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Add more debugging code.

This commit is contained in:
mycroft 1996-02-20 12:13:09 +00:00
parent 947cae817e
commit a35f0ac985
2 changed files with 42 additions and 16 deletions
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29
sys/dev/ic/com.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: com.c,v 1.71 1996/02/19 15:23:25 mycroft Exp $ */
/* $NetBSD: com.c,v 1.72 1996/02/20 12:13:09 mycroft Exp $ */
/*-
* Copyright (c) 1993, 1994, 1995, 1996
@ -1010,14 +1010,20 @@ comintr(arg)
struct tty *tp;
u_char lsr, data, msr, delta;
#ifdef COM_DEBUG
int n = 0;
int n;
struct {
u_char lsr, msr;
u_char iir, lsr, msr;
} iter[32];
#endif
#ifdef COM_DEBUG
n = 0;
if (ISSET(iter[n].iir = inb(iobase + com_iir), IIR_NOPEND))
return (0);
#else
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (0);
#endif
tp = sc->sc_tty;
@ -1034,7 +1040,7 @@ comintr(arg)
do {
data = inb(iobase + com_data);
if (ISSET(lsr, LSR_BI)) {
#ifdef COM_DEBUG
#ifdef notdef
printf("break %02x %02x %02x %02x\n",
sc->sc_msr, sc->sc_mcr, sc->sc_lcr,
sc->sc_dtr);
@ -1105,11 +1111,14 @@ comintr(arg)
(*linesw[tp->t_line].l_start)(tp);
}
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (1);
#ifdef COM_DEBUG
if (++n >= 32)
goto ohfudge;
if (ISSET(iter[n].iir = inb(iobase + com_iir), IIR_NOPEND))
return (1);
#else
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (1);
#endif
}
#ifdef COM_DEBUG
@ -1117,10 +1126,14 @@ ohfudge:
printf("comintr: too many iterations");
for (n = 0; n < 32; n++) {
if ((n % 4) == 0)
printf("\ncomintr: iter[%02d]:", n);
printf(" %02x %02x ", iter[n].lsr, iter[n].msr);
printf("\ncomintr: iter[%02d]", n);
printf(" %02x %02x %02x", iter[n].iir, iter[n].lsr, iter[n].msr);
}
printf("\n");
printf("comintr: msr %02x mcr %02x lcr %02x ier %02x\n",
sc->sc_msr, sc->sc_mcr, sc->sc_lcr, sc->sc_ier);
printf("comintr: state %08x cc %d\n", sc->sc_tty->t_state,
sc->sc_tty->t_outq.c_cc);
#endif
}

29
sys/dev/isa/com.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: com.c,v 1.71 1996/02/19 15:23:25 mycroft Exp $ */
/* $NetBSD: com.c,v 1.72 1996/02/20 12:13:09 mycroft Exp $ */
/*-
* Copyright (c) 1993, 1994, 1995, 1996
@ -1010,14 +1010,20 @@ comintr(arg)
struct tty *tp;
u_char lsr, data, msr, delta;
#ifdef COM_DEBUG
int n = 0;
int n;
struct {
u_char lsr, msr;
u_char iir, lsr, msr;
} iter[32];
#endif
#ifdef COM_DEBUG
n = 0;
if (ISSET(iter[n].iir = inb(iobase + com_iir), IIR_NOPEND))
return (0);
#else
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (0);
#endif
tp = sc->sc_tty;
@ -1034,7 +1040,7 @@ comintr(arg)
do {
data = inb(iobase + com_data);
if (ISSET(lsr, LSR_BI)) {
#ifdef COM_DEBUG
#ifdef notdef
printf("break %02x %02x %02x %02x\n",
sc->sc_msr, sc->sc_mcr, sc->sc_lcr,
sc->sc_dtr);
@ -1105,11 +1111,14 @@ comintr(arg)
(*linesw[tp->t_line].l_start)(tp);
}
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (1);
#ifdef COM_DEBUG
if (++n >= 32)
goto ohfudge;
if (ISSET(iter[n].iir = inb(iobase + com_iir), IIR_NOPEND))
return (1);
#else
if (ISSET(inb(iobase + com_iir), IIR_NOPEND))
return (1);
#endif
}
#ifdef COM_DEBUG
@ -1117,10 +1126,14 @@ ohfudge:
printf("comintr: too many iterations");
for (n = 0; n < 32; n++) {
if ((n % 4) == 0)
printf("\ncomintr: iter[%02d]:", n);
printf(" %02x %02x ", iter[n].lsr, iter[n].msr);
printf("\ncomintr: iter[%02d]", n);
printf(" %02x %02x %02x", iter[n].iir, iter[n].lsr, iter[n].msr);
}
printf("\n");
printf("comintr: msr %02x mcr %02x lcr %02x ier %02x\n",
sc->sc_msr, sc->sc_mcr, sc->sc_lcr, sc->sc_ier);
printf("comintr: state %08x cc %d\n", sc->sc_tty->t_state,
sc->sc_tty->t_outq.c_cc);
#endif
}