Vipin Ranka / MGAS_GR_Peach

This is the final version of Mini Gateway for Automation and Security desgined for Renesas GR Peach Design Contest

Dependencies:   GR-PEACH_video GraphicsFramework HTTPServer R_BSP mbed-rpc mbed-rtos Socket lwip-eth lwip-sys lwip FATFileSystem

Fork of mbed-os-example-mbed5-blinky by mbed-os-examples

mbed-dev/drivers/InterruptManager.h@12:9a20164dcc47, 2017-01-11 (annotated)

Committer:
vipinranka
Date:
Wed Jan 11 11:41:30 2017 +0000
Revision:
12:9a20164dcc47
This is the final version MGAS Project for Renesas GR Peach Design Contest

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vipinranka 12:9a20164dcc47 1 /* mbed Microcontroller Library
vipinranka 12:9a20164dcc47 2 * Copyright (c) 2006-2013 ARM Limited
vipinranka 12:9a20164dcc47 3 *
vipinranka 12:9a20164dcc47 4 * Licensed under the Apache License, Version 2.0 (the "License");
vipinranka 12:9a20164dcc47 5 * you may not use this file except in compliance with the License.
vipinranka 12:9a20164dcc47 6 * You may obtain a copy of the License at
vipinranka 12:9a20164dcc47 7 *
vipinranka 12:9a20164dcc47 8 * http://www.apache.org/licenses/LICENSE-2.0
vipinranka 12:9a20164dcc47 9 *
vipinranka 12:9a20164dcc47 10 * Unless required by applicable law or agreed to in writing, software
vipinranka 12:9a20164dcc47 11 * distributed under the License is distributed on an "AS IS" BASIS,
vipinranka 12:9a20164dcc47 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vipinranka 12:9a20164dcc47 13 * See the License for the specific language governing permissions and
vipinranka 12:9a20164dcc47 14 * limitations under the License.
vipinranka 12:9a20164dcc47 15 */
vipinranka 12:9a20164dcc47 16 #ifndef MBED_INTERRUPTMANAGER_H
vipinranka 12:9a20164dcc47 17 #define MBED_INTERRUPTMANAGER_H
vipinranka 12:9a20164dcc47 18
vipinranka 12:9a20164dcc47 19 #include "cmsis.h"
vipinranka 12:9a20164dcc47 20 #include "platform/CallChain.h"
vipinranka 12:9a20164dcc47 21 #include "platform/PlatformMutex.h"
vipinranka 12:9a20164dcc47 22 #include <string.h>
vipinranka 12:9a20164dcc47 23
vipinranka 12:9a20164dcc47 24 namespace mbed {
vipinranka 12:9a20164dcc47 25 /** \addtogroup drivers */
vipinranka 12:9a20164dcc47 26 /** @{*/
vipinranka 12:9a20164dcc47 27
vipinranka 12:9a20164dcc47 28 /** Use this singleton if you need to chain interrupt handlers.
vipinranka 12:9a20164dcc47 29 *
vipinranka 12:9a20164dcc47 30 * @Note Synchronization level: Thread safe
vipinranka 12:9a20164dcc47 31 *
vipinranka 12:9a20164dcc47 32 * Example (for LPC1768):
vipinranka 12:9a20164dcc47 33 * @code
vipinranka 12:9a20164dcc47 34 * #include "InterruptManager.h"
vipinranka 12:9a20164dcc47 35 * #include "mbed.h"
vipinranka 12:9a20164dcc47 36 *
vipinranka 12:9a20164dcc47 37 * Ticker flipper;
vipinranka 12:9a20164dcc47 38 * DigitalOut led1(LED1);
vipinranka 12:9a20164dcc47 39 * DigitalOut led2(LED2);
vipinranka 12:9a20164dcc47 40 *
vipinranka 12:9a20164dcc47 41 * void flip(void) {
vipinranka 12:9a20164dcc47 42 * led1 = !led1;
vipinranka 12:9a20164dcc47 43 * }
vipinranka 12:9a20164dcc47 44 *
vipinranka 12:9a20164dcc47 45 * void handler(void) {
vipinranka 12:9a20164dcc47 46 * led2 = !led1;
vipinranka 12:9a20164dcc47 47 * }
vipinranka 12:9a20164dcc47 48 *
vipinranka 12:9a20164dcc47 49 * int main() {
vipinranka 12:9a20164dcc47 50 * led1 = led2 = 0;
vipinranka 12:9a20164dcc47 51 * flipper.attach(&flip, 1.0);
vipinranka 12:9a20164dcc47 52 * InterruptManager::get()->add_handler(handler, TIMER3_IRQn);
vipinranka 12:9a20164dcc47 53 * }
vipinranka 12:9a20164dcc47 54 * @endcode
vipinranka 12:9a20164dcc47 55 */
vipinranka 12:9a20164dcc47 56 class InterruptManager {
vipinranka 12:9a20164dcc47 57 public:
vipinranka 12:9a20164dcc47 58 /** Return the only instance of this class
vipinranka 12:9a20164dcc47 59 */
vipinranka 12:9a20164dcc47 60 static InterruptManager* get();
vipinranka 12:9a20164dcc47 61
vipinranka 12:9a20164dcc47 62 /** Destroy the current instance of the interrupt manager
vipinranka 12:9a20164dcc47 63 */
vipinranka 12:9a20164dcc47 64 static void destroy();
vipinranka 12:9a20164dcc47 65
vipinranka 12:9a20164dcc47 66 /** Add a handler for an interrupt at the end of the handler list
vipinranka 12:9a20164dcc47 67 *
vipinranka 12:9a20164dcc47 68 * @param function the handler to add
vipinranka 12:9a20164dcc47 69 * @param irq interrupt number
vipinranka 12:9a20164dcc47 70 *
vipinranka 12:9a20164dcc47 71 * @returns
vipinranka 12:9a20164dcc47 72 * The function object created for 'function'
vipinranka 12:9a20164dcc47 73 */
vipinranka 12:9a20164dcc47 74 pFunctionPointer_t add_handler(void (*function)(void), IRQn_Type irq) {
vipinranka 12:9a20164dcc47 75 // Underlying call is thread safe
vipinranka 12:9a20164dcc47 76 return add_common(function, irq);
vipinranka 12:9a20164dcc47 77 }
vipinranka 12:9a20164dcc47 78
vipinranka 12:9a20164dcc47 79 /** Add a handler for an interrupt at the beginning of the handler list
vipinranka 12:9a20164dcc47 80 *
vipinranka 12:9a20164dcc47 81 * @param function the handler to add
vipinranka 12:9a20164dcc47 82 * @param irq interrupt number
vipinranka 12:9a20164dcc47 83 *
vipinranka 12:9a20164dcc47 84 * @returns
vipinranka 12:9a20164dcc47 85 * The function object created for 'function'
vipinranka 12:9a20164dcc47 86 */
vipinranka 12:9a20164dcc47 87 pFunctionPointer_t add_handler_front(void (*function)(void), IRQn_Type irq) {
vipinranka 12:9a20164dcc47 88 // Underlying call is thread safe
vipinranka 12:9a20164dcc47 89 return add_common(function, irq, true);
vipinranka 12:9a20164dcc47 90 }
vipinranka 12:9a20164dcc47 91
vipinranka 12:9a20164dcc47 92 /** Add a handler for an interrupt at the end of the handler list
vipinranka 12:9a20164dcc47 93 *
vipinranka 12:9a20164dcc47 94 * @param tptr pointer to the object that has the handler function
vipinranka 12:9a20164dcc47 95 * @param mptr pointer to the actual handler function
vipinranka 12:9a20164dcc47 96 * @param irq interrupt number
vipinranka 12:9a20164dcc47 97 *
vipinranka 12:9a20164dcc47 98 * @returns
vipinranka 12:9a20164dcc47 99 * The function object created for 'tptr' and 'mptr'
vipinranka 12:9a20164dcc47 100 */
vipinranka 12:9a20164dcc47 101 template<typename T>
vipinranka 12:9a20164dcc47 102 pFunctionPointer_t add_handler(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
vipinranka 12:9a20164dcc47 103 // Underlying call is thread safe
vipinranka 12:9a20164dcc47 104 return add_common(tptr, mptr, irq);
vipinranka 12:9a20164dcc47 105 }
vipinranka 12:9a20164dcc47 106
vipinranka 12:9a20164dcc47 107 /** Add a handler for an interrupt at the beginning of the handler list
vipinranka 12:9a20164dcc47 108 *
vipinranka 12:9a20164dcc47 109 * @param tptr pointer to the object that has the handler function
vipinranka 12:9a20164dcc47 110 * @param mptr pointer to the actual handler function
vipinranka 12:9a20164dcc47 111 * @param irq interrupt number
vipinranka 12:9a20164dcc47 112 *
vipinranka 12:9a20164dcc47 113 * @returns
vipinranka 12:9a20164dcc47 114 * The function object created for 'tptr' and 'mptr'
vipinranka 12:9a20164dcc47 115 */
vipinranka 12:9a20164dcc47 116 template<typename T>
vipinranka 12:9a20164dcc47 117 pFunctionPointer_t add_handler_front(T* tptr, void (T::*mptr)(void), IRQn_Type irq) {
vipinranka 12:9a20164dcc47 118 // Underlying call is thread safe
vipinranka 12:9a20164dcc47 119 return add_common(tptr, mptr, irq, true);
vipinranka 12:9a20164dcc47 120 }
vipinranka 12:9a20164dcc47 121
vipinranka 12:9a20164dcc47 122 /** Remove a handler from an interrupt
vipinranka 12:9a20164dcc47 123 *
vipinranka 12:9a20164dcc47 124 * @param handler the function object for the handler to remove
vipinranka 12:9a20164dcc47 125 * @param irq the interrupt number
vipinranka 12:9a20164dcc47 126 *
vipinranka 12:9a20164dcc47 127 * @returns
vipinranka 12:9a20164dcc47 128 * true if the handler was found and removed, false otherwise
vipinranka 12:9a20164dcc47 129 */
vipinranka 12:9a20164dcc47 130 bool remove_handler(pFunctionPointer_t handler, IRQn_Type irq);
vipinranka 12:9a20164dcc47 131
vipinranka 12:9a20164dcc47 132 private:
vipinranka 12:9a20164dcc47 133 InterruptManager();
vipinranka 12:9a20164dcc47 134 ~InterruptManager();
vipinranka 12:9a20164dcc47 135
vipinranka 12:9a20164dcc47 136 void lock();
vipinranka 12:9a20164dcc47 137 void unlock();
vipinranka 12:9a20164dcc47 138
vipinranka 12:9a20164dcc47 139 // We declare the copy contructor and the assignment operator, but we don't
vipinranka 12:9a20164dcc47 140 // implement them. This way, if someone tries to copy/assign our instance,
vipinranka 12:9a20164dcc47 141 // he will get an error at compile time.
vipinranka 12:9a20164dcc47 142 InterruptManager(const InterruptManager&);
vipinranka 12:9a20164dcc47 143 InterruptManager& operator =(const InterruptManager&);
vipinranka 12:9a20164dcc47 144
vipinranka 12:9a20164dcc47 145 template<typename T>
vipinranka 12:9a20164dcc47 146 pFunctionPointer_t add_common(T *tptr, void (T::*mptr)(void), IRQn_Type irq, bool front=false) {
vipinranka 12:9a20164dcc47 147 _mutex.lock();
vipinranka 12:9a20164dcc47 148 int irq_pos = get_irq_index(irq);
vipinranka 12:9a20164dcc47 149 bool change = must_replace_vector(irq);
vipinranka 12:9a20164dcc47 150
vipinranka 12:9a20164dcc47 151 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(tptr, mptr) : _chains[irq_pos]->add(tptr, mptr);
vipinranka 12:9a20164dcc47 152 if (change)
vipinranka 12:9a20164dcc47 153 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
vipinranka 12:9a20164dcc47 154 _mutex.unlock();
vipinranka 12:9a20164dcc47 155 return pf;
vipinranka 12:9a20164dcc47 156 }
vipinranka 12:9a20164dcc47 157
vipinranka 12:9a20164dcc47 158 pFunctionPointer_t add_common(void (*function)(void), IRQn_Type irq, bool front=false);
vipinranka 12:9a20164dcc47 159 bool must_replace_vector(IRQn_Type irq);
vipinranka 12:9a20164dcc47 160 int get_irq_index(IRQn_Type irq);
vipinranka 12:9a20164dcc47 161 void irq_helper();
vipinranka 12:9a20164dcc47 162 void add_helper(void (*function)(void), IRQn_Type irq, bool front=false);
vipinranka 12:9a20164dcc47 163 static void static_irq_helper();
vipinranka 12:9a20164dcc47 164
vipinranka 12:9a20164dcc47 165 CallChain* _chains[NVIC_NUM_VECTORS];
vipinranka 12:9a20164dcc47 166 static InterruptManager* _instance;
vipinranka 12:9a20164dcc47 167 PlatformMutex _mutex;
vipinranka 12:9a20164dcc47 168 };
vipinranka 12:9a20164dcc47 169
vipinranka 12:9a20164dcc47 170 } // namespace mbed
vipinranka 12:9a20164dcc47 171
vipinranka 12:9a20164dcc47 172 #endif
vipinranka 12:9a20164dcc47 173
vipinranka 12:9a20164dcc47 174
vipinranka 12:9a20164dcc47 175 /** @}*/