Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1702 | - | 1 | /* Copyright (C) 2010-2011 Circuits At Home, LTD. All rights reserved. |
| 2 | |||
| 3 | This software may be distributed and modified under the terms of the GNU |
||
| 4 | General Public License version 2 (GPL2) as published by the Free Software |
||
| 5 | Foundation and appearing in the file GPL2.TXT included in the packaging of |
||
| 6 | this file. Please note that GPL2 Section 2[b] requires that all works based |
||
| 7 | on this software must also be made publicly available under the terms of |
||
| 8 | the GPL2 ("Copyleft"). |
||
| 9 | |||
| 10 | Contact information |
||
| 11 | ------------------- |
||
| 12 | |||
| 13 | Circuits At Home, LTD |
||
| 14 | Web : http://www.circuitsathome.com |
||
| 15 | e-mail : support@circuitsathome.com |
||
| 16 | */ |
||
| 17 | #ifndef __SIMPLETIMER_H__ |
||
| 18 | #define __SIMPLETIMER_H__ |
||
| 19 | |||
| 20 | #include <inttypes.h> |
||
| 21 | #include <avr/pgmspace.h> |
||
| 22 | #include "WProgram.h" |
||
| 23 | |||
| 24 | #define MSB_MASK 0x80000000 |
||
| 25 | |||
| 26 | typedef void (*TimerCallback)(); |
||
| 27 | |||
| 28 | class SimpleTimer |
||
| 29 | { |
||
| 30 | struct TimerAttributes |
||
| 31 | { |
||
| 32 | uint8_t bmAllocated : 1; // 1 if allocated for some routine |
||
| 33 | uint8_t bmTimerSet : 1; // 1 if all data for the timer is set |
||
| 34 | uint8_t bmEnabled : 1; // 1 if enabled and running |
||
| 35 | uint8_t bmOneTime : 1; // 1 if the task should be executed onece |
||
| 36 | uint8_t bmSign : 1; // necessary to handle millis() rollovers |
||
| 37 | }; |
||
| 38 | |||
| 39 | TimerAttributes timerAttribs; |
||
| 40 | uint32_t timeOut; |
||
| 41 | uint32_t timeToFire; |
||
| 42 | TimerCallback pCallback; |
||
| 43 | |||
| 44 | bool TimeoutEllapsed(); |
||
| 45 | |||
| 46 | public: |
||
| 47 | SimpleTimer() : timeOut(0), timeToFire(0), pCallback(NULL) { *((uint8_t*)&timerAttribs) = 0; }; |
||
| 48 | |||
| 49 | void SetAllocated(bool yes) { timerAttribs.bmAllocated = (yes) ? 1 : 0; }; |
||
| 50 | bool IsAllocated() { return timerAttribs.bmAllocated == 1; }; |
||
| 51 | bool IsEnabled() { return timerAttribs.bmEnabled == 1; }; |
||
| 52 | |||
| 53 | bool Set(TimerCallback task, uint32_t timeout, bool once = false); |
||
| 54 | void Reset(); |
||
| 55 | bool Enable(); |
||
| 56 | void Disable(); |
||
| 57 | void Run(); |
||
| 58 | |||
| 59 | uint32_t TimeLeft() |
||
| 60 | { |
||
| 61 | if (timerAttribs.bmEnabled != 1) |
||
| 62 | return 0; |
||
| 63 | |||
| 64 | int32_t time_left = timeToFire - millis(); |
||
| 65 | return (time_left > 0) ? time_left : 0; |
||
| 66 | }; |
||
| 67 | }; |
||
| 68 | |||
| 69 | #define INVALID_TIMER_ID 0 |
||
| 70 | |||
| 71 | template <class TIMER_TYPE, const uint8_t POOL_SIZE> |
||
| 72 | class TimerPool |
||
| 73 | { |
||
| 74 | TIMER_TYPE thePool[POOL_SIZE]; |
||
| 75 | |||
| 76 | public: |
||
| 77 | TimerPool() {}; |
||
| 78 | |||
| 79 | uint8_t SetTimer(TimerCallback pfunc, uint32_t msec, bool once); |
||
| 80 | bool EnableTimer(uint8_t timer_id) { if (!timer_id) return false; thePool[timer_id-1].Enable(); return true; }; |
||
| 81 | bool DisableTimer(uint8_t timer_id) { if (!timer_id) return false; thePool[timer_id-1].Disable(); return true; }; |
||
| 82 | bool ReleaseTimer(uint8_t &timer_id){ if (!timer_id) return false; thePool[timer_id-1].SetAllocated(false); thePool[timer_id-1].Reset(); timer_id = 0; return true; }; |
||
| 83 | void Run(); |
||
| 84 | }; |
||
| 85 | |||
| 86 | template <class TIMER_TYPE, const uint8_t POOL_SIZE> |
||
| 87 | uint8_t TimerPool<TIMER_TYPE, POOL_SIZE>::SetTimer(TimerCallback pfunc, uint32_t msec, bool once) |
||
| 88 | { |
||
| 89 | for (uint8_t i=0; i<POOL_SIZE; i++) |
||
| 90 | { |
||
| 91 | if (!thePool[i].IsAllocated()) |
||
| 92 | { |
||
| 93 | thePool[i].SetAllocated(true); |
||
| 94 | thePool[i].SetTimer(pfunc, msec, once); |
||
| 95 | return i + 1; |
||
| 96 | } |
||
| 97 | } |
||
| 98 | return INVALID_TIMER_ID; |
||
| 99 | } |
||
| 100 | |||
| 101 | template <class TIMER_TYPE, const uint8_t POOL_SIZE> |
||
| 102 | void TimerPool<TIMER_TYPE, POOL_SIZE>::Run() |
||
| 103 | { |
||
| 104 | for (uint8_t i=0; i<POOL_SIZE; i++) |
||
| 105 | thePool[i].Run(); |
||
| 106 | } |
||
| 107 | |||
| 108 | #endif // __SIMPLETIMER_H__ |