From 4f3bcbbb11905c95337fcbe670a1b7da477fbf13 Mon Sep 17 00:00:00 2001
From: Mark Arigo <markarigo@gmail.com>
Date: Thu, 6 Sep 2007 03:01:41 +0000
Subject: Move files that will be common to the Sansa e200 and c200

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14624 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/sandisk/adc-c200_e200.c | 56 +++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 firmware/target/arm/sandisk/adc-c200_e200.c

(limited to 'firmware/target/arm/sandisk/adc-c200_e200.c')

diff --git a/firmware/target/arm/sandisk/adc-c200_e200.c b/firmware/target/arm/sandisk/adc-c200_e200.c
new file mode 100644
index 0000000000..31321ece37
--- /dev/null
+++ b/firmware/target/arm/sandisk/adc-c200_e200.c
@@ -0,0 +1,56 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Barry Wardell
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "adc.h"
+#include "kernel.h"
+#include "i2c-pp.h"
+#include "as3514.h"
+
+static struct mutex adc_mutex NOCACHEBSS_ATTR;
+
+/* Read 10-bit channel data */
+unsigned short adc_read(int channel)
+{
+    unsigned short data = 0;
+
+    if ((unsigned)channel < NUM_ADC_CHANNELS)
+    {
+        spinlock_lock(&adc_mutex);
+
+        /* Select channel */
+        if (pp_i2c_send( AS3514_I2C_ADDR, ADC_0, (channel << 4)) >= 0)
+        {
+            unsigned char buf[2];
+
+            /* Read data */
+            if (i2c_readbytes( AS3514_I2C_ADDR, ADC_0, 2, buf) >= 0)
+            {
+                data = (((buf[0] & 0x3) << 8) | buf[1]);
+            }
+        }
+
+        spinlock_unlock(&adc_mutex);
+    }
+    
+    return data;
+}
+
+void adc_init(void)
+{
+    spinlock_init(&adc_mutex);
+}
-- 
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