Initial import

1 files changed, 667 insertions, 0 deletions

diff --git a/drivers/scsi/initio.h b/drivers/scsi/initio.h
new file mode 100644
index 000000000..219b901bd
--- /dev/null
+++ b/drivers/scsi/initio.h
@@ -0,0 +1,667 @@
+/**************************************************************************
+ * Initio 9100 device driver for Linux.
+ *
+ * Copyright (c) 1994-1998 Initio Corporation
+ * All rights reserved.
+ *
+ * Cleanups (c) Copyright 2007 Red Hat <alan@lxorguk.ukuu.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+
+#include <linux/types.h>
+
+#define TOTAL_SG_ENTRY		32
+#define MAX_SUPPORTED_ADAPTERS  8
+#define MAX_OFFSET		15
+#define MAX_TARGETS		16
+
+typedef struct {
+	unsigned short base;
+	unsigned short vec;
+} i91u_config;
+
+/***************************************/
+/*  Tulip Configuration Register Set */
+/***************************************/
+#define TUL_PVID        0x00	/* Vendor ID                    */
+#define TUL_PDID        0x02	/* Device ID                    */
+#define TUL_PCMD        0x04	/* Command                      */
+#define TUL_PSTUS       0x06	/* Status                       */
+#define TUL_PRID        0x08	/* Revision number              */
+#define TUL_PPI         0x09	/* Programming interface        */
+#define TUL_PSC         0x0A	/* Sub Class                    */
+#define TUL_PBC         0x0B	/* Base Class                   */
+#define TUL_PCLS        0x0C	/* Cache line size              */
+#define TUL_PLTR        0x0D	/* Latency timer                */
+#define TUL_PHDT        0x0E	/* Header type                  */
+#define TUL_PBIST       0x0F	/* BIST                         */
+#define TUL_PBAD        0x10	/* Base address                 */
+#define TUL_PBAD1       0x14	/* Base address                 */
+#define TUL_PBAD2       0x18	/* Base address                 */
+#define TUL_PBAD3       0x1C	/* Base address                 */
+#define TUL_PBAD4       0x20	/* Base address                 */
+#define TUL_PBAD5       0x24	/* Base address                 */
+#define TUL_PRSVD       0x28	/* Reserved                     */
+#define TUL_PRSVD1      0x2C	/* Reserved                     */
+#define TUL_PRAD        0x30	/* Expansion ROM base address   */
+#define TUL_PRSVD2      0x34	/* Reserved                     */
+#define TUL_PRSVD3      0x38	/* Reserved                     */
+#define TUL_PINTL       0x3C	/* Interrupt line               */
+#define TUL_PINTP       0x3D	/* Interrupt pin                */
+#define TUL_PIGNT       0x3E	/* MIN_GNT                      */
+#define TUL_PMGNT       0x3F	/* MAX_GNT                      */
+
+/************************/
+/*  Jasmin Register Set */
+/************************/
+#define TUL_HACFG0      0x40	/* H/A Configuration Register 0         */
+#define TUL_HACFG1      0x41	/* H/A Configuration Register 1         */
+#define TUL_HACFG2      0x42	/* H/A Configuration Register 2         */
+
+#define TUL_SDCFG0      0x44	/* SCSI Device Configuration 0          */
+#define TUL_SDCFG1      0x45	/* SCSI Device Configuration 1          */
+#define TUL_SDCFG2      0x46	/* SCSI Device Configuration 2          */
+#define TUL_SDCFG3      0x47	/* SCSI Device Configuration 3          */
+
+#define TUL_GINTS       0x50	/* Global Interrupt Status Register     */
+#define TUL_GIMSK       0x52	/* Global Interrupt MASK Register       */
+#define TUL_GCTRL       0x54	/* Global Control Register              */
+#define TUL_GCTRL_EEPROM_BIT    0x04
+#define TUL_GCTRL1      0x55	/* Global Control Register              */
+#define TUL_DMACFG      0x5B	/* DMA configuration                    */
+#define TUL_NVRAM       0x5D	/* Non-volatile RAM port                */
+
+#define TUL_SCnt0       0x80	/* 00 R/W Transfer Counter Low          */
+#define TUL_SCnt1       0x81	/* 01 R/W Transfer Counter Mid          */
+#define TUL_SCnt2       0x82	/* 02 R/W Transfer Count High           */
+#define TUL_SFifoCnt    0x83	/* 03 R   FIFO counter                  */
+#define TUL_SIntEnable  0x84	/* 03 W   Interrupt enble               */
+#define TUL_SInt        0x84	/* 04 R   Interrupt Register            */
+#define TUL_SCtrl0      0x85	/* 05 W   Control 0                     */
+#define TUL_SStatus0    0x85	/* 05 R   Status 0                      */
+#define TUL_SCtrl1      0x86	/* 06 W   Control 1                     */
+#define TUL_SStatus1    0x86	/* 06 R   Status 1                      */
+#define TUL_SConfig     0x87	/* 07 W   Configuration                 */
+#define TUL_SStatus2    0x87	/* 07 R   Status 2                      */
+#define TUL_SPeriod     0x88	/* 08 W   Sync. Transfer Period & Offset */
+#define TUL_SOffset     0x88	/* 08 R   Offset                        */
+#define TUL_SScsiId     0x89	/* 09 W   SCSI ID                       */
+#define TUL_SBusId      0x89	/* 09 R   SCSI BUS ID                   */
+#define TUL_STimeOut    0x8A	/* 0A W   Sel/Resel Time Out Register   */
+#define TUL_SIdent      0x8A	/* 0A R   Identify Message Register     */
+#define TUL_SAvail      0x8A	/* 0A R   Available Counter Register   */
+#define TUL_SData       0x8B	/* 0B R/W SCSI data in/out              */
+#define TUL_SFifo       0x8C	/* 0C R/W FIFO                          */
+#define TUL_SSignal     0x90	/* 10 R/W SCSI signal in/out            */
+#define TUL_SCmd        0x91	/* 11 R/W Command                       */
+#define TUL_STest0      0x92	/* 12 R/W Test0                         */
+#define TUL_STest1      0x93	/* 13 R/W Test1                         */
+#define TUL_SCFG1	0x94	/* 14 R/W Configuration                 */
+
+#define TUL_XAddH       0xC0	/*DMA Transfer Physical Address         */
+#define TUL_XAddW       0xC8	/*DMA Current Transfer Physical Address */
+#define TUL_XCntH       0xD0	/*DMA Transfer Counter                  */
+#define TUL_XCntW       0xD4	/*DMA Current Transfer Counter          */
+#define TUL_XCmd        0xD8	/*DMA Command Register                  */
+#define TUL_Int         0xDC	/*Interrupt Register                    */
+#define TUL_XStatus     0xDD	/*DMA status Register                   */
+#define TUL_Mask        0xE0	/*Interrupt Mask Register               */
+#define TUL_XCtrl       0xE4	/*DMA Control Register                  */
+#define TUL_XCtrl1      0xE5	/*DMA Control Register 1                */
+#define TUL_XFifo       0xE8	/*DMA FIFO                              */
+
+#define TUL_WCtrl       0xF7	/*Bus master wait state control         */
+#define TUL_DCtrl       0xFB	/*DMA delay control                     */
+
+/*----------------------------------------------------------------------*/
+/*   bit definition for Command register of Configuration Space Header  */
+/*----------------------------------------------------------------------*/
+#define BUSMS           0x04	/* BUS MASTER Enable                    */
+#define IOSPA           0x01	/* IO Space Enable                      */
+
+/*----------------------------------------------------------------------*/
+/* Command Codes of Tulip SCSI Command register                         */
+/*----------------------------------------------------------------------*/
+#define TSC_EN_RESEL    0x80	/* Enable Reselection                   */
+#define TSC_CMD_COMP    0x84	/* Command Complete Sequence            */
+#define TSC_SEL         0x01	/* Select Without ATN Sequence          */
+#define TSC_SEL_ATN     0x11	/* Select With ATN Sequence             */
+#define TSC_SEL_ATN_DMA 0x51	/* Select With ATN Sequence with DMA    */
+#define TSC_SEL_ATN3    0x31	/* Select With ATN3 Sequence            */
+#define TSC_SEL_ATNSTOP 0x12	/* Select With ATN and Stop Sequence    */
+#define TSC_SELATNSTOP  0x1E	/* Select With ATN and Stop Sequence    */
+
+#define TSC_SEL_ATN_DIRECT_IN   0x95	/* Select With ATN Sequence     */
+#define TSC_SEL_ATN_DIRECT_OUT  0x15	/* Select With ATN Sequence     */
+#define TSC_SEL_ATN3_DIRECT_IN  0xB5	/* Select With ATN3 Sequence    */
+#define TSC_SEL_ATN3_DIRECT_OUT 0x35	/* Select With ATN3 Sequence    */
+#define TSC_XF_DMA_OUT_DIRECT   0x06	/* DMA Xfer Information out      */
+#define TSC_XF_DMA_IN_DIRECT    0x86	/* DMA Xfer Information in       */
+
+#define TSC_XF_DMA_OUT  0x43	/* DMA Xfer Information out              */
+#define TSC_XF_DMA_IN   0xC3	/* DMA Xfer Information in               */
+#define TSC_XF_FIFO_OUT 0x03	/* FIFO Xfer Information out             */
+#define TSC_XF_FIFO_IN  0x83	/* FIFO Xfer Information in              */
+
+#define TSC_MSG_ACCEPT  0x0F	/* Message Accept                       */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Control 0 Register                     */
+/*----------------------------------------------------------------------*/
+#define TSC_RST_SEQ     0x20	/* Reset sequence counter               */
+#define TSC_FLUSH_FIFO  0x10	/* Flush FIFO                           */
+#define TSC_ABT_CMD     0x04	/* Abort command (sequence)             */
+#define TSC_RST_CHIP    0x02	/* Reset SCSI Chip                      */
+#define TSC_RST_BUS     0x01	/* Reset SCSI Bus                       */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Control 1 Register                     */
+/*----------------------------------------------------------------------*/
+#define TSC_EN_SCAM     0x80	/* Enable SCAM                          */
+#define TSC_TIMER       0x40	/* Select timeout unit                  */
+#define TSC_EN_SCSI2    0x20	/* SCSI-2 mode                          */
+#define TSC_PWDN        0x10	/* Power down mode                      */
+#define TSC_WIDE_CPU    0x08	/* Wide CPU                             */
+#define TSC_HW_RESELECT 0x04	/* Enable HW reselect                   */
+#define TSC_EN_BUS_OUT  0x02	/* Enable SCSI data bus out latch       */
+#define TSC_EN_BUS_IN   0x01	/* Enable SCSI data bus in latch        */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Configuration Register                 */
+/*----------------------------------------------------------------------*/
+#define TSC_EN_LATCH    0x80	/* Enable phase latch                   */
+#define TSC_INITIATOR   0x40	/* Initiator mode                       */
+#define TSC_EN_SCSI_PAR 0x20	/* Enable SCSI parity                   */
+#define TSC_DMA_8BIT    0x10	/* Alternate dma 8-bits mode            */
+#define TSC_DMA_16BIT   0x08	/* Alternate dma 16-bits mode           */
+#define TSC_EN_WDACK    0x04	/* Enable DACK while wide SCSI xfer     */
+#define TSC_ALT_PERIOD  0x02	/* Alternate sync period mode           */
+#define TSC_DIS_SCSIRST 0x01	/* Disable SCSI bus reset us            */
+
+#define TSC_INITDEFAULT (TSC_INITIATOR | TSC_EN_LATCH | TSC_ALT_PERIOD | TSC_DIS_SCSIRST)
+
+#define TSC_WIDE_SCSI   0x80	/* Enable Wide SCSI                     */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI signal Register                        */
+/*----------------------------------------------------------------------*/
+#define TSC_RST_ACK     0x00	/* Release ACK signal                   */
+#define TSC_RST_ATN     0x00	/* Release ATN signal                   */
+#define TSC_RST_BSY     0x00	/* Release BSY signal                   */
+
+#define TSC_SET_ACK     0x40	/* ACK signal                           */
+#define TSC_SET_ATN     0x08	/* ATN signal                           */
+
+#define TSC_REQI        0x80	/* REQ signal                           */
+#define TSC_ACKI        0x40	/* ACK signal                           */
+#define TSC_BSYI        0x20	/* BSY signal                           */
+#define TSC_SELI        0x10	/* SEL signal                           */
+#define TSC_ATNI        0x08	/* ATN signal                           */
+#define TSC_MSGI        0x04	/* MSG signal                           */
+#define TSC_CDI         0x02	/* C/D signal                           */
+#define TSC_IOI         0x01	/* I/O signal                           */
+
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Status 0 Register                      */
+/*----------------------------------------------------------------------*/
+#define TSS_INT_PENDING 0x80	/* Interrupt pending            */
+#define TSS_SEQ_ACTIVE  0x40	/* Sequencer active             */
+#define TSS_XFER_CNT    0x20	/* Transfer counter zero        */
+#define TSS_FIFO_EMPTY  0x10	/* FIFO empty                   */
+#define TSS_PAR_ERROR   0x08	/* SCSI parity error            */
+#define TSS_PH_MASK     0x07	/* SCSI phase mask              */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Status 1 Register                      */
+/*----------------------------------------------------------------------*/
+#define TSS_STATUS_RCV  0x08	/* Status received              */
+#define TSS_MSG_SEND    0x40	/* Message sent                 */
+#define TSS_CMD_PH_CMP  0x20	/* command phase done              */
+#define TSS_DATA_PH_CMP 0x10	/* Data phase done              */
+#define TSS_STATUS_SEND 0x08	/* Status sent                  */
+#define TSS_XFER_CMP    0x04	/* Transfer completed           */
+#define TSS_SEL_CMP     0x02	/* Selection completed          */
+#define TSS_ARB_CMP     0x01	/* Arbitration completed        */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Status 2 Register                      */
+/*----------------------------------------------------------------------*/
+#define TSS_CMD_ABTED   0x80	/* Command aborted              */
+#define TSS_OFFSET_0    0x40	/* Offset counter zero          */
+#define TSS_FIFO_FULL   0x20	/* FIFO full                    */
+#define TSS_TIMEOUT_0   0x10	/* Timeout counter zero         */
+#define TSS_BUSY_RLS    0x08	/* Busy release                 */
+#define TSS_PH_MISMATCH 0x04	/* Phase mismatch               */
+#define TSS_SCSI_BUS_EN 0x02	/* SCSI data bus enable         */
+#define TSS_SCSIRST     0x01	/* SCSI bus reset in progress   */
+
+/*----------------------------------------------------------------------*/
+/* bit definition for Tulip SCSI Interrupt Register                     */
+/*----------------------------------------------------------------------*/
+#define TSS_RESEL_INT   0x80	/* Reselected interrupt         */
+#define TSS_SEL_TIMEOUT 0x40	/* Selected/reselected timeout  */
+#define TSS_BUS_SERV    0x20
+#define TSS_SCSIRST_INT 0x10	/* SCSI bus reset detected      */
+#define TSS_DISC_INT    0x08	/* Disconnected interrupt       */
+#define TSS_SEL_INT     0x04	/* Select interrupt             */
+#define TSS_SCAM_SEL    0x02	/* SCAM selected                */
+#define TSS_FUNC_COMP   0x01
+
+/*----------------------------------------------------------------------*/
+/* SCSI Phase Codes.                                                    */
+/*----------------------------------------------------------------------*/
+#define DATA_OUT        0
+#define DATA_IN         1	/* 4                            */
+#define CMD_OUT         2
+#define STATUS_IN       3	/* 6                            */
+#define MSG_OUT         6	/* 3                            */
+#define MSG_IN          7
+
+
+
+/*----------------------------------------------------------------------*/
+/* Command Codes of Tulip xfer Command register                         */
+/*----------------------------------------------------------------------*/
+#define TAX_X_FORC      0x02
+#define TAX_X_ABT       0x04
+#define TAX_X_CLR_FIFO  0x08
+
+#define TAX_X_IN        0x21
+#define TAX_X_OUT       0x01
+#define TAX_SG_IN       0xA1
+#define TAX_SG_OUT      0x81
+
+/*----------------------------------------------------------------------*/
+/* Tulip Interrupt Register                                             */
+/*----------------------------------------------------------------------*/
+#define XCMP            0x01
+#define FCMP            0x02
+#define XABT            0x04
+#define XERR            0x08
+#define SCMP            0x10
+#define IPEND           0x80
+
+/*----------------------------------------------------------------------*/
+/* Tulip DMA Status Register                                            */
+/*----------------------------------------------------------------------*/
+#define XPEND           0x01	/* Transfer pending             */
+#define FEMPTY          0x02	/* FIFO empty                   */
+
+
+
+/*----------------------------------------------------------------------*/
+/* bit definition for TUL_GCTRL                                         */
+/*----------------------------------------------------------------------*/
+#define EXTSG           0x80
+#define EXTAD           0x60
+#define SEG4K           0x08
+#define EEPRG           0x04
+#define MRMUL           0x02
+
+/*----------------------------------------------------------------------*/
+/* bit definition for TUL_NVRAM                                         */
+/*----------------------------------------------------------------------*/
+#define SE2CS           0x08
+#define SE2CLK          0x04
+#define SE2DO           0x02
+#define SE2DI           0x01
+
+
+/************************************************************************/
+/*              Scatter-Gather Element Structure                        */
+/************************************************************************/
+struct sg_entry {
+	u32 data;		/* Data Pointer */
+	u32 len;		/* Data Length */
+};
+
+/***********************************************************************
+		SCSI Control Block
+************************************************************************/
+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 reserved[2];	/*C */
+#else
+	u32 reserved[3];	/*C */
+#endif
+
+	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	/* Contingent Allegiance */
+#define SCB_SELECT      0x08
+#define SCB_BUSY        0x10
+#define SCB_DONE        0x20
+
+
+/* Opcodes for opcode */
+#define ExecSCSI        0x1
+#define BusDevRst       0x2
+#define AbortCmd        0x3
+
+
+/* Bit Definition for mode */
+#define SCM_RSENS       0x01	/* request sense mode */
+
+
+/* Bit Definition for flags */
+#define SCF_DONE        0x01
+#define SCF_POST        0x02
+#define SCF_SENSE       0x04
+#define SCF_DIR         0x18
+#define SCF_NO_DCHK     0x00
+#define SCF_DIN         0x08
+#define SCF_DOUT        0x10
+#define SCF_NO_XF       0x18
+#define SCF_WR_VF       0x20	/* Write verify turn on         */
+#define SCF_POLL        0x40
+#define SCF_SG          0x80
+
+/* Error Codes for SCB_HaStat */
+#define HOST_SEL_TOUT   0x11
+#define HOST_DO_DU      0x12
+#define HOST_BUS_FREE   0x13
+#define HOST_BAD_PHAS   0x14
+#define HOST_INV_CMD    0x16
+#define HOST_ABORTED    0x1A	/* 07/21/98 */
+#define HOST_SCSI_RST   0x1B
+#define HOST_DEV_RST    0x1C
+
+/* Error Codes for SCB_TaStat */
+#define TARGET_CHKCOND  0x02
+#define TARGET_BUSY     0x08
+#define INI_QUEUE_FULL	0x28
+
+/* SCSI MESSAGE */
+#define MSG_COMP        0x00
+#define MSG_EXTEND      0x01
+#define MSG_SDP         0x02
+#define MSG_RESTORE     0x03
+#define MSG_DISC        0x04
+#define MSG_IDE         0x05
+#define MSG_ABORT       0x06
+#define MSG_REJ         0x07
+#define MSG_NOP         0x08
+#define MSG_PARITY      0x09
+#define MSG_LINK_COMP   0x0A
+#define MSG_LINK_FLAG   0x0B
+#define MSG_DEVRST      0x0C
+#define MSG_ABORT_TAG   0x0D
+
+/* Queue tag msg: Simple_quque_tag, Head_of_queue_tag, Ordered_queue_tag */
+#define MSG_STAG        0x20
+#define MSG_HTAG        0x21
+#define MSG_OTAG        0x22
+
+#define MSG_IGNOREWIDE  0x23
+
+#define MSG_IDENT   0x80
+
+/***********************************************************************
+		Target Device Control Structure
+**********************************************************************/
+
+struct target_control {
+	u16 flags;
+	u8 js_period;
+	u8 sconfig0;
+	u16 drv_flags;
+	u8 heads;
+	u8 sectors;
+};
+
+/***********************************************************************
+		Target Device Control Structure
+**********************************************************************/
+
+/* Bit Definition for TCF_Flags */
+#define TCF_SCSI_RATE           0x0007
+#define TCF_EN_DISC             0x0008
+#define TCF_NO_SYNC_NEGO        0x0010
+#define TCF_NO_WDTR             0x0020
+#define TCF_EN_255              0x0040
+#define TCF_EN_START            0x0080
+#define TCF_WDTR_DONE           0x0100
+#define TCF_SYNC_DONE           0x0200
+#define TCF_BUSY                0x0400
+
+
+/* Bit Definition for TCF_DrvFlags */
+#define TCF_DRV_BUSY            0x01	/* Indicate target busy(driver) */
+#define TCF_DRV_EN_TAG          0x0800
+#define TCF_DRV_255_63          0x0400
+
+/***********************************************************************
+	      Host Adapter Control Structure
+************************************************************************/
+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;
+};
+
+/* Bit Definition for HCB_Config */
+#define HCC_SCSI_RESET          0x01
+#define HCC_EN_PAR              0x02
+#define HCC_ACT_TERM1           0x04
+#define HCC_ACT_TERM2           0x08
+#define HCC_AUTO_TERM           0x10
+#define HCC_EN_PWR              0x80
+
+/* Bit Definition for HCB_Flags */
+#define HCF_EXPECT_DISC         0x01
+#define HCF_EXPECT_SELECT       0x02
+#define HCF_EXPECT_RESET        0x10
+#define HCF_EXPECT_DONE_DISC    0x20
+
+/******************************************************************
+	Serial EEProm
+*******************************************************************/
+
+typedef struct _NVRAM_SCSI {	/* SCSI channel configuration   */
+	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    */
+	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 ---------------*/
+	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 ---- */
+	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];
+	u8 NVM_reserved[10];
+	/* ---------- CheckSum ----------       */
+	u16 NVM_CheckSum;	/* 0x3E, 0x3F: Checksum of NVRam        */
+} NVRAM, *PNVRAM;
+
+/* Bios Configuration for nvram->BIOSConfig1                            */
+#define NBC1_ENABLE             0x01	/* BIOS enable                  */
+#define NBC1_8DRIVE             0x02	/* Support more than 2 drives   */
+#define NBC1_REMOVABLE          0x04	/* Support removable drive      */
+#define NBC1_INT19              0x08	/* Intercept int 19h            */
+#define NBC1_BIOSSCAN           0x10	/* Dynamic BIOS scan            */
+#define NBC1_LUNSUPPORT         0x40	/* Support LUN                  */
+
+/* HA Configuration Byte 1                                              */
+#define NHC1_BOOTIDMASK 0x0F	/* Boot ID number               */
+#define NHC1_LUNMASK    0x70	/* Boot LUN number              */
+#define NHC1_CHANMASK   0x80	/* Boot Channel number          */
+
+/* Bit definition for nvram->SCSIconfig1                                */
+#define NCC1_BUSRESET           0x01	/* Reset SCSI bus at power up   */
+#define NCC1_PARITYCHK          0x02	/* SCSI parity enable           */
+#define NCC1_ACTTERM1           0x04	/* Enable active terminator 1   */
+#define NCC1_ACTTERM2           0x08	/* Enable active terminator 2   */
+#define NCC1_AUTOTERM           0x10	/* Enable auto terminator       */
+#define NCC1_PWRMGR             0x80	/* Enable power management      */
+
+/* Bit definition for SCSI Target configuration byte                    */
+#define NTC_DISCONNECT          0x08	/* Enable SCSI disconnect       */
+#define NTC_SYNC                0x10	/* SYNC_NEGO                    */
+#define NTC_NO_WDTR             0x20	/* SYNC_NEGO                    */
+#define NTC_1GIGA               0x40	/* 255 head / 63 sectors (64/32) */
+#define NTC_SPINUP              0x80	/* Start disk drive             */
+
+/*      Default NVRam values                                            */
+#define INI_SIGNATURE           0xC925
+#define NBC1_DEFAULT            (NBC1_ENABLE)
+#define NCC1_DEFAULT            (NCC1_BUSRESET | NCC1_AUTOTERM | NCC1_PARITYCHK)
+#define NTC_DEFAULT             (NTC_NO_WDTR | NTC_1GIGA | NTC_DISCONNECT)
+
+/* SCSI related definition                                              */
+#define DISC_NOT_ALLOW          0x80	/* Disconnect is not allowed    */
+#define DISC_ALLOW              0xC0	/* Disconnect is allowed        */
+#define SCSICMD_RequestSense    0x03
+
+#define SCSI_ABORT_SNOOZE 0
+#define SCSI_ABORT_SUCCESS 1
+#define SCSI_ABORT_PENDING 2
+#define SCSI_ABORT_BUSY 3
+#define SCSI_ABORT_NOT_RUNNING 4
+#define SCSI_ABORT_ERROR 5
+
+#define SCSI_RESET_SNOOZE 0
+#define SCSI_RESET_PUNT 1
+#define SCSI_RESET_SUCCESS 2
+#define SCSI_RESET_PENDING 3
+#define SCSI_RESET_WAKEUP 4
+#define SCSI_RESET_NOT_RUNNING 5
+#define SCSI_RESET_ERROR 6
+
+#define SCSI_RESET_SYNCHRONOUS		0x01
+#define SCSI_RESET_ASYNCHRONOUS		0x02
+#define SCSI_RESET_SUGGEST_BUS_RESET	0x04
+#define SCSI_RESET_SUGGEST_HOST_RESET	0x08
+
+#define SCSI_RESET_BUS_RESET 0x100
+#define SCSI_RESET_HOST_RESET 0x200
+#define SCSI_RESET_ACTION   0xff
+