-static struct sbmix_elem snd_als4000_ctl_mixer_out_to_in =
- SB_SINGLE("Mixer Out To In", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
-/* FIXME: 3D needs much more sophisticated controls, many more features ! */
-static struct sbmix_elem snd_als4000_ctl_3d_output_switch =
- SB_SINGLE("3D Output Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
-static struct sbmix_elem snd_als4000_ctl_3d_output_ratio =
- SB_SINGLE("3D Output Ratio", SB_ALS4000_3D_SND_FX, 0, 0x07);
-static struct sbmix_elem snd_als4000_ctl_3d_poweroff_switch =
+static struct sbmix_elem snd_als4000_ctl_mixer_loopback =
+ SB_SINGLE("Analog Loopback", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
+/* FIXME: functionality of 3D controls might be swapped, I didn't find
+ * a description of how to identify what is supposed to be what */
+static struct sbmix_elem snd_als4000_3d_control_switch =
+ SB_SINGLE("3D Control - Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
+static struct sbmix_elem snd_als4000_3d_control_ratio =
+ SB_SINGLE("3D Control - Level", SB_ALS4000_3D_SND_FX, 0, 0x07);
+static struct sbmix_elem snd_als4000_3d_control_freq =
+ /* FIXME: maybe there's actually some standard 3D ctrl name for it?? */
+ SB_SINGLE("3D Control - Freq", SB_ALS4000_3D_SND_FX, 4, 0x03);
+static struct sbmix_elem snd_als4000_3d_control_delay =
+ /* FIXME: ALS4000a.pdf mentions BBD (Bucket Brigade Device) time delay,
+ * but what ALSA 3D attribute is that actually? "Center", "Depth",
+ * "Wide" or "Space" or even "Level"? Assuming "Wide" for now... */
+ SB_SINGLE("3D Control - Wide", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
+static struct sbmix_elem snd_als4000_3d_control_poweroff_switch =