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path: root/firmware/drivers/rtc/rtc_d2.c
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Diffstat (limited to 'firmware/drivers/rtc/rtc_d2.c')
-rw-r--r--firmware/drivers/rtc/rtc_d2.c87
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 0000000000..8f60bc20df
--- /dev/null
+++ b/firmware/drivers/rtc/rtc_d2.c
@@ -0,0 +1,87 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2009 by Rob Purchase
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#include "rtc.h"
22#include "system.h"
23#include "pcf50606.h"
24#include "pcf50635.h"
25#include "power-target.h"
26
27void rtc_init(void)
28{
29}
30
31int rtc_read_datetime(struct tm *tm)
32{
33 unsigned int i;
34 int rc, oldlevel;
35 unsigned char buf[7];
36
37 oldlevel = disable_irq_save();
38
39 if (get_pmu_type() == PCF50606)
40 rc = pcf50606_read_multiple(0x0a, buf, sizeof(buf));
41 else
42 rc = pcf50635_read_multiple(0x59, buf, sizeof(buf));
43
44 restore_irq(oldlevel);
45
46 for (i = 0; i < sizeof(buf); i++)
47 buf[i] = BCD2DEC(buf[i]);
48
49 tm->tm_sec = buf[0];
50 tm->tm_min = buf[1];
51 tm->tm_hour = buf[2];
52 tm->tm_wday = buf[3];
53 tm->tm_mday = buf[4];
54 tm->tm_mon = buf[5] - 1;
55 tm->tm_year = buf[6] + 100;
56
57 return rc;
58}
59
60int rtc_write_datetime(const struct tm *tm)
61{
62 unsigned int i;
63 int rc, oldlevel;
64 unsigned char buf[7];
65
66 buf[0] = tm->tm_sec;
67 buf[1] = tm->tm_min;
68 buf[2] = tm->tm_hour;
69 buf[3] = tm->tm_wday;
70 buf[4] = tm->tm_mday;
71 buf[5] = tm->tm_mon + 1;
72 buf[6] = tm->tm_year - 100;
73
74 for (i = 0; i < sizeof(buf); i++)
75 buf[i] = DEC2BCD(buf[i]);
76
77 oldlevel = disable_irq_save();
78
79 if (get_pmu_type() == PCF50606)
80 rc = pcf50606_write_multiple(0x0a, buf, sizeof(buf));
81 else
82 rc = pcf50635_write_multiple(0x59, buf, sizeof(buf));
83
84 restore_irq(oldlevel);
85
86 return rc;
87}