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Annotation of Gnu-Mach/linux/src/drivers/scsi/sym53c8xx_defs.h, revision 1.1

1.1     ! root        1: /******************************************************************************
        !             2: **  High Performance device driver for the Symbios 53C896 controller.
        !             3: **
        !             4: **  Copyright (C) 1998-2000  Gerard Roudier <[email protected]>
        !             5: **
        !             6: **  This driver also supports all the Symbios 53C8XX controller family, 
        !             7: **  except 53C810 revisions < 16, 53C825 revisions < 16 and all 
        !             8: **  revisions of 53C815 controllers.
        !             9: **
        !            10: **  This driver is based on the Linux port of the FreeBSD ncr driver.
        !            11: ** 
        !            12: **  Copyright (C) 1994  Wolfgang Stanglmeier
        !            13: **  
        !            14: **-----------------------------------------------------------------------------
        !            15: **  
        !            16: **  This program is free software; you can redistribute it and/or modify
        !            17: **  it under the terms of the GNU General Public License as published by
        !            18: **  the Free Software Foundation; either version 2 of the License, or
        !            19: **  (at your option) any later version.
        !            20: **
        !            21: **  This program is distributed in the hope that it will be useful,
        !            22: **  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            23: **  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            24: **  GNU General Public License for more details.
        !            25: **
        !            26: **  You should have received a copy of the GNU General Public License
        !            27: **  along with this program; if not, write to the Free Software
        !            28: **  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
        !            29: **
        !            30: **-----------------------------------------------------------------------------
        !            31: **
        !            32: **  The Linux port of the FreeBSD ncr driver has been achieved in 
        !            33: **  november 1995 by:
        !            34: **
        !            35: **          Gerard Roudier              <[email protected]>
        !            36: **
        !            37: **  Being given that this driver originates from the FreeBSD version, and
        !            38: **  in order to keep synergy on both, any suggested enhancements and corrections
        !            39: **  received on Linux are automatically a potential candidate for the FreeBSD 
        !            40: **  version.
        !            41: **
        !            42: **  The original driver has been written for 386bsd and FreeBSD by
        !            43: **          Wolfgang Stanglmeier        <[email protected]>
        !            44: **          Stefan Esser                <[email protected]>
        !            45: **
        !            46: **-----------------------------------------------------------------------------
        !            47: **
        !            48: **  Major contributions:
        !            49: **  --------------------
        !            50: **
        !            51: **  NVRAM detection and reading.
        !            52: **    Copyright (C) 1997 Richard Waltham <[email protected]>
        !            53: **
        !            54: *******************************************************************************
        !            55: */
        !            56: 
        !            57: #ifndef SYM53C8XX_DEFS_H
        !            58: #define SYM53C8XX_DEFS_H
        !            59: 
        !            60: /*
        !            61: **     Check supported Linux versions
        !            62: */
        !            63: 
        !            64: #if !defined(LINUX_VERSION_CODE)
        !            65: #include <linux/version.h>
        !            66: #endif
        !            67: #include <linux/config.h>
        !            68: 
        !            69: #ifndef LinuxVersionCode
        !            70: #define LinuxVersionCode(v, p, s) (((v)<<16)+((p)<<8)+(s))
        !            71: #endif
        !            72: 
        !            73: /*
        !            74:  * NCR PQS/PDS special device support.
        !            75:  */
        !            76: #ifdef CONFIG_SCSI_NCR53C8XX_PQS_PDS
        !            77: #define SCSI_NCR_PQS_PDS_SUPPORT
        !            78: #endif
        !            79: 
        !            80: /*
        !            81:  *     No more an option, enabled by default.
        !            82:  */
        !            83: #ifndef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
        !            84: #define CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
        !            85: #endif
        !            86: 
        !            87: /*
        !            88: **     These options are not tunable from 'make config'
        !            89: */
        !            90: //#define      SCSI_NCR_PROC_INFO_SUPPORT
        !            91: 
        !            92: /*
        !            93: **     If you want a driver as small as possible, donnot define the 
        !            94: **     following options.
        !            95: */
        !            96: #define SCSI_NCR_BOOT_COMMAND_LINE_SUPPORT
        !            97: #define SCSI_NCR_DEBUG_INFO_SUPPORT
        !            98: #define SCSI_NCR_PCI_FIX_UP_SUPPORT
        !            99: #ifdef SCSI_NCR_PROC_INFO_SUPPORT
        !           100: #      define  SCSI_NCR_USER_COMMAND_SUPPORT
        !           101: #      define  SCSI_NCR_USER_INFO_SUPPORT
        !           102: #endif
        !           103: 
        !           104: /*
        !           105: **     To disable integrity checking, do not define the 
        !           106: **     following option.
        !           107: */
        !           108: #ifdef CONFIG_SCSI_NCR53C8XX_INTEGRITY_CHECK
        !           109: #      define SCSI_NCR_ENABLE_INTEGRITY_CHECK
        !           110: #endif
        !           111: 
        !           112: /*==========================================================
        !           113: **
        !           114: ** nvram settings - #define SCSI_NCR_NVRAM_SUPPORT to enable
        !           115: **
        !           116: **==========================================================
        !           117: */
        !           118: 
        !           119: #ifdef CONFIG_SCSI_NCR53C8XX_NVRAM_DETECT
        !           120: #define SCSI_NCR_NVRAM_SUPPORT
        !           121: /* #define SCSI_NCR_DEBUG_NVRAM */
        !           122: #endif
        !           123: 
        !           124: /* ---------------------------------------------------------------------
        !           125: ** Take into account kernel configured parameters.
        !           126: ** Most of these options can be overridden at startup by a command line.
        !           127: ** ---------------------------------------------------------------------
        !           128: */
        !           129: 
        !           130: /*
        !           131:  * For Ultra2 and Ultra3 SCSI support option, use special features. 
        !           132:  *
        !           133:  * Value (default) means:
        !           134:  *     bit 0 : all features enabled, except:
        !           135:  *             bit 1 : PCI Write And Invalidate.
        !           136:  *             bit 2 : Data Phase Mismatch handling from SCRIPTS.
        !           137:  *
        !           138:  * Use boot options ncr53c8xx=specf:1 if you want all chip features to be 
        !           139:  * enabled by the driver.
        !           140:  */
        !           141: #define        SCSI_NCR_SETUP_SPECIAL_FEATURES         (3)
        !           142: 
        !           143: /*
        !           144:  * For Ultra2 and Ultra3 SCSI support allow 80Mhz synchronous data transfers.
        !           145:  * Value means:
        !           146:  *  0 - Ultra speeds disabled
        !           147:  *  1 - Ultra enabled  (Maximum 20Mtrans/sec)
        !           148:  *  2 - Ultra2 enabled (Maximum 40Mtrans/sec)
        !           149:  *  3 - Ultra3 enabled (Maximum 80Mtrans/sec)
        !           150:  *
        !           151:  * Use boot options sym53c8xx=ultra:3 to enable Ultra3 support.
        !           152:  */
        !           153: 
        !           154: #define SCSI_NCR_SETUP_ULTRA_SCSI              (3)
        !           155: #define SCSI_NCR_MAX_SYNC                      (80)
        !           156: 
        !           157: /*
        !           158:  * Allow tags from 2 to 256, default 8
        !           159:  */
        !           160: #ifdef CONFIG_SCSI_NCR53C8XX_MAX_TAGS
        !           161: #if    CONFIG_SCSI_NCR53C8XX_MAX_TAGS < 2
        !           162: #define SCSI_NCR_MAX_TAGS      (2)
        !           163: #elif  CONFIG_SCSI_NCR53C8XX_MAX_TAGS > 256
        !           164: #define SCSI_NCR_MAX_TAGS      (256)
        !           165: #else
        !           166: #define        SCSI_NCR_MAX_TAGS       CONFIG_SCSI_NCR53C8XX_MAX_TAGS
        !           167: #endif
        !           168: #else
        !           169: #define SCSI_NCR_MAX_TAGS      (8)
        !           170: #endif
        !           171: 
        !           172: /*
        !           173:  * Allow tagged command queuing support if configured with default number 
        !           174:  * of tags set to max (see above).
        !           175:  */
        !           176: #ifdef CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
        !           177: #define        SCSI_NCR_SETUP_DEFAULT_TAGS     CONFIG_SCSI_NCR53C8XX_DEFAULT_TAGS
        !           178: #elif  defined CONFIG_SCSI_NCR53C8XX_TAGGED_QUEUE
        !           179: #define        SCSI_NCR_SETUP_DEFAULT_TAGS     SCSI_NCR_MAX_TAGS
        !           180: #else
        !           181: #define        SCSI_NCR_SETUP_DEFAULT_TAGS     (0)
        !           182: #endif
        !           183: 
        !           184: /*
        !           185:  * Use normal IO if configured. Forced for alpha and powerpc.
        !           186:  * Powerpc fails copying to on-chip RAM using memcpy_toio().
        !           187:  */
        !           188: #if defined(CONFIG_SCSI_NCR53C8XX_IOMAPPED)
        !           189: #define        SCSI_NCR_IOMAPPED
        !           190: #elif defined(__alpha__)
        !           191: #define        SCSI_NCR_IOMAPPED
        !           192: #elif defined(__powerpc__)
        !           193: #define        SCSI_NCR_IOMAPPED
        !           194: #define SCSI_NCR_PCI_MEM_NOT_SUPPORTED
        !           195: #elif defined(__sparc__)
        !           196: #undef SCSI_NCR_IOMAPPED
        !           197: #endif
        !           198: 
        !           199: /*
        !           200:  * Should we enable DAC cycles on this platform?
        !           201:  * Until further investigation we do not enable it
        !           202:  * anywhere at the moment.
        !           203:  */
        !           204: #undef SCSI_NCR_USE_64BIT_DAC
        !           205: 
        !           206: /*
        !           207:  * Immediate arbitration
        !           208:  */
        !           209: #if defined(CONFIG_SCSI_NCR53C8XX_IARB)
        !           210: #define SCSI_NCR_IARB_SUPPORT
        !           211: #endif
        !           212: 
        !           213: /*
        !           214:  * Should we enable DAC cycles on sparc64 platforms?
        !           215:  * Until further investigation we do not enable it
        !           216:  * anywhere at the moment.
        !           217:  */
        !           218: #undef SCSI_NCR_USE_64BIT_DAC
        !           219: 
        !           220: /*
        !           221:  * Sync transfer frequency at startup.
        !           222:  * Allow from 5Mhz to 80Mhz default 20 Mhz.
        !           223:  */
        !           224: #ifndef        CONFIG_SCSI_NCR53C8XX_SYNC
        !           225: #define        CONFIG_SCSI_NCR53C8XX_SYNC      (20)
        !           226: #elif  CONFIG_SCSI_NCR53C8XX_SYNC > SCSI_NCR_MAX_SYNC
        !           227: #undef CONFIG_SCSI_NCR53C8XX_SYNC
        !           228: #define        CONFIG_SCSI_NCR53C8XX_SYNC      SCSI_NCR_MAX_SYNC
        !           229: #endif
        !           230: 
        !           231: #if    CONFIG_SCSI_NCR53C8XX_SYNC == 0
        !           232: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (255)
        !           233: #elif  CONFIG_SCSI_NCR53C8XX_SYNC <= 5
        !           234: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (50)
        !           235: #elif  CONFIG_SCSI_NCR53C8XX_SYNC <= 20
        !           236: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (250/(CONFIG_SCSI_NCR53C8XX_SYNC))
        !           237: #elif  CONFIG_SCSI_NCR53C8XX_SYNC <= 33
        !           238: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (11)
        !           239: #elif  CONFIG_SCSI_NCR53C8XX_SYNC <= 40
        !           240: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (10)
        !           241: #else
        !           242: #define        SCSI_NCR_SETUP_DEFAULT_SYNC     (9)
        !           243: #endif
        !           244: 
        !           245: /*
        !           246:  * Disallow disconnections at boot-up
        !           247:  */
        !           248: #ifdef CONFIG_SCSI_NCR53C8XX_NO_DISCONNECT
        !           249: #define SCSI_NCR_SETUP_DISCONNECTION   (0)
        !           250: #else
        !           251: #define SCSI_NCR_SETUP_DISCONNECTION   (1)
        !           252: #endif
        !           253: 
        !           254: /*
        !           255:  * Force synchronous negotiation for all targets
        !           256:  */
        !           257: #ifdef CONFIG_SCSI_NCR53C8XX_FORCE_SYNC_NEGO
        !           258: #define SCSI_NCR_SETUP_FORCE_SYNC_NEGO (1)
        !           259: #else
        !           260: #define SCSI_NCR_SETUP_FORCE_SYNC_NEGO (0)
        !           261: #endif
        !           262: 
        !           263: /*
        !           264:  * Disable master parity checking (flawed hardwares need that)
        !           265:  */
        !           266: #ifdef CONFIG_SCSI_NCR53C8XX_DISABLE_MPARITY_CHECK
        !           267: #define SCSI_NCR_SETUP_MASTER_PARITY   (0)
        !           268: #else
        !           269: #define SCSI_NCR_SETUP_MASTER_PARITY   (1)
        !           270: #endif
        !           271: 
        !           272: /*
        !           273:  * Disable scsi parity checking (flawed devices may need that)
        !           274:  */
        !           275: #ifdef CONFIG_SCSI_NCR53C8XX_DISABLE_PARITY_CHECK
        !           276: #define SCSI_NCR_SETUP_SCSI_PARITY     (0)
        !           277: #else
        !           278: #define SCSI_NCR_SETUP_SCSI_PARITY     (1)
        !           279: #endif
        !           280: 
        !           281: /*
        !           282:  * Vendor specific stuff
        !           283:  */
        !           284: #ifdef CONFIG_SCSI_NCR53C8XX_SYMBIOS_COMPAT
        !           285: #define SCSI_NCR_SETUP_LED_PIN         (1)
        !           286: #define SCSI_NCR_SETUP_DIFF_SUPPORT    (4)
        !           287: #else
        !           288: #define SCSI_NCR_SETUP_LED_PIN         (0)
        !           289: #define SCSI_NCR_SETUP_DIFF_SUPPORT    (0)
        !           290: #endif
        !           291: 
        !           292: /*
        !           293:  * Settle time after reset at boot-up
        !           294:  */
        !           295: #define SCSI_NCR_SETUP_SETTLE_TIME     (2)
        !           296: 
        !           297: /*
        !           298: **     Bridge quirks work-around option defaulted to 1.
        !           299: */
        !           300: #ifndef        SCSI_NCR_PCIQ_WORK_AROUND_OPT
        !           301: #define        SCSI_NCR_PCIQ_WORK_AROUND_OPT   1
        !           302: #endif
        !           303: 
        !           304: /*
        !           305: **     Work-around common bridge misbehaviour.
        !           306: **
        !           307: **     - Do not flush posted writes in the opposite 
        !           308: **       direction on read.
        !           309: **     - May reorder DMA writes to memory.
        !           310: **
        !           311: **     This option should not affect performances 
        !           312: **     significantly, so it is the default.
        !           313: */
        !           314: #if    SCSI_NCR_PCIQ_WORK_AROUND_OPT == 1
        !           315: #define        SCSI_NCR_PCIQ_MAY_NOT_FLUSH_PW_UPSTREAM
        !           316: #define        SCSI_NCR_PCIQ_MAY_REORDER_WRITES
        !           317: #define        SCSI_NCR_PCIQ_MAY_MISS_COMPLETIONS
        !           318: 
        !           319: /*
        !           320: **     Same as option 1, but also deal with 
        !           321: **     misconfigured interrupts.
        !           322: **
        !           323: **     - Edge triggerred instead of level sensitive.
        !           324: **     - No interrupt line connected.
        !           325: **     - IRQ number misconfigured.
        !           326: **     
        !           327: **     If no interrupt is delivered, the driver will 
        !           328: **     catch the interrupt conditions 10 times per 
        !           329: **     second. No need to say that this option is 
        !           330: **     not recommended.
        !           331: */
        !           332: #elif  SCSI_NCR_PCIQ_WORK_AROUND_OPT == 2
        !           333: #define        SCSI_NCR_PCIQ_MAY_NOT_FLUSH_PW_UPSTREAM
        !           334: #define        SCSI_NCR_PCIQ_MAY_REORDER_WRITES
        !           335: #define        SCSI_NCR_PCIQ_MAY_MISS_COMPLETIONS
        !           336: #define        SCSI_NCR_PCIQ_BROKEN_INTR
        !           337: 
        !           338: /*
        !           339: **     Some bridge designers decided to flush 
        !           340: **     everything prior to deliver the interrupt.
        !           341: **     This option tries to deal with such a 
        !           342: **     behaviour.
        !           343: */
        !           344: #elif  SCSI_NCR_PCIQ_WORK_AROUND_OPT == 3
        !           345: #define        SCSI_NCR_PCIQ_SYNC_ON_INTR
        !           346: #endif
        !           347: 
        !           348: /*
        !           349: **     Other parameters not configurable with "make config"
        !           350: **     Avoid to change these constants, unless you know what you are doing.
        !           351: */
        !           352: 
        !           353: #define SCSI_NCR_ALWAYS_SIMPLE_TAG
        !           354: #define SCSI_NCR_MAX_SCATTER   (127)
        !           355: #define SCSI_NCR_MAX_TARGET    (16)
        !           356: 
        !           357: /*
        !           358: **   Compute some desirable value for CAN_QUEUE 
        !           359: **   and CMD_PER_LUN.
        !           360: **   The driver will use lower values if these 
        !           361: **   ones appear to be too large.
        !           362: */
        !           363: #define SCSI_NCR_CAN_QUEUE     (8*SCSI_NCR_MAX_TAGS + 2*SCSI_NCR_MAX_TARGET)
        !           364: #define SCSI_NCR_CMD_PER_LUN   (SCSI_NCR_MAX_TAGS)
        !           365: 
        !           366: #define SCSI_NCR_SG_TABLESIZE  (SCSI_NCR_MAX_SCATTER)
        !           367: #define SCSI_NCR_TIMER_INTERVAL        (HZ)
        !           368: 
        !           369: #if 1 /* defined CONFIG_SCSI_MULTI_LUN */
        !           370: #define SCSI_NCR_MAX_LUN       (16)
        !           371: #else
        !           372: #define SCSI_NCR_MAX_LUN       (1)
        !           373: #endif
        !           374: 
        !           375: #ifndef HOSTS_C
        !           376: 
        !           377: /*
        !           378: **     These simple macros limit expression involving 
        !           379: **     kernel time values (jiffies) to some that have 
        !           380: **     chance not to be too much incorrect. :-)
        !           381: */
        !           382: #define ktime_get(o)           (jiffies + (u_long) o)
        !           383: #define ktime_exp(b)           ((long)(jiffies) - (long)(b) >= 0)
        !           384: #define ktime_dif(a, b)                ((long)(a) - (long)(b))
        !           385: /* These ones are not used in this driver */
        !           386: #define ktime_add(a, o)                ((a) + (u_long)(o))
        !           387: #define ktime_sub(a, o)                ((a) - (u_long)(o))
        !           388: 
        !           389: 
        !           390: /*
        !           391:  *  IO functions definition for big/little endian CPU support.
        !           392:  *  For now, the NCR is only supported in little endian addressing mode, 
        !           393:  */
        !           394: 
        !           395: #ifdef __BIG_ENDIAN
        !           396: 
        !           397: #if    LINUX_VERSION_CODE < LinuxVersionCode(2,1,0)
        !           398: #error "BIG ENDIAN byte ordering needs kernel version >= 2.1.0"
        !           399: #endif
        !           400: 
        !           401: #define        inw_l2b         inw
        !           402: #define        inl_l2b         inl
        !           403: #define        outw_b2l        outw
        !           404: #define        outl_b2l        outl
        !           405: #define        readw_l2b       readw
        !           406: #define        readl_l2b       readl
        !           407: #define        writew_b2l      writew
        !           408: #define        writel_b2l      writel
        !           409: 
        !           410: #else  /* little endian */
        !           411: 
        !           412: #if defined(__i386__)  /* i386 implements full FLAT memory/MMIO model */
        !           413: #define        inw_raw         inw
        !           414: #define        inl_raw         inl
        !           415: #define        outw_raw        outw
        !           416: #define        outl_raw        outl
        !           417: #define readb_raw(a)   (*(volatile unsigned char *) (a))
        !           418: #define readw_raw(a)   (*(volatile unsigned short *) (a))
        !           419: #define readl_raw(a)   (*(volatile unsigned int *) (a))
        !           420: #define writeb_raw(b,a)        ((*(volatile unsigned char *) (a)) = (b))
        !           421: #define writew_raw(b,a)        ((*(volatile unsigned short *) (a)) = (b))
        !           422: #define writel_raw(b,a)        ((*(volatile unsigned int *) (a)) = (b))
        !           423: 
        !           424: #else  /* Other little-endian */
        !           425: #define        inw_raw         inw
        !           426: #define        inl_raw         inl
        !           427: #define        outw_raw        outw
        !           428: #define        outl_raw        outl
        !           429: #define        readw_raw       readw
        !           430: #define        readl_raw       readl
        !           431: #define        writew_raw      writew
        !           432: #define        writel_raw      writel
        !           433: 
        !           434: #endif
        !           435: #endif
        !           436: 
        !           437: #ifdef SCSI_NCR_BIG_ENDIAN
        !           438: #error "The NCR in BIG ENDIAN addressing mode is not (yet) supported"
        !           439: #endif
        !           440: 
        !           441: 
        !           442: /*
        !           443:  *  IA32 architecture does not reorder STORES and prevents
        !           444:  *  LOADS from passing STORES. It is called `program order' 
        !           445:  *  by Intel and allows device drivers to deal with memory 
        !           446:  *  ordering by only ensuring that the code is not reordered  
        !           447:  *  by the compiler when ordering is required.
        !           448:  *  Other architectures implement a weaker ordering that 
        !           449:  *  requires memory barriers (and also IO barriers when they 
        !           450:  *  make sense) to be used.
        !           451:  *  We want to be paranoid for ppc and ia64. :)
        !           452:  */
        !           453: 
        !           454: #if    defined __i386__
        !           455: #define MEMORY_BARRIER()       do { ; } while(0)
        !           456: #elif  defined __powerpc__
        !           457: #define MEMORY_BARRIER()       __asm__ volatile("eieio; sync" : : : "memory")
        !           458: #elif  defined __ia64__
        !           459: #define MEMORY_BARRIER()       __asm__ volatile("mf.a; mf" : : : "memory")
        !           460: #else
        !           461: #define MEMORY_BARRIER()       mb()
        !           462: #endif
        !           463: 
        !           464: 
        !           465: /*
        !           466:  *  If the NCR uses big endian addressing mode over the 
        !           467:  *  PCI, actual io register addresses for byte and word 
        !           468:  *  accesses must be changed according to lane routing.
        !           469:  *  Btw, ncr_offb() and ncr_offw() macros only apply to 
        !           470:  *  constants and so donnot generate bloated code.
        !           471:  */
        !           472: 
        !           473: #if    defined(SCSI_NCR_BIG_ENDIAN)
        !           474: 
        !           475: #define ncr_offb(o)    (((o)&~3)+((~((o)&3))&3))
        !           476: #define ncr_offw(o)    (((o)&~3)+((~((o)&3))&2))
        !           477: 
        !           478: #else
        !           479: 
        !           480: #define ncr_offb(o)    (o)
        !           481: #define ncr_offw(o)    (o)
        !           482: 
        !           483: #endif
        !           484: 
        !           485: /*
        !           486:  *  If the CPU and the NCR use same endian-ness addressing,
        !           487:  *  no byte reordering is needed for script patching.
        !           488:  *  Macro cpu_to_scr() is to be used for script patching.
        !           489:  *  Macro scr_to_cpu() is to be used for getting a DWORD 
        !           490:  *  from the script.
        !           491:  */
        !           492: 
        !           493: #if    defined(__BIG_ENDIAN) && !defined(SCSI_NCR_BIG_ENDIAN)
        !           494: 
        !           495: #define cpu_to_scr(dw) cpu_to_le32(dw)
        !           496: #define scr_to_cpu(dw) le32_to_cpu(dw)
        !           497: 
        !           498: #elif  defined(__LITTLE_ENDIAN) && defined(SCSI_NCR_BIG_ENDIAN)
        !           499: 
        !           500: #define cpu_to_scr(dw) cpu_to_be32(dw)
        !           501: #define scr_to_cpu(dw) be32_to_cpu(dw)
        !           502: 
        !           503: #else
        !           504: 
        !           505: #define cpu_to_scr(dw) (dw)
        !           506: #define scr_to_cpu(dw) (dw)
        !           507: 
        !           508: #endif
        !           509: 
        !           510: /*
        !           511:  *  Access to the controller chip.
        !           512:  *
        !           513:  *  If SCSI_NCR_IOMAPPED is defined, the driver will use 
        !           514:  *  normal IOs instead of the MEMORY MAPPED IO method  
        !           515:  *  recommended by PCI specifications.
        !           516:  *  If all PCI bridges, host brigdes and architectures 
        !           517:  *  would have been correctly designed for PCI, this 
        !           518:  *  option would be useless.
        !           519:  *
        !           520:  *  If the CPU and the NCR use same endian-ness addressing,
        !           521:  *  no byte reordering is needed for accessing chip io 
        !           522:  *  registers. Functions suffixed by '_raw' are assumed 
        !           523:  *  to access the chip over the PCI without doing byte 
        !           524:  *  reordering. Functions suffixed by '_l2b' are 
        !           525:  *  assumed to perform little-endian to big-endian byte 
        !           526:  *  reordering, those suffixed by '_b2l' blah, blah,
        !           527:  *  blah, ...
        !           528:  */
        !           529: 
        !           530: #if defined(SCSI_NCR_IOMAPPED)
        !           531: 
        !           532: /*
        !           533:  *  IO mapped only input / ouput
        !           534:  */
        !           535: 
        !           536: #define        INB_OFF(o)              inb (np->base_io + ncr_offb(o))
        !           537: #define        OUTB_OFF(o, val)        outb ((val), np->base_io + ncr_offb(o))
        !           538: 
        !           539: #if    defined(__BIG_ENDIAN) && !defined(SCSI_NCR_BIG_ENDIAN)
        !           540: 
        !           541: #define        INW_OFF(o)              inw_l2b (np->base_io + ncr_offw(o))
        !           542: #define        INL_OFF(o)              inl_l2b (np->base_io + (o))
        !           543: 
        !           544: #define        OUTW_OFF(o, val)        outw_b2l ((val), np->base_io + ncr_offw(o))
        !           545: #define        OUTL_OFF(o, val)        outl_b2l ((val), np->base_io + (o))
        !           546: 
        !           547: #elif  defined(__LITTLE_ENDIAN) && defined(SCSI_NCR_BIG_ENDIAN)
        !           548: 
        !           549: #define        INW_OFF(o)              inw_b2l (np->base_io + ncr_offw(o))
        !           550: #define        INL_OFF(o)              inl_b2l (np->base_io + (o))
        !           551: 
        !           552: #define        OUTW_OFF(o, val)        outw_l2b ((val), np->base_io + ncr_offw(o))
        !           553: #define        OUTL_OFF(o, val)        outl_l2b ((val), np->base_io + (o))
        !           554: 
        !           555: #else
        !           556: 
        !           557: #define        INW_OFF(o)              inw_raw (np->base_io + ncr_offw(o))
        !           558: #define        INL_OFF(o)              inl_raw (np->base_io + (o))
        !           559: 
        !           560: #define        OUTW_OFF(o, val)        outw_raw ((val), np->base_io + ncr_offw(o))
        !           561: #define        OUTL_OFF(o, val)        outl_raw ((val), np->base_io + (o))
        !           562: 
        !           563: #endif /* ENDIANs */
        !           564: 
        !           565: #else  /* defined SCSI_NCR_IOMAPPED */
        !           566: 
        !           567: /*
        !           568:  *  MEMORY mapped IO input / output
        !           569:  */
        !           570: 
        !           571: #define INB_OFF(o)             readb((char *)np->reg + ncr_offb(o))
        !           572: #define OUTB_OFF(o, val)       writeb((val), (char *)np->reg + ncr_offb(o))
        !           573: 
        !           574: #if    defined(__BIG_ENDIAN) && !defined(SCSI_NCR_BIG_ENDIAN)
        !           575: 
        !           576: #define INW_OFF(o)             readw_l2b((char *)np->reg + ncr_offw(o))
        !           577: #define INL_OFF(o)             readl_l2b((char *)np->reg + (o))
        !           578: 
        !           579: #define OUTW_OFF(o, val)       writew_b2l((val), (char *)np->reg + ncr_offw(o))
        !           580: #define OUTL_OFF(o, val)       writel_b2l((val), (char *)np->reg + (o))
        !           581: 
        !           582: #elif  defined(__LITTLE_ENDIAN) && defined(SCSI_NCR_BIG_ENDIAN)
        !           583: 
        !           584: #define INW_OFF(o)             readw_b2l((char *)np->reg + ncr_offw(o))
        !           585: #define INL_OFF(o)             readl_b2l((char *)np->reg + (o))
        !           586: 
        !           587: #define OUTW_OFF(o, val)       writew_l2b((val), (char *)np->reg + ncr_offw(o))
        !           588: #define OUTL_OFF(o, val)       writel_l2b((val), (char *)np->reg + (o))
        !           589: 
        !           590: #else
        !           591: 
        !           592: #define INW_OFF(o)             readw_raw((char *)np->reg + ncr_offw(o))
        !           593: #define INL_OFF(o)             readl_raw((char *)np->reg + (o))
        !           594: 
        !           595: #define OUTW_OFF(o, val)       writew_raw((val), (char *)np->reg + ncr_offw(o))
        !           596: #define OUTL_OFF(o, val)       writel_raw((val), (char *)np->reg + (o))
        !           597: 
        !           598: #endif
        !           599: 
        !           600: #endif /* defined SCSI_NCR_IOMAPPED */
        !           601: 
        !           602: #define INB(r)         INB_OFF (offsetof(struct ncr_reg,r))
        !           603: #define INW(r)         INW_OFF (offsetof(struct ncr_reg,r))
        !           604: #define INL(r)         INL_OFF (offsetof(struct ncr_reg,r))
        !           605: 
        !           606: #define OUTB(r, val)   OUTB_OFF (offsetof(struct ncr_reg,r), (val))
        !           607: #define OUTW(r, val)   OUTW_OFF (offsetof(struct ncr_reg,r), (val))
        !           608: #define OUTL(r, val)   OUTL_OFF (offsetof(struct ncr_reg,r), (val))
        !           609: 
        !           610: /*
        !           611:  *  Set bit field ON, OFF 
        !           612:  */
        !           613: 
        !           614: #define OUTONB(r, m)   OUTB(r, INB(r) | (m))
        !           615: #define OUTOFFB(r, m)  OUTB(r, INB(r) & ~(m))
        !           616: #define OUTONW(r, m)   OUTW(r, INW(r) | (m))
        !           617: #define OUTOFFW(r, m)  OUTW(r, INW(r) & ~(m))
        !           618: #define OUTONL(r, m)   OUTL(r, INL(r) | (m))
        !           619: #define OUTOFFL(r, m)  OUTL(r, INL(r) & ~(m))
        !           620: 
        !           621: /*
        !           622:  *  We normally want the chip to have a consistent view
        !           623:  *  of driver internal data structures when we restart it.
        !           624:  *  Thus these macros.
        !           625:  */
        !           626: #define OUTL_DSP(v)                            \
        !           627:        do {                                    \
        !           628:                MEMORY_BARRIER();               \
        !           629:                OUTL (nc_dsp, (v));             \
        !           630:        } while (0)
        !           631: 
        !           632: #define OUTONB_STD()                           \
        !           633:        do {                                    \
        !           634:                MEMORY_BARRIER();               \
        !           635:                OUTONB (nc_dcntl, (STD|NOCOM)); \
        !           636:        } while (0)
        !           637: 
        !           638: 
        !           639: /*
        !           640: **     NCR53C8XX Device Ids
        !           641: */
        !           642: 
        !           643: #ifndef PCI_DEVICE_ID_NCR_53C810
        !           644: #define PCI_DEVICE_ID_NCR_53C810 1
        !           645: #endif
        !           646: 
        !           647: #ifndef PCI_DEVICE_ID_NCR_53C810AP
        !           648: #define PCI_DEVICE_ID_NCR_53C810AP 5
        !           649: #endif
        !           650: 
        !           651: #ifndef PCI_DEVICE_ID_NCR_53C815
        !           652: #define PCI_DEVICE_ID_NCR_53C815 4
        !           653: #endif
        !           654: 
        !           655: #ifndef PCI_DEVICE_ID_NCR_53C820
        !           656: #define PCI_DEVICE_ID_NCR_53C820 2
        !           657: #endif
        !           658: 
        !           659: #ifndef PCI_DEVICE_ID_NCR_53C825
        !           660: #define PCI_DEVICE_ID_NCR_53C825 3
        !           661: #endif
        !           662: 
        !           663: #ifndef PCI_DEVICE_ID_NCR_53C860
        !           664: #define PCI_DEVICE_ID_NCR_53C860 6
        !           665: #endif
        !           666: 
        !           667: #ifndef PCI_DEVICE_ID_NCR_53C875
        !           668: #define PCI_DEVICE_ID_NCR_53C875 0xf
        !           669: #endif
        !           670: 
        !           671: #ifndef PCI_DEVICE_ID_NCR_53C875J
        !           672: #define PCI_DEVICE_ID_NCR_53C875J 0x8f
        !           673: #endif
        !           674: 
        !           675: #ifndef PCI_DEVICE_ID_NCR_53C885
        !           676: #define PCI_DEVICE_ID_NCR_53C885 0xd
        !           677: #endif
        !           678: 
        !           679: #ifndef PCI_DEVICE_ID_NCR_53C895
        !           680: #define PCI_DEVICE_ID_NCR_53C895 0xc
        !           681: #endif
        !           682: 
        !           683: #ifndef PCI_DEVICE_ID_NCR_53C896
        !           684: #define PCI_DEVICE_ID_NCR_53C896 0xb
        !           685: #endif
        !           686: 
        !           687: #ifndef PCI_DEVICE_ID_NCR_53C895A
        !           688: #define PCI_DEVICE_ID_NCR_53C895A 0x12
        !           689: #endif
        !           690: 
        !           691: #ifndef PCI_DEVICE_ID_NCR_53C1510D
        !           692: #define PCI_DEVICE_ID_NCR_53C1510D 0xa
        !           693: #endif
        !           694: 
        !           695: #ifndef PCI_DEVICE_ID_LSI_53C1010
        !           696: #define PCI_DEVICE_ID_LSI_53C1010 0x20
        !           697: #endif
        !           698: 
        !           699: #ifndef PCI_DEVICE_ID_LSI_53C1010_66
        !           700: #define PCI_DEVICE_ID_LSI_53C1010_66 0x21
        !           701: #endif
        !           702: 
        !           703: 
        !           704: /*
        !           705: **   NCR53C8XX devices features table.
        !           706: */
        !           707: typedef struct {
        !           708:        unsigned short  device_id;
        !           709:        unsigned short  revision_id;
        !           710:        char    *name;
        !           711:        unsigned char   burst_max;      /* log-base-2 of max burst */
        !           712:        unsigned char   offset_max;
        !           713:        unsigned char   nr_divisor;
        !           714:        unsigned int    features;
        !           715: #define FE_LED0                (1<<0)
        !           716: #define FE_WIDE                (1<<1)    /* Wide data transfers */
        !           717: #define FE_ULTRA       (1<<2)    /* Ultra speed 20Mtrans/sec */
        !           718: #define FE_ULTRA2      (1<<3)    /* Ultra 2 - 40 Mtrans/sec */
        !           719: #define FE_DBLR                (1<<4)    /* Clock doubler present */
        !           720: #define FE_QUAD                (1<<5)    /* Clock quadrupler present */
        !           721: #define FE_ERL         (1<<6)    /* Enable read line */
        !           722: #define FE_CLSE                (1<<7)    /* Cache line size enable */
        !           723: #define FE_WRIE                (1<<8)    /* Write & Invalidate enable */
        !           724: #define FE_ERMP                (1<<9)    /* Enable read multiple */
        !           725: #define FE_BOF         (1<<10)   /* Burst opcode fetch */
        !           726: #define FE_DFS         (1<<11)   /* DMA fifo size */
        !           727: #define FE_PFEN                (1<<12)   /* Prefetch enable */
        !           728: #define FE_LDSTR       (1<<13)   /* Load/Store supported */
        !           729: #define FE_RAM         (1<<14)   /* On chip RAM present */
        !           730: #define FE_CLK80       (1<<15)   /* Board clock is 80 MHz */
        !           731: #define FE_RAM8K       (1<<16)   /* On chip RAM sized 8Kb */
        !           732: #define FE_64BIT       (1<<17)   /* Supports 64-bit addressing */
        !           733: #define FE_IO256       (1<<18)   /* Requires full 256 bytes in PCI space */
        !           734: #define FE_NOPM                (1<<19)   /* Scripts handles phase mismatch */
        !           735: #define FE_LEDC                (1<<20)   /* Hardware control of LED */
        !           736: #define FE_DIFF                (1<<21)   /* Support Differential SCSI */
        !           737: #define FE_ULTRA3      (1<<22)   /* Ultra-3 80Mtrans/sec */
        !           738: #define FE_66MHZ       (1<<23)   /* 66MHz PCI Support */
        !           739: 
        !           740: #define FE_CACHE_SET   (FE_ERL|FE_CLSE|FE_WRIE|FE_ERMP)
        !           741: #define FE_SCSI_SET    (FE_WIDE|FE_ULTRA|FE_ULTRA2|FE_DBLR|FE_QUAD|F_CLK80)
        !           742: #define FE_SPECIAL_SET (FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM)
        !           743: } ncr_chip;
        !           744: 
        !           745: /*
        !           746: **     DEL 397 - 53C875 Rev 3 - Part Number 609-0392410 - ITEM 3.
        !           747: **     Memory Read transaction terminated by a retry followed by 
        !           748: **     Memory Read Line command.
        !           749: */
        !           750: #define FE_CACHE0_SET  (FE_CACHE_SET & ~FE_ERL)
        !           751: 
        !           752: /*
        !           753: **     DEL 397 - 53C875 Rev 3 - Part Number 609-0392410 - ITEM 5.
        !           754: **     On paper, this errata is harmless. But it is a good reason for 
        !           755: **     using a shorter programmed burst length (64 DWORDS instead of 128).
        !           756: */
        !           757: 
        !           758: #define SCSI_NCR_CHIP_TABLE                                            \
        !           759: {                                                                      \
        !           760:  {PCI_DEVICE_ID_NCR_53C810, 0x0f, "810",  4,  8, 4,                    \
        !           761:  FE_ERL}                                                               \
        !           762:  ,                                                                     \
        !           763:  {PCI_DEVICE_ID_NCR_53C810, 0xff, "810a", 4,  8, 4,                    \
        !           764:  FE_CACHE_SET|FE_LDSTR|FE_PFEN|FE_BOF}                                 \
        !           765:  ,                                                                     \
        !           766:  {PCI_DEVICE_ID_NCR_53C815, 0xff, "815",  4,  8, 4,                    \
        !           767:  FE_ERL|FE_BOF}                                                                \
        !           768:  ,                                                                     \
        !           769:  {PCI_DEVICE_ID_NCR_53C820, 0xff, "820",  4,  8, 4,                    \
        !           770:  FE_WIDE|FE_ERL}                                                       \
        !           771:  ,                                                                     \
        !           772:  {PCI_DEVICE_ID_NCR_53C825, 0x0f, "825",  4,  8, 4,                    \
        !           773:  FE_WIDE|FE_ERL|FE_BOF|FE_DIFF}                                                \
        !           774:  ,                                                                     \
        !           775:  {PCI_DEVICE_ID_NCR_53C825, 0xff, "825a", 6,  8, 4,                    \
        !           776:  FE_WIDE|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|FE_RAM|FE_DIFF}  \
        !           777:  ,                                                                     \
        !           778:  {PCI_DEVICE_ID_NCR_53C860, 0xff, "860",  4,  8, 5,                    \
        !           779:  FE_ULTRA|FE_CLK80|FE_CACHE_SET|FE_BOF|FE_LDSTR|FE_PFEN}               \
        !           780:  ,                                                                     \
        !           781:  {PCI_DEVICE_ID_NCR_53C875, 0x01, "875",  6, 16, 5,                    \
        !           782:  FE_WIDE|FE_ULTRA|FE_CLK80|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|\
        !           783:  FE_RAM|FE_DIFF}                                                       \
        !           784:  ,                                                                     \
        !           785:  {PCI_DEVICE_ID_NCR_53C875, 0x0f, "875",  6, 16, 5,                    \
        !           786:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           787:  FE_RAM|FE_DIFF}                                                       \
        !           788:  ,                                                                     \
        !           789:  {PCI_DEVICE_ID_NCR_53C875, 0x1f, "876",  6, 16, 5,                    \
        !           790:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           791:  FE_RAM|FE_DIFF}                                                       \
        !           792:  ,                                                                     \
        !           793:  {PCI_DEVICE_ID_NCR_53C875, 0x2f, "875E",  6, 16, 5,                   \
        !           794:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           795:  FE_RAM|FE_DIFF}                                                       \
        !           796:  ,                                                                     \
        !           797:  {PCI_DEVICE_ID_NCR_53C875, 0xff, "876",  6, 16, 5,                    \
        !           798:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           799:  FE_RAM|FE_DIFF}                                                       \
        !           800:  ,                                                                     \
        !           801:  {PCI_DEVICE_ID_NCR_53C875J,0xff, "875J", 6, 16, 5,                    \
        !           802:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           803:  FE_RAM}                                                               \
        !           804:  ,                                                                     \
        !           805:  {PCI_DEVICE_ID_NCR_53C885, 0xff, "885",  6, 16, 5,                    \
        !           806:  FE_WIDE|FE_ULTRA|FE_DBLR|FE_CACHE0_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           807:  FE_RAM|FE_DIFF}                                                       \
        !           808:  ,                                                                     \
        !           809:  {PCI_DEVICE_ID_NCR_53C895, 0xff, "895",  6, 31, 7,                    \
        !           810:  FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           811:  FE_RAM}                                                               \
        !           812:  ,                                                                     \
        !           813:  {PCI_DEVICE_ID_NCR_53C896, 0xff, "896",  6, 31, 7,                    \
        !           814:  FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           815:  FE_RAM|FE_RAM8K|FE_64BIT|FE_IO256|FE_NOPM|FE_LEDC}                    \
        !           816:  ,                                                                     \
        !           817:  {PCI_DEVICE_ID_NCR_53C895A, 0xff, "895a",  6, 31, 7,                  \
        !           818:  FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           819:  FE_RAM|FE_RAM8K|FE_64BIT|FE_IO256|FE_NOPM|FE_LEDC}                    \
        !           820:  ,                                                                     \
        !           821:  {PCI_DEVICE_ID_NCR_53C1510D, 0xff, "1510D",  7, 31, 7,                        \
        !           822:  FE_WIDE|FE_ULTRA2|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|        \
        !           823:  FE_RAM|FE_IO256}                                                      \
        !           824:  ,                                                                     \
        !           825:  {PCI_DEVICE_ID_LSI_53C1010, 0xff, "1010",  6, 31, 7,                  \
        !           826:  FE_WIDE|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|          \
        !           827:  FE_RAM|FE_RAM8K|FE_64BIT|FE_IO256|FE_NOPM|FE_LEDC|FE_ULTRA3}          \
        !           828:  ,                                                                     \
        !           829:  {PCI_DEVICE_ID_LSI_53C1010_66, 0xff, "1010_66",  6, 31, 7,            \
        !           830:  FE_WIDE|FE_QUAD|FE_CACHE_SET|FE_BOF|FE_DFS|FE_LDSTR|FE_PFEN|          \
        !           831:  FE_RAM|FE_RAM8K|FE_64BIT|FE_IO256|FE_NOPM|FE_LEDC|FE_ULTRA3|FE_66MHZ} \
        !           832: }
        !           833: 
        !           834: /*
        !           835:  * List of supported NCR chip ids
        !           836:  */
        !           837: #define SCSI_NCR_CHIP_IDS              \
        !           838: {                                      \
        !           839:        PCI_DEVICE_ID_NCR_53C810,       \
        !           840:        PCI_DEVICE_ID_NCR_53C815,       \
        !           841:        PCI_DEVICE_ID_NCR_53C820,       \
        !           842:        PCI_DEVICE_ID_NCR_53C825,       \
        !           843:        PCI_DEVICE_ID_NCR_53C860,       \
        !           844:        PCI_DEVICE_ID_NCR_53C875,       \
        !           845:        PCI_DEVICE_ID_NCR_53C875J,      \
        !           846:        PCI_DEVICE_ID_NCR_53C885,       \
        !           847:        PCI_DEVICE_ID_NCR_53C895,       \
        !           848:        PCI_DEVICE_ID_NCR_53C896,       \
        !           849:        PCI_DEVICE_ID_NCR_53C895A,      \
        !           850:        PCI_DEVICE_ID_NCR_53C1510D,     \
        !           851:        PCI_DEVICE_ID_LSI_53C1010,      \
        !           852:        PCI_DEVICE_ID_LSI_53C1010_66    \
        !           853: }
        !           854: 
        !           855: /*
        !           856: **     Driver setup structure.
        !           857: **
        !           858: **     This structure is initialized from linux config options.
        !           859: **     It can be overridden at boot-up by the boot command line.
        !           860: */
        !           861: #define SCSI_NCR_MAX_EXCLUDES 8
        !           862: struct ncr_driver_setup {
        !           863:        u_char  master_parity;
        !           864:        u_char  scsi_parity;
        !           865:        u_char  disconnection;
        !           866:        u_char  special_features;
        !           867:        u_char  ultra_scsi;
        !           868:        u_char  force_sync_nego;
        !           869:        u_char  reverse_probe;
        !           870:        u_char  pci_fix_up;
        !           871:        u_char  use_nvram;
        !           872:        u_char  verbose;
        !           873:        u_char  default_tags;
        !           874:        u_short default_sync;
        !           875:        u_short debug;
        !           876:        u_char  burst_max;
        !           877:        u_char  led_pin;
        !           878:        u_char  max_wide;
        !           879:        u_char  settle_delay;
        !           880:        u_char  diff_support;
        !           881:        u_char  irqm;
        !           882:        u_char  bus_check;
        !           883:        u_char  optimize;
        !           884:        u_char  recovery;
        !           885:        u_char  host_id;
        !           886:        u_short iarb;
        !           887:        u_long  excludes[SCSI_NCR_MAX_EXCLUDES];
        !           888:        char    tag_ctrl[100];
        !           889: };
        !           890: 
        !           891: /*
        !           892: **     Initial setup.
        !           893: **     Can be overriden at startup by a command line.
        !           894: */
        !           895: #define SCSI_NCR_DRIVER_SETUP                  \
        !           896: {                                              \
        !           897:        SCSI_NCR_SETUP_MASTER_PARITY,           \
        !           898:        SCSI_NCR_SETUP_SCSI_PARITY,             \
        !           899:        SCSI_NCR_SETUP_DISCONNECTION,           \
        !           900:        SCSI_NCR_SETUP_SPECIAL_FEATURES,        \
        !           901:        SCSI_NCR_SETUP_ULTRA_SCSI,              \
        !           902:        SCSI_NCR_SETUP_FORCE_SYNC_NEGO,         \
        !           903:        0,                                      \
        !           904:        0,                                      \
        !           905:        1,                                      \
        !           906:        0,                                      \
        !           907:        SCSI_NCR_SETUP_DEFAULT_TAGS,            \
        !           908:        SCSI_NCR_SETUP_DEFAULT_SYNC,            \
        !           909:        0x00,                                   \
        !           910:        7,                                      \
        !           911:        SCSI_NCR_SETUP_LED_PIN,                 \
        !           912:        1,                                      \
        !           913:        SCSI_NCR_SETUP_SETTLE_TIME,             \
        !           914:        SCSI_NCR_SETUP_DIFF_SUPPORT,            \
        !           915:        0,                                      \
        !           916:        1,                                      \
        !           917:        0,                                      \
        !           918:        0,                                      \
        !           919:        255,                                    \
        !           920:        0x00                                    \
        !           921: }
        !           922: 
        !           923: /*
        !           924: **     Boot fail safe setup.
        !           925: **     Override initial setup from boot command line:
        !           926: **     ncr53c8xx=safe:y
        !           927: */
        !           928: #define SCSI_NCR_DRIVER_SAFE_SETUP             \
        !           929: {                                              \
        !           930:        0,                                      \
        !           931:        1,                                      \
        !           932:        0,                                      \
        !           933:        0,                                      \
        !           934:        0,                                      \
        !           935:        0,                                      \
        !           936:        0,                                      \
        !           937:        0,                                      \
        !           938:        1,                                      \
        !           939:        2,                                      \
        !           940:        0,                                      \
        !           941:        255,                                    \
        !           942:        0x00,                                   \
        !           943:        255,                                    \
        !           944:        0,                                      \
        !           945:        0,                                      \
        !           946:        10,                                     \
        !           947:        1,                                      \
        !           948:        1,                                      \
        !           949:        1,                                      \
        !           950:        0,                                      \
        !           951:        0,                                      \
        !           952:        255                                     \
        !           953: }
        !           954: 
        !           955: #ifdef SCSI_NCR_NVRAM_SUPPORT
        !           956: /*
        !           957: **     Symbios NvRAM data format
        !           958: */
        !           959: #define SYMBIOS_NVRAM_SIZE 368
        !           960: #define SYMBIOS_NVRAM_ADDRESS 0x100
        !           961: 
        !           962: struct Symbios_nvram {
        !           963: /* Header 6 bytes */
        !           964:        u_short type;           /* 0x0000 */
        !           965:        u_short byte_count;     /* excluding header/trailer */
        !           966:        u_short checksum;
        !           967: 
        !           968: /* Controller set up 20 bytes */
        !           969:        u_char  v_major;        /* 0x00 */
        !           970:        u_char  v_minor;        /* 0x30 */
        !           971:        u_int32 boot_crc;
        !           972:        u_short flags;
        !           973: #define SYMBIOS_SCAM_ENABLE    (1)
        !           974: #define SYMBIOS_PARITY_ENABLE  (1<<1)
        !           975: #define SYMBIOS_VERBOSE_MSGS   (1<<2)
        !           976: #define SYMBIOS_CHS_MAPPING    (1<<3)
        !           977: #define SYMBIOS_NO_NVRAM       (1<<3)  /* ??? */
        !           978:        u_short flags1;
        !           979: #define SYMBIOS_SCAN_HI_LO     (1)
        !           980:        u_short term_state;
        !           981: #define SYMBIOS_TERM_CANT_PROGRAM      (0)
        !           982: #define SYMBIOS_TERM_ENABLED           (1)
        !           983: #define SYMBIOS_TERM_DISABLED          (2)
        !           984:        u_short rmvbl_flags;
        !           985: #define SYMBIOS_RMVBL_NO_SUPPORT       (0)
        !           986: #define SYMBIOS_RMVBL_BOOT_DEVICE      (1)
        !           987: #define SYMBIOS_RMVBL_MEDIA_INSTALLED  (2)
        !           988:        u_char  host_id;
        !           989:        u_char  num_hba;        /* 0x04 */
        !           990:        u_char  num_devices;    /* 0x10 */
        !           991:        u_char  max_scam_devices;       /* 0x04 */
        !           992:        u_char  num_valid_scam_devives; /* 0x00 */
        !           993:        u_char  rsvd;
        !           994: 
        !           995: /* Boot order 14 bytes * 4 */
        !           996:        struct Symbios_host{
        !           997:                u_short type;           /* 4:8xx / 0:nok */
        !           998:                u_short device_id;      /* PCI device id */
        !           999:                u_short vendor_id;      /* PCI vendor id */
        !          1000:                u_char  bus_nr;         /* PCI bus number */
        !          1001:                u_char  device_fn;      /* PCI device/function number << 3*/
        !          1002:                u_short word8;
        !          1003:                u_short flags;
        !          1004: #define        SYMBIOS_INIT_SCAN_AT_BOOT       (1)
        !          1005:                u_short io_port;        /* PCI io_port address */
        !          1006:        } host[4];
        !          1007: 
        !          1008: /* Targets 8 bytes * 16 */
        !          1009:        struct Symbios_target {
        !          1010:                u_char  flags;
        !          1011: #define SYMBIOS_DISCONNECT_ENABLE      (1)
        !          1012: #define SYMBIOS_SCAN_AT_BOOT_TIME      (1<<1)
        !          1013: #define SYMBIOS_SCAN_LUNS              (1<<2)
        !          1014: #define SYMBIOS_QUEUE_TAGS_ENABLED     (1<<3)
        !          1015:                u_char  rsvd;
        !          1016:                u_char  bus_width;      /* 0x08/0x10 */
        !          1017:                u_char  sync_offset;
        !          1018:                u_short sync_period;    /* 4*period factor */
        !          1019:                u_short timeout;
        !          1020:        } target[16];
        !          1021: /* Scam table 8 bytes * 4 */
        !          1022:        struct Symbios_scam {
        !          1023:                u_short id;
        !          1024:                u_short method;
        !          1025: #define SYMBIOS_SCAM_DEFAULT_METHOD    (0)
        !          1026: #define SYMBIOS_SCAM_DONT_ASSIGN       (1)
        !          1027: #define SYMBIOS_SCAM_SET_SPECIFIC_ID   (2)
        !          1028: #define SYMBIOS_SCAM_USE_ORDER_GIVEN   (3)
        !          1029:                u_short status;
        !          1030: #define SYMBIOS_SCAM_UNKNOWN           (0)
        !          1031: #define SYMBIOS_SCAM_DEVICE_NOT_FOUND  (1)
        !          1032: #define SYMBIOS_SCAM_ID_NOT_SET                (2)
        !          1033: #define SYMBIOS_SCAM_ID_VALID          (3)
        !          1034:                u_char  target_id;
        !          1035:                u_char  rsvd;
        !          1036:        } scam[4];
        !          1037: 
        !          1038:        u_char  spare_devices[15*8];
        !          1039:        u_char  trailer[6];             /* 0xfe 0xfe 0x00 0x00 0x00 0x00 */
        !          1040: };
        !          1041: typedef struct Symbios_nvram   Symbios_nvram;
        !          1042: typedef struct Symbios_host    Symbios_host;
        !          1043: typedef struct Symbios_target  Symbios_target;
        !          1044: typedef struct Symbios_scam    Symbios_scam;
        !          1045: 
        !          1046: /*
        !          1047: **     Tekram NvRAM data format.
        !          1048: */
        !          1049: #define TEKRAM_NVRAM_SIZE 64
        !          1050: #define TEKRAM_93C46_NVRAM_ADDRESS 0
        !          1051: #define TEKRAM_24C16_NVRAM_ADDRESS 0x40
        !          1052: 
        !          1053: struct Tekram_nvram {
        !          1054:        struct Tekram_target {
        !          1055:                u_char  flags;
        !          1056: #define        TEKRAM_PARITY_CHECK             (1)
        !          1057: #define TEKRAM_SYNC_NEGO               (1<<1)
        !          1058: #define TEKRAM_DISCONNECT_ENABLE       (1<<2)
        !          1059: #define        TEKRAM_START_CMD                (1<<3)
        !          1060: #define TEKRAM_TAGGED_COMMANDS         (1<<4)
        !          1061: #define TEKRAM_WIDE_NEGO               (1<<5)
        !          1062:                u_char  sync_index;
        !          1063:                u_short word2;
        !          1064:        } target[16];
        !          1065:        u_char  host_id;
        !          1066:        u_char  flags;
        !          1067: #define TEKRAM_MORE_THAN_2_DRIVES      (1)
        !          1068: #define TEKRAM_DRIVES_SUP_1GB          (1<<1)
        !          1069: #define        TEKRAM_RESET_ON_POWER_ON        (1<<2)
        !          1070: #define TEKRAM_ACTIVE_NEGATION         (1<<3)
        !          1071: #define TEKRAM_IMMEDIATE_SEEK          (1<<4)
        !          1072: #define        TEKRAM_SCAN_LUNS                (1<<5)
        !          1073: #define        TEKRAM_REMOVABLE_FLAGS          (3<<6)  /* 0: disable; 1: boot device; 2:all */
        !          1074:        u_char  boot_delay_index;
        !          1075:        u_char  max_tags_index;
        !          1076:        u_short flags1;
        !          1077: #define TEKRAM_F2_F6_ENABLED           (1)
        !          1078:        u_short spare[29];
        !          1079: };
        !          1080: typedef struct Tekram_nvram    Tekram_nvram;
        !          1081: typedef struct Tekram_target   Tekram_target;
        !          1082: 
        !          1083: #endif /* SCSI_NCR_NVRAM_SUPPORT */
        !          1084: 
        !          1085: /**************** ORIGINAL CONTENT of ncrreg.h from FreeBSD ******************/
        !          1086: 
        !          1087: /*-----------------------------------------------------------------
        !          1088: **
        !          1089: **     The ncr 53c810 register structure.
        !          1090: **
        !          1091: **-----------------------------------------------------------------
        !          1092: */
        !          1093: 
        !          1094: struct ncr_reg {
        !          1095: /*00*/  u_char    nc_scntl0;    /* full arb., ena parity, par->ATN  */
        !          1096: 
        !          1097: /*01*/  u_char    nc_scntl1;    /* no reset                         */
        !          1098:         #define   ISCON   0x10  /* connected to scsi               */
        !          1099:         #define   CRST    0x08  /* force reset                      */
        !          1100:         #define   IARB    0x02  /* immediate arbitration            */
        !          1101: 
        !          1102: /*02*/  u_char    nc_scntl2;    /* no disconnect expected           */
        !          1103:        #define   SDU     0x80  /* cmd: disconnect will raise error */
        !          1104:        #define   CHM     0x40  /* sta: chained mode                */
        !          1105:        #define   WSS     0x08  /* sta: wide scsi send           [W]*/
        !          1106:        #define   WSR     0x01  /* sta: wide scsi received       [W]*/
        !          1107: 
        !          1108: /*03*/  u_char    nc_scntl3;    /* cnf system clock dependent       */
        !          1109:        #define   EWS     0x08  /* cmd: enable wide scsi         [W]*/
        !          1110:        #define   ULTRA   0x80  /* cmd: ULTRA enable                */
        !          1111:                                /* bits 0-2, 7 rsvd for C1010       */
        !          1112: 
        !          1113: /*04*/  u_char    nc_scid;     /* cnf host adapter scsi address    */
        !          1114:        #define   RRE     0x40  /* r/w:e enable response to resel.  */
        !          1115:        #define   SRE     0x20  /* r/w:e enable response to select  */
        !          1116: 
        !          1117: /*05*/  u_char    nc_sxfer;    /* ### Sync speed and count         */
        !          1118:                                /* bits 6-7 rsvd for C1010          */
        !          1119: 
        !          1120: /*06*/  u_char    nc_sdid;     /* ### Destination-ID               */
        !          1121: 
        !          1122: /*07*/  u_char    nc_gpreg;    /* ??? IO-Pins                      */
        !          1123: 
        !          1124: /*08*/  u_char    nc_sfbr;     /* ### First byte in phase          */
        !          1125: 
        !          1126: /*09*/  u_char    nc_socl;
        !          1127:        #define   CREQ    0x80  /* r/w: SCSI-REQ                    */
        !          1128:        #define   CACK    0x40  /* r/w: SCSI-ACK                    */
        !          1129:        #define   CBSY    0x20  /* r/w: SCSI-BSY                    */
        !          1130:        #define   CSEL    0x10  /* r/w: SCSI-SEL                    */
        !          1131:        #define   CATN    0x08  /* r/w: SCSI-ATN                    */
        !          1132:        #define   CMSG    0x04  /* r/w: SCSI-MSG                    */
        !          1133:        #define   CC_D    0x02  /* r/w: SCSI-C_D                    */
        !          1134:        #define   CI_O    0x01  /* r/w: SCSI-I_O                    */
        !          1135: 
        !          1136: /*0a*/  u_char    nc_ssid;
        !          1137: 
        !          1138: /*0b*/  u_char    nc_sbcl;
        !          1139: 
        !          1140: /*0c*/  u_char    nc_dstat;
        !          1141:         #define   DFE     0x80  /* sta: dma fifo empty              */
        !          1142:         #define   MDPE    0x40  /* int: master data parity error    */
        !          1143:         #define   BF      0x20  /* int: script: bus fault           */
        !          1144:         #define   ABRT    0x10  /* int: script: command aborted     */
        !          1145:         #define   SSI     0x08  /* int: script: single step         */
        !          1146:         #define   SIR     0x04  /* int: script: interrupt instruct. */
        !          1147:         #define   IID     0x01  /* int: script: illegal instruct.   */
        !          1148: 
        !          1149: /*0d*/  u_char    nc_sstat0;
        !          1150:         #define   ILF     0x80  /* sta: data in SIDL register lsb   */
        !          1151:         #define   ORF     0x40  /* sta: data in SODR register lsb   */
        !          1152:         #define   OLF     0x20  /* sta: data in SODL register lsb   */
        !          1153:         #define   AIP     0x10  /* sta: arbitration in progress     */
        !          1154:         #define   LOA     0x08  /* sta: arbitration lost            */
        !          1155:         #define   WOA     0x04  /* sta: arbitration won             */
        !          1156:         #define   IRST    0x02  /* sta: scsi reset signal           */
        !          1157:         #define   SDP     0x01  /* sta: scsi parity signal          */
        !          1158: 
        !          1159: /*0e*/  u_char    nc_sstat1;
        !          1160:        #define   FF3210  0xf0  /* sta: bytes in the scsi fifo      */
        !          1161: 
        !          1162: /*0f*/  u_char    nc_sstat2;
        !          1163:         #define   ILF1    0x80  /* sta: data in SIDL register msb[W]*/
        !          1164:         #define   ORF1    0x40  /* sta: data in SODR register msb[W]*/
        !          1165:         #define   OLF1    0x20  /* sta: data in SODL register msb[W]*/
        !          1166:         #define   DM      0x04  /* sta: DIFFSENS mismatch (895/6 only) */
        !          1167:         #define   LDSC    0x02  /* sta: disconnect & reconnect      */
        !          1168: 
        !          1169: /*10*/  u_char    nc_dsa;      /* --> Base page                    */
        !          1170: /*11*/  u_char    nc_dsa1;
        !          1171: /*12*/  u_char    nc_dsa2;
        !          1172: /*13*/  u_char    nc_dsa3;
        !          1173: 
        !          1174: /*14*/  u_char    nc_istat;    /* --> Main Command and status      */
        !          1175:         #define   CABRT   0x80  /* cmd: abort current operation     */
        !          1176:         #define   SRST    0x40  /* mod: reset chip                  */
        !          1177:         #define   SIGP    0x20  /* r/w: message from host to ncr    */
        !          1178:         #define   SEM     0x10  /* r/w: message between host + ncr  */
        !          1179:         #define   CON     0x08  /* sta: connected to scsi           */
        !          1180:         #define   INTF    0x04  /* sta: int on the fly (reset by wr)*/
        !          1181:         #define   SIP     0x02  /* sta: scsi-interrupt              */
        !          1182:         #define   DIP     0x01  /* sta: host/script interrupt       */
        !          1183: 
        !          1184: /*15*/  u_char    nc_istat1;   /* 896 only */
        !          1185: /*16*/  u_char    nc_mbox0;    /* 896 only */
        !          1186: /*17*/  u_char    nc_mbox1;    /* 896 only */
        !          1187: 
        !          1188: /*18*/ u_char    nc_ctest0;
        !          1189: /*19*/  u_char    nc_ctest1;
        !          1190: 
        !          1191: /*1a*/  u_char    nc_ctest2;
        !          1192:        #define   CSIGP   0x40
        !          1193:                                /* bits 0-2,7 rsvd for C1010        */
        !          1194: 
        !          1195: /*1b*/  u_char    nc_ctest3;
        !          1196:        #define   FLF     0x08  /* cmd: flush dma fifo              */
        !          1197:        #define   CLF     0x04  /* cmd: clear dma fifo              */
        !          1198:        #define   FM      0x02  /* mod: fetch pin mode              */
        !          1199:        #define   WRIE    0x01  /* mod: write and invalidate enable */
        !          1200:                                /* bits 4-7 rsvd for C1010          */
        !          1201: 
        !          1202: /*1c*/  u_int32    nc_temp;    /* ### Temporary stack              */
        !          1203: 
        !          1204: /*20*/ u_char    nc_dfifo;
        !          1205: /*21*/  u_char    nc_ctest4;
        !          1206:        #define   BDIS    0x80  /* mod: burst disable               */
        !          1207:        #define   MPEE    0x08  /* mod: master parity error enable  */
        !          1208: 
        !          1209: /*22*/  u_char    nc_ctest5;
        !          1210:        #define   DFS     0x20  /* mod: dma fifo size               */
        !          1211:                                /* bits 0-1, 3-7 rsvd for C1010          */
        !          1212: /*23*/  u_char    nc_ctest6;
        !          1213: 
        !          1214: /*24*/  u_int32    nc_dbc;     /* ### Byte count and command       */
        !          1215: /*28*/  u_int32    nc_dnad;    /* ### Next command register        */
        !          1216: /*2c*/  u_int32    nc_dsp;     /* --> Script Pointer               */
        !          1217: /*30*/  u_int32    nc_dsps;    /* --> Script pointer save/opcode#2 */
        !          1218: 
        !          1219: /*34*/  u_char     nc_scratcha;  /* Temporary register a            */
        !          1220: /*35*/  u_char     nc_scratcha1;
        !          1221: /*36*/  u_char     nc_scratcha2;
        !          1222: /*37*/  u_char     nc_scratcha3;
        !          1223: 
        !          1224: /*38*/  u_char    nc_dmode;
        !          1225:        #define   BL_2    0x80  /* mod: burst length shift value +2 */
        !          1226:        #define   BL_1    0x40  /* mod: burst length shift value +1 */
        !          1227:        #define   ERL     0x08  /* mod: enable read line            */
        !          1228:        #define   ERMP    0x04  /* mod: enable read multiple        */
        !          1229:        #define   BOF     0x02  /* mod: burst op code fetch         */
        !          1230: 
        !          1231: /*39*/  u_char    nc_dien;
        !          1232: /*3a*/  u_char    nc_sbr;
        !          1233: 
        !          1234: /*3b*/  u_char    nc_dcntl;    /* --> Script execution control     */
        !          1235:        #define   CLSE    0x80  /* mod: cache line size enable      */
        !          1236:        #define   PFF     0x40  /* cmd: pre-fetch flush             */
        !          1237:        #define   PFEN    0x20  /* mod: pre-fetch enable            */
        !          1238:        #define   SSM     0x10  /* mod: single step mode            */
        !          1239:        #define   IRQM    0x08  /* mod: irq mode (1 = totem pole !) */
        !          1240:        #define   STD     0x04  /* cmd: start dma mode              */
        !          1241:        #define   IRQD    0x02  /* mod: irq disable                 */
        !          1242:        #define   NOCOM   0x01  /* cmd: protect sfbr while reselect */
        !          1243:                                /* bits 0-1 rsvd for C1010          */
        !          1244: 
        !          1245: /*3c*/  u_int32    nc_adder;
        !          1246: 
        !          1247: /*40*/  u_short   nc_sien;     /* -->: interrupt enable            */
        !          1248: /*42*/  u_short   nc_sist;     /* <--: interrupt status            */
        !          1249:         #define   SBMC    0x1000/* sta: SCSI Bus Mode Change (895/6 only) */
        !          1250:         #define   STO     0x0400/* sta: timeout (select)            */
        !          1251:         #define   GEN     0x0200/* sta: timeout (general)           */
        !          1252:         #define   HTH     0x0100/* sta: timeout (handshake)         */
        !          1253:         #define   MA      0x80  /* sta: phase mismatch              */
        !          1254:         #define   CMP     0x40  /* sta: arbitration complete        */
        !          1255:         #define   SEL     0x20  /* sta: selected by another device  */
        !          1256:         #define   RSL     0x10  /* sta: reselected by another device*/
        !          1257:         #define   SGE     0x08  /* sta: gross error (over/underflow)*/
        !          1258:         #define   UDC     0x04  /* sta: unexpected disconnect       */
        !          1259:         #define   RST     0x02  /* sta: scsi bus reset detected     */
        !          1260:         #define   PAR     0x01  /* sta: scsi parity error           */
        !          1261: 
        !          1262: /*44*/  u_char    nc_slpar;
        !          1263: /*45*/  u_char    nc_swide;
        !          1264: /*46*/  u_char    nc_macntl;
        !          1265: /*47*/  u_char    nc_gpcntl;
        !          1266: /*48*/  u_char    nc_stime0;    /* cmd: timeout for select&handshake*/
        !          1267: /*49*/  u_char    nc_stime1;    /* cmd: timeout user defined        */
        !          1268: /*4a*/  u_short   nc_respid;    /* sta: Reselect-IDs                */
        !          1269: 
        !          1270: /*4c*/  u_char    nc_stest0;
        !          1271: 
        !          1272: /*4d*/  u_char    nc_stest1;
        !          1273:        #define   SCLK    0x80  /* Use the PCI clock as SCSI clock      */
        !          1274:        #define   DBLEN   0x08  /* clock doubler running                */
        !          1275:        #define   DBLSEL  0x04  /* clock doubler selected               */
        !          1276:   
        !          1277: 
        !          1278: /*4e*/  u_char    nc_stest2;
        !          1279:        #define   ROF     0x40  /* reset scsi offset (after gross error!) */
        !          1280:        #define   EXT     0x02  /* extended filtering                     */
        !          1281: 
        !          1282: /*4f*/  u_char    nc_stest3;
        !          1283:        #define   TE     0x80   /* c: tolerAnt enable */
        !          1284:        #define   HSC    0x20   /* c: Halt SCSI Clock */
        !          1285:        #define   CSF    0x02   /* c: clear scsi fifo */
        !          1286: 
        !          1287: /*50*/  u_short   nc_sidl;     /* Lowlevel: latched from scsi data */
        !          1288: /*52*/  u_char    nc_stest4;
        !          1289:        #define   SMODE  0xc0   /* SCSI bus mode      (895/6 only) */
        !          1290:        #define    SMODE_HVD 0x40       /* High Voltage Differential       */
        !          1291:        #define    SMODE_SE  0x80       /* Single Ended                    */
        !          1292:        #define    SMODE_LVD 0xc0       /* Low Voltage Differential        */
        !          1293:        #define   LCKFRQ 0x20   /* Frequency Lock (895/6 only)     */
        !          1294:                                /* bits 0-5 rsvd for C1010          */
        !          1295: 
        !          1296: /*53*/  u_char    nc_53_;
        !          1297: /*54*/  u_short   nc_sodl;     /* Lowlevel: data out to scsi data  */
        !          1298: /*56*/ u_char    nc_ccntl0;    /* Chip Control 0 (896)             */
        !          1299:        #define   ENPMJ  0x80   /* Enable Phase Mismatch Jump       */
        !          1300:        #define   PMJCTL 0x40   /* Phase Mismatch Jump Control      */
        !          1301:        #define   ENNDJ  0x20   /* Enable Non Data PM Jump          */
        !          1302:        #define   DISFC  0x10   /* Disable Auto FIFO Clear          */
        !          1303:        #define   DILS   0x02   /* Disable Internal Load/Store      */
        !          1304:        #define   DPR    0x01   /* Disable Pipe Req                 */
        !          1305: 
        !          1306: /*57*/ u_char    nc_ccntl1;    /* Chip Control 1 (896)             */
        !          1307:        #define   ZMOD   0x80   /* High Impedance Mode              */
        !          1308:        #define   DIC    0x10   /* Disable Internal Cycles          */
        !          1309:        #define   DDAC   0x08   /* Disable Dual Address Cycle       */
        !          1310:        #define   XTIMOD 0x04   /* 64-bit Table Ind. Indexing Mode  */
        !          1311:        #define   EXTIBMV 0x02  /* Enable 64-bit Table Ind. BMOV    */
        !          1312:        #define   EXDBMV 0x01   /* Enable 64-bit Direct BMOV        */
        !          1313: 
        !          1314: /*58*/  u_short   nc_sbdl;     /* Lowlevel: data from scsi data    */
        !          1315: /*5a*/  u_short   nc_5a_;
        !          1316: 
        !          1317: /*5c*/  u_char    nc_scr0;     /* Working register B               */
        !          1318: /*5d*/  u_char    nc_scr1;     /*                                  */
        !          1319: /*5e*/  u_char    nc_scr2;     /*                                  */
        !          1320: /*5f*/  u_char    nc_scr3;     /*                                  */
        !          1321: 
        !          1322: /*60*/  u_char    nc_scrx[64]; /* Working register C-R             */
        !          1323: /*a0*/ u_int32   nc_mmrs;      /* Memory Move Read Selector        */
        !          1324: /*a4*/ u_int32   nc_mmws;      /* Memory Move Write Selector       */
        !          1325: /*a8*/ u_int32   nc_sfs;       /* Script Fetch Selector            */
        !          1326: /*ac*/ u_int32   nc_drs;       /* DSA Relative Selector            */
        !          1327: /*b0*/ u_int32   nc_sbms;      /* Static Block Move Selector       */
        !          1328: /*b4*/ u_int32   nc_dbms;      /* Dynamic Block Move Selector      */
        !          1329: /*b8*/ u_int32   nc_dnad64;    /* DMA Next Address 64              */
        !          1330: /*bc*/ u_short   nc_scntl4;    /* C1010 only                       */
        !          1331:        #define   U3EN   0x80   /* Enable Ultra 3                   */
        !          1332:        #define   AIPEN  0x40   /* Allow check upper byte lanes     */
        !          1333:        #define   XCLKH_DT 0x08 /* Extra clock of data hold on DT
        !          1334:                                        transfer edge               */
        !          1335:        #define   XCLKH_ST 0x04 /* Extra clock of data hold on ST
        !          1336:                                        transfer edge               */
        !          1337: 
        !          1338: /*be*/  u_char   nc_aipcntl0;  /* Epat Control 1 C1010 only        */
        !          1339: /*bf*/  u_char   nc_aipcntl1;  /* AIP Control C1010_66 Only        */
        !          1340: 
        !          1341: /*c0*/ u_int32   nc_pmjad1;    /* Phase Mismatch Jump Address 1    */
        !          1342: /*c4*/ u_int32   nc_pmjad2;    /* Phase Mismatch Jump Address 2    */
        !          1343: /*c8*/ u_char    nc_rbc;       /* Remaining Byte Count             */
        !          1344: /*c9*/ u_char    nc_rbc1;      /*                                  */
        !          1345: /*ca*/ u_char    nc_rbc2;      /*                                  */
        !          1346: /*cb*/ u_char    nc_rbc3;      /*                                  */
        !          1347: 
        !          1348: /*cc*/ u_char    nc_ua;        /* Updated Address                  */
        !          1349: /*cd*/ u_char    nc_ua1;       /*                                  */
        !          1350: /*ce*/ u_char    nc_ua2;       /*                                  */
        !          1351: /*cf*/ u_char    nc_ua3;       /*                                  */
        !          1352: /*d0*/ u_int32   nc_esa;       /* Entry Storage Address            */
        !          1353: /*d4*/ u_char    nc_ia;        /* Instruction Address              */
        !          1354: /*d5*/ u_char    nc_ia1;
        !          1355: /*d6*/ u_char    nc_ia2;
        !          1356: /*d7*/ u_char    nc_ia3;
        !          1357: /*d8*/ u_int32   nc_sbc;       /* SCSI Byte Count (3 bytes only)   */
        !          1358: /*dc*/ u_int32   nc_csbc;      /* Cumulative SCSI Byte Count       */
        !          1359: 
        !          1360:                                 /* Following for C1010 only         */
        !          1361: /*e0*/ u_short    nc_crcpad;    /* CRC Value                        */
        !          1362: /*e2*/ u_char     nc_crccntl0;  /* CRC control register             */
        !          1363:        #define   SNDCRC  0x10  /* Send CRC Request                 */
        !          1364: /*e3*/ u_char     nc_crccntl1;  /* CRC control register             */
        !          1365: /*e4*/ u_int32    nc_crcdata;   /* CRC data register                */ 
        !          1366: /*e8*/ u_int32   nc_e8_;       /* rsvd                             */
        !          1367: /*ec*/ u_int32   nc_ec_;       /* rsvd                             */
        !          1368: /*f0*/ u_short    nc_dfbc;      /* DMA FIFO byte count              */ 
        !          1369: 
        !          1370: };
        !          1371: 
        !          1372: /*-----------------------------------------------------------
        !          1373: **
        !          1374: **     Utility macros for the script.
        !          1375: **
        !          1376: **-----------------------------------------------------------
        !          1377: */
        !          1378: 
        !          1379: #define REGJ(p,r) (offsetof(struct ncr_reg, p ## r))
        !          1380: #define REG(r) REGJ (nc_, r)
        !          1381: 
        !          1382: typedef u_int32 ncrcmd;
        !          1383: 
        !          1384: /*-----------------------------------------------------------
        !          1385: **
        !          1386: **     SCSI phases
        !          1387: **
        !          1388: **     DT phases illegal for ncr driver.
        !          1389: **
        !          1390: **-----------------------------------------------------------
        !          1391: */
        !          1392: 
        !          1393: #define        SCR_DATA_OUT    0x00000000
        !          1394: #define        SCR_DATA_IN     0x01000000
        !          1395: #define        SCR_COMMAND     0x02000000
        !          1396: #define        SCR_STATUS      0x03000000
        !          1397: #define SCR_DT_DATA_OUT        0x04000000
        !          1398: #define SCR_DT_DATA_IN 0x05000000
        !          1399: #define SCR_MSG_OUT    0x06000000
        !          1400: #define SCR_MSG_IN      0x07000000
        !          1401: 
        !          1402: #define SCR_ILG_OUT    0x04000000
        !          1403: #define SCR_ILG_IN     0x05000000
        !          1404: 
        !          1405: /*-----------------------------------------------------------
        !          1406: **
        !          1407: **     Data transfer via SCSI.
        !          1408: **
        !          1409: **-----------------------------------------------------------
        !          1410: **
        !          1411: **     MOVE_ABS (LEN)
        !          1412: **     <<start address>>
        !          1413: **
        !          1414: **     MOVE_IND (LEN)
        !          1415: **     <<dnad_offset>>
        !          1416: **
        !          1417: **     MOVE_TBL
        !          1418: **     <<dnad_offset>>
        !          1419: **
        !          1420: **-----------------------------------------------------------
        !          1421: */
        !          1422: 
        !          1423: #define OPC_MOVE          0x08000000
        !          1424: 
        !          1425: #define SCR_MOVE_ABS(l) ((0x00000000 | OPC_MOVE) | (l))
        !          1426: #define SCR_MOVE_IND(l) ((0x20000000 | OPC_MOVE) | (l))
        !          1427: #define SCR_MOVE_TBL     (0x10000000 | OPC_MOVE)
        !          1428: 
        !          1429: #define SCR_CHMOV_ABS(l) ((0x00000000) | (l))
        !          1430: #define SCR_CHMOV_IND(l) ((0x20000000) | (l))
        !          1431: #define SCR_CHMOV_TBL     (0x10000000)
        !          1432: 
        !          1433: struct scr_tblmove {
        !          1434:         u_int32  size;
        !          1435:         u_int32  addr;
        !          1436: };
        !          1437: 
        !          1438: /*-----------------------------------------------------------
        !          1439: **
        !          1440: **     Selection
        !          1441: **
        !          1442: **-----------------------------------------------------------
        !          1443: **
        !          1444: **     SEL_ABS | SCR_ID (0..15)    [ | REL_JMP]
        !          1445: **     <<alternate_address>>
        !          1446: **
        !          1447: **     SEL_TBL | << dnad_offset>>  [ | REL_JMP]
        !          1448: **     <<alternate_address>>
        !          1449: **
        !          1450: **-----------------------------------------------------------
        !          1451: */
        !          1452: 
        !          1453: #define        SCR_SEL_ABS     0x40000000
        !          1454: #define        SCR_SEL_ABS_ATN 0x41000000
        !          1455: #define        SCR_SEL_TBL     0x42000000
        !          1456: #define        SCR_SEL_TBL_ATN 0x43000000
        !          1457: 
        !          1458: struct scr_tblsel {
        !          1459:         u_char  sel_scntl4;    
        !          1460:         u_char  sel_sxfer;
        !          1461:         u_char  sel_id;
        !          1462:         u_char  sel_scntl3;
        !          1463: };
        !          1464: 
        !          1465: #define SCR_JMP_REL     0x04000000
        !          1466: #define SCR_ID(id)     (((u_int32)(id)) << 16)
        !          1467: 
        !          1468: /*-----------------------------------------------------------
        !          1469: **
        !          1470: **     Waiting for Disconnect or Reselect
        !          1471: **
        !          1472: **-----------------------------------------------------------
        !          1473: **
        !          1474: **     WAIT_DISC
        !          1475: **     dummy: <<alternate_address>>
        !          1476: **
        !          1477: **     WAIT_RESEL
        !          1478: **     <<alternate_address>>
        !          1479: **
        !          1480: **-----------------------------------------------------------
        !          1481: */
        !          1482: 
        !          1483: #define        SCR_WAIT_DISC   0x48000000
        !          1484: #define SCR_WAIT_RESEL  0x50000000
        !          1485: 
        !          1486: /*-----------------------------------------------------------
        !          1487: **
        !          1488: **     Bit Set / Reset
        !          1489: **
        !          1490: **-----------------------------------------------------------
        !          1491: **
        !          1492: **     SET (flags {|.. })
        !          1493: **
        !          1494: **     CLR (flags {|.. })
        !          1495: **
        !          1496: **-----------------------------------------------------------
        !          1497: */
        !          1498: 
        !          1499: #define SCR_SET(f)     (0x58000000 | (f))
        !          1500: #define SCR_CLR(f)     (0x60000000 | (f))
        !          1501: 
        !          1502: #define        SCR_CARRY       0x00000400
        !          1503: #define        SCR_TRG         0x00000200
        !          1504: #define        SCR_ACK         0x00000040
        !          1505: #define        SCR_ATN         0x00000008
        !          1506: 
        !          1507: 
        !          1508: 
        !          1509: 
        !          1510: /*-----------------------------------------------------------
        !          1511: **
        !          1512: **     Memory to memory move
        !          1513: **
        !          1514: **-----------------------------------------------------------
        !          1515: **
        !          1516: **     COPY (bytecount)
        !          1517: **     << source_address >>
        !          1518: **     << destination_address >>
        !          1519: **
        !          1520: **     SCR_COPY   sets the NO FLUSH option by default.
        !          1521: **     SCR_COPY_F does not set this option.
        !          1522: **
        !          1523: **     For chips which do not support this option,
        !          1524: **     ncr_copy_and_bind() will remove this bit.
        !          1525: **-----------------------------------------------------------
        !          1526: */
        !          1527: 
        !          1528: #define SCR_NO_FLUSH 0x01000000
        !          1529: 
        !          1530: #define SCR_COPY(n) (0xc0000000 | SCR_NO_FLUSH | (n))
        !          1531: #define SCR_COPY_F(n) (0xc0000000 | (n))
        !          1532: 
        !          1533: /*-----------------------------------------------------------
        !          1534: **
        !          1535: **     Register move and binary operations
        !          1536: **
        !          1537: **-----------------------------------------------------------
        !          1538: **
        !          1539: **     SFBR_REG (reg, op, data)        reg  = SFBR op data
        !          1540: **     << 0 >>
        !          1541: **
        !          1542: **     REG_SFBR (reg, op, data)        SFBR = reg op data
        !          1543: **     << 0 >>
        !          1544: **
        !          1545: **     REG_REG  (reg, op, data)        reg  = reg op data
        !          1546: **     << 0 >>
        !          1547: **
        !          1548: **-----------------------------------------------------------
        !          1549: **     On 810A, 860, 825A, 875, 895 and 896 chips the content 
        !          1550: **     of SFBR register can be used as data (SCR_SFBR_DATA).
        !          1551: **     The 896 has additionnal IO registers starting at 
        !          1552: **     offset 0x80. Bit 7 of register offset is stored in 
        !          1553: **     bit 7 of the SCRIPTS instruction first DWORD.
        !          1554: **-----------------------------------------------------------
        !          1555: */
        !          1556: 
        !          1557: #define SCR_REG_OFS(ofs) ((((ofs) & 0x7f) << 16ul) + ((ofs) & 0x80)) 
        !          1558: 
        !          1559: #define SCR_SFBR_REG(reg,op,data) \
        !          1560:         (0x68000000 | (SCR_REG_OFS(REG(reg))) | (op) | (((data)&0xff)<<8ul))
        !          1561: 
        !          1562: #define SCR_REG_SFBR(reg,op,data) \
        !          1563:         (0x70000000 | (SCR_REG_OFS(REG(reg))) | (op) | (((data)&0xff)<<8ul))
        !          1564: 
        !          1565: #define SCR_REG_REG(reg,op,data) \
        !          1566:         (0x78000000 | (SCR_REG_OFS(REG(reg))) | (op) | (((data)&0xff)<<8ul))
        !          1567: 
        !          1568: 
        !          1569: #define      SCR_LOAD   0x00000000
        !          1570: #define      SCR_SHL    0x01000000
        !          1571: #define      SCR_OR     0x02000000
        !          1572: #define      SCR_XOR    0x03000000
        !          1573: #define      SCR_AND    0x04000000
        !          1574: #define      SCR_SHR    0x05000000
        !          1575: #define      SCR_ADD    0x06000000
        !          1576: #define      SCR_ADDC   0x07000000
        !          1577: 
        !          1578: #define      SCR_SFBR_DATA   (0x00800000>>8ul) /* Use SFBR as data */
        !          1579: 
        !          1580: /*-----------------------------------------------------------
        !          1581: **
        !          1582: **     FROM_REG (reg)            SFBR = reg
        !          1583: **     << 0 >>
        !          1584: **
        !          1585: **     TO_REG   (reg)            reg  = SFBR
        !          1586: **     << 0 >>
        !          1587: **
        !          1588: **     LOAD_REG (reg, data)      reg  = <data>
        !          1589: **     << 0 >>
        !          1590: **
        !          1591: **     LOAD_SFBR(data)           SFBR = <data>
        !          1592: **     << 0 >>
        !          1593: **
        !          1594: **-----------------------------------------------------------
        !          1595: */
        !          1596: 
        !          1597: #define        SCR_FROM_REG(reg) \
        !          1598:        SCR_REG_SFBR(reg,SCR_OR,0)
        !          1599: 
        !          1600: #define        SCR_TO_REG(reg) \
        !          1601:        SCR_SFBR_REG(reg,SCR_OR,0)
        !          1602: 
        !          1603: #define        SCR_LOAD_REG(reg,data) \
        !          1604:        SCR_REG_REG(reg,SCR_LOAD,data)
        !          1605: 
        !          1606: #define SCR_LOAD_SFBR(data) \
        !          1607:         (SCR_REG_SFBR (gpreg, SCR_LOAD, data))
        !          1608: 
        !          1609: /*-----------------------------------------------------------
        !          1610: **
        !          1611: **     LOAD  from memory   to register.
        !          1612: **     STORE from register to memory.
        !          1613: **
        !          1614: **     Only supported by 810A, 860, 825A, 875, 895 and 896.
        !          1615: **
        !          1616: **-----------------------------------------------------------
        !          1617: **
        !          1618: **     LOAD_ABS (LEN)
        !          1619: **     <<start address>>
        !          1620: **
        !          1621: **     LOAD_REL (LEN)        (DSA relative)
        !          1622: **     <<dsa_offset>>
        !          1623: **
        !          1624: **-----------------------------------------------------------
        !          1625: */
        !          1626: 
        !          1627: #define SCR_REG_OFS2(ofs) (((ofs) & 0xff) << 16ul)
        !          1628: #define SCR_NO_FLUSH2  0x02000000
        !          1629: #define SCR_DSA_REL2   0x10000000
        !          1630: 
        !          1631: #define SCR_LOAD_R(reg, how, n) \
        !          1632:         (0xe1000000 | how | (SCR_REG_OFS2(REG(reg))) | (n))
        !          1633: 
        !          1634: #define SCR_STORE_R(reg, how, n) \
        !          1635:         (0xe0000000 | how | (SCR_REG_OFS2(REG(reg))) | (n))
        !          1636: 
        !          1637: #define SCR_LOAD_ABS(reg, n)   SCR_LOAD_R(reg, SCR_NO_FLUSH2, n)
        !          1638: #define SCR_LOAD_REL(reg, n)   SCR_LOAD_R(reg, SCR_NO_FLUSH2|SCR_DSA_REL2, n)
        !          1639: #define SCR_LOAD_ABS_F(reg, n) SCR_LOAD_R(reg, 0, n)
        !          1640: #define SCR_LOAD_REL_F(reg, n) SCR_LOAD_R(reg, SCR_DSA_REL2, n)
        !          1641: 
        !          1642: #define SCR_STORE_ABS(reg, n)  SCR_STORE_R(reg, SCR_NO_FLUSH2, n)
        !          1643: #define SCR_STORE_REL(reg, n)  SCR_STORE_R(reg, SCR_NO_FLUSH2|SCR_DSA_REL2,n)
        !          1644: #define SCR_STORE_ABS_F(reg, n)        SCR_STORE_R(reg, 0, n)
        !          1645: #define SCR_STORE_REL_F(reg, n)        SCR_STORE_R(reg, SCR_DSA_REL2, n)
        !          1646: 
        !          1647: 
        !          1648: /*-----------------------------------------------------------
        !          1649: **
        !          1650: **     Waiting for Disconnect or Reselect
        !          1651: **
        !          1652: **-----------------------------------------------------------
        !          1653: **
        !          1654: **     JUMP            [ | IFTRUE/IFFALSE ( ... ) ]
        !          1655: **     <<address>>
        !          1656: **
        !          1657: **     JUMPR           [ | IFTRUE/IFFALSE ( ... ) ]
        !          1658: **     <<distance>>
        !          1659: **
        !          1660: **     CALL            [ | IFTRUE/IFFALSE ( ... ) ]
        !          1661: **     <<address>>
        !          1662: **
        !          1663: **     CALLR           [ | IFTRUE/IFFALSE ( ... ) ]
        !          1664: **     <<distance>>
        !          1665: **
        !          1666: **     RETURN          [ | IFTRUE/IFFALSE ( ... ) ]
        !          1667: **     <<dummy>>
        !          1668: **
        !          1669: **     INT             [ | IFTRUE/IFFALSE ( ... ) ]
        !          1670: **     <<ident>>
        !          1671: **
        !          1672: **     INT_FLY         [ | IFTRUE/IFFALSE ( ... ) ]
        !          1673: **     <<ident>>
        !          1674: **
        !          1675: **     Conditions:
        !          1676: **          WHEN (phase)
        !          1677: **          IF   (phase)
        !          1678: **          CARRYSET
        !          1679: **          DATA (data, mask)
        !          1680: **
        !          1681: **-----------------------------------------------------------
        !          1682: */
        !          1683: 
        !          1684: #define SCR_NO_OP       0x80000000
        !          1685: #define SCR_JUMP        0x80080000
        !          1686: #define SCR_JUMP64      0x80480000
        !          1687: #define SCR_JUMPR       0x80880000
        !          1688: #define SCR_CALL        0x88080000
        !          1689: #define SCR_CALLR       0x88880000
        !          1690: #define SCR_RETURN      0x90080000
        !          1691: #define SCR_INT         0x98080000
        !          1692: #define SCR_INT_FLY     0x98180000
        !          1693: 
        !          1694: #define IFFALSE(arg)   (0x00080000 | (arg))
        !          1695: #define IFTRUE(arg)    (0x00000000 | (arg))
        !          1696: 
        !          1697: #define WHEN(phase)    (0x00030000 | (phase))
        !          1698: #define IF(phase)      (0x00020000 | (phase))
        !          1699: 
        !          1700: #define DATA(D)        (0x00040000 | ((D) & 0xff))
        !          1701: #define MASK(D,M)      (0x00040000 | (((M ^ 0xff) & 0xff) << 8ul)|((D) & 0xff))
        !          1702: 
        !          1703: #define CARRYSET       (0x00200000)
        !          1704: 
        !          1705: /*-----------------------------------------------------------
        !          1706: **
        !          1707: **     SCSI  constants.
        !          1708: **
        !          1709: **-----------------------------------------------------------
        !          1710: */
        !          1711: 
        !          1712: /*
        !          1713: **     Messages
        !          1714: */
        !          1715: 
        !          1716: #define        M_COMPLETE      (0x00)
        !          1717: #define        M_EXTENDED      (0x01)
        !          1718: #define        M_SAVE_DP       (0x02)
        !          1719: #define        M_RESTORE_DP    (0x03)
        !          1720: #define        M_DISCONNECT    (0x04)
        !          1721: #define        M_ID_ERROR      (0x05)
        !          1722: #define        M_ABORT         (0x06)
        !          1723: #define        M_REJECT        (0x07)
        !          1724: #define        M_NOOP          (0x08)
        !          1725: #define        M_PARITY        (0x09)
        !          1726: #define        M_LCOMPLETE     (0x0a)
        !          1727: #define        M_FCOMPLETE     (0x0b)
        !          1728: #define        M_RESET         (0x0c)
        !          1729: #define        M_ABORT_TAG     (0x0d)
        !          1730: #define        M_CLEAR_QUEUE   (0x0e)
        !          1731: #define        M_INIT_REC      (0x0f)
        !          1732: #define        M_REL_REC       (0x10)
        !          1733: #define        M_TERMINATE     (0x11)
        !          1734: #define        M_SIMPLE_TAG    (0x20)
        !          1735: #define        M_HEAD_TAG      (0x21)
        !          1736: #define        M_ORDERED_TAG   (0x22)
        !          1737: #define        M_IGN_RESIDUE   (0x23)
        !          1738: #define        M_IDENTIFY      (0x80)
        !          1739: 
        !          1740: #define        M_X_MODIFY_DP   (0x00)
        !          1741: #define        M_X_SYNC_REQ    (0x01)
        !          1742: #define        M_X_WIDE_REQ    (0x03)
        !          1743: #define        M_X_PPR_REQ     (0x04)
        !          1744: 
        !          1745: /*
        !          1746: **     Status
        !          1747: */
        !          1748: 
        !          1749: #define        S_GOOD          (0x00)
        !          1750: #define        S_CHECK_COND    (0x02)
        !          1751: #define        S_COND_MET      (0x04)
        !          1752: #define        S_BUSY          (0x08)
        !          1753: #define        S_INT           (0x10)
        !          1754: #define        S_INT_COND_MET  (0x14)
        !          1755: #define        S_CONFLICT      (0x18)
        !          1756: #define        S_TERMINATED    (0x20)
        !          1757: #define        S_QUEUE_FULL    (0x28)
        !          1758: #define        S_ILLEGAL       (0xff)
        !          1759: #define        S_SENSE         (0x80)
        !          1760: 
        !          1761: /*
        !          1762:  * End of ncrreg from FreeBSD
        !          1763:  */
        !          1764: 
        !          1765: #endif /* !defined HOSTS_C */
        !          1766: 
        !          1767: #endif /* defined SYM53C8XX_DEFS_H */

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