1 files changed, 40 insertions, 0 deletions

diff --git a/lib/rbcodec/dsp/pga.h b/lib/rbcodec/dsp/pga.h
new file mode 100644
index 0000000000..f0c4c4717f
--- /dev/null
+++ b/lib/rbcodec/dsp/pga.h
@@ -0,0 +1,40 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2012 Michael Sevakis
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef PGA_H
+#define PGA_H
+
+#define PGA_UNITY ((int32_t)0x01000000) /* s7.24 */
+
+/* Various gains supported by pre-gain amp */
+enum pga_gain_ids
+{
+    PGA_EQ_PRECUT = 0,
+    PGA_REPLAYGAIN,
+#ifdef HAVE_SW_VOLUME_CONTROL
+    PGA_VOLUME,
+#endif
+    PGA_NUM_GAINS,
+};
+
+void pga_set_gain(enum pga_gain_ids id, int32_t value);
+void pga_enable_gain(enum pga_gain_ids id, bool enable);
+
+#endif /* PGA_H */