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| Rev | Author | Line No. | Line |
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| 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 |
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| 4 | General Public License version 2 (GPL2) as published by the Free Software |
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| 5 | Foundation and appearing in the file GPL2.TXT included in the packaging of |
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| 6 | this file. Please note that GPL2 Section 2[b] requires that all works based |
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| 7 | on this software must also be made publicly available under the terms of |
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| 8 | the GPL2 ("Copyleft"). |
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| 9 | |||
| 10 | Contact information |
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| 11 | ------------------- |
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| 12 | |||
| 13 | Circuits At Home, LTD |
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| 14 | Web : http://www.circuitsathome.com |
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| 15 | e-mail : support@circuitsathome.com |
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| 16 | */ |
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| 17 | #include "SimpleTimer.h" |
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| 18 | |||
| 19 | bool SimpleTimer::Set(TimerCallback task, uint32_t timeout, bool once) |
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| 20 | { |
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| 21 | if (!task) |
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| 22 | return false; |
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| 23 | |||
| 24 | timeOut = timeout; |
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| 25 | pCallback = task; |
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| 26 | timerAttribs.bmOneTime = (once) ? 1 : 0; |
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| 27 | timerAttribs.bmTimerSet = 1; |
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| 28 | timerAttribs.bmEnabled = 0; |
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| 29 | return true; |
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| 30 | } |
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| 31 | |||
| 32 | void SimpleTimer::Reset() |
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| 33 | { |
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| 34 | timerAttribs.bmTimerSet = 0; |
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| 35 | timerAttribs.bmEnabled = 0; |
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| 36 | timerAttribs.bmOneTime = 0; |
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| 37 | timerAttribs.bmSign = 0; |
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| 38 | |||
| 39 | pCallback = NULL; |
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| 40 | } |
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| 41 | |||
| 42 | bool SimpleTimer::Enable() |
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| 43 | { |
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| 44 | if (!pCallback || !timeOut) |
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| 45 | return false; |
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| 46 | |||
| 47 | uint32_t time = millis(); |
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| 48 | |||
| 49 | timeToFire = time + timeOut; |
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| 50 | |||
| 51 | timerAttribs.bmEnabled = 1; |
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| 52 | timerAttribs.bmSign = time & MSB_MASK; |
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| 53 | return true; |
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| 54 | } |
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| 55 | |||
| 56 | void SimpleTimer::Disable() |
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| 57 | { |
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| 58 | timerAttribs.bmEnabled = 0; |
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| 59 | } |
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| 60 | |||
| 61 | void SimpleTimer::Run() |
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| 62 | { |
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| 63 | if (timerAttribs.bmEnabled == 0) |
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| 64 | return; |
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| 65 | |||
| 66 | if (TimeoutEllapsed()) |
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| 67 | { |
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| 68 | if (pCallback) |
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| 69 | pCallback(); |
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| 70 | |||
| 71 | if (timerAttribs.bmOneTime == 1) |
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| 72 | timerAttribs.bmEnabled = 0; |
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| 73 | } |
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| 74 | } |
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| 75 | |||
| 76 | bool SimpleTimer::TimeoutEllapsed() |
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| 77 | { |
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| 78 | bool ret = false; |
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| 79 | uint32_t time = millis(); |
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| 80 | |||
| 81 | if (time >= timeToFire || (time < timeToFire && timerAttribs.bmSign == 1) ) |
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| 82 | { |
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| 83 | timeToFire = time + timeOut; |
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| 84 | ret = true; |
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| 85 | } |
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| 86 | timerAttribs.bmSign = (time & MSB_MASK) ? 1 : 0; |
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| 87 | return ret; |
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| 88 | } |