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ALSA: hda/conexant - Clear unsol events on unused pins 

It seems that Lenovo machines (or codec chip itself?) leave the unsol
event tags and the enablement-flag from other pins bogusly even on the
unused pins.  Although this shouldn't be too critical, it's better to
clear them up sanely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2012-02-20 12:30:59 +01:00
parent 3e93f5efaf
commit 07cafff288
1 changed files with 45 additions and 0 deletions
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45
sound/pci/hda/patch_conexant.c
View File

@ -3931,6 +3931,50 @@ static void enable_unsol_pins(struct hda_codec *codec, int num_pins,
snd_hda_jack_detect_enable(codec, pins[i], action);
}
static bool found_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums)
{
int i;
for (i = 0; i < nums; i++)
if (list[i] == nid)
return true;
return false;
}
/* is the given NID found in any of autocfg items? */
static bool found_in_autocfg(struct auto_pin_cfg *cfg, hda_nid_t nid)
{
int i;
if (found_in_nid_list(nid, cfg->line_out_pins, cfg->line_outs) ||
found_in_nid_list(nid, cfg->hp_pins, cfg->hp_outs) ||
found_in_nid_list(nid, cfg->speaker_pins, cfg->speaker_outs) ||
found_in_nid_list(nid, cfg->dig_out_pins, cfg->dig_outs))
return true;
for (i = 0; i < cfg->num_inputs; i++)
if (cfg->inputs[i].pin == nid)
return true;
if (cfg->dig_in_pin == nid)
return true;
return false;
}
/* clear unsol-event tags on unused pins; Conexant codecs seem to leave
* invalid unsol tags by some reason
*/
static void clear_unsol_on_unused_pins(struct hda_codec *codec)
{
struct conexant_spec *spec = codec->spec;
struct auto_pin_cfg *cfg = &spec->autocfg;
int i;
for (i = 0; i < codec->init_pins.used; i++) {
struct hda_pincfg *pin = snd_array_elem(&codec->init_pins, i);
if (!found_in_autocfg(cfg, pin->nid))
snd_hda_codec_write(codec, pin->nid, 0,
AC_VERB_SET_UNSOLICITED_ENABLE, 0);
}
}
static void cx_auto_init_output(struct hda_codec *codec)
{
struct conexant_spec *spec = codec->spec;
@ -3971,6 +4015,7 @@ static void cx_auto_init_output(struct hda_codec *codec)
/* turn on all EAPDs if no individual EAPD control is available */
if (!spec->pin_eapd_ctrls)
cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true);
clear_unsol_on_unused_pins(codec);
}
static void cx_auto_init_input(struct hda_codec *codec)