diff options
Diffstat (limited to 'hw/qdev.c')
| -rw-r--r-- | hw/qdev.c | 491 |
1 files changed, 17 insertions, 474 deletions
@@ -222,6 +222,7 @@ void qbus_reset_all_fn(void *opaque) int qdev_simple_unplug_cb(DeviceState *dev) { /* just zap it */ + object_unparent(OBJECT(dev)); qdev_free(dev); return 0; } @@ -243,46 +244,6 @@ void qdev_init_nofail(DeviceState *dev) } } -static void qdev_property_del_all(DeviceState *dev) -{ - while (!QTAILQ_EMPTY(&dev->properties)) { - DeviceProperty *prop = QTAILQ_FIRST(&dev->properties); - - QTAILQ_REMOVE(&dev->properties, prop, node); - - if (prop->release) { - prop->release(dev, prop->name, prop->opaque); - } - - g_free(prop->name); - g_free(prop->type); - g_free(prop); - } -} - -static void qdev_property_del_child(DeviceState *dev, DeviceState *child, Error **errp) -{ - DeviceProperty *prop; - - QTAILQ_FOREACH(prop, &dev->properties, node) { - if (strstart(prop->type, "child<", NULL) && prop->opaque == child) { - break; - } - } - - g_assert(prop != NULL); - - QTAILQ_REMOVE(&dev->properties, prop, node); - - if (prop->release) { - prop->release(dev, prop->name, prop->opaque); - } - - g_free(prop->name); - g_free(prop->type); - g_free(prop); -} - /* Unlink device from bus and free the structure. */ void qdev_free(DeviceState *dev) { @@ -290,8 +251,6 @@ void qdev_free(DeviceState *dev) Property *prop; DeviceClass *dc = DEVICE_GET_CLASS(dev); - qdev_property_del_all(dev); - if (dev->state == DEV_STATE_INITIALIZED) { while (dev->num_child_bus) { bus = QLIST_FIRST(&dev->child_bus); @@ -313,12 +272,6 @@ void qdev_free(DeviceState *dev) prop->info->free(dev, prop); } } - if (dev->parent) { - qdev_property_del_child(dev->parent, dev, NULL); - } - if (dev->ref != 0) { - qerror_report(QERR_DEVICE_IN_USE, dev->id?:""); - } object_delete(OBJECT(dev)); } @@ -569,106 +522,19 @@ char* qdev_get_fw_dev_path(DeviceState *dev) return strdup(path); } -char *qdev_get_type(DeviceState *dev, Error **errp) -{ - return g_strdup(object_get_typename(OBJECT(dev))); -} - -void qdev_ref(DeviceState *dev) +static char *qdev_get_type(Object *obj, Error **errp) { - dev->ref++; -} - -void qdev_unref(DeviceState *dev) -{ - g_assert(dev->ref > 0); - dev->ref--; -} - -void qdev_property_add(DeviceState *dev, const char *name, const char *type, - DevicePropertyAccessor *get, DevicePropertyAccessor *set, - DevicePropertyRelease *release, - void *opaque, Error **errp) -{ - DeviceProperty *prop = g_malloc0(sizeof(*prop)); - - prop->name = g_strdup(name); - prop->type = g_strdup(type); - - prop->get = get; - prop->set = set; - prop->release = release; - prop->opaque = opaque; - - QTAILQ_INSERT_TAIL(&dev->properties, prop, node); -} - -static DeviceProperty *qdev_property_find(DeviceState *dev, const char *name) -{ - DeviceProperty *prop; - - QTAILQ_FOREACH(prop, &dev->properties, node) { - if (strcmp(prop->name, name) == 0) { - return prop; - } - } - - return NULL; -} - -void qdev_property_get(DeviceState *dev, Visitor *v, const char *name, - Error **errp) -{ - DeviceProperty *prop = qdev_property_find(dev, name); - - if (prop == NULL) { - error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); - return; - } - - if (!prop->get) { - error_set(errp, QERR_PERMISSION_DENIED); - } else { - prop->get(dev, v, prop->opaque, name, errp); - } -} - -void qdev_property_set(DeviceState *dev, Visitor *v, const char *name, - Error **errp) -{ - DeviceProperty *prop = qdev_property_find(dev, name); - - if (prop == NULL) { - error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); - return; - } - - if (!prop->set) { - error_set(errp, QERR_PERMISSION_DENIED); - } else { - prop->set(dev, v, prop->opaque, name, errp); - } -} - -const char *qdev_property_get_type(DeviceState *dev, const char *name, Error **errp) -{ - DeviceProperty *prop = qdev_property_find(dev, name); - - if (prop == NULL) { - error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); - return NULL; - } - - return prop->type; + return g_strdup(object_get_typename(obj)); } /** * Legacy property handling */ -static void qdev_get_legacy_property(DeviceState *dev, Visitor *v, void *opaque, +static void qdev_get_legacy_property(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { + DeviceState *dev = DEVICE(obj); Property *prop = opaque; char buffer[1024]; @@ -678,9 +544,10 @@ static void qdev_get_legacy_property(DeviceState *dev, Visitor *v, void *opaque, visit_type_str(v, &ptr, name, errp); } -static void qdev_set_legacy_property(DeviceState *dev, Visitor *v, void *opaque, +static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { + DeviceState *dev = DEVICE(obj); Property *prop = opaque; Error *local_err = NULL; char *ptr = NULL; @@ -720,11 +587,11 @@ void qdev_property_add_legacy(DeviceState *dev, Property *prop, type = g_strdup_printf("legacy<%s>", prop->info->legacy_name ?: prop->info->name); - qdev_property_add(dev, name, type, - prop->info->print ? qdev_get_legacy_property : NULL, - prop->info->parse ? qdev_set_legacy_property : NULL, - NULL, - prop, errp); + object_property_add(OBJECT(dev), name, type, + prop->info->print ? qdev_get_legacy_property : NULL, + prop->info->parse ? qdev_set_legacy_property : NULL, + NULL, + prop, errp); g_free(type); g_free(name); @@ -739,333 +606,10 @@ void qdev_property_add_legacy(DeviceState *dev, Property *prop, void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp) { - qdev_property_add(dev, prop->name, prop->info->name, - prop->info->get, prop->info->set, - NULL, - prop, errp); -} - -DeviceState *qdev_get_root(void) -{ - static DeviceState *qdev_root; - - if (!qdev_root) { - qdev_root = qdev_create(NULL, "container"); - qdev_init_nofail(qdev_root); - } - - return qdev_root; -} - -static void qdev_get_child_property(DeviceState *dev, Visitor *v, void *opaque, - const char *name, Error **errp) -{ - DeviceState *child = opaque; - gchar *path; - - path = qdev_get_canonical_path(child); - visit_type_str(v, &path, name, errp); - g_free(path); -} - -static void qdev_release_child_property(DeviceState *dev, const char *name, - void *opaque) -{ - DeviceState *child = opaque; - - qdev_unref(child); -} - -void qdev_property_add_child(DeviceState *dev, const char *name, - DeviceState *child, Error **errp) -{ - gchar *type; - - type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); - - qdev_property_add(dev, name, type, qdev_get_child_property, - NULL, qdev_release_child_property, - child, errp); - - qdev_ref(child); - g_assert(child->parent == NULL); - child->parent = dev; - - g_free(type); -} - -static void qdev_get_link_property(DeviceState *dev, Visitor *v, void *opaque, - const char *name, Error **errp) -{ - DeviceState **child = opaque; - gchar *path; - - if (*child) { - path = qdev_get_canonical_path(*child); - visit_type_str(v, &path, name, errp); - g_free(path); - } else { - path = (gchar *)""; - visit_type_str(v, &path, name, errp); - } -} - -static void qdev_set_link_property(DeviceState *dev, Visitor *v, void *opaque, - const char *name, Error **errp) -{ - DeviceState **child = opaque; - bool ambiguous = false; - const char *type; - char *path; - - type = qdev_property_get_type(dev, name, NULL); - - visit_type_str(v, &path, name, errp); - - if (*child) { - qdev_unref(*child); - } - - if (strcmp(path, "") != 0) { - DeviceState *target; - - target = qdev_resolve_path(path, &ambiguous); - if (target) { - gchar *target_type; - - target_type = g_strdup_printf("link<%s>", object_get_typename(OBJECT(target))); - if (strcmp(target_type, type) == 0) { - *child = target; - qdev_ref(target); - } else { - error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, type); - } - - g_free(target_type); - } else { - error_set(errp, QERR_DEVICE_NOT_FOUND, path); - } - } else { - *child = NULL; - } - - g_free(path); -} - -void qdev_property_add_link(DeviceState *dev, const char *name, - const char *type, DeviceState **child, - Error **errp) -{ - gchar *full_type; - - full_type = g_strdup_printf("link<%s>", type); - - qdev_property_add(dev, name, full_type, - qdev_get_link_property, - qdev_set_link_property, - NULL, child, errp); - - g_free(full_type); -} - -gchar *qdev_get_canonical_path(DeviceState *dev) -{ - DeviceState *root = qdev_get_root(); - char *newpath = NULL, *path = NULL; - - while (dev != root) { - DeviceProperty *prop = NULL; - - g_assert(dev->parent != NULL); - - QTAILQ_FOREACH(prop, &dev->parent->properties, node) { - if (!strstart(prop->type, "child<", NULL)) { - continue; - } - - if (prop->opaque == dev) { - if (path) { - newpath = g_strdup_printf("%s/%s", prop->name, path); - g_free(path); - path = newpath; - } else { - path = g_strdup(prop->name); - } - break; - } - } - - g_assert(prop != NULL); - - dev = dev->parent; - } - - newpath = g_strdup_printf("/%s", path); - g_free(path); - - return newpath; -} - -static DeviceState *qdev_resolve_abs_path(DeviceState *parent, - gchar **parts, - int index) -{ - DeviceProperty *prop; - DeviceState *child; - - if (parts[index] == NULL) { - return parent; - } - - if (strcmp(parts[index], "") == 0) { - return qdev_resolve_abs_path(parent, parts, index + 1); - } - - prop = qdev_property_find(parent, parts[index]); - if (prop == NULL) { - return NULL; - } - - child = NULL; - if (strstart(prop->type, "link<", NULL)) { - DeviceState **pchild = prop->opaque; - if (*pchild) { - child = *pchild; - } - } else if (strstart(prop->type, "child<", NULL)) { - child = prop->opaque; - } - - if (!child) { - return NULL; - } - - return qdev_resolve_abs_path(child, parts, index + 1); -} - -static DeviceState *qdev_resolve_partial_path(DeviceState *parent, - gchar **parts, - bool *ambiguous) -{ - DeviceState *dev; - DeviceProperty *prop; - - dev = qdev_resolve_abs_path(parent, parts, 0); - - QTAILQ_FOREACH(prop, &parent->properties, node) { - DeviceState *found; - - if (!strstart(prop->type, "child<", NULL)) { - continue; - } - - found = qdev_resolve_partial_path(prop->opaque, parts, ambiguous); - if (found) { - if (dev) { - if (ambiguous) { - *ambiguous = true; - } - return NULL; - } - dev = found; - } - - if (ambiguous && *ambiguous) { - return NULL; - } - } - - return dev; -} - -DeviceState *qdev_resolve_path(const char *path, bool *ambiguous) -{ - bool partial_path = true; - DeviceState *dev; - gchar **parts; - - parts = g_strsplit(path, "/", 0); - if (parts == NULL || parts[0] == NULL) { - g_strfreev(parts); - return qdev_get_root(); - } - - if (strcmp(parts[0], "") == 0) { - partial_path = false; - } - - if (partial_path) { - if (ambiguous) { - *ambiguous = false; - } - dev = qdev_resolve_partial_path(qdev_get_root(), parts, ambiguous); - } else { - dev = qdev_resolve_abs_path(qdev_get_root(), parts, 1); - } - - g_strfreev(parts); - - return dev; -} - -typedef struct StringProperty -{ - char *(*get)(DeviceState *, Error **); - void (*set)(DeviceState *, const char *, Error **); -} StringProperty; - -static void qdev_property_get_str(DeviceState *dev, Visitor *v, void *opaque, - const char *name, Error **errp) -{ - StringProperty *prop = opaque; - char *value; - - value = prop->get(dev, errp); - if (value) { - visit_type_str(v, &value, name, errp); - g_free(value); - } -} - -static void qdev_property_set_str(DeviceState *dev, Visitor *v, void *opaque, - const char *name, Error **errp) -{ - StringProperty *prop = opaque; - char *value; - Error *local_err = NULL; - - visit_type_str(v, &value, name, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - - prop->set(dev, value, errp); - g_free(value); -} - -static void qdev_property_release_str(DeviceState *dev, const char *name, - void *opaque) -{ - StringProperty *prop = opaque; - g_free(prop); -} - -void qdev_property_add_str(DeviceState *dev, const char *name, - char *(*get)(DeviceState *, Error **), - void (*set)(DeviceState *, const char *, Error **), - Error **errp) -{ - StringProperty *prop = g_malloc0(sizeof(*prop)); - - prop->get = get; - prop->set = set; - - qdev_property_add(dev, name, "string", - get ? qdev_property_get_str : NULL, - set ? qdev_property_set_str : NULL, - qdev_property_release_str, - prop, errp); + object_property_add(OBJECT(dev), prop->name, prop->info->name, + prop->info->get, prop->info->set, + NULL, + prop, errp); } static void device_initfn(Object *obj) @@ -1079,7 +623,6 @@ static void device_initfn(Object *obj) } dev->instance_id_alias = -1; - QTAILQ_INIT(&dev->properties); dev->state = DEV_STATE_CREATED; qdev_prop_set_defaults(dev, qdev_get_props(dev)); @@ -1088,7 +631,7 @@ static void device_initfn(Object *obj) qdev_property_add_static(dev, prop, NULL); } - qdev_property_add_str(dev, "type", qdev_get_type, NULL, NULL); + object_property_add_str(OBJECT(dev), "type", qdev_get_type, NULL, NULL); } void device_reset(DeviceState *dev) |