D2: The RTC chip needs to be runtime detected.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23112 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 87 insertions, 0 deletions

diff --git a/firmware/drivers/rtc/rtc_d2.c b/firmware/drivers/rtc/rtc_d2.c
new file mode 100644
index 0000000..8f60bc2
--- /dev/null
+++ b/firmware/drivers/rtc/rtc_d2.c
@@ -0,0 +1,87 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 by Rob Purchase
+ *
+ * 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 "rtc.h"
+#include "system.h"
+#include "pcf50606.h"
+#include "pcf50635.h"
+#include "power-target.h"
+
+void rtc_init(void)
+{
+}
+
+int rtc_read_datetime(struct tm *tm)
+{
+    unsigned int i;
+    int rc, oldlevel;
+    unsigned char buf[7];
+
+    oldlevel = disable_irq_save();
+
+    if (get_pmu_type() == PCF50606)
+        rc = pcf50606_read_multiple(0x0a, buf, sizeof(buf));
+    else
+        rc = pcf50635_read_multiple(0x59, buf, sizeof(buf));
+
+    restore_irq(oldlevel);
+
+    for (i = 0; i < sizeof(buf); i++)
+        buf[i] = BCD2DEC(buf[i]);
+
+    tm->tm_sec = buf[0];
+    tm->tm_min = buf[1];
+    tm->tm_hour = buf[2];
+    tm->tm_wday = buf[3];
+    tm->tm_mday = buf[4];
+    tm->tm_mon = buf[5] - 1;
+    tm->tm_year = buf[6] + 100;
+
+    return rc;
+}
+
+int rtc_write_datetime(const struct tm *tm)
+{
+    unsigned int i;
+    int rc, oldlevel;
+    unsigned char buf[7];
+
+    buf[0] = tm->tm_sec;
+    buf[1] = tm->tm_min;
+    buf[2] = tm->tm_hour;
+    buf[3] = tm->tm_wday;
+    buf[4] = tm->tm_mday;
+    buf[5] = tm->tm_mon + 1;
+    buf[6] = tm->tm_year - 100;
+
+    for (i = 0; i < sizeof(buf); i++)
+         buf[i] = DEC2BCD(buf[i]);
+
+    oldlevel = disable_irq_save();
+
+    if (get_pmu_type() == PCF50606)
+        rc = pcf50606_write_multiple(0x0a, buf, sizeof(buf));
+    else
+        rc = pcf50635_write_multiple(0x59, buf, sizeof(buf));
+
+    restore_irq(oldlevel);
+
+    return rc;
+}