mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-12-04 20:18:32 +01:00
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
|
/*
|
||
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
||
|
*
|
||
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
* under the terms and conditions of the GNU General Public License,
|
||
|
* version 2, as published by the Free Software Foundation.
|
||
|
*
|
||
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
* more details.
|
||
|
*
|
||
|
* You should have received a copy of the GNU General Public License
|
||
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
*/
|
||
|
#include <exosphere.hpp>
|
||
|
#include "secmon_interrupt_handler.hpp"
|
||
|
#include "secmon_error.hpp"
|
||
|
|
||
|
namespace ams::secmon {
|
||
|
|
||
|
namespace {
|
||
|
|
||
|
constexpr inline int InterruptHandlersMax = 4;
|
||
|
|
||
|
constinit InterruptHandler g_handlers[InterruptHandlersMax] = {};
|
||
|
constinit int g_interrupt_ids[InterruptHandlersMax] = {};
|
||
|
|
||
|
}
|
||
|
|
||
|
void SetInterruptHandler(int interrupt_id, InterruptHandler handler) {
|
||
|
for (int i = 0; i < InterruptHandlersMax; ++i) {
|
||
|
if (g_interrupt_ids[i] == 0) {
|
||
|
g_interrupt_ids[i] = interrupt_id;
|
||
|
g_handlers[i] = handler;
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
AMS_ABORT("Failed to register interrupt handler");
|
||
|
}
|
||
|
|
||
|
void HandleInterrupt() {
|
||
|
/* Get the interrupt id. */
|
||
|
const int interrupt_id = gic::GetInterruptRequestId();
|
||
|
if (interrupt_id >= gic::InterruptCount) {
|
||
|
/* Invalid interrupt number, just return. */
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* Check each handler. */
|
||
|
for (int i = 0; i < InterruptHandlersMax; ++i) {
|
||
|
if (g_interrupt_ids[i] == interrupt_id) {
|
||
|
/* Invoke the handler. */
|
||
|
g_handlers[i]();
|
||
|
gic::SetEndOfInterrupt(interrupt_id);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
AMS_ABORT("Failed to find interrupt handler.");
|
||
|
}
|
||
|
|
||
|
}
|