d2cf28a0c6
Each Nubus slot has an IRQ line that can be used to request service from the CPU. Connect the IRQs to the Nubus bridge so that they can be wired up using qdev gpios accordingly, and introduce a new nubus_set_irq() function that can be used by Nubus devices to control the slot IRQ. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210924073808.1041-19-mark.cave-ayland@ilande.co.uk> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* QEMU Nubus
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*
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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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#include "qemu/osdep.h"
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#include "hw/sysbus.h"
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#include "hw/nubus/nubus.h"
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static void nubus_bridge_init(Object *obj)
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{
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NubusBridge *s = NUBUS_BRIDGE(obj);
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NubusBus *bus = &s->bus;
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qbus_create_inplace(bus, sizeof(s->bus), TYPE_NUBUS_BUS, DEVICE(s), NULL);
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qdev_init_gpio_out(DEVICE(s), bus->irqs, NUBUS_IRQS);
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}
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static Property nubus_bridge_properties[] = {
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DEFINE_PROP_UINT16("slot-available-mask", NubusBridge,
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bus.slot_available_mask, 0xffff),
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DEFINE_PROP_END_OF_LIST()
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};
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static void nubus_bridge_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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dc->fw_name = "nubus";
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device_class_set_props(dc, nubus_bridge_properties);
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}
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static const TypeInfo nubus_bridge_info = {
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.name = TYPE_NUBUS_BRIDGE,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_init = nubus_bridge_init,
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.instance_size = sizeof(NubusBridge),
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.class_init = nubus_bridge_class_init,
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};
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static void nubus_register_types(void)
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{
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type_register_static(&nubus_bridge_info);
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}
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type_init(nubus_register_types)
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