A2osX/SYS/KERNEL.S.INIT3.txt

PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
INC 1
AUTO 6
*--------------------------------------
Kernel.Init3	sta SETALTZP
				bit RRAMWRAMBNK1
				bit RRAMWRAMBNK1
				
				jsr MemMgrInit
				jsr PS0Init
				bcs * 
				>LDYAI MSG.Init3
				>SYSCALL CPrintFYA
				
				>LDYAI MSG.DEV
				>SYSCALL CPrintFYA
				jsr DevMgrInit
				bcs *

				>LDYAI MSG.IRQ
				>SYSCALL CPrintFYA
				jsr IrqMgrInit
				bcs *

				>LDYAI MSG.EVT
				>SYSCALL CPrintFYA
				jsr EvtMgrInit
				bcs *

				>LDYAI MSG.FLT
				>SYSCALL CPrintFYA
				jsr FltMgrInit
				bcs *

				>LDYAI MSG.TSK
				>SYSCALL CPrintFYA
				jsr TskMgrInit
				bcs *

				ldy #S.PS.hPREFIX
				lda (pPs),y
				>SYSCALL GetMemPtrA
				 
				>PUSHYA
				>LDYAI MSG.Prefix
				>SYSCALL CPrintFYA

				>PUSHWI STARTUP.CMDLINE
				>LDYAI MSG.Startup
				>SYSCALL CPrintFYA

				>LDYAI STARTUP.CMDLINE
				>SYSCALL ExpandPStrYA
				phx						Save Expanded CMDLINE for discard
				>SYSCALL CreateProcessYA
				bcs .9
				pla
				>SYSCALL FreeMemA		...discard...
				
				>LDYAI MSG.Init3.OK
				>SYSCALL CPrintFYA
				
				>LDYAI TskMgr.Table
				>STYA pPs

				>DEBUGOA

				bit RRAMWRAMBNK2
				bit RRAMWRAMBNK2
				jmp K.KernelRun
				
.9				>PUSHA
				>LDYAI MSG.StartupErr
				>SYSCALL CPrintFYA
				bra *					No need to discard Expanded CMDLINE 
*--------------------------------------
MemMgrInit		>LDYAI MemMgr.MHiMem
				>STYA MemMgr.HiMem
				>STYA MemMgr.Free
				>LDYAI MemMgr.MLoMem
				>STYA MemMgr.LoMem
				stz MemMgr.LastSlot		Reserve Slot #0

				sta SETWRITEAUX
				
				>LDYAI MemMgr.XHiMem
				>STYA MemMgr.HiMem
				>STYA MemMgr.Free
				>LDYAI MemMgr.XLoMem
				>STYA MemMgr.LoMem
				stz MemMgr.LastSlot		Reserve Slot #0
				
				sta CLRWRITEAUX

				rts
*--------------------------------------
PS0Init			ldx #S.DEV*2			NUL,SYS

.1				lda DevMgr.NUL-1,x
				sta DevMgr.Table-1,x
				dex
				bne .1

				lda #2
				sta DevMgr.Count
				
				>LDYAI TskMgr.Table		Select Process 0 (Kernel)
				>STYA pPs

				ldy #S.PS-1
				lda #0
				
.2				sta (pPs),y				Blank PS0
				dey
				bpl .2
				
				>LDYAI DEV.SYS
				>SYSCALL MkNodYA
				bcs .9

				ldy #S.PS.hStdIn
				sta (pPs),y
				ldy #S.PS.hStdOut
				sta (pPs),y
				ldy #S.PS.hStdErr
				sta (pPs),y

				clc
.9				rts
*--------------------------------------
DevMgr.NUL		cld
				jmp (DevMgr.NUL.Code,x)
				.DA #S.DEV.S.WRITE+S.DEV.S.READ+S.DEV.S.OPENED
				.BS 6
				>PSTR "NUL"				NAME
				.HS 00					NAME must Be 4 bytes long
*--------------------------------------
DevMgr.SYS		cld
				jmp (DevMgr.SYS.Code,x)
				.DA #S.DEV.S.WRITE+S.DEV.S.READ
				.BS 6
				>PSTR "SYS"				NAME
				.HS 00					NAME must Be 4 bytes long
*--------------------------------------
* Setup AuxLC $FFFE->Kernel IRQ Handler
* if irq not handled, jmp (S.IrqMgrOldFFFE)
*--------------------------------------
SETMOUSE		.EQ $12  				Sets mouse mode
SERVEMOUSE		.EQ $13					Services mouse interrupt
READMOUSE		.EQ $14  				Reads mouse position 
*--------------------------------------
IrqMgrInit		php
				sei
				>LDYA $FFFE
				>STYA K.IrqMgrOldFFFE
				>LDYAI K.IrqHandlerAuxLC
				>STYA $FFFE

				>LDYAI IrqHandler
				>STYA K.MLI.PARAMS+2
				>MLICALL MLIALLOCIRQ
				bcs .9
				
				lda K.MLI.PARAMS+1
				sta ProDOS.INTNUM
								
				stz ZPPtr1				Try finding a Mouse Card...
				lda #$C1
				sta ZPPtr1+1
				
.1				ldx #DEVSIG.Value-DEVSIG.Offset-1

.2				ldy DEVSIG.Offset,x
				lda (ZPPtr1),y
				cmp DEVSIG.Value,x
				bne .3
				dex
				bpl .2
				bra .4
				
.3				inc ZPPtr1+1			no match, try next slot....
				lda ZPPtr1+1
				cmp #$C8
				bne .1	

				plp
				clc
				rts
				
.9				plp
				sec
				rts
				
.4				lda ZPPtr1+1
				sta GOMOUSE.JMP+2		DEVSLOTCn
				sta K.IrqMgrVBL.MSM+2
				sta K.IrqMgrVBL.MRM+2

				and #$0f
				sta K.IrqMgrVBL.0n
				asl
				asl
				asl
				asl
				sta GOMOUSE.n0+1
				sta K.IrqMgrVBL.n0

				ldy #SERVEMOUSE
				lda (ZPPtr1),y
				sta K.IrqMgrVBL.MSM+1

				ldy #READMOUSE
				lda (ZPPtr1),y
				sta K.IrqMgrVBL.MRM+1
				
				bit RROMBNK2			Renable ROM to allow MOUSE II firmware works properly
				
				ldx K.IrqMgrVBL.0n
				lda $7F8,x
				and #$0F
				ora #9
				ldy #SETMOUSE
				jsr GOMOUSE
				bcs *
				
				bit RRAMWRAMBNK1		Back To LC Ram
				bit RRAMWRAMBNK1
				
				inc K.IrkMgr.VBL		set=1 awaiting IrqMgr confirmation
				
				plp
				clc
				rts
*--------------------------------------
GOMOUSE			pha
				stz ZPPtr1
				ldx GOMOUSE.JMP+2		DEVSLOTCn
				stx ZPPtr1+1
				lda (ZPPtr1),y
				sta GOMOUSE.JMP+1
GOMOUSE.n0		ldy #$ff
				pla
GOMOUSE.JMP		jmp $ffff				Self Modified
*--------------------------------------
DEVSIG.Offset	.HS 05070B0CFB
DEVSIG.Value	.HS 38180120D6
*--------------------------------------
DevMgrInit		stz ZPPtr1
				lda #$C1
				sta ZPPtr1+1
				lda #1
				sta DEV.HEADER+S.DEV.BUSID
				
.1				lda #1
				sta DEV.HEADER+S.DEV.DEVID
				
				ldx #SmartPort.SIG-SmartPort.OFS-1

.2				ldy SmartPort.OFS,x		Check if there is a smartport firmware
				lda (ZPPtr1),y
				cmp SmartPort.SIG,x
				bne .8					not a Disk Controller...
				dex
				bpl .2

				ldy #$ff
				lda (ZPPtr1),y
				bne .3					$0, Disk II, 16sect

				jsr DevMgrInit.DII
				ldy #A2osX.SLOTS.DII
				bra .7

.3				inc
				beq .7					$ff, Disk II 13 Sect, ingnore
				
				ldy #7
				lda (ZPPtr1),y
				bne .4					$Cn07=00 : SmartPort
				
				jsr DevMgrInit.SP
				ldy #A2osX.SLOTS.SP
				bra .7
	
.4				jsr DevMgrInit.BLK
				ldy #A2osX.SLOTS.BLK
				
.7				lda ZPPtr1+1
				and #$0f
				tax
				tya
				sta A2osX.SLOTS,x
				
.8				inc DEV.HEADER+S.DEV.BUSID
				inc ZPPtr1+1
				lda ZPPtr1+1				
				cmp #$C8
				bne .1
				
				clc
				rts
*--------------------------------------
DevMgrInit.DII	>LDYAI A2osX.DIIDrv
				>STYA DEV.HEADER+S.DEV.DRV.JMP
				jsr DevMgrInit.AddDev
				inc DEV.HEADER+S.DEV.DEVID
				jsr DevMgrInit.AddDev
				rts
*--------------------------------------
DevMgrInit.BLK	ldy #$ff
				lda (ZPPtr1),y
				sta DEV.HEADER+S.DEV.ROM.JMP
				lda ZPPtr1+1
				sta DEV.HEADER+S.DEV.ROM.JMP+1
				
				>LDYAI A2osX.BlkDrv
				>STYA DEV.HEADER+S.DEV.DRV.JMP
				
				jsr DevMgrInit.AddDev
				inc DEV.HEADER+S.DEV.DEVID
				jsr DevMgrInit.AddDev
				rts
				
DevMgrInit.BLK.JMP
				jmp (DEV.HEADER+S.DEV.ROM.JMP)
*--------------------------------------
DevMgrInit.SP	ldy #$ff
				lda (ZPPtr1),y
				clc
				adc #3					Compute smartport entry point
				sta .1+1
				sta .3+1
				sta DEV.HEADER+S.DEV.ROM.JMP
				lda ZPPtr1+1
				sta .1+2
				sta .3+2
				sta DEV.HEADER+S.DEV.ROM.JMP+1
				
.1				jsr $ffff				Self Modified
				.DA #0					Status
				.DA SP.CTRL.STATUS
				bcs .9
				lda SP.CTRL.STATUS.DATA
				beq .9					no device
				
.2				lda #'1'
				sta DEV.HEADER+S.DEV.DEVID
				sta SP.DEV.STATUS.DEVID
				
.3				jsr $ffff				Self Modified
				.DA #0					Status
				.DA SP.DEV.STATUS
				bcs .7
				lda SP.DEV.STATUS.DATA+S.DEVSTAT.S
				sta DEV.HEADER+S.DEV.S
				
				jsr DevMgrInit.AddDev
				
.7				inc DEV.HEADER+S.DEV.DEVID
				dec SP.CTRL.STATUS.DATA
				bne .3

.9				rts
*--------------------------------------
DevMgrInit.AddDev
				lda DevMgr.Count
				cmp #K.DEV.MAX
				beq .9
				
				inc DevMgr.Count
				>SYSCALL GetDevByIDA
				>STYA ZPPtr2
				
				lda DEV.HEADER+S.DEV.BUSID
				ora #$30
				sta DEV.HEADER+S.DEV.NAME+2		SnDy
				
				lda DEV.HEADER+S.DEV.DEVID
				ora #$30
				sta DEV.HEADER+S.DEV.NAME+4		SxDn

				ldy #S.DEV-1
				
.1				lda DEV.HEADER,y
				sta (ZPPtr2),y
				dey
				bpl .1
				
				clc
				rts
				
.9				lda #DEVMGR.ERROOH
				sec
				rts					
*--------------------------------------
DEV.HEADER		clc
				jmp ($ffff,x)
				.DA #S.DEV.S.BLOCK		S
				.BS 1					F
				.BS 1					BUS.ID
				.BS 1					DEV.ID
				.BS 2					ROM.JMP
				.BS 1
				>PSTR "S1D1"			5 bytes
*--------------------------------------
SmartPort.OFS	.HS 010305
SmartPort.SIG	.HS 200003
*--------------------------------------
SP.CTRL.STATUS	.DA #3
				.DA #0
				.DA SP.CTRL.STATUS.DATA
				.DA #0
SP.CTRL.STATUS.DATA
				.BS 8					DevCnt
SP.DEV.STATUS	.DA #3
SP.DEV.STATUS.DEVID
				.BS 1
				.DA SP.DEV.STATUS.DATA
				.DA #3					return DIB
SP.DEV.STATUS.DATA
				.BS S.DEVSTAT
*--------------------------------------
EvtMgrInit		lda #$A5
				sta A2osX.TIMER16
				lda #$9B
				sta A2osX.TIMER16+1

				lda /EvtMgr.Table
				sta pEvent+1
				clc
				rts
*--------------------------------------
FltMgrInit		stz FltMgr.Table
				clc
				rts
*--------------------------------------
TskMgrInit		>LDYAI TskMgr.Table+S.PS	Clear whole process table except PS0
				>STYA .2+1
				
				ldx #K.PS.MAX-1
				
.1				lda #0	
				ldy #S.PS-1
				
.2				sta $ffff,y				Self Modified
				dey
				bpl .2
				
				lda .2+1
				clc
				adc #S.PS
				sta .2+1
				bcc .3
				
				inc .2+2
.3				dex
				bne .1

				>PUSHWI K.ENV.SIZE		get a buffer for ENV
				>PUSHBI S.MEM.F.INIT0	make sure blank
				>SYSCALL GetMem			create it...
				bcs .9
				
				txa
				ldy #S.PS.hENV
				sta (pPs),y

				>LDYAI UsrBuf256
				>STYA K.MLI.PARAMS+1
				>MLICALL MLIGETPREFIX
				bcs .9
				
				>LDYAI UsrBuf256	
				>SYSCALL NewPStrYA
				bcs .9
				
				txa
				ldy #S.PS.hPREFIX
				sta (pPs),y

				>PUSHWI UsrBuf256		push ENV value
				>PUSHWI I.ENV.A2osX		push ENV name
				>SYSCALL SetEnv
				bcs .9

				>LDYAI I.ENV.PATH
				>SYSCALL PutEnvYA
				bcs .9

				>LDYAI I.ENV.LIB
				>SYSCALL PutEnvYA
				bcs .9

				>LDYAI I.ENV.DRV
				>SYSCALL PutEnvYA
.9				rts
*--------------------------------------
DEV.SYS			>PSTR "SYS"
I.ENV.A2osX		>PSTR "A2OSX"
I.ENV.PATH		>PSTR "PATH=${A2OSX}SBIN/;${A2OSX}BIN/"
I.ENV.LIB		>PSTR "LIB=${A2OSX}LIB/"
I.ENV.DRV		>PSTR "DRV=${A2OSX}DRV/"
STARTUP.CMDLINE	>PSTR "${A2OSX}SBIN/SHELL ${A2OSX}A2osX.STARTUP"
*--------------------------------------
MSG.Init3		>CSTR "A2osX[Stage3]:Init\r\n"
MSG.DEV			>CSTR "-Device Manager...\r\n"
MSG.IRQ			>CSTR "-Interrupt Manager...\r\n"
MSG.EVT			>CSTR "-Event Manager...\r\n"
MSG.FLT			>CSTR "-Path Filter...\r\n"
MSG.TSK			>CSTR "-Task Manager...\r\n"
MSG.Prefix		>CSTR "Prefix:%S\r\n"
MSG.Startup		>CSTR "Executing Kernel Startup Script...\r\nCmd:%S\r\n"
MSG.StartupErr	>CSTR "Failed : [$%h]\r\n"
MSG.Init3.OK	>CSTR "A2osX[Stage3]:Complete.\r\n"
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SYS/KERNEL.S.INIT3
LOAD /A2OSX.SRC/SYS/KERNEL.S
ASM