dde602ae53
These will soon be required to enable nubus devices to support interrupts. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210830102447.10806-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/*
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*
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* Copyright (c) 2011-2018 Laurent Vivier
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef HW_MISC_MAC_VIA_H
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#define HW_MISC_MAC_VIA_H
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#include "exec/memory.h"
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#include "hw/sysbus.h"
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#include "hw/misc/mos6522.h"
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#include "qom/object.h"
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#define VIA_SIZE 0x2000
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/* VIA 1 */
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#define VIA1_IRQ_ONE_SECOND_BIT 0
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#define VIA1_IRQ_60HZ_BIT 1
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#define VIA1_IRQ_ADB_READY_BIT 2
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#define VIA1_IRQ_ADB_DATA_BIT 3
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#define VIA1_IRQ_ADB_CLOCK_BIT 4
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#define VIA1_IRQ_NB 8
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#define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT)
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#define VIA1_IRQ_60HZ (1 << VIA1_IRQ_60HZ_BIT)
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#define VIA1_IRQ_ADB_READY (1 << VIA1_IRQ_ADB_READY_BIT)
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#define VIA1_IRQ_ADB_DATA (1 << VIA1_IRQ_ADB_DATA_BIT)
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#define VIA1_IRQ_ADB_CLOCK (1 << VIA1_IRQ_ADB_CLOCK_BIT)
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#define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1"
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OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1)
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struct MOS6522Q800VIA1State {
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/*< private >*/
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MOS6522State parent_obj;
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MemoryRegion via_mem;
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qemu_irq irqs[VIA1_IRQ_NB];
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uint8_t last_b;
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/* RTC */
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uint8_t PRAM[256];
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BlockBackend *blk;
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VMChangeStateEntry *vmstate;
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uint32_t tick_offset;
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uint8_t data_out;
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int data_out_cnt;
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uint8_t data_in;
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uint8_t data_in_cnt;
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uint8_t cmd;
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int wprotect;
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int alt;
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/* ADB */
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ADBBusState adb_bus;
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qemu_irq adb_data_ready;
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int adb_data_in_size;
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int adb_data_in_index;
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int adb_data_out_index;
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uint8_t adb_data_in[128];
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uint8_t adb_data_out[16];
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uint8_t adb_autopoll_cmd;
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/* external timers */
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QEMUTimer *one_second_timer;
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int64_t next_second;
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QEMUTimer *sixty_hz_timer;
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int64_t next_sixty_hz;
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};
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/* VIA 2 */
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#define VIA2_IRQ_SCSI_DATA_BIT 0
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#define VIA2_IRQ_NUBUS_BIT 1
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#define VIA2_IRQ_UNUSED_BIT 2
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#define VIA2_IRQ_SCSI_BIT 3
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#define VIA2_IRQ_ASC_BIT 4
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#define VIA2_IRQ_NB 8
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#define VIA2_IRQ_SCSI_DATA (1 << VIA2_IRQ_SCSI_DATA_BIT)
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#define VIA2_IRQ_NUBUS (1 << VIA2_IRQ_NUBUS_BIT)
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#define VIA2_IRQ_UNUSED (1 << VIA2_IRQ_SCSI_BIT)
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#define VIA2_IRQ_SCSI (1 << VIA2_IRQ_UNUSED_BIT)
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#define VIA2_IRQ_ASC (1 << VIA2_IRQ_ASC_BIT)
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#define VIA2_NUBUS_IRQ_NB 7
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#define VIA2_NUBUS_IRQ_9 0
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#define VIA2_NUBUS_IRQ_A 1
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#define VIA2_NUBUS_IRQ_B 2
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#define VIA2_NUBUS_IRQ_C 3
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#define VIA2_NUBUS_IRQ_D 4
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#define VIA2_NUBUS_IRQ_E 5
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#define VIA2_NUBUS_IRQ_INTVIDEO 6
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#define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2"
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OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2)
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struct MOS6522Q800VIA2State {
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/*< private >*/
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MOS6522State parent_obj;
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MemoryRegion via_mem;
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};
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#endif
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