[SCSI] initio: Convert into a real Linux driver and update to modern style
authorAlan Cox <alan@lxorguk.ukuu.org.uk>
Mon, 21 May 2007 14:06:43 +0000 (15:06 +0100)
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>
Tue, 22 May 2007 16:08:56 +0000 (11:08 -0500)
This is a mix of a grand clean up I did and a reworking of the hotplug
support by Christoph. In testing it works as well as the previous code
did (that is -quite badly-) but we can now read it and as it settles in
actually debug the long standing problems it shares with the old driver.

Signed-off-by: Alan Cox <alan@redhat.com>
From Christoph:

removal of the BSD license is also fine with me, but should really
get a mention in the changelog aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
drivers/scsi/initio.c
drivers/scsi/initio.h

index 7e7635ca78f1835c12db4db76fd4bcccf69be0b7..65ca1424954ed5bbf3b88363223e418f6f3c368a 100644 (file)
@@ -3,7 +3,8 @@
  *
  * Copyright (c) 1994-1998 Initio Corporation
  * Copyright (c) 1998 Bas Vermeulen <bvermeul@blackstar.xs4all.nl>
- * All rights reserved.
+ * Copyright (c) 2004 Christoph Hellwig <hch@lst.de>
+ * Copyright (c) 2007 Red Hat <alan@redhat.com>
  *
  * 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
  * 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.
  *
  *************************************************************************
  *
  *             - Fix memory allocation problem
  * 03/04/98 hc - v1.01l
  *             - Fix tape rewind which will hang the system problem
- *             - Set can_queue to tul_num_scb
+ *             - Set can_queue to initio_num_scb
  * 06/25/98 hc - v1.01m
  *             - Get it work for kernel version >= 2.1.75
- *             - Dynamic assign SCSI bus reset holding time in init_tulip()
+ *             - Dynamic assign SCSI bus reset holding time in initio_init()
  * 07/02/98 hc - v1.01n
  *             - Support 0002134A
  * 08/07/98 hc  - v1.01o
- *             - Change the tul_abort_srb routine to use scsi_done. <01>
+ *             - Change the initio_abort_srb routine to use scsi_done. <01>
  * 09/07/98 hl  - v1.02
  *              - Change the INI9100U define and proc_dir_entry to
  *                reflect the newer Kernel 2.1.118, but the v1.o1o
 static unsigned int i91u_debug = DEBUG_DEFAULT;
 #endif
 
-#define TUL_RDWORD(x,y)         (short)(inl((int)((ULONG)((ULONG)x+(UCHAR)y)) ))
-
-typedef struct PCI_ID_Struc {
-       unsigned short vendor_id;
-       unsigned short device_id;
-} PCI_ID;
-
-static int tul_num_ch = 4;     /* Maximum 4 adapters           */
-static int tul_num_scb;
-static int tul_tag_enable = 1;
-static SCB *tul_scb;
+static int initio_tag_enable = 1;
 
 #ifdef DEBUG_i91u
 static int setup_debug = 0;
 #endif
 
-static void i91uSCBPost(BYTE * pHcb, BYTE * pScb);
+static void i91uSCBPost(u8 * pHcb, u8 * pScb);
 
 /* PCI Devices supported by this driver */
 static struct pci_device_id i91u_pci_devices[] = {
@@ -184,74 +143,66 @@ MODULE_DEVICE_TABLE(pci, i91u_pci_devices);
 #define DEBUG_STATE     0
 #define INT_DISC       0
 
-/*--- 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);
-static 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);
-
-                               /* ---- INTERNAL VARIABLES ---- */
-static HCS tul_hcs[MAX_SUPPORTED_ADAPTERS];
-static INI_ADPT_STRUCT i91u_adpt[MAX_SUPPORTED_ADAPTERS];
-
-/*NVRAM nvram, *nvramp = &nvram; */
+/*--- forward references ---*/
+static struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun);
+static struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host);
+
+static int tulip_main(struct initio_host * host);
+
+static int initio_next_state(struct initio_host * host);
+static int initio_state_1(struct initio_host * host);
+static int initio_state_2(struct initio_host * host);
+static int initio_state_3(struct initio_host * host);
+static int initio_state_4(struct initio_host * host);
+static int initio_state_5(struct initio_host * host);
+static int initio_state_6(struct initio_host * host);
+static int initio_state_7(struct initio_host * host);
+static int initio_xfer_data_in(struct initio_host * host);
+static int initio_xfer_data_out(struct initio_host * host);
+static int initio_xpad_in(struct initio_host * host);
+static int initio_xpad_out(struct initio_host * host);
+static int initio_status_msg(struct initio_host * host);
+
+static int initio_msgin(struct initio_host * host);
+static int initio_msgin_sync(struct initio_host * host);
+static int initio_msgin_accept(struct initio_host * host);
+static int initio_msgout_reject(struct initio_host * host);
+static int initio_msgin_extend(struct initio_host * host);
+
+static int initio_msgout_ide(struct initio_host * host);
+static int initio_msgout_abort_targ(struct initio_host * host);
+static int initio_msgout_abort_tag(struct initio_host * host);
+
+static int initio_bus_device_reset(struct initio_host * host);
+static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb);
+static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb);
+static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb);
+static int int_initio_busfree(struct initio_host * host);
+static int int_initio_scsi_rst(struct initio_host * host);
+static int int_initio_bad_seq(struct initio_host * host);
+static int int_initio_resel(struct initio_host * host);
+static int initio_sync_done(struct initio_host * host);
+static int wdtr_done(struct initio_host * host);
+static int wait_tulip(struct initio_host * host);
+static int initio_wait_done_disc(struct initio_host * host);
+static int initio_wait_disc(struct initio_host * host);
+static void tulip_scsi(struct initio_host * host);
+static int initio_post_scsi_rst(struct initio_host * host);
+
+static void initio_se2_ew_en(unsigned long base);
+static void initio_se2_ew_ds(unsigned long base);
+static int initio_se2_rd_all(unsigned long base);
+static void initio_se2_update_all(unsigned long base); /* setup default pattern */
+static void initio_read_eeprom(unsigned long base);
+
+/* ---- INTERNAL VARIABLES ---- */
+
 static NVRAM i91unvram;
 static NVRAM *i91unvramp;
 
-
-
-static UCHAR i91udftNvRam[64] =
+static u8 i91udftNvRam[64] =
 {
-/*----------- header -----------*/
+       /*----------- header -----------*/
        0x25, 0xc9,             /* Signature    */
        0x40,                   /* Size         */
        0x01,                   /* Revision     */
@@ -289,7 +240,7 @@ static UCHAR i91udftNvRam[64] =
        0, 0};                  /*      - CheckSum -            */
 
 
-static UCHAR tul_rate_tbl[8] = /* fast 20      */
+static u8 initio_rate_tbl[8] = /* fast 20      */
 {
                                /* nanosecond devide by 4 */
        12,                     /* 50ns,  20M   */
@@ -302,53 +253,17 @@ static UCHAR tul_rate_tbl[8] =    /* fast 20      */
        62                      /* 250ns, 4M    */
 };
 
-static void tul_do_pause(unsigned amount)
-{                              /* Pause for amount jiffies */
+static void initio_do_pause(unsigned amount)
+{
+       /* Pause for amount jiffies */
        unsigned long the_time = jiffies + amount;
 
-       while (time_before_eq(jiffies, the_time));
+       while (time_before_eq(jiffies, the_time))
+               cpu_relax();
 }
 
 /*-- forward reference --*/
 
-/*******************************************************************
-       Use memeory refresh time        ~ 15us * 2
-********************************************************************/
-void tul_se2_wait(void)
-{
-#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
 
@@ -379,1174 +294,1019 @@ void tul_se2_wait(void)
 
 
 ******************************************************************/
-static void tul_se2_instr(WORD CurBase, UCHAR instr)
+
+/**
+ *     initio_se2_instr        -       bitbang an instruction
+ *     @base: Base of InitIO controller
+ *     @instr: Instruction for serial E2PROM
+ *
+ *     Bitbang an instruction out to the serial E2Prom
+ */
+
+static void initio_se2_instr(unsigned long base, u8 instr)
 {
        int i;
-       UCHAR b;
+       u8 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();
+       outb(SE2CS | SE2DO, base + TUL_NVRAM);          /* cs+start bit */
+       udelay(30);
+       outb(SE2CS | SE2CLK | SE2DO, base + TUL_NVRAM); /* +CLK */
+       udelay(30);
 
        for (i = 0; i < 8; i++) {
                if (instr & 0x80)
-                       b = SE2CS | SE2DO;      /* -CLK+dataBit */
+                       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();
+                       b = SE2CS;                      /* -CLK */
+               outb(b, base + TUL_NVRAM);
+               udelay(30);
+               outb(b | SE2CLK, base + TUL_NVRAM);     /* +CLK */
+               udelay(30);
                instr <<= 1;
        }
-       TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
-       tul_se2_wait();
-       return;
+       outb(SE2CS, base + TUL_NVRAM);                  /* -CLK */
+       udelay(30);
 }
 
 
-/******************************************************************
- Function name  : tul_se2_ew_en
- Description    : Enable erase/write state of serial EEPROM
-******************************************************************/
-void tul_se2_ew_en(WORD CurBase)
+/**
+ *     initio_se2_ew_en        -       Enable erase/write
+ *     @base: Base address of InitIO controller
+ *
+ *     Enable erase/write state of serial EEPROM
+ */
+void initio_se2_ew_en(unsigned long base)
 {
-       tul_se2_instr(CurBase, 0x30);   /* EWEN */
-       TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
-       tul_se2_wait();
-       return;
+       initio_se2_instr(base, 0x30);   /* EWEN */
+       outb(0, base + TUL_NVRAM);      /* -CS  */
+       udelay(30);
 }
 
 
-/************************************************************************
- Disable erase/write state of serial EEPROM
-*************************************************************************/
-void tul_se2_ew_ds(WORD CurBase)
+/**
+ *     initio_se2_ew_ds        -       Disable erase/write
+ *     @base: Base address of InitIO controller
+ *
+ *     Disable erase/write state of serial EEPROM
+ */
+void initio_se2_ew_ds(unsigned long base)
 {
-       tul_se2_instr(CurBase, 0);      /* EWDS */
-       TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
-       tul_se2_wait();
-       return;
+       initio_se2_instr(base, 0);      /* EWDS */
+       outb(0, base + TUL_NVRAM);      /* -CS  */
+       udelay(30);
 }
 
 
-/******************************************************************
-       Input  :address of Serial E2PROM
-       Output :value stored in  Serial E2PROM
-*******************************************************************/
-static USHORT tul_se2_rd(WORD CurBase, ULONG adr)
+/**
+ *     initio_se2_rd           -       read E2PROM word
+ *     @base: Base of InitIO controller
+ *     @addr: Address of word in E2PROM
+ *
+ *     Read a word from the NV E2PROM device
+ */
+static u16 initio_se2_rd(unsigned long base, u8 addr)
 {
-       UCHAR instr, readByte;
-       USHORT readWord;
+       u8 instr, rb;
+       u16 val = 0;
        int i;
 
-       instr = (UCHAR) (adr | 0x80);
-       tul_se2_instr(CurBase, instr);  /* READ INSTR */
-       readWord = 0;
+       instr = (u8) (addr | 0x80);
+       initio_se2_instr(base, instr);  /* READ INSTR */
 
        for (i = 15; i >= 0; i--) {
-               TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2CLK);    /* +CLK */
-               tul_se2_wait();
-               TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
+               outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
+               udelay(30);
+               outb(SE2CS, base + TUL_NVRAM);          /* -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 */
+               rb = inb(base + TUL_NVRAM);
+               rb &= SE2DI;
+               val += (rb << i);
+               udelay(30);     /* 6/20/95 */
        }
 
-       TUL_WR(CurBase + TUL_NVRAM, 0);         /* no chip select */
-       tul_se2_wait();
-       return readWord;
+       outb(0, base + TUL_NVRAM);              /* no chip select */
+       udelay(30);
+       return val;
 }
 
-
-/******************************************************************
- Input: new value in  Serial E2PROM, address of Serial E2PROM
-*******************************************************************/
-static void tul_se2_wr(WORD CurBase, UCHAR adr, USHORT writeWord)
+/**
+ *     initio_se2_wr           -       read E2PROM word
+ *     @base: Base of InitIO controller
+ *     @addr: Address of word in E2PROM
+ *     @val: Value to write
+ *
+ *     Write a word to the NV E2PROM device. Used when recovering from
+ *     a problem with the NV.
+ */
+static void initio_se2_wr(unsigned long base, u8 addr, u16 val)
 {
-       UCHAR readByte;
-       UCHAR instr;
+       u8 rb;
+       u8 instr;
        int i;
 
-       instr = (UCHAR) (adr | 0x40);
-       tul_se2_instr(CurBase, instr);  /* WRITE INSTR */
+       instr = (u8) (addr | 0x40);
+       initio_se2_instr(base, instr);  /* WRITE INSTR */
        for (i = 15; i >= 0; i--) {
-               if (writeWord & 0x8000)
-                       TUL_WR(CurBase + TUL_NVRAM, SE2CS | SE2DO);     /* -CLK+dataBit 1 */
+               if (val & 0x8000)
+                       outb(SE2CS | SE2DO, base + TUL_NVRAM);  /* -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;
+                       outb(SE2CS, base + TUL_NVRAM);          /* -CLK+dataBit 0 */
+               udelay(30);
+               outb(SE2CS | SE2CLK, base + TUL_NVRAM);         /* +CLK */
+               udelay(30);
+               val <<= 1;
        }
-       TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* -CLK */
-       tul_se2_wait();
-       TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS  */
-       tul_se2_wait();
+       outb(SE2CS, base + TUL_NVRAM);                          /* -CLK */
+       udelay(30);
+       outb(0, base + TUL_NVRAM);                              /* -CS  */
+       udelay(30);
 
-       TUL_WR(CurBase + TUL_NVRAM, SE2CS);     /* +CS  */
-       tul_se2_wait();
+       outb(SE2CS, base + TUL_NVRAM);                          /* +CS  */
+       udelay(30);
 
        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)
+               outb(SE2CS | SE2CLK, base + TUL_NVRAM);         /* +CLK */
+               udelay(30);
+               outb(SE2CS, base + TUL_NVRAM);                  /* -CLK */
+               udelay(30);
+               if ((rb = inb(base + TUL_NVRAM)) & SE2DI)
                        break;  /* write complete */
        }
-       TUL_WR(CurBase + TUL_NVRAM, 0);         /* -CS */
-       return;
+       outb(0, base + TUL_NVRAM);                              /* -CS */
 }
 
+/**
+ *     initio_se2_rd_all       -       read hostadapter NV configuration
+ *     @base: Base address of InitIO controller
+ *
+ *     Reads the E2PROM data into main memory. Ensures that the checksum
+ *     and header marker are valid. Returns 1 on success -1 on error.
+ */
 
-/***********************************************************************
- Read SCSI H/A configuration parameters from serial EEPROM
-************************************************************************/
-int tul_se2_rd_all(WORD CurBase)
+static int initio_se2_rd_all(unsigned long base)
 {
        int i;
-       ULONG chksum = 0;
-       USHORT *np;
+       u16 chksum = 0;
+       u16 *np;
 
        i91unvramp = &i91unvram;
-       np = (USHORT *) i91unvramp;
-       for (i = 0; i < 32; i++) {
-               *np++ = tul_se2_rd(CurBase, i);
-       }
+       np = (u16 *) i91unvramp;
+       for (i = 0; i < 32; i++)
+               *np++ = initio_se2_rd(base, i);
 
-/*--------------------Is signature "ini" ok ? ----------------*/
+       /* Is signature "ini" ok ? */
        if (i91unvramp->NVM_Signature != INI_SIGNATURE)
                return -1;
-/*---------------------- Is ckecksum ok ? ----------------------*/
-       np = (USHORT *) i91unvramp;
+       /* Is ckecksum ok ? */
+       np = (u16 *) i91unvramp;
        for (i = 0; i < 31; i++)
                chksum += *np++;
-       if (i91unvramp->NVM_CheckSum != (USHORT) chksum)
+       if (i91unvramp->NVM_CheckSum != chksum)
                return -1;
        return 1;
 }
 
-
-/***********************************************************************
- Update SCSI H/A configuration parameters from serial EEPROM
-************************************************************************/
-void tul_se2_update_all(WORD CurBase)
+/**
+ *     initio_se2_update_all           -       Update E2PROM
+ *     @base: Base of InitIO controller
+ *
+ *     Update the E2PROM by wrting any changes into the E2PROM
+ *     chip, rewriting the checksum.
+ */
+static void initio_se2_update_all(unsigned long base)
 {                              /* setup default pattern */
        int i;
-       ULONG chksum = 0;
-       USHORT *np, *np1;
+       u16 chksum = 0;
+       u16 *np, *np1;
 
        i91unvramp = &i91unvram;
        /* Calculate checksum first */
-       np = (USHORT *) i91udftNvRam;
+       np = (u16 *) i91udftNvRam;
        for (i = 0; i < 31; i++)
                chksum += *np++;
-       *np = (USHORT) chksum;
-       tul_se2_ew_en(CurBase); /* Enable write  */
+       *np = chksum;
+       initio_se2_ew_en(base); /* Enable write  */
 
-       np = (USHORT *) i91udftNvRam;
-       np1 = (USHORT *) i91unvramp;
+       np = (u16 *) i91udftNvRam;
+       np1 = (u16 *) i91unvramp;
        for (i = 0; i < 32; i++, np++, np1++) {
-               if (*np != *np1) {
-                       tul_se2_wr(CurBase, i, *np);
-               }
+               if (*np != *np1)
+                       initio_se2_wr(base, i, *np);
        }
-
-       tul_se2_ew_ds(CurBase); /* Disable write   */
-       return;
+       initio_se2_ew_ds(base); /* Disable write   */
 }
 
-/*************************************************************************
- 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 */
+/**
+ *     initio_read_eeprom              -       Retrieve configuration
+ *     @base: Base of InitIO Host Adapter
+ *
+ *     Retrieve the host adapter configuration data from E2Prom. If the
+ *     data is invalid then the defaults are used and are also restored
+ *     into the E2PROM. This forms the access point for the SCSI driver
+ *     into the E2PROM layer, the other functions for the E2PROM are all
+ *     internal use.
+ *
+ *     Must be called single threaded, uses a shared global area.
+ */
 
-static int Addi91u_into_Adapter_table(WORD wBIOS, WORD wBASE, BYTE bInterrupt,
-                                     BYTE bBus, BYTE bDevice)
+static void initio_read_eeprom(unsigned long base)
 {
-       int i, j;
+       u8 gctrl;
 
-       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 1;
-                       } 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 0;
+       i91unvramp = &i91unvram;
+       /* Enable EEProm programming */
+       gctrl = inb(base + TUL_GCTRL);
+       outb(gctrl | TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
+       if (initio_se2_rd_all(base) != 1) {
+               initio_se2_update_all(base);    /* setup default pattern */
+               initio_se2_rd_all(base);        /* load again  */
        }
-       return 1;
+       /* Disable EEProm programming */
+       gctrl = inb(base + TUL_GCTRL);
+       outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
 }
 
-static 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;
-}
+/**
+ *     initio_stop_bm          -       stop bus master
+ *     @host: InitIO we are stopping
+ *
+ *     Stop any pending DMA operation, aborting the DMA if neccessary
+ */
 
-static void tul_stop_bm(HCS * pCurHcb)
+static void initio_stop_bm(struct initio_host * host)
 {
 
-       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);
+       if (inb(host->addr + TUL_XStatus) & XPEND) {    /* if DMA xfer is pending, abort DMA xfer */
+               outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
                /* wait Abort DMA xfer done */
-               while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0);
+               while ((inb(host->addr + TUL_Int) & XABT) == 0)
+                       cpu_relax();
        }
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
+       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
 }
 
-/***************************************************************************/
-static 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;
-}
+/**
+ *     initio_reset_scsi               -       Reset SCSI host controller
+ *     @host: InitIO host to reset
+ *     @seconds: Recovery time
+ *
+ *     Perform a full reset of the SCSI subsystem.
+ */
 
-/***************************************************************************/
-static int tul_reset_scsi(HCS * pCurHcb, int seconds)
+static int initio_reset_scsi(struct initio_host * host, int seconds)
 {
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_BUS);
+       outb(TSC_RST_BUS, host->addr + TUL_SCtrl0);
 
-       while (!((pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt)) & TSS_SCSIRST_INT));
-       /* reset tulip chip */
+       while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT))
+               cpu_relax();
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, 0);
+       /* reset tulip chip */
+       outb(0, host->addr + TUL_SSignal);
 
        /* 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);
+       /* FIXME: this is a very long busy wait right now */
+       initio_do_pause(seconds * HZ);
 
-       return (SCSI_RESET_SUCCESS);
+       inb(host->addr + TUL_SInt);
+       return SCSI_RESET_SUCCESS;
 }
 
-/***************************************************************************/
-static int init_tulip(HCS * pCurHcb, SCB * scbp, int tul_num_scb,
-                     BYTE * pbBiosAdr, int seconds)
+/**
+ *     initio_init             -       set up an InitIO host adapter
+ *     @host: InitIO host adapter
+ *     @num_scbs: Number of SCBS
+ *     @bios_addr: BIOS address
+ *
+ *     Set up the host adapter and devices according to the configuration
+ *     retrieved from the E2PROM.
+ *
+ *     Locking: Calls E2PROM layer code which is not re-enterable so must
+ *     run single threaded for now.
+ */
+
+static void initio_init(struct initio_host * host, u8 *bios_addr)
 {
        int i;
-       BYTE *pwFlags;
-       BYTE *pbHeads;
-       SCB *pTmpScb, *pPrevScb = NULL;
-
-       pCurHcb->HCS_NumScbs = tul_num_scb;
-       pCurHcb->HCS_Semaph = 1;
-       spin_lock_init(&pCurHcb->HCS_SemaphLock);
-       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;
-       spin_lock_init(&pCurHcb->HCS_AvailLock);
-       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 -------------*/
+       u8 *flags;
+       u8 *heads;
+
+       /* Get E2Prom configuration */
+       initio_read_eeprom(host->addr);
        if (i91unvramp->NVM_SCSIInfo[0].NVM_NumOfTarg == 8)
-               pCurHcb->HCS_MaxTar = 8;
+               host->max_tar = 8;
        else
-               pCurHcb->HCS_MaxTar = 16;
+               host->max_tar = 16;
 
-       pCurHcb->HCS_Config = i91unvramp->NVM_SCSIInfo[0].NVM_ChConfig1;
+       host->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);
+       host->scsi_id = i91unvramp->NVM_SCSIInfo[0].NVM_ChSCSIID;
+       host->idmask = ~(1 << host->scsi_id);
 
 #ifdef CHK_PARITY
        /* Enable parity error response */
-       TUL_WR(pCurHcb->HCS_Base + TUL_PCMD, TUL_RD(pCurHcb->HCS_Base, TUL_PCMD) | 0x40);
+       outb(inb(host->addr + TUL_PCMD) | 0x40, host->addr + TUL_PCMD);
 #endif
 
        /* Mask all the interrupt       */
-       TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
+       outb(0x1F, host->addr + TUL_Mask);
 
-       tul_stop_bm(pCurHcb);
+       initio_stop_bm(host);
        /* --- Initialize the tulip --- */
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_RST_CHIP);
+       outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0);
 
        /* program HBA's SCSI ID        */
-       TUL_WR(pCurHcb->HCS_Base + TUL_SScsiId, pCurHcb->HCS_SCSI_ID << 4);
+       outb(host->scsi_id << 4, host->addr + TUL_SScsiId);
 
        /* 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);
+       if (host->config & HCC_EN_PAR)
+               host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR);
        else
-               pCurHcb->HCS_SConf1 = (TSC_INITDEFAULT);
-       TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurHcb->HCS_SConf1);
+               host->sconf1 = (TSC_INITDEFAULT);
+       outb(host->sconf1, host->addr + TUL_SConfig);
 
-       /* Enable HW reselect           */
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl1, TSC_HW_RESELECT);
+       /* Enable HW reselect */
+       outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SPeriod, 0);
+       outb(0, host->addr + TUL_SPeriod);
 
        /* selection time out = 250 ms */
-       TUL_WR(pCurHcb->HCS_Base + TUL_STimeOut, 153);
+       outb(153, host->addr + TUL_STimeOut);
 
-/*--------- 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));
+       /* Enable SCSI terminator */
+       outb((host->config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)),
+               host->addr + TUL_XCtrl);
+       outb(((host->config & HCC_AUTO_TERM) >> 4) |
+               (inb(host->addr + TUL_GCTRL1) & 0xFE),
+               host->addr + TUL_GCTRL1);
 
        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;
+            flags = & (i91unvramp->NVM_SCSIInfo[0].NVM_Targ0Config),
+            heads = bios_addr + 0x180;
+            i < host->max_tar;
+            i++, flags++) {
+               host->targets[i].flags = *flags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
+               if (host->targets[i].flags & TCF_EN_255)
+                       host->targets[i].drv_flags = 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;
+                       host->targets[i].drv_flags = 0;
+               host->targets[i].js_period = 0;
+               host->targets[i].sconfig0 = host->sconf1;
+               host->targets[i].heads = *heads++;
+               if (host->targets[i].heads == 255)
+                       host->targets[i].drv_flags = 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;
+                       host->targets[i].drv_flags = 0;
+               host->targets[i].sectors = *heads++;
+               host->targets[i].flags &= ~TCF_BUSY;
+               host->act_tags[i] = 0;
+               host->max_tags[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);
+              host->addr, host->irq,
+              host->bios_addr, host->scsi_id);
+       /* Reset SCSI Bus */
+       if (host->config & HCC_SCSI_RESET) {
+               printk(KERN_INFO "i91u: Reset SCSI Bus ... \n");
+               initio_reset_scsi(host, 10);
        }
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCFG1, 0x17);
-       TUL_WR(pCurHcb->HCS_Base + TUL_SIntEnable, 0xE9);
-       return (0);
+       outb(0x17, host->addr + TUL_SCFG1);
+       outb(0xE9, host->addr + TUL_SIntEnable);
 }
 
-/***************************************************************************/
-static SCB *tul_alloc_scb(HCS * hcsp)
+/**
+ *     initio_alloc_scb                -       Allocate an SCB
+ *     @host: InitIO host we are allocating for
+ *
+ *     Walk the SCB list for the controller and allocate a free SCB if
+ *     one exists.
+ */
+static struct scsi_ctrl_blk *initio_alloc_scb(struct initio_host *host)
 {
-       SCB *pTmpScb;
-       ULONG flags;
-       spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags);
-       if ((pTmpScb = hcsp->HCS_FirstAvail) != NULL) {
+       struct scsi_ctrl_blk *scb;
+       unsigned long flags;
+
+       spin_lock_irqsave(&host->avail_lock, flags);
+       if ((scb = host->first_avail) != NULL) {
 #if DEBUG_QUEUE
-               printk("find scb at %08lx\n", (ULONG) pTmpScb);
+               printk("find scb at %p\n", scb);
 #endif
-               if ((hcsp->HCS_FirstAvail = pTmpScb->SCB_NxtScb) == NULL)
-                       hcsp->HCS_LastAvail = NULL;
-               pTmpScb->SCB_NxtScb = NULL;
-               pTmpScb->SCB_Status = SCB_RENT;
+               if ((host->first_avail = scb->next) == NULL)
+                       host->last_avail = NULL;
+               scb->next = NULL;
+               scb->status = SCB_RENT;
        }
-       spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags);
-       return (pTmpScb);
+       spin_unlock_irqrestore(&host->avail_lock, flags);
+       return scb;
 }
 
-/***************************************************************************/
-static void tul_release_scb(HCS * hcsp, SCB * scbp)
+/**
+ *     initio_release_scb              -       Release an SCB
+ *     @host: InitIO host that owns the SCB
+ *     @cmnd: SCB command block being returned
+ *
+ *     Return an allocated SCB to the host free list
+ */
+
+static void initio_release_scb(struct initio_host * host, struct scsi_ctrl_blk * cmnd)
 {
-       ULONG flags;
+       unsigned long flags;
 
 #if DEBUG_QUEUE
-       printk("Release SCB %lx; ", (ULONG) scbp);
+       printk("Release SCB %p; ", cmnd);
 #endif
-       spin_lock_irqsave(&(hcsp->HCS_AvailLock), flags);
-       scbp->SCB_Srb = NULL;
-       scbp->SCB_Status = 0;
-       scbp->SCB_NxtScb = NULL;
-       if (hcsp->HCS_LastAvail != NULL) {
-               hcsp->HCS_LastAvail->SCB_NxtScb = scbp;
-               hcsp->HCS_LastAvail = scbp;
+       spin_lock_irqsave(&(host->avail_lock), flags);
+       cmnd->srb = NULL;
+       cmnd->status = 0;
+       cmnd->next = NULL;
+       if (host->last_avail != NULL) {
+               host->last_avail->next = cmnd;
+               host->last_avail = cmnd;
        } else {
-               hcsp->HCS_FirstAvail = scbp;
-               hcsp->HCS_LastAvail = scbp;
+               host->first_avail = cmnd;
+               host->last_avail = cmnd;
        }
-       spin_unlock_irqrestore(&(hcsp->HCS_AvailLock), flags);
+       spin_unlock_irqrestore(&(host->avail_lock), flags);
 }
 
 /***************************************************************************/
-static void tul_append_pend_scb(HCS * pCurHcb, SCB * scbp)
+static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
 {
 
 #if DEBUG_QUEUE
-       printk("Append pend SCB %lx; ", (ULONG) scbp);
+       printk("Append pend SCB %p; ", 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;
+       scbp->status = SCB_PEND;
+       scbp->next = NULL;
+       if (host->last_pending != NULL) {
+               host->last_pending->next = scbp;
+               host->last_pending = scbp;
        } else {
-               pCurHcb->HCS_FirstPend = scbp;
-               pCurHcb->HCS_LastPend = scbp;
+               host->first_pending = scbp;
+               host->last_pending = scbp;
        }
 }
 
 /***************************************************************************/
-static void tul_push_pend_scb(HCS * pCurHcb, SCB * scbp)
+static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
 {
 
 #if DEBUG_QUEUE
-       printk("Push pend SCB %lx; ", (ULONG) scbp);
+       printk("Push pend SCB %p; ", scbp);
 #endif
-       scbp->SCB_Status = SCB_PEND;
-       if ((scbp->SCB_NxtScb = pCurHcb->HCS_FirstPend) != NULL) {
-               pCurHcb->HCS_FirstPend = scbp;
+       scbp->status = SCB_PEND;
+       if ((scbp->next = host->first_pending) != NULL) {
+               host->first_pending = scbp;
        } else {
-               pCurHcb->HCS_FirstPend = scbp;
-               pCurHcb->HCS_LastPend = scbp;
+               host->first_pending = scbp;
+               host->last_pending = scbp;
        }
 }
 
-/***************************************************************************/
-static SCB *tul_find_first_pend_scb(HCS * pCurHcb)
+static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host)
 {
-       SCB *pFirstPend;
+       struct scsi_ctrl_blk *first;
 
 
-       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);
-                       }
+       first = host->first_pending;
+       while (first != NULL) {
+               if (first->opcode != ExecSCSI)
+                       return first;
+               if (first->tagmsg == 0) {
+                       if ((host->act_tags[first->target] == 0) &&
+                           !(host->targets[first->target].flags & TCF_BUSY))
+                               return first;
                } 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;
+                       if ((host->act_tags[first->target] >=
+                         host->max_tags[first->target]) |
+                           (host->targets[first->target].flags & TCF_BUSY)) {
+                               first = first->next;
                                continue;
                        }
-                       return (pFirstPend);
+                       return first;
                }
-               pFirstPend = pFirstPend->SCB_NxtScb;
+               first = first->next;
        }
-
-
-       return (pFirstPend);
+       return first;
 }
-/***************************************************************************/
-static void tul_unlink_pend_scb(HCS * pCurHcb, SCB * pCurScb)
+
+static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
-       SCB *pTmpScb, *pPrevScb;
+       struct scsi_ctrl_blk *tmp, *prev;
 
 #if DEBUG_QUEUE
-       printk("unlink pend SCB %lx; ", (ULONG) pCurScb);
+       printk("unlink pend SCB %p; ", scb);
 #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;
+       prev = tmp = host->first_pending;
+       while (tmp != NULL) {
+               if (scb == tmp) {       /* Unlink this SCB              */
+                       if (tmp == host->first_pending) {
+                               if ((host->first_pending = tmp->next) == NULL)
+                                       host->last_pending = NULL;
                        } else {
-                               pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
-                               if (pTmpScb == pCurHcb->HCS_LastPend)
-                                       pCurHcb->HCS_LastPend = pPrevScb;
+                               prev->next = tmp->next;
+                               if (tmp == host->last_pending)
+                                       host->last_pending = prev;
                        }
-                       pTmpScb->SCB_NxtScb = NULL;
+                       tmp->next = NULL;
                        break;
                }
-               pPrevScb = pTmpScb;
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               prev = tmp;
+               tmp = tmp->next;
        }
-       return;
 }
-/***************************************************************************/
-static void tul_append_busy_scb(HCS * pCurHcb, SCB * scbp)
+
+static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
 {
 
 #if DEBUG_QUEUE
-       printk("append busy SCB %lx; ", (ULONG) scbp);
+       printk("append busy SCB %o; ", scbp);
 #endif
-       if (scbp->SCB_TagMsg)
-               pCurHcb->HCS_ActTags[scbp->SCB_Target]++;
+       if (scbp->tagmsg)
+               host->act_tags[scbp->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;
+               host->targets[scbp->target].flags |= TCF_BUSY;
+       scbp->status = SCB_BUSY;
+       scbp->next = NULL;
+       if (host->last_busy != NULL) {
+               host->last_busy->next = scbp;
+               host->last_busy = scbp;
        } else {
-               pCurHcb->HCS_FirstBusy = scbp;
-               pCurHcb->HCS_LastBusy = scbp;
+               host->first_busy = scbp;
+               host->last_busy = scbp;
        }
 }
 
 /***************************************************************************/
-static SCB *tul_pop_busy_scb(HCS * pCurHcb)
+static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host)
 {
-       SCB *pTmpScb;
+       struct scsi_ctrl_blk *tmp;
 
 
-       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]--;
+       if ((tmp = host->first_busy) != NULL) {
+               if ((host->first_busy = tmp->next) == NULL)
+                       host->last_busy = NULL;
+               tmp->next = NULL;
+               if (tmp->tagmsg)
+                       host->act_tags[tmp->target]--;
                else
-                       pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY;
+                       host->targets[tmp->target].flags &= ~TCF_BUSY;
        }
 #if DEBUG_QUEUE
-       printk("Pop busy SCB %lx; ", (ULONG) pTmpScb);
+       printk("Pop busy SCB %p; ", tmp);
 #endif
-       return (pTmpScb);
+       return tmp;
 }
 
 /***************************************************************************/
-static void tul_unlink_busy_scb(HCS * pCurHcb, SCB * pCurScb)
+static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
-       SCB *pTmpScb, *pPrevScb;
+       struct scsi_ctrl_blk *tmp, *prev;
 
 #if DEBUG_QUEUE
-       printk("unlink busy SCB %lx; ", (ULONG) pCurScb);
+       printk("unlink busy SCB %p; ", scb);
 #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;
+       prev = tmp = host->first_busy;
+       while (tmp != NULL) {
+               if (scb == tmp) {       /* Unlink this SCB              */
+                       if (tmp == host->first_busy) {
+                               if ((host->first_busy = tmp->next) == NULL)
+                                       host->last_busy = NULL;
                        } else {
-                               pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
-                               if (pTmpScb == pCurHcb->HCS_LastBusy)
-                                       pCurHcb->HCS_LastBusy = pPrevScb;
+                               prev->next = tmp->next;
+                               if (tmp == host->last_busy)
+                                       host->last_busy = prev;
                        }
-                       pTmpScb->SCB_NxtScb = NULL;
-                       if (pTmpScb->SCB_TagMsg)
-                               pCurHcb->HCS_ActTags[pTmpScb->SCB_Target]--;
+                       tmp->next = NULL;
+                       if (tmp->tagmsg)
+                               host->act_tags[tmp->target]--;
                        else
-                               pCurHcb->HCS_Tcs[pTmpScb->SCB_Target].TCS_Flags &= ~TCF_BUSY;
+                               host->targets[tmp->target].flags &= ~TCF_BUSY;
                        break;
                }
-               pPrevScb = pTmpScb;
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               prev = tmp;
+               tmp = tmp->next;
        }
        return;
 }
 
-/***************************************************************************/
-SCB *tul_find_busy_scb(HCS * pCurHcb, WORD tarlun)
+struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun)
 {
-       SCB *pTmpScb, *pPrevScb;
-       WORD scbp_tarlun;
+       struct scsi_ctrl_blk *tmp, *prev;
+       u16 scbp_tarlun;
 
 
-       pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;
-       while (pTmpScb != NULL) {
-               scbp_tarlun = (pTmpScb->SCB_Lun << 8) | (pTmpScb->SCB_Target);
+       prev = tmp = host->first_busy;
+       while (tmp != NULL) {
+               scbp_tarlun = (tmp->lun << 8) | (tmp->target);
                if (scbp_tarlun == tarlun) {    /* Unlink this SCB              */
                        break;
                }
-               pPrevScb = pTmpScb;
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               prev = tmp;
+               tmp = tmp->next;
        }
 #if DEBUG_QUEUE
-       printk("find busy SCB %lx; ", (ULONG) pTmpScb);
+       printk("find busy SCB %p; ", tmp);
 #endif
-       return (pTmpScb);
+       return tmp;
 }
 
-/***************************************************************************/
-static void tul_append_done_scb(HCS * pCurHcb, SCB * scbp)
+static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
 {
-
 #if DEBUG_QUEUE
-       printk("append done SCB %lx; ", (ULONG) scbp);
+       printk("append done SCB %p; ", 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;
+       scbp->status = SCB_DONE;
+       scbp->next = NULL;
+       if (host->last_done != NULL) {
+               host->last_done->next = scbp;
+               host->last_done = scbp;
        } else {
-               pCurHcb->HCS_FirstDone = scbp;
-               pCurHcb->HCS_LastDone = scbp;
+               host->first_done = scbp;
+               host->last_done = scbp;
        }
 }
 
-/***************************************************************************/
-SCB *tul_find_done_scb(HCS * pCurHcb)
+struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host)
 {
-       SCB *pTmpScb;
+       struct scsi_ctrl_blk *tmp;
 
-
-       if ((pTmpScb = pCurHcb->HCS_FirstDone) != NULL) {
-               if ((pCurHcb->HCS_FirstDone = pTmpScb->SCB_NxtScb) == NULL)
-                       pCurHcb->HCS_LastDone = NULL;
-               pTmpScb->SCB_NxtScb = NULL;
+       if ((tmp = host->first_done) != NULL) {
+               if ((host->first_done = tmp->next) == NULL)
+                       host->last_done = NULL;
+               tmp->next = NULL;
        }
 #if DEBUG_QUEUE
-       printk("find done SCB %lx; ", (ULONG) pTmpScb);
+       printk("find done SCB %p; ",tmp);
 #endif
-       return (pTmpScb);
+       return tmp;
 }
 
-/***************************************************************************/
-static int tul_abort_srb(HCS * pCurHcb, struct scsi_cmnd *srbp)
+static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp)
 {
-       ULONG flags;
-       SCB *pTmpScb, *pPrevScb;
+       unsigned long flags;
+       struct scsi_ctrl_blk *tmp, *prev;
 
-       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
+       spin_lock_irqsave(&host->semaph_lock, flags);
 
-       if ((pCurHcb->HCS_Semaph == 0) && (pCurHcb->HCS_ActScb == NULL)) {
-               TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
+       if ((host->semaph == 0) && (host->active == NULL)) {
                /* disable Jasmin SCSI Int        */
-
-                spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
-               tulip_main(pCurHcb);
-
-               spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-               pCurHcb->HCS_Semaph = 1;
-               TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
-
-               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
+               outb(0x1F, host->addr + TUL_Mask);
+               spin_unlock_irqrestore(&host->semaph_lock, flags);
+               /* FIXME: synchronize_irq needed ? */
+               tulip_main(host);
+               spin_lock_irqsave(&host->semaph_lock, flags);
+               host->semaph = 1;
+               outb(0x0F, host->addr + TUL_Mask);
+               spin_unlock_irqrestore(&host->semaph_lock, flags);
                return SCSI_ABORT_SNOOZE;
        }
-       pPrevScb = pTmpScb = pCurHcb->HCS_FirstPend;    /* Check Pend queue */
-       while (pTmpScb != NULL) {
+       prev = tmp = host->first_pending;       /* Check Pend queue */
+       while (tmp != NULL) {
                /* 07/27/98 */
-               if (pTmpScb->SCB_Srb == srbp) {
-                       if (pTmpScb == pCurHcb->HCS_ActScb) {
-                               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+               if (tmp->srb == srbp) {
+                       if (tmp == host->active) {
+                               spin_unlock_irqrestore(&host->semaph_lock, flags);
                                return SCSI_ABORT_BUSY;
-                       } else if (pTmpScb == pCurHcb->HCS_FirstPend) {
-                               if ((pCurHcb->HCS_FirstPend = pTmpScb->SCB_NxtScb) == NULL)
-                                       pCurHcb->HCS_LastPend = NULL;
+                       } else if (tmp == host->first_pending) {
+                               if ((host->first_pending = tmp->next) == NULL)
+                                       host->last_pending = NULL;
                        } else {
-                               pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
-                               if (pTmpScb == pCurHcb->HCS_LastPend)
-                                       pCurHcb->HCS_LastPend = pPrevScb;
+                               prev->next = tmp->next;
+                               if (tmp == host->last_pending)
+                                       host->last_pending = prev;
                        }
-                       pTmpScb->SCB_HaStat = HOST_ABORTED;
-                       pTmpScb->SCB_Flags |= SCF_DONE;
-                       if (pTmpScb->SCB_Flags & SCF_POST)
-                               (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb);
-                       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+                       tmp->hastat = HOST_ABORTED;
+                       tmp->flags |= SCF_DONE;
+                       if (tmp->flags & SCF_POST)
+                               (*tmp->post) ((u8 *) host, (u8 *) tmp);
+                       spin_unlock_irqrestore(&host->semaph_lock, flags);
                        return SCSI_ABORT_SUCCESS;
                }
-               pPrevScb = pTmpScb;
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               prev = tmp;
+               tmp = tmp->next;
        }
 
-       pPrevScb = pTmpScb = pCurHcb->HCS_FirstBusy;    /* Check Busy queue */
-       while (pTmpScb != NULL) {
-
-               if (pTmpScb->SCB_Srb == srbp) {
-
-                       if (pTmpScb == pCurHcb->HCS_ActScb) {
-                               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+       prev = tmp = host->first_busy;  /* Check Busy queue */
+       while (tmp != NULL) {
+               if (tmp->srb == srbp) {
+                       if (tmp == host->active) {
+                               spin_unlock_irqrestore(&host->semaph_lock, flags);
                                return SCSI_ABORT_BUSY;
-                       } else if (pTmpScb->SCB_TagMsg == 0) {
-                               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+                       } else if (tmp->tagmsg == 0) {
+                               spin_unlock_irqrestore(&host->semaph_lock, flags);
                                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;
+                               host->act_tags[tmp->target]--;
+                               if (tmp == host->first_busy) {
+                                       if ((host->first_busy = tmp->next) == NULL)
+                                               host->last_busy = NULL;
                                } else {
-                                       pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
-                                       if (pTmpScb == pCurHcb->HCS_LastBusy)
-                                               pCurHcb->HCS_LastBusy = pPrevScb;
+                                       prev->next = tmp->next;
+                                       if (tmp == host->last_busy)
+                                               host->last_busy = prev;
                                }
-                               pTmpScb->SCB_NxtScb = NULL;
+                               tmp->next = NULL;
 
 
-                               pTmpScb->SCB_HaStat = HOST_ABORTED;
-                               pTmpScb->SCB_Flags |= SCF_DONE;
-                               if (pTmpScb->SCB_Flags & SCF_POST)
-                                       (*pTmpScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pTmpScb);
-                               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+                               tmp->hastat = HOST_ABORTED;
+                               tmp->flags |= SCF_DONE;
+                               if (tmp->flags & SCF_POST)
+                                       (*tmp->post) ((u8 *) host, (u8 *) tmp);
+                               spin_unlock_irqrestore(&host->semaph_lock, flags);
                                return SCSI_ABORT_SUCCESS;
                        }
                }
-               pPrevScb = pTmpScb;
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               prev = tmp;
+               tmp = tmp->next;
        }
-       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-       return (SCSI_ABORT_NOT_RUNNING);
+       spin_unlock_irqrestore(&host->semaph_lock, flags);
+       return SCSI_ABORT_NOT_RUNNING;
 }
 
 /***************************************************************************/
-static int tul_bad_seq(HCS * pCurHcb)
+static int initio_bad_seq(struct initio_host * host)
 {
-       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));
-}
-
-#if 0
-
-/************************************************************************/
-static int tul_device_reset(HCS * pCurHcb, struct scsi_cmnd *pSrb,
-                           unsigned int target, unsigned int ResetFlags)
-{
-       ULONG flags;
-       SCB *pScb;
-       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-       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        */
-
-                       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
-                       tulip_main(pCurHcb);
-
-                       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-                       pCurHcb->HCS_Semaph = 1;
-                       TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
-
-                       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
-                       return SCSI_RESET_SNOOZE;
-               }
-               pScb = pCurHcb->HCS_FirstBusy;  /* Check Busy queue */
-               while (pScb != NULL) {
-                       if (pScb->SCB_Srb == pSrb)
-                               break;
-                       pScb = pScb->SCB_NxtScb;
-               }
-               if (pScb == NULL) {
-                       printk("Unable to Reset - No SCB Found\n");
-
-                       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-                       return SCSI_RESET_NOT_RUNNING;
-               }
-       }
-       if ((pScb = tul_alloc_scb(pCurHcb)) == NULL) {
-               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-               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 = NULL;
-       if (ResetFlags & SCSI_RESET_SYNCHRONOUS) {
-               pScb->SCB_Srb = 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;
-
-               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+       struct scsi_ctrl_blk *scb;
 
-               tulip_main(pCurHcb);
+       printk("initio_bad_seg c=%d\n", host->index);
 
-                spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-               pCurHcb->HCS_Semaph = 1;
-               TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
+       if ((scb = host->active) != NULL) {
+               initio_unlink_busy_scb(host, scb);
+               scb->hastat = HOST_BAD_PHAS;
+               scb->tastat = 0;
+               initio_append_done_scb(host, scb);
        }
-       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-       return SCSI_RESET_PENDING;
+       initio_stop_bm(host);
+       initio_reset_scsi(host, 8);     /* 7/29/98 */
+       return initio_post_scsi_rst(host);
 }
 
-static int tul_reset_scsi_bus(HCS * pCurHcb)
-{
-       ULONG flags;
-
-       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-       TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x1F);
-       pCurHcb->HCS_Semaph = 0;
-
-       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
-       tul_stop_bm(pCurHcb);
-
-       tul_reset_scsi(pCurHcb, 2);     /* 7/29/98 */
-
-       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-       tul_post_scsi_rst(pCurHcb);
-
-        spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-
-       tulip_main(pCurHcb);
-
-        spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-       pCurHcb->HCS_Semaph = 1;
-       TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
-       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
-       return (SCSI_RESET_SUCCESS | SCSI_RESET_HOST_RESET);
-}
-
-#endif  /*  0  */
 
 /************************************************************************/
-static void tul_exec_scb(HCS * pCurHcb, SCB * pCurScb)
+static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
-       ULONG flags;
+       unsigned long flags;
 
-       pCurScb->SCB_Mode = 0;
+       scb->mode = 0;
 
-       pCurScb->SCB_SGIdx = 0;
-       pCurScb->SCB_SGMax = pCurScb->SCB_SGLen;
+       scb->sgidx = 0;
+       scb->sgmax = scb->sglen;
 
-       spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
+       spin_lock_irqsave(&host->semaph_lock, flags);
 
-       tul_append_pend_scb(pCurHcb, pCurScb);  /* Append this SCB to Pending queue */
+       initio_append_pend_scb(host, scb);      /* 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;
-
-               spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+       if (host->semaph == 1) {
+               /* Disable Jasmin SCSI Int */
+               outb(0x1F, host->addr + TUL_Mask);
+               host->semaph = 0;
+               spin_unlock_irqrestore(&host->semaph_lock, flags);
 
-               tulip_main(pCurHcb);
+               tulip_main(host);
 
-               spin_lock_irqsave(&(pCurHcb->HCS_SemaphLock), flags);
-
-               pCurHcb->HCS_Semaph = 1;
-               TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
+               spin_lock_irqsave(&host->semaph_lock, flags);
+               host->semaph = 1;
+               outb(0x0F, host->addr + TUL_Mask);
        }
-       spin_unlock_irqrestore(&(pCurHcb->HCS_SemaphLock), flags);
+       spin_unlock_irqrestore(&host->semaph_lock, flags);
        return;
 }
 
 /***************************************************************************/
-static int tul_isr(HCS * pCurHcb)
+static int initio_isr(struct initio_host * host)
 {
-       /* 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);
+       if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) {
+               if (host->semaph == 1) {
+                       outb(0x1F, host->addr + TUL_Mask);
                        /* Disable Tulip SCSI Int */
-                       pCurHcb->HCS_Semaph = 0;
+                       host->semaph = 0;
 
-                       tulip_main(pCurHcb);
+                       tulip_main(host);
 
-                       pCurHcb->HCS_Semaph = 1;
-                       TUL_WR(pCurHcb->HCS_Base + TUL_Mask, 0x0F);
-                       return (1);
+                       host->semaph = 1;
+                       outb(0x0F, host->addr + TUL_Mask);
+                       return 1;
                }
        }
-       return (0);
+       return 0;
 }
 
-/***************************************************************************/
-int tulip_main(HCS * pCurHcb)
+static int tulip_main(struct initio_host * host)
 {
-       SCB *pCurScb;
+       struct scsi_ctrl_blk *scb;
 
        for (;;) {
-
-               tulip_scsi(pCurHcb);    /* Call tulip_scsi              */
-
-               while ((pCurScb = tul_find_done_scb(pCurHcb)) != NULL) {        /* find done entry */
-                       if (pCurScb->SCB_TaStat == INI_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);
+               tulip_scsi(host);       /* Call tulip_scsi              */
+
+               /* Walk the list of completed SCBs */
+               while ((scb = initio_find_done_scb(host)) != NULL) {    /* find done entry */
+                       if (scb->tastat == INI_QUEUE_FULL) {
+                               host->max_tags[scb->target] =
+                                   host->act_tags[scb->target] - 1;
+                               scb->tastat = 0;
+                               initio_append_pend_scb(host, scb);
                                continue;
                        }
-                       if (!(pCurScb->SCB_Mode & SCM_RSENS)) {         /* not in auto req. sense mode */
-                               if (pCurScb->SCB_TaStat == 2) {
+                       if (!(scb->mode & SCM_RSENS)) {         /* not in auto req. sense mode */
+                               if (scb->tastat == 2) {
 
                                        /* clr sync. nego flag */
 
-                                       if (pCurScb->SCB_Flags & SCF_SENSE) {
-                                               BYTE len;
-                                               len = pCurScb->SCB_SenseLen;
+                                       if (scb->flags & SCF_SENSE) {
+                                               u8 len;
+                                               len = 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,
+                                               scb->buflen = scb->senselen;
+                                               scb->bufptr = scb->senseptr;
+                                               scb->flags &= ~(SCF_SG | SCF_DIR);      /* for xfer_data_in */
+                                               /* so, we won't report wrong 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);
+                                               scb->mode = SCM_RSENS;
+                                               scb->ident &= 0xBF;     /* Disable Disconnect */
+                                               scb->tagmsg = 0;
+                                               scb->tastat = 0;
+                                               scb->cdblen = 6;
+                                               scb->cdb[0] = SCSICMD_RequestSense;
+                                               scb->cdb[1] = 0;
+                                               scb->cdb[2] = 0;
+                                               scb->cdb[3] = 0;
+                                               scb->cdb[4] = len;
+                                               scb->cdb[5] = 0;
+                                               initio_push_pend_scb(host, scb);
                                                break;
                                        }
                                }
                        } else {        /* in request sense mode */
 
-                               if (pCurScb->SCB_TaStat == 2) {         /* check contition status again after sending
+                               if (scb->tastat == 2) {         /* check contition status again after sending
                                                                           requset sense cmd 0x3 */
-                                       pCurScb->SCB_HaStat = HOST_BAD_PHAS;
+                                       scb->hastat = HOST_BAD_PHAS;
                                }
-                               pCurScb->SCB_TaStat = 2;
+                               scb->tastat = 2;
                        }
-                       pCurScb->SCB_Flags |= SCF_DONE;
-                       if (pCurScb->SCB_Flags & SCF_POST) {
-                               (*pCurScb->SCB_Post) ((BYTE *) pCurHcb, (BYTE *) pCurScb);
+                       scb->flags |= SCF_DONE;
+                       if (scb->flags & SCF_POST) {
+                               /* FIXME: only one post method and lose casts */
+                               (*scb->post) ((u8 *) host, (u8 *) scb);
                        }
                }               /* while */
-
                /* find_active: */
-               if (TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0) & TSS_INT_PENDING)
+               if (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING)
                        continue;
-
-               if (pCurHcb->HCS_ActScb) {      /* return to OS and wait for xfer_done_ISR/Selected_ISR */
+               if (host->active)       /* 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) {
+               if (initio_find_first_pend_scb(host) == NULL)
                        return 1;       /* return to OS, enable interrupt */
-               }
        }                       /* End of for loop */
        /* statement won't reach here */
 }
 
-
-
-
-/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
-/***************************************************************************/
-/***************************************************************************/
-/***************************************************************************/
-/***************************************************************************/
-
-/***************************************************************************/
-void tulip_scsi(HCS * pCurHcb)
+static void tulip_scsi(struct initio_host * host)
 {
-       SCB *pCurScb;
-       TCS *pCurTcb;
+       struct scsi_ctrl_blk *scb;
+       struct target_control *active_tc;
 
        /* 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);
+       if ((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING) {
+               host->phase = host->jsstatus0 & TSS_PH_MASK;
+               host->jsstatus1 = inb(host->addr + TUL_SStatus1);
+               host->jsint = inb(host->addr + TUL_SInt);
+               if (host->jsint & TSS_SCSIRST_INT) {    /* SCSI bus reset detected      */
+                       int_initio_scsi_rst(host);
                        return;
                }
-               if (pCurHcb->HCS_JSInt & TSS_RESEL_INT) {       /* if selected/reselected interrupt */
-                       if (int_tul_resel(pCurHcb) == 0)
-                               tul_next_state(pCurHcb);
+               if (host->jsint & TSS_RESEL_INT) {      /* if selected/reselected interrupt */
+                       if (int_initio_resel(host) == 0)
+                               initio_next_state(host);
                        return;
                }
-               if (pCurHcb->HCS_JSInt & TSS_SEL_TIMEOUT) {
-                       int_tul_busfree(pCurHcb);
+               if (host->jsint & TSS_SEL_TIMEOUT) {
+                       int_initio_busfree(host);
                        return;
                }
-               if (pCurHcb->HCS_JSInt & TSS_DISC_INT) {        /* BUS disconnection            */
-                       int_tul_busfree(pCurHcb);       /* unexpected bus free or sel timeout */
+               if (host->jsint & TSS_DISC_INT) {       /* BUS disconnection            */
+                       int_initio_busfree(host);       /* 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);
+               if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) {     /* func complete or Bus service */
+                       if ((scb = host->active) != NULL)
+                               initio_next_state(host);
                        return;
                }
        }
-       if (pCurHcb->HCS_ActScb != NULL)
+       if (host->active != NULL)
                return;
 
-       if ((pCurScb = tul_find_first_pend_scb(pCurHcb)) == NULL)
+       if ((scb = initio_find_first_pend_scb(host)) == 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];
+       outb((host->scsi_id << 4) | (scb->target & 0x0F),
+               host->addr + TUL_SScsiId);
+       if (scb->opcode == ExecSCSI) {
+               active_tc = &host->targets[scb->target];
 
-               if (pCurScb->SCB_TagMsg)
-                       pCurTcb->TCS_DrvFlags |= TCF_DRV_EN_TAG;
+               if (scb->tagmsg)
+                       active_tc->drv_flags |= TCF_DRV_EN_TAG;
                else
-                       pCurTcb->TCS_DrvFlags &= ~TCF_DRV_EN_TAG;
+                       active_tc->drv_flags &= ~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);
+               outb(active_tc->js_period, host->addr + TUL_SPeriod);
+               if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) {  /* do wdtr negotiation          */
+                       initio_select_atn_stop(host, scb);
                } else {
-                       if ((pCurTcb->TCS_Flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {   /* do sync negotiation          */
-                               tul_select_atn_stop(pCurHcb, pCurScb);
+                       if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {     /* do sync negotiation          */
+                               initio_select_atn_stop(host, scb);
                        } else {
-                               if (pCurScb->SCB_TagMsg)
-                                       tul_select_atn3(pCurHcb, pCurScb);
+                               if (scb->tagmsg)
+                                       initio_select_atn3(host, scb);
                                else
-                                       tul_select_atn(pCurHcb, pCurScb);
+                                       initio_select_atn(host, scb);
                        }
                }
-               if (pCurScb->SCB_Flags & SCF_POLL) {
-                       while (wait_tulip(pCurHcb) != -1) {
-                               if (tul_next_state(pCurHcb) == -1)
+               if (scb->flags & SCF_POLL) {
+                       while (wait_tulip(host) != -1) {
+                               if (initio_next_state(host) == -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)
+       } else if (scb->opcode == BusDevRst) {
+               initio_select_atn_stop(host, scb);
+               scb->next_state = 8;
+               if (scb->flags & SCF_POLL) {
+                       while (wait_tulip(host) != -1) {
+                               if (initio_next_state(host) == -1)
                                        break;
                        }
                }
-       } else if (pCurScb->SCB_Opcode == AbortCmd) {
-               if (tul_abort_srb(pCurHcb, pCurScb->SCB_Srb) != 0) {
-
-
-                       tul_unlink_pend_scb(pCurHcb, pCurScb);
-
-                       tul_release_scb(pCurHcb, pCurScb);
+       } else if (scb->opcode == AbortCmd) {
+               if (initio_abort_srb(host, scb->srb) != 0) {
+                       initio_unlink_pend_scb(host, scb);
+                       initio_release_scb(host, scb);
                } else {
-                       pCurScb->SCB_Opcode = BusDevRst;
-                       tul_select_atn_stop(pCurHcb, pCurScb);
-                       pCurScb->SCB_NxtStat = 8;
+                       scb->opcode = BusDevRst;
+                       initio_select_atn_stop(host, scb);
+                       scb->next_state = 8;
                }
-
-/* 08/03/98 */
        } else {
-               tul_unlink_pend_scb(pCurHcb, pCurScb);
-               pCurScb->SCB_HaStat = 0x16;     /* bad command */
-               tul_append_done_scb(pCurHcb, pCurScb);
+               initio_unlink_pend_scb(host, scb);
+               scb->hastat = 0x16;     /* bad command */
+               initio_append_done_scb(host, scb);
        }
        return;
 }
 
+/**
+ *     initio_next_state               -       Next SCSI state
+ *     @host: InitIO host we are processing
+ *
+ *     Progress the active command block along the state machine
+ *     until we hit a state which we must wait for activity to occur.
+ *
+ *     Returns zero or a negative code.
+ */
 
-/***************************************************************************/
-int tul_next_state(HCS * pCurHcb)
+static int initio_next_state(struct initio_host * host)
 {
        int next;
 
-       next = pCurHcb->HCS_ActScb->SCB_NxtStat;
+       next = host->active->next_state;
        for (;;) {
                switch (next) {
                case 1:
-                       next = tul_state_1(pCurHcb);
+                       next = initio_state_1(host);
                        break;
                case 2:
-                       next = tul_state_2(pCurHcb);
+                       next = initio_state_2(host);
                        break;
                case 3:
-                       next = tul_state_3(pCurHcb);
+                       next = initio_state_3(host);
                        break;
                case 4:
-                       next = tul_state_4(pCurHcb);
+                       next = initio_state_4(host);
                        break;
                case 5:
-                       next = tul_state_5(pCurHcb);
+                       next = initio_state_5(host);
                        break;
                case 6:
-                       next = tul_state_6(pCurHcb);
+                       next = initio_state_6(host);
                        break;
                case 7:
-                       next = tul_state_7(pCurHcb);
+                       next = initio_state_7(host);
                        break;
                case 8:
-                       return (tul_bus_device_reset(pCurHcb));
+                       return initio_bus_device_reset(host);
                default:
-                       return (tul_bad_seq(pCurHcb));
+                       return initio_bad_seq(host);
                }
                if (next <= 0)
                        return next;
@@ -1554,338 +1314,363 @@ int tul_next_state(HCS * pCurHcb)
 }
 
 
-/***************************************************************************/
-/* sTate after selection with attention & stop */
-int tul_state_1(HCS * pCurHcb)
+/**
+ *     initio_state_1          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ *     Perform SCSI state processing for Select/Attention/Stop
+ */
+
+static int initio_state_1(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
 #if DEBUG_STATE
        printk("-s1-");
 #endif
 
-       tul_unlink_pend_scb(pCurHcb, pCurScb);
-       tul_append_busy_scb(pCurHcb, pCurScb);
+       /* Move the SCB from pending to busy */
+       initio_unlink_pend_scb(host, scb);
+       initio_append_busy_scb(host, scb);
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0);
+       outb(active_tc->sconfig0, host->addr + TUL_SConfig );
        /* 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);
-}
-
+       if (host->phase == MSG_OUT) {
+               outb(TSC_EN_BUS_IN | TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
+               outb(scb->ident, host->addr + TUL_SFifo);
+
+               if (scb->tagmsg) {
+                       outb(scb->tagmsg, host->addr + TUL_SFifo);
+                       outb(scb->tagid, host->addr + TUL_SFifo);
+               }
+               if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0) {
+                       active_tc->flags |= TCF_WDTR_DONE;
+                       outb(MSG_EXTEND, host->addr + TUL_SFifo);
+                       outb(2, host->addr + TUL_SFifo);        /* Extended msg length */
+                       outb(3, host->addr + TUL_SFifo);        /* Sync request */
+                       outb(1, host->addr + TUL_SFifo);        /* Start from 16 bits */
+               } else if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0) {
+                       active_tc->flags |= TCF_SYNC_DONE;
+                       outb(MSG_EXTEND, host->addr + TUL_SFifo);
+                       outb(3, host->addr + TUL_SFifo);        /* extended msg length */
+                       outb(1, host->addr + TUL_SFifo);        /* sync request */
+                       outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
+                       outb(MAX_OFFSET, host->addr + TUL_SFifo);       /* REQ/ACK offset */
+               }
+               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
+       }
+       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+       outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal);
+       /* Into before CDB xfer */
+       return 3;
+}
+
+
+/**
+ *     initio_state_2          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ * state after selection with attention
+ * state after selection with attention3
+ */
 
-/***************************************************************************/
-/* state after selection with attention */
-/* state after selection with attention3 */
-int tul_state_2(HCS * pCurHcb)
+static int initio_state_2(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
 #if DEBUG_STATE
        printk("-s2-");
 #endif
 
-       tul_unlink_pend_scb(pCurHcb, pCurScb);
-       tul_append_busy_scb(pCurHcb, pCurScb);
+       initio_unlink_pend_scb(host, scb);
+       initio_append_busy_scb(host, scb);
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SConfig, pCurTcb->TCS_SConfig0);
+       outb(active_tc->sconfig0, host->addr + TUL_SConfig);
 
-       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);
+       if (host->jsstatus1 & TSS_CMD_PH_CMP)
+               return 4;
+
+       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+       outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)), host->addr + TUL_SSignal);
+       /* Into before CDB xfer */
+       return 3;
 }
 
-/***************************************************************************/
-/* state before CDB xfer is done */
-int tul_state_3(HCS * pCurHcb)
+/**
+ *     initio_state_3          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ * state before CDB xfer is done
+ */
+
+static int initio_state_3(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
        int i;
 
 #if DEBUG_STATE
        printk("-s3-");
 #endif
        for (;;) {
-               switch (pCurHcb->HCS_Phase) {
+               switch (host->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);
+                       for (i = 0; i < (int) scb->cdblen; i++)
+                               outb(scb->cdb[i], host->addr + TUL_SFifo);
+                       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                       if (wait_tulip(host) == -1)
+                               return -1;
+                       if (host->phase == CMD_OUT)
+                               return initio_bad_seq(host);
+                       return 4;
 
                case MSG_IN:    /* Message in phase             */
-                       pCurScb->SCB_NxtStat = 3;
-                       if (tul_msgin(pCurHcb) == -1)
-                               return (-1);
+                       scb->next_state = 3;
+                       if (initio_msgin(host) == -1)
+                               return -1;
                        break;
 
                case STATUS_IN: /* Status phase                 */
-                       if (tul_status_msg(pCurHcb) == -1)
-                               return (-1);
+                       if (initio_status_msg(host) == -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);
-
+                       if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) {
+                               outb(MSG_NOP, host->addr + TUL_SFifo);          /* msg nop */
+                               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                               if (wait_tulip(host) == -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));
+                               active_tc->flags |= TCF_SYNC_DONE;
+
+                               outb(MSG_EXTEND, host->addr + TUL_SFifo);
+                               outb(3, host->addr + TUL_SFifo);        /* ext. msg len */
+                               outb(1, host->addr + TUL_SFifo);        /* sync request */
+                               outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
+                               outb(MAX_OFFSET, host->addr + TUL_SFifo);       /* REQ/ACK offset */
+                               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                               if (wait_tulip(host) == -1)
+                                       return -1;
+                               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+                               outb(inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7), host->addr + TUL_SSignal);
 
                        }
                        break;
-
                default:
-                       return (tul_bad_seq(pCurHcb));
+                       return initio_bad_seq(host);
                }
        }
 }
 
+/**
+ *     initio_state_4          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ *     SCSI state machine. State 4
+ */
 
-/***************************************************************************/
-int tul_state_4(HCS * pCurHcb)
+static int initio_state_4(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
 
 #if DEBUG_STATE
        printk("-s4-");
 #endif
-       if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_NO_XF) {
-               return (6);     /* Go to state 6                */
+       if ((scb->flags & SCF_DIR) == SCF_NO_XF) {
+               return 6;       /* Go to state 6 (After data) */
        }
        for (;;) {
-               if (pCurScb->SCB_BufLen == 0)
-                       return (6);     /* Go to state 6                */
+               if (scb->buflen == 0)
+                       return 6;
 
-               switch (pCurHcb->HCS_Phase) {
+               switch (host->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);
+                       if ((scb->flags & SCF_DIR) != 0)        /* if direction bit set then report data underrun */
+                               scb->hastat = HOST_DO_DU;
+                       if ((initio_status_msg(host)) == -1)
+                               return -1;
                        break;
 
                case MSG_IN:    /* Message in phase             */
-                       pCurScb->SCB_NxtStat = 0x4;
-                       if (tul_msgin(pCurHcb) == -1)
-                               return (-1);
+                       scb->next_state = 0x4;
+                       if (initio_msgin(host) == -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                */
+                       if (host->jsstatus0 & TSS_PAR_ERROR) {
+                               scb->buflen = 0;
+                               scb->hastat = HOST_DO_DU;
+                               if (initio_msgout_ide(host) == -1)
+                                       return -1;
+                               return 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);
+                               outb(MSG_NOP, host->addr + TUL_SFifo);          /* msg nop */
+                               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                               if (wait_tulip(host) == -1)
+                                       return -1;
                        }
                        break;
 
                case DATA_IN:   /* Data in phase                */
-                       return (tul_xfer_data_in(pCurHcb));
+                       return initio_xfer_data_in(host);
 
                case DATA_OUT:  /* Data out phase               */
-                       return (tul_xfer_data_out(pCurHcb));
+                       return initio_xfer_data_out(host);
 
                default:
-                       return (tul_bad_seq(pCurHcb));
+                       return initio_bad_seq(host);
                }
        }
 }
 
 
-/***************************************************************************/
-/* state after dma xfer done or phase change before xfer done */
-int tul_state_5(HCS * pCurHcb)
+/**
+ *     initio_state_5          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ *     State after dma xfer done or phase change before xfer done
+ */
+
+static int initio_state_5(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
        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;
+       /*------ get remaining count -------*/
+       cnt = inl(host->addr + TUL_SCnt0) & 0x0FFFFFF;
 
-       if (TUL_RD(pCurHcb->HCS_Base, TUL_XCmd) & 0x20) {
+       if (inb(host->addr + 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  */
+               if (host->jsstatus0 & TSS_PAR_ERROR)
+                       scb->hastat = HOST_DO_DU;
+               if (inb(host->addr + 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);
+                       outb(inb(host->addr + TUL_XCtrl) | 0x80, host->addr + TUL_XCtrl);
                        /* wait until DMA xfer not pending */
-                       while (TUL_RD(pCurHcb->HCS_Base, TUL_XStatus) & XPEND);
+                       while (inb(host->addr + TUL_XStatus) & XPEND)
+                               cpu_relax();
                }
        } 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;
+               /*-------- DATA OUT -----------*/
+               if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0) {
+                       if (host->active_tc->js_period & TSC_WIDE_SCSI)
+                               cnt += (inb(host->addr + TUL_SFifoCnt) & 0x1F) << 1;
                        else
-                               cnt += (TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F);
+                               cnt += (inb(host->addr + 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);
+               if (inb(host->addr + TUL_XStatus) & XPEND) {    /* if DMA xfer is pending, abort DMA xfer */
+                       outb(TAX_X_ABT, host->addr + TUL_XCmd);
                        /* wait Abort DMA xfer done */
-                       while ((TUL_RD(pCurHcb->HCS_Base, TUL_Int) & XABT) == 0);
+                       while ((inb(host->addr + TUL_Int) & XABT) == 0)
+                               cpu_relax();
                }
-               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);
-                       }
+               if ((cnt == 1) && (host->phase == DATA_OUT)) {
+                       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                       if (wait_tulip(host) == -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 ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0)
+                               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
                }
        }
-
        if (cnt == 0) {
-               pCurScb->SCB_BufLen = 0;
-               return (6);     /* Go to state 6                */
+               scb->buflen = 0;
+               return 6;       /* After Data */
        }
        /* 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;
+       xcnt = (long) scb->buflen - cnt;        /* xcnt== bytes already xferred */
+       scb->buflen = (u32) cnt;                /* cnt == bytes left to be xferred */
+       if (scb->flags & SCF_SG) {
+               struct sg_entry *sgp;
+               unsigned long i;
+
+               sgp = &scb->sglist[scb->sgidx];
+               for (i = scb->sgidx; i < scb->sgmax; sgp++, i++) {
+                       xcnt -= (long) sgp->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);
+                               xcnt += (long) sgp->len;        /* xcnt == bytes xferred in this sgp */
+                               sgp->data += (u32) xcnt;        /* new ptr to be xfer */
+                               sgp->len -= (u32) xcnt; /* new len to be xfer */
+                               scb->bufptr += ((u32) (i - scb->sgidx) << 3);
                                /* new SG table ptr */
-                               pCurScb->SCB_SGLen = (BYTE) (pCurScb->SCB_SGMax - i);
+                               scb->sglen = (u8) (scb->sgmax - i);
                                /* new SG table len */
-                               pCurScb->SCB_SGIdx = (WORD) i;
+                               scb->sgidx = (u16) i;
                                /* for next disc and come in this loop */
-                               return (4);     /* Go to state 4                */
+                               return 4;       /* Go to state 4                */
                        }
                        /* else (xcnt >= 0 , i.e. this sgp already xferred */
                }               /* for */
-               return (6);     /* Go to state 6                */
+               return 6;       /* Go to state 6                */
        } else {
-               pCurScb->SCB_BufPtr += (U32) xcnt;
+               scb->bufptr += (u32) xcnt;
        }
-       return (4);             /* Go to state 4                */
+       return 4;               /* Go to state 4                */
 }
 
-/***************************************************************************/
-/* state after Data phase */
-int tul_state_6(HCS * pCurHcb)
+/**
+ *     initio_state_6          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ *     State after Data phase
+ */
+
+static int initio_state_6(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
 
 #if DEBUG_STATE
        printk("-s6-");
 #endif
        for (;;) {
-               switch (pCurHcb->HCS_Phase) {
+               switch (host->phase) {
                case STATUS_IN: /* Status phase                 */
-                       if ((tul_status_msg(pCurHcb)) == -1)
-                               return (-1);
+                       if ((initio_status_msg(host)) == -1)
+                               return -1;
                        break;
 
                case MSG_IN:    /* Message in phase             */
-                       pCurScb->SCB_NxtStat = 6;
-                       if ((tul_msgin(pCurHcb)) == -1)
-                               return (-1);
+                       scb->next_state = 6;
+                       if ((initio_msgin(host)) == -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);
+                       outb(MSG_NOP, host->addr + TUL_SFifo);          /* msg nop */
+                       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                       if (wait_tulip(host) == -1)
+                               return -1;
                        break;
 
                case DATA_IN:   /* Data in phase                */
-                       return (tul_xpad_in(pCurHcb));
+                       return initio_xpad_in(host);
 
                case DATA_OUT:  /* Data out phase               */
-                       return (tul_xpad_out(pCurHcb));
+                       return initio_xpad_out(host);
 
                default:
-                       return (tul_bad_seq(pCurHcb));
+                       return initio_bad_seq(host);
                }
        }
 }
 
-/***************************************************************************/
-int tul_state_7(HCS * pCurHcb)
+/**
+ *     initio_state_7          -       SCSI state machine
+ *     @host: InitIO host we are controlling
+ *
+ */
+
+int initio_state_7(struct initio_host * host)
 {
        int cnt, i;
 
@@ -1893,1139 +1678,1037 @@ int tul_state_7(HCS * pCurHcb)
        printk("-s7-");
 #endif
        /* flush SCSI FIFO */
-       cnt = TUL_RD(pCurHcb->HCS_Base, TUL_SFifoCnt) & 0x1F;
+       cnt = inb(host->addr + TUL_SFifoCnt) & 0x1F;
        if (cnt) {
                for (i = 0; i < cnt; i++)
-                       TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
+                       inb(host->addr + TUL_SFifo);
        }
-       switch (pCurHcb->HCS_Phase) {
+       switch (host->phase) {
        case DATA_IN:           /* Data in phase                */
        case DATA_OUT:          /* Data out phase               */
-               return (tul_bad_seq(pCurHcb));
+               return initio_bad_seq(host);
        default:
-               return (6);     /* Go to state 6                */
+               return 6;       /* Go to state 6                */
        }
 }
 
-/***************************************************************************/
-int tul_xfer_data_in(HCS * pCurHcb)
+/**
+ *     initio_xfer_data_in     -       Commence data input
+ *     @host: InitIO host in use
+ *
+ *     Commence a block of data transfer. The transfer itself will
+ *     be managed by the controller and we will get a completion (or
+ *     failure) interrupt.
+ */
+static int initio_xfer_data_in(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
 
-       if ((pCurScb->SCB_Flags & SCF_DIR) == SCF_DOUT) {
-               return (6);     /* wrong direction */
-       }
-       TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, pCurScb->SCB_BufLen);
+       if ((scb->flags & SCF_DIR) == SCF_DOUT)
+               return 6;       /* wrong direction */
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_DMA_IN);    /* 7/25/95 */
+       outl(scb->buflen, host->addr + TUL_SCnt0);
+       outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd);     /* 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);
+       if (scb->flags & SCF_SG) {      /* S/G xfer */
+               outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH);
+               outl(scb->bufptr, host->addr + TUL_XAddH);
+               outb(TAX_SG_IN, host->addr + TUL_XCmd);
        } 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);
+               outl(scb->buflen, host->addr + TUL_XCntH);
+               outl(scb->bufptr, host->addr + TUL_XAddH);
+               outb(TAX_X_IN, host->addr + TUL_XCmd);
        }
-       pCurScb->SCB_NxtStat = 0x5;
-       return (0);             /* return to OS, wait xfer done , let jas_isr come in */
+       scb->next_state = 0x5;
+       return 0;               /* return to OS, wait xfer done , let jas_isr come in */
 }
 
+/**
+ *     initio_xfer_data_out    -       Commence data output
+ *     @host: InitIO host in use
+ *
+ *     Commence a block of data transfer. The transfer itself will
+ *     be managed by the controller and we will get a completion (or
+ *     failure) interrupt.
+ */
 
-/***************************************************************************/
-int tul_xfer_data_out(HCS * pCurHcb)
+static int initio_xfer_data_out(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
 
-       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 ((scb->flags & SCF_DIR) == SCF_DIN)
+               return 6;       /* wrong direction */
 
-       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);
+       outl(scb->buflen, host->addr + TUL_SCnt0);
+       outb(TSC_XF_DMA_OUT, host->addr + TUL_SCmd);
+
+       if (scb->flags & SCF_SG) {      /* S/G xfer */
+               outl(((u32) scb->sglen) << 3, host->addr + TUL_XCntH);
+               outl(scb->bufptr, host->addr + TUL_XAddH);
+               outb(TAX_SG_OUT, host->addr + TUL_XCmd);
        } 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);
+               outl(scb->buflen, host->addr + TUL_XCntH);
+               outl(scb->bufptr, host->addr + TUL_XAddH);
+               outb(TAX_X_OUT, host->addr + TUL_XCmd);
        }
 
-       pCurScb->SCB_NxtStat = 0x5;
-       return (0);             /* return to OS, wait xfer done , let jas_isr come in */
+       scb->next_state = 0x5;
+       return 0;               /* return to OS, wait xfer done , let jas_isr come in */
 }
 
-
-/***************************************************************************/
-int tul_xpad_in(HCS * pCurHcb)
+int initio_xpad_in(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
 
-       if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) {
-               pCurScb->SCB_HaStat = HOST_DO_DU;       /* over run             */
-       }
+       if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
+               scb->hastat = HOST_DO_DU;       /* over run             */
        for (;;) {
-               if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI)
-                       TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2);
+               if (active_tc->js_period & TSC_WIDE_SCSI)
+                       outl(2, host->addr + TUL_SCnt0);
                else
-                       TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
+                       outl(1, host->addr + TUL_SCnt0);
 
-               TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_IN);
-               if ((wait_tulip(pCurHcb)) == -1) {
-                       return (-1);
+               outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
+               if (host->phase != DATA_IN) {
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+                       return 6;
                }
-               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);
+               inb(host->addr + TUL_SFifo);
        }
 }
 
-int tul_xpad_out(HCS * pCurHcb)
+int initio_xpad_out(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
 
-       if ((pCurScb->SCB_Flags & SCF_DIR) != SCF_NO_DCHK) {
-               pCurScb->SCB_HaStat = HOST_DO_DU;       /* over run             */
-       }
+       if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
+               scb->hastat = HOST_DO_DU;       /* over run             */
        for (;;) {
-               if (pCurTcb->TCS_JS_Period & TSC_WIDE_SCSI)
-                       TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 2);
+               if (active_tc->js_period & TSC_WIDE_SCSI)
+                       outl(2, host->addr + TUL_SCnt0);
                else
-                       TUL_WRLONG(pCurHcb->HCS_Base + TUL_SCnt0, 1);
+                       outl(1, host->addr + TUL_SCnt0);
 
-               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);
+               outb(0, host->addr + TUL_SFifo);
+               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+               if ((wait_tulip(host)) == -1)
+                       return -1;
+               if (host->phase != DATA_OUT) {  /* Disable wide CPU to allow read 16 bits */
+                       outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+                       return 6;
                }
        }
 }
 
-
-/***************************************************************************/
-int tul_status_msg(HCS * pCurHcb)
+int initio_status_msg(struct initio_host * host)
 {                              /* status & MSG_IN */
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       BYTE msg;
+       struct scsi_ctrl_blk *scb = host->active;
+       u8 msg;
+
+       outb(TSC_CMD_COMP, host->addr + TUL_SCmd);
+       if (wait_tulip(host) == -1)
+               return -1;
 
-       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);
+       scb->tastat = inb(host->addr + 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 (host->phase == MSG_OUT) {
+               if (host->jsstatus0 & TSS_PAR_ERROR)
+                       outb(MSG_PARITY, host->addr + TUL_SFifo);
+               else
+                       outb(MSG_NOP, host->addr + TUL_SFifo);
+               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+               return wait_tulip(host);
+       }
+       if (host->phase == MSG_IN) {
+               msg = inb(host->addr + TUL_SFifo);
+               if (host->jsstatus0 & TSS_PAR_ERROR) {  /* Parity error                 */
+                       if ((initio_msgin_accept(host)) == -1)
+                               return -1;
+                       if (host->phase != MSG_OUT)
+                               return initio_bad_seq(host);
+                       outb(MSG_PARITY, host->addr + TUL_SFifo);
+                       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+                       return wait_tulip(host);
                }
                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 ((scb->tastat & 0x18) == 0x10)       /* No link support              */
+                               return initio_bad_seq(host);
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+                       outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
+                       return initio_wait_done_disc(host);
 
                }
-               if ((msg == MSG_LINK_COMP) || (msg == MSG_LINK_FLAG)) {
-                       if ((pCurScb->SCB_TaStat & 0x18) == 0x10)
-                               return (tul_msgin_accept(pCurHcb));
+               if (msg == MSG_LINK_COMP || msg == MSG_LINK_FLAG) {
+                       if ((scb->tastat & 0x18) == 0x10)
+                               return initio_msgin_accept(host);
                }
        }
-       return (tul_bad_seq(pCurHcb));
+       return initio_bad_seq(host);
 }
 
 
-/***************************************************************************/
 /* scsi bus free */
-int int_tul_busfree(HCS * pCurHcb)
+int int_initio_busfree(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
+       struct scsi_ctrl_blk *scb = host->active;
 
-       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);
+       if (scb != NULL) {
+               if (scb->status & SCB_SELECT) {         /* selection timeout */
+                       initio_unlink_pend_scb(host, scb);
+                       scb->hastat = HOST_SEL_TOUT;
+                       initio_append_done_scb(host, scb);
                } else {        /* Unexpected bus free          */
-                       tul_unlink_busy_scb(pCurHcb, pCurScb);
-                       pCurScb->SCB_HaStat = HOST_BUS_FREE;
-                       tul_append_done_scb(pCurHcb, pCurScb);
+                       initio_unlink_busy_scb(host, scb);
+                       scb->hastat = HOST_BUS_FREE;
+                       initio_append_done_scb(host, scb);
                }
-               pCurHcb->HCS_ActScb = NULL;
-               pCurHcb->HCS_ActTcs = NULL;
+               host->active = NULL;
+               host->active_tc = 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);
+       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);          /* Flush SCSI FIFO  */
+       outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
+       outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect       */
+       return -1;
 }
 
 
-/***************************************************************************/
-/* scsi bus reset */
-static int int_tul_scsi_rst(HCS * pCurHcb)
+/**
+ *     int_initio_scsi_rst     -       SCSI reset occurred
+ *     @host: Host seeing the reset
+ *
+ *     A SCSI bus reset has occurred. Clean up any pending transfer
+ *     the hardware is doing by DMA and then abort all active and
+ *     disconnected commands. The mid layer should sort the rest out
+ *     for us
+ */
+
+static int int_initio_scsi_rst(struct initio_host * host)
 {
-       SCB *pCurScb;
+       struct scsi_ctrl_blk *scb;
        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);
+       if (inb(host->addr + TUL_XStatus) & 0x01) {
+               outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
                /* 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);
+               while ((inb(host->addr + TUL_Int) & 0x04) == 0)
+                       cpu_relax();
+               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
        }
        /* 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);
+       while ((scb = initio_pop_busy_scb(host)) != NULL) {
+               scb->hastat = HOST_BAD_PHAS;
+               initio_append_done_scb(host, scb);
        }
-       pCurHcb->HCS_ActScb = NULL;
-       pCurHcb->HCS_ActTcs = NULL;
+       host->active = NULL;
+       host->active_tc = 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);
+       for (i = 0; i < host->max_tar; i++)
+               host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
+       return -1;
 }
 
+/**
+ *     int_initio_scsi_resel   -       Reselection occured
+ *     @host: InitIO host adapter
+ *
+ *     A SCSI reselection event has been signalled and the interrupt
+ *     is now being processed. Work out which command block needs attention
+ *     and continue processing that command.
+ */
 
-/***************************************************************************/
-/* scsi reselection */
-int int_tul_resel(HCS * pCurHcb)
+int int_initio_resel(struct initio_host * host)
 {
-       SCB *pCurScb;
-       TCS *pCurTcb;
-       BYTE tag, msg = 0;
-       BYTE tar, lun;
+       struct scsi_ctrl_blk *scb;
+       struct target_control *active_tc;
+       u8 tag, msg = 0;
+       u8 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;
+       if ((scb = host->active) != NULL) {
+               /* FIXME: Why check and not just clear ? */
+               if (scb->status & SCB_SELECT)           /* if waiting for selection complete */
+                       scb->status &= ~SCB_SELECT;
+               host->active = NULL;
        }
        /* --------- get target id---------------------- */
-       tar = TUL_RD(pCurHcb->HCS_Base, TUL_SBusId);
+       tar = inb(host->addr + TUL_SBusId);
        /* ------ get LUN from Identify message----------- */
-       lun = TUL_RD(pCurHcb->HCS_Base, TUL_SIdent) & 0x0F;
+       lun = inb(host->addr + 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);
-
+       active_tc = &host->targets[tar];
+       host->active_tc = active_tc;
+       outb(active_tc->sconfig0, host->addr + TUL_SConfig);
+       outb(active_tc->js_period, host->addr + TUL_SPeriod);
 
        /* ------------- tag queueing ? ------------------- */
-       if (pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG) {
-               if ((tul_msgin_accept(pCurHcb)) == -1)
-                       return (-1);
-               if (pCurHcb->HCS_Phase != MSG_IN)
+       if (active_tc->drv_flags & TCF_DRV_EN_TAG) {
+               if ((initio_msgin_accept(host)) == -1)
+                       return -1;
+               if (host->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    */
+               outl(1, host->addr + TUL_SCnt0);
+               outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
+               msg = inb(host->addr + TUL_SFifo);      /* Read Tag Message    */
 
-               if ((msg < MSG_STAG) || (msg > MSG_OTAG))       /* Is simple Tag      */
+               if (msg < MSG_STAG || msg > MSG_OTAG)           /* Is simple Tag      */
                        goto no_tag;
 
-               if ((tul_msgin_accept(pCurHcb)) == -1)
-                       return (-1);
+               if (initio_msgin_accept(host) == -1)
+                       return -1;
 
-               if (pCurHcb->HCS_Phase != MSG_IN)
+               if (host->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);
+               outl(1, host->addr + TUL_SCnt0);
+               outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
+               tag = inb(host->addr + TUL_SFifo);      /* Read Tag ID       */
+               scb = host->scb + tag;
+               if (scb->target != tar || scb->lun != lun) {
+                       return initio_msgout_abort_tag(host);
+               }
+               if (scb->status != SCB_BUSY) {  /* 03/24/95             */
+                       return initio_msgout_abort_tag(host);
+               }
+               host->active = scb;
+               if ((initio_msgin_accept(host)) == -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);
+               if ((scb = initio_find_busy_scb(host, tar | (lun << 8))) == NULL) {
+                       return initio_msgout_abort_targ(host);
                }
-               pCurHcb->HCS_ActScb = pCurScb;
-               if (!(pCurTcb->TCS_DrvFlags & TCF_DRV_EN_TAG)) {
-                       if ((tul_msgin_accept(pCurHcb)) == -1)
-                               return (-1);
+               host->active = scb;
+               if (!(active_tc->drv_flags & TCF_DRV_EN_TAG)) {
+                       if ((initio_msgin_accept(host)) == -1)
+                               return -1;
                }
        }
        return 0;
 }
 
+/**
+ *     int_initio_bad_seq              -       out of phase
+ *     @host: InitIO host flagging event
+ *
+ *     We have ended up out of phase somehow. Reset the host controller
+ *     and throw all our toys out of the pram. Let the midlayer clean up
+ */
 
-/***************************************************************************/
-static int int_tul_bad_seq(HCS * pCurHcb)
+static int int_initio_bad_seq(struct initio_host * host)
 {                              /* target wrong phase           */
-       SCB *pCurScb;
+       struct scsi_ctrl_blk *scb;
        int i;
 
-       tul_reset_scsi(pCurHcb, 10);
+       initio_reset_scsi(host, 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);
+       while ((scb = initio_pop_busy_scb(host)) != NULL) {
+               scb->hastat = HOST_BAD_PHAS;
+               initio_append_done_scb(host, scb);
        }
-       return (-1);
+       for (i = 0; i < host->max_tar; i++)
+               host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
+       return -1;
 }
 
 
-/***************************************************************************/
-int tul_msgout_abort_targ(HCS * pCurHcb)
+/**
+ *     initio_msgout_abort_targ                -       abort a tag
+ *     @host: InitIO host
+ *
+ *     Abort when the target/lun does not match or when our SCB is not
+ *     busy. Used by untagged commands.
+ */
+
+static int initio_msgout_abort_targ(struct initio_host * host)
 {
 
-       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));
+       outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
+       if (initio_msgin_accept(host) == -1)
+               return -1;
+       if (host->phase != MSG_OUT)
+               return initio_bad_seq(host);
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT);
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
+       outb(MSG_ABORT, host->addr + TUL_SFifo);
+       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
 
-       return tul_wait_disc(pCurHcb);
+       return initio_wait_disc(host);
 }
 
-/***************************************************************************/
-int tul_msgout_abort_tag(HCS * pCurHcb)
+/**
+ *     initio_msgout_abort_tag         -       abort a tag
+ *     @host: InitIO host
+ *
+ *     Abort when the target/lun does not match or when our SCB is not
+ *     busy. Used for tagged commands.
+ */
+
+static int initio_msgout_abort_tag(struct initio_host * host)
 {
 
-       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));
+       outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
+       if (initio_msgin_accept(host) == -1)
+               return -1;
+       if (host->phase != MSG_OUT)
+               return initio_bad_seq(host);
 
-       TUL_WR(pCurHcb->HCS_Base + TUL_SFifo, MSG_ABORT_TAG);
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_XF_FIFO_OUT);
+       outb(MSG_ABORT_TAG, host->addr + TUL_SFifo);
+       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
 
-       return tul_wait_disc(pCurHcb);
+       return initio_wait_disc(host);
 
 }
 
-/***************************************************************************/
-int tul_msgin(HCS * pCurHcb)
+/**
+ *     initio_msgin            -       Message in
+ *     @host: InitIO Host
+ *
+ *     Process incoming message
+ */
+static int initio_msgin(struct initio_host * host)
 {
-       TCS *pCurTcb;
+       struct target_control *active_tc;
 
        for (;;) {
+               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
 
-               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);
+               outl(1, host->addr + TUL_SCnt0);
+               outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
 
-               switch (TUL_RD(pCurHcb->HCS_Base, TUL_SFifo)) {
+               switch (inb(host->addr + TUL_SFifo)) {
                case MSG_DISC:  /* Disconnect msg */
-                       TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);
-
-                       return tul_wait_disc(pCurHcb);
-
+                       outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
+                       return initio_wait_disc(host);
                case MSG_SDP:
                case MSG_RESTORE:
                case MSG_NOP:
-                       tul_msgin_accept(pCurHcb);
+                       initio_msgin_accept(host);
                        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);
+                       outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)),
+                               host->addr + TUL_SSignal);
+                       active_tc = host->active_tc;
+                       if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0)       /* do sync nego */
+                               outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN),
+                                       host->addr + TUL_SSignal);
+                       initio_msgin_accept(host);
                        break;
-
                case MSG_EXTEND:        /* extended msg */
-                       tul_msgin_extend(pCurHcb);
+                       initio_msgin_extend(host);
                        break;
-
                case MSG_IGNOREWIDE:
-                       tul_msgin_accept(pCurHcb);
+                       initio_msgin_accept(host);
                        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);
-                       }
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
+                       outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
+                       return initio_wait_done_disc(host);
                default:
-                       tul_msgout_reject(pCurHcb);
+                       initio_msgout_reject(host);
                        break;
                }
-               if (pCurHcb->HCS_Phase != MSG_IN)
-                       return (pCurHcb->HCS_Phase);
+               if (host->phase != MSG_IN)
+                       return host->phase;
        }
        /* statement won't reach here */
 }
 
-
-
-
-/***************************************************************************/
-int tul_msgout_reject(HCS * pCurHcb)
+static int initio_msgout_reject(struct initio_host * host)
 {
+       outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
 
-       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 (initio_msgin_accept(host) == -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));
+       if (host->phase == MSG_OUT) {
+               outb(MSG_REJ, host->addr + TUL_SFifo);          /* Msg reject           */
+               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+               return wait_tulip(host);
        }
-       return (pCurHcb->HCS_Phase);
+       return host->phase;
 }
 
-
-
-/***************************************************************************/
-int tul_msgout_ide(HCS * pCurHcb)
+static int initio_msgout_ide(struct initio_host * host)
 {
-       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));
+       outb(MSG_IDE, host->addr + TUL_SFifo);          /* Initiator Detected Error */
+       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+       return wait_tulip(host);
 }
 
-
-/***************************************************************************/
-int tul_msgin_extend(HCS * pCurHcb)
+static int initio_msgin_extend(struct initio_host * host)
 {
-       BYTE len, idx;
+       u8 len, idx;
 
-       if (tul_msgin_accept(pCurHcb) != MSG_IN)
-               return (pCurHcb->HCS_Phase);
+       if (initio_msgin_accept(host) != MSG_IN)
+               return host->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);
+       outl(1, host->addr + TUL_SCnt0);
+       outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+       if (wait_tulip(host) == -1)
+               return -1;
 
-       len = TUL_RD(pCurHcb->HCS_Base, TUL_SFifo);
-       pCurHcb->HCS_Msg[0] = len;
+       len = inb(host->addr + TUL_SFifo);
+       host->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;
+               if ((initio_msgin_accept(host)) != MSG_IN)
+                       return host->phase;
+               outl(1, host->addr + TUL_SCnt0);
+               outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
+               if (wait_tulip(host) == -1)
+                       return -1;
+               host->msg[idx++] = inb(host->addr + TUL_SFifo);
+       }
+       if (host->msg[1] == 1) {                /* if it's synchronous data transfer request */
+               u8 r;
+               if (host->msg[0] != 3)  /* if length is not right */
+                       return initio_msgout_reject(host);
+               if (host->active_tc->flags & TCF_NO_SYNC_NEGO) {        /* Set OFFSET=0 to do async, nego back */
+                       host->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));
+                       if (initio_msgin_sync(host) == 0 &&
+                           (host->active_tc->flags & TCF_SYNC_DONE)) {
+                               initio_sync_done(host);
+                               return initio_msgin_accept(host);
                        }
                }
 
-               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);
+               r = inb(host->addr + TUL_SSignal);
+               outb((r & (TSC_SET_ACK | 7)) | TSC_SET_ATN,
+                       host->addr + TUL_SSignal);
+               if (initio_msgin_accept(host) != MSG_OUT)
+                       return host->phase;
                /* sync msg out */
-               TUL_WR(pCurHcb->HCS_Base + TUL_SCtrl0, TSC_FLUSH_FIFO);
+               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
 
-               tul_sync_done(pCurHcb);
+               initio_sync_done(host);
 
-               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));
+               outb(MSG_EXTEND, host->addr + TUL_SFifo);
+               outb(3, host->addr + TUL_SFifo);
+               outb(1, host->addr + TUL_SFifo);
+               outb(host->msg[2], host->addr + TUL_SFifo);
+               outb(host->msg[3], host->addr + TUL_SFifo);
+               outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+               return wait_tulip(host);
        }
-       if ((pCurHcb->HCS_Msg[0] != 2) || (pCurHcb->HCS_Msg[1] != 3))
-               return (tul_msgout_reject(pCurHcb));
+       if (host->msg[0] != 2 || host->msg[1] != 3)
+               return initio_msgout_reject(host);
        /* if it's WIDE DATA XFER REQ   */
-       if (pCurHcb->HCS_ActTcs->TCS_Flags & TCF_NO_WDTR) {
-               pCurHcb->HCS_Msg[2] = 0;
+       if (host->active_tc->flags & TCF_NO_WDTR) {
+               host->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;
+               if (host->msg[2] > 2)   /* > 32 bits            */
+                       return initio_msgout_reject(host);
+               if (host->msg[2] == 2) {                /* == 32                */
+                       host->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));
+                       if ((host->active_tc->flags & TCF_NO_WDTR) == 0) {
+                               wdtr_done(host);
+                               if ((host->active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0)
+                                       outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
+                               return initio_msgin_accept(host);
                        }
                }
        }
-       TUL_WR(pCurHcb->HCS_Base + TUL_SSignal, ((TUL_RD(pCurHcb->HCS_Base, TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN));
+       outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7)) | TSC_SET_ATN), host->addr + TUL_SSignal);
 
-       if (tul_msgin_accept(pCurHcb) != MSG_OUT)
-               return (pCurHcb->HCS_Phase);
+       if (initio_msgin_accept(host) != MSG_OUT)
+               return host->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));
+       outb(MSG_EXTEND, host->addr + TUL_SFifo);
+       outb(2, host->addr + TUL_SFifo);
+       outb(3, host->addr + TUL_SFifo);
+       outb(host->msg[2], host->addr + TUL_SFifo);
+       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+       return wait_tulip(host);
 }
 
-/***************************************************************************/
-int tul_msgin_sync(HCS * pCurHcb)
+static int initio_msgin_sync(struct initio_host * host)
 {
        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;
+       default_period = initio_rate_tbl[host->active_tc->flags & TCF_SCSI_RATE];
+       if (host->msg[3] > MAX_OFFSET) {
+               host->msg[3] = MAX_OFFSET;
+               if (host->msg[2] < default_period) {
+                       host->msg[2] = default_period;
                        return 1;
                }
-               if (pCurHcb->HCS_Msg[2] >= 59) {        /* Change to async              */
-                       pCurHcb->HCS_Msg[3] = 0;
-               }
+               if (host->msg[2] >= 59) /* Change to async              */
+                       host->msg[3] = 0;
                return 1;
        }
        /* offset requests asynchronous transfers ? */
-       if (pCurHcb->HCS_Msg[3] == 0) {
+       if (host->msg[3] == 0) {
                return 0;
        }
-       if (pCurHcb->HCS_Msg[2] < default_period) {
-               pCurHcb->HCS_Msg[2] = default_period;
+       if (host->msg[2] < default_period) {
+               host->msg[2] = default_period;
                return 1;
        }
-       if (pCurHcb->HCS_Msg[2] >= 59) {
-               pCurHcb->HCS_Msg[3] = 0;
+       if (host->msg[2] >= 59) {
+               host->msg[3] = 0;
                return 1;
        }
        return 0;
 }
 
-
-/***************************************************************************/
-int wdtr_done(HCS * pCurHcb)
+static int wdtr_done(struct initio_host * host)
 {
-       pCurHcb->HCS_ActTcs->TCS_Flags &= ~TCF_SYNC_DONE;
-       pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_WDTR_DONE;
+       host->active_tc->flags &= ~TCF_SYNC_DONE;
+       host->active_tc->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);
+       host->active_tc->js_period = 0;
+       if (host->msg[2])       /* if 16 bit */
+               host->active_tc->js_period |= TSC_WIDE_SCSI;
+       host->active_tc->sconfig0 &= ~TSC_ALT_PERIOD;
+       outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
+       outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
 
        return 1;
 }
 
-/***************************************************************************/
-int tul_sync_done(HCS * pCurHcb)
+static int initio_sync_done(struct initio_host * host)
 {
        int i;
 
-       pCurHcb->HCS_ActTcs->TCS_Flags |= TCF_SYNC_DONE;
+       host->active_tc->flags |= TCF_SYNC_DONE;
 
-       if (pCurHcb->HCS_Msg[3]) {
-               pCurHcb->HCS_ActTcs->TCS_JS_Period |= pCurHcb->HCS_Msg[3];
+       if (host->msg[3]) {
+               host->active_tc->js_period |= host->msg[3];
                for (i = 0; i < 8; i++) {
-                       if (tul_rate_tbl[i] >= pCurHcb->HCS_Msg[2])     /* pick the big one */
+                       if (initio_rate_tbl[i] >= host->msg[2]) /* pick the big one */
                                break;
                }
-               pCurHcb->HCS_ActTcs->TCS_JS_Period |= (i << 4);
-               pCurHcb->HCS_ActTcs->TCS_SConfig0 |= TSC_ALT_PERIOD;
+               host->active_tc->js_period |= (i << 4);
+               host->active_tc->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);
+       outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
+       outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
 
-       return (-1);
+       return -1;
 }
 
 
-int tul_post_scsi_rst(HCS * pCurHcb)
+static int initio_post_scsi_rst(struct initio_host * host)
 {
-       SCB *pCurScb;
-       TCS *pCurTcb;
+       struct scsi_ctrl_blk *scb;
+       struct target_control *active_tc;
        int i;
 
-       pCurHcb->HCS_ActScb = NULL;
-       pCurHcb->HCS_ActTcs = NULL;
-       pCurHcb->HCS_Flags = 0;
+       host->active = NULL;
+       host->active_tc = NULL;
+       host->flags = 0;
 
-       while ((pCurScb = tul_pop_busy_scb(pCurHcb)) != NULL) {
-               pCurScb->SCB_HaStat = HOST_BAD_PHAS;
-               tul_append_done_scb(pCurHcb, pCurScb);
+       while ((scb = initio_pop_busy_scb(host)) != NULL) {
+               scb->hastat = HOST_BAD_PHAS;
+               initio_append_done_scb(host, scb);
        }
        /* 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);
+       active_tc = &host->targets[0];
+       for (i = 0; i < host->max_tar; active_tc++, i++) {
+               active_tc->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 */
+               active_tc->js_period = 0;
+               active_tc->sconfig0 = host->sconf1;
+               host->act_tags[0] = 0;  /* 07/22/98 */
+               host->targets[i].flags &= ~TCF_BUSY;    /* 07/22/98 */
        }                       /* for */
 
-       return (-1);
+       return -1;
 }
 
-/***************************************************************************/
-void tul_select_atn_stop(HCS * pCurHcb, SCB * pCurScb)
+static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
-       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;
+       scb->status |= SCB_SELECT;
+       scb->next_state = 0x1;
+       host->active = scb;
+       host->active_tc = &host->targets[scb->target];
+       outb(TSC_SELATNSTOP, host->addr + TUL_SCmd);
 }
 
 
-/***************************************************************************/
-void tul_select_atn(HCS * pCurHcb, SCB * pCurScb)
+static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
        int i;
 
-       pCurScb->SCB_Status |= SCB_SELECT;
-       pCurScb->SCB_NxtStat = 0x2;
+       scb->status |= SCB_SELECT;
+       scb->next_state = 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;
+       outb(scb->ident, host->addr + TUL_SFifo);
+       for (i = 0; i < (int) scb->cdblen; i++)
+               outb(scb->cdb[i], host->addr + TUL_SFifo);
+       host->active_tc = &host->targets[scb->target];
+       host->active = scb;
+       outb(TSC_SEL_ATN, host->addr + TUL_SCmd);
 }
 
-/***************************************************************************/
-void tul_select_atn3(HCS * pCurHcb, SCB * pCurScb)
+static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb)
 {
        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;
+       scb->status |= SCB_SELECT;
+       scb->next_state = 0x2;
+
+       outb(scb->ident, host->addr + TUL_SFifo);
+       outb(scb->tagmsg, host->addr + TUL_SFifo);
+       outb(scb->tagid, host->addr + TUL_SFifo);
+       for (i = 0; i < scb->cdblen; i++)
+               outb(scb->cdb[i], host->addr + TUL_SFifo);
+       host->active_tc = &host->targets[scb->target];
+       host->active = scb;
+       outb(TSC_SEL_ATN3, host->addr + TUL_SCmd);
 }
 
-/***************************************************************************/
-/* SCSI Bus Device Reset */
-int tul_bus_device_reset(HCS * pCurHcb)
+/**
+ *     initio_bus_device_reset -        SCSI Bus Device Reset
+ *     @host: InitIO host to reset
+ *
+ *     Perform a device reset and abort all pending SCBs for the
+ *     victim device
+ */
+int initio_bus_device_reset(struct initio_host * host)
 {
-       SCB *pCurScb = pCurHcb->HCS_ActScb;
-       TCS *pCurTcb = pCurHcb->HCS_ActTcs;
-       SCB *pTmpScb, *pPrevScb;
-       BYTE tar;
+       struct scsi_ctrl_blk *scb = host->active;
+       struct target_control *active_tc = host->active_tc;
+       struct scsi_ctrl_blk *tmp, *prev;
+       u8 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);
+       if (host->phase != MSG_OUT)
+               return int_initio_bad_seq(host);        /* Unexpected phase */
+
+       initio_unlink_pend_scb(host, scb);
+       initio_release_scb(host, scb);
 
 
-       tar = pCurScb->SCB_Target;      /* target                       */
-       pCurTcb->TCS_Flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY);
+       tar = scb->target;      /* target                       */
+       active_tc->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) {
+       prev = tmp = host->first_busy;  /* Check Busy queue */
+       while (tmp != NULL) {
+               if (tmp->target == tar) {
                        /* unlink it */
-                       if (pTmpScb == pCurHcb->HCS_FirstBusy) {
-                               if ((pCurHcb->HCS_FirstBusy = pTmpScb->SCB_NxtScb) == NULL)
-                                       pCurHcb->HCS_LastBusy = NULL;
+                       if (tmp == host->first_busy) {
+                               if ((host->first_busy = tmp->next) == NULL)
+                                       host->last_busy = NULL;
                        } else {
-                               pPrevScb->SCB_NxtScb = pTmpScb->SCB_NxtScb;
-                               if (pTmpScb == pCurHcb->HCS_LastBusy)
-                                       pCurHcb->HCS_LastBusy = pPrevScb;
+                               prev->next = tmp->next;
+                               if (tmp == host->last_busy)
+                                       host->last_busy = prev;
                        }
-                       pTmpScb->SCB_HaStat = HOST_ABORTED;
-                       tul_append_done_scb(pCurHcb, pTmpScb);
+                       tmp->hastat = HOST_ABORTED;
+                       initio_append_done_scb(host, tmp);
                }
                /* Previous haven't change      */
                else {
-                       pPrevScb = pTmpScb;
+                       prev = tmp;
                }
-               pTmpScb = pTmpScb->SCB_NxtScb;
+               tmp = tmp->next;
        }
-
-       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);
+       outb(MSG_DEVRST, host->addr + TUL_SFifo);
+       outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
+       return initio_wait_disc(host);
 
 }
 
-/***************************************************************************/
-int tul_msgin_accept(HCS * pCurHcb)
+static int initio_msgin_accept(struct initio_host * host)
 {
-       TUL_WR(pCurHcb->HCS_Base + TUL_SCmd, TSC_MSG_ACCEPT);
-       return (wait_tulip(pCurHcb));
+       outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
+       return wait_tulip(host);
 }
 
-/***************************************************************************/
-int wait_tulip(HCS * pCurHcb)
+static int wait_tulip(struct initio_host * host)
 {
 
-       while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0))
-                & TSS_INT_PENDING));
+       while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
+                & TSS_INT_PENDING))
+                       cpu_relax();
 
-       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);
+       host->jsint = inb(host->addr + TUL_SInt);
+       host->phase = host->jsstatus0 & TSS_PH_MASK;
+       host->jsstatus1 = inb(host->addr + 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 (host->jsint & TSS_RESEL_INT)        /* if SCSI bus reset detected */
+               return int_initio_resel(host);
+       if (host->jsint & TSS_SEL_TIMEOUT)      /* if selected/reselected timeout interrupt */
+               return int_initio_busfree(host);
+       if (host->jsint & TSS_SCSIRST_INT)      /* if SCSI bus reset detected   */
+               return int_initio_scsi_rst(host);
+
+       if (host->jsint & TSS_DISC_INT) {       /* BUS disconnection            */
+               if (host->flags & HCF_EXPECT_DONE_DISC) {
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
+                       initio_unlink_busy_scb(host, host->active);
+                       host->active->hastat = 0;
+                       initio_append_done_scb(host, host->active);
+                       host->active = NULL;
+                       host->active_tc = NULL;
+                       host->flags &= ~HCF_EXPECT_DONE_DISC;
+                       outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
+                       outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* 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);
+               if (host->flags & HCF_EXPECT_DISC) {
+                       outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
+                       host->active = NULL;
+                       host->active_tc = NULL;
+                       host->flags &= ~HCF_EXPECT_DISC;
+                       outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
+                       outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* 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 int_initio_busfree(host);
        }
-       return (pCurHcb->HCS_Phase);
+       /* The old code really does the below. Can probably be removed */
+       if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV))
+               return host->phase;
+       return host->phase;
 }
-/***************************************************************************/
-int tul_wait_disc(HCS * pCurHcb)
-{
-
-       while (!((pCurHcb->HCS_JSStatus0 = TUL_RD(pCurHcb->HCS_Base, TUL_SStatus0))
-                & TSS_INT_PENDING));
 
+static int initio_wait_disc(struct initio_host * host)
+{
+       while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING))
+               cpu_relax();
 
-       pCurHcb->HCS_JSInt = TUL_RD(pCurHcb->HCS_Base, TUL_SInt);
+       host->jsint = inb(host->addr + 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);
+       if (host->jsint & TSS_SCSIRST_INT)      /* if SCSI bus reset detected */
+               return int_initio_scsi_rst(host);
+       if (host->jsint & TSS_DISC_INT) {       /* BUS disconnection */
+               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
+               outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
+               outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
+               host->active = NULL;
+               return -1;
        }
-       return (tul_bad_seq(pCurHcb));
+       return initio_bad_seq(host);
 }
 
-/***************************************************************************/
-int tul_wait_done_disc(HCS * pCurHcb)
+static int initio_wait_done_disc(struct initio_host * host)
 {
+       while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
+                & TSS_INT_PENDING))
+                cpu_relax();
 
+       host->jsint = inb(host->addr + TUL_SInt);
 
-       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);
+       if (host->jsint & TSS_SCSIRST_INT)      /* if SCSI bus reset detected */
+               return int_initio_scsi_rst(host);
+       if (host->jsint & TSS_DISC_INT) {       /* BUS disconnection */
+               outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);          /* Flush SCSI FIFO */
+               outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
+               outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);         /* Enable HW reselect */
+               initio_unlink_busy_scb(host, host->active);
 
-               tul_append_done_scb(pCurHcb, pCurHcb->HCS_ActScb);
-               pCurHcb->HCS_ActScb = NULL;
-               return (-1);
+               initio_append_done_scb(host, host->active);
+               host->active = NULL;
+               return -1;
        }
-       return (tul_bad_seq(pCurHcb));
+       return initio_bad_seq(host);
 }
 
+/**
+ *     i91u_intr               -       IRQ handler
+ *     @irqno: IRQ number
+ *     @dev_id: IRQ identifier
+ *
+ *     Take the relevant locks and then invoke the actual isr processing
+ *     code under the lock.
+ */
+
 static irqreturn_t i91u_intr(int irqno, void *dev_id)
 {
        struct Scsi_Host *dev = dev_id;
        unsigned long flags;
+       int r;
        
        spin_lock_irqsave(dev->host_lock, flags);
-       tul_isr((HCS *)dev->base);
+       r = initio_isr((struct initio_host *)dev->hostdata);
        spin_unlock_irqrestore(dev->host_lock, flags);
-       return IRQ_HANDLED;
-}
-
-static int tul_NewReturnNumberOfAdapters(void)
-{
-       struct pci_dev *pDev = NULL;    /* Start from none              */
-       int iAdapters = 0;
-       long dRegValue;
-       WORD wBIOS;
-       int i = 0;
-
-       init_i91uAdapter_table();
-
-       for (i = 0; i < ARRAY_SIZE(i91u_pci_devices); i++)
-       {
-               while ((pDev = pci_find_device(i91u_pci_devices[i].vendor, i91u_pci_devices[i].device, pDev)) != NULL) {
-                       if (pci_enable_device(pDev))
-                               continue;
-                       pci_read_config_dword(pDev, 0x44, (u32 *) & dRegValue);
-                       wBIOS = (UWORD) (dRegValue & 0xFF);
-                       if (((dRegValue & 0xFF00) >> 8) == 0xFF)
-                               dRegValue = 0;
-                       wBIOS = (wBIOS << 8) + ((UWORD) ((dRegValue & 0xFF00) >> 8));
-                       if (pci_set_dma_mask(pDev, DMA_32BIT_MASK)) {
-                               printk(KERN_WARNING 
-                                      "i91u: Could not set 32 bit DMA mask\n");
-                               continue;
-                       }
-
-                       if (Addi91u_into_Adapter_table(wBIOS,
-                                                       (pDev->resource[0].start),
-                                                       pDev->irq,
-                                                       pDev->bus->number,
-                                                       (pDev->devfn >> 3)
-                               ) == 0)
-                               iAdapters++;
-               }
-       }
-
-       return (iAdapters);
+       if (r)
+               return IRQ_HANDLED;
+       else
+               return IRQ_NONE;
 }
 
-static int i91u_detect(struct scsi_host_template * tpnt)
-{
-       HCS *pHCB;
-       struct Scsi_Host *hreg;
-       unsigned long i;        /* 01/14/98                     */
-       int ok = 0, iAdapters;
-       ULONG dBiosAdr;
-       BYTE *pbBiosAdr;
-
-       /* Get total number of adapters in the motherboard */
-       iAdapters = tul_NewReturnNumberOfAdapters();
-       if (iAdapters == 0)     /* If no tulip founded, return */
-               return (0);
-
-       tul_num_ch = (iAdapters > tul_num_ch) ? tul_num_ch : iAdapters;
-       /* Update actually channel number */
-       if (tul_tag_enable) {   /* 1.01i                  */
-               tul_num_scb = MAX_TARGETS * i91u_MAXQUEUE;
-       } else {
-               tul_num_scb = MAX_TARGETS + 3;  /* 1-tape, 1-CD_ROM, 1- extra */
-       }                       /* Update actually SCBs per adapter */
-
-       /* Get total memory needed for HCS */
-       i = tul_num_ch * sizeof(HCS);
-       memset((unsigned char *) &tul_hcs[0], 0, i);    /* Initialize tul_hcs 0 */
-       /* Get total memory needed for SCB */
-
-       for (; tul_num_scb >= MAX_TARGETS + 3; tul_num_scb--) {
-               i = tul_num_ch * tul_num_scb * sizeof(SCB);
-               if ((tul_scb = kmalloc(i, GFP_ATOMIC | GFP_DMA)) != NULL)
-                       break;
-       }
-       if (tul_scb == NULL) {
-               printk("i91u: SCB memory allocation error\n");
-               return (0);
-       }
-       memset((unsigned char *) tul_scb, 0, i);
 
-       for (i = 0, pHCB = &tul_hcs[0];         /* Get pointer for control block */
-            i < tul_num_ch;
-            i++, pHCB++) {
-               get_tulipPCIConfig(pHCB, i);
-
-               dBiosAdr = pHCB->HCS_BIOS;
-               dBiosAdr = (dBiosAdr << 4);
-
-               pbBiosAdr = phys_to_virt(dBiosAdr);
-
-               init_tulip(pHCB, tul_scb + (i * tul_num_scb), tul_num_scb, pbBiosAdr, 10);
-               request_region(pHCB->HCS_Base, 256, "i91u"); /* Register */ 
-
-               pHCB->HCS_Index = i;    /* 7/29/98 */
-               hreg = scsi_register(tpnt, sizeof(HCS));
-               if(hreg == NULL) {
-                       release_region(pHCB->HCS_Base, 256);
-                       return 0;
-               }
-               hreg->io_port = pHCB->HCS_Base;
-               hreg->n_io_port = 0xff;
-               hreg->can_queue = tul_num_scb;  /* 03/05/98                      */
-               hreg->unique_id = pHCB->HCS_Base;
-               hreg->max_id = pHCB->HCS_MaxTar;
-               hreg->max_lun = 32;     /* 10/21/97                     */
-               hreg->irq = pHCB->HCS_Intr;
-               hreg->this_id = pHCB->HCS_SCSI_ID;      /* Assign HCS index           */
-               hreg->base = (unsigned long)pHCB;
-               hreg->sg_tablesize = TOTAL_SG_ENTRY;    /* Maximun support is 32 */
-
-               /* Initial tulip chip           */
-               ok = request_irq(pHCB->HCS_Intr, i91u_intr, IRQF_DISABLED | IRQF_SHARED, "i91u", hreg);
-               if (ok < 0) {
-                       printk(KERN_WARNING "i91u: unable to request IRQ %d\n\n", pHCB->HCS_Intr);
-                       return 0;
-               }
-       }
-
-       tpnt->this_id = -1;
-       tpnt->can_queue = 1;
-
-       return 1;
-}
+/**
+ *     initio_build_scb                -       Build the mappings and SCB
+ *     @host: InitIO host taking the command
+ *     @cblk: Firmware command block
+ *     @cmnd: SCSI midlayer command block
+ *
+ *     Translate the abstract SCSI command into a firmware command block
+ *     suitable for feeding to the InitIO host controller. This also requires
+ *     we build the scatter gather lists and ensure they are mapped properly.
+ */
 
-static void i91uBuildSCB(HCS * pHCB, SCB * pSCB, struct scsi_cmnd * SCpnt)
+static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd)
 {                              /* Create corresponding SCB     */
-       struct scatterlist *pSrbSG;
-       SG *pSG;                /* Pointer to SG list           */
+       struct scatterlist *sglist;
+       struct sg_entry *sg;            /* Pointer to SG list           */
        int i;
-       long TotalLen;
+       long total_len;
        dma_addr_t dma_addr;
 
-       pSCB->SCB_Post = i91uSCBPost;   /* i91u's callback routine      */
-       pSCB->SCB_Srb = SCpnt;
-       pSCB->SCB_Opcode = ExecSCSI;
-       pSCB->SCB_Flags = SCF_POST;     /* After SCSI done, call post routine */
-       pSCB->SCB_Target = SCpnt->device->id;
-       pSCB->SCB_Lun = SCpnt->device->lun;
-       pSCB->SCB_Ident = SCpnt->device->lun | DISC_ALLOW;
-
-       pSCB->SCB_Flags |= SCF_SENSE;   /* Turn on auto request sense   */
-       dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->sense_buffer,
-                                 SENSE_SIZE, DMA_FROM_DEVICE);
-       pSCB->SCB_SensePtr = cpu_to_le32((u32)dma_addr);
-       pSCB->SCB_SenseLen = cpu_to_le32(SENSE_SIZE);
-       SCpnt->SCp.ptr = (char *)(unsigned long)dma_addr;
+       /* Fill in the command headers */
+       cblk->post = i91uSCBPost;       /* i91u's callback routine      */
+       cblk->srb = cmnd;
+       cblk->opcode = ExecSCSI;
+       cblk->flags = SCF_POST; /* After SCSI done, call post routine */
+       cblk->target = cmnd->device->id;
+       cblk->lun = cmnd->device->lun;
+       cblk->ident = cmnd->device->lun | DISC_ALLOW;
 
-       pSCB->SCB_CDBLen = SCpnt->cmd_len;
-       pSCB->SCB_HaStat = 0;
-       pSCB->SCB_TaStat = 0;
-       memcpy(&pSCB->SCB_CDB[0], &SCpnt->cmnd, SCpnt->cmd_len);
+       cblk->flags |= SCF_SENSE;       /* Turn on auto request sense   */
 
-       if (SCpnt->device->tagged_supported) {  /* Tag Support                  */
-               pSCB->SCB_TagMsg = SIMPLE_QUEUE_TAG;    /* Do simple tag only   */
+       /* Map the sense buffer into bus memory */
+       dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->sense_buffer,
+                                 SENSE_SIZE, DMA_FROM_DEVICE);
+       cblk->senseptr = cpu_to_le32((u32)dma_addr);
+       cblk->senselen = cpu_to_le32(SENSE_SIZE);
+       cmnd->SCp.ptr = (char *)(unsigned long)dma_addr;
+       cblk->cdblen = cmnd->cmd_len;
+
+       /* Clear the returned status */
+       cblk->hastat = 0;
+       cblk->tastat = 0;
+       /* Command the command */
+       memcpy(&cblk->cdb[0], &cmnd->cmnd, cmnd->cmd_len);
+
+       /* Set up tags */
+       if (cmnd->device->tagged_supported) {   /* Tag Support                  */
+               cblk->tagmsg = SIMPLE_QUEUE_TAG;        /* Do simple tag only   */
        } else {
-               pSCB->SCB_TagMsg = 0;   /* No tag support               */
+               cblk->tagmsg = 0;       /* No tag support               */
        }
+
        /* todo handle map_sg error */
-       if (SCpnt->use_sg) {
-               dma_addr = dma_map_single(&pHCB->pci_dev->dev, &pSCB->SCB_SGList[0],
-                                         sizeof(struct SG_Struc) * TOTAL_SG_ENTRY,
+       if (cmnd->use_sg) {
+               dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0],
+                                         sizeof(struct sg_entry) * TOTAL_SG_ENTRY,
                                          DMA_BIDIRECTIONAL);
-               pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr);
-               SCpnt->SCp.dma_handle = dma_addr;
-
-               pSrbSG = (struct scatterlist *) SCpnt->request_buffer;
-               pSCB->SCB_SGLen = dma_map_sg(&pHCB->pci_dev->dev, pSrbSG,
-                                            SCpnt->use_sg, SCpnt->sc_data_direction);
-
-               pSCB->SCB_Flags |= SCF_SG;      /* Turn on SG list flag       */
-               for (i = 0, TotalLen = 0, pSG = &pSCB->SCB_SGList[0];   /* 1.01g */
-                    i < pSCB->SCB_SGLen; i++, pSG++, pSrbSG++) {
-                       pSG->SG_Ptr = cpu_to_le32((u32)sg_dma_address(pSrbSG));
-                       TotalLen += pSG->SG_Len = cpu_to_le32((u32)sg_dma_len(pSrbSG));
-               }
-
-               pSCB->SCB_BufLen = (SCpnt->request_bufflen > TotalLen) ?
-                   TotalLen : SCpnt->request_bufflen;
-       } else if (SCpnt->request_bufflen) {            /* Non SG */
-               dma_addr = dma_map_single(&pHCB->pci_dev->dev, SCpnt->request_buffer,
-                                         SCpnt->request_bufflen,
-                                         SCpnt->sc_data_direction);
-               SCpnt->SCp.dma_handle = dma_addr;
-               pSCB->SCB_BufPtr = cpu_to_le32((u32)dma_addr);
-               pSCB->SCB_BufLen = cpu_to_le32((u32)SCpnt->request_bufflen);
-               pSCB->SCB_SGLen = 0;
-       } else {
-               pSCB->SCB_BufLen = 0;
-               pSCB->SCB_SGLen = 0;
-       }
-}
+               cblk->bufptr = cpu_to_le32((u32)dma_addr);
+               cmnd->SCp.dma_handle = dma_addr;
+
+               sglist = (struct scatterlist *) cmnd->request_buffer;
+               cblk->sglen = dma_map_sg(&host->pci_dev->dev, sglist,
+                                            cmnd->use_sg, cmnd->sc_data_direction);
+
+               cblk->flags |= SCF_SG;  /* Turn on SG list flag       */
+               for (i = 0, total_len = 0, sg = &cblk->sglist[0];       /* 1.01g */
+                    i < cblk->sglen; i++, sg++, sglist++) {
+                       sg->data = cpu_to_le32((u32)sg_dma_address(sglist));
+                       total_len += sg->len = cpu_to_le32((u32)sg_dma_len(sglist));
+               }
+
+               cblk->buflen = (cmnd->request_bufflen > total_len) ?
+                   total_len : cmnd->request_bufflen;
+       } else if (cmnd->request_bufflen) {             /* Non SG */
+               dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->request_buffer,
+                                         cmnd->request_bufflen,
+                                         cmnd->sc_data_direction);
+               cmnd->SCp.dma_handle = dma_addr;
+               cblk->bufptr = cpu_to_le32((u32)dma_addr);
+               cblk->buflen = cpu_to_le32((u32)cmnd->request_bufflen);
+               cblk->sglen = 0;
+       } else {        /* No data transfer required */
+               cblk->buflen = 0;
+               cblk->sglen = 0;
+       }
+}
+
+/**
+ *     i91u_queuecommand       -       Queue a new command if possible
+ *     @cmd: SCSI command block from the mid layer
+ *     @done: Completion handler
+ *
+ *     Attempts to queue a new command with the host adapter. Will return
+ *     zero if successful or indicate a host busy condition if not (which
+ *     will cause the mid layer to call us again later with the command)
+ */
 
 static int i91u_queuecommand(struct scsi_cmnd *cmd,
                void (*done)(struct scsi_cmnd *))
 {
-       HCS *pHCB = (HCS *) cmd->device->host->base;
-       register SCB *pSCB;
+       struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata;
+       struct scsi_ctrl_blk *cmnd;
 
        cmd->scsi_done = done;
 
-       pSCB = tul_alloc_scb(pHCB);
-       if (!pSCB)
+       cmnd = initio_alloc_scb(host);
+       if (!cmnd)
                return SCSI_MLQUEUE_HOST_BUSY;
 
-       i91uBuildSCB(pHCB, pSCB, cmd);
-       tul_exec_scb(pHCB, pSCB);
+       initio_build_scb(host, cmnd, cmd);
+       initio_exec_scb(host, cmnd);
        return 0;
 }
 
-#if 0 /* no new EH yet */
-/*
- *  Abort a queued command
- *  (commands that are on the bus can't be aborted easily)
- */
-static int i91u_abort(struct scsi_cmnd * SCpnt)
-{
-       HCS *pHCB;
-
-       pHCB = (HCS *) SCpnt->device->host->base;
-       return tul_abort_srb(pHCB, SCpnt);
-}
-
-/*
- *  Reset registers, reset a hanging bus and
- *  kill active and disconnected commands for target w/o soft reset
+/**
+ *     i91u_bus_reset          -       reset the SCSI bus
+ *     @cmnd: Command block we want to trigger the reset for
+ *
+ *     Initiate a SCSI bus reset sequence
  */
-static int i91u_reset(struct scsi_cmnd * SCpnt, unsigned int reset_flags)
-{                              /* I need Host Control Block Information */
-       HCS *pHCB;
 
-       pHCB = (HCS *) SCpnt->device->host->base;
-
-       if (reset_flags & (SCSI_RESET_SUGGEST_BUS_RESET | SCSI_RESET_SUGGEST_HOST_RESET))
-               return tul_reset_scsi_bus(pHCB);
-       else
-               return tul_device_reset(pHCB, SCpnt, SCpnt->device->id, reset_flags);
-}
-#endif
-
-static int i91u_bus_reset(struct scsi_cmnd * SCpnt)
+static int i91u_bus_reset(struct scsi_cmnd * cmnd)
 {
-       HCS *pHCB;
+       struct initio_host *host;
 
-       pHCB = (HCS *) SCpnt->device->host->base;
+       host = (struct initio_host *) cmnd->device->host->hostdata;
 
-       spin_lock_irq(SCpnt->device->host->host_lock);
-       tul_reset_scsi(pHCB, 0);
-       spin_unlock_irq(SCpnt->device->host->host_lock);
+       spin_lock_irq(cmnd->device->host->host_lock);
+       initio_reset_scsi(host, 0);
+       spin_unlock_irq(cmnd->device->host->host_lock);
 
        return SUCCESS;
 }
 
-/*
- * Return the "logical geometry"
+/**
+ *     i91u_biospararm                 -       return the "logical geometry
+ *     @sdev: SCSI device
+ *     @dev; Matching block device
+ *     @capacity: Sector size of drive
+ *     @info_array: Return space for BIOS geometry
+ *
+ *     Map the device geometry in a manner compatible with the host
+ *     controller BIOS behaviour.
+ *
+ *     FIXME: limited to 2^32 sector devices.
  */
+
 static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev,
                sector_t capacity, int *info_array)
 {
-       HCS *pHcb;              /* Point to Host adapter control block */
-       TCS *pTcb;
+       struct initio_host *host;               /* Point to Host adapter control block */
+       struct target_control *tc;
 
-       pHcb = (HCS *) sdev->host->base;
-       pTcb = &pHcb->HCS_Tcs[sdev->id];
+       host = (struct initio_host *) sdev->host->hostdata;
+       tc = &host->targets[sdev->id];
 
-       if (pTcb->TCS_DrvHead) {
-               info_array[0] = pTcb->TCS_DrvHead;
-               info_array[1] = pTcb->TCS_DrvSector;
-               info_array[2] = (unsigned long)capacity / pTcb->TCS_DrvHead / pTcb->TCS_DrvSector;
+       if (tc->heads) {
+               info_array[0] = tc->heads;
+               info_array[1] = tc->sectors;
+               info_array[2] = (unsigned long)capacity / tc->heads / tc->sectors;
        } else {
-               if (pTcb->TCS_DrvFlags & TCF_DRV_255_63) {
+               if (tc->drv_flags & TCF_DRV_255_63) {
                        info_array[0] = 255;
                        info_array[1] = 63;
                        info_array[2] = (unsigned long)capacity / 255 / 63;
@@ -3047,7 +2730,16 @@ static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev,
        return 0;
 }
 
-static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
+/**
+ *     i91u_unmap_scb          -       Unmap a command
+ *     @pci_dev: PCI device the command is for
+ *     @cmnd: The command itself
+ *
+ *     Unmap any PCI mapping/IOMMU resources allocated when the command
+ *     was mapped originally as part of initio_build_scb
+ */
+
+static void i91u_unmap_scb(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
 {
        /* auto sense buffer */
        if (cmnd->SCp.ptr) {
@@ -3060,7 +2752,7 @@ static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
        /* request buffer */
        if (cmnd->use_sg) {
                dma_unmap_single(&pci_dev->dev, cmnd->SCp.dma_handle,
-                                sizeof(struct SG_Struc) * TOTAL_SG_ENTRY,
+                                sizeof(struct sg_entry) * TOTAL_SG_ENTRY,
                                 DMA_BIDIRECTIONAL);
 
                dma_unmap_sg(&pci_dev->dev, cmnd->request_buffer,
@@ -3073,50 +2765,54 @@ static void i91u_unmap_cmnd(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
        }
 }
 
-/*****************************************************************************
- Function name  : i91uSCBPost
- Description    : This is callback routine be called when tulip finish one
-                       SCSI command.
- Input          : pHCB  -       Pointer to host adapter control block.
-                 pSCB  -       Pointer to SCSI control block.
- Output         : None.
- Return         : None.
-*****************************************************************************/
-static void i91uSCBPost(BYTE * pHcb, BYTE * pScb)
-{
-       struct scsi_cmnd *pSRB; /* Pointer to SCSI request block */
-       HCS *pHCB;
-       SCB *pSCB;
+/**
+ *     i91uSCBPost             -       SCSI callback
+ *     @host: Pointer to host adapter control block.
+ *     @cmnd: Pointer to SCSI control block.
+ *
+ *     This is callback routine be called when tulip finish one
+ *     SCSI command.
+ */
 
-       pHCB = (HCS *) pHcb;
-       pSCB = (SCB *) pScb;
-       if ((pSRB = pSCB->SCB_Srb) == 0) {
-               printk("i91uSCBPost: SRB pointer is empty\n");
+static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem)
+{
+       struct scsi_cmnd *cmnd; /* Pointer to SCSI request block */
+       struct initio_host *host;
+       struct scsi_ctrl_blk *cblk;
 
-               tul_release_scb(pHCB, pSCB);    /* Release SCB for current channel */
+       host = (struct initio_host *) host_mem;
+       cblk = (struct scsi_ctrl_blk *) cblk_mem;
+       if ((cmnd = cblk->srb) == NULL) {
+               printk(KERN_ERR "i91uSCBPost: SRB pointer is empty\n");
+               WARN_ON(1);
+               initio_release_scb(host, cblk); /* Release SCB for current channel */
                return;
        }
-       switch (pSCB->SCB_HaStat) {
+
+       /*
+        *      Remap the firmware error status into a mid layer one
+        */
+       switch (cblk->hastat) {
        case 0x0:
        case 0xa:               /* Linked command complete without error and linked normally */
        case 0xb:               /* Linked command complete without error interrupt generated */
-               pSCB->SCB_HaStat = 0;
+               cblk->hastat = 0;
                break;
 
        case 0x11:              /* Selection time out-The initiator selection or target
                                   reselection was not complete within the SCSI Time out period */
-               pSCB->SCB_HaStat = DID_TIME_OUT;
+               cblk->hastat = DID_TIME_OUT;
                break;
 
        case 0x14:              /* Target bus phase sequence failure-An invalid bus phase or bus
                                   phase sequence was requested by the target. The host adapter
                                   will generate a SCSI Reset Condition, notifying the host with
                                   a SCRD interrupt */
-               pSCB->SCB_HaStat = DID_RESET;
+               cblk->hastat = DID_RESET;
                break;
 
        case 0x1a:              /* SCB Aborted. 07/21/98 */
-               pSCB->SCB_HaStat = DID_ABORT;
+               cblk->hastat = DID_ABORT;
                break;
 
        case 0x12:              /* Data overrun/underrun-The target attempted to transfer more data
@@ -3126,49 +2822,196 @@ static void i91uSCBPost(BYTE * pHcb, BYTE * pScb)
        case 0x16:              /* Invalid SCB Operation Code. */
 
        default:
-               printk("ini9100u: %x %x\n", pSCB->SCB_HaStat, pSCB->SCB_TaStat);
-               pSCB->SCB_HaStat = DID_ERROR;   /* Couldn't find any better */
+               printk("ini9100u: %x %x\n", cblk->hastat, cblk->tastat);
+               cblk->hastat = DID_ERROR;       /* Couldn't find any better */
                break;
        }
 
-       pSRB->result = pSCB->SCB_TaStat | (pSCB->SCB_HaStat << 16);
+       cmnd->result = cblk->tastat | (cblk->hastat << 16);
+       WARN_ON(cmnd == NULL);
+       i91u_unmap_scb(host->pci_dev, cmnd);
+       cmnd->scsi_done(cmnd);  /* Notify system DONE           */
+       initio_release_scb(host, cblk); /* Release SCB for current channel */
+}
+
+static struct scsi_host_template initio_template = {
+       .proc_name              = "INI9100U",
+       .name                   = "Initio INI-9X00U/UW SCSI device driver",
+       .queuecommand           = i91u_queuecommand,
+       .eh_bus_reset_handler   = i91u_bus_reset,
+       .bios_param             = i91u_biosparam,
+       .can_queue              = MAX_TARGETS * i91u_MAXQUEUE,
+       .this_id                = 1,
+       .sg_tablesize           = SG_ALL,
+       .cmd_per_lun            = 1,
+       .use_clustering         = ENABLE_CLUSTERING,
+};
+
+static int initio_probe_one(struct pci_dev *pdev,
+       const struct pci_device_id *id)
+{
+       struct Scsi_Host *shost;
+       struct initio_host *host;
+       u32 reg;
+       u16 bios_seg;
+       struct scsi_ctrl_blk *scb, *tmp, *prev = NULL /* silence gcc */;
+       int num_scb, i, error;
+
+       error = pci_enable_device(pdev);
+       if (error)
+               return error;
+
+       pci_read_config_dword(pdev, 0x44, (u32 *) & reg);
+       bios_seg = (u16) (reg & 0xFF);
+       if (((reg & 0xFF00) >> 8) == 0xFF)
+               reg = 0;
+       bios_seg = (bios_seg << 8) + ((u16) ((reg & 0xFF00) >> 8));
+
+       if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+               printk(KERN_WARNING  "i91u: Could not set 32 bit DMA mask\n");
+               error = -ENODEV;
+               goto out_disable_device;
+       }
+       shost = scsi_host_alloc(&initio_template, sizeof(struct initio_host));
+       if (!shost) {
+               printk(KERN_WARNING "initio: Could not allocate host structure.\n");
+               error = -ENOMEM;
+               goto out_disable_device;
+       }
+       host = (struct initio_host *)shost->hostdata;
+       memset(host, 0, sizeof(struct initio_host));
 
-       if (pSRB == NULL) {
-               printk("pSRB is NULL\n");
+       if (!request_region(host->addr, 256, "i91u")) {
+               printk(KERN_WARNING "initio: I/O port range 0x%x is busy.\n", host->addr);
+               error = -ENODEV;
+               goto out_host_put;
        }
 
-       i91u_unmap_cmnd(pHCB->pci_dev, pSRB);
-       pSRB->scsi_done(pSRB);  /* Notify system DONE           */
+       if (initio_tag_enable)  /* 1.01i */
+               num_scb = MAX_TARGETS * i91u_MAXQUEUE;
+       else
+               num_scb = MAX_TARGETS + 3;      /* 1-tape, 1-CD_ROM, 1- extra */
 
-       tul_release_scb(pHCB, pSCB);    /* Release SCB for current channel */
-}
+       for (; num_scb >= MAX_TARGETS + 3; num_scb--) {
+               i = num_scb * sizeof(struct scsi_ctrl_blk);
+               if ((scb = kzalloc(i, GFP_DMA)) != NULL)
+                       break;
+       }
+
+       if (!scb) {
+               printk(KERN_WARNING "initio: Cannot allocate SCB array.\n");
+               error = -ENOMEM;
+               goto out_release_region;
+       }
 
-/*
- * Release ressources
+       host->num_scbs = num_scb;
+       host->scb = scb;
+       host->next_pending = scb;
+       host->next_avail = scb;
+       for (i = 0, tmp = scb; i < num_scb; i++, tmp++) {
+               tmp->tagid = i;
+               if (i != 0)
+                       prev->next = tmp;
+               prev = tmp;
+       }
+       prev->next = NULL;
+       host->scb_end = tmp;
+       host->first_avail = scb;
+       host->last_avail = prev;
+
+       initio_init(host, phys_to_virt(bios_seg << 4));
+
+       host->jsstatus0 = 0;
+
+       shost->io_port = host->addr;
+       shost->n_io_port = 0xff;
+       shost->can_queue = num_scb;             /* 03/05/98                      */
+       shost->unique_id = host->addr;
+       shost->max_id = host->max_tar;
+       shost->max_lun = 32;    /* 10/21/97                     */
+       shost->irq = pdev->irq;
+       shost->this_id = host->scsi_id; /* Assign HCS index           */
+       shost->base = host->addr;
+       shost->sg_tablesize = TOTAL_SG_ENTRY;
+
+       error = request_irq(pdev->irq, i91u_intr, IRQF_DISABLED|IRQF_SHARED, "i91u", shost);
+       if (error < 0) {
+               printk(KERN_WARNING "initio: Unable to request IRQ %d\n", pdev->irq);
+               goto out_free_scbs;
+       }
+
+       pci_set_drvdata(pdev, shost);
+       host->pci_dev = pdev;
+
+       error = scsi_add_host(shost, &pdev->dev);
+       if (error)
+               goto out_free_irq;
+       scsi_scan_host(shost);
+       return 0;
+out_free_irq:
+       free_irq(pdev->irq, shost);
+out_free_scbs:
+       kfree(host->scb);
+out_release_region:
+       release_region(host->addr, 256);
+out_host_put:
+       scsi_host_put(shost);
+out_disable_device:
+       pci_disable_device(pdev);
+       return error;
+}
+
+/**
+ *     initio_remove_one       -       control shutdown
+ *     @pdev:  PCI device being released
+ *
+ *     Release the resources assigned to this adapter after it has
+ *     finished being used.
  */
-static int i91u_release(struct Scsi_Host *hreg)
+
+static void initio_remove_one(struct pci_dev *pdev)
 {
-       free_irq(hreg->irq, hreg);
-       release_region(hreg->io_port, 256);
-       return 0;
+       struct Scsi_Host *host = pci_get_drvdata(pdev);
+       struct initio_host *s = (struct initio_host *)host->hostdata;
+       scsi_remove_host(host);
+       free_irq(pdev->irq, host);
+       release_region(s->addr, 256);
+       scsi_host_put(host);
+       pci_disable_device(pdev);
 }
-MODULE_LICENSE("Dual BSD/GPL");
-
-static struct scsi_host_template driver_template = {
-       .proc_name      = "INI9100U",
-       .name           = i91u_REVID,
-       .detect         = i91u_detect,
-       .release        = i91u_release,
-       .queuecommand   = i91u_queuecommand,
-//     .abort          = i91u_abort,
-//     .reset          = i91u_reset,
-       .eh_bus_reset_handler = i91u_bus_reset,
-       .bios_param     = i91u_biosparam,
-       .can_queue      = 1,
-       .this_id        = 1,
-       .sg_tablesize   = SG_ALL,
-       .cmd_per_lun    = 1,
-       .use_clustering = ENABLE_CLUSTERING,
+
+MODULE_LICENSE("GPL");
+
+static struct pci_device_id initio_pci_tbl[] = {
+       {PCI_VENDOR_ID_INIT, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+       {PCI_VENDOR_ID_INIT, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+       {PCI_VENDOR_ID_INIT, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+       {PCI_VENDOR_ID_INIT, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+       {PCI_VENDOR_ID_DOMEX, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+       {0,}
+};
+MODULE_DEVICE_TABLE(pci, initio_pci_tbl);
+
+static struct pci_driver initio_pci_driver = {
+       .name           = "initio",
+       .id_table       = initio_pci_tbl,
+       .probe          = initio_probe_one,
+       .remove         = __devexit_p(initio_remove_one),
 };
-#include "scsi_module.c"
 
+static int __init initio_init_driver(void)
+{
+       return pci_register_driver(&initio_pci_driver);
+}
+
+static void __exit initio_exit_driver(void)
+{
+       pci_unregister_driver(&initio_pci_driver);
+}
+
+MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver");
+MODULE_AUTHOR("Initio Corporation");
+MODULE_LICENSE("GPL");
+
+module_init(initio_init_driver);
+module_exit(initio_exit_driver);
index acb67a4af2cce0ad5bab6b4262580176bd539fb2..cb48efa81fe2dae50a468ddc3e8fe5f4337eaf14 100644 (file)
@@ -4,6 +4,8 @@
  * Copyright (c) 1994-1998 Initio Corporation
  * All rights reserved.
  *
+ * Cleanups (c) Copyright 2007 Red Hat <alan@redhat.com>
+ *
  * 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)
  * 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
 
 #include <linux/types.h>
 
-#define ULONG   unsigned long
-#define USHORT  unsigned short
-#define UCHAR   unsigned char
-#define BYTE    unsigned char
-#define WORD    unsigned short
-#define DWORD   unsigned long
-#define UBYTE   unsigned char
-#define UWORD   unsigned short
-#define UDWORD  unsigned long
-#define U32     u32
-
 #define TOTAL_SG_ENTRY         32
 #define MAX_SUPPORTED_ADAPTERS  8
 #define MAX_OFFSET             15
@@ -368,55 +338,55 @@ typedef struct {
 /************************************************************************/
 /*              Scatter-Gather Element Structure                        */
 /************************************************************************/
-typedef struct SG_Struc {
-       U32 SG_Ptr;             /* Data Pointer */
-       U32 SG_Len;             /* Data Length */
-} SG;
+struct sg_entry {
+       u32 data;               /* Data Pointer */
+       u32 len;                /* Data Length */
+};
 
 /***********************************************************************
                SCSI Control Block
 ************************************************************************/
-typedef struct Scsi_Ctrl_Blk {
-       struct Scsi_Ctrl_Blk *SCB_NxtScb;
-       UBYTE SCB_Status;       /*4 */
-       UBYTE SCB_NxtStat;      /*5 */
-       UBYTE SCB_Mode;         /*6 */
-       UBYTE SCB_Msgin;        /*7 SCB_Res0 */
-       UWORD SCB_SGIdx;        /*8 */
-       UWORD SCB_SGMax;        /*A */
+struct scsi_ctrl_blk {
+       struct scsi_ctrl_blk *next;
+       u8 status;      /*4 */
+       u8 next_state;  /*5 */
+       u8 mode;                /*6 */
+       u8 msgin;       /*7 SCB_Res0 */
+       u16 sgidx;      /*8 */
+       u16 sgmax;      /*A */
 #ifdef ALPHA
-       U32 SCB_Reserved[2];    /*C */
+       u32 reserved[2];        /*C */
 #else
-       U32 SCB_Reserved[3];    /*C */
+       u32 reserved[3];        /*C */
 #endif
 
-       U32 SCB_XferLen;        /*18 Current xfer len           */
-       U32 SCB_TotXLen;        /*1C Total xfer len             */
-       U32 SCB_PAddr;          /*20 SCB phy. Addr. */
-
-       UBYTE SCB_Opcode;       /*24 SCB command code */
-       UBYTE SCB_Flags;        /*25 SCB Flags */
-       UBYTE SCB_Target;       /*26 Target Id */
-       UBYTE SCB_Lun;          /*27 Lun */
-       U32 SCB_BufPtr;         /*28 Data Buffer Pointer */
-       U32 SCB_BufLen;         /*2C Data Allocation Length */
-       UBYTE SCB_SGLen;        /*30 SG list # */
-       UBYTE SCB_SenseLen;     /*31 Sense Allocation Length */
-       UBYTE SCB_HaStat;       /*32 */
-       UBYTE SCB_TaStat;       /*33 */
-       UBYTE SCB_CDBLen;       /*34 CDB Length */
-       UBYTE SCB_Ident;        /*35 Identify */
-       UBYTE SCB_TagMsg;       /*36 Tag Message */
-       UBYTE SCB_TagId;        /*37 Queue Tag */
-       UBYTE SCB_CDB[12];      /*38 */
-       U32 SCB_SGPAddr;        /*44 SG List/Sense Buf phy. Addr. */
-       U32 SCB_SensePtr;       /*48 Sense data pointer */
-       void (*SCB_Post) (BYTE *, BYTE *);      /*4C POST routine */
-       struct scsi_cmnd *SCB_Srb;      /*50 SRB Pointer */
-       SG SCB_SGList[TOTAL_SG_ENTRY];  /*54 Start of SG list */
-} SCB;
-
-/* Bit Definition for SCB_Status */
+       u32 xferlen;    /*18 Current xfer len           */
+       u32 totxlen;    /*1C Total xfer len             */
+       u32 paddr;              /*20 SCB phy. Addr. */
+
+       u8 opcode;      /*24 SCB command code */
+       u8 flags;       /*25 SCB Flags */
+       u8 target;      /*26 Target Id */
+       u8 lun;         /*27 Lun */
+       u32 bufptr;             /*28 Data Buffer Pointer */
+       u32 buflen;             /*2C Data Allocation Length */
+       u8 sglen;       /*30 SG list # */
+       u8 senselen;    /*31 Sense Allocation Length */
+       u8 hastat;      /*32 */
+       u8 tastat;      /*33 */
+       u8 cdblen;      /*34 CDB Length */
+       u8 ident;       /*35 Identify */
+       u8 tagmsg;      /*36 Tag Message */
+       u8 tagid;       /*37 Queue Tag */
+       u8 cdb[12];     /*38 */
+       u32 sgpaddr;    /*44 SG List/Sense Buf phy. Addr. */
+       u32 senseptr;   /*48 Sense data pointer */
+       void (*post) (u8 *, u8 *);      /*4C POST routine */
+       struct scsi_cmnd *srb;  /*50 SRB Pointer */
+       struct sg_entry sglist[TOTAL_SG_ENTRY]; /*54 Start of SG list */
+};
+
+/* Bit Definition for status */
 #define SCB_RENT        0x01
 #define SCB_PEND        0x02
 #define SCB_CONTIG      0x04   /* Contigent Allegiance */
@@ -425,17 +395,17 @@ typedef struct Scsi_Ctrl_Blk {
 #define SCB_DONE        0x20
 
 
-/* Opcodes of SCB_Opcode */
+/* Opcodes for opcode */
 #define ExecSCSI        0x1
 #define BusDevRst       0x2
 #define AbortCmd        0x3
 
 
-/* Bit Definition for SCB_Mode */
+/* Bit Definition for mode */
 #define SCM_RSENS       0x01   /* request sense mode */
 
 
-/* Bit Definition for SCB_Flags */
+/* Bit Definition for flags */
 #define SCF_DONE        0x01
 #define SCF_POST        0x02
 #define SCF_SENSE       0x04
@@ -492,15 +462,14 @@ typedef struct Scsi_Ctrl_Blk {
                Target Device Control Structure
 **********************************************************************/
 
-typedef struct Tar_Ctrl_Struc {
-       UWORD TCS_Flags;        /* 0 */
-       UBYTE TCS_JS_Period;    /* 2 */
-       UBYTE TCS_SConfig0;     /* 3 */
-
-       UWORD TCS_DrvFlags;     /* 4 */
-       UBYTE TCS_DrvHead;      /* 6 */
-       UBYTE TCS_DrvSector;    /* 7 */
-} TCS;
+struct target_control {
+       u16 flags;
+       u8 js_period;
+       u8 sconfig0;
+       u16 drv_flags;
+       u8 heads;
+       u8 sectors;
+};
 
 /***********************************************************************
                Target Device Control Structure
@@ -523,62 +492,53 @@ typedef struct Tar_Ctrl_Struc {
 #define TCF_DRV_EN_TAG          0x0800
 #define TCF_DRV_255_63          0x0400
 
-typedef struct I91u_Adpt_Struc {
-       UWORD ADPT_BIOS;        /* 0 */
-       UWORD ADPT_BASE;        /* 1 */
-       UBYTE ADPT_Bus;         /* 2 */
-       UBYTE ADPT_Device;      /* 3 */
-       UBYTE ADPT_INTR;        /* 4 */
-} INI_ADPT_STRUCT;
-
-
 /***********************************************************************
              Host Adapter Control Structure
 ************************************************************************/
-typedef struct Ha_Ctrl_Struc {
-       UWORD HCS_Base;         /* 00 */
-       UWORD HCS_BIOS;         /* 02 */
-       UBYTE HCS_Intr;         /* 04 */
-       UBYTE HCS_SCSI_ID;      /* 05 */
-       UBYTE HCS_MaxTar;       /* 06 */
-       UBYTE HCS_NumScbs;      /* 07 */
-
-       UBYTE HCS_Flags;        /* 08 */
-       UBYTE HCS_Index;        /* 09 */
-       UBYTE HCS_HaId;         /* 0A */
-       UBYTE HCS_Config;       /* 0B */
-       UWORD HCS_IdMask;       /* 0C */
-       UBYTE HCS_Semaph;       /* 0E */
-       UBYTE HCS_Phase;        /* 0F */
-       UBYTE HCS_JSStatus0;    /* 10 */
-       UBYTE HCS_JSInt;        /* 11 */
-       UBYTE HCS_JSStatus1;    /* 12 */
-       UBYTE HCS_SConf1;       /* 13 */
-
-       UBYTE HCS_Msg[8];       /* 14 */
-       SCB *HCS_NxtAvail;      /* 1C */
-       SCB *HCS_Scb;           /* 20 */
-       SCB *HCS_ScbEnd;        /* 24 */
-       SCB *HCS_NxtPend;       /* 28 */
-       SCB *HCS_NxtContig;     /* 2C */
-       SCB *HCS_ActScb;        /* 30 */
-       TCS *HCS_ActTcs;        /* 34 */
-
-       SCB *HCS_FirstAvail;    /* 38 */
-       SCB *HCS_LastAvail;     /* 3C */
-       SCB *HCS_FirstPend;     /* 40 */
-       SCB *HCS_LastPend;      /* 44 */
-       SCB *HCS_FirstBusy;     /* 48 */
-       SCB *HCS_LastBusy;      /* 4C */
-       SCB *HCS_FirstDone;     /* 50 */
-       SCB *HCS_LastDone;      /* 54 */
-       UBYTE HCS_MaxTags[16];  /* 58 */
-       UBYTE HCS_ActTags[16];  /* 68 */
-       TCS HCS_Tcs[MAX_TARGETS];       /* 78 */
-       spinlock_t HCS_AvailLock;
-       spinlock_t HCS_SemaphLock;
+struct initio_host {
+       u16 addr;               /* 00 */
+       u16 bios_addr;          /* 02 */
+       u8 irq;                 /* 04 */
+       u8 scsi_id;             /* 05 */
+       u8 max_tar;             /* 06 */
+       u8 num_scbs;            /* 07 */
+
+       u8 flags;               /* 08 */
+       u8 index;               /* 09 */
+       u8 ha_id;               /* 0A */
+       u8 config;              /* 0B */
+       u16 idmask;             /* 0C */
+       u8 semaph;              /* 0E */
+       u8 phase;               /* 0F */
+       u8 jsstatus0;           /* 10 */
+       u8 jsint;               /* 11 */
+       u8 jsstatus1;           /* 12 */
+       u8 sconf1;              /* 13 */
+
+       u8 msg[8];              /* 14 */
+       struct scsi_ctrl_blk *next_avail;       /* 1C */
+       struct scsi_ctrl_blk *scb;              /* 20 */
+       struct scsi_ctrl_blk *scb_end;          /* 24 */ /*UNUSED*/
+       struct scsi_ctrl_blk *next_pending;     /* 28 */
+       struct scsi_ctrl_blk *next_contig;      /* 2C */ /*UNUSED*/
+       struct scsi_ctrl_blk *active;           /* 30 */
+       struct target_control *active_tc;       /* 34 */
+
+       struct scsi_ctrl_blk *first_avail;      /* 38 */
+       struct scsi_ctrl_blk *last_avail;       /* 3C */
+       struct scsi_ctrl_blk *first_pending;    /* 40 */
+       struct scsi_ctrl_blk *last_pending;     /* 44 */
+       struct scsi_ctrl_blk *first_busy;       /* 48 */
+       struct scsi_ctrl_blk *last_busy;        /* 4C */
+       struct scsi_ctrl_blk *first_done;       /* 50 */
+       struct scsi_ctrl_blk *last_done;        /* 54 */
+       u8 max_tags[16];        /* 58 */
+       u8 act_tags[16];        /* 68 */
+       struct target_control targets[MAX_TARGETS];     /* 78 */
+       spinlock_t avail_lock;
+       spinlock_t semaph_lock;
        struct pci_dev *pci_dev;
-} HCS;
+};
 
 /* Bit Definition for HCB_Config */
 #define HCC_SCSI_RESET          0x01
@@ -599,47 +559,47 @@ typedef struct Ha_Ctrl_Struc {
 *******************************************************************/
 
 typedef struct _NVRAM_SCSI {   /* SCSI channel configuration   */
-       UCHAR NVM_ChSCSIID;     /* 0Ch -> Channel SCSI ID       */
-       UCHAR NVM_ChConfig1;    /* 0Dh -> Channel config 1      */
-       UCHAR NVM_ChConfig2;    /* 0Eh -> Channel config 2      */
-       UCHAR NVM_NumOfTarg;    /* 0Fh -> Number of SCSI target */
+       u8 NVM_ChSCSIID;        /* 0Ch -> Channel SCSI ID       */
+       u8 NVM_ChConfig1;       /* 0Dh -> Channel config 1      */
+       u8 NVM_ChConfig2;       /* 0Eh -> Channel config 2      */
+       u8 NVM_NumOfTarg;       /* 0Fh -> Number of SCSI target */
        /* SCSI target configuration    */
-       UCHAR NVM_Targ0Config;  /* 10h -> Target 0 configuration */
-       UCHAR NVM_Targ1Config;  /* 11h -> Target 1 configuration */
-       UCHAR NVM_Targ2Config;  /* 12h -> Target 2 configuration */
-       UCHAR NVM_Targ3Config;  /* 13h -> Target 3 configuration */
-       UCHAR NVM_Targ4Config;  /* 14h -> Target 4 configuration */
-       UCHAR NVM_Targ5Config;  /* 15h -> Target 5 configuration */
-       UCHAR NVM_Targ6Config;  /* 16h -> Target 6 configuration */
-       UCHAR NVM_Targ7Config;  /* 17h -> Target 7 configuration */
-       UCHAR NVM_Targ8Config;  /* 18h -> Target 8 configuration */
-       UCHAR NVM_Targ9Config;  /* 19h -> Target 9 configuration */
-       UCHAR NVM_TargAConfig;  /* 1Ah -> Target A configuration */
-       UCHAR NVM_TargBConfig;  /* 1Bh -> Target B configuration */
-       UCHAR NVM_TargCConfig;  /* 1Ch -> Target C configuration */
-       UCHAR NVM_TargDConfig;  /* 1Dh -> Target D configuration */
-       UCHAR NVM_TargEConfig;  /* 1Eh -> Target E configuration */
-       UCHAR NVM_TargFConfig;  /* 1Fh -> Target F configuration */
+       u8 NVM_Targ0Config;     /* 10h -> Target 0 configuration */
+       u8 NVM_Targ1Config;     /* 11h -> Target 1 configuration */
+       u8 NVM_Targ2Config;     /* 12h -> Target 2 configuration */
+       u8 NVM_Targ3Config;     /* 13h -> Target 3 configuration */
+       u8 NVM_Targ4Config;     /* 14h -> Target 4 configuration */
+       u8 NVM_Targ5Config;     /* 15h -> Target 5 configuration */
+       u8 NVM_Targ6Config;     /* 16h -> Target 6 configuration */
+       u8 NVM_Targ7Config;     /* 17h -> Target 7 configuration */
+       u8 NVM_Targ8Config;     /* 18h -> Target 8 configuration */
+       u8 NVM_Targ9Config;     /* 19h -> Target 9 configuration */
+       u8 NVM_TargAConfig;     /* 1Ah -> Target A configuration */
+       u8 NVM_TargBConfig;     /* 1Bh -> Target B configuration */
+       u8 NVM_TargCConfig;     /* 1Ch -> Target C configuration */
+       u8 NVM_TargDConfig;     /* 1Dh -> Target D configuration */
+       u8 NVM_TargEConfig;     /* 1Eh -> Target E configuration */
+       u8 NVM_TargFConfig;     /* 1Fh -> Target F configuration */
 } NVRAM_SCSI;
 
 typedef struct _NVRAM {
 /*----------header ---------------*/
-       USHORT NVM_Signature;   /* 0,1: Signature */
-       UCHAR NVM_Size;         /* 2:   Size of data structure */
-       UCHAR NVM_Revision;     /* 3:   Revision of data structure */
+       u16 NVM_Signature;      /* 0,1: Signature */
+       u8 NVM_Size;            /* 2:   Size of data structure */
+       u8 NVM_Revision;        /* 3:   Revision of data structure */
        /* ----Host Adapter Structure ---- */
-       UCHAR NVM_ModelByte0;   /* 4:   Model number (byte 0) */
-       UCHAR NVM_ModelByte1;   /* 5:   Model number (byte 1) */
-       UCHAR NVM_ModelInfo;    /* 6:   Model information         */
-       UCHAR NVM_NumOfCh;      /* 7:   Number of SCSI channel */
-       UCHAR NVM_BIOSConfig1;  /* 8:   BIOS configuration 1  */
-       UCHAR NVM_BIOSConfig2;  /* 9:   BIOS configuration 2  */
-       UCHAR NVM_HAConfig1;    /* A:   Hoat adapter configuration 1 */
-       UCHAR NVM_HAConfig2;    /* B:   Hoat adapter configuration 2 */
+       u8 NVM_ModelByte0;      /* 4:   Model number (byte 0) */
+       u8 NVM_ModelByte1;      /* 5:   Model number (byte 1) */
+       u8 NVM_ModelInfo;       /* 6:   Model information         */
+       u8 NVM_NumOfCh; /* 7:   Number of SCSI channel */
+       u8 NVM_BIOSConfig1;     /* 8:   BIOS configuration 1  */
+       u8 NVM_BIOSConfig2;     /* 9:   BIOS configuration 2  */
+       u8 NVM_HAConfig1;       /* A:   Hoat adapter configuration 1 */
+       u8 NVM_HAConfig2;       /* B:   Hoat adapter configuration 2 */
        NVRAM_SCSI NVM_SCSIInfo[2];
-       UCHAR NVM_reserved[10];
+       u8 NVM_reserved[10];
        /* ---------- CheckSum ----------       */
-       USHORT NVM_CheckSum;    /* 0x3E, 0x3F: Checksum of NVRam        */
+       u16 NVM_CheckSum;       /* 0x3E, 0x3F: Checksum of NVRam        */
 } NVRAM, *PNVRAM;
 
 /* Bios Configuration for nvram->BIOSConfig1                            */
@@ -681,19 +641,6 @@ typedef struct _NVRAM {
 #define DISC_ALLOW              0xC0   /* Disconnect is allowed        */
 #define SCSICMD_RequestSense    0x03
 
-typedef struct _HCSinfo {
-       ULONG base;
-       UCHAR vec;
-       UCHAR bios;             /* High byte of BIOS address */
-       USHORT BaseAndBios;     /* high byte: pHcsInfo->bios,low byte:pHcsInfo->base */
-} HCSINFO;
-
-#define TUL_RD(x,y)             (UCHAR)(inb(  (int)((ULONG)(x+y)) ))
-#define TUL_RDLONG(x,y)         (ULONG)(inl((int)((ULONG)(x+y)) ))
-#define TUL_WR(     adr,data)   outb( (UCHAR)(data), (int)(adr))
-#define TUL_WRSHORT(adr,data)   outw( (UWORD)(data), (int)(adr))
-#define TUL_WRLONG( adr,data)   outl( (ULONG)(data), (int)(adr))
-
 #define SCSI_ABORT_SNOOZE 0
 #define SCSI_ABORT_SUCCESS 1
 #define SCSI_ABORT_PENDING 2