Commit 1c70a583 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Allow user to give hints for codec parser behavior 



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

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent bc759721

sound/pci/hda/hda_auto_parser.c

+3 −0
Original line number Diff line number Diff line
@@ -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));

sound/pci/hda/hda_generic.c

+70 −0
Original line number Diff line number Diff line
@@ -83,6 +83,74 @@ 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;