flipperzero-firmware/core/api-hal/api-interrupt-mgr.c
SG f49f30f8a7
[FL-1274] Interrupt manager: cleaned version (#490)
* HAL interrupl manager: cleaned version
* HAL interrupt manager: mem barriers
* HAL interrupt manager: volatile interrupt list

Co-authored-by: あく <alleteam@gmail.com>
2021-05-25 13:56:27 +03:00

66 lines
1.9 KiB
C

#include "api-interrupt-mgr.h"
#include <cmsis_os2.h>
#include <furi.h>
static volatile InterruptCallbackItem callback_list[InterruptTypeLast];
bool api_interrupt_init() {
for(uint8_t i = 0; i < InterruptTypeLast; i++) {
callback_list[i].callback = NULL;
callback_list[i].context = NULL;
callback_list[i].ready = false;
}
return true;
}
void api_interrupt_add(InterruptCallback callback, InterruptType type, void* context) {
furi_assert(type < InterruptTypeLast);
furi_check(callback_list[type].callback == NULL);
callback_list[type].callback = callback;
callback_list[type].context = context;
__DMB();
callback_list[type].ready = true;
}
void api_interrupt_remove(InterruptCallback callback, InterruptType type) {
furi_assert(type < InterruptTypeLast);
if(callback_list[type].callback != NULL) {
furi_check(callback_list[type].callback == callback);
}
callback_list[type].ready = false;
__DMB();
callback_list[type].callback = NULL;
callback_list[type].context = NULL;
}
void api_interrupt_enable(InterruptCallback callback, InterruptType type) {
furi_assert(type < InterruptTypeLast);
furi_check(callback_list[type].callback == callback);
callback_list[type].ready = true;
__DMB();
}
void api_interrupt_disable(InterruptCallback callback, InterruptType type) {
furi_assert(type < InterruptTypeLast);
furi_check(callback_list[type].callback == callback);
callback_list[type].ready = false;
__DMB();
}
void api_interrupt_call(InterruptType type, void* hw) {
// that executed in interrupt ctx so mutex don't needed
// but we need to check ready flag
furi_assert(type < InterruptTypeLast);
if(callback_list[type].callback != NULL) {
if(callback_list[type].ready) {
callback_list[type].callback(hw, callback_list[type].context);
}
}
}