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Annotation of 43BSD/sys/stand/savax.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)savax.h     7.1 (Berkeley) 6/5/86
                      7:  */
                      8: 
                      9: /*
                     10:  * Standalone definitions peculiar to vaxen
                     11:  * The mba devices in the standalone system are addressed as 
                     12:  *     xx(unit,section)
                     13:  * where unit is
                     14:  *     8*mbanum+drive
                     15:  * The mbadrv macro gives the address of the device registers
                     16:  * for the specified unit; the mbamba macro gives the address of the
                     17:  * mba registers themselves.
                     18:  *
                     19:  * The uba devices are also addressed by giving, as unit,
                     20:  *     8*ubanum+drive
                     21:  * The ubamem macro converts a specified unibus address (ala pdp-11)
                     22:  * into a unibus memory address space address.
                     23:  */
                     24: 
                     25: int    cpu;            /* see <sys/cpu.h> */
                     26: 
                     27: #define        MAXNMBA 4
                     28: #define        MAXNUBA 4
                     29: struct mba_regs **mbaddr;
                     30: int    mbaact;
                     31: caddr_t        *umaddr;
                     32: struct uba_regs **ubaddr;
                     33: 
                     34: #define        UNITTOMBA(unit)         ((unit)>>3)
                     35: #define        UNITTODRIVE(unit)       ((unit)&07)
                     36: 
                     37: #define        mbamba(unit)            (mbaddr[UNITTOMBA(unit)])
                     38: #define        mbadrv(unit)            (&mbamba(unit)->mba_drv[UNITTODRIVE(unit)])
                     39: 
                     40: #define        UNITTOUBA(unit)         ((unit)>>3)
                     41: #define        ubauba(unit)            (ubaddr[UNITTOUBA(unit)])
                     42: #define        ubamem(unit, off)       ((umaddr[UNITTOUBA(unit)]+ubdevreg(off)))
                     43: 
                     44: #define        PHYSUBA0        0x20006000
                     45: #define        PHYSMBA0        0x20010000
                     46: #define        PHYSMBA1        0x20012000
                     47: #define        PHYSUMEM        0x2013e000
                     48: 
                     49: /*
                     50:  * RM03/5 (4-byte header plus CRC) format information:
                     51:  * codes for sector header word 1
                     52:  */
                     53: #define        HDR1_FMT22      0x1000  /* standard 16 bit format */
                     54: #define        HDR1_OKSCT      0xc000  /* sector ok */
                     55: #define        HDR1_SSF        0x2000  /* skip sector flag */

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