From c6ff77f71fe692fa48fe02dbfe74a01f3d5e55e2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 23 Aug 2006 19:53:02 +0200
Subject: [PATCH] [ALSA] Add dB scale information to pcxhr driver
Added the dB scale information to pcxhr driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
---
sound/pci/pcxhr/pcxhr_mixer.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/sound/pci/pcxhr/pcxhr_mixer.c b/sound/pci/pcxhr/pcxhr_mixer.c
index 94e63a1e90d9..b133ad9e095e 100644
--- a/sound/pci/pcxhr/pcxhr_mixer.c
+++ b/sound/pci/pcxhr/pcxhr_mixer.c
@@ -31,6 +31,7 @@
#include "pcxhr_hwdep.h"
#include "pcxhr_core.h"
#include <sound/control.h>
+#include <sound/tlv.h>
#include <sound/asoundef.h>
#include "pcxhr_mixer.h"
@@ -43,6 +44,9 @@
#define PCXHR_ANALOG_PLAYBACK_LEVEL_MAX 128 /* 0.0 dB */
#define PCXHR_ANALOG_PLAYBACK_ZERO_LEVEL 104 /* -24.0 dB ( 0.0 dB - fix level +24.0 dB ) */
+static DECLARE_TLV_DB_SCALE(db_scale_analog_capture, -9600, 50, 0);
+static DECLARE_TLV_DB_SCALE(db_scale_analog_playback, -12800, 100, 0);
+
static int pcxhr_update_analog_audio_level(struct snd_pcxhr *chip, int is_capture, int channel)
{
int err, vol;
@@ -130,10 +134,13 @@ static int pcxhr_analog_vol_put(struct snd_kcontrol *kcontrol,
static struct snd_kcontrol_new pcxhr_control_analog_level = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ),
/* name will be filled later */
.info = pcxhr_analog_vol_info,
.get = pcxhr_analog_vol_get,
.put = pcxhr_analog_vol_put,
+ /* tlv will be filled later */
};
/* shared */
@@ -188,6 +195,7 @@ static struct snd_kcontrol_new pcxhr_control_output_switch = {
#define PCXHR_DIGITAL_LEVEL_MAX 0x1ff /* +18 dB */
#define PCXHR_DIGITAL_ZERO_LEVEL 0x1b7 /* 0 dB */
+static DECLARE_TLV_DB_SCALE(db_scale_digital, -10950, 50, 0);
#define MORE_THAN_ONE_STREAM_LEVEL 0x000001
#define VALID_STREAM_PAN_LEVEL_MASK 0x800000
@@ -343,11 +351,14 @@ static int pcxhr_pcm_vol_put(struct snd_kcontrol *kcontrol,
static struct snd_kcontrol_new snd_pcxhr_pcm_vol =
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ),
/* name will be filled later */
/* count will be filled later */
.info = pcxhr_digital_vol_info, /* shared */
.get = pcxhr_pcm_vol_get,
.put = pcxhr_pcm_vol_put,
+ .tlv = { .p = db_scale_digital },
};
@@ -433,10 +444,13 @@ static int pcxhr_monitor_vol_put(struct snd_kcontrol *kcontrol,
static struct snd_kcontrol_new pcxhr_control_monitor_vol = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+ SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "Monitoring Volume",
.info = pcxhr_digital_vol_info, /* shared */
.get = pcxhr_monitor_vol_get,
.put = pcxhr_monitor_vol_put,
+ .tlv = { .p = db_scale_digital },
};
/*
@@ -928,6 +942,7 @@ int pcxhr_create_mixer(struct pcxhr_mgr *mgr)
temp = pcxhr_control_analog_level;
temp.name = "Master Playback Volume";
temp.private_value = 0; /* playback */
+ temp.tlv.p = db_scale_analog_playback;
if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
return err;
/* output mute controls */
@@ -963,6 +978,7 @@ int pcxhr_create_mixer(struct pcxhr_mgr *mgr)
temp = pcxhr_control_analog_level;
temp.name = "Master Capture Volume";
temp.private_value = 1; /* capture */
+ temp.tlv.p = db_scale_analog_capture;
if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
return err;
--
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