From 01a61e12b4602c82bde9797d0e153f3e53c95b04 Mon Sep 17 00:00:00 2001
From: Takashi Iwai
Date: Fri, 28 Oct 2011 00:03:22 +0200
Subject: ALSA: hda - Create jack-detection kcontrols

Create kcontrols for pin jack-detections, which work similarly like
jack-input layer.  Each control will notify when the jack is plugged or
unplugged, and also user can read the value at any time via the normal
control API.

The control elements are created with iface=CARD, so that they won't
appear in the mixer apps.

So far, only the pins that enabled the jack-detection are registered.
For covering all pins, the transition of the common unsol-tag handling
would be needed.  Stay tuned.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_cirrus.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

(limited to 'sound/pci/hda/patch_cirrus.c')

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 6f158777f71a..135fd49cd49d 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -1192,11 +1192,14 @@ static int cs_init(struct hda_codec *codec)
 	init_output(codec);
 	init_input(codec);
 	init_digital(codec);
+	snd_hda_jack_report_sync(codec);
+
 	return 0;
 }
 
 static int cs_build_controls(struct hda_codec *codec)
 {
+	struct cs_spec *spec = codec->spec;
 	int err;
 
 	err = build_output(codec);
@@ -1211,7 +1214,15 @@ static int cs_build_controls(struct hda_codec *codec)
 	err = build_digital_input(codec);
 	if (err < 0)
 		return err;
-	return cs_init(codec);
+	err = cs_init(codec);
+	if (err < 0)
+		return err;
+
+	err = snd_hda_jack_add_kctls(codec, &spec->autocfg);
+	if (err < 0)
+		return err;
+
+	return 0;
 }
 
 static void cs_free(struct hda_codec *codec)
@@ -1234,6 +1245,7 @@ static void cs_unsol_event(struct hda_codec *codec, unsigned int res)
 		cs_automic(codec);
 		break;
 	}
+	snd_hda_jack_report_sync(codec);
 }
 
 static const struct hda_codec_ops cs_patch_ops = {
@@ -1611,6 +1623,7 @@ static int cs421x_init(struct hda_codec *codec)
 	init_output(codec);
 	init_input(codec);
 	init_cs421x_digital(codec);
+	snd_hda_jack_report_sync(codec);
 
 	return 0;
 }
@@ -1786,6 +1799,7 @@ static int build_cs421x_output(struct hda_codec *codec)
 
 static int cs421x_build_controls(struct hda_codec *codec)
 {
+	struct cs_spec *spec = codec->spec;
 	int err;
 
 	err = build_cs421x_output(codec);
@@ -1797,7 +1811,15 @@ static int cs421x_build_controls(struct hda_codec *codec)
 	err = build_digital_output(codec);
 	if (err < 0)
 		return err;
-	return cs421x_init(codec);
+	err =  cs421x_init(codec);
+	if (err < 0)
+		return err;
+
+	err = snd_hda_jack_add_kctls(codec, &spec->autocfg);
+	if (err < 0)
+		return err;
+
+	return 0;
 }
 
 static void cs421x_unsol_event(struct hda_codec *codec, unsigned int res)
@@ -1814,6 +1836,7 @@ static void cs421x_unsol_event(struct hda_codec *codec, unsigned int res)
 		cs_automic(codec);
 		break;
 	}
+	snd_hda_jack_report_sync(codec);
 }
 
 static int parse_cs421x_input(struct hda_codec *codec)
-- 
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