[ALSA] ymfpci: add per-voice volume controls
YMFPCI driver
Implements mixer controls for the volume of each playback substream of
the main PCM device.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/include/sound/ymfpci.h b/include/sound/ymfpci.h
index 4b57068..9a3c1e6 100644
--- a/include/sound/ymfpci.h
+++ b/include/sound/ymfpci.h
@@ -295,6 +295,7 @@
unsigned int running: 1;
unsigned int output_front: 1;
unsigned int output_rear: 1;
+ unsigned int update_pcm_vol;
u32 period_size; /* cached from runtime->period_size */
u32 buffer_size; /* cached from runtime->buffer_size */
u32 period_pos;
@@ -367,6 +368,11 @@
int mode_dup4ch;
int rear_opened;
int spdif_opened;
+ struct {
+ u16 left;
+ u16 right;
+ snd_kcontrol_t *ctl;
+ } pcm_mixer[32];
spinlock_t reg_lock;
spinlock_t voice_lock;