static int
udev_drm_event(int fd, uint32_t mask, void *data)
{
struct drm_backend *b = data;
struct udev_device *event;
uint32_t conn_id, prop_id;
event = udev_monitor_receive_device(b->udev_monitor);
if (udev_event_is_hotplug(b, event)) {
if (udev_event_is_conn_prop_change(b, event, &conn_id, &prop_id))
drm_backend_update_conn_props(b, conn_id, prop_id);
else
drm_backend_update_heads(b, event);
}
udev_device_unref(event);
return 1;
}
static void
drm_backend_update_heads(struct drm_backend *b, struct udev_device *drm_device)
{
/* collect new connectors that have appeared, e.g. MST */
for (i = 0; i < resources->count_connectors; i++) {
uint32_t connector_id = resources->connectors[i];
head = drm_head_find_by_connector(b, connector_id);
if (head) {
drm_head_update_info(head);
} else {
head = drm_head_create(b, connector_id, drm_device);
if (!head)
weston_log("DRM: failed to create head for hot-added connector %d.\n",
connector_id);
}
}
}
static void
drm_head_update_info(struct drm_head *head)
{
drmModeConnector *connector;
connector = drmModeGetConnector(head->backend->drm.fd,
head->connector_id);
if (!connector) {
weston_log("DRM: getting connector info for '%s' failed.\n",
head->base.name);
return;
}
if (drm_head_assign_connector_info(head, connector) < 0)
drmModeFreeConnector(connector);
if (head->base.device_changed)
drm_head_log_info(head, "updated");
}
static void
drm_head_log_info(struct drm_head *head, const char *msg)
{
if (head->base.connected) {
weston_log("DRM: head '%s' %s, connector %d is connected, "
"EDID make '%s', model '%s', serial '%s'\n",
head->base.name, msg, head->connector_id,
head->base.make, head->base.model,
head->base.serial_number ?: "");
} else {
weston_log("DRM: head '%s' %s, connector %d is disconnected.\n",
head->base.name, msg, head->connector_id);
}
} |
