From e735ce4693f85dc2ecb5d7290d1298f8b12c1e27 Mon Sep 17 00:00:00 2001
From: Amaury Pouly <amaury.pouly@gmail.com>
Date: Tue, 18 Jun 2013 16:11:51 +0200
Subject: imx233: introduce generic audio routing driver

Change-Id: Icd439e02dd9835778d2733fc01a9306552b36966
---
 firmware/target/arm/imx233/audio-imx233.h | 48 +++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 firmware/target/arm/imx233/audio-imx233.h

(limited to 'firmware/target/arm/imx233/audio-imx233.h')

diff --git a/firmware/target/arm/imx233/audio-imx233.h b/firmware/target/arm/imx233/audio-imx233.h
new file mode 100644
index 0000000000..dd0cdeb63a
--- /dev/null
+++ b/firmware/target/arm/imx233/audio-imx233.h
@@ -0,0 +1,48 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2013 by Amaury Pouly
+ *
+ * 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 __audio_imx233__
+#define __audio_imx233__
+
+#include "audio.h"
+#include "audio-target.h"
+
+/* target can override those functions to provide hooks to the audio code
+ * alternativelly, the default implementation provide support for GPIO
+ * controlled gates using the following defines
+ * NOTE by default gates are enabled by setting GPIO to 1 (except if inverted)
+ *
+ * IMX233_AUDIO_HP_GATE_BANK (gpio bank)
+ * IMX233_AUDIO_HP_GATE_PIN (gpio pin)
+ * IMX233_AUDIO_HP_GATE_INVERTED (define if inverted)
+ *
+ * IMX233_AUDIO_SPKR_GATE_BANK (gpio bank)
+ * IMX233_AUDIO_SPKR_GATE_PIN (gpio pin)
+ * IMX233_AUDIO_SPKR_GATE_INVERTED (define if inverted)
+ */
+// do some initialisation related to next functions
+void imx233_audio_preinit(void);
+void imx233_audio_postinit(void);
+// enable/disable the HP audio gate (typically using a GPIO)
+void imx233_audio_enable_hp(bool en);
+// enable/disable the speaker audio gate (typically using a GPIO)
+void imx233_audio_enable_spkr(bool en);
+
+#endif /* __audio_imx233__ */
\ No newline at end of file
-- 
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