diff options
| -rw-r--r-- | sound/pci/emu10k1/emumixer.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c index f34bbfb705f5..b0fb6c917c38 100644 --- a/sound/pci/emu10k1/emumixer.c +++ b/sound/pci/emu10k1/emumixer.c @@ -1639,6 +1639,45 @@ static struct snd_kcontrol_new snd_audigy_shared_spdif __devinitdata = .put = snd_emu10k1_shared_spdif_put }; +/* workaround for too low volume on Audigy due to 16bit/24bit conversion */ + +#define snd_audigy_capture_boost_info snd_ctl_boolean_mono_info + +static int snd_audigy_capture_boost_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); + unsigned int val; + + /* FIXME: better to use a cached version */ + val = snd_ac97_read(emu->ac97, AC97_REC_GAIN); + ucontrol->value.integer.value[0] = !!val; + return 0; +} + +static int snd_audigy_capture_boost_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol); + unsigned int val; + + if (ucontrol->value.integer.value[0]) + val = 0x0f0f; + else + val = 0; + return snd_ac97_update(emu->ac97, AC97_REC_GAIN, val); +} + +static struct snd_kcontrol_new snd_audigy_capture_boost __devinitdata = +{ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Analog Capture Boost", + .info = snd_audigy_capture_boost_info, + .get = snd_audigy_capture_boost_get, + .put = snd_audigy_capture_boost_put +}; + + /* */ static void snd_emu10k1_mixer_free_ac97(struct snd_ac97 *ac97) @@ -2087,5 +2126,12 @@ int __devinit snd_emu10k1_mixer(struct snd_emu10k1 *emu, } } + if (emu->card_capabilities->ac97_chip && emu->audigy) { + err = snd_ctl_add(card, snd_ctl_new1(&snd_audigy_capture_boost, + emu)); + if (err < 0) + return err; + } + return 0; } |