linux-kernel - [PATCH 2/3] Fix headset auto detect fail in cx8070 and SN6140

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Date: Wed, 27 Dec 2023 15:10:07 +0800
From: bo liu <bo.liu@...arytech.com>
To: perex@...ex.cz,
	tiwai@...e.com
Cc: linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bo liu <bo.liu@...arytech.com>
Subject: [PATCH 2/3] Fix headset auto detect fail in cx8070 and SN6140

CX8070 and SN6140 will get wrong headset type when use OMTP headset,
then the headset mic will not work.

Signed-off-by: bo liu <bo.liu@...arytech.com>
---
 sound/pci/hda/patch_conexant.c | 35 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 2d58595bfbdd..9ebc0709a202 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -184,11 +184,10 @@ static int cx_auto_init(struct hda_codec *codec)
 		snd_hda_codec_write(codec, 0x1c, 0, 0x4f0, 0x0eb);
 		/* fix reboot headset recognize fail issue */
 		mic_persent = snd_hda_codec_read(codec, 0x19, 0, 0xf09, 0x0);
-		if (mic_persent&0x80000000) {
+		if (mic_persent&0x80000000) 
 			snd_hda_codec_write(codec, 0x19, 0, 0x707, 0x24);
-		} else {
+		else
 			snd_hda_codec_write(codec, 0x19, 0, 0x707, 0x20);
-		}
 		break;
 	}
 
@@ -209,46 +208,46 @@ static void cx_auto_free(struct hda_codec *codec)
 	cx_auto_shutdown(codec);
 	snd_hda_gen_free(codec);
 }
- 
+
 static int headset_present_flag;
 static void cx_jack_unsol_event(struct hda_codec *codec, unsigned int res)
 {
-	unsigned int val,phone_present,mic_persent,phone_tag,mic_tag;
+	unsigned int val, phone_present, mic_persent,phone_tag, mic_tag;
 	unsigned int count=0;
-	
+
 	switch (codec->core.vendor_id) {
 	case 0x14f11f86:
 	case 0x14f11f87:
 		/* check hp&mic tag to process headset pulgin&plugout */
 		phone_tag = snd_hda_codec_read(codec, 0x16, 0, 0xf08, 0x0);
 		mic_tag = snd_hda_codec_read(codec, 0x19, 0, 0xf08, 0x0);
-		if((phone_tag&(res>>26)) || (mic_tag&(res>>26))) {
-			//msleep(600);
+		if ((phone_tag&(res>>26)) || (mic_tag&(res>>26))) {
 			phone_present = snd_hda_codec_read(codec, 0x16, 0, 0xf09, 0x0);
-			if(!(phone_present&0x80000000)) {/* headphone plugout */
+			if (!(phone_present&0x80000000)) {/* headphone plugout */
 				headset_present_flag = 0;
 				snd_hda_codec_write(codec, 0x19, 0, 0x707, 0x20);
 				break;
 			}
 			if (headset_present_flag == 0) {
 				headset_present_flag = 1;
-			} else if(headset_present_flag == 1) {
+			} else if (headset_present_flag == 1) {
 				mic_persent = snd_hda_codec_read(codec, 0x19, 0, 0xf09, 0x0);
-				if ((phone_present&0x80000000)&&(mic_persent&0x80000000)) {/* headset is present */
+				/* headset is present */
+				if ((phone_present&0x80000000) && (mic_persent&0x80000000)) {
 					/* wait headset detect done */
 					do {
-						val = snd_hda_codec_read(codec, 0x1c, 0, 0xca0, 0x0);
-						if(val&0x080) {
+						val = snd_hda_codec_read(codec, 0x1c,
+									0, 0xca0, 0x0);
+						if (val&0x080)
 							break;
-						}
-						msleep(10);
+						msleep(20);
 						count += 1;
-					} while(count > 5);
+					} while (count > 3);
 					val = snd_hda_codec_read(codec, 0x1c, 0, 0xcb0, 0x0);
-					if(val&0x800) {
+					if (val&0x800) {
 						codec_dbg(codec, "headset plugin, type is CTIA\n");
 						snd_hda_codec_write(codec, 0x19, 0, 0x707, 0x24);
-					} else if(val&0x400) {
+					} else if (val&0x400) {
 						codec_dbg(codec, "headset plugin, type is OMTP\n");
 						snd_hda_codec_write(codec, 0x19, 0, 0x707, 0x24);
 					} else {
-- 
2.34.1