77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
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/*
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* RX Interrupt Control Unit
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*
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* Copyright (c) 2019 Yoshinori Sato
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_INTC_RX_ICU_H
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#define HW_INTC_RX_ICU_H
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#include "hw/sysbus.h"
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enum TRG_MODE {
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TRG_LEVEL = 0,
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TRG_NEDGE = 1, /* Falling */
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TRG_PEDGE = 2, /* Raising */
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TRG_BEDGE = 3, /* Both */
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};
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struct IRQSource {
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enum TRG_MODE sense;
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int level;
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};
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enum {
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/* Software interrupt request */
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SWI = 27,
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NR_IRQS = 256
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};
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struct RXICUState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion memory;
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struct IRQSource src[NR_IRQS];
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uint32_t nr_irqs;
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uint8_t *map;
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uint32_t nr_sense;
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uint8_t *init_sense;
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uint8_t ir[NR_IRQS];
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uint8_t dtcer[NR_IRQS];
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uint8_t ier[NR_IRQS / 8];
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uint8_t ipr[142];
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uint8_t dmasr[4];
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uint16_t fir;
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uint8_t nmisr;
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uint8_t nmier;
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uint8_t nmiclr;
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uint8_t nmicr;
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int16_t req_irq;
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qemu_irq _irq;
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qemu_irq _fir;
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qemu_irq _swi;
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};
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typedef struct RXICUState RXICUState;
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#define TYPE_RX_ICU "rx-icu"
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#define RX_ICU(obj) OBJECT_CHECK(RXICUState, (obj), TYPE_RX_ICU)
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#endif /* RX_ICU_H */
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