From e854747d7593c03c03ee785a04dce9b301ae3a9a Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Wed, 28 Nov 2018 15:32:45 +0800
Subject: [PATCH] ALSA: hda/realtek - Enable headset button support for new codec
Git-commit: e854747d7593c03c03ee785a04dce9b301ae3a9a
Patch-mainline: v5.0-rc1
References: bsc#1121278

This patch will enable headset button for new Chrome platform.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/pci/hda/patch_realtek.c |   66 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5380,6 +5380,66 @@ static void alc285_fixup_invalidate_dacs
 	snd_hda_override_wcaps(codec, 0x03, 0);
 }
 
+static const struct hda_jack_keymap alc_headset_btn_keymap[] = {
+	{ SND_JACK_BTN_0, KEY_PLAYPAUSE },
+	{ SND_JACK_BTN_1, KEY_VOICECOMMAND },
+	{ SND_JACK_BTN_2, KEY_VOLUMEUP },
+	{ SND_JACK_BTN_3, KEY_VOLUMEDOWN },
+	{}
+};
+
+static void alc_headset_btn_callback(struct hda_codec *codec,
+				     struct hda_jack_callback *jack)
+{
+	int report = 0;
+
+	if (jack->unsol_res & (7 << 13))
+		report |= SND_JACK_BTN_0;
+
+	if (jack->unsol_res  & (1 << 16 | 3 << 8))
+		report |= SND_JACK_BTN_1;
+
+	/* Volume up key */
+	if (jack->unsol_res & (7 << 23))
+		report |= SND_JACK_BTN_2;
+
+	/* Volume down key */
+	if (jack->unsol_res & (7 << 10))
+		report |= SND_JACK_BTN_3;
+
+	jack->jack->button_state = report;
+}
+
+static void alc_fixup_headset_jack(struct hda_codec *codec,
+				    const struct hda_fixup *fix, int action)
+{
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		snd_hda_jack_detect_enable_callback(codec, 0x55,
+						    alc_headset_btn_callback);
+		snd_hda_jack_add_kctl(codec, 0x55, "Headset Jack", false,
+				      SND_JACK_HEADSET, alc_headset_btn_keymap);
+		break;
+	case HDA_FIXUP_ACT_INIT:
+		switch (codec->core.vendor_id) {
+		case 0x10ec0225:
+		case 0x10ec0295:
+		case 0x10ec0299:
+			alc_write_coef_idx(codec, 0x48, 0xd011);
+			alc_update_coef_idx(codec, 0x49, 0x007f, 0x0045);
+			alc_update_coef_idx(codec, 0x44, 0x007f << 8, 0x0045 << 8);
+			break;
+		case 0x10ec0236:
+		case 0x10ec0256:
+			alc_write_coef_idx(codec, 0x48, 0xd011);
+			alc_update_coef_idx(codec, 0x49, 0x007f, 0x0045);
+			break;
+		}
+		break;
+	}
+}
+
 /* for hda_fixup_thinkpad_acpi() */
 #include "thinkpad_helper.c"
 
@@ -5521,6 +5581,7 @@ enum {
 	ALC294_FIXUP_ASUS_MIC,
 	ALC294_FIXUP_ASUS_HEADSET_MIC,
 	ALC294_FIXUP_ASUS_SPK,
+	ALC225_FIXUP_HEADSET_JACK,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -6457,6 +6518,10 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC294_FIXUP_ASUS_HEADSET_MIC
 	},
+	[ALC225_FIXUP_HEADSET_JACK] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_headset_jack,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -6864,6 +6929,7 @@ static const struct hda_model_fixup alc2
 	{.id = ALC255_FIXUP_DUMMY_LINEOUT_VERB, .name = "alc255-dummy-lineout"},
 	{.id = ALC255_FIXUP_DELL_HEADSET_MIC, .name = "alc255-dell-headset"},
 	{.id = ALC295_FIXUP_HP_X360, .name = "alc295-hp-x360"},
+	{.id = ALC225_FIXUP_HEADSET_JACK, .name = "alc-sense-combo"},
 	{}
 };
 #define ALC225_STANDARD_PINS \