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58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* This file is part of open_agb_firm
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* Copyright (C) 2021 derrek, profi200
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "types.h"
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#include "mem_map.h"
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#include "arm9/drivers/interrupt.h"
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#define IRQ_REGS_BASE (IO_MEM_ARM9_ONLY + 0x1000)
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#define REG_IRQ_IE *((vu32*)(IRQ_REGS_BASE + 0x00))
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#define REG_IRQ_IF *((vu32*)(IRQ_REGS_BASE + 0x04))
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IrqIsr g_irqIsrTable[32] = {0};
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void IRQ_init(void)
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{
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REG_IRQ_IE = 0;
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REG_IRQ_IF = 0xFFFFFFFFu;
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}
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void IRQ_registerIsr(Interrupt id, IrqIsr isr)
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{
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const u32 oldState = enterCriticalSection();
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g_irqIsrTable[id] = isr;
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REG_IRQ_IE |= 1u<<id;
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leaveCriticalSection(oldState);
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}
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void IRQ_unregisterIsr(Interrupt id)
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{
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const u32 oldState = enterCriticalSection();
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REG_IRQ_IE &= ~(1u<<id);
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g_irqIsrTable[id] = (IrqIsr)NULL;
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leaveCriticalSection(oldState);
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}
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