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| author | Geoffrey D. Bennett <g@b4.vu> | 2024-05-11 19:44:17 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-05-12 12:43:11 +0300 |
| commit | 762e6af39883a816290286d5d46a20bbd0f3a135 (patch) | |
| tree | 534b1d56f76dbed95081de454084dcf421d7e68f /sound | |
| parent | d5ca9ad58e15e4169d75c54b2b4dfebaaee0931f (diff) | |
| download | linux-762e6af39883a816290286d5d46a20bbd0f3a135.tar.xz | |
ALSA: scarlett2: Increase mixer range to +12dB
The values loaded into the mixer are 16-bit values, with 8192
representing 0dB, going up to a current maximum of 16345 (+6dB). All
supported interfaces have no problem going up to 32612 (+12dB), so
update SCARLETT2_MIXER_MAX_DB and scarlett2_mixer_values[] to allow
for this.
Tested with:
- Scarlett 2nd Gen 6i6, 18i8, 18i20
- Scarlett 3rd Gen 4i4, 8i6, 18i8, 18i20
- Scarlett 4th Gen Solo, 2i2, 4i4
- Clarett+ 2Pre, 4Pre, 8Pre
- Vocaster One and Two
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/Zj+gYT4F2XeKTD93@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/mixer_scarlett2.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 2dd03b46964e..1150cf104985 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -184,16 +184,16 @@ /* maximum Bluetooth volume value */ #define SCARLETT2_MAX_BLUETOOTH_VOLUME 30 -/* mixer range from -80dB to +6dB in 0.5dB steps */ +/* mixer range from -80dB to +12dB in 0.5dB steps */ #define SCARLETT2_MIXER_MIN_DB -80 #define SCARLETT2_MIXER_BIAS (-SCARLETT2_MIXER_MIN_DB * 2) -#define SCARLETT2_MIXER_MAX_DB 6 +#define SCARLETT2_MIXER_MAX_DB 12 #define SCARLETT2_MIXER_MAX_VALUE \ ((SCARLETT2_MIXER_MAX_DB - SCARLETT2_MIXER_MIN_DB) * 2) #define SCARLETT2_MIXER_VALUE_COUNT (SCARLETT2_MIXER_MAX_VALUE + 1) /* map from (dB + 80) * 2 to mixer value - * for dB in 0 .. 172: int(8192 * pow(10, ((dB - 160) / 2 / 20))) + * for dB in 0 .. 184: int(8192 * pow(10, ((dB - 160) / 2 / 20))) */ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = { 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, @@ -209,7 +209,8 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = { 3078, 3261, 3454, 3659, 3876, 4105, 4349, 4606, 4879, 5168, 5475, 5799, 6143, 6507, 6892, 7301, 7733, 8192, 8677, 9191, 9736, 10313, 10924, 11571, 12257, 12983, 13752, 14567, 15430, - 16345 + 16345, 17313, 18339, 19426, 20577, 21796, 23088, 24456, 25905, + 27440, 29066, 30788, 32612 }; /* Maximum number of analogue outputs */ |