From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 23 Jul 2007 15:38:44 +0000 (+0200)
Subject: [ALSA] ymfpci: fix volume handling of the 44.1 kHz slot
X-Git-Tag: v2.6.24-rc1~832^2~253
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=177a7cdbd1d88be5cbf957a2793a59ffa50cbef9;p=pandora-kernel.git

[ALSA] ymfpci: fix volume handling of the 44.1 kHz slot

The existing code for handling the 44.1 slot's volume has two problems:
the volume is not affected by the 'Wave Playback Volume' mixer control,
and the BUF441OUTVOL register, which is used to control the per-
substream volume for this slot, uses a different scale than the gain
fields of the other slots.
This patch makes the BUF441OUTVOL register a shadow of the
NATIVEDACOUTVOL register so that the Wave volume is consistent for all
substreams.
As a consequence of this, the per-substream PCM volume control gets no
longer activated for the substream using this slot.  The code for
(de)activating the mixer control is moved from the open/close to the
prepare/trigger_stop callbacks so that it is able to determine the
substream's slot.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---

Reading git-diff-tree failed