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/*
* qdev fw helpers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/qdev.h"
#include "hw/fw-path-provider.h"
const char *qdev_fw_name(DeviceState *dev)
{
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (dc->fw_name) {
return dc->fw_name;
}
return object_get_typename(OBJECT(dev));
}
static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev)
{
BusClass *bc = BUS_GET_CLASS(bus);
if (bc->get_fw_dev_path) {
return bc->get_fw_dev_path(dev);
}
return NULL;
}
static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
{
Object *obj = OBJECT(dev);
char *d = NULL;
while (!d && obj->parent) {
obj = obj->parent;
d = fw_path_provider_try_get_dev_path(obj, bus, dev);
}
return d;
}
char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev)
{
Object *obj = OBJECT(dev);
return fw_path_provider_try_get_dev_path(obj, bus, dev);
}
static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size)
{
int l = 0;
if (dev && dev->parent_bus) {
char *d;
l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size);
d = qdev_get_fw_dev_path_from_handler(dev->parent_bus, dev);
if (!d) {
d = bus_get_fw_dev_path(dev->parent_bus, dev);
}
if (d) {
l += snprintf(p + l, size - l, "%s", d);
g_free(d);
} else {
return l;
}
}
l += snprintf(p + l , size - l, "/");
return l;
}
char *qdev_get_fw_dev_path(DeviceState *dev)
{
char path[128];
int l;
l = qdev_get_fw_dev_path_helper(dev, path, 128);
path[l - 1] = '\0';
return g_strdup(path);
}
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