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/*
* ide 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/hw.h>
#include "sysemu.h"
#include "dma.h"
#include <hw/ide/internal.h>
/* --------------------------------- */
static struct BusInfo ide_bus_info = {
.name = "IDE",
.size = sizeof(IDEBus),
};
IDEBus *ide_bus_new(DeviceState *dev)
{
IDEBus *idebus;
idebus = FROM_QBUS(IDEBus, qbus_create(&ide_bus_info, dev, NULL));
return idebus;
}
static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base)
{
IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev);
IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base);
IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
if (!dev->dinfo) {
fprintf(stderr, "%s: no drive specified\n", qdev->info->name);
goto err;
}
if (dev->unit == -1) {
dev->unit = bus->master ? 1 : 0;
}
switch (dev->unit) {
case 0:
if (bus->master) {
fprintf(stderr, "ide: tried to assign master twice\n");
goto err;
}
bus->master = dev;
break;
case 1:
if (bus->slave) {
fprintf(stderr, "ide: tried to assign slave twice\n");
goto err;
}
bus->slave = dev;
break;
default:
goto err;
}
return info->init(dev);
err:
return -1;
}
static void ide_qdev_register(IDEDeviceInfo *info)
{
info->qdev.init = ide_qdev_init;
info->qdev.bus_info = &ide_bus_info;
qdev_register(&info->qdev);
}
IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
{
DeviceState *dev;
dev = qdev_create(&bus->qbus, "ide-drive");
qdev_prop_set_uint32(dev, "unit", unit);
qdev_prop_set_drive(dev, "drive", drive);
if (qdev_init(dev) != 0)
return NULL;
return DO_UPCAST(IDEDevice, qdev, dev);
}
/* --------------------------------- */
typedef struct IDEDrive {
IDEDevice dev;
} IDEDrive;
static int ide_drive_initfn(IDEDevice *dev)
{
IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
ide_init_drive(bus->ifs + dev->unit, dev->dinfo);
return 0;
}
static IDEDeviceInfo ide_drive_info = {
.qdev.name = "ide-drive",
.qdev.size = sizeof(IDEDrive),
.init = ide_drive_initfn,
.qdev.props = (Property[]) {
DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1),
DEFINE_PROP_DRIVE("drive", IDEDrive, dev.dinfo),
DEFINE_PROP_END_OF_LIST(),
}
};
static void ide_drive_register(void)
{
ide_qdev_register(&ide_drive_info);
}
device_init(ide_drive_register);
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