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comparison packages/kernel/current/include/timer.hxx @ 0:3111d98ba7b3 ecos-v1_1-release

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Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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-1:000000000000 0:3111d98ba7b3
1 #ifndef CYGONCE_KERNEL_TIMER_HXX
2 #define CYGONCE_KERNEL_TIMER_HXX
3
4 //==========================================================================
5 //
6 // timer.hxx
7 //
8 // Timer handler class declaration(s)
9 //
10 //==========================================================================
11 //####COPYRIGHTBEGIN####
12 //
13 // -------------------------------------------
14 // The contents of this file are subject to the Cygnus eCos Public License
15 // Version 1.0 (the "License"); you may not use this file except in
16 // compliance with the License. You may obtain a copy of the License at
17 // http://sourceware.cygnus.com/ecos
18 //
19 // Software distributed under the License is distributed on an "AS IS"
20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
21 // License for the specific language governing rights and limitations under
22 // the License.
23 //
24 // The Original Code is eCos - Embedded Cygnus Operating System, released
25 // September 30, 1998.
26 //
27 // The Initial Developer of the Original Code is Cygnus. Portions created
28 // by Cygnus are Copyright (C) 1998 Cygnus Solutions. All Rights Reserved.
29 // -------------------------------------------
30 //
31 //####COPYRIGHTEND####
32 //==========================================================================
33 //#####DESCRIPTIONBEGIN####
34 //
35 // Author(s): dsm
36 // Contributors: dsm
37 // Date: 1998-06-10
38 // Purpose: Define Timer class interfaces
39 // Description: This file defines the Timer class which is derived from
40 // the Alarm class to support uITRON type functionality
41 // Usage: #include <cyg/kernel/timer.hxx>
42 //
43 //####DESCRIPTIONEND####
44 //
45 //==========================================================================
46
47 #include <cyg/kernel/ktypes.h>
48 #include <cyg/infra/cyg_ass.h> // assertion macros
49 #include <cyg/kernel/clock.hxx> // Cyg_Alarm
50
51 // -------------------------------------------------------------------------
52 // Timer handler class
53
54 class Cyg_Timer
55 : public Cyg_Alarm
56 {
57 public:
58
59 CYGDBG_DEFINE_CHECK_THIS
60
61 Cyg_Timer();
62
63 ~Cyg_Timer();
64
65 enum {
66 DISABLE = 0,
67 ENABLE = 1,
68 RESET = 2,
69 };
70
71 void initialize(
72 Cyg_Counter *counter,
73 cyg_alarm_fn alarm_fn,
74 CYG_ADDRWORD data,
75 cyg_tick_count trigger, // absolute time
76 cyg_tick_count interval, // 0 => one shot, else repeating
77 cyg_uint32 action // (DISABLE | ENABLE)
78 );
79
80 void activate(cyg_uint32 action); // (DISABLE | ENABLE) [|RESET]
81
82 cyg_tick_count get_trigger();
83 cyg_bool is_enabled();
84 cyg_bool is_initialized();
85 CYG_ADDRWORD get_data();
86 };
87
88 // -------------------------------------------------------------------------
89 // Timer inlines
90
91 inline cyg_tick_count
92 Cyg_Timer::get_trigger()
93 {
94 return trigger;
95 }
96
97 inline cyg_bool
98 Cyg_Timer::is_initialized()
99 {
100 return NULL != counter;
101 }
102
103 inline cyg_bool
104 Cyg_Timer::is_enabled()
105 {
106 return enabled;
107 }
108
109 inline CYG_ADDRWORD
110 Cyg_Timer::get_data()
111 {
112 return data;
113 }
114
115 #endif // ifndef CYGONCE_KERNEL_TIMER_HXX
116 // EOF timer.hxx