Commit ba22429d authored by Charl Coetzee's avatar Charl Coetzee Committed by Jaroslav Kysela
Browse files

[ALSA] ac97 - Added a codec patch for LM4550 



Modules: AC97 Codec

Added a codec patch for LM4550.  It sets up a static volume resolution
table.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 50dabc2d

sound/pci/ac97/ac97_codec.c

+1 −1
Original line number Diff line number Diff line
@@ -150,7 +150,7 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = { 
{ 0x49544561, 0xffffffff, "IT2646E",		patch_it2646,	NULL },

{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48",	NULL,		NULL }, // only guess --jk

{ 0x4e534331, 0xffffffff, "LM4549",		NULL,		NULL },

{ 0x4e534350, 0xffffffff, "LM4550",		NULL,		NULL },

{ 0x4e534350, 0xffffffff, "LM4550",		patch_lm4550,  	NULL }, // volume wrap fix 

{ 0x50534304, 0xffffffff, "UCB1400",		NULL,		NULL },

{ 0x53494c20, 0xffffffe0, "Si3036,8",		mpatch_si3036,	mpatch_si3036, AC97_MODEM_PATCH },

{ 0x54524102, 0xffffffff, "TR28022",		NULL,		NULL },

sound/pci/ac97/ac97_patch.c

+31 −0
Original line number Diff line number Diff line
@@ -2825,3 +2825,34 @@ int mpatch_si3036(struct snd_ac97 * ac97) 
	snd_ac97_write_cache(ac97, 0x68, 0);

	return 0;

}



/*

 * LM 4550 Codec

 *

 * We use a static resolution table since LM4550 codec cannot be

 * properly autoprobed to determine the resolution via

 * check_volume_resolution().

 */



static struct snd_ac97_res_table lm4550_restbl[] = {

	{ AC97_MASTER, 0x1f1f },

	{ AC97_HEADPHONE, 0x1f1f },

	{ AC97_MASTER_MONO, 0x001f },

	{ AC97_PC_BEEP, 0x001f },	/* LSB is ignored */

	{ AC97_PHONE, 0x001f },

	{ AC97_PHONE, 0x001f },

	{ AC97_MIC, 0x001f },

	{ AC97_LINE, 0x1f1f },

	{ AC97_CD, 0x1f1f },

	{ AC97_VIDEO, 0x1f1f },

	{ AC97_AUX, 0x1f1f },

	{ AC97_PCM, 0x1f1f },

	{ AC97_REC_GAIN, 0x0f0f },

	{ } /* terminator */

};



int patch_lm4550(struct snd_ac97 *ac97)

{

	ac97->res_table = lm4550_restbl;

	return 0;

}

sound/pci/ac97/ac97_patch.h

+1 −0
Original line number Diff line number Diff line
@@ -59,3 +59,4 @@ int patch_vt1616(struct snd_ac97 * ac97); 
int patch_vt1617a(struct snd_ac97 * ac97);

int patch_it2646(struct snd_ac97 * ac97);

int mpatch_si3036(struct snd_ac97 * ac97);

int patch_lm4550(struct snd_ac97 * ac97);