219 lines
7.1 KiB
Plaintext
219 lines
7.1 KiB
Plaintext
;
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; Hacks to match MacOS (most recent first):
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;
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; <Sys7.1> 8/3/92 Elliot make this change
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; 9/2/94 SuperMario ROM source dump (header preserved below)
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;
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;_________________________________________________________________________________________
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;
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; File: KbdInstall.a
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;
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; Contains: Code to ADB keyboard driver and code for installing keyboard driver as
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; well as for installing resources KMAP & KCHR.
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; This file is the code that is put in the System file's ADBS
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; resource ID = 2. The driver in this file overrides the driver in the ROM
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; and overrides any patches to the ROM driver. However, this driver
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; depends on the ADBProc in the ROM/Patch for the deallocation of the
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; keyboard data buffer at the beginning of ADBReinit.
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;
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; Written by: Joe Fontana, Ed Tecot and Gary G. Davidian
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;
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; Copyright: © 1986-1992 by Apple Computer, Inc., all rights reserved.
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;
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; Change History (most recent first):
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;
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; <2> 12/28/89 dba Used MAIN instead of PROC to get dead code stripping.
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; <1.1> 8/28/89 SES Removed references to nFiles.
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; <1.0> 11/16/88 CCH Added to EASE.
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; 3/2/87 EMT Fixed bug introduced above.
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; 2/9/87 EMT Permit KCHR to be overridden Check files of type 'KCAP' for
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; KMAPs Use default KMAP (0) as last resort Flush keyboard on
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; exit. Dispose of myself on exit.
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; 10/14/86 EMT Fix bug related to 6 Oct change above.
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; 10/6/86 EMT Data area can be set up by ROM.
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; 7/15/86 EMT Updated to use KCHR resource.
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; 6/25/86 EMT Created.
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;
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;_________________________________________________________________________________________
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LOAD 'StandardEqu.d'
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; Keyboard driver data
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KBufCount EQU 2
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KBufLen EQU 10 ; 8 bytes + length + inuse
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KMAPPtr EQU $00
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KeyBits EQU KMAPPtr+4
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KCHRPtr EQU KeyBits+(128/8)
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DeadKey EQU KCHRPtr+4
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KNoADBOp EQU DeadKey+4
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KNumBufs EQU KNoADBOp+1
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KFirstBuf EQU KNumBufs+1
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KbdDSize EQU KFirstBuf+(KBufCount*KBufLen)
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str EQU -$100
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iopb EQU str-ioFQElSize
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KISize EQU iopb
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; KMAP offsets
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KMid EQU $00
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KMtype EQU $01
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KMvers EQU KMid+2
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KMstart EQU KMvers+2
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KMnumEx EQU KMstart+128
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KMstEx EQU KMnumEx+2
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talkCmd EQU $0C ; Command for Talk R0
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keypadNorsi EQU $0E ; Handler ID for Norsi ergonomic keypad
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;_________________________________________________________________________________________
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;
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; Routine: KbdInst
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; Arguments: D0.B ADB Address
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; D1.B Device Type
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; Output: None
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; Function: Loads and locks the KMAP and KCHR resources used by the keyboard driver,
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; updates the ADB table and installs a new keyboard driver
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;
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; Side Effects: Trashes A0, A1, D0, D2
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;_________________________________________________________________________________________
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KbdInst MAIN EXPORT
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@Start MOVEM.L D3-D7/A2-A4, -(SP) ; Save the registers
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LINK A6, #KISize ; Save space on stack
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MOVE.W D0, D2 ; Save the ADB Address
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SUB.L #10, SP ; Allocate space on stack
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MOVE.L SP, A0 ; Pointer to data area
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_GetADBInfo
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ADDQ.L #2, SP ; Discard OrigAddr and DeviceType
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MOVE.L 4(SP), A1 ; Put the data address in A1
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MOVE.L A1, D0 ; See if it is a real address
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BNE.S KCHRLoad ; Buffer already allocated by ROM
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@AllocBuf MOVE.L #KbdDSize, D0 ; Amount of space needed for new keyboard drvr data
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_NewPtr ,SYS,CLEAR ; Get a pointer
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MOVE.L A0, A1 ; Save it in A1
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MOVE.B #KBufCount, KNumBufs(A1)
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KCHRLoad SUBQ.L #4, SP ; Make room for result
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MOVE.L #'KCHR', -(SP) ; ResType = KCHR
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CLR.W -(SP) ; theID = 0 (for now)
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MOVE.W #MapTrue, ROMMapInsert ; Use ROM resource if available
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_GetResource
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MOVE.L (SP), -(SP) ; Save the handle
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BEQ NoKCHR ; Skip if NIL
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_DetachResource ; Detach it
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MOVE.L (SP)+, A0
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_HLock ; Lock it down
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MOVE.L (A0), KCHRPtr(A1) ; Dereference and put away
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; We didn't find the KMAP in the system file or ROM, try the blessed folder
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MOVE.L #'KCAP', D3 ; File type
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CLR.W iopb+ioVRefNum(A6) ; The blessed folder
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CLR.W iopb+ioFDirIndex(A6) ; Initialize the index
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LEA str(A6), A0 ; Get the address of local string
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MOVE.L A0, iopb+ioFileName(A6) ; Put in iopb
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MOVEQ #0, D4 ; No resource file on first pass
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MOVE.W #MapTrue, ROMMapInsert ; Use ROM resource first time
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FindKMAP ;
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SUBQ.L #4, SP ; Make room for result
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MOVE.L #'KMAP', -(SP) ; ResType = KMAP
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CLR.W -(SP) ; Clear it out since Device Type is byte
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MOVE.B D1, 1(SP) ; theID = DeviceType
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_GetResource
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MOVE.L (SP), -(SP) ; Save the handle
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BNE.S GotKMAP ; Skip if not NIL
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ADDQ.L #8, SP ; Clean off the stack
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TST.W D4 ; File open?
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BEQ.S NextFile ; Nope, go on
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MOVE.W D4, -(SP) ; refNum
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_CloseResFile ;
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NextFile
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LEA iopb(A6), A0 ; Point to the block
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ADD.W #1, ioFDirIndex(A0) ; Increment the file index
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_GetFileInfo ;
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BMI.S NoMoreFiles ; That's all of them
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CMP.L ioFlUsrWds+fdType(A0), D3 ; Correct type?
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BNE.S NextFile ; Nope, try again
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SUBQ.L #2, SP ; Make room for result
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PEA str(A6) ; fileName
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_OpenResFile ;
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MOVE.W (SP)+, D4 ; Store the refNum
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BRA.S FindKMAP ;
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NoMoreFiles
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; All is not lost. We can try to find the default KMAP (0)
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SUBQ.L #4, SP ; Make room for result
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MOVE.L #'KMAP', -(SP) ; ResType = KMAP
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CLR.W -(SP) ; theID = 0
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MOVE.W #MapTrue, ROMMapInsert ; Use ROM resource if available
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_GetResource ;
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MOVE.L (SP), -(SP) ; Save the handle
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BEQ.S NoKMAP ; Skip if NIL
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GotKMAP
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; Assumes two copies of the resource handle are on the stack.
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_DetachResource ; Detach it
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MOVE.L (SP)+, A0
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_HLock ; Lock it down
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MOVE.L (A0), A0 ; Dereference it
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MOVE.L A0, KMAPPtr(A1) ; Put it away
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MOVE.B D1, KbdType ; Update KbdType to show this keyboard
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MOVE.B D2, KbdLast ; Same with KbdLast
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MOVE.W D2, D0 ; ADB Address
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MOVE.L A1, 4(SP) ; Replace the data address
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MOVE.L SP, A0 ; Pointer to two addresses
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_SetADBInfo
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TST.W D4 ; File open?
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BEQ.S Done ; Nope, go on
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MOVE.W D4, -(SP) ; refNum
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_CloseResFile ;
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BRA.S Done ;
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NoKMAP
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NoKCHR
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ADDQ.L #8, SP ; Discard unused parameters
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Done
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MOVE.W D2, D0 ; ADB Address
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LSL.W #4, D0 ; Put address in high nibble
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ADDQ.W #1, D0 ; Flush command
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CLR.L -(SP) ; No data address
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CLR.L -(SP) ; No completion routine
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CLR.L -(SP) ; No buffer
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MOVE.L SP, A0 ; Point to the block
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_ADBOp ; Flush the keyboard
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LEA 12(SP), SP ; Remove parameters from stack
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UNLK A6 ;
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MOVEM.L (SP)+, D3-D7/A2-A4 ; Restore the registers
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LEA KbdInst,A0
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_RecoverHandle
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_DisposeHandle
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RTS ; End KbdInst
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;_________________________________________________________________________________________
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;_________________________________________________________________________________________
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;_________________________________________________________________________________________
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END ;End file |