[src/trunk]: src/sys/dev/pci Mask MCCB interrupts since they are not currentl...

[gson <gson%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5b0be5b7d5aa
branches:  trunk
changeset: 533558:5b0be5b7d5aa
user:      gson <gson%NetBSD.org@localhost>
date:      Thu Jul 04 02:20:22 2002 +0000

description:
Mask MCCB interrupts since they are not currently handled
and it is not clear how they should be handled.  Fixes
kern/17071.

diffstat:

 sys/dev/pci/eap.c |  13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)

diffs (42 lines):

diff -r bf4722509dee -r 5b0be5b7d5aa sys/dev/pci/eap.c
--- a/sys/dev/pci/eap.c Thu Jul 04 01:50:39 2002 +0000
+++ b/sys/dev/pci/eap.c Thu Jul 04 02:20:22 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: eap.c,v 1.48 2001/11/13 07:48:42 lukem Exp $   */
+/*     $NetBSD: eap.c,v 1.49 2002/07/04 02:20:22 gson Exp $    */
 /*      $OpenBSD: eap.c,v 1.6 1999/10/05 19:24:42 csapuntz Exp $ */
 
 /*
@@ -56,7 +56,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: eap.c,v 1.48 2001/11/13 07:48:42 lukem Exp $");
+__KERNEL_RCSID(0, "$NetBSD: eap.c,v 1.49 2002/07/04 02:20:22 gson Exp $");
 
 #include "midi.h"
 
@@ -811,6 +811,8 @@
                if (sc->sc_pintr)
                        sc->sc_pintr(sc->sc_parg);
        }
+       if (intr & EAP_I_MCCB)
+               panic("eap_intr: unexpected MCCB interrupt");
 #if NMIDI > 0
        if ((intr & EAP_I_UART) && sc->sc_iintr != NULL) {
                u_int32_t data;
@@ -1054,7 +1056,14 @@
                else
                        div |= EAP_SET_PCLKDIV(EAP_XTAL_FREQ / 
                                play->sample_rate - 2);
+#if 0
                div |= EAP_CCB_INTRM;
+#else
+               /*
+                * It is not obvious how to acknowledge MCCB interrupts, so
+                * we had better not enable them.
+                */
+#endif
                EWRITE4(sc, EAP_ICSC, div);
                DPRINTFN(2, ("eap_set_params: set ICSC = 0x%08x\n", div));
        }