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[ALSA] pcxhr - Fix dB level information 

Some dB level information is wrong in pcxhr driver according to the
datasheet.  Fixed now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-10-10 10:06:46 +02:00 committed by Jaroslav Kysela
parent 1194b5b70a
commit e6382cf8b0
1 changed files with 3 additions and 3 deletions
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6
sound/pci/pcxhr/pcxhr_mixer.c
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@ -44,8 +44,8 @@
#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 const DECLARE_TLV_DB_SCALE(db_scale_analog_capture, -9600, 50, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_analog_playback, -12800, 100, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_analog_capture, -9600, 50, 3150);
static const DECLARE_TLV_DB_SCALE(db_scale_analog_playback, -10400, 100, 2400);
static int pcxhr_update_analog_audio_level(struct snd_pcxhr *chip, int is_capture, int channel)
{
@ -188,7 +188,7 @@ 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 const DECLARE_TLV_DB_SCALE(db_scale_digital, -10950, 50, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_digital, -10975, 25, 1800);
#define MORE_THAN_ONE_STREAM_LEVEL 0x000001
#define VALID_STREAM_PAN_LEVEL_MASK 0x800000