不韋 呂 / F746_Spectrogram

Realtime spectrogram for DISCO-F746NG. On-board MEMS microphone is used for input sound signal. リアルタイムスペクトログラム．入力：MEMSマイク

Dependencies:   F746_GUI F746_SAI_IO UIT_FFT_Real

mbed_src_STM32F7/common/InterruptManager.cpp@6:b3885567877c, 2017-04-10 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Apr 10 13:43:07 2017 +0000
Revision:
6:b3885567877c
Parent:
4:c1beacfc42c7 
7

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 4:c1beacfc42c7 1 #include "cmsis.h"
MikamiUitOpen 4:c1beacfc42c7 2 #if defined(NVIC_NUM_VECTORS)
MikamiUitOpen 4:c1beacfc42c7 3
MikamiUitOpen 4:c1beacfc42c7 4 #include "InterruptManager.h"
MikamiUitOpen 4:c1beacfc42c7 5 #include <string.h>
MikamiUitOpen 4:c1beacfc42c7 6
MikamiUitOpen 4:c1beacfc42c7 7 #define CHAIN_INITIAL_SIZE 4
MikamiUitOpen 4:c1beacfc42c7 8
MikamiUitOpen 4:c1beacfc42c7 9 namespace mbed {
MikamiUitOpen 4:c1beacfc42c7 10
MikamiUitOpen 4:c1beacfc42c7 11 typedef void (*pvoidf)(void);
MikamiUitOpen 4:c1beacfc42c7 12
MikamiUitOpen 4:c1beacfc42c7 13 InterruptManager* InterruptManager::_instance = (InterruptManager*)NULL;
MikamiUitOpen 4:c1beacfc42c7 14
MikamiUitOpen 4:c1beacfc42c7 15 InterruptManager* InterruptManager::get() {
MikamiUitOpen 4:c1beacfc42c7 16 if (NULL == _instance)
MikamiUitOpen 4:c1beacfc42c7 17 _instance = new InterruptManager();
MikamiUitOpen 4:c1beacfc42c7 18 return _instance;
MikamiUitOpen 4:c1beacfc42c7 19 }
MikamiUitOpen 4:c1beacfc42c7 20
MikamiUitOpen 4:c1beacfc42c7 21 InterruptManager::InterruptManager() {
MikamiUitOpen 4:c1beacfc42c7 22 memset(_chains, 0, NVIC_NUM_VECTORS * sizeof(CallChain*));
MikamiUitOpen 4:c1beacfc42c7 23 }
MikamiUitOpen 4:c1beacfc42c7 24
MikamiUitOpen 4:c1beacfc42c7 25 void InterruptManager::destroy() {
MikamiUitOpen 4:c1beacfc42c7 26 // Not a good idea to call this unless NO interrupt at all
MikamiUitOpen 4:c1beacfc42c7 27 // is under the control of the handler; otherwise, a system crash
MikamiUitOpen 4:c1beacfc42c7 28 // is very likely to occur
MikamiUitOpen 4:c1beacfc42c7 29 if (NULL != _instance) {
MikamiUitOpen 4:c1beacfc42c7 30 delete _instance;
MikamiUitOpen 4:c1beacfc42c7 31 _instance = (InterruptManager*)NULL;
MikamiUitOpen 4:c1beacfc42c7 32 }
MikamiUitOpen 4:c1beacfc42c7 33 }
MikamiUitOpen 4:c1beacfc42c7 34
MikamiUitOpen 4:c1beacfc42c7 35 InterruptManager::~InterruptManager() {
MikamiUitOpen 4:c1beacfc42c7 36 for(int i = 0; i < NVIC_NUM_VECTORS; i++)
MikamiUitOpen 4:c1beacfc42c7 37 if (NULL != _chains[i])
MikamiUitOpen 4:c1beacfc42c7 38 delete _chains[i];
MikamiUitOpen 4:c1beacfc42c7 39 }
MikamiUitOpen 4:c1beacfc42c7 40
MikamiUitOpen 4:c1beacfc42c7 41 bool InterruptManager::must_replace_vector(IRQn_Type irq) {
MikamiUitOpen 4:c1beacfc42c7 42 int irq_pos = get_irq_index(irq);
MikamiUitOpen 4:c1beacfc42c7 43
MikamiUitOpen 4:c1beacfc42c7 44 if (NULL == _chains[irq_pos]) {
MikamiUitOpen 4:c1beacfc42c7 45 _chains[irq_pos] = new CallChain(CHAIN_INITIAL_SIZE);
MikamiUitOpen 4:c1beacfc42c7 46 _chains[irq_pos]->add((pvoidf)NVIC_GetVector(irq));
MikamiUitOpen 4:c1beacfc42c7 47 return true;
MikamiUitOpen 4:c1beacfc42c7 48 }
MikamiUitOpen 4:c1beacfc42c7 49 return false;
MikamiUitOpen 4:c1beacfc42c7 50 }
MikamiUitOpen 4:c1beacfc42c7 51
MikamiUitOpen 4:c1beacfc42c7 52 pFunctionPointer_t InterruptManager::add_common(void (*function)(void), IRQn_Type irq, bool front) {
MikamiUitOpen 4:c1beacfc42c7 53 int irq_pos = get_irq_index(irq);
MikamiUitOpen 4:c1beacfc42c7 54 bool change = must_replace_vector(irq);
MikamiUitOpen 4:c1beacfc42c7 55
MikamiUitOpen 4:c1beacfc42c7 56 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(function) : _chains[irq_pos]->add(function);
MikamiUitOpen 4:c1beacfc42c7 57 if (change)
MikamiUitOpen 4:c1beacfc42c7 58 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
MikamiUitOpen 4:c1beacfc42c7 59 return pf;
MikamiUitOpen 4:c1beacfc42c7 60 }
MikamiUitOpen 4:c1beacfc42c7 61
MikamiUitOpen 4:c1beacfc42c7 62 bool InterruptManager::remove_handler(pFunctionPointer_t handler, IRQn_Type irq) {
MikamiUitOpen 4:c1beacfc42c7 63 int irq_pos = get_irq_index(irq);
MikamiUitOpen 4:c1beacfc42c7 64
MikamiUitOpen 4:c1beacfc42c7 65 if (NULL == _chains[irq_pos])
MikamiUitOpen 4:c1beacfc42c7 66 return false;
MikamiUitOpen 4:c1beacfc42c7 67 if (!_chains[irq_pos]->remove(handler))
MikamiUitOpen 4:c1beacfc42c7 68 return false;
MikamiUitOpen 4:c1beacfc42c7 69 // If there's a single function left in the chain, swith the interrupt vector
MikamiUitOpen 4:c1beacfc42c7 70 // to call that function directly. This way we save both time and space.
MikamiUitOpen 4:c1beacfc42c7 71 if (_chains[irq_pos]->size() == 1 && NULL != _chains[irq_pos]->get(0)->get_function()) {
MikamiUitOpen 4:c1beacfc42c7 72 NVIC_SetVector(irq, (uint32_t)_chains[irq_pos]->get(0)->get_function());
MikamiUitOpen 4:c1beacfc42c7 73 delete _chains[irq_pos];
MikamiUitOpen 4:c1beacfc42c7 74 _chains[irq_pos] = (CallChain*) NULL;
MikamiUitOpen 4:c1beacfc42c7 75 }
MikamiUitOpen 4:c1beacfc42c7 76 return true;
MikamiUitOpen 4:c1beacfc42c7 77 }
MikamiUitOpen 4:c1beacfc42c7 78
MikamiUitOpen 4:c1beacfc42c7 79 void InterruptManager::irq_helper() {
MikamiUitOpen 4:c1beacfc42c7 80 _chains[__get_IPSR()]->call();
MikamiUitOpen 4:c1beacfc42c7 81 }
MikamiUitOpen 4:c1beacfc42c7 82
MikamiUitOpen 4:c1beacfc42c7 83 int InterruptManager::get_irq_index(IRQn_Type irq) {
MikamiUitOpen 4:c1beacfc42c7 84 return (int)irq + NVIC_USER_IRQ_OFFSET;
MikamiUitOpen 4:c1beacfc42c7 85 }
MikamiUitOpen 4:c1beacfc42c7 86
MikamiUitOpen 4:c1beacfc42c7 87 void InterruptManager::static_irq_helper() {
MikamiUitOpen 4:c1beacfc42c7 88 InterruptManager::get()->irq_helper();
MikamiUitOpen 4:c1beacfc42c7 89 }
MikamiUitOpen 4:c1beacfc42c7 90
MikamiUitOpen 4:c1beacfc42c7 91 } // namespace mbed
MikamiUitOpen 4:c1beacfc42c7 92
MikamiUitOpen 4:c1beacfc42c7 93 #endif