[alsa-devel] [PATCH 20/20] ALSA: hda - Allow user to give hints for codec parser behavior

[Takashi Iwai]

Through the hints via sysfs or patch, user can set specific behavior
flags for the generic parser now.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/hda_auto_parser.c |  3 ++
 sound/pci/hda/hda_generic.c     | 70 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)

diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index 55ed857..33b3ece 100644
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -126,6 +126,9 @@ int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
 	struct auto_out_pin hp_out[ARRAY_SIZE(cfg->hp_pins)];
 	int i;
 
+	if (!snd_hda_get_int_hint(codec, "parser_flags", &i))
+		cond_flags = i;
+
 	memset(cfg, 0, sizeof(*cfg));
 
 	memset(line_out, 0, sizeof(line_out));
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 55b7897..4bc4cd9 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -84,6 +84,74 @@ void snd_hda_gen_spec_free(struct hda_gen_spec *spec)
 EXPORT_SYMBOL_HDA(snd_hda_gen_spec_free);
 
 /*
+ * store user hints
+ */
+static void parse_user_hints(struct hda_codec *codec)
+{
+	struct hda_gen_spec *spec = codec->spec;
+	int val;
+
+	val = snd_hda_get_bool_hint(codec, "jack_detect");
+	if (val >= 0)
+		codec->no_jack_detect = !val;
+	val = snd_hda_get_bool_hint(codec, "inv_jack_detect");
+	if (val >= 0)
+		codec->inv_jack_detect = !!val;
+	val = snd_hda_get_bool_hint(codec, "trigger_sense");
+	if (val >= 0)
+		codec->no_trigger_sense = !val;
+	val = snd_hda_get_bool_hint(codec, "inv_eapd");
+	if (val >= 0)
+		codec->inv_eapd = !!val;
+	val = snd_hda_get_bool_hint(codec, "pcm_format_first");
+	if (val >= 0)
+		codec->pcm_format_first = !!val;
+	val = snd_hda_get_bool_hint(codec, "sticky_stream");
+	if (val >= 0)
+		codec->no_sticky_stream = !val;
+	val = snd_hda_get_bool_hint(codec, "spdif_status_reset");
+	if (val >= 0)
+		codec->spdif_status_reset = !!val;
+	val = snd_hda_get_bool_hint(codec, "pin_amp_workaround");
+	if (val >= 0)
+		codec->pin_amp_workaround = !!val;
+	val = snd_hda_get_bool_hint(codec, "single_adc_amp");
+	if (val >= 0)
+		codec->single_adc_amp = !!val;
+
+	val = snd_hda_get_bool_hint(codec, "auto_mic");
+	if (val >= 0)
+		spec->suppress_auto_mic = !val;
+	val = snd_hda_get_bool_hint(codec, "line_in_auto_switch");
+	if (val >= 0)
+		spec->line_in_auto_switch = !!val;
+	val = snd_hda_get_bool_hint(codec, "need_dac_fix");
+	if (val >= 0)
+		spec->need_dac_fix = !!val;
+	val = snd_hda_get_bool_hint(codec, "primary_hp");
+	if (val >= 0)
+		spec->no_primary_hp = !val;
+	val = snd_hda_get_bool_hint(codec, "multi_cap_vol");
+	if (val >= 0)
+		spec->multi_cap_vol = !!val;
+	val = snd_hda_get_bool_hint(codec, "inv_dmic_split");
+	if (val >= 0)
+		spec->inv_dmic_split = !!val;
+	val = snd_hda_get_bool_hint(codec, "indep_hp");
+	if (val >= 0)
+		spec->indep_hp = !!val;
+	val = snd_hda_get_bool_hint(codec, "add_stereo_mix_input");
+	if (val >= 0)
+		spec->add_stereo_mix_input = !!val;
+	val = snd_hda_get_bool_hint(codec, "add_out_jack_modes");
+	if (val >= 0)
+		spec->add_out_jack_modes = !!val;
+
+	if (!snd_hda_get_int_hint(codec, "mixer_nid", &val))
+		spec->mixer_nid = val;
+}
+
+/*
  * pin control value accesses
  */
 
@@ -3304,6 +3372,8 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
 	struct hda_gen_spec *spec = codec->spec;
 	int err;
 
+	parse_user_hints(codec);
+
 	if (cfg != &spec->autocfg) {
 		spec->autocfg = *cfg;
 		cfg = &spec->autocfg;
-- 
1.8.1