;**; configregs.i ;******************************************************** ; ; register and bit definitions for expansion boards ; ; Copyright (C) 1985, Commodore-Amiga, Inc., All rights reserved. ; ; $Header: configregs.i,v 33.2 86/05/04 23:40:52 neil Exp $ ; ; $Locker: $ ; ; $Log: configregs.i,v $ ; Revision 33.2 86/05/04 23:40:52 neil ; added diag area ; ; Revision 33.1 86/04/01 12:17:22 neil ; First version ; ; ;*************************************************************************** IFND LIBRARIES_CONFIGREGS_I@ LIBRARIES_CONFIGREGS_I@ = 1 ;; Expansion boards are actually organized such that only one nibble per ;; word (16 bits) are valid information. This table is structured ;; as LOGICAL information. This means that it never corresponds ;; exactly with a physical implementation. ;* ;; The expansion space is logically split into two regions: ;; a rom portion and a control portion. The rom portion is ;; actually stored in one's complement form (except for the ;; er_type field). STRUCTURE ExpansionRom,0 UBYTE er_Type UBYTE er_Product UBYTE er_Flags UBYTE er_Reserved03 UWORD er_Manufacturer ULONG er_SerialNumber UWORD er_InitDiagVec UBYTE er_Reserved0c UBYTE er_Reserved0d UBYTE er_Reserved0e UBYTE er_Reserved0f LABEL ExpansionRom_SIZEOF STRUCTURE ExpansionControl,0 UBYTE ec_Interrupt ; interrupt control register UBYTE ec_Reserved11 UBYTE ec_BaseAddress ; set new config address UBYTE ec_Shutup ; don't respond, pass config out UBYTE ec_Reserved14 UBYTE ec_Reserved15 UBYTE ec_Reserved16 UBYTE ec_Reserved17 UBYTE ec_Reserved18 UBYTE ec_Reserved19 UBYTE ec_Reserved1a UBYTE ec_Reserved1b UBYTE ec_Reserved1c UBYTE ec_Reserved1d UBYTE ec_Reserved1e UBYTE ec_Reserved1f LABEL ExpansionControl_SIZEOF ;* ;; many of the constants below consist of a triplet of equivalent ;; definitions: xxMASK is a bit mask of those bits that matter. ;; xxBIT is the starting bit number of the field. xxSIZE is the ;; number of bits that make up the definition. This method is ;; used when the field is larger than one bit. ;* ;; If the field is only one bit wide then the xxB_xx and xxF_xx convention ;; is used (xxB_xx is the bit number, and xxF_xx is mask of the bit). ;* ;; manifest constants ;/ E_SLOTSIZE EQU $10000 E_SLOTMASK EQU $ffff E_SLOTSHIFT EQU 16 ;; these define the two free regions of Zorro memory space. ;; THESE MAY WELL CHANGE FOR FUTURE PRODUCTS| E_EXPANSIONBASE EQU $e80000 E_EXPANSIONSIZE EQU $080000 E_EXPANSIONSLOTS EQU 8 E_MEMORYBASE EQU $200000 E_MEMORYSIZE EQU $800000 E_MEMORYSLOTS EQU 128 ;*****; ec_Type definitions ;/ ;; board type -- ignore "old style" boards ;/ ERT_TYPEMASK EQU $c0 ERT_TYPEBIT EQU 6 ERT_TYPESIZE EQU 2 ERT_NEWBOARD EQU $c0 ;; type field memory size ;/ ERT_MEMMASK EQU $07 ERT_MEMBIT EQU 0 ERT_MEMSIZE EQU 3 ;; other bits defined in type field ;/ ; BITDEF ERT,CHAINEDCONFIG,3 ERTB_CHAINEDCONFIG = 3 ERTF_CHAINEDCONFIG = 1<<3 ; BITDEF ERT,DIAGVALID,4 ERTB_DIAGVALID = 4 ERTF_DIAGVALID = 1<<4 ; BITDEF ERT,MEMLIST,5 ERTB_MEMLIST = 5 ERTF_MEMLIST = 1<<5 ;; er_Flags byte -- for those things that didn't fit into the type byte ;/ ; BITDEF ERF,MEMSPACE,7 ; wants to be in 8 meg space. Also ERFB_MEMSPACE = 7 ; wants to be in 8 meg space. Also ERFF_MEMSPACE = 1<<7 ; wants to be in 8 meg space. Also ; implies that board is moveable ; BITDEF ERF,NOSHUTUP,6 ; board can't be shut up. Must not ERFB_NOSHUTUP = 6 ; board can't be shut up. Must not ERFF_NOSHUTUP = 1<<6 ; board can't be shut up. Must not ; be a board. Must be a box that ; does not pass on the bus. ;; interrupt control register ;/ ; BITDEF ECI,INTENA,1 ECIB_INTENA = 1 ECIF_INTENA = 1<<1 ; BITDEF ECI,RESET,3 ECIB_RESET = 3 ECIF_RESET = 1<<3 ; BITDEF ECI,INT2PEND,4 ECIB_INT2PEND = 4 ECIF_INT2PEND = 1<<4 ; BITDEF ECI,INT6PEND,5 ECIB_INT6PEND = 5 ECIF_INT6PEND = 1<<5 ; BITDEF ECI,INT7PEND,6 ECIB_INT7PEND = 6 ECIF_INT7PEND = 1<<6 ; BITDEF ECI,INTERRUPTING,7 ECIB_INTERRUPTING = 7 ECIF_INTERRUPTING = 1<<7 ;************************************************************************* ;* ;; these are the specifications for the diagnostic area. If the Diagnostic ;; Address Valid bit is set in the Board Type byte (the first byte in ;; expansion space) then the Diag Init vector contains a valid offset. ;* ;; The Diag Init vector is actually a word offset from the base of the ;; board. The resulting address points to the base of the DiagArea ;; structure. The structure may be physically implemented either four, ;; eight, or sixteen bits wide. The code will be copied out into ;; ram first before being called. ;* ;; The da_Size field, and both code offsets (da_DiagPoint and da_BootPoint) ;; are offsets from the diag area AFTER it has been copied into ram, and ;; "de-nibbleized" (if needed). Inotherwords, the size is the size of ;; the actual information, not how much address space is required to ;; store it. ;* ;; All bits are encoded with uninverted logic (e.g. 5 volts on the bus ;; is a logic one). ;* ;; If your board is to make use of the boot facility then it must leave ;; its config area available even after it has been configured. Your ;; boot vector will be called AFTER your board's final address has been ;; set. ;* ;************************************************************************* STRUCTURE DiagArea,0 UBYTE da_Config ; see below for definitions UBYTE da_Flags ; see below for definitions UWORD da_Size ; the size (in bytes) of the total diag area UWORD da_DiagPoint ; where to start for diagnostics, or zero UWORD da_BootPoint ; where to start for booting UWORD da_Name ; offset in diag area where a string ; identifier can be found (or zero if no ; identifier is present). UWORD da_Reserved01 ; two words of reserved data. must be zero. UWORD da_Reserved02 LABEL DiagArea_SIZEOF ; da_Config definitions DAC_BUSWIDTH EQU $C0 ; two bits for bus width DAC_NIBBLEWIDE EQU $00 DAC_BYTEWIDE EQU $40 DAC_WORDWIDE EQU $80 DAC_BOOTTIME EQU $30 ; two bits for when to boot DAC_NEVER EQU $00 ; obvious DAC_CONFIGTIME EQU $10 ; call da_BootPoint when first configing the ; the device DAC_BINDTIME EQU $20 ; run when binding drivers to boards ;* ;; These are the calling conventions for Diag or Boot area ;* ;; A7 -- points to at least 2K of stack ;; A6 -- ExecBase ;; A5 -- ExpansionBase ;; A3 -- your board's ConfigDev structure ;; A2 -- Base of diag/init area that was copied ;; A0 -- Base of your board ;* ;; Your board should return a value in D0. If this value is NULL, then ;; the diag/init area that was copied in will be returned to the free ;; memory pool. ;* ENDIF END