mbed library sources. Supersedes mbed-src.
Fork of mbed by
Diff: targets/hal/TARGET_Atmel/TARGET_SAM_CortexM4/rtc_api.c
- Revision:
- 107:414e9c822e99
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_Atmel/TARGET_SAM_CortexM4/rtc_api.c Tue Apr 05 18:15:12 2016 +0100 @@ -0,0 +1,98 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "mbed_assert.h" +#include "rtc_api.h" +#include "cmsis.h" +#include "sysclk.h" +#include "rtc.h" + +static int rtc_inited = 0; + +extern uint8_t g_sys_init; + +void rtc_init(void) +{ + if (g_sys_init == 0) { + sysclk_init(); + system_board_init(); + g_sys_init = 1; + } + /* Default RTC configuration, 24-hour mode */ + rtc_set_hour_mode(RTC, 0); + rtc_inited = 1; +} + +void rtc_free(void) +{ + /*This is a free running peripheral and cannot be disabled*/ + rtc_inited = 0; +} + + +int rtc_isenabled(void) +{ + return rtc_inited; +} + + +time_t rtc_read(void) +{ + if (!rtc_inited) { + /* Return invalid time for now! */ + return 0; + } + struct tm timeinfo; + uint32_t ul_hour, ul_minute, ul_second; + uint32_t ul_year, ul_month, ul_day, ul_week; + + rtc_get_time(RTC, &ul_hour, &ul_minute, &ul_second); + rtc_get_date(RTC, &ul_year, &ul_month, &ul_day, &ul_week); + + timeinfo.tm_sec = ul_second; + timeinfo.tm_min = ul_minute; + timeinfo.tm_hour = ul_hour; + timeinfo.tm_mday = ul_day; + timeinfo.tm_wday = ul_week; + timeinfo.tm_mon = ul_month; + timeinfo.tm_year = (ul_year - 1900); + + /* Convert to timestamp */ + time_t t = mktime(&timeinfo); + return t; +} + +void rtc_write(time_t t) +{ + if (!rtc_inited) { + /* Initialize the RTC is not yet initialized */ + rtc_init(); + } + struct tm *timeinfo = localtime(&t); + uint32_t ul_hour, ul_minute, ul_second; + uint32_t ul_year, ul_month, ul_day, ul_week; + + ul_second = timeinfo->tm_sec; + ul_minute = timeinfo->tm_min; + ul_hour = timeinfo->tm_hour; + ul_day = timeinfo->tm_mday; + ul_week = timeinfo->tm_wday; + ul_month = timeinfo->tm_mon; + ul_year = timeinfo->tm_year; + + /* Set the RTC */ + rtc_set_time(RTC, ul_hour, ul_minute, ul_second); + rtc_set_date(RTC, ul_year, ul_month, ul_day, ul_week); +} \ No newline at end of file