diff options
Diffstat (limited to 'sys/isa')
| -rw-r--r-- | sys/isa/sio.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sys/isa/sio.c b/sys/isa/sio.c index c95a708..3b432dd 100644 --- a/sys/isa/sio.c +++ b/sys/isa/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.85 1995/04/02 04:21:09 ache Exp $ + * $Id: sio.c,v 1.86 1995/04/02 19:28:58 ache Exp $ */ #include "sio.h" @@ -162,6 +162,7 @@ typedef u_char bool_t; /* boolean */ /* com device structure */ struct com_s { + int unit; /* unit number */ u_char state; /* miscellaneous flag bits */ bool_t active_out; /* nonzero if the callout device is open */ u_char cfcr_image; /* copy of value written to CFCR */ @@ -590,6 +591,7 @@ sioattach(isdp) * device from sending before we are ready. */ bzero(com, sizeof *com); + com->unit = unit; com->cfcr_image = CFCR_8BITS; com->dtr_wait = 3 * hz; com->no_irq = isdp->id_irq == 0; @@ -933,7 +935,7 @@ comhardclose(com) struct tty *tp; int unit; - unit = DEV_TO_UNIT(com->tp->t_dev); + unit = com->unit; iobase = com->iobase; s = spltty(); com->poll = FALSE; @@ -1025,7 +1027,7 @@ siodtrwakeup(chan) com = (struct com_s *)chan; com->state &= ~CS_DTR_OFF; - kdc_sio[DEV_TO_UNIT(com->tp->t_dev)].kdc_state = DC_IDLE; + kdc_sio[com->unit].kdc_state = DC_IDLE; wakeup(&com->dtr_wait); } @@ -1102,6 +1104,14 @@ siointr1(com) else recv_data = inb(com->data_port); if (line_status & (LSR_PE|LSR_FE|LSR_BI)) { +#ifdef DDB + if ( (line_status & LSR_BI) + && (COMCONSOLE || boothowto & RB_SERIAL) + && com->unit == comconsole) { + Debugger("serial console break"); + goto cont; + } +#endif /* Don't store PE if IGNPAR and BI if IGNBRK, this hack allows "raw" tty optimization |
