From 65f61d6cce4a5d3b52860d38a922b01fcddc70cd Mon Sep 17 00:00:00 2001
From: Nils Wallménius <nils@rockbox.org>
Date: Tue, 9 Dec 2008 20:48:04 +0000
Subject: FS#9609 FM radio support for the Gigabeat S, seeking/scanning is not
 yet implemented but manual tuning works nicely. Thanks to Rafaël Carré,
 Bertrik Sikken and Robert Menes for suggestions and debugging help.
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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19372 a1c6a512-1295-4272-9138-f99709370657
---
 .../arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c  | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c

(limited to 'firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c')

diff --git a/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c
new file mode 100644
index 0000000000..5e5c4853dd
--- /dev/null
+++ b/firmware/target/arm/imx31/gigabeat-s/fmradio-i2c-gigabeat-s.c
@@ -0,0 +1,49 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ * Physical interface of the SI4700 in the Gigabeat S
+ *
+ * Copyright (C) 2008 by Nils Wallménius
+ *
+ * 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.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include "system.h"
+#include "i2c-imx31.h"
+#include "fmradio_i2c.h"
+
+struct i2c_node si4700_i2c_node =
+{
+    .num  = I2C2_NUM,
+    .ifdr = I2C_IFDR_DIV192, /* 66MHz/.4MHz = 165, closest = 192 = 343750Hz */
+                             /* Just hard-code for now - scaling may require 
+                              * updating */
+    .addr = (0x20),
+};
+
+int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count)
+{
+    (void)address;
+    i2c_write(&si4700_i2c_node, buf, count);
+    return 0;
+}
+
+int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count)
+{
+    (void)address;
+    i2c_read(&si4700_i2c_node, -1, buf, count);
+    return 0;
+}
+
-- 
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