sound: oxygen: add stereo upmixing to center/LFE channels
Add the possibility to route a mix of the two channels of stereo data to
the center and LFE outputs. This is implemented only for models where
the DACs support this, i.e., for the Xonar D1 and DX.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index ef2345d..1e98333 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -435,6 +435,7 @@
if (err < 0)
return err;
+ mutex_lock(&chip->mutex);
spin_lock_irq(&chip->reg_lock);
oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
OXYGEN_SPDIF_OUT_ENABLE);
@@ -446,6 +447,7 @@
OXYGEN_SPDIF_OUT_RATE_MASK);
oxygen_update_spdif_source(chip);
spin_unlock_irq(&chip->reg_lock);
+ mutex_unlock(&chip->mutex);
return 0;
}
@@ -459,6 +461,7 @@
if (err < 0)
return err;
+ mutex_lock(&chip->mutex);
spin_lock_irq(&chip->reg_lock);
oxygen_write8_masked(chip, OXYGEN_PLAY_CHANNELS,
oxygen_play_channels(hw_params),
@@ -475,12 +478,11 @@
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_MCLK_MASK |
OXYGEN_I2S_BITS_MASK);
- oxygen_update_dac_routing(chip);
oxygen_update_spdif_source(chip);
spin_unlock_irq(&chip->reg_lock);
- mutex_lock(&chip->mutex);
chip->model.set_dac_params(chip, hw_params);
+ oxygen_update_dac_routing(chip);
mutex_unlock(&chip->mutex);
return 0;
}