A2osX/DRV/LANCEGS.DRV.S.txt
2017-12-22 22:24:30 +01:00

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NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
.LIST OFF
.OP 65C02
.OR $2000
.TF /A2OSX.BUILD/DRV/LANCEGS.DRV
*--------------------------------------
.INB /A2OSX.BUILD/INC/MACROS.I
.INB /A2OSX.BUILD/INC/A2OSX.I
.INB /A2OSX.BUILD/INC/MLI.ERR.I
.INB /A2OSX.BUILD/INC/NIC.I
.INB /A2OSX.BUILD/INC/NIC.91C96.I
.INB /A2OSX.BUILD/INC/LIBTCPIP.I
*--------------------------------------
ZPTmpPTR .EQ ZPDRV
Size .EQ ZPDRV+2
Counter .EQ ZPDRV+4
*--------------------------------------
* 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 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
*--------------------------------------
* 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
.DA 0 End Of Reloc Table
*--------------------------------------
Dev.Detect >STYA Args
>LDYA L.MSG.DETECT
>SYSCALL PrintF.YA
ldx #$70
ldy #7
.1 lda A2osX.S,y IO based detection, avoid scanning in Disk Controller IO!!!!
bne .2
lda L91C96.BSR+1,x
cmp #DEVID
beq .3
.2 dec DEV.HEADER.NAME+4
txa
sec
sbc #$10
tax
dey
bne .1
>LDYA L.MSG.DETECT.KO
>SYSCALL PrintF.YA
lda #MLI.E.NODEV
sec
rts
.3 stx DEVSLOTx0
lda #A2osX.S.NIC
sta A2osX.S,y
>LDYA ARGS
>STYA ZPTmpPTR
lda (ZPTmpPTR)
beq .4
sec
ror USERMAC
>SYSCALL GetMemPtr.A
>STYA ZPTmpPTR
jsr DecodeMac
bcc .4
lda #K.E.SYN
sec
rts
.4 >PUSHW L.DEV.HEADER.NAME
>LDYA L.MSG.DETECT.OK
>SYSCALL PrintF.YA
clc
rts
*--------------------------------------
.INB /A2OSX.SRC/DRV/X.NET.DRV.S
*--------------------------------------
CS.END
MSG.DETECT >CSTR "LanCeGS/SMSC91C96 Driver.\r\n"
MSG.DETECT.OK >CSTR "LanCeGS/SMSC91C96 Installed As Device : %S\r\n"
MSG.DETECT.KO >CSTR "Hardware Not Found.\r\n"
Args .BS 2
*--------------------------------------
* Device Header (16 Bytes)
*--------------------------------------
DEV.HEADER cld
jmp (DRV.CS.START,x)
.DA #0
.BS 6
DEV.HEADER.NAME >CSTR "ETH7"
*--------------------------------------
* Driver Code
*--------------------------------------
DRV.CS.START .DA STATUS
.DA READBLOCK
.DA WRITEBLOCK
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA OPEN
.DA CLOSE
.DA A2osX.BADCALL
.DA A2osX.BADCALL
L.DEVSTAT .DA DEVSTAT
.DA 0 end or relocation
*--------------------------------------
STATUS lda #S.DSTAT.NIC.STATUS.10
sta LINK.STATUS
ldx DEVSLOTx0
stz L91C96.BSR,x
lda L91C96.0.EPHSR,x
lda L91C96.0.EPHSR+1,x
and /L91C96.0.EPHSR.LINK
beq .1
lda LINK.STATUS
ora #S.DSTAT.NIC.STATUS.OK
sta LINK.STATUS
.1 lda L91C96.0.TCR,x
lda L91C96.0.TCR+1,x
and /L91C96.0.TCR.FDSE
bne .2
lda LINK.STATUS
ora #S.DSTAT.NIC.STATUS.FD
sta LINK.STATUS
.2 >LDYA L.DEVSTAT
clc
rts
*--------------------------------------
READBLOCK ldx DEVSLOTx0
lda #2
sta L91C96.BSR,x
lda L91C96.2.IST,x
and #L91C96.2.IST.RCV
bne READBLOCK.RxOK
lda #ERR.DEV.NOFRAME
sec
rts
READBLOCK.RxOK lda #L91C96.2.PTR.RCVD+L91C96.2.PTR.AUTOI+L91C96.2.PTR.READ
sta L91C96.2.PTR,x
lda /L91C96.2.PTR.RCVD+L91C96.2.PTR.AUTOI+L91C96.2.PTR.READ
sta L91C96.2.PTR+1,x
lda L91C96.2.DATA,x Get Frame Status Word (lo)
lda L91C96.2.DATA,x Get Frame Status Word (HI)
asl
asl
asl #$10 = odd?
asl if odd, CS
lda L91C96.2.DATA,x get lo byte count
sbc #5 compute Size
sta Size
eor #$ff
sta Counter
tay
lda L91C96.2.DATA,x get hi byte count
sbc #0
sta Size+1
eor #$ff
sta Counter+1
eor #$ff
iny
bne .1
inc
.1 iny
bne .11
inc
.11 >SYSCALL GetMem.YA
bcs .99
>STYA ZPTmpPTR
stx .8+1
sty .8+3
sta .8+5
lda Size
sta (ZPTmpPTR)
ldy #1
lda Size+1
sta (ZPTmpPTR),y
iny
ldx DEVSLOTx0
.2 inc Counter
bne .21
inc Counter+1
beq .4
.21 lda L91C96.2.DATA,x
sta (ZPTmpPTR),y
iny
bne .3
inc ZPTmpPTR+1
.3 inc Counter
bne .31
inc Counter+1
beq .4
.31 lda L91C96.2.DATA,x
sta (ZPTmpPTR),y
iny
bne .2
inc ZPTmpPTR+1
bra .2
.4 lda #L91C96.2.MMUCR.REMREL
sta L91C96.2.MMUCR,x
.8 ldx #$ff hMem
ldy #$ff PtrLO
lda #$ff PtrHI
clc
.99 rts
*--------------------------------------
WRITEBLOCK >STYA ZPTmpPTR
ldx DEVSLOTx0
lda #2
sta L91C96.BSR,x
lda (ZPTmpPTR)
sta Size
eor #$ff
sta Counter
eor #$ff
clc
adc #6 3 WORDs more Status, len & Control
bne .10
clc LO byte is 0, no need for an extra empty page
.10 ldy #1
lda (ZPTmpPTR),y
sta Size+1
eor #$ff
sta Counter+1
eor #$ff
adc #0
.1 ora #L91C96.2.MMUCR.ALLOC
sta L91C96.2.MMUCR,x
ldy #0
.2 lda L91C96.2.IST,x
and #L91C96.2.IST.ALLOC
bne .3
dey
bne .2
lda #ERR.DEV.NOBUFFER
sec
rts
.3 lda L91C96.2.AAR,x
sta L91C96.2.PNR,x
lda #L91C96.2.PTR.AUTOI
sta L91C96.2.PTR,x
lda /L91C96.2.PTR.AUTOI
sta L91C96.2.PTR+1,x
ldy #S.ETH.SRCMAC+5 Add Src MAC Address
ldx #5
.4 lda MAC,x
sta (ZPTmpPTR),y
dey
dex
bpl .4
ldx DEVSLOTx0
stz L91C96.2.DATA,x write fake status word
stz L91C96.2.DATA,x
lda Size
pha
eor #$01
lsr
pla
adc #$05 add 5 if odd, 6 if even
sta L91C96.2.DATA,x
lda Size+1
adc #$00
sta L91C96.2.DATA,x
ldy #2
.5 inc Counter
bne .51
inc Counter+1
beq .70
.51 lda (ZPTmpPTR),y
iny
bne .6
inc ZPTmpPTR+1
.6 inc Counter
bne .61
inc Counter+1
beq .71
.61 sta L91C96.2.DATA,x
lda (ZPTmpPTR),y
sta L91C96.2.DATA,x
iny
bne .5
inc ZPTmpPTR+1
bra .5
.70 lda #0
sta L91C96.2.DATA,x
sta L91C96.2.DATA,x
bra .8
.71 sta L91C96.2.DATA,x
lda #%00100000 signal an extra (odd) byte
sta L91C96.2.DATA,x
.8 lda #L91C96.2.MMUCR.NQPKT
sta L91C96.2.MMUCR,x
clc
rts
.9 sec
rts
*--------------------------------------
OPEN jsr CLOSE
lda #L91C96.0.TCR.FDSE+L91C96.0.TCR.FUDPLX+L91C96.0.TCR.PADEN+L91C96.0.TCR.TXENA
sta L91C96.0.TCR,x
lda /L91C96.0.TCR.FDSE+L91C96.0.TCR.FUDPLX+L91C96.0.TCR.PADEN+L91C96.0.TCR.TXENA
sta L91C96.0.TCR+1,x
lda #L91C96.0.RCR.NOCRC+L91C96.0.RCR.RXENA+L91C96.0.RCR.ALLMUL
sta L91C96.0.RCR,x
lda /L91C96.0.RCR.NOCRC+L91C96.0.RCR.RXENA+L91C96.0.RCR.ALLMUL
sta L91C96.0.RCR+1,x
lda #1
sta L91C96.BSR,x
lda #L91C96.1.CR.NOWAIT
sta L91C96.1.CR,x
lda /L91C96.1.CR.NOWAIT
sta L91C96.1.CR+1,x
ldy #0
bit USERMAC
bmi .2
.1 lda L91C96.1.IAR,x
sta MAC,y
inx
iny
cpy #6
bne .1
bra .3
.2 lda MAC,y
sta L91C96.1.IAR,x
inx
iny
cpy #6
bne .2
.3 ldx DEVSLOTx0
lda #L91C96.1.CTR.DEFAULT+L91C96.1.CTR.AUTOREL
sta L91C96.1.CTR,x
lda /L91C96.1.CTR.DEFAULT+L91C96.1.CTR.AUTOREL
sta L91C96.1.CTR+1,x
clc
rts
*--------------------------------------
CLOSE ldx DEVSLOTx0
stz L91C96.BSR,x
lda #L91C96.0.RCR.RESET
sta L91C96.0.RCR,x
lda /L91C96.0.RCR.RESET
sta L91C96.0.RCR+1,x
lda $C019 we can use VBL as we are not on //c
.1 eor $C019
bpl .1
lda $C019
.2 eor $C019
bpl .2
stz L91C96.0.RCR,x
stz L91C96.0.RCR+1,x
clc
rts
*--------------------------------------
DRV.CS.END
DEVSLOTx0 .BS 1
USERMAC .BS 1
*--------------------------------------
DEVSTAT .DA #0
.BS 3 size
>PSTR "LanCEGS/L91C96"
.BS 1
.DA #S.DSTAT.T.NET
.BS 1 Subtype
.BS 2 Version
*--------------------------------------
FLAGS .DA #0
LINK.STATUS .BS 1 OK/DUPLEX/SPEED
MAC .BS 6
*--------------------------------------
MAN
SAVE /A2OSX.SRC/DRV/LANCEGS.DRV.S
ASM