1 files changed, 105 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
new file mode 100644
index 00000000000..46e1ea83ce3
--- /dev/null
+++ b/sound/pci/hda/hda_jack.h
@@ -0,0 +1,105 @@
+/*
+ * 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 auto_pin_cfg;
+struct hda_jack_tbl;
+
+typedef void (*hda_jack_callback) (struct hda_codec *, struct hda_jack_tbl *);
+
+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 */
+	hda_jack_callback callback;
+	/* 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? */
+	unsigned int phantom_jack:1;    /* a fixed, always present port? */
+	unsigned int block_report:1;    /* in a transitional state - do not report to userspace */
+	hda_nid_t gating_jack;		/* valid when gating jack plugged */
+	hda_nid_t gated_jack;		/* gated is dependent on this jack */
+	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);
+int snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid,
+					unsigned char action,
+					hda_jack_callback cb);
+
+int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid,
+				 hda_nid_t gating_nid);
+
+u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
+
+/* the jack state returned from snd_hda_jack_detect_state() */
+enum {
+	HDA_JACK_NOT_PRESENT, HDA_JACK_PRESENT, HDA_JACK_PHANTOM,
+};
+
+int snd_hda_jack_detect_state(struct hda_codec *codec, hda_nid_t nid);
+
+static inline bool snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
+{
+	return snd_hda_jack_detect_state(codec, nid) != HDA_JACK_NOT_PRESENT;
+}
+
+bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid);
+
+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);
+
+void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);
+
+void snd_hda_jack_poll_all(struct hda_codec *codec);
+
+#endif /* __SOUND_HDA_JACK_H */