ALSA: hda - Add auto_mute_via_amp flag to generic parser

Add a new flag, auto_mute_via_amp, to determine the behavior of the
headphone / line-out auto-mute.  When this flag is set, the generic
driver mutes the speaker and line outputs via the amp mute of each
pin, instead of changing the pin control values.

This is introduced for devices that don't work expectedly with the pin
control values; for example, some devices are known to keep enabling
the speaker outputs no matter which pin control values are set on the
speaker pins.

The driver doesn't check actually whether the pins have the output amp
caps, but assumes that the proper mixer (mute) controls are created on
all these pins.  If not the case, you can't use this flag for your
device.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 76200314ee95..e199a852388b 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -209,6 +209,7 @@ struct hda_gen_spec {
 	unsigned int master_mute:1;	/* master mute over all */
 	unsigned int keep_vref_in_automute:1; /* Don't clear VREF in automute */
 	unsigned int line_in_auto_switch:1; /* allow line-in auto switch */
+	unsigned int auto_mute_via_amp:1; /* auto-mute via amp instead of pinctl */
 
 	/* parser behavior flags; set before snd_hda_gen_parse_auto_config() */
 	unsigned int suppress_auto_mute:1; /* suppress input jack auto mute */
@@ -237,6 +238,9 @@ struct hda_gen_spec {
 	unsigned int have_aamix_ctl:1;
 	unsigned int hp_mic_jack_modes:1;
 
+	/* additional mute flags (only effective with auto_mute_via_amp=1) */
+	u64 mute_bits;
+
 	/* badness tables for output path evaluations */
 	const struct badness_table *main_out_badness;
 	const struct badness_table *extra_out_badness;