teralytic / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed by teralytic

targets/hal/TARGET_Atmel/TARGET_SAM_CortexM4/rtc_api.c@148:4802eb17e82b, 2016-10-17 (annotated)

Committer:
rodriguise
Date:
Mon Oct 17 18:47:01 2016 +0000
Revision:
148:4802eb17e82b
Parent:
107:414e9c822e99 
backup

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 107:414e9c822e99 1 /* mbed Microcontroller Library
mbed_official 107:414e9c822e99 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 107:414e9c822e99 3 *
mbed_official 107:414e9c822e99 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 107:414e9c822e99 5 * you may not use this file except in compliance with the License.
mbed_official 107:414e9c822e99 6 * You may obtain a copy of the License at
mbed_official 107:414e9c822e99 7 *
mbed_official 107:414e9c822e99 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 107:414e9c822e99 9 *
mbed_official 107:414e9c822e99 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 107:414e9c822e99 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 107:414e9c822e99 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 107:414e9c822e99 13 * See the License for the specific language governing permissions and
mbed_official 107:414e9c822e99 14 * limitations under the License.
mbed_official 107:414e9c822e99 15 */
mbed_official 107:414e9c822e99 16 #include "mbed_assert.h"
mbed_official 107:414e9c822e99 17 #include "rtc_api.h"
mbed_official 107:414e9c822e99 18 #include "cmsis.h"
mbed_official 107:414e9c822e99 19 #include "sysclk.h"
mbed_official 107:414e9c822e99 20 #include "rtc.h"
mbed_official 107:414e9c822e99 21
mbed_official 107:414e9c822e99 22 static int rtc_inited = 0;
mbed_official 107:414e9c822e99 23
mbed_official 107:414e9c822e99 24 extern uint8_t g_sys_init;
mbed_official 107:414e9c822e99 25
mbed_official 107:414e9c822e99 26 void rtc_init(void)
mbed_official 107:414e9c822e99 27 {
mbed_official 107:414e9c822e99 28 if (g_sys_init == 0) {
mbed_official 107:414e9c822e99 29 sysclk_init();
mbed_official 107:414e9c822e99 30 system_board_init();
mbed_official 107:414e9c822e99 31 g_sys_init = 1;
mbed_official 107:414e9c822e99 32 }
mbed_official 107:414e9c822e99 33 /* Default RTC configuration, 24-hour mode */
mbed_official 107:414e9c822e99 34 rtc_set_hour_mode(RTC, 0);
mbed_official 107:414e9c822e99 35 rtc_inited = 1;
mbed_official 107:414e9c822e99 36 }
mbed_official 107:414e9c822e99 37
mbed_official 107:414e9c822e99 38 void rtc_free(void)
mbed_official 107:414e9c822e99 39 {
mbed_official 107:414e9c822e99 40 /*This is a free running peripheral and cannot be disabled*/
mbed_official 107:414e9c822e99 41 rtc_inited = 0;
mbed_official 107:414e9c822e99 42 }
mbed_official 107:414e9c822e99 43
mbed_official 107:414e9c822e99 44
mbed_official 107:414e9c822e99 45 int rtc_isenabled(void)
mbed_official 107:414e9c822e99 46 {
mbed_official 107:414e9c822e99 47 return rtc_inited;
mbed_official 107:414e9c822e99 48 }
mbed_official 107:414e9c822e99 49
mbed_official 107:414e9c822e99 50
mbed_official 107:414e9c822e99 51 time_t rtc_read(void)
mbed_official 107:414e9c822e99 52 {
mbed_official 107:414e9c822e99 53 if (!rtc_inited) {
mbed_official 107:414e9c822e99 54 /* Return invalid time for now! */
mbed_official 107:414e9c822e99 55 return 0;
mbed_official 107:414e9c822e99 56 }
mbed_official 107:414e9c822e99 57 struct tm timeinfo;
mbed_official 107:414e9c822e99 58 uint32_t ul_hour, ul_minute, ul_second;
mbed_official 107:414e9c822e99 59 uint32_t ul_year, ul_month, ul_day, ul_week;
mbed_official 107:414e9c822e99 60
mbed_official 107:414e9c822e99 61 rtc_get_time(RTC, &ul_hour, &ul_minute, &ul_second);
mbed_official 107:414e9c822e99 62 rtc_get_date(RTC, &ul_year, &ul_month, &ul_day, &ul_week);
mbed_official 107:414e9c822e99 63
mbed_official 107:414e9c822e99 64 timeinfo.tm_sec = ul_second;
mbed_official 107:414e9c822e99 65 timeinfo.tm_min = ul_minute;
mbed_official 107:414e9c822e99 66 timeinfo.tm_hour = ul_hour;
mbed_official 107:414e9c822e99 67 timeinfo.tm_mday = ul_day;
mbed_official 107:414e9c822e99 68 timeinfo.tm_wday = ul_week;
mbed_official 107:414e9c822e99 69 timeinfo.tm_mon = ul_month;
mbed_official 107:414e9c822e99 70 timeinfo.tm_year = (ul_year - 1900);
mbed_official 107:414e9c822e99 71
mbed_official 107:414e9c822e99 72 /* Convert to timestamp */
mbed_official 107:414e9c822e99 73 time_t t = mktime(&timeinfo);
mbed_official 107:414e9c822e99 74 return t;
mbed_official 107:414e9c822e99 75 }
mbed_official 107:414e9c822e99 76
mbed_official 107:414e9c822e99 77 void rtc_write(time_t t)
mbed_official 107:414e9c822e99 78 {
mbed_official 107:414e9c822e99 79 if (!rtc_inited) {
mbed_official 107:414e9c822e99 80 /* Initialize the RTC is not yet initialized */
mbed_official 107:414e9c822e99 81 rtc_init();
mbed_official 107:414e9c822e99 82 }
mbed_official 107:414e9c822e99 83 struct tm *timeinfo = localtime(&t);
mbed_official 107:414e9c822e99 84 uint32_t ul_hour, ul_minute, ul_second;
mbed_official 107:414e9c822e99 85 uint32_t ul_year, ul_month, ul_day, ul_week;
mbed_official 107:414e9c822e99 86
mbed_official 107:414e9c822e99 87 ul_second = timeinfo->tm_sec;
mbed_official 107:414e9c822e99 88 ul_minute = timeinfo->tm_min;
mbed_official 107:414e9c822e99 89 ul_hour = timeinfo->tm_hour;
mbed_official 107:414e9c822e99 90 ul_day = timeinfo->tm_mday;
mbed_official 107:414e9c822e99 91 ul_week = timeinfo->tm_wday;
mbed_official 107:414e9c822e99 92 ul_month = timeinfo->tm_mon;
mbed_official 107:414e9c822e99 93 ul_year = timeinfo->tm_year;
mbed_official 107:414e9c822e99 94
mbed_official 107:414e9c822e99 95 /* Set the RTC */
mbed_official 107:414e9c822e99 96 rtc_set_time(RTC, ul_hour, ul_minute, ul_second);
mbed_official 107:414e9c822e99 97 rtc_set_date(RTC, ul_year, ul_month, ul_day, ul_week);
mbed_official 107:414e9c822e99 98 }