Apple-2-SW/A2osX
1
0
Fork 0
mirror of https://github.com/A2osX/A2osX.git synced 2024-11-25 05:32:20 +00:00
Code Issues Projects Releases Wiki Activity
bjb
A2osX/SHARED/X.SSC.DRV.S.txt
Rémy GIBERT 33d273b220 Kernel 0.94++
2021-05-04 19:31:21 +02:00

878 lines
14 KiB
Plaintext
Raw Permalink Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

NEW
AUTO 3,1
.OP 65C02
.OR $2000
*--------------------------------------
.DO SSCIRQ=1
.TF drv/ssc.i.drv
.ELSE
.TF drv/ssc.drv
.FIN
*--------------------------------------
.DUMMY
.OR ZPBIN
ZS.START
ZPArgPtr .BS 2
ZPSlotPtr .BS 2
ZS.END .ED
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp Dev.Detect cld,jmp abs=DRV
.DA #$61 6502,Level 1 (65c02)
.DA #1 DRV Layout Version 1
.DA 0
.DA CS.END-CS.START Code Length
.DA 0
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
L.MSG.DETECT .DA MSG.DETECT
L.MSG.DETECT.OK .DA MSG.DETECT.OK
L.MSG.DETECT.KO .DA MSG.DETECT.KO
L.DRV.CS.START .DA DRV.CS.START
L.FD.DEV .DA FD.DEV
L.FD.DEV.NAME .DA FD.DEV.NAME
.DA 0 End Of Reloc Table
*--------------------------------------
Dev.Detect >STYA ZPArgPtr
>LDYA L.MSG.DETECT
>SYSCALL PutS
stz ZPSlotPtr
lda #$C1
sta ZPSlotPtr+1
.1 and #$0f
tay
lda A2osX.S,y
bne .3
ldx #DEVSIG.Length-1
.2 ldy DEVSIG.Offset,x
lda (ZPSlotPtr),y
cmp DEVSIG.Value,x
bne .3
dex
bpl .2
bra .4
.3 inc FD.DEV.NAME+3
inc ZPSlotPtr+1 no match, try next slot....
lda ZPSlotPtr+1
cmp #$C8
bne .1
>LDYA L.MSG.DETECT.KO
>SYSCALL PutS
lda #MLI.E.NODEV Not Found in any slot, exiting
sec
.99 rts
.4 lda ZPSlotPtr+1
asl
asl
asl
asl
clc
adc #$8F
sta DEVSLOTn08F
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
lda ZPSlotPtr+1
and #$0F
tay
lda #A2osX.S.COM
sta A2osX.S,y
* clc
.9 rts
*--------------------------------------
Dev.ParseArgs lda (ZPArgPtr)
bne .1
clc
rts
.1 stz DCB+S.DCB.COM.BAUD
stz DCB+S.DCB.COM.BAUD+1
stz DCB+S.DCB.COM.BAUD+2
stz DCB+S.DCB.COM.BAUD+3
.2 jsr DevNextChar
beq .90
cmp #','
beq .3
jsr Dev.IsDigit
bcs .90
jsr Dev.BaudT10pA
bra .2
.3 jsr Dev.CheckBaud
bcs .99
jsr DevNextChar
beq .99
ldx #P2.Cnt-1
.4 cmp P2,x
beq .5
dex
bpl .4
.90 bra .99
.5 lda #%11100000
trb DEVCMD
txa
asl
asl
asl
asl
asl
tsb DEVCMD
jsr DevCheckSep
bcs .99
ldx #P3.Cnt-1
.6 cmp P3,x
beq .7
dex
bpl .6
bra .99
.7 lda #%01100000
trb DEVCTL
txa
asl
asl
asl
asl
asl
tsb DEVCTL
jsr DevCheckSep
bcs .99
ldx #P4.Cnt-1
.8 cmp P4,x
beq .9
dex
bpl .8
bra .99
.9 lda #%10000000
trb DEVCTL
txa
rol
rol
tsb DEVCTL
jsr DevCheckSep
bcs .99
ldx #P5.Cnt-1
.10 cmp P5,x
beq .11
dex
bpl .10
bra .99
.11 stx DEVFLOWCTRL
clc
rts
.99 lda #E.SYN
sec
rts
*--------------------------------------
DevCheckSep jsr DevNextChar
beq .9
cmp #','
bne .9
jsr DevNextChar
beq .9
clc
rts
.9 sec
rts
*--------------------------------------
DevNextChar lda (ZPArgPtr)
beq .9
inc ZPArgPtr
bne .9
inc ZPArgPtr+1
.9 rts
*--------------------------------------
Dev.IsDigit cmp #'0'
bcc .9
cmp #'9'+1
bcs .99
and #$0F
rts
.9 sec
.99 rts
*--------------------------------------
Dev.BaudT10pA pha
>PUSHL DCB+S.DCB.COM.BAUD
>PUSHBI 0
>PUSHBI 0
>PUSHBI 0
>PUSHBI 10
>FPU MUL32
>PUSHBI 0
>PUSHBI 0
>PUSHBI 0
pla
>PUSHA
>FPU ADD32
>PULLL DCB+S.DCB.COM.BAUD
rts
*--------------------------------------
Dev.CheckBaud ldx #0
.1 txa
asl
asl
tay
lda DCB+S.DCB.COM.BAUD
cmp P1,y
bne .7
lda DCB+S.DCB.COM.BAUD+1
cmp P1+1,y
bne .7
lda DCB+S.DCB.COM.BAUD+2
cmp P1+2,y
bne .7
lda DCB+S.DCB.COM.BAUD+3
cmp P1+3,y
bne .7
lda #$F
trb DEVCTL
txa
tsb DEVCTL
clc
rts
.7 inx
cpx #P1.Cnt
bcc .1
rts
*--------------------------------------
CS.END
DEVSIG.Offset .HS 05070B0C
DEVSIG.Value .HS 38180131
DEVSIG.Length .EQ DEVSIG.Value-DEVSIG.Offset
MSG.DETECT .AS "Apple SSC (Super Serial Card,//c Serial Port) Driver"
.DO SSCIRQ=1
.AS " (IRQ Enabled)"
.FIN
.AZ "."
MSG.DETECT.OK .AZ "SSC Installed As Device : %s\r\n"
MSG.DETECT.KO .AZ "No SSC Found."
*--------------------------------------
P1 .DA >115200 Baud
.DA >50
.DA >75
.DA >110
.DA >135
.DA >150
.DA >300
.DA >600
.DA >1200
.DA >1800
.DA >2400
.DA >3600
.DA >4800
.DA >7200
.DA >9600
.DA >19200
P1.Cnt .EQ 16
*--------------------------------------
P2 .AS "NOEMS" Parity
P2.Cnt .EQ *-P2
*--------------------------------------
P3 .AS "8765" Data
P3.Cnt .EQ *-P3
*--------------------------------------
P4 .AS "12" Stop
P4.Cnt .EQ *-P4
*--------------------------------------
P5 .AS "NHX" flow Control
P5.Cnt .EQ *-P5
*--------------------------------------
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 "com1"
*--------------------------------------
* Driver Code
*--------------------------------------
ZPIOCTL .EQ ZPDRV
ZPBufPtr .EQ ZPDRV+2
ZPCount .EQ ZPDRV+4
ZPCount2 .EQ ZPDRV+6
*--------------------------------------
DRV.CS.START cld
jmp (.1,x)
.1 .DA STATUS
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA A2osX.BADCALL
.DA CONTROL
.DA A2osX.BADCALL
.DA OPEN
.DA CLOSE
.DA READ
.DA WRITE
.DO SSCIRQ=1
.DA IRQ
.FIN
.DA 0 end or relocation
*--------------------------------------
STATUS jsr STATUS.CONTROL.Init
ldy #S.IOCTL.S
lda (ZPIOCTL),y
beq .1
cmp #S.IOCTL.S.GETDIB
bne STATUS.DCB
ldy #S.DIB-1
.HS 2C bit abs
.1 ldy #3
.2 lda DIB,y
sta (ZPBufPtr),y
dey
bpl .2
clc
rts
STATUS.DCB cmp #S.IOCTL.S.GETDCB
bne .3
ldy #S.DCB.COM-1
.2 lda DCB,y
sta (ZPBufPtr),y
dey
bpl .2
clc
rts
.3 cmp #S.IOCTL.S.EOF
bne STATUS.9
lda DIB+S.DIB.S
and #S.DIB.S.OPENED
beq OPEN.E
.DO SSCIRQ=1
lda INBUF.TAIL
eor INBUF.HEAD
beq .4 NO DATA? eof = TRUE
lda #1
.4 dec
clc
rts
.ELSE
ldx DEVSLOTn08F
lda SSC.STATUS-$8F,x
and #SSC.STATUS.RDRF
beq .4
lda #1
.4 dec
.FIN
.8 clc
rts
STATUS.9 lda #MLI.E.BADCTL
sec
rts
*--------------------------------------
CONTROL jsr STATUS.CONTROL.Init
ldy #S.IOCTL.C
lda (ZPIOCTL),y
cmp #S.IOCTL.C.SETDCB
bne STATUS.9
ldy #S.DCB.COM-1
.2 lda (ZPBufPtr),y
sta DCB,y
dey
bpl .2
*--------------------------------------
OPEN lda DIB+S.DIB.S
bit #S.DIB.S.OPENED
beq OPEN.1
OPEN.E lda #MLI.E.OPEN
sec
rts
OPEN.1 php
sei
.DO SSCIRQ=1
>LDYAI 256
>SYSCALL2 NewStkObj
bcs .99
stx hINBUF
>STYA READ.INBUF+1
>STYA IRQ.INBUF+1
>LDYAI 256
>SYSCALL2 NewStkObj
bcs .90
stx hOUTBUF
>STYA WRITE.OUTBUF+1
>STYA IRQ.OUTBUF+1
stz INBUF.HEAD
stz INBUF.TAIL
stz OUTBUF.HEAD
stz OUTBUF.TAIL
.FIN
ldx DEVSLOTn08F
stz SSC.RESET-$8F,x
lda DEVCTL
sta SSC.CTL-$8F,x
lda DEVCMD
sta SSC.CMD-$8F,x
lda SSC.DATA-$8F,x discard any garbage byte
lda SSC.STATUS-$8F,x clear any IRQ pending
lda #S.DIB.S.OPENED
tsb DIB+S.DIB.S
plp
clc
rts
.DO SSCIRQ=1
.90 pha
lda hINBUF
>SYSCALL FreeStkObj
pla
.99 plp
sec
rts
.FIN
*--------------------------------------
CLOSE lda DIB+S.DIB.S
bit #S.DIB.S.OPENED
beq OPEN.E
php
sei
ldx DEVSLOTn08F
stz SSC.RESET-$8F,x
.DO SSCIRQ=1
lda hINBUF
>SYSCALL FreeStkObj
lda hOUTBUF
>SYSCALL FreeStkObj
.FIN
lda #S.DIB.S.OPENED
trb DIB+S.DIB.S
plp
clc
rts
*--------------------------------------
READ php
sei
jsr READ.WRITE.Init
stz ZPCount2
stz ZPCount2+1
.DO SSCIRQ=1
sta SETREADAUX
.FIN
READ.10 inc ZPCount
bne READ.11
inc ZPCount+1
beq READ.8
READ.11 .DO SSCIRQ=1
ldy INBUF.TAIL
cpy INBUF.HEAD
beq READ.2
READ.INBUF lda $FFFF,y SELF MODIFIED
inc INBUF.TAIL
sta (ZPBufPtr)
inc ZPBufPtr
bne READ.12
inc ZPBufPtr+1
READ.12 inc ZPCount2
bne READ.10
inc ZPCount2+1
bra READ.10
.FIN
READ.2 lda SSC.STATUS-$8F,x
bit #SSC.STATUS.nDCD true when 0
bne READ.9
bit #SSC.STATUS.RDRF incoming char?
beq READ.8
lda SSC.DATA-$8F,x
sta (ZPBufPtr)
inc ZPBufPtr
bne READ.13
inc ZPBufPtr+1
READ.13 inc ZPCount2
bne READ.2
inc ZPCount2+1
bra READ.2
READ.8 lda ZPCount2
bne READ.81
ora ZPCount2+1
beq READ.99
lda ZPCount2
READ.81 ldy #S.IOCTL.BYTECNT
sta (ZPIOCTL),y
iny
lda ZPCount2+1
sta (ZPIOCTL),y
.DO SSCIRQ=1
sta CLRREADAUX
.FIN
plp
clc
rts
READ.9 lda #MLI.E.IO
.HS 2C BIT ABS
READ.99 lda #E.NODATA
.DO SSCIRQ=1
sta CLRREADAUX
.FIN
plp
sec
rts
*--------------------------------------
WRITE php
sei
jsr READ.WRITE.Init
.DO SSCIRQ=1
sta SETWRITEAUX
.FIN
WRITE.2 inc ZPCount
bne WRITE.3
inc ZPCount+1
beq WRITE.8
WRITE.3 .DO SSCIRQ=1
lda SSC.STATUS-$8F,x
bit #SSC.STATUS.nDCD true when 0
bne WRITE.9
lda OUTBUF.HEAD
cmp OUTBUF.TAIL Buffer Empty?
bne WRITE.6 not empty, queue char
lda SSC.STATUS-$8F,x
and #SSC.STATUS.TDRE Register Empty ?
beq WRITE.5 not empty, queue char
lda (ZPBufPtr) yes, write directly to ACIA
sta SSC.DATA-$8F,x
inc ZPBufPtr
bne WRITE.2
inc ZPBufPtr+1
bra WRITE.2
WRITE.5 lda OUTBUF.HEAD
WRITE.6 tay
inc
cmp OUTBUF.TAIL
beq WRITE.99 Buffer Full!!
sta OUTBUF.HEAD
lda (ZPBufPtr)
WRITE.OUTBUF sta $FFFF,y SELF MODIFIED
inc ZPBufPtr
bne WRITE.2
inc ZPBufPtr+1
bra WRITE.2
.ELSE
WRITE.4 lda SSC.STATUS-$8F,x
bit #SSC.STATUS.nDCD true when 0
bne WRITE.9
bit #SSC.STATUS.TDRE Outgoing char?
beq WRITE.4
lda (ZPBufPtr)
sta SSC.DATA-$8F,x
inc ZPBufPtr
bne WRITE.2
inc ZPBufPtr+1
bra WRITE.2
.FIN
WRITE.8 .DO SSCIRQ=1
sta CLRWRITEAUX
.FIN
plp
clc
rts
WRITE.9 lda #MLI.E.IO
.HS 2C BIT ABS
WRITE.99 lda #E.NODATA
.DO SSCIRQ=1
sta CLRWRITEAUX
.FIN
plp
sec
rts
*--------------------------------------
READ.WRITE.Init ldx DEVSLOTn08F
STATUS.CONTROL.Init
>STYA ZPIOCTL
ldy #S.IOCTL.BUFPTR
lda (ZPIOCTL),y
sta ZPBufPtr
iny
lda (ZPIOCTL),y
sta ZPBufPtr+1
iny #S.IOCTL.BYTECNT
lda (ZPIOCTL),y
eor #$ff
sta ZPCount
iny
lda (ZPIOCTL),y
eor #$ff
sta ZPCount+1
rts
*--------------------------------------
* IRQ Handler
* on exit, CC if handled
*--------------------------------------
.DO SSCIRQ=1
IRQ ldx DEVSLOTn08F
lda SSC.STATUS-$8F,x
* and #SSC.STATUS.IRQ Useless
bpl IRQ.9 IRQ from this device ? no, exit !!!!Applewin bug #308!!!!
sta SETREADAUX
sta SETWRITEAUX
bit #SSC.STATUS.RDRF incoming char?
beq IRQ.2
*------------ IRQ In
pha
lda INBUF.HEAD
tay save actual head for later
inc
cmp INBUF.TAIL
beq IRQ.1 buffer full, discard and exit
sta INBUF.HEAD
lda SSC.DATA-$8F,x read data to clear IRQ
IRQ.INBUF sta $FFFF,y SELF MODIFIED
IRQ.1 pla
*------------ IRQ Out
IRQ.2 bit #SSC.STATUS.TDRE
beq IRQ.8 no transmission possible....
ldy OUTBUF.TAIL something to transmit ?
cpy OUTBUF.HEAD
beq IRQ.8 in that case, HOW TO CLEAR IRQ ????
IRQ.OUTBUF lda $FFFF,y SELF MODIFIED
sta SSC.DATA-$8F,x write data to clear IRQ
inc OUTBUF.TAIL
IRQ.8 sta CLRREADAUX
sta CLRWRITEAUX
clc
rts
IRQ.9 sec
rts
.FIN
*--------------------------------------
DRV.CS.END
DEVSLOTn08F .BS 1
.DO SSCIRQ=1
DEVCMD .DA #SSC.CMD.NOP+SSC.CMD.TEIRQ+SSC.CMD.DTR
DEVCTL .DA #SSC.CTL.1S+SSC.CTL.8D+SSC.CTL.CLKINT+SSC.CTL.B9600
.ELSE
DEVCMD .DA #SSC.CMD.NOP+SSC.CMD.TE+SSC.CMD.RIRQDIS+SSC.CMD.DTR
DEVCTL .DA #SSC.CTL.1S+SSC.CTL.8D+SSC.CTL.CLKINT+SSC.CTL.B115200
.FIN
DEVFLOWCTRL .BS 1
.DO SSCIRQ=1
INBUF.TAIL .BS 1
INBUF.HEAD .BS 1
OUTBUF.TAIL .BS 1
OUTBUF.HEAD .BS 1
hINBUF .BS 1
hOUTBUF .BS 1
.FIN
*--------------------------------------
DIB .DO SSCIRQ=1
.DA #S.DIB.S.WRITE+S.DIB.S.READ+S.DIB.S.IRQ
.ELSE
.DA #S.DIB.S.WRITE+S.DIB.S.READ
.FIN
.DA #0,#0,#0
>PSTR "Serial Card/Port"
.DA #S.DIB.T.CHAR
.DA #0
.DA K.VER
*--------------------------------------
DCB .DA #S.DCB.T.COM
.DA #0 FLAGS
.DO SSCIRQ=1
.DA >9600 BAUD (DWORD)
.ELSE
.DA >115200
.FIN
.DA #8 DATA
.DA #1 STOP
.DA #'N' PARITY
.DA #'N' FLOW
*--------------------------------------
DRV.END
MAN
SAVE usr/src/shared/x.ssc.drv.s
LOAD usr/src/drv/ssc.drv.s
ASM
Reference in New Issue View Git Blame Copy Permalink