A2osX/DRV/LANCEGS.DRV.S.txt
2023-11-12 14:20:15 +01:00

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NEW
AUTO 3,1
.LIST OFF
.OP 65C02
.OR $2000
.TF drv/lancegs.drv
*--------------------------------------
.INB inc/macros.i
.INB inc/a2osx.i
.INB inc/mli.e.i
.INB inc/nic.i
.INB inc/nic.91c96.i
.INB inc/eth.i
*--------------------------------------
ZPArgPtr .EQ ZPBIN
DEVSLOT0x .EQ ZPBIN+2
*--------------------------------------
* 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
L.MAC1 .DA DCB+S.DCB.NIC.MAC+1
L.MAC2 .DA DCB+S.DCB.NIC.MAC+2
L.MAC3 .DA DCB+S.DCB.NIC.MAC+3
L.MAC4 .DA DCB+S.DCB.NIC.MAC+4
L.MAC5 .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 L91C96.BSR+1,x
cmp #L91C96.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
rts
.3 stx DEVSLOTx0
sty DEVSLOT0x
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
.99 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.R16
eor A2osX.T16
sta DCB+S.DCB.NIC.MAC+3
eor A2osX.R16+1
sta DCB+S.DCB.NIC.MAC+4
eor A2osX.T16+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 .CZ "LanCeGS/SMSC91C96 Driver."
MSG.DETECT.OK .CZ "LanCeGS/SMSC91C96 Installed As Device : %s\r\n"
MSG.DETECT.KO .CZ "Hardware Not Found."
SSCANF.MAC .CZ "%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
Size .EQ ZPDRV+4
Counter .EQ ZPDRV+6
*--------------------------------------
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.S
lda (ZPIOCTL),y
beq .1
cmp #S.IOCTL.S.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.S.GETDCB
bne STATUS.9
stz DCB+S.DCB.NIC.LINK
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 #S.DCB.NIC.LINK.OK
tsb DCB+S.DCB.NIC.LINK
lda L91C96.0.TCR,x
lda L91C96.0.TCR+1,x
and /L91C96.0.TCR.FDSE
beq .1
lda #S.DCB.NIC.LINK.FD
tsb DCB+S.DCB.NIC.LINK
.1 ldy #S.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta .4+1
iny
lda (ZPIOCTL),y
sta .4+2
ldx #S.DCB.NIC-1
.3 lda DCB,x
.4 sta $ffff,x SELF MODIFIED
dex
bpl .3
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 #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
.2 lda DCB+S.DCB.NIC.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
.9 lda #MLI.E.OPEN
sec
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
.2 eor $C019
bpl .2
stz L91C96.0.RCR,x
stz L91C96.0.RCR+1,x
clc
rts
*--------------------------------------
READ php
sei
>STYA ZPIOCTL
ldx DEVSLOTx0
lda #2
sta L91C96.BSR,x
lda L91C96.2.IST,x
and #L91C96.2.IST.RCV
beq READWRITE.9
.1 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 #$10 = odd?
asl if odd, CS
lda L91C96.2.DATA,x get lo byte count
sbc #5 compute Size
pha
ldy #S.IOCTL.BYTECNT
sta (ZPIOCTL),y
eor #$ff
sta Counter
lda L91C96.2.DATA,x get hi byte count
sbc #0
iny
sta (ZPIOCTL),y
eor #$ff
sta Counter+1
eor #$ff
ply Y,A = Size
>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 .4
.3 lda L91C96.2.DATA,x
sta (ZPBufPtr),y
iny
bne .2
inc ZPBufPtr+1
bra .2
.4 lda #L91C96.2.MMUCR.REMREL
sta L91C96.2.MMUCR,x
.8 pla hMem
plp
clc
rts
*--------------------------------------
READWRITE.9 lda #E.NODATA
READWRITE.99 plp
sec
rts
*--------------------------------------
WRITE php
sei
>STYA ZPIOCTL
ldx DEVSLOTx0
lda #2
sta L91C96.BSR,x
ldy #S.IOCTL.BYTECNT
lda (ZPIOCTL),y
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 iny
lda (ZPIOCTL),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
bra READWRITE.9
.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.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta ZPBufPtr
iny
lda (ZPIOCTL),y
sta ZPBufPtr+1
ldy #S.ETH.SRCMAC+5 Add Src MAC Address
ldx #5
.4 lda DCB+S.DCB.NIC.MAC,x
sta (ZPBufPtr),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 #0
.5 inc Counter
bne .51
inc Counter+1
beq .70
.51 lda (ZPBufPtr),y
iny
bne .6
inc ZPBufPtr+1
.6 inc Counter
bne .61
inc Counter+1
beq .71
.61 sta L91C96.2.DATA,x
lda (ZPBufPtr),y
sta L91C96.2.DATA,x
iny
bne .5
inc ZPBufPtr+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
plp
clc
rts
*--------------------------------------
DRV.CS.END
DEVSLOTx0 .BS 1
*--------------------------------------
DIB .DA #0
.DA #0,#0,#0 size
.PS "LanCEGS/L91C96"
.BS 2
.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/lancegs.drv.s
ASM