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authorTakashi Iwai <tiwai@suse.de>2015-06-11 10:51:28 +0200
committerTakashi Iwai <tiwai@suse.de>2015-06-11 11:55:48 +0200
commita686ec4c5f28eb1b384e4b87b08543155c970072 (patch)
treed35a87067360948ffad9e2dae8cfeb9d97d5925e /include/sound
parentbf06848bdbe549175d25d2327ab9f37d4bd556b7 (diff)
downloadlinux-a686ec4c5f28eb1b384e4b87b08543155c970072.tar.bz2
ALSA: hda - Re-add the lost fake mute support
Yet another regression by the transition to regmap cache; for better usability, we had the fake mute control using the zero amp value for Conexant codecs, and this was forgotten in the new hda core code. Since the bits 4-7 are unused for the amp registers (as we follow the syntax of AMP_GET verb), the bit 4 is now used to indicate the fake mute. For setting this flag, snd_hda_codec_amp_update() becomes a function from a simple macro. The bonus is that it gained a proper function description. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/hda_regmap.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/hda_regmap.h b/include/sound/hda_regmap.h
index 53a18b3635e2..df705908480a 100644
--- a/include/sound/hda_regmap.h
+++ b/include/sound/hda_regmap.h
@@ -9,6 +9,8 @@
#include <sound/core.h>
#include <sound/hdaudio.h>
+#define AC_AMP_FAKE_MUTE 0x10 /* fake mute bit set to amp verbs */
+
int snd_hdac_regmap_init(struct hdac_device *codec);
void snd_hdac_regmap_exit(struct hdac_device *codec);
int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,