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/*
* isa bus support for qdev.
*
* Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "hw.h"
#include "sysemu.h"
#include "isa.h"
struct ISABus {
BusState qbus;
};
static ISABus *isabus;
static struct BusInfo isa_bus_info = {
.name = "ISA",
.size = sizeof(ISABus),
.props = (Property[]) {
{
.name = "iobase",
.info = &qdev_prop_hex32,
.offset = offsetof(ISADevice, iobase[0]),
.defval = (uint32_t[]) { -1 },
},{
.name = "iobase2",
.info = &qdev_prop_hex32,
.offset = offsetof(ISADevice, iobase[1]),
.defval = (uint32_t[]) { -1 },
},
{/* end of list */}
}
};
ISABus *isa_bus_new(DeviceState *dev)
{
if (isabus) {
fprintf(stderr, "Can't create a second ISA bus\n");
return NULL;
}
isabus = FROM_QBUS(ISABus, qbus_create(&isa_bus_info, dev, NULL));
return isabus;
}
void isa_connect_irq(ISADevice *dev, int n, qemu_irq irq)
{
assert(n >= 0 && n < dev->nirqs);
if (dev->irqs[n])
*dev->irqs[n] = irq;
}
void isa_init_irq(ISADevice *dev, qemu_irq *p)
{
assert(dev->nirqs < ARRAY_SIZE(dev->irqs));
dev->irqs[dev->nirqs] = p;
dev->nirqs++;
}
static void isa_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
ISADevice *dev = DO_UPCAST(ISADevice, qdev, qdev);
ISADeviceInfo *info = DO_UPCAST(ISADeviceInfo, qdev, base);
info->init(dev);
}
void isa_qdev_register(ISADeviceInfo *info)
{
info->qdev.init = isa_qdev_init;
info->qdev.bus_info = &isa_bus_info;
qdev_register(&info->qdev);
}
ISADevice *isa_create_simple(const char *name, uint32_t iobase, uint32_t iobase2)
{
DeviceState *dev;
ISADevice *isa;
if (!isabus) {
fprintf(stderr, "Tried to create isa device %s with no isa bus present.\n", name);
return NULL;
}
dev = qdev_create(&isabus->qbus, name);
isa = DO_UPCAST(ISADevice, qdev, dev);
isa->iobase[0] = iobase;
isa->iobase[1] = iobase2;
qdev_init(dev);
return isa;
}
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