FS#6419 - driver for H1x0 series RTC Mod with runtime detection

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12520 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 105 insertions, 0 deletions

diff --git a/firmware/target/coldfire/iriver/h300/sw_i2c-h300.c b/firmware/target/coldfire/iriver/h300/sw_i2c-h300.c
new file mode 100644
index 0000000000..f0937463e3
--- /dev/null
+++ b/firmware/target/coldfire/iriver/h300/sw_i2c-h300.c
@@ -0,0 +1,105 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 by Miika Pekkarinen
+ *
+ * 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 "system.h"
+#include "logf.h"
+#include "inttypes.h"
+
+#include "sw_i2c.h"
+
+#include "pcf50606.h"
+
+void sw_i2c_init(void) 
+{
+       /* no extra init required */ 
+}       
+
+int sw_i2c_write(unsigned char chip, unsigned char location, const unsigned char* buf, int count)
+{
+    int i;
+
+    pcf50606_i2c_start();
+    pcf50606_i2c_outb((chip & 0xfe) | SW_I2C_WRITE);
+    if (!pcf50606_i2c_getack())
+    {
+        pcf50606_i2c_stop();
+        return -1;
+    }
+    
+    pcf50606_i2c_outb(location);
+    if (!pcf50606_i2c_getack())
+    {
+        pcf50606_i2c_stop();
+        return -2;
+    }
+    
+    for (i=0; i<count; i++)
+    {
+        pcf50606_i2c_outb(buf[i]);
+        if (!pcf50606_i2c_getack())
+        {
+            pcf50606_i2c_stop();
+            return -3;
+        }
+    }
+
+    pcf50606_i2c_stop();
+    
+    return 0;
+}
+
+int sw_i2c_read(unsigned char chip, unsigned char location, unsigned char* buf, int count)
+{
+    int i;
+  
+    pcf50606_i2c_start();
+    pcf50606_i2c_outb((chip & 0xfe) | SW_I2C_WRITE);
+    if (!pcf50606_i2c_getack())
+    {
+        pcf50606_i2c_stop();
+        return -1;
+    }
+
+    pcf50606_i2c_outb(location);
+    if (!pcf50606_i2c_getack())
+    {
+        pcf50606_i2c_stop();
+        return -2;
+    }
+    
+    pcf50606_i2c_start();
+    pcf50606_i2c_outb((chip & 0xfe) | SW_I2C_READ);
+    if (!pcf50606_i2c_getack())
+    {
+        pcf50606_i2c_stop();
+        return -3;
+    }
+    
+    for (i=0; i<count-1; i++)
+    {
+      buf[i] = pcf50606_i2c_inb(true);
+    }
+
+    /* 1byte min */
+    buf[i] = pcf50606_i2c_inb(false);
+    
+        
+    pcf50606_i2c_stop();
+    
+    return 0;
+}