TimerEvent.cpp

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 "drivers/TimerEvent.h"
00017 
00018 #include <stddef.h>
00019 #include "hal/ticker_api.h"
00020 #include "hal/us_ticker_api.h"
00021 
00022 namespace mbed {
00023 
00024 TimerEvent::TimerEvent() : event(), _ticker_data(get_us_ticker_data())
00025 {
00026     ticker_set_handler(_ticker_data, (&TimerEvent::irq));
00027 }
00028 
00029 TimerEvent::TimerEvent(const ticker_data_t *data) : event(), _ticker_data(data)
00030 {
00031     ticker_set_handler(_ticker_data, (&TimerEvent::irq));
00032 }
00033 
00034 void TimerEvent::irq(uint32_t id)
00035 {
00036     TimerEvent *timer_event = (TimerEvent *)id;
00037     timer_event->handler();
00038 }
00039 
00040 TimerEvent::~TimerEvent()
00041 {
00042     remove();
00043 }
00044 
00045 // insert in to linked list
00046 void TimerEvent::insert(timestamp_t timestamp)
00047 {
00048     ticker_insert_event(_ticker_data, &event, timestamp, (uint32_t)this);
00049 }
00050 
00051 void TimerEvent::insert_absolute(us_timestamp_t timestamp)
00052 {
00053     ticker_insert_event_us(_ticker_data, &event, timestamp, (uint32_t)this);
00054 }
00055 
00056 void TimerEvent::remove()
00057 {
00058     ticker_remove_event(_ticker_data, &event);
00059 }
00060 
00061 } // namespace mbed