[src/trunk]: src/sys/dev More debuging output - if mix or hw ring inserts sil...

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

details:   https://anonhg.NetBSD.org/src/rev/1f5172523d31
branches:  trunk
changeset: 823674:1f5172523d31
user:      nat <nat%NetBSD.org@localhost>
date:      Tue May 02 06:37:11 2017 +0000

description:
More debuging output - if mix or hw ring inserts silence.

This is to help identify the cause of PR kern/52175.

diffstat:

 sys/dev/audio.c |  10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diffs (39 lines):

diff -r 70d8cd60ba8b -r 1f5172523d31 sys/dev/audio.c
--- a/sys/dev/audio.c   Tue May 02 06:25:05 2017 +0000
+++ b/sys/dev/audio.c   Tue May 02 06:37:11 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.330 2017/05/02 06:25:05 nat Exp $  */
+/*     $NetBSD: audio.c,v 1.331 2017/05/02 06:37:11 nat Exp $  */
 
 /*-
  * Copyright (c) 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.330 2017/05/02 06:25:05 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.331 2017/05/02 06:37:11 nat Exp $");
 
 #include "audio.h"
 #if NAUDIO > 0
@@ -3616,6 +3616,7 @@
            vc->sc_mpr.s.outp, blksize);
 
        if (audio_stream_get_used(&sc->sc_pr.s) < blksize) {
+               DPRINTFN(3, ("HW RING - INSERT SILENCE\n"));
                used = blksize;
                while (used > 0) {
                        cc = sc->sc_pr.s.end - sc->sc_pr.s.inp;
@@ -3805,9 +3806,10 @@
        cb = &sc->sc_pr;
        inp = cb->s.inp;
        cc = blksize - (inp - cb->s.start) % blksize;
-       if (sc->sc_writeme == false)
+       if (sc->sc_writeme == false) {
+               DPRINTFN(3, ("MIX RING EMPTY - INSERT SILENCE\n"));
                audio_fill_silence(&vc->sc_mpr.s.param, inp, cc);
-       else
+       } else
                cc = blksize;
        cb->s.inp = audio_stream_add_inp(&cb->s, cb->s.inp, cc);
        mutex_exit(sc->sc_intr_lock);