不韋 呂 / F746_MySoundMachine

Integrated program of 4 different kinds of application programs for processing sound signal. 4種類のサウンド信号処理を統合したプログラム．

Dependencies:   F746_GUI F746_SAI_IO FrequencyResponseDrawer SD_PlayerSkeleton UIT_FFT_Real

mbed_src_STM/common/InterruptManager.cpp@0:224dccbc4edd, 2016-08-15 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Aug 15 07:18:07 2016 +0000
Revision:
0:224dccbc4edd
1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:224dccbc4edd 1 #include "cmsis.h"
MikamiUitOpen 0:224dccbc4edd 2 #if defined(NVIC_NUM_VECTORS)
MikamiUitOpen 0:224dccbc4edd 3
MikamiUitOpen 0:224dccbc4edd 4 #include "InterruptManager.h"
MikamiUitOpen 0:224dccbc4edd 5 #include <string.h>
MikamiUitOpen 0:224dccbc4edd 6
MikamiUitOpen 0:224dccbc4edd 7 #define CHAIN_INITIAL_SIZE 4
MikamiUitOpen 0:224dccbc4edd 8
MikamiUitOpen 0:224dccbc4edd 9 namespace mbed {
MikamiUitOpen 0:224dccbc4edd 10
MikamiUitOpen 0:224dccbc4edd 11 typedef void (*pvoidf)(void);
MikamiUitOpen 0:224dccbc4edd 12
MikamiUitOpen 0:224dccbc4edd 13 InterruptManager* InterruptManager::_instance = (InterruptManager*)NULL;
MikamiUitOpen 0:224dccbc4edd 14
MikamiUitOpen 0:224dccbc4edd 15 InterruptManager* InterruptManager::get() {
MikamiUitOpen 0:224dccbc4edd 16 if (NULL == _instance)
MikamiUitOpen 0:224dccbc4edd 17 _instance = new InterruptManager();
MikamiUitOpen 0:224dccbc4edd 18 return _instance;
MikamiUitOpen 0:224dccbc4edd 19 }
MikamiUitOpen 0:224dccbc4edd 20
MikamiUitOpen 0:224dccbc4edd 21 InterruptManager::InterruptManager() {
MikamiUitOpen 0:224dccbc4edd 22 memset(_chains, 0, NVIC_NUM_VECTORS * sizeof(CallChain*));
MikamiUitOpen 0:224dccbc4edd 23 }
MikamiUitOpen 0:224dccbc4edd 24
MikamiUitOpen 0:224dccbc4edd 25 void InterruptManager::destroy() {
MikamiUitOpen 0:224dccbc4edd 26 // Not a good idea to call this unless NO interrupt at all
MikamiUitOpen 0:224dccbc4edd 27 // is under the control of the handler; otherwise, a system crash
MikamiUitOpen 0:224dccbc4edd 28 // is very likely to occur
MikamiUitOpen 0:224dccbc4edd 29 if (NULL != _instance) {
MikamiUitOpen 0:224dccbc4edd 30 delete _instance;
MikamiUitOpen 0:224dccbc4edd 31 _instance = (InterruptManager*)NULL;
MikamiUitOpen 0:224dccbc4edd 32 }
MikamiUitOpen 0:224dccbc4edd 33 }
MikamiUitOpen 0:224dccbc4edd 34
MikamiUitOpen 0:224dccbc4edd 35 InterruptManager::~InterruptManager() {
MikamiUitOpen 0:224dccbc4edd 36 for(int i = 0; i < NVIC_NUM_VECTORS; i++)
MikamiUitOpen 0:224dccbc4edd 37 if (NULL != _chains[i])
MikamiUitOpen 0:224dccbc4edd 38 delete _chains[i];
MikamiUitOpen 0:224dccbc4edd 39 }
MikamiUitOpen 0:224dccbc4edd 40
MikamiUitOpen 0:224dccbc4edd 41 bool InterruptManager::must_replace_vector(IRQn_Type irq) {
MikamiUitOpen 0:224dccbc4edd 42 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:224dccbc4edd 43
MikamiUitOpen 0:224dccbc4edd 44 if (NULL == _chains[irq_pos]) {
MikamiUitOpen 0:224dccbc4edd 45 _chains[irq_pos] = new CallChain(CHAIN_INITIAL_SIZE);
MikamiUitOpen 0:224dccbc4edd 46 _chains[irq_pos]->add((pvoidf)NVIC_GetVector(irq));
MikamiUitOpen 0:224dccbc4edd 47 return true;
MikamiUitOpen 0:224dccbc4edd 48 }
MikamiUitOpen 0:224dccbc4edd 49 return false;
MikamiUitOpen 0:224dccbc4edd 50 }
MikamiUitOpen 0:224dccbc4edd 51
MikamiUitOpen 0:224dccbc4edd 52 pFunctionPointer_t InterruptManager::add_common(void (*function)(void), IRQn_Type irq, bool front) {
MikamiUitOpen 0:224dccbc4edd 53 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:224dccbc4edd 54 bool change = must_replace_vector(irq);
MikamiUitOpen 0:224dccbc4edd 55
MikamiUitOpen 0:224dccbc4edd 56 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(function) : _chains[irq_pos]->add(function);
MikamiUitOpen 0:224dccbc4edd 57 if (change)
MikamiUitOpen 0:224dccbc4edd 58 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
MikamiUitOpen 0:224dccbc4edd 59 return pf;
MikamiUitOpen 0:224dccbc4edd 60 }
MikamiUitOpen 0:224dccbc4edd 61
MikamiUitOpen 0:224dccbc4edd 62 bool InterruptManager::remove_handler(pFunctionPointer_t handler, IRQn_Type irq) {
MikamiUitOpen 0:224dccbc4edd 63 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:224dccbc4edd 64
MikamiUitOpen 0:224dccbc4edd 65 if (NULL == _chains[irq_pos])
MikamiUitOpen 0:224dccbc4edd 66 return false;
MikamiUitOpen 0:224dccbc4edd 67 if (!_chains[irq_pos]->remove(handler))
MikamiUitOpen 0:224dccbc4edd 68 return false;
MikamiUitOpen 0:224dccbc4edd 69 // If there's a single function left in the chain, swith the interrupt vector
MikamiUitOpen 0:224dccbc4edd 70 // to call that function directly. This way we save both time and space.
MikamiUitOpen 0:224dccbc4edd 71 if (_chains[irq_pos]->size() == 1 && NULL != _chains[irq_pos]->get(0)->get_function()) {
MikamiUitOpen 0:224dccbc4edd 72 NVIC_SetVector(irq, (uint32_t)_chains[irq_pos]->get(0)->get_function());
MikamiUitOpen 0:224dccbc4edd 73 delete _chains[irq_pos];
MikamiUitOpen 0:224dccbc4edd 74 _chains[irq_pos] = (CallChain*) NULL;
MikamiUitOpen 0:224dccbc4edd 75 }
MikamiUitOpen 0:224dccbc4edd 76 return true;
MikamiUitOpen 0:224dccbc4edd 77 }
MikamiUitOpen 0:224dccbc4edd 78
MikamiUitOpen 0:224dccbc4edd 79 void InterruptManager::irq_helper() {
MikamiUitOpen 0:224dccbc4edd 80 _chains[__get_IPSR()]->call();
MikamiUitOpen 0:224dccbc4edd 81 }
MikamiUitOpen 0:224dccbc4edd 82
MikamiUitOpen 0:224dccbc4edd 83 int InterruptManager::get_irq_index(IRQn_Type irq) {
MikamiUitOpen 0:224dccbc4edd 84 return (int)irq + NVIC_USER_IRQ_OFFSET;
MikamiUitOpen 0:224dccbc4edd 85 }
MikamiUitOpen 0:224dccbc4edd 86
MikamiUitOpen 0:224dccbc4edd 87 void InterruptManager::static_irq_helper() {
MikamiUitOpen 0:224dccbc4edd 88 InterruptManager::get()->irq_helper();
MikamiUitOpen 0:224dccbc4edd 89 }
MikamiUitOpen 0:224dccbc4edd 90
MikamiUitOpen 0:224dccbc4edd 91 } // namespace mbed
MikamiUitOpen 0:224dccbc4edd 92
MikamiUitOpen 0:224dccbc4edd 93 #endif