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Diffstat (limited to 'sound/pci/hda/hda_jack.h')
-rw-r--r--sound/pci/hda/hda_jack.h86
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 00000000000..f8f97c71c9c
--- /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 */