不韋 呂 / F746_SD_BitmapViewer

microSD カードのビットマップ･ファイルのビュアー．画像の最大値　縦：272ピクセル，横：480ピクセル． Bitmap file viewer for microSD card. Maximum size Vertical: 272 pixels, Horizontal: 480.

Dependencies:   SDFileSystem_Warning_Fixed F746_GUI

mbed_src_STM32F7/common/InterruptManager.cpp@1:bb146d5fe9aa, 2018-10-23 (annotated)

Committer:
MikamiUitOpen
Date:
Tue Oct 23 11:51:47 2018 +0000
Revision:
1:bb146d5fe9aa
Parent:
0:f62ffd3644bf 
2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:f62ffd3644bf 1 #include "cmsis.h"
MikamiUitOpen 0:f62ffd3644bf 2 #if defined(NVIC_NUM_VECTORS)
MikamiUitOpen 0:f62ffd3644bf 3
MikamiUitOpen 0:f62ffd3644bf 4 #include "InterruptManager.h"
MikamiUitOpen 0:f62ffd3644bf 5 #include <string.h>
MikamiUitOpen 0:f62ffd3644bf 6
MikamiUitOpen 0:f62ffd3644bf 7 #define CHAIN_INITIAL_SIZE 4
MikamiUitOpen 0:f62ffd3644bf 8
MikamiUitOpen 0:f62ffd3644bf 9 namespace mbed {
MikamiUitOpen 0:f62ffd3644bf 10
MikamiUitOpen 0:f62ffd3644bf 11 typedef void (*pvoidf)(void);
MikamiUitOpen 0:f62ffd3644bf 12
MikamiUitOpen 0:f62ffd3644bf 13 InterruptManager* InterruptManager::_instance = (InterruptManager*)NULL;
MikamiUitOpen 0:f62ffd3644bf 14
MikamiUitOpen 0:f62ffd3644bf 15 InterruptManager* InterruptManager::get() {
MikamiUitOpen 0:f62ffd3644bf 16 if (NULL == _instance)
MikamiUitOpen 0:f62ffd3644bf 17 _instance = new InterruptManager();
MikamiUitOpen 0:f62ffd3644bf 18 return _instance;
MikamiUitOpen 0:f62ffd3644bf 19 }
MikamiUitOpen 0:f62ffd3644bf 20
MikamiUitOpen 0:f62ffd3644bf 21 InterruptManager::InterruptManager() {
MikamiUitOpen 0:f62ffd3644bf 22 memset(_chains, 0, NVIC_NUM_VECTORS * sizeof(CallChain*));
MikamiUitOpen 0:f62ffd3644bf 23 }
MikamiUitOpen 0:f62ffd3644bf 24
MikamiUitOpen 0:f62ffd3644bf 25 void InterruptManager::destroy() {
MikamiUitOpen 0:f62ffd3644bf 26 // Not a good idea to call this unless NO interrupt at all
MikamiUitOpen 0:f62ffd3644bf 27 // is under the control of the handler; otherwise, a system crash
MikamiUitOpen 0:f62ffd3644bf 28 // is very likely to occur
MikamiUitOpen 0:f62ffd3644bf 29 if (NULL != _instance) {
MikamiUitOpen 0:f62ffd3644bf 30 delete _instance;
MikamiUitOpen 0:f62ffd3644bf 31 _instance = (InterruptManager*)NULL;
MikamiUitOpen 0:f62ffd3644bf 32 }
MikamiUitOpen 0:f62ffd3644bf 33 }
MikamiUitOpen 0:f62ffd3644bf 34
MikamiUitOpen 0:f62ffd3644bf 35 InterruptManager::~InterruptManager() {
MikamiUitOpen 0:f62ffd3644bf 36 for(int i = 0; i < NVIC_NUM_VECTORS; i++)
MikamiUitOpen 0:f62ffd3644bf 37 if (NULL != _chains[i])
MikamiUitOpen 0:f62ffd3644bf 38 delete _chains[i];
MikamiUitOpen 0:f62ffd3644bf 39 }
MikamiUitOpen 0:f62ffd3644bf 40
MikamiUitOpen 0:f62ffd3644bf 41 bool InterruptManager::must_replace_vector(IRQn_Type irq) {
MikamiUitOpen 0:f62ffd3644bf 42 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:f62ffd3644bf 43
MikamiUitOpen 0:f62ffd3644bf 44 if (NULL == _chains[irq_pos]) {
MikamiUitOpen 0:f62ffd3644bf 45 _chains[irq_pos] = new CallChain(CHAIN_INITIAL_SIZE);
MikamiUitOpen 0:f62ffd3644bf 46 _chains[irq_pos]->add((pvoidf)NVIC_GetVector(irq));
MikamiUitOpen 0:f62ffd3644bf 47 return true;
MikamiUitOpen 0:f62ffd3644bf 48 }
MikamiUitOpen 0:f62ffd3644bf 49 return false;
MikamiUitOpen 0:f62ffd3644bf 50 }
MikamiUitOpen 0:f62ffd3644bf 51
MikamiUitOpen 0:f62ffd3644bf 52 pFunctionPointer_t InterruptManager::add_common(void (*function)(void), IRQn_Type irq, bool front) {
MikamiUitOpen 0:f62ffd3644bf 53 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:f62ffd3644bf 54 bool change = must_replace_vector(irq);
MikamiUitOpen 0:f62ffd3644bf 55
MikamiUitOpen 0:f62ffd3644bf 56 pFunctionPointer_t pf = front ? _chains[irq_pos]->add_front(function) : _chains[irq_pos]->add(function);
MikamiUitOpen 0:f62ffd3644bf 57 if (change)
MikamiUitOpen 0:f62ffd3644bf 58 NVIC_SetVector(irq, (uint32_t)&InterruptManager::static_irq_helper);
MikamiUitOpen 0:f62ffd3644bf 59 return pf;
MikamiUitOpen 0:f62ffd3644bf 60 }
MikamiUitOpen 0:f62ffd3644bf 61
MikamiUitOpen 0:f62ffd3644bf 62 bool InterruptManager::remove_handler(pFunctionPointer_t handler, IRQn_Type irq) {
MikamiUitOpen 0:f62ffd3644bf 63 int irq_pos = get_irq_index(irq);
MikamiUitOpen 0:f62ffd3644bf 64
MikamiUitOpen 0:f62ffd3644bf 65 if (NULL == _chains[irq_pos])
MikamiUitOpen 0:f62ffd3644bf 66 return false;
MikamiUitOpen 0:f62ffd3644bf 67 if (!_chains[irq_pos]->remove(handler))
MikamiUitOpen 0:f62ffd3644bf 68 return false;
MikamiUitOpen 0:f62ffd3644bf 69 // If there's a single function left in the chain, swith the interrupt vector
MikamiUitOpen 0:f62ffd3644bf 70 // to call that function directly. This way we save both time and space.
MikamiUitOpen 0:f62ffd3644bf 71 if (_chains[irq_pos]->size() == 1 && NULL != _chains[irq_pos]->get(0)->get_function()) {
MikamiUitOpen 0:f62ffd3644bf 72 NVIC_SetVector(irq, (uint32_t)_chains[irq_pos]->get(0)->get_function());
MikamiUitOpen 0:f62ffd3644bf 73 delete _chains[irq_pos];
MikamiUitOpen 0:f62ffd3644bf 74 _chains[irq_pos] = (CallChain*) NULL;
MikamiUitOpen 0:f62ffd3644bf 75 }
MikamiUitOpen 0:f62ffd3644bf 76 return true;
MikamiUitOpen 0:f62ffd3644bf 77 }
MikamiUitOpen 0:f62ffd3644bf 78
MikamiUitOpen 0:f62ffd3644bf 79 void InterruptManager::irq_helper() {
MikamiUitOpen 0:f62ffd3644bf 80 _chains[__get_IPSR()]->call();
MikamiUitOpen 0:f62ffd3644bf 81 }
MikamiUitOpen 0:f62ffd3644bf 82
MikamiUitOpen 0:f62ffd3644bf 83 int InterruptManager::get_irq_index(IRQn_Type irq) {
MikamiUitOpen 0:f62ffd3644bf 84 return (int)irq + NVIC_USER_IRQ_OFFSET;
MikamiUitOpen 0:f62ffd3644bf 85 }
MikamiUitOpen 0:f62ffd3644bf 86
MikamiUitOpen 0:f62ffd3644bf 87 void InterruptManager::static_irq_helper() {
MikamiUitOpen 0:f62ffd3644bf 88 InterruptManager::get()->irq_helper();
MikamiUitOpen 0:f62ffd3644bf 89 }
MikamiUitOpen 0:f62ffd3644bf 90
MikamiUitOpen 0:f62ffd3644bf 91 } // namespace mbed
MikamiUitOpen 0:f62ffd3644bf 92
MikamiUitOpen 0:f62ffd3644bf 93 #endif