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backend/drm: scan leases on uevent

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Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3181
This commit is contained in:
Simon Ser 2021-11-03 14:23:00 +01:00 committed by Simon Zeni
parent 6bb8973309
commit e656697a7d
3 changed files with 36 additions and 2 deletions
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7
backend/drm/backend.c
View file

@ -133,12 +133,15 @@ static void handle_dev_change(struct wl_listener *listener, void *data) {
return;
}
// TODO: add and handle lease uevents
switch (change->type) {
case WLR_DEVICE_HOTPLUG:;
case WLR_DEVICE_HOTPLUG:
wlr_log(WLR_DEBUG, "Received hotplug event for %s", drm->name);
scan_drm_connectors(drm, &change->hotplug);
break;
case WLR_DEVICE_LEASE:
wlr_log(WLR_DEBUG, "Received lease event for %s", drm->name);
scan_drm_leases(drm);
break;
default:
wlr_log(WLR_DEBUG, "Received unknown change event for %s", drm->name);
}

30
backend/drm/drm.c
View file

@ -1425,6 +1425,36 @@ void scan_drm_connectors(struct wlr_drm_backend *drm,
}
}
void scan_drm_leases(struct wlr_drm_backend *drm) {
drmModeLesseeListRes *list = drmModeListLessees(drm->fd);
if (list == NULL) {
wlr_log_errno(WLR_ERROR, "drmModeListLessees failed");
return;
}
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->lease == NULL) {
continue;
}
bool found = false;
for (size_t i = 0; i < list->count; i++) {
if (list->lessees[i] == conn->lease->lessee_id) {
found = true;
break;
}
}
if (!found) {
wlr_log(WLR_DEBUG, "DRM lease %"PRIu32" has been terminated",
conn->lease->lessee_id);
drm_lease_destroy(conn->lease);
}
}
drmFree(list);
}
static int mhz_to_nsec(int mhz) {
return 1000000000000LL / mhz;
}

1
include/backend/drm/drm.h
View file

@ -149,6 +149,7 @@ bool init_drm_resources(struct wlr_drm_backend *drm);
void finish_drm_resources(struct wlr_drm_backend *drm);
void scan_drm_connectors(struct wlr_drm_backend *state,
struct wlr_device_hotplug_event *event);
void scan_drm_leases(struct wlr_drm_backend *drm);
int handle_drm_event(int fd, uint32_t mask, void *data);
void destroy_drm_connector(struct wlr_drm_connector *conn);
bool drm_connector_commit_state(struct wlr_drm_connector *conn,