1 files changed, 64 insertions, 0 deletions

diff --git a/firmware/drivers/rtc/rtc_e8564.c b/firmware/drivers/rtc/rtc_e8564.c
new file mode 100644
index 0000000000..233168c303
--- /dev/null
+++ b/firmware/drivers/rtc/rtc_e8564.c
@@ -0,0 +1,64 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing, Uwe Freese, Laurent Baum
+ *
+ * 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 "config.h"
+#include "i2c.h"
+#include "rtc.h"
+#include "kernel.h"
+#include "system.h"
+#include "i2c-pp5020.h"
+#include <stdbool.h>
+
+void rtc_init(void)
+{
+}
+
+int rtc_read_datetime(unsigned char* buf)
+{
+    unsigned char tmp;
+    int read;
+    
+    /*RTC_E8564's slave address is 0x51*/
+    read = i2c_readbytes(0x51,0x02,7,buf);
+
+    /* swap wday and mday to be compatible with
+     * get_time() from firmware/common/timefuncs.c */
+    tmp=buf[3];
+    buf[3]=buf[4];
+    buf[4]=tmp;
+    
+    return read;
+}
+
+int rtc_write_datetime(unsigned char* buf)
+{
+    int i;
+    unsigned char tmp;
+    
+    /* swap wday and mday to be compatible with
+     * set_time() in firmware/common/timefuncs.c */
+    tmp=buf[3];
+    buf[3]=buf[4];
+    buf[4]=tmp;
+
+    for (i=0;i<7;i++){
+        pp_i2c_send(0x51, 0x02+i,buf[i]);
+    }
+    return 1;
+}
+