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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 2.1 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 "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "sysemu/runstate.h"
#include "ide-internal.h"
static char *idebus_get_fw_dev_path(DeviceState *dev);
static void idebus_unrealize(BusState *qdev);
static void ide_bus_class_init(ObjectClass *klass, void *data)
{
BusClass *k = BUS_CLASS(klass);
k->get_fw_dev_path = idebus_get_fw_dev_path;
k->unrealize = idebus_unrealize;
}
static void idebus_unrealize(BusState *bus)
{
IDEBus *ibus = IDE_BUS(bus);
if (ibus->vmstate) {
qemu_del_vm_change_state_handler(ibus->vmstate);
}
}
static const TypeInfo ide_bus_info = {
.name = TYPE_IDE_BUS,
.parent = TYPE_BUS,
.instance_size = sizeof(IDEBus),
.class_init = ide_bus_class_init,
};
void ide_bus_init(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
int bus_id, int max_units)
{
qbus_init(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
idebus->bus_id = bus_id;
idebus->max_units = max_units;
}
static char *idebus_get_fw_dev_path(DeviceState *dev)
{
char path[30];
snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
((IDEBus *)dev->parent_bus)->bus_id);
return g_strdup(path);
}
IDEDevice *ide_bus_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
{
DeviceState *dev;
dev = qdev_new(drive->media_cd ? "ide-cd" : "ide-hd");
qdev_prop_set_uint32(dev, "unit", unit);
qdev_prop_set_drive_err(dev, "drive", blk_by_legacy_dinfo(drive),
&error_fatal);
qdev_realize_and_unref(dev, &bus->qbus, &error_fatal);
return DO_UPCAST(IDEDevice, qdev, dev);
}
int ide_get_geometry(BusState *bus, int unit,
int16_t *cyls, int8_t *heads, int8_t *secs)
{
IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
if (s->drive_kind != IDE_HD || !s->blk) {
return -1;
}
*cyls = s->cylinders;
*heads = s->heads;
*secs = s->sectors;
return 0;
}
int ide_get_bios_chs_trans(BusState *bus, int unit)
{
return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
}
static void ide_bus_register_type(void)
{
type_register_static(&ide_bus_info);
}
type_init(ide_bus_register_type)
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