A2osX/DRV/UTHERNET.DRV.S.txt
2020-05-25 15:58:59 +02:00

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NEW
AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
.TF drv/uthernet.drv
*--------------------------------------
.INB inc/macros.i
.INB inc/a2osx.i
.INB inc/mli.e.i
.INB inc/nic.i
.INB inc/nic.8900a.i
.INB inc/eth.i
*--------------------------------------
.DUMMY
.OR ZPBIN
ZS.START
ZPArgPtr .BS 2
DEVSLOT0x .BS 1
ZS.END .ED
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp Dev.Detect cld,jmp abs=DRV
.DA #$61 6502,Level 1 (65c02)
.DA #1 DRV Layout Version 1
.DA 0
.DA CS.END-CS.START Code Length
.DA 0
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
L.MSG.DETECT .DA MSG.DETECT
L.MSG.DETECT.OK .DA MSG.DETECT.OK
L.MSG.DETECT.KO .DA MSG.DETECT.KO
L.DRV.CS.START .DA DRV.CS.START
L.FD.DEV .DA FD.DEV
L.FD.DEV.NAME .DA FD.DEV.NAME
L.SSCANF.MAC .DA SSCANF.MAC
L.MAC0 .DA DCB+S.DCB.NIC.MAC
.DA DCB+S.DCB.NIC.MAC+1
.DA DCB+S.DCB.NIC.MAC+2
.DA DCB+S.DCB.NIC.MAC+3
.DA DCB+S.DCB.NIC.MAC+4
.DA DCB+S.DCB.NIC.MAC+5
.DA 0 End Of Reloc Table
*--------------------------------------
Dev.Detect >STYA ZPArgPtr
>LDYA L.MSG.DETECT
>SYSCALL PutS
ldx #$70
ldy #7
.1 lda A2osX.S,y IO based detection, avoid scanning in Disk Controller IO!!!!
bne .2
lda /PP.ID
sta PacketPagePTR+1,x
lda #PP.ID
sta PacketPagePTR,x
lda PacketPageDATA+1,x
cmp /DEVID
bne .2
lda PacketPageDATA,x
cmp #DEVID
beq .3
.2 dec FD.DEV.NAME+3
txa
sec
sbc #$10
tax
dey
bne .1
>LDYA L.MSG.DETECT.KO
>SYSCALL PutS
lda #MLI.E.NODEV
sec
.99 rts
.3 stx DEVSLOTx0
sty DEVSLOT0x
lda /PP.REVISION Get Revision# of ths chip...
sta PacketPagePTR+1,x
lda #PP.REVISION
sta PacketPagePTR,x
lda PacketPageDATA+1,x
sta DIB+S.DIB.VERSION+1 set Hardware version
lda PacketPageDATA,x
sta DIB+S.DIB.VERSION
jsr Dev.ParseArgs
bcs .99
.8 >PUSHW L.MSG.DETECT.OK
>PUSHW L.FD.DEV.NAME
>PUSHBI 2
>SYSCALL PrintF
>PUSHWI DRV.END
>PUSHWI DRV.CS.END-DRV.CS.START
>PUSHWI DRV.CS.START
>LDYA L.DRV.CS.START
>SYSCALL InsDrv
bcs .9
>STYA FD.DEV+S.FD.DEV.DRVPTR
>PUSHW L.FD.DEV
>PUSHW L.FD.DEV.NAME
>SYSCALL MKDEV
bcs .9
ldx DEVSLOT0x
lda #A2osX.S.NIC
sta A2osX.S,x
* clc
.9 rts
*--------------------------------------
Dev.ParseArgs lda (ZPArgPTR)
bne .1
lda A2osX.RANDOM16
eor A2osX.TIMER16
sta DCB+S.DCB.NIC.MAC+3
eor A2osX.RANDOM16+1
sta DCB+S.DCB.NIC.MAC+4
eor A2osX.TIMER16+1
sta DCB+S.DCB.NIC.MAC+5
clc
rts
.1 >PUSHW ZPArgPtr
>PUSHW L.SSCANF.MAC
ldx #0
.2 >PUSHW L.MAC0,x
inx
inx
cpx #12
bne .2
>PUSHBI 12 6 x byte PTRs
>SYSCALL sscanf
bcc .8
lda #E.SYN
* sec
.8 rts
*--------------------------------------
CS.END
MSG.DETECT .AZ "UtherNet/CS8900A Driver."
MSG.DETECT.OK .AZ "UtherNet/CS8900A Installed As Device : %s\r\n"
MSG.DETECT.KO .AZ "Hardware Not Found."
SSCANF.MAC .AZ "%h:%h:%h:%h:%h:%h"
*--------------------------------------
FD.DEV .DA #S.FD.T.CDEV
.DA #0 HANDLER
.DA #0 BUSID
.DA #0 DEVID
.DA 0 BUSPTR
.BS 2 DRVPTR
.DA 0 DCBPTR
.DA 0 BUFPTR
FD.DEV.NAME .AZ "eth7"
*--------------------------------------
* Driver Code
*--------------------------------------
ZPIOCTL .EQ ZPDRV
ZPBufPtr .EQ ZPDRV+2
Counter .EQ ZPDRV+4
*--------------------------------------
DRV.CS.START cld
jmp (.1,x)
.1 .DA STATUS
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA OPEN
.DA CLOSE
.DA READ
.DA WRITE
.DA 0 end or relocation
*--------------------------------------
STATUS >STYA ZPIOCTL
ldy #S.IOCTL.STATCODE
lda (ZPIOCTL),y
beq .1
cmp #S.IOCTL.STATCODE.GETDIB
bne STATUS.DCB
ldx #S.DIB-1
.HS 2C bit abs
.1 ldx #3
ldy #S.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta .3+1
iny
lda (ZPIOCTL),y
sta .3+2
.2 lda DIB,x
.3 sta $ffff,x SELF MODIFIED
dex
bpl .2
clc
rts
STATUS.DCB cmp #S.IOCTL.STATCODE.GETDCB
bne STATUS.9
stz DCB+S.DCB.NIC.LINK
ldx DEVSLOTx0
lda /PP.LineST
sta PacketPagePTR+1,x
lda #PP.LineST
sta PacketPagePTR,x
lda PacketPageDATA+1,x
lda PacketPageDATA,x
and #PP.LineST.LinkOK
beq .1
lda #S.DCB.NIC.LINK.OK
tsb DCB+S.DCB.NIC.LINK
lda /PP.TestCTL
sta PacketPagePTR+1,x
lda #PP.TestCTL
sta PacketPagePTR,x
lda PacketPageDATA+1,x
ldy PacketPageDATA,x
and /PP.TestCTL.FDX
beq .1
lda #S.DCB.NIC.LINK.FD
tsb DCB+S.DCB.NIC.LINK
.1 ldy #S.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta .3+1
iny
lda (ZPIOCTL),y
sta .3+2
ldx #S.DCB.NIC-1
.2 lda DCB,x
.3 sta $ffff,x SELF MODIFIED
dex
bpl .2
clc
rts
STATUS.9 lda #MLI.E.BADCTL
sec
rts
*--------------------------------------
OPEN lda #S.DIB.S.OPENED
bit DIB+S.DIB.S
bne .9
jsr CLOSE
* ldx DEVSLOTx0 Done by CLOSE
lda /PP.RxCTL
sta PacketPagePTR+1,x
lda #PP.RxCTL
sta PacketPagePTR,x
lda /PP.RxCTL.LID+PP.RxCTL.RxOKA+PP.RxCTL.IA+PP.RxCTL.BroadcastA+PP.RxCTL.RuntA
sta PacketPageDATA+1,x
lda #PP.RxCTL.LID+PP.RxCTL.RxOKA+PP.RxCTL.IA+PP.RxCTL.BroadcastA+PP.RxCTL.RuntA
sta PacketPageDATA,x
lda /PP.MAC
sta PacketPagePTR+1,x
lda #PP.MAC
sta PacketPagePTR,x
>LDYA DCB+S.DCB.NIC.MAC
>STYA PacketPageDATA,x
>LDYAI PP.MAC+2
>STYA PacketPagePTR,x
>LDYA DCB+S.DCB.NIC.MAC+2
>STYA PacketPageDATA,x
>LDYAI PP.MAC+4
>STYA PacketPagePTR,x
>LDYA DCB+S.DCB.NIC.MAC+4
>STYA PacketPageDATA,x
lda /PP.LineCTL
sta PacketPagePTR+1,x
lda #PP.LineCTL
sta PacketPagePTR,x
lda /PP.LineCTL.LID+PP.LineCTL.SerRxOn+PP.LineCTL.SerTxOn+PP.LineCTL.10BaseT
sta PacketPageDATA+1,x
lda #PP.LineCTL.LID+PP.LineCTL.SerRxOn+PP.LineCTL.SerTxOn+PP.LineCTL.10BaseT
sta PacketPageDATA,x
lda #S.DIB.S.OPENED
tsb DIB+S.DIB.S
clc
rts
.9 lda #MLI.E.OPEN
sec
rts
*--------------------------------------
CLOSE ldx DEVSLOTx0
lda /PP.SelfCTL
sta PacketPagePTR+1,x
lda #PP.SelfCTL
sta PacketPagePTR,x
lda /PP.SelfCTL.LID+PP.SelfCTL.RESET
sta PacketPageDATA+1,x
lda #PP.SelfCTL.LID+PP.SelfCTL.RESET
sta PacketPageDATA,x
lda /PP.SelfST
sta PacketPagePTR+1,x
lda #PP.SelfST
sta PacketPagePTR,x
ldy #0
.1 lda PacketPageDATA+1,x
lda PacketPageDATA,x
and #PP.SelfST.InitDone
bne .8
iny
bne .1
.8 lda #S.DIB.S.OPENED
trb DIB+S.DIB.S
clc
rts
*--------------------------------------
READ php
sei
>STYA ZPIOCTL
ldx DEVSLOTx0
lda /PP.RxEvent
sta PacketPagePTR+1,x
lda #PP.RxEvent
sta PacketPagePTR,x
lda PacketPageDATA+1,x
ldy PacketPageDATA,x
and /PP.RxEvent.RxOK+PP.RxEvent.IA+PP.RxEvent.Brdcast+PP.RxEvent.Runt
beq READWRITE.9
lda RTDATA+1,x discard RxStatus
lda RTDATA,x
lda RTDATA+1,x get RxLength
ldy #S.IOCTL.BYTECNT+1
sta (ZPIOCTL),y
pha
lsr
pha
lda RTDATA,x
dey
sta (ZPIOCTL),y
tay
ror
adc #0
eor #$ff
sta Counter
pla
adc #0
eor #$ff
sta Counter+1
pla
>SYSCALL2 getmem
bcs READWRITE.99
>STYA ZPBufPtr
phx
phy
ldy #S.IOCTL.BUFPTR+1
sta (ZPIOCTL),y
dey
pla
sta (ZPIOCTL),y
ldx DEVSLOTx0
ldy #0
.2 inc Counter
bne .3
inc Counter+1
beq .8
.3 lda RTDATA,x
sta (ZPBufPtr),y
iny
lda RTDATA+1,x
sta (ZPBufPtr),y
iny
bne .2
inc ZPBufPtr+1
bra .2
.8 pla hMem
plp
clc
rts
*--------------------------------------
READWRITE.9 lda #E.NODATA
READWRITE.99 plp
sec
rts
*--------------------------------------
WRITE php
sei
>STYA ZPIOCTL
ldx DEVSLOTx0
lda /PP.TxCMD.LID+PP.TxCMD.TxStartFULL
sta TxCMD+1,x
lda #PP.TxCMD.LID+PP.TxCMD.TxStartFULL
sta TxCMD,x
ldy #S.IOCTL.BYTECNT+1
lda (ZPIOCTL),y
sta TxLength+1,x
lsr
pha
dey
lda (ZPIOCTL),y
sta TxLength,x
ror
adc #0
eor #$ff
sta Counter
pla
adc #0
eor #$ff
sta Counter+1
lda /PP.BusST
sta PacketPagePTR+1,x
lda #PP.BusST
sta PacketPagePTR,x
lda PacketPageDATA+1,x
ldy PacketPageDATA,x
bit /PP.BusST.Rdy4TxNOW
beq READWRITE.9
ldy #S.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta ZPBufPtr
iny
lda (ZPIOCTL),y
sta ZPBufPtr+1
ldx #5
ldy #S.ETH.SRCMAC+5
.10 lda DCB+S.DCB.NIC.MAC,x
sta (ZPBufPtr),y
dey
dex
bpl .10
ldx DEVSLOTx0
ldy #0
.1 inc Counter
bne .2
inc Counter+1
beq .8
.2 lda (ZPBufPtr),y
sta RTDATA,x
iny
bne .3
inc ZPBufPtr+1
.3 lda (ZPBufPtr),y
sta RTDATA+1,x
iny
bne .1
inc ZPBufPtr+1
bne .1
.8 plp
clc
rts
*--------------------------------------
DRV.CS.END
DEVSLOTx0 .BS 1
*--------------------------------------
DIB .DA #0
.DA #0,#0,#0 size
>PSTR "Uthernet/CS8900A"
.DA #S.DIB.T.NIC
.BS 1 Subtype
.BS 2 Version
*--------------------------------------
DCB .DA #S.DCB.T.NIC
.BS 1 FLAGS
.BS 1 LINK
.DA #S.DCB.NIC.SPEED.10
.HS 000E3A123456 MAC
.BS 12 IP/MASK/GW
*--------------------------------------
DRV.END
MAN
SAVE usr/src/drv/uthernet.drv.s
ASM