mirror of
https://github.com/cc65/cc65.git
synced 2025-04-08 19:38:55 +00:00
better error handling; rs232_params now uses its parameters
git-svn-id: svn://svn.cc65.org/cc65/trunk@1139 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cpg
parent
d198ba0e26
commit
b39cc5a3a9
@ -18,9 +18,10 @@
|
||||
.import __seterrno, __do_oserror, __oserror
|
||||
.import fddecusage
|
||||
.import fdtoiocb
|
||||
.import __inviocb
|
||||
.import clriocb
|
||||
.import newfd
|
||||
.import _close, pushax, popax
|
||||
.import _close, pushax, popax, popa
|
||||
.importzp ptr1, tmp2, tmp3
|
||||
|
||||
.export _rs232_init, _rs232_params, _rs232_done, _rs232_get
|
||||
@ -35,10 +36,10 @@ rdev: .byte "R:", ATEOL, 0
|
||||
|
||||
.bss
|
||||
|
||||
RECVBUF_SZ = 256
|
||||
|
||||
; receive buffer
|
||||
RECVBUF_SZ = 256
|
||||
recv_buf: .res RECVBUF_SZ
|
||||
|
||||
cm_run: .res 1 ; concurrent mode running?
|
||||
|
||||
.data
|
||||
@ -119,33 +120,23 @@ cioerr: jsr fddecusage ; decrement usage counter of fd as open failed
|
||||
;----------------------------------------------------------------------------
|
||||
;
|
||||
; unsigned char __fastcall__ rs232_params (unsigned char params, unsigned char parity);
|
||||
; /* Set the port parameters. Use a combination of the #defined values above. */
|
||||
;
|
||||
; Set communication parameters.
|
||||
;
|
||||
; @@@ C64 values @@@ fixit
|
||||
; baud rates stops word | parity
|
||||
; --------------------- ----- ----- | ---------
|
||||
; $00=50 $08=9600 $00=1 $00=8 | $00=none
|
||||
; $01=110 $09=19200 $80=2 $20=7 | $20=odd
|
||||
; $02=134.5 $0a=38400 $40=6 | $60=even
|
||||
; $03=300 $0b=57600 $60=5 | $A0=mark
|
||||
; $04=600 $0c=115200 | $E0=space
|
||||
; $05=1200 $0d=230400
|
||||
; $06=2400 $0e=future
|
||||
; $07=4800 $0f=future
|
||||
; params contains baud rate, stop bits and word size
|
||||
; parity contains parity
|
||||
;
|
||||
; 850 manual documents restrictions on the baud rate (not > 300), when not
|
||||
; using 8 bit word size. So only 8 bit is currently tested.
|
||||
;
|
||||
|
||||
; we don't support word sizes != 8 (will never)
|
||||
; ignore parity for now, always none
|
||||
; ignore baud rate for now, always 9600
|
||||
|
||||
; shouldn't this come from a "rs232.inc" ??
|
||||
ErrNotInitialized = $01
|
||||
ErrNoData = $04
|
||||
ErrNotInitialized = $01
|
||||
ErrNoData = $04
|
||||
|
||||
.proc _rs232_params
|
||||
|
||||
sta tmp2
|
||||
lda rshand
|
||||
cmp #$ff
|
||||
bne work ; work only if initialized
|
||||
@ -154,7 +145,7 @@ cioerr: jsr fddecusage ; decrement usage counter of fd as open failed
|
||||
work: lda rshand
|
||||
ldx #0
|
||||
jsr fdtoiocb ; get iocb index into X
|
||||
; bmi inverr ; !?!?
|
||||
bmi inverr ; shouldn't happen
|
||||
tax
|
||||
|
||||
; set handshake lines
|
||||
@ -170,30 +161,38 @@ work: lda rshand
|
||||
sta ICBAH,x
|
||||
sta ICAX2,x
|
||||
jsr CIOV
|
||||
bmi cioerr
|
||||
|
||||
; set baud rate, word size, stop bits and ready monitoring
|
||||
|
||||
lda #36 ; xio 36, baud rate
|
||||
sta ICCOM,x
|
||||
lda #14 ; 9600 baud
|
||||
jsr popa ; get parameter
|
||||
sta ICAX1,x
|
||||
;ICAX2 = 0, monitor nothing
|
||||
jsr CIOV
|
||||
bmi cioerr
|
||||
|
||||
; set translation and parity
|
||||
|
||||
lda #38 ; xio 38, translation and parity
|
||||
sta ICCOM,x
|
||||
lda #32 ; no translation, no parity
|
||||
lda tmp2
|
||||
ora #32 ; no translation
|
||||
sta ICAX1,x
|
||||
jsr CIOV
|
||||
bmi cioerr
|
||||
|
||||
lda #0
|
||||
done: ldx #0
|
||||
rts
|
||||
|
||||
inverr: jmp __inviocb
|
||||
|
||||
.endproc ;_rs232_params
|
||||
|
||||
cioerr: jmp __do_oserror
|
||||
|
||||
|
||||
;----------------------------------------------------------------------------
|
||||
;
|
||||
@ -209,12 +208,8 @@ done: ldx #0
|
||||
|
||||
lda rshand
|
||||
cmp #$ff
|
||||
; bne work
|
||||
; lda rshand+1
|
||||
; cmp #$ff
|
||||
beq done
|
||||
work: lda rshand
|
||||
ldx rshand+1
|
||||
work: ldx rshand+1
|
||||
jsr pushax
|
||||
jsr _close
|
||||
pha
|
||||
@ -241,8 +236,6 @@ done: rts
|
||||
; */
|
||||
;
|
||||
|
||||
.import _cputc
|
||||
|
||||
.proc _rs232_get
|
||||
|
||||
ldy rshand
|
||||
@ -267,27 +260,12 @@ go: ; check whether there is any input available
|
||||
lda #STATIS ; status request, returns bytes pending
|
||||
sta ICCOM,x
|
||||
jsr CIOV
|
||||
; bmi cioerr ; @@@ error handling
|
||||
bmi cioerr ; @@@ error handling
|
||||
|
||||
lda DVSTAT+1 ; get byte count pending
|
||||
ora DVSTAT+2
|
||||
beq nix_da ; no input waiting...
|
||||
|
||||
.ifdef DEBUG
|
||||
pha
|
||||
txa
|
||||
pha
|
||||
tya
|
||||
pha
|
||||
lda #'D'
|
||||
jsr _cputc
|
||||
pla
|
||||
tay
|
||||
pla
|
||||
tax
|
||||
pla
|
||||
.endif
|
||||
|
||||
; input is available: get it!
|
||||
|
||||
lda #GETCHR ; get raw bytes
|
||||
@ -298,7 +276,7 @@ go: ; check whether there is any input available
|
||||
sta ICBAL,x
|
||||
sta ICBAH,x
|
||||
jsr CIOV ; go get it
|
||||
; bmi cioerr ; @@@ error handling
|
||||
bmi cioerr ; @@@ error handling
|
||||
|
||||
ldx #0
|
||||
sta (ptr1,x) ; return received byte
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user