From bd25b7cae1e763b292f359170e16bccd01c7ee5c Mon Sep 17 00:00:00 2001
From: Ville Syrjala <syrjala@sci.fi>
Date: Mon, 4 Sep 2006 12:28:24 +0200
Subject: [PATCH] [ALSA] ac97: Fix AD1819 volume range
AD1819 volume registers can hold extra bits which do not affect the
actual volume. Add a res_table to the codec patch to fix the problem.
PCM, line and mic volume were tested.
Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---
sound/pci/ac97/ac97_patch.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index bdd7f89234f6f..9be4ceb6838e5 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -1395,6 +1395,17 @@ static void ad1888_resume(struct snd_ac97 *ac97)
#endif
+static const struct snd_ac97_res_table ad1819_restbl[] = {
+ { AC97_PHONE, 0x9f1f },
+ { AC97_MIC, 0x9f1f },
+ { AC97_LINE, 0x9f1f },
+ { AC97_CD, 0x9f1f },
+ { AC97_VIDEO, 0x9f1f },
+ { AC97_AUX, 0x9f1f },
+ { AC97_PCM, 0x9f1f },
+ { } /* terminator */
+};
+
int patch_ad1819(struct snd_ac97 * ac97)
{
unsigned short scfg;
@@ -1402,6 +1413,7 @@ int patch_ad1819(struct snd_ac97 * ac97)
// patch for Analog Devices
scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x7000); /* select all codecs */
+ ac97->res_table = ad1819_restbl;
return 0;
}
--
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