tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2002 by Linus Nielsen Feltzing
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
22#include <stdio.h> /* get NULL */
23#include "config.h"
24
25#include "kernel.h"
26#include "rtc.h"
27#ifdef HAVE_RTC_IRQ
28#include "rtc-target.h"
29#endif
30#include "timefuncs.h"
31#include "debug.h"
32
33static struct tm tm;
34
35time_t dostime_mktime(uint16_t dosdate, uint16_t dostime)
36{
37 /* this knows our mktime() only uses these struct tm fields */
38 struct tm tm;
39 tm.tm_sec = ((dostime ) & 0x1f) * 2;
40 tm.tm_min = ((dostime >> 5) & 0x3f);
41 tm.tm_hour = ((dostime >> 11) );
42 tm.tm_mday = ((dosdate ) & 0x1f);
43 tm.tm_mon = ((dosdate >> 5) & 0x0f) - 1;
44 tm.tm_year = ((dosdate >> 9) ) + 80;
45
46 return mktime(&tm);
47}
48
49void dostime_localtime(time_t time, uint16_t* dosdate, uint16_t* dostime)
50{
51 struct tm tm;
52#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
53 gmtime_r(&time, &tm);
54#else
55 localtime_r(&time, &tm);
56#endif
57
58 *dostime = ((tm.tm_sec / 2) << 0)|
59 ((tm.tm_min ) << 5)|
60 ((tm.tm_hour ) << 11);
61 *dosdate = ((tm.tm_mday ) << 0)|
62 ((tm.tm_mon + 1) << 5)|
63 ((tm.tm_year - 80) << 9);
64}
65
66#if !CONFIG_RTC
67static inline bool rtc_dirty(void)
68{
69 return true;
70}
71
72static inline int rtc_read_datetime(struct tm *tm)
73{
74 tm->tm_sec = 0;
75 tm->tm_min = 0;
76 tm->tm_hour = 0;
77 tm->tm_mday = 1;
78 tm->tm_mon = 0;
79 tm->tm_year = 70;
80 tm->tm_wday = 4;
81 tm->tm_yday = 0;
82 return 1;
83}
84#endif /* !CONFIG_RTC */
85
86#if CONFIG_RTC
87bool valid_time(const struct tm *tm)
88{
89 if (!tm || (tm->tm_hour < 0 || tm->tm_hour > 23 ||
90 tm->tm_sec < 0 || tm->tm_sec > 59 ||
91 tm->tm_min < 0 || tm->tm_min > 59 ||
92 tm->tm_year < 100 || tm->tm_year > 199 ||
93 tm->tm_mon < 0 || tm->tm_mon > 11 ||
94 tm->tm_wday < 0 || tm->tm_wday > 6 ||
95 tm->tm_mday < 1 || tm->tm_mday > 31))
96 return false;
97 else
98 return true;
99}
100
101/* Don't read the RTC more than once per second
102 * returns true if the rtc needs to be read
103 * targets may override with their own implementation
104 */
105#ifndef HAVE_RTC_IRQ
106static inline bool rtc_dirty(void)
107{
108 static long timeout = 0;
109
110 /* Don't read the RTC more than once per second */
111 if (TIME_AFTER(current_tick, timeout))
112 {
113 /* Once per second, 1/5th of a second off */
114 timeout = current_tick / HZ * HZ + 6*HZ / 5;
115 return true;
116 }
117
118 return false;
119}
120#endif /* HAVE_RTC_IRQ */
121#endif /* CONFIG_RTC */
122
123struct tm *get_time(void)
124{
125 if (rtc_dirty())
126 {
127 rtc_read_datetime(&tm);
128 tm.tm_isdst = -1; /* Not implemented for now */
129 }
130
131 return &tm;
132}
133
134int set_time(const struct tm *tm)
135{
136#if CONFIG_RTC
137 int rc;
138
139 if (valid_time(tm))
140 {
141 rc = rtc_write_datetime(tm);
142
143 if (rc < 0)
144 return -1;
145 else
146 return 0;
147 }
148 else
149 {
150 return -2;
151 }
152#else /* No RTC */
153 (void)tm;
154 return -1;
155#endif /* RTC */
156}
157
158#if CONFIG_RTC
159void set_day_of_week(struct tm *tm)
160{
161 int y=tm->tm_year+1900;
162 int d=tm->tm_mday;
163 int m=tm->tm_mon;
164 static const char mo[] = { 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 };
165
166 if(m == 0 || m == 1) y--;
167 tm->tm_wday = (d + mo[m] + y + y/4 - y/100 + y/400) % 7;
168}
169
170void set_day_of_year(struct tm *tm)
171{
172 int y=tm->tm_year+1900;
173 int d=tm->tm_mday;
174 int m=tm->tm_mon;
175 d+=m*30;
176 if( ( (m>1) && !(y%4) ) && ( (y%100) || !(y%400) ) )
177 d++;
178 if(m>6)
179 {
180 d+=4;
181 m-=7;
182 }
183 tm->tm_yday = d + ((m+1) /2);
184}
185#endif /* CONFIG_RTC */
186