root/drivers/scsi/initio.h
/**************************************************************************
 * 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

/***********************************************************************
                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

struct initio_cmd_priv {
        dma_addr_t sense_dma_addr;
        dma_addr_t sglist_dma_addr;
};

static inline struct initio_cmd_priv *initio_priv(struct scsi_cmnd *cmd)
{
        return scsi_cmd_priv(cmd);
}