INCLUDE "exec/nodes.i"
INCLUDE "exec/resident.i"
INCLUDE "libraries/configvars.i"
+ INCLUDE "libraries/expansionbase.i"
; LVO's resolved by linking with library amiga.lib
XREF _LVOFindResident
ROMINFO EQU 0
-ROMOFFS EQU $0
+ROMOFFS EQU $4000
* ROMINFO defines whether you want the AUTOCONFIG information in
* the beginning of your ROM (set to 0 if you instead have PALS
* structures which require absolute pointers to ROM code or data.
*----- We'll store Version and Revision in serial number
-VERSION EQU 37 ; also the high word of serial number
-REVISION EQU 1 ; also the low word of serial number
+VERSION EQU 37 ; also the high word of serial number
+REVISION EQU 1 ; also the low word of serial number
* See the Addison-Wesley Amiga Hardware Manual for more info.
-
-MANUF_ID EQU 2011 ; CBM assigned (2011 for hackers only)
-PRODUCT_ID EQU 1 ; Manufacturer picks product ID
-
-BOARDSIZE EQU $10000 ; How much address space board decodes
-SIZE_FLAG EQU 3 ; Autoconfig 3-bit flag for BOARDSIZE
- ; 0=$800000(8meg) 4=$80000(512K)
- ; 1=$10000(64K) 5=$100000(1meg)
- ; 2=$20000(128K) 6=$200000(2meg)
- ; 3=$40000(256K) 7=$400000(4meg)
- CODE
-
-AllocMem EQU -198
+
+MANUF_ID EQU 2011 ; CBM assigned (2011 for hackers only)
+PRODUCT_ID EQU 1 ; Manufacturer picks product ID
+
+BOARDSIZE EQU $10000 ; How much address space board decodes
+SIZE_FLAG EQU 3 ; Autoconfig 3-bit flag for BOARDSIZE
+ ; 0=$800000(8meg) 4=$80000(512K)
+ ; 1=$10000(64K) 5=$100000(1meg)
+ ; 2=$20000(128K) 6=$200000(2meg)
+ ; 3=$40000(256K) 7=$400000(4meg)
+ CODE
+
+; Exec stuff
+AllocMem EQU -198
+InitResident EQU -102
+FindResident EQU -96
+OpenLibrary EQU -552
+CloseLibrary EQU -414
+OpenResource EQU -$1F2
+AddResource EQU -$1E6
+Enqueue EQU -$10E
+AddMemList EQU -$26A
+
+; Expansion stuff
+MakeDosNode EQU -144
+AddDosNode EQU -150
+AddBootNode EQU -36
+
+; PiSCSI stuff
+PiSCSIAddr1 EQU $80000010
+PiSCSIAddr2 EQU $80000014
+PiSCSIAddr3 EQU $80000018
+PiSCSIAddr4 EQU $8000001C
+PiSCSIDebugMe EQU $80000020
+PiSCSIDriver EQU $80000040
+PiSCSINextPart EQU $80000044
+PiSCSIGetPart EQU $80000048
+PiSCSIGetPrio EQU $8000004C
+PiSCSIGetFS EQU $80000060
+PiSCSINextFS EQU $80000064
+PiSCSICopyFS EQU $80000068
+PiSCSIFSSize EQU $8000006C
+PiSCSISetFSH EQU $80000070
+PiSCSILoadFS EQU $80000084
+PiSCSIGetFSInfo EQU $80000088
+PiSCSIDbg1 EQU $80001010
+PiSCSIDbg2 EQU $80001014
+PiSCSIDbg3 EQU $80001018
+PiSCSIDbg4 EQU $8000101C
+PiSCSIDbg5 EQU $80001020
+PiSCSIDbg6 EQU $80001024
+PiSCSIDbg7 EQU $80001028
+PiSCSIDbg8 EQU $8000102C
+PiSCSIDbgMsg EQU $80001000
******* RomStart ***************************************************
**********************************************************************
******* Strings referenced in Diag Copy area ************************
-DevName: dc.b '2nd.scsi.device',0 ; Name string
-IdString dc.b 'PISCSI ',48+VERSION,'.',48+REVISION ; Id string
+DevName: dc.b 'pi-scsi.device',0,0 ; Name string
+IdString dc.b 'PISCSI v0.8',0 ; Id string
-DosName: dc.b 'dos.library',0 ; DOS library name
+DosName: dc.b 'dos.library',0 ; DOS library name
+ExpansionName: dc.b "expansion.library",0
+LibName: dc.b "pi-scsi.device",0,0
DosDevName: dc.b 'ABC',0 ; dos device name for MakeDosNode()
; (dos device will be ABC:)
**********************************************************************
DiagEntry:
+ align 2
nop
nop
nop
- move.l #1,$80000020
-
- movea.l 4,a6
- move.l #$40000,d0
- moveq #0,d1
- jsr AllocMem(a6)
-
+ move.l #1,PiSCSIDebugMe
+ move.l a3,PiSCSIAddr1
nop
nop
- move.l d0,$80000040
-
- move.l d0,a1
- move.l #0,d1
- movea.l 4,a6
- add.l #$16e,a1
nop
nop
nop
- jsr -102(a6)
nop
- nop
- bra.s endpatches
-
lea patchTable-RomStart(a0),a1 ; find patch table
adda.l #ROMOFFS,a1 ; adjusting for ROMOFFS
******* BootEntry **************************************************
**********************************************************************
-BootEntry: lea DosName(PC),a1 ; 'dos.library',0
- jsr _LVOFindResident(a6) ; find the DOS resident tag
- move.l d0,a0 ; in order to bootstrap
- move.l RT_INIT(A0),a0 ; set vector to DOS INIT
- jsr (a0) ; and initialize DOS
+BootEntry:
+ align 2
+ move.l #2,PiSCSIDebugMe
+ lea DosName(pc),a1
+ jsr FindResident(a6)
+ tst.l d0
+ beq.b .End
+ move.l d0,a0
+ move.l RT_INIT(a0),a0
+ jmp (a0)
+.End
+ moveq.l #1,d0 ; indicate "success"
rts
*
; initialization routine, but will MakeDosNode then set up a
; BootNode, and Enqueue() on eb_MountList.
;
+ align 2
+ move.l a6,-(a7) ; Push A6 to stack
+ move.w #$00B8,$dff09a ; Disable interrupts during init
+ move.l #3,PiSCSIDebugMe
+ move.l a3,PiSCSIAddr4
+
+ movea.l 4,a6
+
+ move.l $10000040,d1
+ move.l #$feffeeff,$10000040
+ move.l $10000040,d0
+ cmp.l #$feffeeff,d0
+ bne.s NoZ3
+ move.l d1,$10000040
+
+ move.l #$8000000,d0 ; Add some Z3 fast RAM if it hasn't been moved (Kick 1.3)
+ move.l #$405,d1
+ move.l #10,d2
+ move.l #$10000000,a0
+ move.l #0,a1
+ jsr AddMemList(a6)
+
+NoZ3:
+ move.l #11,PiSCSIDebugMe
+ lea LibName(pc),a1
+ jsr FindResident(a6)
+ move.l #10,PiSCSIDebugMe
+ cmp.l #0,d0
+ bne.s SkipDriverLoad ; Library is already loaded, jump straight to partitions
+
+ move.l #4,PiSCSIDebugMe
+ movea.l 4,a6
+ move.l #$40000,d0
+ moveq #0,d1
+ jsr AllocMem(a6) ; Allocate memory for the PiStorm to copy the driver to
+
+ move.l d0,PiSCSIDriver ; Copy the PiSCSI driver to allocated memory and patch offsets
+
+ move.l #5,PiSCSIDebugMe
+ move.l d0,a1
+ move.l #0,d1
+ movea.l 4,a6
+ add.l #$028,a1
+ jsr InitResident(a6) ; Initialize the PiSCSI driver
+
+SkipDriverLoad:
+ move.l #9,PiSCSIDebugMe
+ jsr LoadFileSystems(pc)
+
+FSLoadExit:
+ lea ExpansionName(pc),a1
+ moveq #0,d0
+ jsr OpenLibrary(a6) ; Open expansion.library to make this work, somehow
+ move.l a6,a4
+ move.l d0,a6
+
+ move.l #7,PiSCSIDebugMe
+PartitionLoop:
+ move.l PiSCSIGetPart,d0 ; Get the available partition in the current slot
+ beq.w EndPartitions ; If the next partition returns 0, there's no additional partitions
+ move.l d0,a0
+ jsr MakeDosNode(a6)
+ cmp.l #0,PiSCSIGetFSInfo
+ beq.s SkipLoadFS
+
+ move.l d0,PiSCSILoadFS ; Attempt to load the file system driver from data/fs
+ cmp.l #$FFFFFFFF,PiSCSIAddr4
+ beq SkipLoadFS
+
+ jsr LoadFileSystems(pc)
+
+SkipLoadFS:
+ move.l d0,PiSCSISetFSH
+ move.l d0,PiSCSIAddr2 ; Put DeviceNode address in PiSCSIAddr2, because I'm useless
+ move.l d0,a0
+ move.l PiSCSIGetPrio,d0
+ move.l #0,d1
+ move.l PiSCSIAddr1,a1
+
+* Uncomment these lines to test AddDosNode/Enqueue stuff
+* Or comment them out all the way down to and including SkipEnqueue: to use the AddBootNode method instead.
+ cmp.l #-128,d0
+ bne.s EnqueueNode
+
+* BOOL AddDosNode( LONG bootPri, ULONG flags, struct DeviceNode *deviceNode );
+* amicall(ExpansionBase, 0x96, AddDosNode(d0,d1,a0))
+ move.l #38,PiSCSIDebugMe
+ jsr AddDosNode(a6)
+ bra.w SkipEnqueue
+* VOID Enqueue( struct List *list, struct Node *node );
+* amicall(SysBase, 0x10e, Enqueue(a0,a1))
+
+EnqueueNode:
+ exg a6,a4
+ ;move.l #35,PiSCSIDebugMe
+ ;move.l #BootNode_SIZEOF,PiSCSIDebugMe
+ ;move.l #NT_BOOTNODE,PiSCSIDebugMe
+ ;move.l #LN_TYPE,PiSCSIDebugMe
+ ;move.l #LN_PRI,PiSCSIDebugMe
+ ;move.l #LN_NAME,PiSCSIDebugMe
+ ;move.l #eb_MountList,PiSCSIDebugMe
+ ;move.l #35,PiSCSIDebugMe
+
+ move.l #BootNode_SIZEOF,d0
+ move.l #$10001,d1
+ jsr AllocMem(a6) ; Allocate memory for the BootNode
+
+ move.l d0,PiSCSIAddr3
+ move.l #36,PiSCSIDebugMe
+
+ move.l d0,a1
+ move.b #NT_BOOTNODE,LN_TYPE(a1)
+ move.l PiSCSIGetPrio,d0
+ move.b d0,LN_PRI(a1)
+ move.l PiSCSIAddr2,bn_DeviceNode(a1)
+ move.l PiSCSIAddr1,LN_NAME(a1)
+
+ lea eb_MountList(a4),a0
+ jsr Enqueue(a6)
+ exg a6,a4
+
+SkipEnqueue:
+
+* BOOL AddBootNode( LONG bootPri, ULONG flags, struct DeviceNode *deviceNode, struct ConfigDev *configDev );
+* amicall(ExpansionBase, 0x24, AddBootNode(d0,d1,a0,a1))
+* Comment out the line below to test AddDosNode/Enqueue stuff
+* jsr AddBootNode(a6)
+ move.l #1,PiSCSINextPart ; Switch to the next partition
+ bra.w PartitionLoop
+
+
+EndPartitions:
+ move.l #8,PiSCSIDebugMe
+ move.l a6,a1
+ move.l #800,PiSCSIDebugMe
+ movea.l 4,a6
+ move.l #801,PiSCSIDebugMe
+ jsr CloseLibrary(a6)
+ move.l #802,PiSCSIDebugMe
+
+ move.l (a7)+,a6 ; Pop A6 from stack
+ move.l #803,PiSCSIDebugMe
+
+ move.w #$80B8,$dff09a ; Re-enable interrupts
+ move.l #804,PiSCSIDebugMe
+ moveq.l #1,d0 ; indicate "success"
+ move.l #805,PiSCSIDebugMe
rts
- ; Rest of your position-independent device code goes here.
+ align 4
+FileSysName dc.b 'FileSystem.resource',0
+FileSysCreator dc.b 'PiStorm',0
+
+CurFS: dc.l $0
+FSResource: dc.l $0
+
+ align 2
+LoadFileSystems:
+ movem.l d0-d7/a0-a6,-(sp) ; Push registers to stack
+ move.l #30,PiSCSIDebugMe
+ movea.l 4,a6
+ReloadResource:
+ lea FileSysName(pc),a1
+ jsr OpenResource(a6)
+ tst.l d0
+ bne FSRExists
+
+ move.l #33,PiSCSIDebugMe ; FileSystem.resource isn't open, create it
+ ; Code based on WinUAE filesys.asm
+
+ moveq #32,d0 ; sizeof(FileSysResource)
+ move.l #$10001,d1
+ jsr AllocMem(a6)
+ move.l d0,a2
+ move.b #8,8(a2) ; NT_RESOURCE
+ lea FileSysName(pc),a0
+ move.l a0,10(a2) ; node name
+ lea FileSysCreator(pc),a0
+ move.l a0,14(a2) ; fsr_Creator
+ lea 18(a2),a0
+ move.l a0,(a0) ; NewList() fsr_FileSysEntries
+ addq.l #4,(a0)
+ move.l a0,8(a0)
+ lea $150(a6),a0 ; ResourceList
+ move.l a2,a1
+ jsr -$f6(a6) ; AddTail
+ move.l a2,a0
+ move.l a0,d0
+
+FSRExists:
+ move.l d0,PiSCSIAddr2 ; PiSCSIAddr2 is now FileSystem.resource
+ move.l #31,PiSCSIDebugMe
+ move.l PiSCSIAddr2,a0
+ move.l PiSCSIGetFS,d0
+ cmp.l #0,d0
+ beq.w FSDone
+
+FSNext:
+ move.l #45,PiSCSIDebugMe
+ lea fsr_FileSysEntries(a0),a0
+ move.l a0,d2
+ move.l LH_HEAD(a0),d0
+ beq.w NoEntries
+
+FSLoop:
+ move.l #34,PiSCSIDebugMe
+ move.l d0,a1
+ move.l #35,PiSCSIDebugMe
+ cmp.l fse_DosType(a1),d7
+ move.l #36,PiSCSIDebugMe
+ beq.w AlreadyLoaded
+ move.l #37,PiSCSIDebugMe
+ move.l LN_SUCC(a1),d0
+ bne.w FSLoop
+ move.l #390,PiSCSIDebugMe
+ bra.w NoEntries
+
+ align 2
+NoEntries:
+ move.l #39,PiSCSIDebugMe
+ move.l PiSCSIFSSize,d0
+ move.l #40,PiSCSIDebugMe
+ move.l #$10001,d1
+ move.l #41,PiSCSIDebugMe
+ jsr AllocMem(a6)
+ move.l d0,PiSCSIAddr3
+ move.l d0,a0
+ move.l #1,PiSCSICopyFS
+ move.b #NT_RESOURCE,LN_TYPE(a0)
+
+AlreadyLoaded:
+ move.l #480,PiSCSIDebugMe
+ move.l PiSCSIAddr2,a0
+ move.l #1,PiSCSINextFS
+ move.l PiSCSIGetFS,d0
+ cmp.l #0,d0
+ bne.w FSNext
+
+FSDone: move.l #37,PiSCSIDebugMe
+ move.l #32,PiSCSIDebugMe ; Couldn't open FileSystem.resource, Kick 1.2/1.3?
+
+ movem.l (sp)+,d0-d7/a0-a6 ; Pop registers from stack
+ rts
- END
+FSRes
+ dc.l 0
+ dc.l 0
+ dc.b NT_RESOURCE
+ dc.b 0
+ dc.l FileSysName
+ dc.l FileSysCreator
+.Head
+ dc.l .Tail
+.Tail
+ dc.l 0
+ dc.l .Head
+ dc.b NT_RESOURCE
+ dc.b 0
projects / pistorm / blobdiff