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MFC r359321:

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Factor out USB audio mixer value range check.

Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2020-04-13 16:22:15 +00:00
parent 7d70098a7c
commit a308210e1f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/stable/10/; revision=359872
1 changed files with 6 additions and 12 deletions
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10
sys/dev/sound/usb/uaudio.c
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@ -5380,25 +5380,19 @@ uaudio_mixer_bsd2value(struct uaudio_mixer_node *mc, int val)
{ {
if (mc->type == MIX_ON_OFF) { if (mc->type == MIX_ON_OFF) {
val = (val != 0); val = (val != 0);
} else if (mc->type == MIX_SELECTOR) { } else if (mc->type != MIX_SELECTOR) {
if ((val < mc->minval) ||
(val > mc->maxval)) {
val = mc->minval;
}
} else {
/* compute actual volume */ /* compute actual volume */
val = (val * mc->mul) / 100; val = (val * mc->mul) / 100;
/* add lower offset */ /* add lower offset */
val = val + mc->minval; val = val + mc->minval;
}
/* make sure we don't write a value out of range */ /* make sure we don't write a value out of range */
if (val > mc->maxval) if (val > mc->maxval)
val = mc->maxval; val = mc->maxval;
else if (val < mc->minval) else if (val < mc->minval)
val = mc->minval; val = mc->minval;
}
DPRINTFN(6, "type=0x%03x val=%d min=%d max=%d val=%d\n", DPRINTFN(6, "type=0x%03x val=%d min=%d max=%d val=%d\n",
mc->type, val, mc->minval, mc->maxval, val); mc->type, val, mc->minval, mc->maxval, val);