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According to "Designing Cards and Drivers for the Macintosh Family" the Nubus has its own 32-bit address space based upon physical slot addressing. Move Nubus to its own 32-bit address space and then use memory region aliases to map available slot and super slot ranges into the q800 system address space via the Macintosh Nubus bridge. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210924073808.1041-13-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
30 lines
707 B
C
30 lines
707 B
C
/*
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* Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
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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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*/
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#ifndef HW_NUBUS_MAC_H
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#define HW_NUBUS_MAC_H
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#include "hw/nubus/nubus.h"
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#include "qom/object.h"
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#define MAC_NUBUS_FIRST_SLOT 0x9
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#define MAC_NUBUS_LAST_SLOT 0xe
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#define MAC_NUBUS_SLOT_NB (MAC_NUBUS_LAST_SLOT - MAC_NUBUS_FIRST_SLOT + 1)
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#define TYPE_MAC_NUBUS_BRIDGE "mac-nubus-bridge"
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OBJECT_DECLARE_SIMPLE_TYPE(MacNubusState, MAC_NUBUS_BRIDGE)
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struct MacNubusState {
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SysBusDevice sysbus_dev;
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NubusBus *bus;
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MemoryRegion super_slot_alias;
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MemoryRegion slot_alias;
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};
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#endif
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