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authorTakashi Iwai <tiwai@suse.de>2009-07-29 14:23:09 +0200
committerTakashi Iwai <tiwai@suse.de>2009-07-29 14:28:37 +0200
commit62558ce15759ee93223132258588320967e1e521 (patch)
treef2c7f7b7fb63105ce56e11934fb712ce76a86c44
parent50c62f068ee67b5a0178855f502f4ea2ee931eed (diff)
ALSA: hda - Avoid overwrite of jack events with STAC/IDT
Since only one event can be associated to a (pin) widget, it's safer to avoid the multiple mapping. This patch fixes the behavior of the STAC/IDT codec driver. Now stac_get_event() doesn't take the type argument but simply returns the first hit element. Then enable_pin_detect() checks the validity of the type, and returns non-zero only if a valid entry. The caller can call stac_issue_unsol_event() after checking the return value. Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/hda/patch_sigmatel.c59
1 files changed, 30 insertions, 29 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 66b1f3cfc87..307e86ceede 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2620,8 +2620,7 @@ static int stac92xx_hp_switch_get(struct snd_kcontrol *kcontrol,
return 0;
}
-static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid,
- unsigned char type);
+static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid);
static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
@@ -2635,7 +2634,7 @@ static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
/* check to be sure that the ports are upto date with
* switch changes
*/
- stac_issue_unsol_event(codec, nid, STAC_HP_EVENT);
+ stac_issue_unsol_event(codec, nid);
return 1;
}
@@ -2768,7 +2767,7 @@ static int stac92xx_io_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
* appropriately according to the pin direction
*/
if (spec->hp_detect)
- stac_issue_unsol_event(codec, nid, STAC_HP_EVENT);
+ stac_issue_unsol_event(codec, nid);
return 1;
}
@@ -4107,14 +4106,14 @@ static int stac_add_event(struct sigmatel_spec *spec, hda_nid_t nid,
}
static struct sigmatel_event *stac_get_event(struct hda_codec *codec,
- hda_nid_t nid, unsigned char type)
+ hda_nid_t nid)
{
struct sigmatel_spec *spec = codec->spec;
struct sigmatel_event *event = spec->events.list;
int i;
for (i = 0; i < spec->events.used; i++, event++) {
- if (event->nid == nid && event->type == type)
+ if (event->nid == nid)
return event;
}
return NULL;
@@ -4134,24 +4133,32 @@ static struct sigmatel_event *stac_get_event_from_tag(struct hda_codec *codec,
return NULL;
}
-static void enable_pin_detect(struct hda_codec *codec, hda_nid_t nid,
- unsigned int type)
+/* check if given nid is a valid pin and no other events are assigned
+ * to it. If OK, assign the event, set the unsol flag, and returns 1.
+ * Otherwise, returns zero.
+ */
+static int enable_pin_detect(struct hda_codec *codec, hda_nid_t nid,
+ unsigned int type)
{
struct sigmatel_event *event;
int tag;
if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
- return;
- event = stac_get_event(codec, nid, type);
- if (event)
+ return 0;
+ event = stac_get_event(codec, nid);
+ if (event) {
+ if (event->type != type)
+ return 0;
tag = event->tag;
- else
+ } else {
tag = stac_add_event(codec->spec, nid, type, 0);
- if (tag < 0)
- return;
+ if (tag < 0)
+ return 0;
+ }
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_UNSOLICITED_ENABLE,
AC_USRSP_EN | tag);
+ return 1;
}
static int is_nid_hp_pin(struct auto_pin_cfg *cfg, hda_nid_t nid)
@@ -4250,8 +4257,7 @@ static int stac92xx_init(struct hda_codec *codec)
stac92xx_auto_set_pinctl(codec, spec->autocfg.line_out_pins[0],
AC_PINCTL_OUT_EN);
/* fake event to set up pins */
- stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0],
- STAC_HP_EVENT);
+ stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0]);
} else {
stac92xx_auto_init_multi_out(codec);
stac92xx_auto_init_hp_out(codec);
@@ -4284,10 +4290,9 @@ static int stac92xx_init(struct hda_codec *codec)
}
conf = snd_hda_codec_get_pincfg(codec, nid);
if (get_defcfg_connect(conf) != AC_JACK_PORT_FIXED) {
- enable_pin_detect(codec, nid,
- STAC_INSERT_EVENT);
- stac_issue_unsol_event(codec, nid,
- STAC_INSERT_EVENT);
+ if (enable_pin_detect(codec, nid,
+ STAC_INSERT_EVENT))
+ stac_issue_unsol_event(codec, nid);
}
}
}
@@ -4332,10 +4337,8 @@ static int stac92xx_init(struct hda_codec *codec)
stac_toggle_power_map(codec, nid, 1);
continue;
}
- if (!stac_get_event(codec, nid, STAC_INSERT_EVENT)) {
- enable_pin_detect(codec, nid, STAC_PWR_EVENT);
- stac_issue_unsol_event(codec, nid, STAC_PWR_EVENT);
- }
+ if (enable_pin_detect(codec, nid, STAC_PWR_EVENT))
+ stac_issue_unsol_event(codec, nid);
}
if (spec->dac_list)
stac92xx_power_down(codec);
@@ -4598,10 +4601,9 @@ static void stac92xx_report_jack(struct hda_codec *codec, hda_nid_t nid)
}
}
-static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid,
- unsigned char type)
+static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid)
{
- struct sigmatel_event *event = stac_get_event(codec, nid, type);
+ struct sigmatel_event *event = stac_get_event(codec, nid);
if (!event)
return;
codec->patch_ops.unsol_event(codec, (unsigned)event->tag << 26);
@@ -4712,8 +4714,7 @@ static int stac92xx_resume(struct hda_codec *codec)
snd_hda_codec_resume_cache(codec);
/* fake event to set up pins again to override cached values */
if (spec->hp_detect)
- stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0],
- STAC_HP_EVENT);
+ stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0]);
return 0;
}