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[ALSA] Add dB scale information to cs4281 driver
Added the dB scale information to cs4281 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
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@ -33,6 +33,7 @@
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#include <sound/pcm.h>
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#include <sound/rawmidi.h>
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#include <sound/ac97_codec.h>
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#include <sound/tlv.h>
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#include <sound/opl3.h>
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#include <sound/initval.h>
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@ -1054,6 +1055,8 @@ static int snd_cs4281_put_volume(struct snd_kcontrol *kcontrol,
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return change;
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}
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static DECLARE_TLV_DB_SCALE(db_scale_dsp, -4650, 150, 0);
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static struct snd_kcontrol_new snd_cs4281_fm_vol =
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{
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
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@ -1062,6 +1065,7 @@ static struct snd_kcontrol_new snd_cs4281_fm_vol =
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.get = snd_cs4281_get_volume,
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.put = snd_cs4281_put_volume,
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.private_value = ((BA0_FMLVC << 16) | BA0_FMRVC),
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.tlv = { .p = db_scale_dsp },
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};
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static struct snd_kcontrol_new snd_cs4281_pcm_vol =
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@ -1072,6 +1076,7 @@ static struct snd_kcontrol_new snd_cs4281_pcm_vol =
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.get = snd_cs4281_get_volume,
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.put = snd_cs4281_put_volume,
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.private_value = ((BA0_PPLVC << 16) | BA0_PPRVC),
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.tlv = { .p = db_scale_dsp },
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};
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static void snd_cs4281_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
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