1 files changed, 86 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
new file mode 100644
index 000000000000..f8f97c71c9c1
--- /dev/null
+++ b/sound/pci/hda/hda_jack.h
@@ -0,0 +1,86 @@
+/*
+ * Jack-detection handling for HD-audio
+ *
+ * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __SOUND_HDA_JACK_H
+#define __SOUND_HDA_JACK_H
+
+struct hda_jack_tbl {
+	hda_nid_t nid;
+	unsigned char action;		/* event action (0 = none) */
+	unsigned char tag;		/* unsol event tag */
+	unsigned int private_data;	/* arbitrary data */
+	/* jack-detection stuff */
+	unsigned int pin_sense;		/* cached pin-sense value */
+	unsigned int jack_detect:1;	/* capable of jack-detection? */
+	unsigned int jack_dirty:1;	/* needs to update? */
+	struct snd_kcontrol *kctl;	/* assigned kctl for jack-detection */
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+	int type;
+	struct snd_jack *jack;
+#endif
+};
+
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
+struct hda_jack_tbl *
+snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
+
+struct hda_jack_tbl *
+snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
+void snd_hda_jack_tbl_clear(struct hda_codec *codec);
+
+/**
+ * snd_hda_jack_get_action - get jack-tbl entry for the tag
+ *
+ * Call this from the unsol event handler to get the assigned action for the
+ * event.  This will mark the dirty flag for the later reporting, too.
+ */
+static inline unsigned char
+snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
+{
+	struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
+	if (jack) {
+		jack->jack_dirty = 1;
+		return jack->action;
+	}
+	return 0;
+}
+
+void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
+
+int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
+			       unsigned char action);
+
+u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
+int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
+
+static inline bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
+{
+	if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
+		return false;
+	if (!codec->ignore_misc_bit &&
+	    (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
+	     AC_DEFCFG_MISC_NO_PRESENCE))
+		return false;
+	if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
+		return false;
+	return true;
+}
+
+int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
+			  const char *name, int idx);
+int snd_hda_jack_add_kctls(struct hda_codec *codec,
+			   const struct auto_pin_cfg *cfg);
+
+void snd_hda_jack_report_sync(struct hda_codec *codec);
+
+
+#endif /* __SOUND_HDA_JACK_H */