|
207
|
1 |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
|
|
2 |
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
|
|
|
3 |
<title>CanFestival: /home/epimerde/documents/tc11/CanFestival-3/src/timer.c Source File</title>
|
|
|
4 |
<link href="doxygen.css" rel="stylesheet" type="text/css">
|
|
|
5 |
<link href="tabs.css" rel="stylesheet" type="text/css">
|
|
|
6 |
</head><body>
|
|
|
7 |
<!-- Generated by Doxygen 1.5.1 -->
|
|
|
8 |
<div class="tabs">
|
|
|
9 |
<ul>
|
|
|
10 |
<li><a href="main.html"><span>Main Page</span></a></li>
|
|
|
11 |
<li id="current"><a href="files.html"><span>Files</span></a></li>
|
|
|
12 |
</ul></div>
|
|
|
13 |
<div class="tabs">
|
|
|
14 |
<ul>
|
|
|
15 |
<li><a href="files.html"><span>File List</span></a></li>
|
|
|
16 |
<li><a href="globals.html"><span>Globals</span></a></li>
|
|
|
17 |
</ul></div>
|
|
|
18 |
<h1>/home/epimerde/documents/tc11/CanFestival-3/src/timer.c</h1><a href="timer_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
|
|
|
19 |
<a name="l00002"></a>00002 <span class="comment">This file is part of CanFestival, a library implementing CanOpen Stack. </span>
|
|
|
20 |
<a name="l00003"></a>00003 <span class="comment"></span>
|
|
|
21 |
<a name="l00004"></a>00004 <span class="comment">Copyright (C): Edouard TISSERANT and Francis DUPIN</span>
|
|
|
22 |
<a name="l00005"></a>00005 <span class="comment"></span>
|
|
|
23 |
<a name="l00006"></a>00006 <span class="comment">See COPYING file for copyrights details.</span>
|
|
|
24 |
<a name="l00007"></a>00007 <span class="comment"></span>
|
|
|
25 |
<a name="l00008"></a>00008 <span class="comment">This library is free software; you can redistribute it and/or</span>
|
|
|
26 |
<a name="l00009"></a>00009 <span class="comment">modify it under the terms of the GNU Lesser General Public</span>
|
|
|
27 |
<a name="l00010"></a>00010 <span class="comment">License as published by the Free Software Foundation; either</span>
|
|
|
28 |
<a name="l00011"></a>00011 <span class="comment">version 2.1 of the License, or (at your option) any later version.</span>
|
|
|
29 |
<a name="l00012"></a>00012 <span class="comment"></span>
|
|
|
30 |
<a name="l00013"></a>00013 <span class="comment">This library is distributed in the hope that it will be useful,</span>
|
|
|
31 |
<a name="l00014"></a>00014 <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
|
|
|
32 |
<a name="l00015"></a>00015 <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
|
|
|
33 |
<a name="l00016"></a>00016 <span class="comment">Lesser General Public License for more details.</span>
|
|
|
34 |
<a name="l00017"></a>00017 <span class="comment"></span>
|
|
|
35 |
<a name="l00018"></a>00018 <span class="comment">You should have received a copy of the GNU Lesser General Public</span>
|
|
|
36 |
<a name="l00019"></a>00019 <span class="comment">License along with this library; if not, write to the Free Software</span>
|
|
|
37 |
<a name="l00020"></a>00020 <span class="comment">Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
|
|
|
38 |
<a name="l00021"></a>00021 <span class="comment">*/</span>
|
|
|
39 |
<a name="l00022"></a>00022
|
|
|
40 |
<a name="l00023"></a>00023 <span class="comment">/* #define DEBUG_WAR_CONSOLE_ON */</span>
|
|
|
41 |
<a name="l00024"></a>00024 <span class="comment">/* #define DEBUG_ERR_CONSOLE_ON */</span>
|
|
|
42 |
<a name="l00025"></a>00025
|
|
|
43 |
<a name="l00026"></a>00026 <span class="preprocessor">#include <applicfg.h></span>
|
|
|
44 |
<a name="l00027"></a>00027 <span class="preprocessor">#include "timer.h"</span>
|
|
|
45 |
<a name="l00028"></a>00028
|
|
|
46 |
<a name="l00029"></a>00029 <span class="comment">/* --------- The timer table --------- */</span>
|
|
|
47 |
<a name="l00030"></a><a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">00030</a> s_timer_entry <a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>[MAX_NB_TIMER] = {{TIMER_FREE, NULL, NULL, 0, 0, 0},};
|
|
|
48 |
<a name="l00031"></a>00031
|
|
|
49 |
<a name="l00032"></a><a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">00032</a> TIMEVAL <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = TIMEVAL_MAX;
|
|
|
50 |
<a name="l00033"></a><a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">00033</a> TIMER_HANDLE <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> = -1;
|
|
|
51 |
<a name="l00034"></a>00034
|
|
|
52 |
<a name="l00035"></a><a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">00035</a> <span class="preprocessor">#define min_val(a,b) ((a<b)?a:b)</span>
|
|
|
53 |
<a name="l00036"></a>00036 <span class="preprocessor"></span>
|
|
|
54 |
<a name="l00037"></a>00037 <span class="comment">/* --------- Use this to declare a new alarm --------- */</span>
|
|
|
55 |
<a name="l00038"></a><a class="code" href="timer_8c.html#11c2616d78f06ed9144ef662f757b128">00038</a> TIMER_HANDLE <a class="code" href="timer_8c.html#11c2616d78f06ed9144ef662f757b128">SetAlarm</a>(CO_Data* d, UNS32 <span class="keywordtype">id</span>, TimerCallback_t callback, TIMEVAL value, TIMEVAL period)
|
|
|
56 |
<a name="l00039"></a>00039 {
|
|
|
57 |
<a name="l00040"></a>00040 <span class="comment">/*printf("SetAlarm(UNS32 id=%d, TimerCallback_t callback=%x, TIMEVAL value=%d, TIMEVAL period=%d)\n", id, callback, value, period); */</span>
|
|
|
58 |
<a name="l00041"></a>00041 TIMER_HANDLE i;
|
|
|
59 |
<a name="l00042"></a>00042 TIMER_HANDLE row_number = TIMER_NONE;
|
|
|
60 |
<a name="l00043"></a>00043
|
|
|
61 |
<a name="l00044"></a>00044 <span class="comment">/* in order to decide new timer setting we have to run over all timer rows */</span>
|
|
|
62 |
<a name="l00045"></a>00045 <span class="keywordflow">for</span>(i=0; i <= <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> + 1 && i < MAX_NB_TIMER; i++)
|
|
|
63 |
<a name="l00046"></a>00046 {
|
|
|
64 |
<a name="l00047"></a>00047 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
|
|
|
65 |
<a name="l00048"></a>00048
|
|
|
66 |
<a name="l00049"></a>00049 <span class="keywordflow">if</span> (callback && <span class="comment">/* if something to store */</span>
|
|
|
67 |
<a name="l00050"></a>00050 row->state == TIMER_FREE) <span class="comment">/* and empty row */</span>
|
|
|
68 |
<a name="l00051"></a>00051 { <span class="comment">/* just store */</span>
|
|
|
69 |
<a name="l00052"></a>00052 row->callback = callback;
|
|
|
70 |
<a name="l00053"></a>00053 row->d = d;
|
|
|
71 |
<a name="l00054"></a>00054 row->id = <span class="keywordtype">id</span>;
|
|
|
72 |
<a name="l00055"></a>00055 row->val = value;
|
|
|
73 |
<a name="l00056"></a>00056 row->interval = period;
|
|
|
74 |
<a name="l00057"></a>00057 row->state = TIMER_ARMED;
|
|
|
75 |
<a name="l00058"></a>00058 row_number = i;
|
|
|
76 |
<a name="l00059"></a>00059 <span class="keywordflow">break</span>;
|
|
|
77 |
<a name="l00060"></a>00060 }
|
|
|
78 |
<a name="l00061"></a>00061 }
|
|
|
79 |
<a name="l00062"></a>00062
|
|
|
80 |
<a name="l00063"></a>00063 <span class="keywordflow">if</span> (row_number != TIMER_NONE) <span class="comment">/* if successfull **/</span>
|
|
|
81 |
<a name="l00064"></a>00064 {
|
|
|
82 |
<a name="l00065"></a>00065 TIMEVAL real_timer_value;
|
|
|
83 |
<a name="l00066"></a>00066 TIMEVAL elapsed_time;
|
|
|
84 |
<a name="l00067"></a>00067
|
|
|
85 |
<a name="l00068"></a>00068 <span class="keywordflow">if</span> (row_number == <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a> + 1) <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>++;
|
|
|
86 |
<a name="l00069"></a>00069
|
|
|
87 |
<a name="l00070"></a>00070 <span class="comment">/* set next wakeup alarm if new entry is sooner than others, or if it is alone */</span>
|
|
|
88 |
<a name="l00071"></a>00071 real_timer_value = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(value, TIMEVAL_MAX);
|
|
|
89 |
<a name="l00072"></a>00072 elapsed_time = getElapsedTime();
|
|
|
90 |
<a name="l00073"></a>00073
|
|
|
91 |
<a name="l00074"></a>00074 <span class="comment">/*printf("elapsed_time=%d real_timer_value=%d total_sleep_time=%d\n", elapsed_time, real_timer_value, total_sleep_time); */</span>
|
|
|
92 |
<a name="l00075"></a>00075 <span class="keywordflow">if</span> (<a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> > elapsed_time && <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> - elapsed_time > real_timer_value)
|
|
|
93 |
<a name="l00076"></a>00076 {
|
|
|
94 |
<a name="l00077"></a>00077 <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = elapsed_time + real_timer_value;
|
|
|
95 |
<a name="l00078"></a>00078 setTimer(real_timer_value);
|
|
|
96 |
<a name="l00079"></a>00079 }
|
|
|
97 |
<a name="l00080"></a>00080 <span class="comment">/*printf("SetAlarm() return %d\n", row_number); */</span>
|
|
|
98 |
<a name="l00081"></a>00081 <span class="keywordflow">return</span> row_number;
|
|
|
99 |
<a name="l00082"></a>00082 }
|
|
|
100 |
<a name="l00083"></a>00083 <span class="keywordflow">return</span> TIMER_NONE;
|
|
|
101 |
<a name="l00084"></a>00084 }
|
|
|
102 |
<a name="l00085"></a>00085
|
|
|
103 |
<a name="l00086"></a>00086 <span class="comment">/* --------- Use this to remove an alarm --------- */</span>
|
|
|
104 |
<a name="l00087"></a><a class="code" href="timer_8c.html#991b3cfaac2f201b14d5530f75985c21">00087</a> TIMER_HANDLE <a class="code" href="timer_8c.html#991b3cfaac2f201b14d5530f75985c21">DelAlarm</a>(TIMER_HANDLE handle)
|
|
|
105 |
<a name="l00088"></a>00088 {
|
|
|
106 |
<a name="l00089"></a>00089 <span class="comment">/* Quick and dirty. system timer will continue to be trigged, but no action will be preformed. */</span>
|
|
|
107 |
<a name="l00090"></a>00090 MSG_WAR(0x3320, <span class="stringliteral">"DelAlarm. handle = "</span>, handle);
|
|
|
108 |
<a name="l00091"></a>00091 <span class="keywordflow">if</span>(handle != TIMER_NONE)
|
|
|
109 |
<a name="l00092"></a>00092 {
|
|
|
110 |
<a name="l00093"></a>00093 <span class="keywordflow">if</span>(handle == <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>)
|
|
|
111 |
<a name="l00094"></a>00094 <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>--;
|
|
|
112 |
<a name="l00095"></a>00095 <a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>[handle].state = TIMER_FREE;
|
|
|
113 |
<a name="l00096"></a>00096 }
|
|
|
114 |
<a name="l00097"></a>00097 <span class="keywordflow">else</span> {
|
|
|
115 |
<a name="l00098"></a>00098 }
|
|
|
116 |
<a name="l00099"></a>00099 <span class="keywordflow">return</span> TIMER_NONE;
|
|
|
117 |
<a name="l00100"></a>00100 }
|
|
|
118 |
<a name="l00101"></a>00101
|
|
|
119 |
<a name="l00102"></a>00102
|
|
|
120 |
<a name="l00103"></a>00103 <span class="comment">/* --------- TimeDispatch is called on each timer expiration --------- */</span>
|
|
|
121 |
<a name="l00104"></a><a class="code" href="timer_8c.html#fa75192a3238525618f8cb83004930cc">00104</a> <span class="keywordtype">void</span> <a class="code" href="timer_8c.html#fa75192a3238525618f8cb83004930cc">TimeDispatch</a>()
|
|
|
122 |
<a name="l00105"></a>00105 {
|
|
|
123 |
<a name="l00106"></a>00106 TIMER_HANDLE i;
|
|
|
124 |
<a name="l00107"></a>00107 TIMEVAL next_wakeup = TIMEVAL_MAX; <span class="comment">/* used to compute when should normaly occur next wakeup */</span>
|
|
|
125 |
<a name="l00108"></a>00108 <span class="comment">/* First run : change timer state depending on time */</span>
|
|
|
126 |
<a name="l00109"></a>00109 <span class="comment">/* Get time since timer signal */</span>
|
|
|
127 |
<a name="l00110"></a>00110 TIMEVAL overrun = getElapsedTime();
|
|
|
128 |
<a name="l00111"></a>00111
|
|
|
129 |
<a name="l00112"></a>00112 TIMEVAL real_total_sleep_time = <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> + overrun;
|
|
|
130 |
<a name="l00113"></a>00113 <span class="comment">/*printf("total_sleep_time %d + overrun %d\n", total_sleep_time , overrun); */</span>
|
|
|
131 |
<a name="l00114"></a>00114
|
|
|
132 |
<a name="l00115"></a>00115 <span class="keywordflow">for</span>(i=0; i <= <a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>; i++)
|
|
|
133 |
<a name="l00116"></a>00116 {
|
|
|
134 |
<a name="l00117"></a>00117 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
|
|
|
135 |
<a name="l00118"></a>00118
|
|
|
136 |
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (row->state & TIMER_ARMED) <span class="comment">/* if row is active */</span>
|
|
|
137 |
<a name="l00120"></a>00120 {
|
|
|
138 |
<a name="l00121"></a>00121 if (row->val <= real_total_sleep_time) <span class="comment">/* to be trigged */</span>
|
|
|
139 |
<a name="l00122"></a>00122 {
|
|
|
140 |
<a name="l00123"></a>00123 <span class="comment">/*printf("row->val(%d) <= (%d)real_total_sleep_time\n", row->val, real_total_sleep_time); */</span>
|
|
|
141 |
<a name="l00124"></a>00124 if (!row->interval) <span class="comment">/* if simply outdated */</span>
|
|
|
142 |
<a name="l00125"></a>00125 {
|
|
|
143 |
<a name="l00126"></a>00126 row->state = TIMER_TRIG; <span class="comment">/* ask for trig */</span>
|
|
|
144 |
<a name="l00127"></a>00127 }
|
|
|
145 |
<a name="l00128"></a>00128 <span class="keywordflow">else</span> <span class="comment">/* or period have expired */</span>
|
|
|
146 |
<a name="l00129"></a>00129 {
|
|
|
147 |
<a name="l00130"></a>00130 <span class="comment">/* set val as interval, with overrun correction */</span>
|
|
|
148 |
<a name="l00131"></a>00131 row->val = row->interval - (overrun % row->interval);
|
|
|
149 |
<a name="l00132"></a>00132 row->state = TIMER_TRIG_PERIOD; <span class="comment">/* ask for trig, periodic */</span>
|
|
|
150 |
<a name="l00133"></a>00133 <span class="comment">/* Check if this new timer value is the soonest */</span>
|
|
|
151 |
<a name="l00134"></a>00134 next_wakeup = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(row->val,next_wakeup);
|
|
|
152 |
<a name="l00135"></a>00135 }
|
|
|
153 |
<a name="l00136"></a>00136 }
|
|
|
154 |
<a name="l00137"></a>00137 <span class="keywordflow">else</span>
|
|
|
155 |
<a name="l00138"></a>00138 {
|
|
|
156 |
<a name="l00139"></a>00139 <span class="comment">/* Each armed timer value in decremented. */</span>
|
|
|
157 |
<a name="l00140"></a>00140 row->val -= real_total_sleep_time;
|
|
|
158 |
<a name="l00141"></a>00141
|
|
|
159 |
<a name="l00142"></a>00142 <span class="comment">/* Check if this new timer value is the soonest */</span>
|
|
|
160 |
<a name="l00143"></a>00143 next_wakeup = <a class="code" href="timer_8c.html#8536312cebeeea3a23dc0027800122c9">min_val</a>(row->val,next_wakeup);
|
|
|
161 |
<a name="l00144"></a>00144 }
|
|
|
162 |
<a name="l00145"></a>00145 }
|
|
|
163 |
<a name="l00146"></a>00146 }
|
|
|
164 |
<a name="l00147"></a>00147
|
|
|
165 |
<a name="l00148"></a>00148 <span class="comment">/* Remember how much time we should sleep. */</span>
|
|
|
166 |
<a name="l00149"></a>00149 <a class="code" href="timer_8c.html#5e9651eed13d70bcce9bdf3489a72a3d">total_sleep_time</a> = next_wakeup;
|
|
|
167 |
<a name="l00150"></a>00150
|
|
|
168 |
<a name="l00151"></a>00151 <span class="comment">/* Set timer to soonest occurence */</span>
|
|
|
169 |
<a name="l00152"></a>00152 setTimer(next_wakeup);
|
|
|
170 |
<a name="l00153"></a>00153
|
|
|
171 |
<a name="l00154"></a>00154 <span class="comment">/* Then trig them or not. */</span>
|
|
|
172 |
<a name="l00155"></a>00155 <span class="keywordflow">for</span>(i=0; i<=<a class="code" href="timer_8c.html#1dab7b9a29bdee8b1931f8ea90685c6f">last_timer_raw</a>; i++)
|
|
|
173 |
<a name="l00156"></a>00156 {
|
|
|
174 |
<a name="l00157"></a>00157 s_timer_entry *row = (<a class="code" href="timer_8c.html#a74e2cf2504bfd18b12f112c7aaad845">timers</a>+i);
|
|
|
175 |
<a name="l00158"></a>00158
|
|
|
176 |
<a name="l00159"></a>00159 <span class="keywordflow">if</span> (row->state & TIMER_TRIG)
|
|
|
177 |
<a name="l00160"></a>00160 {
|
|
|
178 |
<a name="l00161"></a>00161 row->state &= ~TIMER_TRIG; <span class="comment">/* reset trig state (will be free if not periodic) */</span>
|
|
|
179 |
<a name="l00162"></a>00162 <span class="keywordflow">if</span>(row->callback)
|
|
|
180 |
<a name="l00163"></a>00163 (*row->callback)(row->d, row->id); <span class="comment">/* trig ! */</span>
|
|
|
181 |
<a name="l00164"></a>00164 }
|
|
|
182 |
<a name="l00165"></a>00165 }
|
|
|
183 |
<a name="l00166"></a>00166 }
|
|
|
184 |
<a name="l00167"></a>00167
|
|
|
185 |
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jun 4 17:09:27 2007 for CanFestival by
|
|
|
186 |
<a href="http://www.doxygen.org/index.html">
|
|
|
187 |
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.1 </small></address>
|
|
|
188 |
</body>
|
|
|
189 |
</html>
|