[11U68]fix P0_11 to use GPIO
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rtc_time.c
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #include "rtc_api.h" 00017 00018 #include <time.h> 00019 #include "rtc_time.h" 00020 #include "us_ticker_api.h" 00021 00022 #if DEVICE_RTC 00023 static void (*_rtc_init)(void) = rtc_init; 00024 static int (*_rtc_isenabled)(void) = rtc_isenabled; 00025 static time_t (*_rtc_read)(void) = rtc_read; 00026 static void (*_rtc_write)(time_t t) = rtc_write; 00027 #else 00028 static void (*_rtc_init)(void) = NULL; 00029 static int (*_rtc_isenabled)(void) = NULL; 00030 static time_t (*_rtc_read)(void) = NULL; 00031 static void (*_rtc_write)(time_t t) = NULL; 00032 #endif 00033 00034 #ifdef __cplusplus 00035 extern "C" { 00036 #endif 00037 #if defined (__ICCARM__) 00038 time_t __time32(time_t *timer) 00039 #else 00040 time_t time(time_t *timer) 00041 #endif 00042 00043 { 00044 if (_rtc_isenabled != NULL) { 00045 if (!(_rtc_isenabled())) { 00046 set_time(0); 00047 } 00048 } 00049 00050 time_t t = 0; 00051 if (_rtc_read != NULL) { 00052 t = _rtc_read(); 00053 } 00054 00055 if (timer != NULL) { 00056 *timer = t; 00057 } 00058 return t; 00059 } 00060 00061 void set_time(time_t t) { 00062 if (_rtc_init != NULL) { 00063 _rtc_init(); 00064 } 00065 if (_rtc_write != NULL) { 00066 _rtc_write(t); 00067 } 00068 } 00069 00070 clock_t clock() { 00071 clock_t t = us_ticker_read(); 00072 t /= 1000000 / CLOCKS_PER_SEC; // convert to processor time 00073 return t; 00074 } 00075 00076 void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)) { 00077 __disable_irq(); 00078 _rtc_read = read_rtc; 00079 _rtc_write = write_rtc; 00080 _rtc_init = init_rtc; 00081 _rtc_isenabled = isenabled_rtc; 00082 __enable_irq(); 00083 } 00084 00085 00086 00087 #ifdef __cplusplus 00088 } 00089 #endif
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