Lancaster University / mbed-lite-test

test

InterruptManager.h@1:a7c51b5e0534, 2016-04-07 (annotated)

Committer:
jamesadevine
Date:
Thu Apr 07 17:50:29 2016 +0000
Revision:
1:a7c51b5e0534
Parent:
0:e1a608bb55e8 
Added correct nrf51.h ; Added scatter file.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jamesadevine 0:e1a608bb55e8 1 #ifndef MBED_INTERRUPTMANAGER_H
jamesadevine 0:e1a608bb55e8 2 #define MBED_INTERRUPTMANAGER_H
jamesadevine 0:e1a608bb55e8 3
jamesadevine 0:e1a608bb55e8 4 #include "cmsis.h"
jamesadevine 0:e1a608bb55e8 5 #include "CallChain.h"
jamesadevine 0:e1a608bb55e8 6 #include <string.h>
jamesadevine 0:e1a608bb55e8 7
jamesadevine 0:e1a608bb55e8 8 namespace mbed {
jamesadevine 0:e1a608bb55e8 9
jamesadevine 0:e1a608bb55e8 10 /** Use this singleton if you need to chain interrupt handlers.
jamesadevine 0:e1a608bb55e8 11 *
jamesadevine 0:e1a608bb55e8 12 * Example (for LPC1768):
jamesadevine 0:e1a608bb55e8 13 * @code
jamesadevine 0:e1a608bb55e8 14 * #include "InterruptManager.h"
jamesadevine 0:e1a608bb55e8 15 * #include "mbed.h"
jamesadevine 0:e1a608bb55e8 16 *
jamesadevine 0:e1a608bb55e8 17 * Ticker flipper;
jamesadevine 0:e1a608bb55e8 18 * DigitalOut led1(LED1);
jamesadevine 0:e1a608bb55e8 19 * DigitalOut led2(LED2);
jamesadevine 0:e1a608bb55e8 20 *
jamesadevine 0:e1a608bb55e8 21 * void flip(void) {
jamesadevine 0:e1a608bb55e8 22 * led1 = !led1;
jamesadevine 0:e1a608bb55e8 23 * }
jamesadevine 0:e1a608bb55e8 24 *
jamesadevine 0:e1a608bb55e8 25 * void handler(void) {
jamesadevine 0:e1a608bb55e8 26 * led2 = !led1;
jamesadevine 0:e1a608bb55e8 27 * }
jamesadevine 0:e1a608bb55e8 28 *
jamesadevine 0:e1a608bb55e8 29 * int main() {
jamesadevine 0:e1a608bb55e8 30 * led1 = led2 = 0;
jamesadevine 0:e1a608bb55e8 31 * flipper.attach(&flip, 1.0);
jamesadevine 0:e1a608bb55e8 32 * InterruptManager::get()->add_handler(handler, TIMER3_IRQn);
jamesadevine 0:e1a608bb55e8 33 * }
jamesadevine 0:e1a608bb55e8 34 * @endcode
jamesadevine 0:e1a608bb55e8 35 */
jamesadevine 0:e1a608bb55e8 36 class InterruptManager {
jamesadevine 0:e1a608bb55e8 37 public:
jamesadevine 0:e1a608bb55e8 38 /** Return the only instance of this class
jamesadevine 0:e1a608bb55e8 39 */
jamesadevine 0:e1a608bb55e8 40 static InterruptManager* get();
jamesadevine 0:e1a608bb55e8 41
jamesadevine 0:e1a608bb55e8 42 /** Destroy the current instance of the interrupt manager
jamesadevine 0:e1a608bb55e8 43 */
jamesadevine 0:e1a608bb55e8 44 static void destroy();
jamesadevine 0:e1a608bb55e8 45
jamesadevine 0:e1a608bb55e8 46 /** Add a handler for an interrupt at the end of the handler list
jamesadevine 0:e1a608bb55e8 47 *
jamesadevine 0:e1a608bb55e8 48 * @param function the handler to add
jamesadevine 0:e1a608bb55e8 49 * @param irq interrupt number
jamesadevine 0:e1a608bb55e8 50 *
jamesadevine 0:e1a608bb55e8 51 * @returns
jamesadevine 0:e1a608bb55e8 52 * The function object created for 'function'
jamesadevine 0:e1a608bb55e8 53 */
jamesadevine 0:e1a608bb55e8 54 pFunctionPointer_t add_handler(void (*function)(void), IRQn_Type irq) {
jamesadevine 0:e1a608bb55e8 55 return add_common(function, irq);
jamesadevine 0:e1a608bb55e8 56 }
jamesadevine 0:e1a608bb55e8 57
jamesadevine 0:e1a608bb55e8 58 /** Add a handler for an interrupt at the beginning of the handler list
jamesadevine 0:e1a608bb55e8 59 *
jamesadevine 0:e1a608bb55e8 60 * @param function the handler to add
jamesadevine 0:e1a608bb55e8 61 * @param irq interrupt number
jamesadevine 0:e1a608bb55e8 62 *
jamesadevine 0:e1a608bb55e8 63 * @returns
jamesadevine 0:e1a608bb55e8 64 * The function object created for 'function'
jamesadevine 0:e1a608bb55e8 65 */
jamesadevine 0:e1a608bb55e8 66 pFunctionPointer_t add_handler_front(void (*function)(void), IRQn_Type irq) {
jamesadevine 0:e1a608bb55e8 67 return add_common(function, irq, true);
jamesadevine 0:e1a608bb55e8 68 }
jamesadevine 0:e1a608bb55e8 69
jamesadevine 0:e1a608bb55e8 70 /** Add a handler for an interrupt at the end of the handler list
jamesadevine 0:e1a608bb55e8 71 *
jamesadevine 0:e1a608bb55e8 72 * @param tptr pointer to the object that has the handler function
jamesadevine 0:e1a608bb55e8 73 * @param mptr pointer to the actual handler function
jamesadevine 0:e1a608bb55e8 74 * @param irq interrupt number
jamesadevine 0:e1a608bb55e8 75 *
jamesadevine 0:e1a608bb55e8 76 * @returns
jamesadevine 0:e1a608bb55e8 77 * The function object created for 'tptr' and 'mptr'
jamesadevine 0:e1a608bb55e8 78 */
jamesadevine 0:e1a608bb55e8 79 template<typename T>
jamesadevine 0:e1a608bb55e8 80 pFunctionPointer_t add_handler(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
jamesadevine 0:e1a608bb55e8 81 return add_common(tptr, mptr, irq);
jamesadevine 0:e1a608bb55e8 82 }
jamesadevine 0:e1a608bb55e8 83
jamesadevine 0:e1a608bb55e8 84 /** Add a handler for an interrupt at the beginning of the handler list
jamesadevine 0:e1a608bb55e8 85 *
jamesadevine 0:e1a608bb55e8 86 * @param tptr pointer to the object that has the handler function
jamesadevine 0:e1a608bb55e8 87 * @param mptr pointer to the actual handler function
jamesadevine 0:e1a608bb55e8 88 * @param irq interrupt number
jamesadevine 0:e1a608bb55e8 89 *
jamesadevine 0:e1a608bb55e8 90 * @returns
jamesadevine 0:e1a608bb55e8 91 * The function object created for 'tptr' and 'mptr'
jamesadevine 0:e1a608bb55e8 92 */
jamesadevine 0:e1a608bb55e8 93 template<typename T>
jamesadevine 0:e1a608bb55e8 94 pFunctionPointer_t add_handler_front(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
jamesadevine 0:e1a608bb55e8 95 return add_common(tptr, mptr, irq, true);
jamesadevine 0:e1a608bb55e8 96 }
jamesadevine 0:e1a608bb55e8 97
jamesadevine 0:e1a608bb55e8 98 /** Remove a handler from an interrupt
jamesadevine 0:e1a608bb55e8 99 *
jamesadevine 0:e1a608bb55e8 100 * @param handler the function object for the handler to remove
jamesadevine 0:e1a608bb55e8 101 * @param irq the interrupt number
jamesadevine 0:e1a608bb55e8 102 *
jamesadevine 0:e1a608bb55e8 103 * @returns
jamesadevine 0:e1a608bb55e8 104 * true if the handler was found and removed, false otherwise
jamesadevine 0:e1a608bb55e8 105 */
jamesadevine 0:e1a608bb55e8 106 bool remove_handler(pFunctionPointer_t handler, IRQn_Type irq);
jamesadevine 0:e1a608bb55e8 107
jamesadevine 0:e1a608bb55e8 108 private:
jamesadevine 0:e1a608bb55e8 109 InterruptManager();
jamesadevine 0:e1a608bb55e8 110 ~InterruptManager();
jamesadevine 0:e1a608bb55e8 111
jamesadevine 0:e1a608bb55e8 112 // We declare the copy contructor and the assignment operator, but we don't
jamesadevine 0:e1a608bb55e8 113 // implement them. This way, if someone tries to copy/assign our instance,
jamesadevine 0:e1a608bb55e8 114 // he will get an error at compile time.
jamesadevine 0:e1a608bb55e8 115 InterruptManager(const InterruptManager&);
jamesadevine 0:e1a608bb55e8 116 InterruptManager& operator =(const InterruptManager&);
jamesadevine 0:e1a608bb55e8 117
jamesadevine 0:e1a608bb55e8 118 template<typename T>
jamesadevine 0:e1a608bb55e8 119 pFunctionPointer_t add_common(T *tptr, void (T::*mptr)(void), IRQn_Type irq, bool front=false) {
jamesadevine 0:e1a608bb55e8 120 int irq_pos = get_irq_index(irq);
jamesadevine 0:e1a608bb55e8 121 bool change = must_replace_vector(irq);
jamesadevine 0:e1a608bb55e8 122
jamesadevine 0:e1a608bb55e8 123 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(tptr, mptr) : _chains[irq_pos]->add(tptr, mptr);
jamesadevine 0:e1a608bb55e8 124 if (change)
jamesadevine 0:e1a608bb55e8 125 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
jamesadevine 0:e1a608bb55e8 126 return pf;
jamesadevine 0:e1a608bb55e8 127 }
jamesadevine 0:e1a608bb55e8 128
jamesadevine 0:e1a608bb55e8 129 pFunctionPointer_t add_common(void (*function)(void), IRQn_Type irq, bool front=false);
jamesadevine 0:e1a608bb55e8 130 bool must_replace_vector(IRQn_Type irq);
jamesadevine 0:e1a608bb55e8 131 int get_irq_index(IRQn_Type irq);
jamesadevine 0:e1a608bb55e8 132 void irq_helper();
jamesadevine 0:e1a608bb55e8 133 void add_helper(void (*function)(void), IRQn_Type irq, bool front=false);
jamesadevine 0:e1a608bb55e8 134 static void static_irq_helper();
jamesadevine 0:e1a608bb55e8 135
jamesadevine 0:e1a608bb55e8 136 CallChain* _chains[NVIC_NUM_VECTORS];
jamesadevine 0:e1a608bb55e8 137 static InterruptManager* _instance;
jamesadevine 0:e1a608bb55e8 138 };
jamesadevine 0:e1a608bb55e8 139
jamesadevine 0:e1a608bb55e8 140 } // namespace mbed
jamesadevine 0:e1a608bb55e8 141
jamesadevine 0:e1a608bb55e8 142 #endif
jamesadevine 0:e1a608bb55e8 143