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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>
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50c62f068e
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@ -2620,8 +2620,7 @@ static int stac92xx_hp_switch_get(struct snd_kcontrol *kcontrol,
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return 0;
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}
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static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid,
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unsigned char type);
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static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid);
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static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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@ -2635,7 +2634,7 @@ static int stac92xx_hp_switch_put(struct snd_kcontrol *kcontrol,
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/* check to be sure that the ports are upto date with
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* switch changes
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*/
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stac_issue_unsol_event(codec, nid, STAC_HP_EVENT);
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stac_issue_unsol_event(codec, nid);
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return 1;
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}
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@ -2768,7 +2767,7 @@ static int stac92xx_io_switch_put(struct snd_kcontrol *kcontrol, struct snd_ctl_
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* appropriately according to the pin direction
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*/
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if (spec->hp_detect)
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stac_issue_unsol_event(codec, nid, STAC_HP_EVENT);
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stac_issue_unsol_event(codec, nid);
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return 1;
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}
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@ -4107,14 +4106,14 @@ static int stac_add_event(struct sigmatel_spec *spec, hda_nid_t nid,
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}
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static struct sigmatel_event *stac_get_event(struct hda_codec *codec,
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hda_nid_t nid, unsigned char type)
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hda_nid_t nid)
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{
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struct sigmatel_spec *spec = codec->spec;
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struct sigmatel_event *event = spec->events.list;
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int i;
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for (i = 0; i < spec->events.used; i++, event++) {
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if (event->nid == nid && event->type == type)
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if (event->nid == nid)
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return event;
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}
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return NULL;
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@ -4134,24 +4133,32 @@ static struct sigmatel_event *stac_get_event_from_tag(struct hda_codec *codec,
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return NULL;
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}
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static void enable_pin_detect(struct hda_codec *codec, hda_nid_t nid,
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/* check if given nid is a valid pin and no other events are assigned
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* to it. If OK, assign the event, set the unsol flag, and returns 1.
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* Otherwise, returns zero.
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*/
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static int enable_pin_detect(struct hda_codec *codec, hda_nid_t nid,
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unsigned int type)
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{
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struct sigmatel_event *event;
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int tag;
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if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
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return;
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event = stac_get_event(codec, nid, type);
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if (event)
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return 0;
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event = stac_get_event(codec, nid);
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if (event) {
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if (event->type != type)
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return 0;
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tag = event->tag;
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else
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} else {
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tag = stac_add_event(codec->spec, nid, type, 0);
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if (tag < 0)
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return;
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return 0;
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}
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snd_hda_codec_write_cache(codec, nid, 0,
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AC_VERB_SET_UNSOLICITED_ENABLE,
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AC_USRSP_EN | tag);
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return 1;
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}
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static int is_nid_hp_pin(struct auto_pin_cfg *cfg, hda_nid_t nid)
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@ -4250,8 +4257,7 @@ static int stac92xx_init(struct hda_codec *codec)
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stac92xx_auto_set_pinctl(codec, spec->autocfg.line_out_pins[0],
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AC_PINCTL_OUT_EN);
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/* fake event to set up pins */
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stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0],
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STAC_HP_EVENT);
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stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0]);
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} else {
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stac92xx_auto_init_multi_out(codec);
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stac92xx_auto_init_hp_out(codec);
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@ -4284,10 +4290,9 @@ static int stac92xx_init(struct hda_codec *codec)
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}
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conf = snd_hda_codec_get_pincfg(codec, nid);
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if (get_defcfg_connect(conf) != AC_JACK_PORT_FIXED) {
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enable_pin_detect(codec, nid,
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STAC_INSERT_EVENT);
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stac_issue_unsol_event(codec, nid,
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STAC_INSERT_EVENT);
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if (enable_pin_detect(codec, nid,
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STAC_INSERT_EVENT))
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stac_issue_unsol_event(codec, nid);
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}
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}
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}
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@ -4332,10 +4337,8 @@ static int stac92xx_init(struct hda_codec *codec)
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stac_toggle_power_map(codec, nid, 1);
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continue;
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}
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if (!stac_get_event(codec, nid, STAC_INSERT_EVENT)) {
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enable_pin_detect(codec, nid, STAC_PWR_EVENT);
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stac_issue_unsol_event(codec, nid, STAC_PWR_EVENT);
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}
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if (enable_pin_detect(codec, nid, STAC_PWR_EVENT))
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stac_issue_unsol_event(codec, nid);
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}
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if (spec->dac_list)
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stac92xx_power_down(codec);
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@ -4598,10 +4601,9 @@ static void stac92xx_report_jack(struct hda_codec *codec, hda_nid_t nid)
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}
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}
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static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid,
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unsigned char type)
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static void stac_issue_unsol_event(struct hda_codec *codec, hda_nid_t nid)
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{
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struct sigmatel_event *event = stac_get_event(codec, nid, type);
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struct sigmatel_event *event = stac_get_event(codec, nid);
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if (!event)
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return;
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codec->patch_ops.unsol_event(codec, (unsigned)event->tag << 26);
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@ -4712,8 +4714,7 @@ static int stac92xx_resume(struct hda_codec *codec)
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snd_hda_codec_resume_cache(codec);
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/* fake event to set up pins again to override cached values */
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if (spec->hp_detect)
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stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0],
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STAC_HP_EVENT);
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stac_issue_unsol_event(codec, spec->autocfg.hp_pins[0]);
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return 0;
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}
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