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A2osX/SYS/KM.VEDRIVE.S.txt

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Kernel 0.94
2020-08-31 15:29:32 +00:00
NEW
AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
.TF sys/km.vedrive
*--------------------------------------
.INB inc/macros.i
.INB inc/io.i
.INB inc/monitor.i
.INB inc/mli.i
.INB inc/mli.e.i
*--------------------------------------
TmpPtr1 .EQ $0
ADT.CMD.VSD .EQ $C5 "E": Virtual Drive Command Envelope
ADT.CMD.PING .EQ $D9 "Y": PING
DRV.EntryPoint .EQ $BF41
*--------------------------------------
VSDRIVE.Init >LDYAI VSDRIVE.MSG0
jsr PrintFYA
jsr VSDRIVE.Check
bcs .90
.1 lda #$C1 Self Modified
.2 jsr SSC.Detect
bcs .99
stx DRV+2 DRV.Slotn0
sta .1+1 Slot Cn
and #$0F
pha slot n
>LDYAI VSDRIVE.SSCOK
jsr PrintFYA
jsr VSDRIVE.Ping
bcs .92
>LDYAI VSDRIVE.SRVOK
jsr PrintFYA
jsr VSDRIVE.SetSlot
bcs .91
pha Push slot
pha 2 times
>LDYAI VSDRIVE.DEVOK
jsr PrintFYA
jsr VSDRIVE.Install
>LDYAI VSDRIVE.OK
jsr PrintFYA
rts
.90 >LDYAI VSDRIVE.DRVKO
jsr PrintFYA
rts
.91 >LDYAI VSDRIVE.NOSLOT
jsr PrintFYA
rts
.92 pha Push EC
>LDYAI VSDRIVE.SRVKO
jsr PrintFYA
inc .1+1
lda .1+1
cmp #$C8
bne .2 Go try next SSC....
.99 >LDYAI VSDRIVE.SSCKO
jsr PrintFYA
rts
*--------------------------------------
VSDRIVE.Check bit RRAMWRAMBNK2
bit RRAMWRAMBNK2
clc
lda $D001
eor DRV
bne .8
lda $D002
eor DRV+1
bne .8
sec
.8 bit RROMBNK1
rts
*--------------------------------------
SSC.Detect stz TmpPtr1
sta TmpPtr1+1
.1 ldx #DEVSIG.Value-DEVSIG.Offset-1
.2 ldy DEVSIG.Offset,x
lda (TmpPtr1),y
cmp DEVSIG.Value,x
bne .3
dex
bpl .2
lda TmpPtr1+1 A=SlotCN
asl
asl
asl
asl
tax X=SlotN0
stz SSC.RESET,x
jsr VSDRIVE.Wait
lda #SSC.CTL.CLKINT+SSC.CTL.B115200+SSC.CTL.8D+SSC.CTL.1S+SSC.CMD.NOP
sta SSC.CTL,x
jsr VSDRIVE.Wait
lda #SSC.CMD.RIRQDIS+SSC.CMD.TE+SSC.CMD.DTR
sta SSC.CMD,x
jsr VSDRIVE.Wait
lda TmpPtr1+1 A=Slot Cn, X=n0
clc
rts X=SlotN0, A=SlotCN
.3 inc TmpPtr1+1 no match, try next slot....
lda TmpPtr1+1
cmp #$C8
bne .1
.9 sec
rts
*--------------------------------------
VSDRIVE.Ping ldx DRV+2 DRV.Slotn0
stz VSDRIVE.Ping.TO
stz VSDRIVE.Ping.TO+1
.10 jsr VSDRIVE.IncTimer Wait.......
bne .10
ldy #10
.1 lda SSC.STATUS,x
and #SSC.STATUS.TDRE Ready for transmit?
bne .20
jsr VSDRIVE.IncTimer Wait.......
bne .1
dey
bne .1
lda #1
sec
rts Time Out.....
.20 stz VSDRIVE.Ping.TO
stz VSDRIVE.Ping.TO+1
ldy #5 5 bytes to send
.2 lda VSDRIVE.CMDS-1,y
sta SSC.DATA,x
.3 lda SSC.STATUS,x
and #SSC.STATUS.TDRE char transmitted?
bne .4
jsr VSDRIVE.IncTimer
bne .3
lda #2
sec
rts
.4 dey
bne .2 next byte
lda #521^$ffff 522 bytes to recieve
sta VSDRIVE.Ping.BC
lda /521^$ffff
sta VSDRIVE.Ping.BC+1
stz VSDRIVE.Ping.TO
stz VSDRIVE.Ping.TO+1
ldy #3 EC if no byte recieved
.5 lda SSC.STATUS,x
and #SSC.STATUS.RDRF incoming char?
bne .6
* jsr VSDRIVE.Wait
jsr VSDRIVE.IncTimer
bne .5
tya
sec
rts
.6 ldy #4 EC=4 if recieved only partial reply
lda SSC.DATA,x
inc VSDRIVE.Ping.BC
bne .5
inc VSDRIVE.Ping.BC+1
bne .5
clc
rts
*--------------------------------------
VSDRIVE.IncTimer
inc VSDRIVE.Ping.TO
bne .8
inc VSDRIVE.Ping.TO+1
.8 rts
*--------------------------------------
VSDRIVE.Wait lda #0
.1 dec
bne .1
rts
*--------------------------------------
VSDRIVE.CMDS .HS C6.00.00.03
.DA #ADT.CMD.VSD
* C6=C5 eor 03 eor 00 eor 00
VSDRIVE.Ping.TO .BS 2
VSDRIVE.Ping.BC .BS 2
*--------------------------------------
* Find 2 free slots in DEVPTRS (D1 & D2)
*--------------------------------------
VSDRIVE.SetSlot ldx #2 Starts at Slot1
.1 lda DEVPTRS,x Drive1
cmp DEVPTRS pointing to S0D1 NODEV ?
bne .2
lda DEVPTRS+1,x
cmp DEVPTRS+1
bne .2
lda DEVPTRS+16,x Drive2
cmp DEVPTRS
bne .2
lda DEVPTRS+17,x
cmp DEVPTRS+1
bne .2
lda #DRV.EntryPoint
sta DEVPTRS,x
sta DEVPTRS+16,x
lda /DRV.EntryPoint
sta DEVPTRS+1,x
sta DEVPTRS+17,x
txa
asl
asl
asl
ora #$0D
ldy DEVCNT
iny
sta DEVLST,y add Drv1
ora #$80
iny
sta DEVLST,y add Drv2
sty DEVCNT
txa
lsr exit with A=SLOT
clc
rts
.2 inx
inx
cpx #16
bne .1
rts sec from CPX
*--------------------------------------
VSDRIVE.Install ldx #PATCH.SIZE
.1 lda PATCH-1,x
sta DRV.EntryPoint-1,x
dex
bne .1
bit RRAMWRAMBNK2
bit RRAMWRAMBNK2
ldx #DRV.SIZE
.2 lda DRV-1,x
sta $D000,x
dex
bne .2
bit RROMBNK1
clc
rts
*--------------------------------------
.INB usr/src/shared/x.printf.s
*--------------------------------------
DEVSIG.Offset .HS 05070B0C
DEVSIG.Value .HS 38180131
VSDRIVE.MSG0 .AZ "VEDRIVE (ADTPro Vitual Ethernet HD) Driver For A2osX\n"
VSDRIVE.DRVKO .AZ "VEDRIVE (Or other custom Driver) Already Installed.\n"
VSDRIVE.SSCKO .AZ "Uthernet2 Not Detected.\n"
VSDRIVE.SSCOK .AZ "Uthernet2 Found At Slot %d.\nContacting ADTPro Server..."
VSDRIVE.SRVKO .AZ "No Response From ADTPro Server (EC=%d).\n"
VSDRIVE.SRVOK .AZ "ADTPro Server Is Online.\n"
VSDRIVE.NOSLOT .AZ "No ProDOS device slot available.\n"
VSDRIVE.DEVOK .AZ "VEDRIVE Installed 2 devices at S%d,D1 & S%d,D2.\n"
VSDRIVE.OK .AZ "VEDRIVE Driver Successfully Installed.\n"
*--------------------------------------
* ProDOS $BE41->$BE4B Patch for switching to BANK2 (10 bytes)
*--------------------------------------
PATCH .PH DRV.EntryPoint
bit RRAMWRAMBNK2
jsr $D001
bit RRAMWRAMBNK1
rts
.EP
PATCH.SIZE .EQ *-PATCH
*--------------------------------------
* Driver
*--------------------------------------
* OP = 2 : Write drv1
* OP = 3 : Read drv1
* OP = 4 : Write drv2
* OP = 5 : Read drv2
* CMD = $C5+OP+BLKLO+BLKHI+CHKSUM
* DO NOT trash DRV.COMMAND...DRV.BLKNUM as ProDOS
* reuses them after Block operation
* A1,A2 are used by Disk II Driver,
* so we use it safely as Tmp Ptr
*--------------------------------------
DRV.A1L .EQ $3C
DRV.A1H .EQ $3D
DRV.A2L .EQ $3E
DRV.A2H .EQ $3F
DRV.COMMAND .EQ $42
DRV.UNITNUM .EQ $43
DRV.BUFF .EQ $44
DRV.BLKNUM .EQ $46
*--------------------------------------
DRV .EQ *
.PH $D001 Main LC Bnk 2 $D001->$DFFF
cld
DRV.Slotn0 ldx #$ff Self Modified
lda DRV.COMMAND S=0,R=1,W=2,F=3
bne .1
ldx #$ff return Status
ldy #$ff
.8 lda #0
clc
rts
.1 cmp #3
beq .8 Format ....
* bcs DRV.DO.CMD.ERR more....IO error
ora #2 W=2,R=3
ldy DRV.UNITNUM
bpl .2
adc #2 CC from bcs
.2 sta DRV.CmdBuf.Cmd store cmd
eor #ADT.CMD.VSD
eor DRV.BLKNUM
eor DRV.BLKNUM+1
sta DRV.CmdBuf.Sum Compute & store CheckSum
lda DRV.BLKNUM
sta DRV.CmdBuf.BlkL
lda DRV.BLKNUM+1
sta DRV.CmdBuf.BlkH
* send CMD+CS
ldy #4 Send 5 bytes including Sum
.3 lda DRV.CmdBuf.Sum,y
jsr DRV.SSCSend
dey
bpl .3
ldy #8
.5 lda DRV.READWRITE,y
sta $100,y
dey
bpl .5
*--------------------------------------
lda DRV.COMMAND
dec 1-1=0 if read
bne DRV.DO.CMD.W go write
*--------------------------------------
* Read block
*--------------------------------------
DRV.DO.CMD.R ldy #3 Read Back and check 4 bytes
.1 jsr DRV.SSCGet
eor DRV.CmdBuf.BlkH,y
bne DRV.DO.CMD.ERR
dey
bpl .1
ldy #4 Read 4 bytes DATE/TIME + 1 Byte Checksum
.2 jsr DRV.SSCGet
eor DRV.CmdBuf.Sum
sta DRV.CmdBuf.Sum
dey
bpl .2
tay Last EOR was with Checksum, must be 0
bne DRV.DO.CMD.ERR
* Y=0 from TAY
stz DRV.CmdBuf.Sum
sec
.3 jsr DRV.SSCGet
jsr $100
eor DRV.CmdBuf.Sum
sta DRV.CmdBuf.Sum
iny
bne .3
bcc .4
inc DRV.BUFF+1
clc
bcc .3
.4 dec DRV.BUFF+1
jsr DRV.SSCGet
eor DRV.CmdBuf.Sum
bne DRV.DO.CMD.ERR
rts A=0,CC from bcc .4
*--------------------------------------
DRV.DO.CMD.ERR1 pla
pla
DRV.DO.CMD.ERR lda #MLI.E.IO
sec
rts
*--------------------------------------
* Write Block
*--------------------------------------
DRV.DO.CMD.W lda #$B1 lda (),y
sta $103
ldy #0
stz DRV.CmdBuf.Sum
sec
.1 jsr $100
jsr DRV.SSCSend
eor DRV.CmdBuf.Sum
sta DRV.CmdBuf.Sum
iny
bne .1
bcc .2
inc DRV.BUFF+1
clc
bcc .1
.2 dec DRV.BUFF+1
* A = DRV.CmdBuf.Sum
jsr DRV.SSCSend
* read back CMD
ldy #4 Read 5 bytes (echo from server)
.3 jsr DRV.SSCGet
eor DRV.CmdBuf.Sum,y Check 5 bytes (including block Sum)
bne DRV.DO.CMD.ERR
dey
bpl .3
rts
*--------------------------------------
DRV.SendRCmd
DRV.SendWCmd
ldx DRV.Slotn0
>AR.Sn.SELECT S0.TX.FSR
lda W5100.DR,x get send size HI
ldy W5100.DR,x LO
cpy #5
sbc /5
bcc IOERR
>AR.Sn.SELECT S0.TX.WR
lda W5100.DR,x Get HI
ldy W5100.DR,x Get LO
and /TX.BASE
ora /RXTX.MASK
sta W5100.AR,x Write HI
pha
tya
sta W5100.AR+1,x Write LO
clc
adc #5
sta .3+1
pla
adc /0
sta .2+1
ldy #4
.1 lda DRV.CmdBuf.Sum,y
sta W5100.DR,x
dey
bpl .1
>AR.SELECT S0.TX.WR
.2 lda #$ff SELF MODIFIED
sta W5100.DR,x write HI
.3 lda #$ff SELF MODIFIED
sta W5100.DR,x write LO
>AR.Sn.SELECT S0.CR
lda #W5100.AR.Sn.CR.SEND
sta W5100.DR,x
rts
*--------------------------------------
DRV.READWRITE bit RRAMWRAMBNK1
sta (DRV.BUFF),y
bit RRAMWRAMBNK2
rts
*--------------------------------------
DRV.CmdBuf.Sum .BS 1 Reverse order for dey
DRV.CmdBuf.BlkH .BS 1
DRV.CmdBuf.BlkL .BS 1
DRV.CmdBuf.Cmd .BS 1
DRV.CmdBuf.Env .DA #ADT.CMD.VSD
*--------------------------------------
.EP
*--------------------------------------
.LIST ON
DRV.SIZE .EQ *-DRV
.LIST OFF
*--------------------------------------
* CONTROL SECTION :
*--------------------------------------
.DO DRV.SIZE>255
* ERROR:DRV.SIZE too big
.FIN
*--------------------------------------
MAN
SAVE usr/src/sys/km.vedrive.s
ASM
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