55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-22 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that 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 <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef HW_INTERRUPT_H
|
|
#define HW_INTERRUPT_H
|
|
|
|
#include <cinttypes>
|
|
|
|
//#define DEBUG_CPU_INT // uncomment this to enable hacks for debugging HW interrupts
|
|
|
|
/** Enumerator for various interrupt sources. */
|
|
enum IntSrc : int {
|
|
VIA_CUDA = 1,
|
|
SCSI1 = 2,
|
|
SWIM3 = 3,
|
|
SCC = 4,
|
|
ETHERNET = 5,
|
|
NMI = 6,
|
|
};
|
|
|
|
/** Base class for interrupt controllers. */
|
|
class InterruptCtrl {
|
|
public:
|
|
InterruptCtrl() = default;
|
|
virtual ~InterruptCtrl() = default;
|
|
|
|
// register interrupt sources for a device
|
|
virtual uint32_t register_dev_int(IntSrc src_id) = 0;
|
|
virtual uint32_t register_dma_int(IntSrc src_id) = 0;
|
|
|
|
// acknowledge HW interrupt
|
|
virtual void ack_int(uint32_t irq_id, uint8_t irq_line_state) = 0;
|
|
virtual void ack_dma_int(uint32_t irq_id, uint8_t irq_line_state) = 0;
|
|
};
|
|
|
|
#endif // HW_INTERRUPT_H
|