[PATCH] [UBUNTU:sound/pci/hda/] Fix noisy HDA output when switch channel output mode (patch_{analog, realtek})

crimsun at fungus.sh.nu crimsun at fungus.sh.nu
Mon Jul 31 05:47:48 UTC 2006


From 6742bbc75d74c67154b3b1ba0bd3f24ae52156c4 Mon Sep 17 00:00:00 2001
From: Daniel T Chen <crimsun at ubuntu.com>
Date: Mon, 31 Jul 2006 01:42:11 -0400
Subject: [PATCH] [UBUNTU:sound/pci/hda/] Fix noisy HDA output when switch channel output mode (patch_{analog,realtek})

UpstreamStatus: Added in upstream alsa-kernel hg changeset:
                8ecbc09a24dd [http://hg-mirror.alsa-project.org/alsa-kernel?cmd=changeset;node=8ecbc09a24dd8fb250c9232d72f8e31be5ed0799;style=raw]

The Analog Devices and Realtek HDA codecs were improperly initialising
the num_dacs variable when switching channel output modes. This commit
from Takashi Iwai fixes that noisy output.

Signed-off-by: Daniel T Chen <crimsun at ubuntu.com>
---
 sound/pci/hda/patch_analog.c  |    8 +++++---
 sound/pci/hda/patch_realtek.c |   26 ++++++++++++++++++++++++--
 2 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index ce160c3..3db7c0a 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -1619,10 +1619,12 @@ static int ad198x_ch_mode_put(snd_kcontr
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct ad198x_spec *spec = codec->spec;
-	if (spec->need_dac_fix)
+	int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
+				      spec->num_channel_mode,
+				      &spec->multiout.max_channels);
+	if (! err && spec->need_dac_fix)
 		spec->multiout.num_dacs = spec->multiout.max_channels / 2;
-	return snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
-				   spec->num_channel_mode, &spec->multiout.max_channels);
+	return err;
 }
 
 /* 6-stack mode */
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index b3f5d4a..e442f15 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -155,6 +155,7 @@ struct alc_spec {
 	/* channel model */
 	const struct hda_channel_mode *channel_mode;
 	int num_channel_mode;
+	int need_dac_fix;
 
 	/* PCM information */
 	struct hda_pcm pcm_rec[3];	/* used in alc_build_pcms() */
@@ -190,6 +191,7 @@ struct alc_config_preset {
 	hda_nid_t dig_in_nid;
 	unsigned int num_channel_mode;
 	const struct hda_channel_mode *channel_mode;
+	int need_dac_fix;
 	unsigned int num_mux_defs;
 	const struct hda_input_mux *input_mux;
 	void (*unsol_event)(struct hda_codec *, unsigned int);
@@ -254,8 +256,12 @@ static int alc_ch_mode_put(snd_kcontrol_
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct alc_spec *spec = codec->spec;
-	return snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
-				   spec->num_channel_mode, &spec->multiout.max_channels);
+	int err = snd_hda_ch_mode_put(codec, ucontrol, spec->channel_mode,
+				      spec->num_channel_mode,
+				      &spec->multiout.max_channels);
+	if (! err && spec->need_dac_fix)
+		spec->multiout.num_dacs = spec->multiout.max_channels / 2;
+	return err;
 }
 
 /*
@@ -515,6 +521,7 @@ static void setup_preset(struct alc_spec
 	
 	spec->channel_mode = preset->channel_mode;
 	spec->num_channel_mode = preset->num_channel_mode;
+	spec->need_dac_fix = preset->need_dac_fix;
 
 	spec->multiout.max_channels = spec->channel_mode[0].channels;
 
@@ -2238,6 +2245,7 @@ static struct alc_config_preset alc880_p
 		.dac_nids = alc880_dac_nids,
 		.num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
 		.channel_mode = alc880_threestack_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_3ST_DIG] = {
@@ -2248,6 +2256,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
 		.channel_mode = alc880_threestack_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_TCL_S700] = {
@@ -2340,6 +2349,7 @@ static struct alc_config_preset alc880_p
 		.dac_nids = alc880_asus_dac_nids,
 		.num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
 		.channel_mode = alc880_asus_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_ASUS_DIG] = {
@@ -2351,6 +2361,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
 		.channel_mode = alc880_asus_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_ASUS_DIG2] = {
@@ -2362,6 +2373,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
 		.channel_mode = alc880_asus_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_ASUS_W1V] = {
@@ -2373,6 +2385,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
 		.channel_mode = alc880_asus_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_UNIWILL_DIG] = {
@@ -2383,6 +2396,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_asus_modes),
 		.channel_mode = alc880_asus_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_CLEVO] = {
@@ -2394,6 +2408,7 @@ static struct alc_config_preset alc880_p
 		.hp_nid = 0x03,
 		.num_channel_mode = ARRAY_SIZE(alc880_threestack_modes),
 		.channel_mode = alc880_threestack_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_capture_source,
 	},
 	[ALC880_LG] = {
@@ -2405,6 +2420,7 @@ static struct alc_config_preset alc880_p
 		.dig_out_nid = ALC880_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc880_lg_ch_modes),
 		.channel_mode = alc880_lg_ch_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc880_lg_capture_source,
 		.unsol_event = alc880_lg_unsol_event,
 		.init_hook = alc880_lg_automute,
@@ -4397,6 +4413,7 @@ static struct alc_config_preset alc882_p
 		.dig_in_nid = ALC882_DIGIN_NID,
 		.num_channel_mode = ARRAY_SIZE(alc882_ch_modes),
 		.channel_mode = alc882_ch_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc882_capture_source,
 	},
 	[ALC882_6ST_DIG] = {
@@ -5035,6 +5052,7 @@ static struct alc_config_preset alc883_p
 		.dig_in_nid = ALC883_DIGIN_NID,
 		.num_channel_mode = ARRAY_SIZE(alc883_3ST_6ch_modes),
 		.channel_mode = alc883_3ST_6ch_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc883_capture_source,
 	},	
 	[ALC883_3ST_6ch] = {
@@ -5046,6 +5064,7 @@ static struct alc_config_preset alc883_p
 		.adc_nids = alc883_adc_nids,
 		.num_channel_mode = ARRAY_SIZE(alc883_3ST_6ch_modes),
 		.channel_mode = alc883_3ST_6ch_modes,
+		.need_dac_fix = 1,
 		.input_mux = &alc883_capture_source,
 	},	
 	[ALC883_6ST_DIG] = {
@@ -6514,6 +6533,7 @@ static struct alc_config_preset alc861_p
 		.dac_nids = alc861_dac_nids,
 		.num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
 		.channel_mode = alc861_threestack_modes,
+		.need_dac_fix = 1,
 		.num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
 		.adc_nids = alc861_adc_nids,
 		.input_mux = &alc861_capture_source,
@@ -6526,6 +6546,7 @@ static struct alc_config_preset alc861_p
 		.dig_out_nid = ALC861_DIGOUT_NID,
 		.num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
 		.channel_mode = alc861_threestack_modes,
+		.need_dac_fix = 1,
 		.num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
 		.adc_nids = alc861_adc_nids,
 		.input_mux = &alc861_capture_source,
@@ -6549,6 +6570,7 @@ static struct alc_config_preset alc861_p
 		.dac_nids = alc660_dac_nids,
 		.num_channel_mode = ARRAY_SIZE(alc861_threestack_modes),
 		.channel_mode = alc861_threestack_modes,
+		.need_dac_fix = 1,
 		.num_adc_nids = ARRAY_SIZE(alc861_adc_nids),
 		.adc_nids = alc861_adc_nids,
 		.input_mux = &alc861_capture_source,
-- 
1.4.1

-- 
Daniel T. Chen            crimsun at ubuntu.com
GPG key:   www.sh.nu/~crimsun/pubkey.gpg.asc
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