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Date:      Wed, 31 Dec 2008 16:10:02 GMT
From:      WATANABE Kazuhiro <CQG00620@nifty.ne.jp>
To:        freebsd-multimedia@FreeBSD.org
Subject:   Re: kern/72995: [sound] Intel ICH2 (82801BA) - sound nearly	inaudible
Message-ID:  <200812311610.mBVGA26f041886@freefall.freebsd.org>

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The following reply was made to PR kern/72995; it has been noted by GNATS.

From: WATANABE Kazuhiro <CQG00620@nifty.ne.jp>
To: "Russell J. Wood" <rjw@dynode.net>, tom@uffner.com, bug-followup@FreeBSD.org
Cc:  
Subject: Re: kern/72995: [sound] Intel ICH2 (82801BA) - sound nearly	inaudible
Date: Thu, 01 Jan 2009 00:45:52 +0900

 Hello.
 
 At Sat, 27 Dec 2008 18:50:07 GMT,
 Russell J. Wood wrote:
 >  I have just switched to an Intel D845WN motherboard and am experiencing
 >  the same issue.
 >  
 >  Sound is very low even when the volume on my speakers are maxed.
 >  
 >  Regards,
 
 (1) Would you try the patch attached below?  I don't know whether this
     patch is correct or not...
 
 (2) After applied the patch, can you hear any difference between the
     following commands?
 
     # sysctl dev.pcm.0.eapd=0
     # sysctl dev.pcm.0.eapd=1
 
 --- sys/dev/sound/pcm/ac97.c.releng70	2007-10-30 03:47:47.000000000 +0900
 +++ sys/dev/sound/pcm/ac97.c	2008-12-31 17:26:45.000000000 +0900
 @@ -133,7 +133,7 @@
  	{ 0x41445303, 0x00, 0, "AD1819",	0 },
  	{ 0x41445340, 0x00, 0, "AD1881",	0 },
  	{ 0x41445348, 0x00, 0, "AD1881A",	0 },
 -	{ 0x41445360, 0x00, 0, "AD1885",	0 },
 +	{ 0x41445360, 0x00, 0, "AD1885",	ad1885_patch },
  	{ 0x41445361, 0x00, 0, "AD1886", 	ad1886_patch },
  	{ 0x41445362, 0x00, 0, "AD1887", 	0 },
  	{ 0x41445363, 0x00, 0, "AD1886A", 	0 },
 @@ -141,8 +141,8 @@
  	{ 0x41445370, 0x00, 0, "AD1980",	ad198x_patch },
  	{ 0x41445372, 0x00, 0, "AD1981A",	0 },
  	{ 0x41445374, 0x00, 0, "AD1981B",	ad1981b_patch },
 -	{ 0x41445375, 0x00, 0, "AD1985",	ad198x_patch },
 -	{ 0x41445378, 0x00, 0, "AD1986",	ad198x_patch },
 +	{ 0x41445375, 0x00, 0, "AD1985",	ad1985_patch },
 +	{ 0x41445378, 0x00, 0, "AD1986",	ad1986_patch },
  	{ 0x414b4d00, 0x00, 1, "AK4540", 	0 },
  	{ 0x414b4d01, 0x00, 1, "AK4542", 	0 },
  	{ 0x414b4d02, 0x00, 1, "AK4543", 	0 },
 --- sys/dev/sound/pcm/ac97_patch.c.releng70	2007-10-30 03:47:27.000000000 +0900
 +++ sys/dev/sound/pcm/ac97_patch.c	2008-12-31 18:01:41.000000000 +0900
 @@ -30,6 +30,23 @@
  
  SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/ac97_patch.c,v 1.10.2.1 2007/10/29 18:47:27 ariff Exp $");
  
 +void ad1885_patch(struct ac97_info* codec)
 +{
 +#define AC97_AD_JACK_SPDIF 0x72
 +	/*
 +	 * JS0 and EAPD shares the same pin (no.47).
 +	 * To use the EAPD function, we should disable jack sense(?).
 +	 */
 +	switch (ac97_getsubvendor(codec)) {
 +	/* case 0xXXXXXXXX:	*/
 +	/* 	break;		*/
 +	default:
 +		ac97_wrcd(codec, AC97_AD_JACK_SPDIF,
 +		    ac97_rdcd(codec, AC97_AD_JACK_SPDIF) | 0x1110);
 +		break;
 +	}
 +}
 +
  void ad1886_patch(struct ac97_info* codec)
  {
  #define AC97_AD_JACK_SPDIF 0x72
 @@ -44,6 +61,9 @@
  
  void ad198x_patch(struct ac97_info* codec)
  {
 +	/*
 +	 * Swap the aim of the LINE_OUT and SURR_OUT/HP_OUT pins.
 +	 */
  	switch (ac97_getsubvendor(codec)) {
  	case 0x11931043:	/* Not for ASUS A9T (probably else too). */
  		break;
 @@ -69,6 +89,68 @@
  	}
  }
  
 +void ad1985_patch(struct ac97_info* codec)
 +{
 +	/*
 +	 * Swap the aim of the LINE_OUT and SURR_OUT/HP_OUT pins.
 +	 * Disable outputs of the LINE_OUT and CENTER_OUT/LFE_OUT pins.
 +	 * Select the CENTER_OUT/LFE_OUT pins as the MIC inputs.
 +	 * Enable the stereo microphone mode.
 +	 *
 +	 * Set the voltage of the VREFOUT pin.
 +	 */
 +	switch (ac97_getsubvendor(codec)) {
 +	case 0x80f31043:	/* ASUS P4P800 Deluxe (SE) */
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0420);
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x1800);
 +		ac97_wrcd(codec, 0x74, ac97_rdcd(codec, 0x74) | 0x0200);
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0040);
 +
 +		/*
 +		 * 0x0 = 2.25V (default)
 +		 * 0x1 = High-Z
 +		 * 0x2 = 3.7V
 +		 * 0x3 = 0V
 +		 */
 +		ac97_wrcd(codec, 0x76, (ac97_rdcd(codec, 0x76) & ~0xc)
 +		    | 0x0 << 2);
 +		break;
 +	default:
 +		break;
 +	}
 +}
 +
 +void ad1986_patch(struct ac97_info* codec)
 +{
 +	/*
 +	 * Disable outputs of the SURR_OUT and CENTER_OUT/LFE_OUT pins.
 +	 * Select the SURR_OUT pins as the LINE_IN inputs.
 +	 * Select the CENTER_OUT/LFE_OUT pins as the MIC inputs.
 +	 * Enable the stereo microphone mode.
 +	 *
 +	 * Set the voltage of the C/LFE VREF_OUT pin.
 +	 */
 +	switch (ac97_getsubvendor(codec)) {
 +	case 0x818f1043:	/* ASUS P5SD2-X (SE) */
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x1800);
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0004);
 +		ac97_wrcd(codec, 0x74, ac97_rdcd(codec, 0x74) | 0x0200);
 +		ac97_wrcd(codec, 0x76, ac97_rdcd(codec, 0x76) | 0x0040);
 +
 +		/*
 +		 * 0x0 = High-Z (default)
 +		 * 0x1 = 2.25V
 +		 * 0x2 = 0V
 +		 * 0x4 = 3.70V
 +		 */
 +		ac97_wrcd(codec, 0x70, (ac97_rdcd(codec, 0x70) & ~0x1c)
 +		    | 0x1 << 2);
 +		break;
 +	default:
 +		break;
 +	}
 +}
 +
  void cmi9739_patch(struct ac97_info* codec)
  {
  	/*
 --- sys/dev/sound/pcm/ac97_patch.h.releng70	2007-04-19 22:54:22.000000000 +0900
 +++ sys/dev/sound/pcm/ac97_patch.h	2008-12-31 17:44:18.000000000 +0900
 @@ -28,8 +28,11 @@
  
  typedef void (*ac97_patch)(struct ac97_info*);
  
 +void ad1885_patch(struct ac97_info*);
  void ad1886_patch(struct ac97_info*);
  void ad198x_patch(struct ac97_info*);
  void ad1981b_patch(struct ac97_info*);
 +void ad1985_patch(struct ac97_info*);
 +void ad1986_patch(struct ac97_info*);
  void cmi9739_patch(struct ac97_info*);
  void alc655_patch(struct ac97_info*);
 
 ---
 WATANABE Kazuhiro (CQG00620@nifty.ne.jp)



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