[ALSA] snd-emu10k1: Implement dB gain infomation.
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
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@ -1524,6 +1524,10 @@ struct snd_emu10k1_fx8010_control_gpr {
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unsigned int value[32]; /* initial values */
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unsigned int min; /* minimum range */
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unsigned int max; /* maximum range */
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union {
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snd_kcontrol_tlv_rw_t *c;
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unsigned int *p;
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} tlv;
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unsigned int translation; /* translation type (EMU10K1_GPR_TRANSLATION*) */
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};
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@ -35,6 +35,7 @@
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#include <linux/mutex.h>
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#include <sound/core.h>
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#include <sound/tlv.h>
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#include <sound/emu10k1.h>
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#if 0 /* for testing purposes - digital out -> capture */
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@ -290,6 +291,9 @@ static const u32 db_table[101] = {
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0x7fffffff,
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};
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/* EMU10k1/EMU10k2 DSP control db gain */
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static DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1);
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static const u32 onoff_table[2] = {
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0x00000000, 0x00000001
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};
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@ -755,6 +759,11 @@ static int snd_emu10k1_add_controls(struct snd_emu10k1 *emu,
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knew.device = gctl->id.device;
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knew.subdevice = gctl->id.subdevice;
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knew.info = snd_emu10k1_gpr_ctl_info;
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if (gctl->tlv.p) {
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knew.tlv.p = gctl->tlv.p;
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knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
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SNDRV_CTL_ELEM_ACCESS_TLV_READ;
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}
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knew.get = snd_emu10k1_gpr_ctl_get;
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knew.put = snd_emu10k1_gpr_ctl_put;
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memset(nctl, 0, sizeof(*nctl));
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@ -1013,6 +1022,7 @@ snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
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ctl->gpr[0] = gpr + 0; ctl->value[0] = defval;
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ctl->min = 0;
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ctl->max = 100;
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ctl->tlv.p = snd_emu10k1_db_scale1;
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ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100;
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}
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@ -1027,6 +1037,7 @@ snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl,
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ctl->gpr[1] = gpr + 1; ctl->value[1] = defval;
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ctl->min = 0;
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ctl->max = 100;
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ctl->tlv.p = snd_emu10k1_db_scale1;
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ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100;
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}
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@ -100,6 +100,7 @@
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#include <sound/pcm.h>
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#include <sound/ac97_codec.h>
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#include <sound/info.h>
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#include <sound/tlv.h>
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#include <sound/emu10k1.h>
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#include "p16v.h"
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@ -784,12 +785,16 @@ static int snd_p16v_capture_channel_put(struct snd_kcontrol *kcontrol,
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}
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return change;
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}
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static DECLARE_TLV_DB_SCALE(snd_p16v_db_scale1, -5175, 25, 1);
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#define P16V_VOL(xname,xreg,xhl) { \
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.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
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.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | \
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SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
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.info = snd_p16v_volume_info, \
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.get = snd_p16v_volume_get, \
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.put = snd_p16v_volume_put, \
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.tlv.p = snd_p16v_db_scale1, \
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.private_value = ((xreg) | ((xhl) << 8)) \
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}
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