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df27a6a3 | 1 | /* |
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2 | This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl). |
3 | Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. | |
4 | Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. | |
df27a6a3 | 5 | You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>. |
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6 | */ |
7 | ||
8 | ||
9 | ||
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10 | #ifndef SLOWTICKER_H |
11 | #define SLOWTICKER_H | |
12 | ||
8d54c34c JM |
13 | #include "Module.h" |
14 | ||
ded56b35 AW |
15 | using namespace std; |
16 | #include <vector> | |
ded56b35 | 17 | |
bf9e8a8f | 18 | #include "libs/Hook.h" |
65fe0408 MM |
19 | #include "libs/Pin.h" |
20 | ||
50b9ac30 MM |
21 | #include "system_LPC17xx.h" // for SystemCoreClock |
22 | #include <math.h> | |
23 | ||
d9ebc974 | 24 | class SlowTicker : public Module{ |
ded56b35 AW |
25 | public: |
26 | SlowTicker(); | |
4df07f88 MM |
27 | |
28 | void on_module_loaded(void); | |
29 | void on_idle(void*); | |
3c4f2dd8 | 30 | void on_gcode_received(void*); |
1fcb3a2a | 31 | void on_gcode_execute(void*); |
4df07f88 | 32 | |
ded56b35 AW |
33 | void set_frequency( int frequency ); |
34 | void tick(); | |
35 | // For some reason this can't go in the .cpp, see : http://mbed.org/forum/mbed/topic/2774/?page=1#comment-14221 | |
62675f96 | 36 | // TODO replace this with std::function() |
1fcb3a2a | 37 | template<typename T> Hook* attach( uint32_t frequency, T *optr, uint32_t ( T::*fptr )( uint32_t ) ){ |
df27a6a3 | 38 | Hook* hook = new Hook(); |
c8f4ee77 | 39 | hook->interval = floorf((SystemCoreClock/4)/frequency); |
ded56b35 | 40 | hook->attach(optr, fptr); |
50b9ac30 | 41 | hook->countdown = hook->interval; |
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42 | |
43 | // to avoid race conditions we must stop the interupts before updating this non thread safe vector | |
44 | __disable_irq(); | |
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45 | if( frequency > this->max_frequency ){ |
46 | this->max_frequency = frequency; | |
50b9ac30 | 47 | this->set_frequency(frequency); |
df27a6a3 | 48 | } |
ded56b35 | 49 | this->hooks.push_back(hook); |
62675f96 | 50 | __enable_irq(); |
2f7d3dba | 51 | return hook; |
ded56b35 AW |
52 | } |
53 | ||
62675f96 | 54 | private: |
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55 | bool flag_1s(); |
56 | ||
df27a6a3 | 57 | vector<Hook*> hooks; |
1fcb3a2a MM |
58 | uint32_t max_frequency; |
59 | uint32_t interval; | |
60 | ||
61 | uint32_t g4_ticks; | |
62 | bool g4_pause; | |
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63 | |
64 | Pin ispbtn; | |
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65 | protected: |
66 | int flag_1s_count; | |
67 | volatile int flag_1s_flag; | |
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68 | }; |
69 | ||
70 | ||
71 | ||
72 | ||
73 | ||
ded56b35 | 74 | #endif |