* 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/* The theory here is that it should be possible to create a machine without
#include "sysemu.h"
#include "monitor.h"
-struct DeviceProperty {
- const char *name;
- DevicePropType type;
- union {
- uint64_t i;
- void *ptr;
- } value;
- DeviceProperty *next;
-};
-
-struct DeviceType {
- DeviceInfo *info;
- DeviceType *next;
-};
-
/* This is a nasty hack to allow passing a NULL bus to qdev_create. */
static BusState *main_system_bus;
-extern struct BusInfo system_bus_info;
-static DeviceType *device_type_list;
+static DeviceInfo *device_info_list;
+
+static BusState *qbus_find_recursive(BusState *bus, const char *name,
+ const BusInfo *info);
+static BusState *qbus_find(const char *path);
/* Register a new device type. */
void qdev_register(DeviceInfo *info)
{
- DeviceType *t;
-
assert(info->size >= sizeof(DeviceState));
+ assert(!info->next);
+
+ info->next = device_info_list;
+ device_info_list = info;
+}
+
+static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
+{
+ DeviceInfo *info;
+
+ /* first check device names */
+ for (info = device_info_list; info != NULL; info = info->next) {
+ if (bus_info && info->bus_info != bus_info)
+ continue;
+ if (strcmp(info->name, name) != 0)
+ continue;
+ return info;
+ }
- t = qemu_mallocz(sizeof(DeviceType));
- t->next = device_type_list;
- device_type_list = t;
- t->info = info;
+ /* failing that check the aliases */
+ for (info = device_info_list; info != NULL; info = info->next) {
+ if (bus_info && info->bus_info != bus_info)
+ continue;
+ if (!info->alias)
+ continue;
+ if (strcmp(info->alias, name) != 0)
+ continue;
+ return info;
+ }
+ return NULL;
}
/* Create a new device. This only initializes the device state structure
initialize the actual device emulation. */
DeviceState *qdev_create(BusState *bus, const char *name)
{
- DeviceType *t;
+ DeviceInfo *info;
DeviceState *dev;
if (!bus) {
bus = main_system_bus;
}
- for (t = device_type_list; t; t = t->next) {
- if (t->info->bus_info != bus->info)
- continue;
- if (strcmp(t->info->name, name) != 0)
- continue;
- break;
- }
- if (!t) {
+ info = qdev_find_info(bus->info, name);
+ if (!info) {
hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
}
- dev = qemu_mallocz(t->info->size);
- dev->type = t;
+ dev = qemu_mallocz(info->size);
+ dev->info = info;
dev->parent_bus = bus;
+ qdev_prop_set_defaults(dev, dev->info->props);
+ qdev_prop_set_defaults(dev, dev->parent_bus->info->props);
+ qdev_prop_set_compat(dev);
LIST_INSERT_HEAD(&bus->children, dev, sibling);
return dev;
}
-/* Initialize a device. Device properties should be set before calling
- this function. IRQs and MMIO regions should be connected/mapped after
- calling this function. */
-void qdev_init(DeviceState *dev)
-{
- dev->type->info->init(dev, dev->type->info);
-}
-
-/* Unlink device from bus and free the structure. */
-void qdev_free(DeviceState *dev)
-{
- LIST_REMOVE(dev, sibling);
- free(dev);
-}
-
-static DeviceProperty *create_prop(DeviceState *dev, const char *name,
- DevicePropType type)
+DeviceState *qdev_device_add(const char *cmdline)
{
- DeviceProperty *prop;
-
- /* TODO: Check for duplicate properties. */
- prop = qemu_mallocz(sizeof(*prop));
- prop->name = qemu_strdup(name);
- prop->type = type;
- prop->next = dev->props;
- dev->props = prop;
-
- return prop;
-}
+ DeviceInfo *info;
+ DeviceState *qdev;
+ BusState *bus;
+ char driver[32], path[128] = "";
+ char tag[32], value[256];
+ const char *params = NULL;
+ int n = 0;
-void qdev_set_prop_int(DeviceState *dev, const char *name, uint64_t value)
-{
- DeviceProperty *prop;
+ if (1 != sscanf(cmdline, "%32[^,],%n", driver, &n)) {
+ fprintf(stderr, "device parse error: \"%s\"\n", cmdline);
+ return NULL;
+ }
+ if (strcmp(driver, "?") == 0) {
+ for (info = device_info_list; info != NULL; info = info->next) {
+ fprintf(stderr, "name \"%s\", bus %s\n", info->name, info->bus_info->name);
+ }
+ return NULL;
+ }
+ if (n) {
+ params = cmdline + n;
+ get_param_value(path, sizeof(path), "bus", params);
+ }
+ info = qdev_find_info(NULL, driver);
+ if (!info) {
+ fprintf(stderr, "Device \"%s\" not found. Try -device '?' for a list.\n",
+ driver);
+ return NULL;
+ }
+ if (info->no_user) {
+ fprintf(stderr, "device \"%s\" can't be added via command line\n",
+ info->name);
+ return NULL;
+ }
- prop = create_prop(dev, name, PROP_TYPE_INT);
- prop->value.i = value;
-}
+ if (strlen(path)) {
+ bus = qbus_find(path);
+ if (!bus)
+ return NULL;
+ qdev = qdev_create(bus, driver);
+ } else {
+ bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info);
+ if (!bus)
+ return NULL;
+ qdev = qdev_create(bus, driver);
+ }
-void qdev_set_prop_dev(DeviceState *dev, const char *name, DeviceState *value)
-{
- DeviceProperty *prop;
+ if (params) {
+ while (params[0]) {
+ if (2 != sscanf(params, "%31[^=]=%255[^,]%n", tag, value, &n)) {
+ fprintf(stderr, "parse error at \"%s\"\n", params);
+ break;
+ }
+ params += n;
+ if (params[0] == ',')
+ params++;
+ if (strcmp(tag, "bus") == 0)
+ continue;
+ if (strcmp(tag, "id") == 0) {
+ qdev->id = qemu_strdup(value);
+ continue;
+ }
+ if (-1 == qdev_prop_parse(qdev, tag, value)) {
+ fprintf(stderr, "can't set property \"%s\" to \"%s\" for \"%s\"\n",
+ tag, value, driver);
+ }
+ }
+ }
- prop = create_prop(dev, name, PROP_TYPE_DEV);
- prop->value.ptr = value;
+ qdev_init(qdev);
+ return qdev;
}
-void qdev_set_prop_ptr(DeviceState *dev, const char *name, void *value)
+/* Initialize a device. Device properties should be set before calling
+ this function. IRQs and MMIO regions should be connected/mapped after
+ calling this function. */
+void qdev_init(DeviceState *dev)
{
- DeviceProperty *prop;
-
- prop = create_prop(dev, name, PROP_TYPE_PTR);
- prop->value.ptr = value;
+ dev->info->init(dev, dev->info);
}
-void qdev_set_netdev(DeviceState *dev, NICInfo *nd)
+/* Unlink device from bus and free the structure. */
+void qdev_free(DeviceState *dev)
{
- assert(!dev->nd);
- dev->nd = nd;
+ LIST_REMOVE(dev, sibling);
+ qemu_free(dev->id);
+ qemu_free(dev);
}
-
/* Get a character (serial) device interface. */
CharDriverState *qdev_init_chardev(DeviceState *dev)
{
static int next_serial;
static int next_virtconsole;
/* FIXME: This is a nasty hack that needs to go away. */
- if (strncmp(dev->type->info->name, "virtio", 6) == 0) {
+ if (strncmp(dev->info->name, "virtio", 6) == 0) {
return virtcon_hds[next_virtconsole++];
} else {
return serial_hds[next_serial++];
return dev->parent_bus;
}
-static DeviceProperty *find_prop(DeviceState *dev, const char *name,
- DevicePropType type)
-{
- DeviceProperty *prop;
-
- for (prop = dev->props; prop; prop = prop->next) {
- if (strcmp(prop->name, name) == 0) {
- assert (prop->type == type);
- return prop;
- }
- }
- return NULL;
-}
-
-uint64_t qdev_get_prop_int(DeviceState *dev, const char *name, uint64_t def)
-{
- DeviceProperty *prop;
-
- prop = find_prop(dev, name, PROP_TYPE_INT);
- if (!prop) {
- return def;
- }
-
- return prop->value.i;
-}
-
-void *qdev_get_prop_ptr(DeviceState *dev, const char *name)
-{
- DeviceProperty *prop;
-
- prop = find_prop(dev, name, PROP_TYPE_PTR);
- assert(prop);
- return prop->value.ptr;
-}
-
-DeviceState *qdev_get_prop_dev(DeviceState *dev, const char *name)
-{
- DeviceProperty *prop;
-
- prop = find_prop(dev, name, PROP_TYPE_DEV);
- if (!prop) {
- return NULL;
- }
- return prop->value.ptr;
-}
-
void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n)
{
assert(dev->num_gpio_in == 0);
{
NICInfo *nd = dev->nd;
assert(nd);
- return qemu_new_vlan_client(nd->vlan, nd->model, nd->name, can_receive,
- receive, receive_iov, cleanup, opaque);
+ nd->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name, can_receive,
+ receive, receive_iov, cleanup, opaque);
+ return nd->vc;
}
}
}
+static BusState *qbus_find_recursive(BusState *bus, const char *name,
+ const BusInfo *info)
+{
+ DeviceState *dev;
+ BusState *child, *ret;
+ int match = 1;
+
+ if (name && (strcmp(bus->name, name) != 0)) {
+ match = 0;
+ }
+ if (info && (bus->info != info)) {
+ match = 0;
+ }
+ if (match) {
+ return bus;
+ }
+
+ LIST_FOREACH(dev, &bus->children, sibling) {
+ LIST_FOREACH(child, &dev->child_bus, sibling) {
+ ret = qbus_find_recursive(child, name, info);
+ if (ret) {
+ return ret;
+ }
+ }
+ }
+ return NULL;
+}
+
+static void qbus_list_bus(DeviceState *dev, char *dest, int len)
+{
+ BusState *child;
+ const char *sep = " ";
+ int pos = 0;
+
+ pos += snprintf(dest+pos, len-pos,"child busses at \"%s\":",
+ dev->id ? dev->id : dev->info->name);
+ LIST_FOREACH(child, &dev->child_bus, sibling) {
+ pos += snprintf(dest+pos, len-pos, "%s\"%s\"", sep, child->name);
+ sep = ", ";
+ }
+}
+
+static void qbus_list_dev(BusState *bus, char *dest, int len)
+{
+ DeviceState *dev;
+ const char *sep = " ";
+ int pos = 0;
+
+ pos += snprintf(dest+pos, len-pos, "devices at \"%s\":",
+ bus->name);
+ LIST_FOREACH(dev, &bus->children, sibling) {
+ pos += snprintf(dest+pos, len-pos, "%s\"%s\"",
+ sep, dev->info->name);
+ if (dev->id)
+ pos += snprintf(dest+pos, len-pos, "/\"%s\"", dev->id);
+ sep = ", ";
+ }
+}
+
+static BusState *qbus_find_bus(DeviceState *dev, char *elem)
+{
+ BusState *child;
+
+ LIST_FOREACH(child, &dev->child_bus, sibling) {
+ if (strcmp(child->name, elem) == 0) {
+ return child;
+ }
+ }
+ return NULL;
+}
+
+static DeviceState *qbus_find_dev(BusState *bus, char *elem)
+{
+ DeviceState *dev;
+
+ /*
+ * try to match in order:
+ * (1) instance id, if present
+ * (2) driver name
+ * (3) driver alias, if present
+ */
+ LIST_FOREACH(dev, &bus->children, sibling) {
+ if (dev->id && strcmp(dev->id, elem) == 0) {
+ return dev;
+ }
+ }
+ LIST_FOREACH(dev, &bus->children, sibling) {
+ if (strcmp(dev->info->name, elem) == 0) {
+ return dev;
+ }
+ }
+ LIST_FOREACH(dev, &bus->children, sibling) {
+ if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) {
+ return dev;
+ }
+ }
+ return NULL;
+}
+
+static BusState *qbus_find(const char *path)
+{
+ DeviceState *dev;
+ BusState *bus;
+ char elem[128], msg[256];
+ int pos, len;
+
+ /* find start element */
+ if (path[0] == '/') {
+ bus = main_system_bus;
+ pos = 0;
+ } else {
+ if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
+ fprintf(stderr, "path parse error (\"%s\")\n", path);
+ return NULL;
+ }
+ bus = qbus_find_recursive(main_system_bus, elem, NULL);
+ if (!bus) {
+ fprintf(stderr, "bus \"%s\" not found\n", elem);
+ return NULL;
+ }
+ pos = len;
+ }
+
+ for (;;) {
+ if (path[pos] == '\0') {
+ /* we are done */
+ return bus;
+ }
+
+ /* find device */
+ if (sscanf(path+pos, "/%127[^/]%n", elem, &len) != 1) {
+ fprintf(stderr, "path parse error (\"%s\" pos %d)\n", path, pos);
+ return NULL;
+ }
+ pos += len;
+ dev = qbus_find_dev(bus, elem);
+ if (!dev) {
+ qbus_list_dev(bus, msg, sizeof(msg));
+ fprintf(stderr, "device \"%s\" not found\n%s\n", elem, msg);
+ return NULL;
+ }
+ if (path[pos] == '\0') {
+ /* last specified element is a device. If it has exactly
+ * one child bus accept it nevertheless */
+ switch (dev->num_child_bus) {
+ case 0:
+ fprintf(stderr, "device has no child bus (%s)\n", path);
+ return NULL;
+ case 1:
+ return LIST_FIRST(&dev->child_bus);
+ default:
+ qbus_list_bus(dev, msg, sizeof(msg));
+ fprintf(stderr, "device has multiple child busses (%s)\n%s\n",
+ path, msg);
+ return NULL;
+ }
+ }
+
+ /* find bus */
+ if (sscanf(path+pos, "/%127[^/]%n", elem, &len) != 1) {
+ fprintf(stderr, "path parse error (\"%s\" pos %d)\n", path, pos);
+ return NULL;
+ }
+ pos += len;
+ bus = qbus_find_bus(dev, elem);
+ if (!bus) {
+ qbus_list_bus(dev, msg, sizeof(msg));
+ fprintf(stderr, "child bus \"%s\" not found\n%s\n", elem, msg);
+ return NULL;
+ }
+ }
+}
+
BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name)
{
BusState *bus;
+ char *buf;
+ int i,len;
bus = qemu_mallocz(info->size);
bus->info = info;
bus->parent = parent;
- bus->name = qemu_strdup(name);
+
+ if (name) {
+ /* use supplied name */
+ bus->name = qemu_strdup(name);
+ } else if (parent && parent->id) {
+ /* parent device has id -> use it for bus name */
+ len = strlen(parent->id) + 16;
+ buf = qemu_malloc(len);
+ snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
+ bus->name = buf;
+ } else {
+ /* no id -> use lowercase bus type for bus name */
+ len = strlen(info->name) + 16;
+ buf = qemu_malloc(len);
+ len = snprintf(buf, len, "%s.%d", info->name,
+ parent ? parent->num_child_bus : 0);
+ for (i = 0; i < len; i++)
+ buf[i] = tolower(buf[i]);
+ bus->name = buf;
+ }
+
LIST_INIT(&bus->children);
if (parent) {
LIST_INSERT_HEAD(&parent->child_bus, bus, sibling);
+ parent->num_child_bus++;
}
return bus;
}
#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
static void qbus_print(Monitor *mon, BusState *bus, int indent);
+static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
+ const char *prefix, int indent)
+{
+ char buf[64];
+
+ if (!props)
+ return;
+ while (props->name) {
+ if (props->info->print) {
+ props->info->print(dev, props, buf, sizeof(buf));
+ qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
+ }
+ props++;
+ }
+}
+
static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
{
- DeviceProperty *prop;
BusState *child;
- qdev_printf("dev: %s\n", dev->type->info->name);
+ qdev_printf("dev: %s, id \"%s\"\n", dev->info->name,
+ dev->id ? dev->id : "");
indent += 2;
if (dev->num_gpio_in) {
qdev_printf("gpio-in %d\n", dev->num_gpio_in);
if (dev->num_gpio_out) {
qdev_printf("gpio-out %d\n", dev->num_gpio_out);
}
- for (prop = dev->props; prop; prop = prop->next) {
- switch (prop->type) {
- case PROP_TYPE_INT:
- qdev_printf("prop-int %s 0x%" PRIx64 "\n", prop->name,
- prop->value.i);
- break;
- case PROP_TYPE_PTR:
- qdev_printf("prop-ptr %s\n", prop->name);
- break;
- case PROP_TYPE_DEV:
- qdev_printf("prop-dev %s %s\n", prop->name,
- ((DeviceState *)prop->value.ptr)->type->info->name);
- break;
- default:
- qdev_printf("prop-unknown%d %s\n", prop->type, prop->name);
- break;
- }
- }
+ qdev_print_props(mon, dev, dev->info->props, "dev", indent);
+ qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
if (dev->parent_bus->info->print_dev)
dev->parent_bus->info->print_dev(mon, dev, indent);
LIST_FOREACH(child, &dev->child_bus, sibling) {
projects / qemu.git / blobdiff