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175 lines
4.8 KiB
Plaintext
175 lines
4.8 KiB
Plaintext
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; File: IttInit.a
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;
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; Contains: Cousin Itt test INIT
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;
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; Written by: Paul Wolf
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;
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; Copyright: © 1990-1993 by Apple Computer, Inc., All rights reserved.
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;
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; This file is used in these builds:
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;
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; Change History (most recent first):
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;
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; <SM19> 11/23/93 DCB Don't call IttBoot if we don't install. Otherwise we are toast.
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; <SM18> 11/22/93 pdw Rolling in from <MCxx>.
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; <MC4> 11/9/93 pdw Removed call to InitSCSIBoot.
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; <SM17> 11/17/93 DCB Adding conditional around debugger so we can turn it on and off.
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; <SM16> 10/29/93 DCB Removing DebugStr for Grog release
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; <SM15> 10/14/93 pdw <MC> roll-in.
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; <MC3> 10/12/93 pdw Added support for Synchronous data transfers, rewrote State
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; Machine, message handling etc.
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; <MC2> 9/26/93 pdw Added call to InitSCSIBoot instead of fooling with PRAM.
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; <SM12> 9/9/93 pdw Lots of little changes. Name changes, temporary cache_bug
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; stuff.
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; <SM11> 7/20/93 pdw Fixed a stack alignment bug that was causing massive crashes if
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; SCSISelect was failing (down in that scanning routine at the
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; bottom).
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; <SM10> 6/29/93 pdw Massive checkins: Added code to scan devices that were loaded at
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; boot time so that they get entered into the VirtualID table.
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; <SM9> 5/26/93 PW Rolling in Ludwig changes.
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; <LW5> 5/21/93 PW Changing a _DebugStr to a DebugStr.
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; <SM6> 3/20/93 PW Rolled in Ludwig changes.
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; <LW3> 2/17/93 PW Removed SCSIDrvrs stuff - put it in InitBoot instead.
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; <LW2> 2/10/93 PW Cleaned up and added BootItt test after InitItt.
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; <SM5> 2/4/93 PW Got rid of useless stuff and calling BootItt after InitItt to
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; try to load drivers (and test BootItt).
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; <SM4> 1/31/93 PW Update from the latest of Ludwig. Also changes required for PDM
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; (will update Ludwig with these as needed myself).
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; <SM3> 11/9/92 fau Added support for Tempest (CycloneLC).
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; <SM2> 8/31/92 PW Moved debugger trap up so that if you skip over it, it won't do
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; the DetachResource.
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;
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;==========================================================================
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BLANKS ON ; assembler accepts spaces & tabs in operand field
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PRINT OFF ; do not send subsequent lines to the listing file
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; don't print includes
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MACHINE MC68020 ; '020-level
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LOAD 'StandardEqu.d' ; from StandardEqu.a and for building ROMs
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INCLUDE 'HardwarePrivateEqu.a'
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INCLUDE 'UniversalEqu.a' ; for TestFor
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INCLUDE 'SCSI.a' ;
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INCLUDE 'Debug.a' ; for NAME macro
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INCLUDE 'ACAM.a'
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INCLUDE 'XPTEqu.a' ; for globals
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PRINT ON ; do send subsequent lines to the listing files
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CASE OBJECT ; use case as specified in source text, C
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IttInit MAIN EXPORT
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IMPORT InitItt
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IMPORT ITTBOOT
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IF useINITDebugger THEN
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DebugStr 'Cmd-G to install, "g pc+2" to skip (SM)'
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ENDIF
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bsr.s @1
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nop
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rts
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@1
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link A6, #-4
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move.l a0, -(sp) ; load our resource handle for _DetachResource
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_DetachResource ; don't release resource space
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bsr InitItt
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tst.l d0 ; did it install?
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bne.b @exit ; nope get out of town.
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pea -4(A6)
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pea 1 ; only look for the startup device
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bsr.l ITTBOOT ; get the startup device's refnum in D0
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lea 8(sp),SP
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pea -4(A6)
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clr.l -(sp) ; load all drivers
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bsr.l ITTBOOT
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lea 8(sp),SP
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moveq.l #7, D3 ; D3 = scanning SCSI ID (saved from C)
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@lpTop
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btst D3, SCSIDrvrs ; was this guy touched in IttBoot?
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beq.s @lpBtm ; yes -> don't bother with it now
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bsr.s ReadBlock0
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@lpBtm
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dbra D3, @lpTop
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@exit
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unlk A6
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rts
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NAME 'IttInit'
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; ENDWITH
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ReadBlock0
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lea -512(sp), sp
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move.l sp, A1 ; A1 = buffer for read
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lea -scSize*2(sp), sp
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move.l sp, A2 ; A0 = TIB
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move.w #scInc, scOpcode+ 0*scSize(A2)
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move.l A1, scParam1+ 0*scSize(A2)
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move.l #512, scParam2+ 0*scSize(A2)
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move.w #scStop,scOpcode+ 1*scSize(A2)
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move.l #0, scParam1+ 1*scSize(A2)
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move.l #0, scParam2+ 1*scSize(A2)
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subq.l #2, sp
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_SCSIGet
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move.w (sp)+, D0
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bne.s @exit
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subq.l #2, sp
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move.w D3, -(sp)
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_SCSISelect
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move.w (sp)+, D0
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bne.s @exit
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subq.l #2, sp
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pea rdBlock0CDB
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move.w #6, -(sp)
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_SCSICmd
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move.w (sp)+, D0
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bne.s @complete
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subq.l #2, sp
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move.l A2, -(sp)
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_SCSIRead
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move.w (sp)+, D0
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@complete
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clr.l -(sp) ; room for status and message
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subq.l #2, sp ; room for result
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pea 2(sp) ; status word
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pea 4+2(sp) ; message word
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move.l #$60*20, -(sp) ; timeout (20 seconds)
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_SCSIComplete
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lea 6(sp), sp ; toss result/status/message
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@exit
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lea 512+scSize*2(sp), sp ; remove buffer/TIB but leave stat/msg
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rts
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rdBlock0CDB
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dc.b $08, $00, $00, $00, $01, $00
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ENDMAIN
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END
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