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authorTakashi Iwai <tiwai@suse.de>2011-10-14 15:22:34 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-11-11 09:42:31 -0800
commit46bf15fc7eae441bf3e94edf20f0ae0f4e5b56de (patch)
tree194126e5c349ae2095a037be8c9dff91e166e167 /sound
parentfcc517bdf7ffc8ecf46c20bef7cba8d154d0420e (diff)
downloadlinux-linaro-precise-46bf15fc7eae441bf3e94edf20f0ae0f4e5b56de.tar.gz
ALSA: hda - Keep EAPD turned on for old Conexant chips
commit 254f296840b64b034a4c850d45dbde7c040f0819 upstream. In the old Conexant chips (5045, 5047, 5051 and 5066), a single EAPD may handle both headphone and speaker outputs while it's assigned only to one of them. Turning off dynamically leads to the unexpected silent output in such a configuration with the auto-mute function. Since it's difficult to know how the EAPD is handled in the actual h/w implementation, better to keep EAPD on while running for such codecs. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_conexant.c43
1 files changed, 22 insertions, 21 deletions
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 76752d8ea73..502b05b1c8e 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -136,6 +136,7 @@ struct conexant_spec {
unsigned int thinkpad:1;
unsigned int hp_laptop:1;
unsigned int asus:1;
+ unsigned int pin_eapd_ctrls:1;
unsigned int adc_switching:1;
@@ -3473,12 +3474,14 @@ static void cx_auto_turn_eapd(struct hda_codec *codec, int num_pins,
static void do_automute(struct hda_codec *codec, int num_pins,
hda_nid_t *pins, bool on)
{
+ struct conexant_spec *spec = codec->spec;
int i;
for (i = 0; i < num_pins; i++)
snd_hda_codec_write(codec, pins[i], 0,
AC_VERB_SET_PIN_WIDGET_CONTROL,
on ? PIN_OUT : 0);
- cx_auto_turn_eapd(codec, num_pins, pins, on);
+ if (spec->pin_eapd_ctrls)
+ cx_auto_turn_eapd(codec, num_pins, pins, on);
}
static int detect_jacks(struct hda_codec *codec, int num_pins, hda_nid_t *pins)
@@ -3503,9 +3506,12 @@ static void cx_auto_update_speakers(struct hda_codec *codec)
int on = 1;
/* turn on HP EAPD when HP jacks are present */
- if (spec->auto_mute)
- on = spec->hp_present;
- cx_auto_turn_eapd(codec, cfg->hp_outs, cfg->hp_pins, on);
+ if (spec->pin_eapd_ctrls) {
+ if (spec->auto_mute)
+ on = spec->hp_present;
+ cx_auto_turn_eapd(codec, cfg->hp_outs, cfg->hp_pins, on);
+ }
+
/* mute speakers in auto-mode if HP or LO jacks are plugged */
if (spec->auto_mute)
on = !(spec->hp_present ||
@@ -3932,20 +3938,10 @@ static void cx_auto_parse_beep(struct hda_codec *codec)
#define cx_auto_parse_beep(codec)
#endif
-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;
-}
-
-/* parse extra-EAPD that aren't assigned to any pins */
+/* parse EAPDs */
static void cx_auto_parse_eapd(struct hda_codec *codec)
{
struct conexant_spec *spec = codec->spec;
- struct auto_pin_cfg *cfg = &spec->autocfg;
hda_nid_t nid, end_nid;
end_nid = codec->start_nid + codec->num_nodes;
@@ -3954,14 +3950,18 @@ static void cx_auto_parse_eapd(struct hda_codec *codec)
continue;
if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD))
continue;
- 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))
- continue;
spec->eapds[spec->num_eapds++] = nid;
if (spec->num_eapds >= ARRAY_SIZE(spec->eapds))
break;
}
+
+ /* NOTE: below is a wild guess; if we have more than two EAPDs,
+ * it's a new chip, where EAPDs are supposed to be associated to
+ * pins, and we can control EAPD per pin.
+ * OTOH, if only one or two EAPDs are found, it's an old chip,
+ * thus it might control over all pins.
+ */
+ spec->pin_eapd_ctrls = spec->num_eapds > 2;
}
static int cx_auto_parse_auto_config(struct hda_codec *codec)
@@ -4067,8 +4067,9 @@ static void cx_auto_init_output(struct hda_codec *codec)
}
}
cx_auto_update_speakers(codec);
- /* turn on/off extra EAPDs, too */
- cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true);
+ /* 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);
}
static void cx_auto_init_input(struct hda_codec *codec)