PHung Tung / SRC_STM32F7

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Dependents:   WAV

api/InterruptManager.h@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 #ifndef MBED_INTERRUPTMANAGER_H
phungductung 0:e87aa4c49e95 2 #define MBED_INTERRUPTMANAGER_H
phungductung 0:e87aa4c49e95 3
phungductung 0:e87aa4c49e95 4 #include "cmsis.h"
phungductung 0:e87aa4c49e95 5 #include "CallChain.h"
phungductung 0:e87aa4c49e95 6 #include <string.h>
phungductung 0:e87aa4c49e95 7
phungductung 0:e87aa4c49e95 8 namespace mbed {
phungductung 0:e87aa4c49e95 9
phungductung 0:e87aa4c49e95 10 /** Use this singleton if you need to chain interrupt handlers.
phungductung 0:e87aa4c49e95 11 *
phungductung 0:e87aa4c49e95 12 * Example (for LPC1768):
phungductung 0:e87aa4c49e95 13 * @code
phungductung 0:e87aa4c49e95 14 * #include "InterruptManager.h"
phungductung 0:e87aa4c49e95 15 * #include "mbed.h"
phungductung 0:e87aa4c49e95 16 *
phungductung 0:e87aa4c49e95 17 * Ticker flipper;
phungductung 0:e87aa4c49e95 18 * DigitalOut led1(LED1);
phungductung 0:e87aa4c49e95 19 * DigitalOut led2(LED2);
phungductung 0:e87aa4c49e95 20 *
phungductung 0:e87aa4c49e95 21 * void flip(void) {
phungductung 0:e87aa4c49e95 22 * led1 = !led1;
phungductung 0:e87aa4c49e95 23 * }
phungductung 0:e87aa4c49e95 24 *
phungductung 0:e87aa4c49e95 25 * void handler(void) {
phungductung 0:e87aa4c49e95 26 * led2 = !led1;
phungductung 0:e87aa4c49e95 27 * }
phungductung 0:e87aa4c49e95 28 *
phungductung 0:e87aa4c49e95 29 * int main() {
phungductung 0:e87aa4c49e95 30 * led1 = led2 = 0;
phungductung 0:e87aa4c49e95 31 * flipper.attach(&flip, 1.0);
phungductung 0:e87aa4c49e95 32 * InterruptManager::get()->add_handler(handler, TIMER3_IRQn);
phungductung 0:e87aa4c49e95 33 * }
phungductung 0:e87aa4c49e95 34 * @endcode
phungductung 0:e87aa4c49e95 35 */
phungductung 0:e87aa4c49e95 36 class InterruptManager {
phungductung 0:e87aa4c49e95 37 public:
phungductung 0:e87aa4c49e95 38 /** Return the only instance of this class
phungductung 0:e87aa4c49e95 39 */
phungductung 0:e87aa4c49e95 40 static InterruptManager* get();
phungductung 0:e87aa4c49e95 41
phungductung 0:e87aa4c49e95 42 /** Destroy the current instance of the interrupt manager
phungductung 0:e87aa4c49e95 43 */
phungductung 0:e87aa4c49e95 44 static void destroy();
phungductung 0:e87aa4c49e95 45
phungductung 0:e87aa4c49e95 46 /** Add a handler for an interrupt at the end of the handler list
phungductung 0:e87aa4c49e95 47 *
phungductung 0:e87aa4c49e95 48 * @param function the handler to add
phungductung 0:e87aa4c49e95 49 * @param irq interrupt number
phungductung 0:e87aa4c49e95 50 *
phungductung 0:e87aa4c49e95 51 * @returns
phungductung 0:e87aa4c49e95 52 * The function object created for 'function'
phungductung 0:e87aa4c49e95 53 */
phungductung 0:e87aa4c49e95 54 pFunctionPointer_t add_handler(void (*function)(void), IRQn_Type irq) {
phungductung 0:e87aa4c49e95 55 return add_common(function, irq);
phungductung 0:e87aa4c49e95 56 }
phungductung 0:e87aa4c49e95 57
phungductung 0:e87aa4c49e95 58 /** Add a handler for an interrupt at the beginning of the handler list
phungductung 0:e87aa4c49e95 59 *
phungductung 0:e87aa4c49e95 60 * @param function the handler to add
phungductung 0:e87aa4c49e95 61 * @param irq interrupt number
phungductung 0:e87aa4c49e95 62 *
phungductung 0:e87aa4c49e95 63 * @returns
phungductung 0:e87aa4c49e95 64 * The function object created for 'function'
phungductung 0:e87aa4c49e95 65 */
phungductung 0:e87aa4c49e95 66 pFunctionPointer_t add_handler_front(void (*function)(void), IRQn_Type irq) {
phungductung 0:e87aa4c49e95 67 return add_common(function, irq, true);
phungductung 0:e87aa4c49e95 68 }
phungductung 0:e87aa4c49e95 69
phungductung 0:e87aa4c49e95 70 /** Add a handler for an interrupt at the end of the handler list
phungductung 0:e87aa4c49e95 71 *
phungductung 0:e87aa4c49e95 72 * @param tptr pointer to the object that has the handler function
phungductung 0:e87aa4c49e95 73 * @param mptr pointer to the actual handler function
phungductung 0:e87aa4c49e95 74 * @param irq interrupt number
phungductung 0:e87aa4c49e95 75 *
phungductung 0:e87aa4c49e95 76 * @returns
phungductung 0:e87aa4c49e95 77 * The function object created for 'tptr' and 'mptr'
phungductung 0:e87aa4c49e95 78 */
phungductung 0:e87aa4c49e95 79 template<typename T>
phungductung 0:e87aa4c49e95 80 pFunctionPointer_t add_handler(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
phungductung 0:e87aa4c49e95 81 return add_common(tptr, mptr, irq);
phungductung 0:e87aa4c49e95 82 }
phungductung 0:e87aa4c49e95 83
phungductung 0:e87aa4c49e95 84 /** Add a handler for an interrupt at the beginning of the handler list
phungductung 0:e87aa4c49e95 85 *
phungductung 0:e87aa4c49e95 86 * @param tptr pointer to the object that has the handler function
phungductung 0:e87aa4c49e95 87 * @param mptr pointer to the actual handler function
phungductung 0:e87aa4c49e95 88 * @param irq interrupt number
phungductung 0:e87aa4c49e95 89 *
phungductung 0:e87aa4c49e95 90 * @returns
phungductung 0:e87aa4c49e95 91 * The function object created for 'tptr' and 'mptr'
phungductung 0:e87aa4c49e95 92 */
phungductung 0:e87aa4c49e95 93 template<typename T>
phungductung 0:e87aa4c49e95 94 pFunctionPointer_t add_handler_front(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
phungductung 0:e87aa4c49e95 95 return add_common(tptr, mptr, irq, true);
phungductung 0:e87aa4c49e95 96 }
phungductung 0:e87aa4c49e95 97
phungductung 0:e87aa4c49e95 98 /** Remove a handler from an interrupt
phungductung 0:e87aa4c49e95 99 *
phungductung 0:e87aa4c49e95 100 * @param handler the function object for the handler to remove
phungductung 0:e87aa4c49e95 101 * @param irq the interrupt number
phungductung 0:e87aa4c49e95 102 *
phungductung 0:e87aa4c49e95 103 * @returns
phungductung 0:e87aa4c49e95 104 * true if the handler was found and removed, false otherwise
phungductung 0:e87aa4c49e95 105 */
phungductung 0:e87aa4c49e95 106 bool remove_handler(pFunctionPointer_t handler, IRQn_Type irq);
phungductung 0:e87aa4c49e95 107
phungductung 0:e87aa4c49e95 108 private:
phungductung 0:e87aa4c49e95 109 InterruptManager();
phungductung 0:e87aa4c49e95 110 ~InterruptManager();
phungductung 0:e87aa4c49e95 111
phungductung 0:e87aa4c49e95 112 // We declare the copy contructor and the assignment operator, but we don't
phungductung 0:e87aa4c49e95 113 // implement them. This way, if someone tries to copy/assign our instance,
phungductung 0:e87aa4c49e95 114 // he will get an error at compile time.
phungductung 0:e87aa4c49e95 115 InterruptManager(const InterruptManager&);
phungductung 0:e87aa4c49e95 116 InterruptManager& operator =(const InterruptManager&);
phungductung 0:e87aa4c49e95 117
phungductung 0:e87aa4c49e95 118 template<typename T>
phungductung 0:e87aa4c49e95 119 pFunctionPointer_t add_common(T *tptr, void (T::*mptr)(void), IRQn_Type irq, bool front=false) {
phungductung 0:e87aa4c49e95 120 int irq_pos = get_irq_index(irq);
phungductung 0:e87aa4c49e95 121 bool change = must_replace_vector(irq);
phungductung 0:e87aa4c49e95 122
phungductung 0:e87aa4c49e95 123 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(tptr, mptr) : _chains[irq_pos]->add(tptr, mptr);
phungductung 0:e87aa4c49e95 124 if (change)
phungductung 0:e87aa4c49e95 125 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
phungductung 0:e87aa4c49e95 126 return pf;
phungductung 0:e87aa4c49e95 127 }
phungductung 0:e87aa4c49e95 128
phungductung 0:e87aa4c49e95 129 pFunctionPointer_t add_common(void (*function)(void), IRQn_Type irq, bool front=false);
phungductung 0:e87aa4c49e95 130 bool must_replace_vector(IRQn_Type irq);
phungductung 0:e87aa4c49e95 131 int get_irq_index(IRQn_Type irq);
phungductung 0:e87aa4c49e95 132 void irq_helper();
phungductung 0:e87aa4c49e95 133 void add_helper(void (*function)(void), IRQn_Type irq, bool front=false);
phungductung 0:e87aa4c49e95 134 static void static_irq_helper();
phungductung 0:e87aa4c49e95 135
phungductung 0:e87aa4c49e95 136 CallChain* _chains[NVIC_NUM_VECTORS];
phungductung 0:e87aa4c49e95 137 static InterruptManager* _instance;
phungductung 0:e87aa4c49e95 138 };
phungductung 0:e87aa4c49e95 139
phungductung 0:e87aa4c49e95 140 } // namespace mbed
phungductung 0:e87aa4c49e95 141
phungductung 0:e87aa4c49e95 142 #endif
phungductung 0:e87aa4c49e95 143