endif

        if (ResetFlags & SCSI_RESET_ASYNCHRONOUS) {

                if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
                        /* disable Jasmin SCSI Int        */

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                        tulip_main(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                        pCurHcb->HCS_Semaph = 1;
                        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                        restore_flags(flags);
#endif

                        return SCSI_RESET_SNOOZE;
                }
                pScb = pCurHcb->HCS_FirstBusy;  /* Check Busy queue */
                while (pScb != NULL) {
                        if (pScb->SCB_Srb == (unsigned char *) pSrb)
                                break;
                        pScb = pScb->SCB_NxtScb;
                }
                if (pScb == NULL) {
                        printk("Unable to Reset - No SCB Found\n");

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                        restore_flags(flags);
#endif
                        return SCSI_RESET_NOT_RUNNING;
                }
        }
        if ((pScb = tul_alloc_scb(pCurHcb)) == NULL) {
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
                restore_flags(flags);
#endif
                return SCSI_RESET_NOT_RUNNING;
        }
        pScb->SCB_Opcode = BusDevRst;
        pScb->SCB_Flags = SCF_POST;
        pScb->SCB_Target = target;
        pScb->SCB_Mode = 0;

        pScb->SCB_Srb = 0;
        if (ResetFlags & SCSI_RESET_SYNCHRONOUS) {
                pScb->SCB_Srb = (unsigned char *) pSrb;
        }
        tul_push_pend_scb(pCurHcb, pScb);       /* push this SCB to Pending queue */

        if (pCurHcb->HCS_Semaph == 1) {
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
                /* disable Jasmin SCSI Int        */
                pCurHcb->HCS_Semaph = 0;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                tulip_main(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                pCurHcb->HCS_Semaph = 1;
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
        }
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
        restore_flags(flags);
#endif
        return SCSI_RESET_PENDING;
}

int tul_reset_scsi_bus(HCS * pCurHcb)
{
        ULONG flags;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#else
        save_flags(flags);
        cli();
#endif
        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
        pCurHcb->HCS_Semaph = 0;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
        restore_flags(flags);
#endif

        tul_stop_bm(pCurHcb);

        tul_reset_scsi(pCurHcb, 2);     /* 7/29/98 */

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#else
        save_flags(flags);
        cli();
#endif
        tul_post_scsi_rst(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#endif

        tulip_main(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#endif

        pCurHcb->HCS_Semaph = 1;
        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
        restore_flags(flags);
#endif
        return (SCSI_RESET_SUCCESS | SCSI_RESET_HOST_RESET);
}

/************************************************************************/
void tul_exec_scb(HCS * pCurHcb, SCB * pCurScb)
{
        ULONG flags;

        pCurScb->SCB_Mode = 0;

        pCurScb->SCB_SGIdx = 0;
        pCurScb->SCB_SGMax = pCurScb->SCB_SGLen;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#else
        save_flags(flags);
        cli();
#endif

        tul_append_pend_scb(pCurHcb, pCurScb);  /* Append this SCB to Pending queue */

/* VVVVV 07/21/98 */
        if (pCurHcb->HCS_Semaph == 1) {
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
                /* disable Jasmin SCSI Int        */
                pCurHcb->HCS_Semaph = 0;

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                tulip_main(pCurHcb);

#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
                spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
#endif

                pCurHcb->HCS_Semaph = 1;
                TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
        }
#if LINUX_VERSION_CODE >= CVT_LINUX_VERSION(2,1,95)
        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
#else
        restore_flags(flags);
#endif
        return;
}

/***************************************************************************/
int tul_isr(HCS * pCurHcb)
{
        /* Enter critical section       */

        if (TUL_RD(pCurHcb->HCS_Base, TUL_Int) & TSS_INT_PENDING) {
                if (pCurHcb->HCS_Semaph == 1) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
                        /* Disable Tulip SCSI Int */
                        pCurHcb->HCS_Semaph = 0;

                        tulip_main(pCurHcb);

                        pCurHcb->HCS_Semaph = 1;
                        TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
                        return (1);
                }
        }
        return (0);
}

/***************************************************************************/
int tulip_main(HCS * pCurHcb)
{
        SCB *pCurScb;

        for (;;) {

                tulip_scsi(pCurHcb);    /* Call tulip_scsi              */

                while ((pCurScb = tul_find_done_scb(pCurHcb)) != NULL) {        /* find done entry */
                        if (pCurScb->SCB_TaStat == QUEUE_FULL) {
                                pCurHcb->HCS_MaxTags[pCurScb->SCB_Target] =
                                    pCurHcb->HCS_ActTags[pCurScb->SCB_Target] - 1;
                                pCurScb->SCB_TaStat = 0;
                                tul_append_pend_scb(pCurHcb, pCurScb);
                                continue;
                        }
                        if (!(pCurScb->SCB_Mode & SCM_RSENS)) {         /* not in auto req. sense mode */
                                if (pCurScb->SCB_TaStat == 2) {

                                        /* clr sync. nego flag */

                                        if (pCurScb->SCB_Flags & SCF_SENSE) {
                                                BYTE len;
                                                len = pCurScb->SCB_SenseLen;
                                                if (len == 0)
                                                        len = 1;
                                                pCurScb->SCB_BufLen = pCurScb->SCB_SenseLen;
                                                pCurScb->SCB_BufPtr = pCurScb->SCB_SensePtr;
                                                pCurScb->SCB_Flags &= ~(SCF_SG | SCF_DIR);      /* for xfer_data_in */
/*                      pCurScb->SCB_Flags |= SCF_NO_DCHK;      */
                                                /* so, we won't report worng direction in xfer_data_in,
                                                   and won't report HOST_DO_DU in state_6 */
                                                pCurScb->SCB_Mode = SCM_RSENS;
                                                pCurScb->SCB_Ident &= 0xBF;     /* Disable Disconnect */
                                                pCurScb->SCB_TagMsg = 0;
                                                pCurScb->SCB_TaStat = 0;
                                                pCurScb->SCB_CDBLen = 6;
                                                pCurScb->SCB_CDB[0] = SCSICMD_RequestSense;
                                                pCurScb->SCB_CDB[1] = 0;
                                                pCurScb->SCB_CDB[2] = 0;
                                                pCurScb->SCB_CDB[3] = 0;
                                                pCurScb->SCB_CDB[4] = len;
                                                pCurScb->SCB_CDB[5] = 0;
                                                tul_push_pend_scb(pCurHcb, pCurScb);
                                                break;
                                        }
                                }
                        } else {        /* in request sense mode */

                                if (pCurScb->SCB_TaStat == 2) {         /* check contition status again after sending
                                                                           requset sense cmd 0x3 */
                                        pCurScb->SCB_HaStat = HOST_BAD_PHAS;
                                }
                                pCurScb->SCB_TaStat = 2;
                        }
                        pCurScb->SCB_Flags |= SCF_DONE;
                        if (pCurScb->SCB_Flags & SCF_POST) {
                                (*pCurScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pCurScb);
                        }
                }               /* while */

                /* find_active: */
                if (TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0) & TSS_INT_PENDING)
                        continue;

                if (pCurHcb->HCS_ActScb) {      /* return to OS and wait for xfer_done_ISR/Selected_ISR */
                        return 1;       /* return to OS, enable interrupt */
                }
                /* Check pending SCB            */
                if (tul_find_first_pend_scb(pCurHcb) == NULL) {
                        return 1;       /* return to OS, enable interrupt */
                }
        }                       /* End of for loop */
        /* statement won't reach here */
}




/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/
/***************************************************************************/

/***************************************************************************/
void tulip_scsi(HCS * pCurHcb)
{
        SCB *pCurScb;
        TCS *pCurTcb;

        /* make sure to service interrupt asap */

        if ((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0)) & TSS_INT_PENDING) {

                pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK;
                pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1);
                pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt);
                if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) {     /* SCSI bus reset detected      */
                        int_tul_scsi_rst(pCurHcb);
                        return;
                }
                if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) {       /* if selected/reselected interrupt */
                        if (int_tul_resel(pCurHcb) == 0)
                                tul_next_state(pCurHcb);
                        return;
                }
                if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) {
                        int_tul_busfree(pCurHcb);
                        return;
                }
                if (pCurHcb->HCS_JSInt & TSS_DISC_INT) {        /* BUS disconnection            */
                        int_tul_busfree(pCurHcb);       /* unexpected bus free or sel timeout */
                        return;
                }
                if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) {      /* func complete or Bus service */
                        if ((pCurScb = pCurHcb->HCS_ActScb) != NULL)
                                tul_next_state(pCurHcb);
                        return;
                }
        }
        if (pCurHcb->HCS_ActScb != NULL)
                return;

        if ((pCurScb = tul_find_first_pend_scb(pCurHcb)) == NULL)
                return;

        /* program HBA's SCSI ID & target SCSI ID */
        TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId,
             (pCurHcb->HCS_SCSI_ID << 4) | (pCurScb->SCB_Target & 0x0F));
        if (pCurScb->SCB_Opcode == ExecSCSI) {
                pCurTcb = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target];

                if (pCurScb->SCB_TagMsg)
                        pCurTcb->TCS_DrvFlags |= TCF_DRV_EN_TAG;
                else
                        pCurTcb->TCS_DrvFlags &= ~TCF_DRV_EN_TAG;

                TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period);
                if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) {        /* do wdtr negotiation          */
                        tul_select_atn_stop(pCurHcb, pCurScb);
                } else {
                        if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {   /* do sync negotiation          */
                                tul_select_atn_stop(pCurHcb, pCurScb);
                        } else {
                                if (pCurScb->SCB_TagMsg)
                                        tul_select_atn3(pCurHcb, pCurScb);
                                else
                                        tul_select_atn(pCurHcb, pCurScb);
                        }
                }
                if (pCurScb->SCB_Flags & SCF_POLL) {
                        while (wait_tulip(pCurHcb) != -1) {
                                if (tul_next_state(pCurHcb) == -1)
                                        break;
                        }
                }
        } else if (pCurScb->SCB_Opcode == BusDevRst) {
                tul_select_atn_stop(pCurHcb, pCurScb);
                pCurScb->SCB_NxtStat = 8;
                if (pCurScb->SCB_Flags & SCF_POLL) {
                        while (wait_tulip(pCurHcb) != -1) {
                                if (tul_next_state(pCurHcb) == -1)
                                        break;
                        }
                }
        } else if (pCurScb->SCB_Opcode == AbortCmd) {
                ULONG srbp;

                srbp = (ULONG) pCurScb->SCB_Srb;
/* 08/03/98 */
                if (tul_abort_srb(pCurHcb, srbp) != 0) {


                        tul_unlink_pend_scb(pCurHcb, pCurScb);

                        tul_release_scb(pCurHcb, pCurScb);
                } else {
                        pCurScb->SCB_Opcode = BusDevRst;
                        tul_select_atn_stop(pCurHcb, pCurScb);
                        pCurScb->SCB_NxtStat = 8;
                }

/* 08/03/98 */
        } else {
                tul_unlink_pend_scb(pCurHcb, pCurScb);
                pCurScb->SCB_HaStat = 0x16;     /* bad command */
                tul_append_done_scb(pCurHcb, pCurScb);
        }
        return;
}


/***************************************************************************/
int tul_next_state(HCS * pCurHcb)
{
        int next;

        next = pCurHcb->HCS_ActScb->SCB_NxtStat;
        for (;;) {
                switch (next) {
                case 1:
                        next = tul_state_1(pCurHcb);
                        break;
                case 2:
                        next = tul_state_2(pCurHcb);
                        break;
                case 3:
                        next = tul_state_3(pCurHcb);
                        break;
                case 4:
                        next = tul_state_4(pCurHcb);
                        break;
                case 5:
                        next = tul_state_5(pCurHcb);
                        break;
                case 6:
                        next = tul_state_6(pCurHcb);
                        break;
                case 7:
                        next = tul_state_7(pCurHcb);
                        break;
                case 8:
                        return (tul_bus_device_reset(pCurHcb));
                default:
                        return (tul_bad_seq(pCurHcb));
                }
                if (next <= 0)
                        return next;
        }
}


/***************************************************************************/
/* sTate after selection with attention & stop */
int tul_state_1(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;
#if DEBUG_STATE
        printk("-s1-");
#endif

        tul_unlink_pend_scb(pCurHcb, pCurScb);
        tul_append_busy_scb(pCurHcb, pCurScb);

        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0);
        /* ATN on */
        if (pCurHcb->HCS_Phase == MSG_OUT) {

                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, (TSC_EN_BUS_IN | TSC_HW_RESELECT));

                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident);

                if (pCurScb->SCB_TagMsg) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId);
                }
                if ((pCurTcb->TCS_Flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) {

                        pCurTcb->TCS_Flags |= TCF_WDTR_DONE;

                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2);       /* Extended msg length */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3);       /* Sync request */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1);       /* Start from 16 bits */
                } else if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {

                        pCurTcb->TCS_Flags |= TCF_SYNC_DONE;

                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3);       /* extended msg length */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1);       /* sync request */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET);      /* REQ/ACK offset */
                }
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                if (wait_tulip(pCurHcb) == -1)
                        return (-1);
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)));
        return (3);
}


/***************************************************************************/
/* state after selection with attention */
/* state after selection with attention3 */
int tul_state_2(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;
#if DEBUG_STATE
        printk("-s2-");
#endif

        tul_unlink_pend_scb(pCurHcb, pCurScb);
        tul_append_busy_scb(pCurHcb, pCurScb);

        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0);

        if (pCurHcb->HCS_JSStatus1 & TSS_CMD_PH_CMP) {
                return (4);
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)));
        return (3);
}

/***************************************************************************/
/* state before CDB xfer is done */
int tul_state_3(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;
        int i;

#if DEBUG_STATE
        printk("-s3-");
#endif
        for (;;) {
                switch (pCurHcb->HCS_Phase) {
                case CMD_OUT:   /* Command out phase            */
                        for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++)
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                        if (wait_tulip(pCurHcb) == -1)
                                return (-1);
                        if (pCurHcb->HCS_Phase == CMD_OUT) {
                                return (tul_bad_seq(pCurHcb));
                        }
                        return (4);

                case MSG_IN:    /* Message in phase             */
                        pCurScb->SCB_NxtStat = 3;
                        if (tul_msgin(pCurHcb) == -1)
                                return (-1);
                        break;

                case STATUS_IN: /* Status phase                 */
                        if (tul_status_msg(pCurHcb) == -1)
                                return (-1);
                        break;

                case MSG_OUT:   /* Message out phase            */
                        if (pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) {

                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP);         /* msg nop */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                                if (wait_tulip(pCurHcb) == -1)
                                        return (-1);

                        } else {
                                pCurTcb->TCS_Flags |= TCF_SYNC_DONE;

                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND);
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3);       /* ext. msg len */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1);       /* sync request */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, tul_rate_tbl[pCurTcb->TCS_Flags & TCF_SCSI_RATE]);
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MAX_OFFSET);      /* REQ/ACK offset */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                                if (wait_tulip(pCurHcb) == -1)
                                        return (-1);
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                                TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7));

                        }
                        break;

                default:
                        return (tul_bad_seq(pCurHcb));
                }
        }
}


/***************************************************************************/
int tul_state_4(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;

#if DEBUG_STATE
        printk("-s4-");
#endif
        if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_NO_XF) {
                return (6);     /* Go to state 6                */
        }
        for (;;) {
                if (pCurScb->SCB_BufLen == 0)
                        return (6);     /* Go to state 6                */

                switch (pCurHcb->HCS_Phase) {

                case STATUS_IN: /* Status phase                 */
                        if ((pCurScb->SCB_Flags & SCF_DIR) != 0) {      /* if direction bit set then report data underrun */
                                pCurScb->SCB_HaStat = HOST_DO_DU;
                        }
                        if ((tul_status_msg(pCurHcb)) == -1)
                                return (-1);
                        break;

                case MSG_IN:    /* Message in phase             */
                        pCurScb->SCB_NxtStat = 0x4;
                        if (tul_msgin(pCurHcb) == -1)
                                return (-1);
                        break;

                case MSG_OUT:   /* Message out phase            */
                        if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) {
                                pCurScb->SCB_BufLen = 0;
                                pCurScb->SCB_HaStat = HOST_DO_DU;
                                if (tul_msgout_ide(pCurHcb) == -1)
                                        return (-1);
                                return (6);     /* Go to state 6                */
                        } else {
                                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP);         /* msg nop */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                                if (wait_tulip(pCurHcb) == -1)
                                        return (-1);
                        }
                        break;

                case DATA_IN:   /* Data in phase                */
                        return (tul_xfer_data_in(pCurHcb));

                case DATA_OUT:  /* Data out phase               */
                        return (tul_xfer_data_out(pCurHcb));

                default:
                        return (tul_bad_seq(pCurHcb));
                }
        }
}


/***************************************************************************/
/* state after dma xfer done or phase change before xfer done */
int tul_state_5(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        long cnt, xcnt;         /* cannot use unsigned !! code: if (xcnt < 0) */

#if DEBUG_STATE
        printk("-s5-");
#endif
/*------ get remaining count -------*/

        cnt = TUL_RDLONG(pCurHcb->HCS_Base, TUL_SCnt0) & 0x0FFFFFF;

        if (TUL_RD(pCurHcb->HCS_Base, TUL_XCmd) & 0x20) {
                /* ----------------------- DATA_IN ----------------------------- */
                /* check scsi parity error */
                if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) {
                        pCurScb->SCB_HaStat = HOST_DO_DU;
                }
                if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) {   /* DMA xfer pending, Send STOP  */
                        /* tell Hardware  scsi xfer has been terminated */
                        TUL_WR(pCurHcb->HCS_Base + TUL_XCtrl, TUL_RD(pCurHcb->HCS_Base, TUL_XCtrl) | 0x80);
                        /* wait until DMA xfer not pending */
                        while (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND);
                }
        } else {
/*-------- DATA OUT -----------*/
                if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0) {
                        if (pCurHcb->HCS_ActTcs->TCS_JS_Period & TSC_WIDE_SCSI)
                                cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F) << 1;
                        else
                                cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F);
                }
                if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND) {   /* if DMA xfer is pending, abort DMA xfer */
                        TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT);
                        /* wait Abort DMA xfer done */
                        while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0);
                }
                if ((cnt == 1) && (pCurHcb->HCS_Phase == DATA_OUT)) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                        if (wait_tulip(pCurHcb) == -1) {
                                return (-1);
                        }
                        cnt = 0;
                } else {
                        if ((TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1) & TSS_XFER_CMP) == 0)
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                }
        }

        if (cnt == 0) {
                pCurScb->SCB_BufLen = 0;
                return (6);     /* Go to state 6                */
        }
        /* Update active data pointer */
        xcnt = (long) pCurScb->SCB_BufLen - cnt;        /* xcnt== bytes already xferred */
        pCurScb->SCB_BufLen = (U32) cnt;        /* cnt == bytes left to be xferred */
        if (pCurScb->SCB_Flags & SCF_SG) {
                register SG *sgp;
                ULONG i;

                sgp = &pCurScb->SCB_SGList[pCurScb->SCB_SGIdx];
                for (i = pCurScb->SCB_SGIdx; i < pCurScb->SCB_SGMax; sgp++, i++) {
                        xcnt -= (long) sgp->SG_Len;
                        if (xcnt < 0) {         /* this sgp xfer half done */
                                xcnt += (long) sgp->SG_Len;     /* xcnt == bytes xferred in this sgp */
                                sgp->SG_Ptr += (U32) xcnt;      /* new ptr to be xfer */
                                sgp->SG_Len -= (U32) xcnt;      /* new len to be xfer */
                                pCurScb->SCB_BufPtr += ((U32) (i - pCurScb->SCB_SGIdx) << 3);
                                /* new SG table ptr */
                                pCurScb->SCB_SGLen = (BYTE) (pCurScb->SCB_SGMax - i);
                                /* new SG table len */
                                pCurScb->SCB_SGIdx = (WORD) i;
                                /* for next disc and come in this loop */
                                return (4);     /* Go to state 4                */
                        }
                        /* else (xcnt >= 0 , i.e. this sgp already xferred */
                }               /* for */
                return (6);     /* Go to state 6                */
        } else {
                pCurScb->SCB_BufPtr += (U32) xcnt;
        }
        return (4);             /* Go to state 4                */
}

/***************************************************************************/
/* state after Data phase */
int tul_state_6(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;

#if DEBUG_STATE
        printk("-s6-");
#endif
        for (;;) {
                switch (pCurHcb->HCS_Phase) {
                case STATUS_IN: /* Status phase                 */
                        if ((tul_status_msg(pCurHcb)) == -1)
                                return (-1);
                        break;

                case MSG_IN:    /* Message in phase             */
                        pCurScb->SCB_NxtStat = 6;
                        if ((tul_msgin(pCurHcb)) == -1)
                                return (-1);
                        break;

                case MSG_OUT:   /* Message out phase            */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP);         /* msg nop */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                        if (wait_tulip(pCurHcb) == -1)
                                return (-1);
                        break;

                case DATA_IN:   /* Data in phase                */
                        return (tul_xpad_in(pCurHcb));

                case DATA_OUT:  /* Data out phase               */
                        return (tul_xpad_out(pCurHcb));

                default:
                        return (tul_bad_seq(pCurHcb));
                }
        }
}

/***************************************************************************/
int tul_state_7(HCS * pCurHcb)
{
        int cnt, i;

#if DEBUG_STATE
        printk("-s7-");
#endif
        /* flush SCSI FIFO */
        cnt = TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F;
        if (cnt) {
                for (i = 0; i < cnt; i++)
                        TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
        }
        switch (pCurHcb->HCS_Phase) {
        case DATA_IN:           /* Data in phase                */
        case DATA_OUT:          /* Data out phase               */
                return (tul_bad_seq(pCurHcb));
        default:
                return (6);     /* Go to state 6                */
        }
}

/***************************************************************************/
int tul_xfer_data_in(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;

        if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DOUT) {
                return (6);     /* wrong direction */
        }
        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen);

        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_IN);    /* 7/25/95 */

        if (pCurScb->SCB_Flags & SCF_SG) {      /* S/G xfer */
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3);
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr);
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_IN);
        } else {
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen);
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr);
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_IN);
        }
        pCurScb->SCB_NxtStat = 0x5;
        return (0);             /* return to OS, wait xfer done , let jas_isr come in */
}


/***************************************************************************/
int tul_xfer_data_out(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;

        if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DIN) {
                return (6);     /* wrong direction */
        }

        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_OUT);

        if (pCurScb->SCB_Flags & SCF_SG) {      /* S/G xfer */
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, ((ULONG) pCurScb->SCB_SGLen) << 3);
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr);
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_SG_OUT);
        } else {
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XCntH, pCurScb->SCB_BufLen);
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_XAddH, pCurScb->SCB_BufPtr);
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_OUT);
        }

        pCurScb->SCB_NxtStat = 0x5;
        return (0);             /* return to OS, wait xfer done , let jas_isr come in */
}


/***************************************************************************/
int tul_xpad_in(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;

        if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) {
                pCurScb->SCB_HaStat = HOST_DO_DU;       /* over run             */
        }
        for (;;) {
                if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI)
                        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2);
                else
                        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);

                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                if ((wait_tulip(pCurHcb)) == -1) {
                        return (-1);
                }
                if (pCurHcb->HCS_Phase != DATA_IN) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                        return (6);
                }
                TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
        }
}

int tul_xpad_out(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;

        if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) {
                pCurScb->SCB_HaStat = HOST_DO_DU;       /* over run             */
        }
        for (;;) {
                if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI)
                        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2);
                else
                        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);

                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                if ((wait_tulip(pCurHcb)) == -1) {
                        return (-1);
                }
                if (pCurHcb->HCS_Phase != DATA_OUT) {   /* Disable wide CPU to allow read 16 bits */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                        return (6);
                }
        }
}


/***************************************************************************/
int tul_status_msg(HCS * pCurHcb)
{                               /* status & MSG_IN */
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        BYTE msg;

        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_CMD_COMP);
        if ((wait_tulip(pCurHcb)) == -1) {
                return (-1);
        }
        /* get status */
        pCurScb->SCB_TaStat = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);

        if (pCurHcb->HCS_Phase == MSG_OUT) {
                if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY);
                } else {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_NOP);
                }
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                return (wait_tulip(pCurHcb));
        }
        if (pCurHcb->HCS_Phase == MSG_IN) {
                msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
                if (pCurHcb->HCS_JSStatus0 & TSS_PAR_ERROR) {   /* Parity error                 */
                        if ((tul_msgin_accept(pCurHcb)) == -1)
                                return (-1);
                        if (pCurHcb->HCS_Phase != MSG_OUT)
                                return (tul_bad_seq(pCurHcb));
                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_PARITY);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                        return (wait_tulip(pCurHcb));
                }
                if (msg == 0) { /* Command complete             */

                        if ((pCurScb->SCB_TaStat & 0x18) == 0x10) {     /* No link support              */
                                return (tul_bad_seq(pCurHcb));
                        }
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);
                        return tul_wait_done_disc(pCurHcb);

                }
                if ((msg == MSG_LINK_COMP) || (msg == MSG_LINK_FLAG)) {
                        if ((pCurScb->SCB_TaStat & 0x18) == 0x10)
                                return (tul_msgin_accept(pCurHcb));
                }
        }
        return (tul_bad_seq(pCurHcb));
}


/***************************************************************************/
/* scsi bus free */
int int_tul_busfree(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;

        if (pCurScb != NULL) {
                if (pCurScb->SCB_Status & SCB_SELECT) {         /* selection timeout */
                        tul_unlink_pend_scb(pCurHcb, pCurScb);
                        pCurScb->SCB_HaStat = HOST_SEL_TOUT;
                        tul_append_done_scb(pCurHcb, pCurScb);
                } else {        /* Unexpected bus free          */
                        tul_unlink_busy_scb(pCurHcb, pCurScb);
                        pCurScb->SCB_HaStat = HOST_BUS_FREE;
                        tul_append_done_scb(pCurHcb, pCurScb);
                }
                pCurHcb->HCS_ActScb = NULL;
                pCurHcb->HCS_ActTcs = NULL;
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);         /* Flush SCSI FIFO  */
        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);        /* Enable HW reselect       */
        return (-1);
}


/***************************************************************************/
/* scsi bus reset */
int int_tul_scsi_rst(HCS * pCurHcb)
{
        SCB *pCurScb;
        int i;

        /* if DMA xfer is pending, abort DMA xfer */
        if (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & 0x01) {
                TUL_WR(pCurHcb->HCS_Base + TUL_XCmd, TAX_X_ABT | TAX_X_CLR_FIFO);
                /* wait Abort DMA xfer done */
                while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & 0x04) == 0);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
        }
        /* Abort all active & disconnected scb */
        while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) {
                pCurScb->SCB_HaStat = HOST_BAD_PHAS;
                tul_append_done_scb(pCurHcb, pCurScb);
        }
        pCurHcb->HCS_ActScb = NULL;
        pCurHcb->HCS_ActTcs = NULL;

        /* clr sync nego. done flag */
        for (i = 0; i < pCurHcb->HCS_MaxTar; i++) {
                pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
        }
        return (-1);
}


/***************************************************************************/
/* scsi reselection */
int int_tul_resel(HCS * pCurHcb)
{
        SCB *pCurScb;
        TCS *pCurTcb;
        BYTE tag, msg = 0;
        BYTE tar, lun;

        if ((pCurScb = pCurHcb->HCS_ActScb) != NULL) {
                if (pCurScb->SCB_Status & SCB_SELECT) {         /* if waiting for selection complete */
                        pCurScb->SCB_Status &= ~SCB_SELECT;
                }
                pCurHcb->HCS_ActScb = NULL;
        }
        /* --------- get target id---------------------- */
        tar = TUL_RD(pCurHcb->HCS_Base, TUL_SBusId);
        /* ------ get LUN from Identify message----------- */
        lun = TUL_RD(pCurHcb->HCS_Base, TUL_SIdent) & 0x0F;
        /* 07/22/98 from 0x1F -> 0x0F */
        pCurTcb = &pCurHcb->HCS_Tcs[tar];
        pCurHcb->HCS_ActTcs = pCurTcb;
        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0);
        TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurTcb->TCS_JS_Period);


        /* ------------- tag queueing ? ------------------- */
        if (pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG) {
                if ((tul_msgin_accept(pCurHcb)) == -1)
                        return (-1);
                if (pCurHcb->HCS_Phase != MSG_IN)
                        goto no_tag;
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                if ((wait_tulip(pCurHcb)) == -1)
                        return (-1);
                msg = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);     /* Read Tag Message    */

                if ((msg < MSG_STAG) || (msg > MSG_OTAG))       /* Is simple Tag      */
                        goto no_tag;

                if ((tul_msgin_accept(pCurHcb)) == -1)
                        return (-1);

                if (pCurHcb->HCS_Phase != MSG_IN)
                        goto no_tag;

                TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                if ((wait_tulip(pCurHcb)) == -1)
                        return (-1);
                tag = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);     /* Read Tag ID       */
                pCurScb = pCurHcb->HCS_Scb + tag;
                if ((pCurScb->SCB_Target != tar) || (pCurScb->SCB_Lun != lun)) {
                        return tul_msgout_abort_tag(pCurHcb);
                }
                if (pCurScb->SCB_Status != SCB_BUSY) {  /* 03/24/95             */
                        return tul_msgout_abort_tag(pCurHcb);
                }
                pCurHcb->HCS_ActScb = pCurScb;
                if ((tul_msgin_accept(pCurHcb)) == -1)
                        return (-1);
        } else {                /* No tag               */
              no_tag:
                if ((pCurScb = tul_find_busy_scb(pCurHcb, tar | (lun << 8))) == NULL) {
                        return tul_msgout_abort_targ(pCurHcb);
                }
                pCurHcb->HCS_ActScb = pCurScb;
                if (!(pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG)) {
                        if ((tul_msgin_accept(pCurHcb)) == -1)
                                return (-1);
                }
        }
        return 0;
}


/***************************************************************************/
int int_tul_bad_seq(HCS * pCurHcb)
{                               /* target wrong phase           */
        SCB *pCurScb;
        int i;

        tul_reset_scsi(pCurHcb, 10);

        while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) {
                pCurScb->SCB_HaStat = HOST_BAD_PHAS;
                tul_append_done_scb(pCurHcb, pCurScb);
        }
        for (i = 0; i < pCurHcb->HCS_MaxTar; i++) {
                pCurHcb->HCS_Tcs[i].TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);;
        }
        return (-1);
}


/***************************************************************************/
int tul_msgout_abort_targ(HCS * pCurHcb)
{

        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
        if (tul_msgin_accept(pCurHcb) == -1)
                return (-1);
        if (pCurHcb->HCS_Phase != MSG_OUT)
                return (tul_bad_seq(pCurHcb));

        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);

        return tul_wait_disc(pCurHcb);
}

/***************************************************************************/
int tul_msgout_abort_tag(HCS * pCurHcb)
{

        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
        if (tul_msgin_accept(pCurHcb) == -1)
                return (-1);
        if (pCurHcb->HCS_Phase != MSG_OUT)
                return (tul_bad_seq(pCurHcb));

        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT_TAG);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);

        return tul_wait_disc(pCurHcb);

}

/***************************************************************************/
int tul_msgin(HCS * pCurHcb)
{
        TCS *pCurTcb;

        for (;;) {

                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);

                TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                if ((wait_tulip(pCurHcb)) == -1)
                        return (-1);

                switch (TUL_RD(pCurHcb->HCS_Base, TUL_SFifo)) {
                case MSG_DISC:  /* Disconnect msg */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);

                        return tul_wait_disc(pCurHcb);

                case MSG_SDP:
                case MSG_RESTORE:
                case MSG_NOP:
                        tul_msgin_accept(pCurHcb);
                        break;

                case MSG_REJ:   /* Clear ATN first              */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal,
                               (TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)));
                        pCurTcb = pCurHcb->HCS_ActTcs;
                        if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {   /* do sync nego */
                                TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
                        }
                        tul_msgin_accept(pCurHcb);
                        break;

                case MSG_EXTEND:        /* extended msg */
                        tul_msgin_extend(pCurHcb);
                        break;

                case MSG_IGNOREWIDE:
                        tul_msgin_accept(pCurHcb);
                        break;

                        /* get */
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                        if (wait_tulip(pCurHcb) == -1)
                                return -1;

                        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 0);       /* put pad  */
                        TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);   /* get IGNORE field */
                        TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);   /* get pad */

                        tul_msgin_accept(pCurHcb);
                        break;

                case MSG_COMP:
                        {
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
                                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);
                                return tul_wait_done_disc(pCurHcb);
                        }
                default:
                        tul_msgout_reject(pCurHcb);
                        break;
                }
                if (pCurHcb->HCS_Phase != MSG_IN)
                        return (pCurHcb->HCS_Phase);
        }
        /* statement won't reach here */
}




/***************************************************************************/
int tul_msgout_reject(HCS * pCurHcb)
{

        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));

        if ((tul_msgin_accept(pCurHcb)) == -1)
                return (-1);

        if (pCurHcb->HCS_Phase == MSG_OUT) {
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_REJ);         /* Msg reject           */
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                return (wait_tulip(pCurHcb));
        }
        return (pCurHcb->HCS_Phase);
}



/***************************************************************************/
int tul_msgout_ide(HCS * pCurHcb)
{
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_IDE);         /* Initiator Detected Error */
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
        return (wait_tulip(pCurHcb));
}


/***************************************************************************/
int tul_msgin_extend(HCS * pCurHcb)
{
        BYTE len, idx;

        if (tul_msgin_accept(pCurHcb) != MSG_IN)
                return (pCurHcb->HCS_Phase);

        /* Get extended msg length      */
        TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
        if (wait_tulip(pCurHcb) == -1)
                return (-1);

        len = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
        pCurHcb->HCS_Msg[0] = len;
        for (idx = 1; len != 0; len--) {

                if ((tul_msgin_accept(pCurHcb)) != MSG_IN)
                        return (pCurHcb->HCS_Phase);
                TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
                if (wait_tulip(pCurHcb) == -1)
                        return (-1);
                pCurHcb->HCS_Msg[idx++] = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
        }
        if (pCurHcb->HCS_Msg[1] == 1) {         /* if it's synchronous data transfer request */
                if (pCurHcb->HCS_Msg[0] != 3)   /* if length is not right */
                        return (tul_msgout_reject(pCurHcb));
                if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_SYNC_NEGO) {        /* Set OFFSET=0 to do async, nego back */
                        pCurHcb->HCS_Msg[3] = 0;
                } else {
                        if ((tul_msgin_sync(pCurHcb) == 0) &&
                            (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SYNC_DONE)) {
                                tul_sync_done(pCurHcb);
                                return (tul_msgin_accept(pCurHcb));
                        }
                }

                TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
                if ((tul_msgin_accept(pCurHcb)) != MSG_OUT)
                        return (pCurHcb->HCS_Phase);
                /* sync msg out */
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);

                tul_sync_done(pCurHcb);

                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND);
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3);
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 1);
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]);
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[3]);

                TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
                return (wait_tulip(pCurHcb));
        }
        if ((pCurHcb->HCS_Msg[0] != 2) || (pCurHcb->HCS_Msg[1] != 3))
                return (tul_msgout_reject(pCurHcb));
        /* if it's WIDE DATA XFER REQ   */
        if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) {
                pCurHcb->HCS_Msg[2] = 0;
        } else {
                if (pCurHcb->HCS_Msg[2] > 2)    /* > 32 bits            */
                        return (tul_msgout_reject(pCurHcb));
                if (pCurHcb->HCS_Msg[2] == 2) {         /* == 32                */
                        pCurHcb->HCS_Msg[2] = 1;
                } else {
                        if ((pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) == 0) {
                                wdtr_done(pCurHcb);
                                if ((pCurHcb->HCS_ActTcs->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0)
                                        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
                                return (tul_msgin_accept(pCurHcb));
                        }
                }
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));

        if (tul_msgin_accept(pCurHcb) != MSG_OUT)
                return (pCurHcb->HCS_Phase);
        /* WDTR msg out                 */
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_EXTEND);
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 2);
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, 3);
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurHcb->HCS_Msg[2]);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
        return (wait_tulip(pCurHcb));
}

/***************************************************************************/
int tul_msgin_sync(HCS * pCurHcb)
{
        char default_period;

        default_period = tul_rate_tbl[pCurHcb->HCS_ActTcs->TCS_Flags & TCF_SCSI_RATE];
        if (pCurHcb->HCS_Msg[3] > MAX_OFFSET) {
                pCurHcb->HCS_Msg[3] = MAX_OFFSET;
                if (pCurHcb->HCS_Msg[2] < default_period) {
                        pCurHcb->HCS_Msg[2] = default_period;
                        return 1;
                }
                if (pCurHcb->HCS_Msg[2] >= 59) {        /* Change to async              */
                        pCurHcb->HCS_Msg[3] = 0;
                }
                return 1;
        }
        /* offset requests asynchronous transfers ? */
        if (pCurHcb->HCS_Msg[3] == 0) {
                return 0;
        }
        if (pCurHcb->HCS_Msg[2] < default_period) {
                pCurHcb->HCS_Msg[2] = default_period;
                return 1;
        }
        if (pCurHcb->HCS_Msg[2] >= 59) {
                pCurHcb->HCS_Msg[3] = 0;
                return 1;
        }
        return 0;
}


/***************************************************************************/
int wdtr_done(HCS * pCurHcb)
{
        pCurHcb->HCS_ActTcs->TCS_Flags &= ~TCF_SYNC_DONE;
        pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_WDTR_DONE;

        pCurHcb->HCS_ActTcs->TCS_JS_Period = 0;
        if (pCurHcb->HCS_Msg[2]) {      /* if 16 bit */
                pCurHcb->HCS_ActTcs->TCS_JS_Period |= TSC_WIDE_SCSI;
        }
        pCurHcb->HCS_ActTcs->TCS_SConfig0 &= ~TSC_ALT_PERIOD;
        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0);
        TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period);

        return 1;
}

/***************************************************************************/
int tul_sync_done(HCS * pCurHcb)
{
        int i;

        pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_SYNC_DONE;

        if (pCurHcb->HCS_Msg[3]) {
                pCurHcb->HCS_ActTcs->TCS_JS_Period |= pCurHcb->HCS_Msg[3];
                for (i = 0; i < 8; i++) {
                        if (tul_rate_tbl[i] >= pCurHcb->HCS_Msg[2])     /* pick the big one */
                                break;
                }
                pCurHcb->HCS_ActTcs->TCS_JS_Period |= (i << 4);
                pCurHcb->HCS_ActTcs->TCS_SConfig0 |= TSC_ALT_PERIOD;
        }
        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_ActTcs->TCS_SConfig0);
        TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, pCurHcb->HCS_ActTcs->TCS_JS_Period);

        return (-1);
}


int tul_post_scsi_rst(HCS * pCurHcb)
{
        SCB *pCurScb;
        TCS *pCurTcb;
        int i;

        pCurHcb->HCS_ActScb = 0;
        pCurHcb->HCS_ActTcs = 0;
        pCurHcb->HCS_Flags = 0;

        while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) {
                pCurScb->SCB_HaStat = HOST_BAD_PHAS;
                tul_append_done_scb(pCurHcb, pCurScb);
        }
        /* clear sync done flag         */
        pCurTcb = &pCurHcb->HCS_Tcs[0];
        for (i = 0; i < pCurHcb->HCS_MaxTar; pCurTcb++, i++) {
                pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
                /* Initialize the sync. xfer register values to an asyn xfer */
                pCurTcb->TCS_JS_Period = 0;
                pCurTcb->TCS_SConfig0 = pCurHcb->HCS_SConf1;
                pCurHcb->HCS_ActTags[0] = 0;    /* 07/22/98 */
                pCurHcb->HCS_Tcs[i].TCS_Flags &= ~TCF_BUSY;     /* 07/22/98 */
        }                       /* for */

        return (-1);
}

/***************************************************************************/
void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb)
{
        pCurScb->SCB_Status |= SCB_SELECT;
        pCurScb->SCB_NxtStat = 0x1;
        pCurHcb->HCS_ActScb = pCurScb;
        pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target];
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SELATNSTOP);
        return;
}


/***************************************************************************/
void tul_select_atn(HCS * pCurHcb, SCB * pCurScb)
{
        int i;

        pCurScb->SCB_Status |= SCB_SELECT;
        pCurScb->SCB_NxtStat = 0x2;

        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident);
        for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++)
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]);
        pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target];
        pCurHcb->HCS_ActScb = pCurScb;
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN);
        return;
}

/***************************************************************************/
void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb)
{
        int i;

        pCurScb->SCB_Status |= SCB_SELECT;
        pCurScb->SCB_NxtStat = 0x2;

        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_Ident);
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagMsg);
        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_TagId);
        for (i = 0; i < (int) pCurScb->SCB_CDBLen; i++)
                TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, pCurScb->SCB_CDB[i]);
        pCurHcb->HCS_ActTcs = &pCurHcb->HCS_Tcs[pCurScb->SCB_Target];
        pCurHcb->HCS_ActScb = pCurScb;
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_SEL_ATN3);
        return;
}

/***************************************************************************/
/* SCSI Bus Device Reset */
int tul_bus_device_reset(HCS * pCurHcb)
{
        SCB *pCurScb = pCurHcb->HCS_ActScb;
        TCS *pCurTcb = pCurHcb->HCS_ActTcs;
        SCB *pTmpScb, *pPrevScb;
        BYTE tar;

        if (pCurHcb->HCS_Phase != MSG_OUT) {
                return (int_tul_bad_seq(pCurHcb));      /* Unexpected phase             */
        }
        tul_unlink_pend_scb(pCurHcb, pCurScb);
        tul_release_scb(pCurHcb, pCurScb);


        tar = pCurScb->SCB_Target;      /* target                       */
        pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY);
        /* clr sync. nego & WDTR flags  07/22/98 */

        /* abort all SCB with same target */
        pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;    /* Check Busy queue */
        while (pTmpScb != NULL) {

                if (pTmpScb->SCB_Target == tar) {
                        /* unlink it */
                        if (pTmpScb == pCurHcb->HCS_FirstBusy) {
                                if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL)
                                        pCurHcb->HCS_LastBusy = NULL;
                        } else {
                                pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
                                if (pTmpScb == pCurHcb->HCS_LastBusy)
                                        pCurHcb->HCS_LastBusy = pPrevScb;
                        }
                        pTmpScb->SCB_HaStat = HOST_ABORTED;
                        tul_append_done_scb(pCurHcb, pTmpScb);
                }
                /* Previous haven't change      */
                else {
                        pPrevScb = pTmpScb;
                }
                pTmpScb = pTmpScb->SCB_NxtScb;
        }

        TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_DEVRST);
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);

        return tul_wait_disc(pCurHcb);

}

/***************************************************************************/
int tul_msgin_accept(HCS * pCurHcb)
{
        TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);
        return (wait_tulip(pCurHcb));
}

/***************************************************************************/
int wait_tulip(HCS * pCurHcb)
{

        while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0))
                 & TSS_INT_PENDING));

        pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt);
        pCurHcb->HCS_Phase = pCurHcb->HCS_JSStatus0 & TSS_PH_MASK;
        pCurHcb->HCS_JSStatus1 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus1);

        if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) {       /* if SCSI bus reset detected   */
                return (int_tul_resel(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) {     /* if selected/reselected timeout interrupt */
                return (int_tul_busfree(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) {     /* if SCSI bus reset detected   */
                return (int_tul_scsi_rst(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & TSS_DISC_INT) {        /* BUS disconnection            */
                if (pCurHcb->HCS_Flags & HCF_EXPECT_DONE_DISC) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);         /* Flush SCSI FIFO  */
                        tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb);
                        pCurHcb->HCS_ActScb->SCB_HaStat = 0;
                        tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb);
                        pCurHcb->HCS_ActScb = NULL;
                        pCurHcb->HCS_ActTcs = NULL;
                        pCurHcb->HCS_Flags &= ~HCF_EXPECT_DONE_DISC;
                        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);        /* Enable HW reselect       */
                        return (-1);
                }
                if (pCurHcb->HCS_Flags & HCF_EXPECT_DISC) {
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);         /* Flush SCSI FIFO  */
                        pCurHcb->HCS_ActScb = NULL;
                        pCurHcb->HCS_ActTcs = NULL;
                        pCurHcb->HCS_Flags &= ~HCF_EXPECT_DISC;
                        TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT);
                        TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);        /* Enable HW reselect       */
                        return (-1);
                }
                return (int_tul_busfree(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & (TSS_FUNC_COMP | TSS_BUS_SERV)) {
                return (pCurHcb->HCS_Phase);
        }
        return (pCurHcb->HCS_Phase);
}
/***************************************************************************/
int tul_wait_disc(HCS * pCurHcb)
{

        while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0))
                 & TSS_INT_PENDING));


        pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt);

        if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) {     /* if SCSI bus reset detected   */
                return (int_tul_scsi_rst(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & TSS_DISC_INT) {        /* BUS disconnection            */
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);         /* Flush SCSI FIFO  */
                TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);        /* Enable HW reselect       */
                pCurHcb->HCS_ActScb = NULL;
                return (-1);
        }
        return (tul_bad_seq(pCurHcb));
}

/***************************************************************************/
int tul_wait_done_disc(HCS * pCurHcb)
{


        while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0))
                 & TSS_INT_PENDING));

        pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt);


        if (pCurHcb->HCS_JSInt & TSS_SCSIRST_INT) {     /* if SCSI bus reset detected   */
                return (int_tul_scsi_rst(pCurHcb));
        }
        if (pCurHcb->HCS_JSInt & TSS_DISC_INT) {        /* BUS disconnection            */
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);         /* Flush SCSI FIFO  */
                TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, TSC_INITDEFAULT);
                TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);        /* Enable HW reselect       */
                tul_unlink_busy_scb(pCurHcb, pCurHcb->HCS_ActScb);

                tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb);
                pCurHcb->HCS_ActScb = NULL;
                return (-1);
        }
        return (tul_bad_seq(pCurHcb));
}

/**************************** EOF *********************************/