1 files changed, 10 insertions, 3 deletions

diff --git a/firmware/export/wm8731.h b/firmware/export/wm8731.h
index 28d4d3940d..086c847ee1 100644
--- a/firmware/export/wm8731.h
+++ b/firmware/export/wm8731.h
@@ -28,9 +28,16 @@
 #define VOLUME_MIN -730
 #define VOLUME_MAX  60
 
-extern int tenthdb2master(int db);
-
-extern void audiohw_set_master_vol(int vol_l, int vol_r);
+#define AUDIOHW_CAPS        (LIN_GAIN_CAP | MIC_GAIN_CAP)
+
+AUDIOHW_SETTING(VOLUME,     "dB", 0,  1, -74,   6, -25)
+#if defined(HAVE_WM8731) && defined(HAVE_RECORDING)
+/* (x - 23)/1.5 *10 */
+AUDIOHW_SETTING(LEFT_GAIN,  "dB", 1,  1,   0,  31,  23, (val - 23) * 15)
+AUDIOHW_SETTING(RIGHT_GAIN, "dB", 1,  1,   0,  31,  23, (val - 23) * 15)
+/* 0 or 20 dB */
+AUDIOHW_SETTING(MIC_GAIN,   "dB", 1,  1,   0,   1,   0, val * 200)
+#endif /* defined(HAVE_WM8731) && defined(HAVE_RECORDING) */
 
 /* Common register bits */
 #ifdef HAVE_WM8731