92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-24 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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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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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef HW_INTERRUPT_H
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#define HW_INTERRUPT_H
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#include <cinttypes>
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//#define DEBUG_CPU_INT // uncomment this to enable hacks for debugging HW interrupts
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/** Enumerator for various interrupt sources. */
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enum IntSrc : uint32_t {
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INT_UNKNOWN = 0,
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VIA_CUDA,
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SCSI_MESH,
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SCSI_CURIO,
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SWIM3,
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SCCA,
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SCCB,
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ETHERNET,
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NMI,
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EXT1,
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IDE0,
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IDE1,
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DAVBUS,
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PERCH1,
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PERCH2,
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PCI_A,
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PCI_B,
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PCI_C,
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PCI_D,
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PCI_E,
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PCI_F,
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PCI_GPU,
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PCI_PERCH,
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BANDIT1,
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BANDIT2,
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CONTROL,
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SIXTY6,
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PLANB,
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VCI,
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PLATINUM,
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DMA_SCSI_MESH,
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DMA_SCSI_CURIO,
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DMA_SWIM3,
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DMA_IDE0,
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DMA_IDE1,
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DMA_SCCA_Tx,
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DMA_SCCA_Rx,
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DMA_SCCB_Tx,
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DMA_SCCB_Rx,
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DMA_DAVBUS_Tx,
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DMA_DAVBUS_Rx,
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DMA_ETHERNET_Tx,
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DMA_ETHERNET_Rx,
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};
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/** Base class for interrupt controllers. */
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class InterruptCtrl {
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public:
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InterruptCtrl() = default;
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virtual ~InterruptCtrl() = default;
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// register interrupt sources for a device
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virtual uint32_t register_dev_int(IntSrc src_id) = 0;
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virtual uint32_t register_dma_int(IntSrc src_id) = 0;
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// acknowledge HW interrupt
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virtual void ack_int(uint32_t irq_id, uint8_t irq_line_state) = 0;
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virtual void ack_dma_int(uint32_t irq_id, uint8_t irq_line_state) = 0;
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};
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#endif // HW_INTERRUPT_H
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