mbed official / mbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

drivers/InterruptManager.h@134:ad3be0349dc5, 2017-01-16 (annotated)

Committer:
<>
Date:
Mon Jan 16 12:05:23 2017 +0000
Revision:
134:ad3be0349dc5
Parent:
128:9bcdf88f62b0
Child:
145:64910690c574
Release 134 of the mbed library



Ports for Upcoming Targets





Fixes and Changes



3488: Dev stm i2c v2 unitary functions https://github.com/ARMmbed/mbed-os/pull/3488

3492: Fix #3463 CAN read() return value https://github.com/ARMmbed/mbed-os/pull/3492

3503: [LPC15xx] Ensure that PWM=1 is resolved correctly https://github.com/ARMmbed/mbed-os/pull/3503

3504: [LPC15xx] CAN implementation improvements https://github.com/ARMmbed/mbed-os/pull/3504

3539: NUCLEO_F412ZG - Add support of TRNG peripheral https://github.com/ARMmbed/mbed-os/pull/3539

3540: STM: SPI: Initialize Rx in spi_master_write https://github.com/ARMmbed/mbed-os/pull/3540

3438: K64F: Add support for SERIAL ASYNCH API https://github.com/ARMmbed/mbed-os/pull/3438

3519: MCUXpresso: Fix ENET driver to enable interrupts after interrupt handler is set https://github.com/ARMmbed/mbed-os/pull/3519

3544: STM32L4 deepsleep improvement https://github.com/ARMmbed/mbed-os/pull/3544

3546: NUCLEO-F412ZG - Add CAN peripheral https://github.com/ARMmbed/mbed-os/pull/3546

3551: Fix I2C driver for RZ/A1H https://github.com/ARMmbed/mbed-os/pull/3551

3558: K64F UART Asynch API: Fix synchronization issue https://github.com/ARMmbed/mbed-os/pull/3558

3563: LPC4088 - Fix vector checksum https://github.com/ARMmbed/mbed-os/pull/3563

3567: Dev stm32 F0 v1.7.0 https://github.com/ARMmbed/mbed-os/pull/3567

3577: Fixes linking errors when building with debug profile https://github.com/ARMmbed/mbed-os/pull/3577

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 128:9bcdf88f62b0 1 /* mbed Microcontroller Library
<> 128:9bcdf88f62b0 2 * Copyright (c) 2006-2013 ARM Limited
<> 128:9bcdf88f62b0 3 *
<> 128:9bcdf88f62b0 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 128:9bcdf88f62b0 5 * you may not use this file except in compliance with the License.
<> 128:9bcdf88f62b0 6 * You may obtain a copy of the License at
<> 128:9bcdf88f62b0 7 *
<> 128:9bcdf88f62b0 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 128:9bcdf88f62b0 9 *
<> 128:9bcdf88f62b0 10 * Unless required by applicable law or agreed to in writing, software
<> 128:9bcdf88f62b0 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 128:9bcdf88f62b0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 128:9bcdf88f62b0 13 * See the License for the specific language governing permissions and
<> 128:9bcdf88f62b0 14 * limitations under the License.
<> 128:9bcdf88f62b0 15 */
<> 128:9bcdf88f62b0 16 #ifndef MBED_INTERRUPTMANAGER_H
<> 128:9bcdf88f62b0 17 #define MBED_INTERRUPTMANAGER_H
<> 128:9bcdf88f62b0 18
<> 128:9bcdf88f62b0 19 #include "cmsis.h"
<> 128:9bcdf88f62b0 20 #include "platform/CallChain.h"
<> 128:9bcdf88f62b0 21 #include "platform/PlatformMutex.h"
<> 128:9bcdf88f62b0 22 #include <string.h>
<> 128:9bcdf88f62b0 23
<> 128:9bcdf88f62b0 24 namespace mbed {
<> 128:9bcdf88f62b0 25 /** \addtogroup drivers */
<> 128:9bcdf88f62b0 26 /** @{*/
<> 128:9bcdf88f62b0 27
<> 128:9bcdf88f62b0 28 /** Use this singleton if you need to chain interrupt handlers.
<> 128:9bcdf88f62b0 29 *
<> 128:9bcdf88f62b0 30 * @Note Synchronization level: Thread safe
<> 128:9bcdf88f62b0 31 *
<> 128:9bcdf88f62b0 32 * Example (for LPC1768):
<> 128:9bcdf88f62b0 33 * @code
<> 128:9bcdf88f62b0 34 * #include "InterruptManager.h"
<> 128:9bcdf88f62b0 35 * #include "mbed.h"
<> 128:9bcdf88f62b0 36 *
<> 128:9bcdf88f62b0 37 * Ticker flipper;
<> 128:9bcdf88f62b0 38 * DigitalOut led1(LED1);
<> 128:9bcdf88f62b0 39 * DigitalOut led2(LED2);
<> 128:9bcdf88f62b0 40 *
<> 128:9bcdf88f62b0 41 * void flip(void) {
<> 128:9bcdf88f62b0 42 * led1 = !led1;
<> 128:9bcdf88f62b0 43 * }
<> 128:9bcdf88f62b0 44 *
<> 128:9bcdf88f62b0 45 * void handler(void) {
<> 128:9bcdf88f62b0 46 * led2 = !led1;
<> 128:9bcdf88f62b0 47 * }
<> 128:9bcdf88f62b0 48 *
<> 128:9bcdf88f62b0 49 * int main() {
<> 128:9bcdf88f62b0 50 * led1 = led2 = 0;
<> 128:9bcdf88f62b0 51 * flipper.attach(&flip, 1.0);
<> 128:9bcdf88f62b0 52 * InterruptManager::get()->add_handler(handler, TIMER3_IRQn);
<> 128:9bcdf88f62b0 53 * }
<> 128:9bcdf88f62b0 54 * @endcode
<> 128:9bcdf88f62b0 55 */
<> 128:9bcdf88f62b0 56 class InterruptManager {
<> 128:9bcdf88f62b0 57 public:
<> 128:9bcdf88f62b0 58 /** Return the only instance of this class
<> 128:9bcdf88f62b0 59 */
<> 128:9bcdf88f62b0 60 static InterruptManager* get();
<> 128:9bcdf88f62b0 61
<> 128:9bcdf88f62b0 62 /** Destroy the current instance of the interrupt manager
<> 128:9bcdf88f62b0 63 */
<> 128:9bcdf88f62b0 64 static void destroy();
<> 128:9bcdf88f62b0 65
<> 128:9bcdf88f62b0 66 /** Add a handler for an interrupt at the end of the handler list
<> 128:9bcdf88f62b0 67 *
<> 128:9bcdf88f62b0 68 * @param function the handler to add
<> 128:9bcdf88f62b0 69 * @param irq interrupt number
<> 128:9bcdf88f62b0 70 *
<> 128:9bcdf88f62b0 71 * @returns
<> 128:9bcdf88f62b0 72 * The function object created for 'function'
<> 128:9bcdf88f62b0 73 */
<> 128:9bcdf88f62b0 74 pFunctionPointer_t add_handler(void (*function)(void), IRQn_Type irq) {
<> 128:9bcdf88f62b0 75 // Underlying call is thread safe
<> 128:9bcdf88f62b0 76 return add_common(function, irq);
<> 128:9bcdf88f62b0 77 }
<> 128:9bcdf88f62b0 78
<> 128:9bcdf88f62b0 79 /** Add a handler for an interrupt at the beginning of the handler list
<> 128:9bcdf88f62b0 80 *
<> 128:9bcdf88f62b0 81 * @param function the handler to add
<> 128:9bcdf88f62b0 82 * @param irq interrupt number
<> 128:9bcdf88f62b0 83 *
<> 128:9bcdf88f62b0 84 * @returns
<> 128:9bcdf88f62b0 85 * The function object created for 'function'
<> 128:9bcdf88f62b0 86 */
<> 128:9bcdf88f62b0 87 pFunctionPointer_t add_handler_front(void (*function)(void), IRQn_Type irq) {
<> 128:9bcdf88f62b0 88 // Underlying call is thread safe
<> 128:9bcdf88f62b0 89 return add_common(function, irq, true);
<> 128:9bcdf88f62b0 90 }
<> 128:9bcdf88f62b0 91
<> 128:9bcdf88f62b0 92 /** Add a handler for an interrupt at the end of the handler list
<> 128:9bcdf88f62b0 93 *
<> 128:9bcdf88f62b0 94 * @param tptr pointer to the object that has the handler function
<> 128:9bcdf88f62b0 95 * @param mptr pointer to the actual handler function
<> 128:9bcdf88f62b0 96 * @param irq interrupt number
<> 128:9bcdf88f62b0 97 *
<> 128:9bcdf88f62b0 98 * @returns
<> 128:9bcdf88f62b0 99 * The function object created for 'tptr' and 'mptr'
<> 128:9bcdf88f62b0 100 */
<> 128:9bcdf88f62b0 101 template<typename T>
<> 128:9bcdf88f62b0 102 pFunctionPointer_t add_handler(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
<> 128:9bcdf88f62b0 103 // Underlying call is thread safe
<> 128:9bcdf88f62b0 104 return add_common(tptr, mptr, irq);
<> 128:9bcdf88f62b0 105 }
<> 128:9bcdf88f62b0 106
<> 128:9bcdf88f62b0 107 /** Add a handler for an interrupt at the beginning of the handler list
<> 128:9bcdf88f62b0 108 *
<> 128:9bcdf88f62b0 109 * @param tptr pointer to the object that has the handler function
<> 128:9bcdf88f62b0 110 * @param mptr pointer to the actual handler function
<> 128:9bcdf88f62b0 111 * @param irq interrupt number
<> 128:9bcdf88f62b0 112 *
<> 128:9bcdf88f62b0 113 * @returns
<> 128:9bcdf88f62b0 114 * The function object created for 'tptr' and 'mptr'
<> 128:9bcdf88f62b0 115 */
<> 128:9bcdf88f62b0 116 template<typename T>
<> 128:9bcdf88f62b0 117 pFunctionPointer_t add_handler_front(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
<> 128:9bcdf88f62b0 118 // Underlying call is thread safe
<> 128:9bcdf88f62b0 119 return add_common(tptr, mptr, irq, true);
<> 128:9bcdf88f62b0 120 }
<> 128:9bcdf88f62b0 121
<> 128:9bcdf88f62b0 122 /** Remove a handler from an interrupt
<> 128:9bcdf88f62b0 123 *
<> 128:9bcdf88f62b0 124 * @param handler the function object for the handler to remove
<> 128:9bcdf88f62b0 125 * @param irq the interrupt number
<> 128:9bcdf88f62b0 126 *
<> 128:9bcdf88f62b0 127 * @returns
<> 128:9bcdf88f62b0 128 * true if the handler was found and removed, false otherwise
<> 128:9bcdf88f62b0 129 */
<> 128:9bcdf88f62b0 130 bool remove_handler(pFunctionPointer_t handler, IRQn_Type irq);
<> 128:9bcdf88f62b0 131
<> 128:9bcdf88f62b0 132 private:
<> 128:9bcdf88f62b0 133 InterruptManager();
<> 128:9bcdf88f62b0 134 ~InterruptManager();
<> 128:9bcdf88f62b0 135
<> 128:9bcdf88f62b0 136 void lock();
<> 128:9bcdf88f62b0 137 void unlock();
<> 128:9bcdf88f62b0 138
<> 128:9bcdf88f62b0 139 // We declare the copy contructor and the assignment operator, but we don't
<> 128:9bcdf88f62b0 140 // implement them. This way, if someone tries to copy/assign our instance,
<> 128:9bcdf88f62b0 141 // he will get an error at compile time.
<> 128:9bcdf88f62b0 142 InterruptManager(const InterruptManager&);
<> 128:9bcdf88f62b0 143 InterruptManager& operator =(const InterruptManager&);
<> 128:9bcdf88f62b0 144
<> 128:9bcdf88f62b0 145 template<typename T>
<> 128:9bcdf88f62b0 146 pFunctionPointer_t add_common(T *tptr, void (T::*mptr)(void), IRQn_Type irq, bool front=false) {
<> 128:9bcdf88f62b0 147 _mutex.lock();
<> 128:9bcdf88f62b0 148 int irq_pos = get_irq_index(irq);
<> 128:9bcdf88f62b0 149 bool change = must_replace_vector(irq);
<> 128:9bcdf88f62b0 150
<> 128:9bcdf88f62b0 151 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(tptr, mptr) : _chains[irq_pos]->add(tptr, mptr);
<> 128:9bcdf88f62b0 152 if (change)
<> 128:9bcdf88f62b0 153 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
<> 128:9bcdf88f62b0 154 _mutex.unlock();
<> 128:9bcdf88f62b0 155 return pf;
<> 128:9bcdf88f62b0 156 }
<> 128:9bcdf88f62b0 157
<> 128:9bcdf88f62b0 158 pFunctionPointer_t add_common(void (*function)(void), IRQn_Type irq, bool front=false);
<> 128:9bcdf88f62b0 159 bool must_replace_vector(IRQn_Type irq);
<> 128:9bcdf88f62b0 160 int get_irq_index(IRQn_Type irq);
<> 128:9bcdf88f62b0 161 void irq_helper();
<> 128:9bcdf88f62b0 162 void add_helper(void (*function)(void), IRQn_Type irq, bool front=false);
<> 128:9bcdf88f62b0 163 static void static_irq_helper();
<> 128:9bcdf88f62b0 164
<> 128:9bcdf88f62b0 165 CallChain* _chains[NVIC_NUM_VECTORS];
<> 128:9bcdf88f62b0 166 static InterruptManager* _instance;
<> 128:9bcdf88f62b0 167 PlatformMutex _mutex;
<> 128:9bcdf88f62b0 168 };
<> 128:9bcdf88f62b0 169
<> 128:9bcdf88f62b0 170 } // namespace mbed
<> 128:9bcdf88f62b0 171
<> 128:9bcdf88f62b0 172 #endif
<> 128:9bcdf88f62b0 173
<> 128:9bcdf88f62b0 174
<> 128:9bcdf88f62b0 175 /** @}*/