A2osX/DRV/UTHERNET.DRV.S.txt

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NEW
PREFIX /A2OSX.BUILD
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AUTO 4,1
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.LIST OFF
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.OP 65C02
.OR $2000
.TF /A2OSX.BUILD/DRV/UTHERNET.DRV
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*--------------------------------------
.INB /A2OSX.BUILD/INC/MACROS.I
.INB /A2OSX.BUILD/INC/A2OSX.I
.INB /A2OSX.BUILD/INC/MLI.ERR.I
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.INB /A2OSX.BUILD/INC/NIC.I
.INB /A2OSX.BUILD/INC/NIC.8900A.I
.INB /A2OSX.BUILD/INC/LIBTCPIP.I
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*--------------------------------------
ZPTmpPTR .EQ ZPDRV
Size .EQ ZPDRV+2
Counter .EQ ZPDRV+4
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
CS.START cld
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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 DEV.HEADER-CS.START Device Header Offset
.DA DRV.CS.START-CS.START Driver Code Offset
.DA DRV.CS.END-DRV.CS.START Drv Code Length
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*--------------------------------------
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* 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.DEV.HEADER.NAME .DA DEV.HEADER.NAME
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.DA 0 End Of Reloc Table
*--------------------------------------
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Dev.Detect >STYA ARGS
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>LDYA L.MSG.DETECT
>SYSCALL PrintF.YA
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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
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cmp /DEVID
bne .2
lda PacketPageDATA,x
cmp #DEVID
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beq .3
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.2 dec DEV.HEADER.NAME+3
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txa
sec
sbc #$10
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tax
dey
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bne .1
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>LDYA L.MSG.DETECT.KO
>SYSCALL PrintF.YA
lda #MLI.E.NODEV
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sec
rts
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.3 stx DEVSLOTx0
lda #A2osX.S.NIC
sta A2osX.S,y
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lda /PP.REVISION Get Revision# of ths chip...
sta PacketPagePTR+1,x
lda #PP.REVISION
sta PacketPagePTR,x
lda PacketPageDATA+1,x
sta DEVSTAT+S.DSTAT.VERSION+1 set Hardware version
lda PacketPageDATA,x
sta DEVSTAT+S.DSTAT.VERSION
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>LDYA ARGS
>STYA ZPTmpPTR
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lda (ZPTmpPTR)
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bne .4
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lda #$00
sta MAC
lda #$0E
sta MAC+1
lda #$3A
sta MAC+2
lda A2osX.RANDOM16
eor A2osX.TIMER16
sta MAC+3
eor A2osX.RANDOM16+1
sta MAC+4
eor A2osX.TIMER16+1
sta MAC+5
bra .8
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.4 jsr DecodeMac
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bcc .8
lda #K.E.SYN
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sec
rts
.8 >PUSHW L.DEV.HEADER.NAME
>LDYA L.MSG.DETECT.OK
>SYSCALL PrintF.YA
clc
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rts
*--------------------------------------
.INB /A2OSX.SRC/DRV/X.NET.DRV.S
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*--------------------------------------
CS.END
MSG.DETECT >CSTR "UtherNet/CS8900A Driver.\r\n"
MSG.DETECT.OK >CSTR "UtherNet/CS8900A Installed As Device : %s\r\n"
MSG.DETECT.KO >CSTR "Hardware Not Found.\r\n"
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ARGS .BS 2
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*--------------------------------------
* Device Header (16 Bytes)
*--------------------------------------
DEV.HEADER cld
jmp (DRV.CS.START,x)
.DA #0
.BS 6
DEV.HEADER.NAME >CSTR "ETH7" NAME
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*--------------------------------------
* Driver Code
*--------------------------------------
DRV.CS.START .DA STATUS
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.DA READBLOCK
.DA WRITEBLOCK
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
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.DA OPEN
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.DA CLOSE
.DA A2osX.BADCALL
.DA A2osX.BADCALL
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L.DEVSTAT .DA DEVSTAT
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.DA 0 end or relocation
*--------------------------------------
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STATUS lda #S.DSTAT.NIC.STATUS.10
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sta LINK.STATUS
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ldx DEVSLOTx0
lda /PP.LineST
sta PacketPagePTR+1,x
lda #PP.LineST
sta PacketPagePTR,x
lda PacketPageDATA+1,x
lda PacketPageDATA,x
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and #PP.LineST.LinkOK
beq .1
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lda LINK.STATUS
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ora #S.DSTAT.NIC.STATUS.OK
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sta LINK.STATUS
.1 lda /PP.TestCTL
sta PacketPagePTR+1,x
lda #PP.TestCTL
sta PacketPagePTR,x
lda PacketPageDATA+1,x
ldy PacketPageDATA,x
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and /PP.TestCTL.FDX
beq .2
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lda LINK.STATUS
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ora #S.DSTAT.NIC.STATUS.FD
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sta LINK.STATUS
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.2 >LDYA L.DEVSTAT
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clc
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rts
*--------------------------------------
READBLOCK php
sei
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ldx DEVSLOTx0
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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
bne .1
lda #ERR.DEV.NOFRAME
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.9 plp
sec
rts
.1 lda RTDATA+1,x discard RxStatus
lda RTDATA,x
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lda RTDATA+1,x
sta Size+1
lda RTDATA,x get RxLength
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sta Size
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clc
adc #2
tay
lda Size+1
adc #0
>SYSCALL GetMem.YA
bcs .9
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>STYA ZPTmpPTR
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stx .8+1
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sty .8+3
sta .8+5
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lda Size
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sta (ZPTmpPTR)
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eor #$ff
sta Counter
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ldy #1
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lda Size+1
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sta (ZPTmpPTR),y
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eor #$ff
sta Counter+1
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iny
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ldx DEVSLOTx0
.2 inc Counter
bne .3
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inc Counter+1
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beq .8
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.3 lda RTDATA,x
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sta (ZPTmpPTR),y
iny
bne .4
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inc ZPTmpPTR+1
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.4 inc Counter
bne .5
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inc Counter+1
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beq .8
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.5 lda RTDATA+1,x
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sta (ZPTmpPTR),y
iny
bne .2
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inc ZPTmpPTR+1
bne .2
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.8 ldx #$ff hMem
ldy #$ff PtrLO
lda #$ff PtrHI
plp
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clc
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rts
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*--------------------------------------
WRITEBLOCK php
sei
>STYA ZPTmpPTR
ldx #5
ldy #S.ETH.SRCMAC+5
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.10 lda MAC,x
sta (ZPTmpPTR),y
dey
dex
bpl .10
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ldx DEVSLOTx0
lda /PP.TxCMD.LID+PP.TxCMD.TxStartFULL
sta TxCMD+1,x
lda #PP.TxCMD.LID+PP.TxCMD.TxStartFULL
sta TxCMD,x
ldy #1
lda (ZPTmpPTR),y
sta TxLength+1,x
eor #$ff
sta Counter+1
lda (ZPTmpPTR)
sta TxLength,x
eor #$ff
sta Counter
lda /PP.BusST
sta PacketPagePTR+1,x
lda #PP.BusST
sta PacketPagePTR,x
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ldy #16
.1 lda PacketPageDATA+1,x
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and /PP.BusST.Rdy4TxNOW
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bne WRITEBLOCK.1
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lda PacketPageDATA,x
and #PP.BusST.TxBidErr
bne .9
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dey
bne .1
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.9 lda #ERR.DEV.NOBUFFER
plp
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sec
rts
WRITEBLOCK.1 ldy #2
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.1 inc Counter
bne .2
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inc Counter+1
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beq .8
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.2 lda (ZPTmpPTR),y
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sta RTDATA,x
iny
bne .3
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inc ZPTmpPTR+1
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.3 inc Counter
bne .4
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inc Counter+1
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beq .8
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.4 lda (ZPTmpPTR),y
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sta RTDATA+1,x
iny
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bne .1
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inc ZPTmpPTR+1
bne .1
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.8 plp
clc
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rts
*--------------------------------------
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OPEN jsr 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
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lda /PP.MAC
sta PacketPagePTR+1,x
lda #PP.MAC
sta PacketPagePTR,x
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>LDYA MAC
>STYA PacketPageDATA,x
>LDYAI PP.MAC+2
>STYA PacketPagePTR,x
>LDYA MAC+2
>STYA PacketPageDATA,x
>LDYAI PP.MAC+4
>STYA PacketPagePTR,x
>LDYA 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
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clc
rts
*--------------------------------------
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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 clc
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rts
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*--------------------------------------
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DRV.CS.END
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DEVSLOTx0 .BS 1
*--------------------------------------
DEVSTAT .DA #0
.BS 3 size
>PSTR "Uthernet/CS8900A"
.DA #S.DSTAT.T.NET
.BS 1 Subtype
.BS 2 Version
*--------------------------------------
FLAGS .DA #0
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LINK.STATUS .BS 1 OK/DUPLEX/SPEED
MAC .BS 6
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MAN
SAVE /A2OSX.SRC/DRV/UTHERNET.DRV.S
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ASM