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[ALSA] Add dB scale information to trident driver
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Added the dB scale information to trident driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
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Takashi Iwai authored and Jaroslav Kysela committed Sep 23, 2006
1 parent 666c70f commit a0aef8e
Showing 1 changed file with 10 additions and 0 deletions.
10 changes: 10 additions & 0 deletions sound/pci/trident/trident_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include <sound/trident.h>
#include <sound/asoundef.h>

Expand Down Expand Up @@ -2627,6 +2628,8 @@ static int snd_trident_vol_control_get(struct snd_kcontrol *kcontrol,
return 0;
}

static DECLARE_TLV_DB_SCALE(db_scale_gvol, -6375, 25, 0);

static int snd_trident_vol_control_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
Expand All @@ -2653,6 +2656,7 @@ static struct snd_kcontrol_new snd_trident_vol_music_control __devinitdata =
.get = snd_trident_vol_control_get,
.put = snd_trident_vol_control_put,
.private_value = 16,
.tlv = { .p = db_scale_gvol },
};

static struct snd_kcontrol_new snd_trident_vol_wave_control __devinitdata =
Expand All @@ -2663,6 +2667,7 @@ static struct snd_kcontrol_new snd_trident_vol_wave_control __devinitdata =
.get = snd_trident_vol_control_get,
.put = snd_trident_vol_control_put,
.private_value = 0,
.tlv = { .p = db_scale_gvol },
};

/*---------------------------------------------------------------------------
Expand Down Expand Up @@ -2730,6 +2735,7 @@ static struct snd_kcontrol_new snd_trident_pcm_vol_control __devinitdata =
.info = snd_trident_pcm_vol_control_info,
.get = snd_trident_pcm_vol_control_get,
.put = snd_trident_pcm_vol_control_put,
/* FIXME: no tlv yet */
};

/*---------------------------------------------------------------------------
Expand Down Expand Up @@ -2839,6 +2845,8 @@ static int snd_trident_pcm_rvol_control_put(struct snd_kcontrol *kcontrol,
return change;
}

static DECLARE_TLV_DB_SCALE(db_scale_crvol, -3175, 25, 1);

static struct snd_kcontrol_new snd_trident_pcm_rvol_control __devinitdata =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
Expand All @@ -2848,6 +2856,7 @@ static struct snd_kcontrol_new snd_trident_pcm_rvol_control __devinitdata =
.info = snd_trident_pcm_rvol_control_info,
.get = snd_trident_pcm_rvol_control_get,
.put = snd_trident_pcm_rvol_control_put,
.tlv = { .p = db_scale_crvol },
};

/*---------------------------------------------------------------------------
Expand Down Expand Up @@ -2903,6 +2912,7 @@ static struct snd_kcontrol_new snd_trident_pcm_cvol_control __devinitdata =
.info = snd_trident_pcm_cvol_control_info,
.get = snd_trident_pcm_cvol_control_get,
.put = snd_trident_pcm_cvol_control_put,
.tlv = { .p = db_scale_crvol },
};

static void snd_trident_notify_pcm_change1(struct snd_card *card,
Expand Down

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