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[src/trunk]: src/sys/dev Fix numbering of vchan mixer controls t...



details:   https://anonhg.NetBSD.org/src/rev/aedc374c036a
branches:  trunk
changeset: 319055:aedc374c036a
user:      nat <nat%NetBSD.org@localhost>
date:      Tue May 15 00:19:08 2018 +0000
description:
Fix numbering of vchan mixer controls to correspond to the vchan number in
use.
This makes the numbering of vchans consistient for audioctl and mixerctl.

diffstat:

 sys/dev/audio.c |  37 +++++++++++++++++++++++++++++++------
 1 files changed, 31 insertions(+), 6 deletions(-)

diffs (73 lines):

diff -r 1059634cfba4 -r aedc374c036a sys/dev/audio.c
--- a/sys/dev/audio.c   Mon May 14 22:11:30 2018 +0000
+++ b/sys/dev/audio.c   Tue May 15 00:19:08 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.452 2018/02/06 04:39:18 isaki Exp $        */
+/*     $NetBSD: audio.c,v 1.453 2018/05/15 00:19:08 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 1.452 2018/02/06 04:39:18 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.453 2018/05/15 00:19:08 nat Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -5784,6 +5784,9 @@
 static int
 audio_query_devinfo(struct audio_softc *sc, mixer_devinfo_t *di)
 {
+       struct audio_chan *chan;
+       unsigned int j;
+
        KASSERT(mutex_owned(sc->sc_lock));
 
        if (sc->sc_static_nmixer_states == 0 || sc->sc_nmixer_states == 0)
@@ -5799,18 +5802,40 @@
                        di->type = AUDIO_MIXER_CLASS;
                } else if ((di->index - sc->sc_static_nmixer_states) % 2 == 0) {
                        di->mixer_class = sc->sc_static_nmixer_states -1;
+                       j = 0;
+                       SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
+                               if (j == (di->index -
+                                   sc->sc_static_nmixer_states) / 2)
+                                       break;
+                               j++;
+                       }
+                       if (j != (di->index - sc->sc_static_nmixer_states) / 2)
+                               return 0;
+
+                       j = chan->deschan;
+
                        snprintf(di->label.name, sizeof(di->label.name),
-                           AudioNdac"%d",
-                           (di->index - sc->sc_static_nmixer_states) / 2);
+                           AudioNdac"%d", j);
                        di->type = AUDIO_MIXER_VALUE;
                        di->next = di->prev = AUDIO_MIXER_LAST;
                        di->un.v.num_channels = 1;
                        unitscopy(di, AudioNvolume);
                } else {
                        di->mixer_class = sc->sc_static_nmixer_states -1;
+                       j = 0;
+                       SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
+                               if (j == (di->index -
+                                   sc->sc_static_nmixer_states) / 2)
+                                       break;
+                               j++;
+                       }
+                       if (j != (di->index - sc->sc_static_nmixer_states) / 2)
+                               return 0;
+
+                       j = chan->deschan;
+
                        snprintf(di->label.name, sizeof(di->label.name),
-                           AudioNmicrophone "%d",
-                           (di->index - sc->sc_static_nmixer_states) / 2);
+                           AudioNmicrophone "%d", j);
                        di->type = AUDIO_MIXER_VALUE;
                        di->next = di->prev = AUDIO_MIXER_LAST;
                        di->un.v.num_channels = 1;



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