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Commit bd25b7ca authored by Ville Syrjala's avatar Ville Syrjala Committed by Jaroslav Kysela
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[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: default avatarVille Syrjala <syrjala@sci.fi>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 93ed1503

sound/pci/ac97/ac97_patch.c

+12 −0
Original line number Diff line number Diff line
@@ -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;

}