Two changes are made in this checkin.

The first is a change to force the console to stay 8N1, the configuration
of the bug/prom during the first open to the device by init.

The second is to not enable interupts until the port is opened. Previously
receive and CD change interrutps were enabled at config time. If a
character arrived before the port was opened for the first time, it
would crash the system.

diff --git a/sys/arch/mvme68k/dev/cl.c b/sys/arch/mvme68k/dev/cl.c
index 32628db..5408b2a 100644 (file)
--- a/sys/arch/mvme68k/dev/cl.c
+++ b/sys/arch/mvme68k/dev/cl.c
@@ -1,4 +1,4 @@
-/*     $Id: cl.c,v 1.8 1995/12/01 20:39:26 deraadt Exp $ */
+/*     $Id: cl.c,v 1.9 1995/12/16 19:42:39 rahnds Exp $ */
 
 /*
  * Copyright (c) 1995 Dale Rahn. All rights reserved.
@@ -372,10 +372,9 @@ cl_initchannel(sc, channel)
        sc->sc_cl[channel].tty = NULL;
        s = splhigh();
        cl_reg->cl_car  = (u_char) channel;
-       /* async, do we want to try DMA at some point? */
        cl_reg->cl_livr = PCC2_VECBASE + 0xc;/* set vector base at 5C */
-       cl_reg->cl_ier  = 0x88;  /* should change XXX */
-       /* if the port is not the console */
+       /* if the port is not the console, should be init for all ports??*/
+       cl_reg->cl_ier  = 0x00;
        if (sc->sc_cl[channel].cl_consio != 1) {
                cl_reg->cl_cmr  = 0x02; 
                cl_reg->cl_cor1 = 0x17;
@@ -402,15 +401,6 @@ cl_initchannel(sc, channel)
                cl_reg->cl_rtprl        = CL_RX_TIMEOUT;
                cl_reg->cl_rtprh        = 0x00;
        }
-       if (channel == 2) { /* test one channel now */
-               /* shift for tx DMA */
-               /* no shift for rx DMA */
-       /* async only */
-       /* rx only (tx commented out) */
-               cl_reg->cl_cmr  = /* CL_TXDMAINT | */ CL_RXDMAINT; 
-               cl_reg->cl_ier  = 0xa8; 
-               cl_reg->cl_licr = 0x00;
-       }
        sc->cl_reg->cl_ccr = 0x20;
        while (sc->cl_reg->cl_ccr != 0) {
        }
@@ -550,9 +540,15 @@ int clopen (dev, flag, mode, p)
                         */
                        tp->t_iflag = TTYDEF_IFLAG;
                        tp->t_oflag = TTYDEF_OFLAG;
-                       tp->t_cflag = TTYDEF_CFLAG;
                        tp->t_lflag = TTYDEF_LFLAG;
                        tp->t_ispeed = tp->t_ospeed = cldefaultrate;
+
+                       if(sc->sc_cl[channel].cl_consio == 1) {
+                               /* console is 8N1 */
+                               tp->t_cflag = (CREAD | CS8 | HUPCL);
+                       } else {
+                               tp->t_cflag = TTYDEF_CFLAG;
+                       }
                }
                /*
                 * do these all the time
@@ -576,10 +572,17 @@ int clopen (dev, flag, mode, p)
                }
 #endif
                tp->t_state |= TS_CARR_ON;
-#ifdef CL_DMA_WORKS
                {
                        u_char save = sc->cl_reg->cl_car;
                        sc->cl_reg->cl_car = channel;
+                       sc->cl_reg->cl_ier      = 0x88;
+#ifdef CL_DMA_WORKS
+                       {
+                       sc->cl_reg->cl_cmr      =
+                               /* CL_TXDMAINT | */ CL_RXDMAINT; 
+                       sc->cl_reg->cl_ier      = 0xa8;
+                       sc->cl_reg->cl_licr     = 0x00;
+                       }
                        sc->cl_reg->cl_arbadrl  =
                                ((u_long)sc->sc_cl[channel].rxp[0]) & 0xffff;
                        sc->cl_reg->cl_arbadru  =
@@ -615,9 +618,9 @@ if (channel == 2) { /* test one channel now */
                        sc->cl_reg->cl_ccr = 0x20;
                        while (sc->cl_reg->cl_ccr != 0) {
                        }
+#endif /* CL_DMA_WORKS */
                        sc->cl_reg->cl_car = save;
                }
-#endif /* CL_DMA_WORKS */
        } else if (tp->t_state & TS_XCLUDE && p->p_ucred->cr_uid != 0) {
                splx(s);
                return(EBUSY);