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InterruptManager.h@122:f9eeca106725, 2016-07-07 (annotated)

Committer:
Kojto
Date:
Thu Jul 07 14:34:11 2016 +0100
Revision:
122:f9eeca106725
Parent:
85:024bf7f99721
Child:
123:b0220dba8be7
Release 122 of the mbed library



Changes:

- new targets - Nucleo L432KC, Beetle, Nucleo F446ZE, Nucleo L011K4

- Thread safety addition - mbed API should contain a statement about thread safety

- critical section API addition

- CAS API (core_util_atomic_incr/decr)

- DEVICE_ are generated from targets.json file, device.h deprecated

- Callback replaces FunctionPointer to provide std like interface

- mbed HAL API docs improvements

- toolchain - prexif attributes with MBED_

            - add new attributes - packed, weak, forcedinline, align

- target.json - contains targets definitions

- ST - L1XX - Cube update to 1.5

     - SPI clock selection fix (clock from APB domain)

     - F7 - Cube update v1.4.0

     - L0 -  baudrate init fix

     - L1 - Cube update v1.5

     - F3 - baudrate init fix, 3 targets CAN support

     - F4 - Cube update v1.12.0, 3 targets CAN support

     - L4XX - Cube update v1.5.1

     - F0 - update Cube to v1.5.0

     - L4 - 2 targets (L476RG/VG) CAN support

- NXP - pwm clock fix for KSDK2 MCU

      - LPC2368 - remove ARM toolchain support - due to regression

      - KSDK2 - fix SPI , I2C address and repeat start

- Silabs - some fixes backported from mbed 3

- Renesas - RZ_A1H - SystemCoreClockUpdate addition

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 66:9c8f0e3462fb 1 #ifndef MBED_INTERRUPTMANAGER_H
bogdanm 66:9c8f0e3462fb 2 #define MBED_INTERRUPTMANAGER_H
bogdanm 66:9c8f0e3462fb 3
Kojto 122:f9eeca106725 4 #include "platform.h"
Kojto 122:f9eeca106725 5
bogdanm 66:9c8f0e3462fb 6 #include "cmsis.h"
bogdanm 66:9c8f0e3462fb 7 #include "CallChain.h"
bogdanm 66:9c8f0e3462fb 8 #include <string.h>
bogdanm 66:9c8f0e3462fb 9
bogdanm 66:9c8f0e3462fb 10 namespace mbed {
bogdanm 66:9c8f0e3462fb 11
bogdanm 66:9c8f0e3462fb 12 /** Use this singleton if you need to chain interrupt handlers.
bogdanm 66:9c8f0e3462fb 13 *
Kojto 122:f9eeca106725 14 * @Note Synchronization level: Thread safe
Kojto 122:f9eeca106725 15 *
bogdanm 66:9c8f0e3462fb 16 * Example (for LPC1768):
bogdanm 66:9c8f0e3462fb 17 * @code
bogdanm 66:9c8f0e3462fb 18 * #include "InterruptManager.h"
bogdanm 66:9c8f0e3462fb 19 * #include "mbed.h"
bogdanm 85:024bf7f99721 20 *
bogdanm 66:9c8f0e3462fb 21 * Ticker flipper;
bogdanm 66:9c8f0e3462fb 22 * DigitalOut led1(LED1);
bogdanm 66:9c8f0e3462fb 23 * DigitalOut led2(LED2);
bogdanm 85:024bf7f99721 24 *
bogdanm 66:9c8f0e3462fb 25 * void flip(void) {
bogdanm 66:9c8f0e3462fb 26 * led1 = !led1;
bogdanm 66:9c8f0e3462fb 27 * }
bogdanm 85:024bf7f99721 28 *
bogdanm 66:9c8f0e3462fb 29 * void handler(void) {
bogdanm 66:9c8f0e3462fb 30 * led2 = !led1;
bogdanm 66:9c8f0e3462fb 31 * }
bogdanm 85:024bf7f99721 32 *
bogdanm 66:9c8f0e3462fb 33 * int main() {
bogdanm 66:9c8f0e3462fb 34 * led1 = led2 = 0;
bogdanm 66:9c8f0e3462fb 35 * flipper.attach(&flip, 1.0);
bogdanm 66:9c8f0e3462fb 36 * InterruptManager::get()->add_handler(handler, TIMER3_IRQn);
bogdanm 66:9c8f0e3462fb 37 * }
bogdanm 66:9c8f0e3462fb 38 * @endcode
bogdanm 66:9c8f0e3462fb 39 */
bogdanm 66:9c8f0e3462fb 40 class InterruptManager {
bogdanm 66:9c8f0e3462fb 41 public:
bogdanm 66:9c8f0e3462fb 42 /** Return the only instance of this class
bogdanm 66:9c8f0e3462fb 43 */
bogdanm 66:9c8f0e3462fb 44 static InterruptManager* get();
bogdanm 66:9c8f0e3462fb 45
bogdanm 66:9c8f0e3462fb 46 /** Destroy the current instance of the interrupt manager
bogdanm 66:9c8f0e3462fb 47 */
bogdanm 66:9c8f0e3462fb 48 static void destroy();
bogdanm 85:024bf7f99721 49
bogdanm 66:9c8f0e3462fb 50 /** Add a handler for an interrupt at the end of the handler list
bogdanm 66:9c8f0e3462fb 51 *
bogdanm 66:9c8f0e3462fb 52 * @param function the handler to add
bogdanm 66:9c8f0e3462fb 53 * @param irq interrupt number
bogdanm 66:9c8f0e3462fb 54 *
bogdanm 66:9c8f0e3462fb 55 * @returns
bogdanm 66:9c8f0e3462fb 56 * The function object created for 'function'
bogdanm 66:9c8f0e3462fb 57 */
bogdanm 66:9c8f0e3462fb 58 pFunctionPointer_t add_handler(void (*function)(void), IRQn_Type irq) {
Kojto 122:f9eeca106725 59 // Underlying call is thread safe
bogdanm 66:9c8f0e3462fb 60 return add_common(function, irq);
bogdanm 66:9c8f0e3462fb 61 }
bogdanm 66:9c8f0e3462fb 62
bogdanm 66:9c8f0e3462fb 63 /** Add a handler for an interrupt at the beginning of the handler list
bogdanm 66:9c8f0e3462fb 64 *
bogdanm 66:9c8f0e3462fb 65 * @param function the handler to add
bogdanm 66:9c8f0e3462fb 66 * @param irq interrupt number
bogdanm 66:9c8f0e3462fb 67 *
bogdanm 66:9c8f0e3462fb 68 * @returns
bogdanm 66:9c8f0e3462fb 69 * The function object created for 'function'
bogdanm 66:9c8f0e3462fb 70 */
bogdanm 66:9c8f0e3462fb 71 pFunctionPointer_t add_handler_front(void (*function)(void), IRQn_Type irq) {
Kojto 122:f9eeca106725 72 // Underlying call is thread safe
bogdanm 66:9c8f0e3462fb 73 return add_common(function, irq, true);
bogdanm 66:9c8f0e3462fb 74 }
bogdanm 66:9c8f0e3462fb 75
bogdanm 66:9c8f0e3462fb 76 /** Add a handler for an interrupt at the end of the handler list
bogdanm 66:9c8f0e3462fb 77 *
bogdanm 66:9c8f0e3462fb 78 * @param tptr pointer to the object that has the handler function
bogdanm 66:9c8f0e3462fb 79 * @param mptr pointer to the actual handler function
bogdanm 66:9c8f0e3462fb 80 * @param irq interrupt number
bogdanm 66:9c8f0e3462fb 81 *
bogdanm 66:9c8f0e3462fb 82 * @returns
bogdanm 66:9c8f0e3462fb 83 * The function object created for 'tptr' and 'mptr'
bogdanm 66:9c8f0e3462fb 84 */
bogdanm 66:9c8f0e3462fb 85 template<typename T>
bogdanm 66:9c8f0e3462fb 86 pFunctionPointer_t add_handler(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
Kojto 122:f9eeca106725 87 // Underlying call is thread safe
bogdanm 66:9c8f0e3462fb 88 return add_common(tptr, mptr, irq);
bogdanm 66:9c8f0e3462fb 89 }
bogdanm 66:9c8f0e3462fb 90
bogdanm 66:9c8f0e3462fb 91 /** Add a handler for an interrupt at the beginning of the handler list
bogdanm 66:9c8f0e3462fb 92 *
bogdanm 66:9c8f0e3462fb 93 * @param tptr pointer to the object that has the handler function
bogdanm 66:9c8f0e3462fb 94 * @param mptr pointer to the actual handler function
bogdanm 66:9c8f0e3462fb 95 * @param irq interrupt number
bogdanm 66:9c8f0e3462fb 96 *
bogdanm 66:9c8f0e3462fb 97 * @returns
bogdanm 66:9c8f0e3462fb 98 * The function object created for 'tptr' and 'mptr'
bogdanm 66:9c8f0e3462fb 99 */
bogdanm 66:9c8f0e3462fb 100 template<typename T>
bogdanm 66:9c8f0e3462fb 101 pFunctionPointer_t add_handler_front(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
Kojto 122:f9eeca106725 102 // Underlying call is thread safe
bogdanm 66:9c8f0e3462fb 103 return add_common(tptr, mptr, irq, true);
bogdanm 66:9c8f0e3462fb 104 }
bogdanm 66:9c8f0e3462fb 105
bogdanm 66:9c8f0e3462fb 106 /** Remove a handler from an interrupt
bogdanm 66:9c8f0e3462fb 107 *
bogdanm 66:9c8f0e3462fb 108 * @param handler the function object for the handler to remove
bogdanm 66:9c8f0e3462fb 109 * @param irq the interrupt number
bogdanm 66:9c8f0e3462fb 110 *
bogdanm 66:9c8f0e3462fb 111 * @returns
bogdanm 66:9c8f0e3462fb 112 * true if the handler was found and removed, false otherwise
bogdanm 66:9c8f0e3462fb 113 */
bogdanm 66:9c8f0e3462fb 114 bool remove_handler(pFunctionPointer_t handler, IRQn_Type irq);
bogdanm 66:9c8f0e3462fb 115
bogdanm 66:9c8f0e3462fb 116 private:
bogdanm 66:9c8f0e3462fb 117 InterruptManager();
bogdanm 66:9c8f0e3462fb 118 ~InterruptManager();
bogdanm 66:9c8f0e3462fb 119
Kojto 122:f9eeca106725 120 void lock();
Kojto 122:f9eeca106725 121 void unlock();
Kojto 122:f9eeca106725 122
bogdanm 66:9c8f0e3462fb 123 // We declare the copy contructor and the assignment operator, but we don't
bogdanm 66:9c8f0e3462fb 124 // implement them. This way, if someone tries to copy/assign our instance,
bogdanm 66:9c8f0e3462fb 125 // he will get an error at compile time.
bogdanm 66:9c8f0e3462fb 126 InterruptManager(const InterruptManager&);
bogdanm 66:9c8f0e3462fb 127 InterruptManager& operator =(const InterruptManager&);
bogdanm 66:9c8f0e3462fb 128
bogdanm 66:9c8f0e3462fb 129 template<typename T>
bogdanm 66:9c8f0e3462fb 130 pFunctionPointer_t add_common(T *tptr, void (T::*mptr)(void), IRQn_Type irq, bool front=false) {
Kojto 122:f9eeca106725 131 _mutex.lock();
bogdanm 66:9c8f0e3462fb 132 int irq_pos = get_irq_index(irq);
bogdanm 66:9c8f0e3462fb 133 bool change = must_replace_vector(irq);
bogdanm 66:9c8f0e3462fb 134
bogdanm 66:9c8f0e3462fb 135 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(tptr, mptr) : _chains[irq_pos]->add(tptr, mptr);
bogdanm 66:9c8f0e3462fb 136 if (change)
bogdanm 66:9c8f0e3462fb 137 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
Kojto 122:f9eeca106725 138 _mutex.unlock();
bogdanm 66:9c8f0e3462fb 139 return pf;
bogdanm 66:9c8f0e3462fb 140 }
bogdanm 66:9c8f0e3462fb 141
bogdanm 66:9c8f0e3462fb 142 pFunctionPointer_t add_common(void (*function)(void), IRQn_Type irq, bool front=false);
bogdanm 66:9c8f0e3462fb 143 bool must_replace_vector(IRQn_Type irq);
bogdanm 66:9c8f0e3462fb 144 int get_irq_index(IRQn_Type irq);
bogdanm 66:9c8f0e3462fb 145 void irq_helper();
bogdanm 66:9c8f0e3462fb 146 void add_helper(void (*function)(void), IRQn_Type irq, bool front=false);
bogdanm 66:9c8f0e3462fb 147 static void static_irq_helper();
bogdanm 66:9c8f0e3462fb 148
bogdanm 66:9c8f0e3462fb 149 CallChain* _chains[NVIC_NUM_VECTORS];
bogdanm 66:9c8f0e3462fb 150 static InterruptManager* _instance;
Kojto 122:f9eeca106725 151 PlatformMutex _mutex;
bogdanm 66:9c8f0e3462fb 152 };
bogdanm 66:9c8f0e3462fb 153
bogdanm 66:9c8f0e3462fb 154 } // namespace mbed
bogdanm 66:9c8f0e3462fb 155
bogdanm 66:9c8f0e3462fb 156 #endif
bogdanm 66:9c8f0e3462fb 157