diff options
Diffstat (limited to 'backend/drm/drm.c')
| -rw-r--r-- | backend/drm/drm.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 884a6274..e9842bb3 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -1262,6 +1262,15 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) { get_drm_connector_props(drm->fd, wlr_conn->id, &wlr_conn->props); + uint64_t non_desktop; + if (get_drm_prop(drm->fd, wlr_conn->id, + wlr_conn->props.non_desktop, &non_desktop)) { + if (non_desktop == 1) { + wlr_log(WLR_INFO, "Non-desktop connector"); + } + wlr_conn->output.non_desktop = non_desktop; + } + size_t edid_len = 0; uint8_t *edid = get_drm_prop_blob(drm->fd, wlr_conn->id, wlr_conn->props.edid, &edid_len); @@ -1469,3 +1478,101 @@ void destroy_drm_connector(struct wlr_drm_connector *conn) { wl_list_remove(&conn->link); free(conn); } + +/* TODO: make the function return a `wlr_drm_lease` to provide a destroy event + * that can be fired when the kernel notifies us through uevent that the lease + * has been destroyed + */ +int wlr_drm_create_lease(struct wlr_output **outputs, size_t n_outputs, + uint32_t *lessee_id) { + assert(outputs); + + if (n_outputs == 0) { + wlr_log(WLR_ERROR, "Can't lease 0 outputs"); + return -1; + } + + struct wlr_drm_backend *drm = + get_drm_backend_from_backend(outputs[0]->backend); + + int n_objects = 0; + uint32_t objects[4 * n_outputs + 1]; + for (size_t i = 0; i < n_outputs; ++i) { + struct wlr_drm_connector *conn = + get_drm_connector_from_output(outputs[i]); + assert(conn->lessee_id == 0); + + if (conn->backend != drm) { + wlr_log(WLR_ERROR, "Can't lease output from different backends"); + return -1; + } + + objects[n_objects++] = conn->id; + wlr_log(WLR_DEBUG, "Connector %d", conn->id); + + if (!conn->crtc) { + wlr_log(WLR_ERROR, "Connector has no CRTC"); + return -1; + } + + objects[n_objects++] = conn->crtc->id; + wlr_log(WLR_DEBUG, "CRTC %d", conn->crtc->id); + + objects[n_objects++] = conn->crtc->primary->id; + wlr_log(WLR_DEBUG, "Primary plane %d", conn->crtc->primary->id); + + if (conn->crtc->cursor) { + wlr_log(WLR_DEBUG, "Cursor plane %d", conn->crtc->cursor->id); + objects[n_objects++] = conn->crtc->cursor->id; + } + } + + assert(n_objects != 0); + + wlr_log(WLR_DEBUG, "Issuing DRM lease with the %d objects", n_objects); + int lease_fd = drmModeCreateLease(drm->fd, objects, n_objects, 0, + lessee_id); + if (lease_fd < 0) { + return lease_fd; + } + + wlr_log(WLR_DEBUG, "Issued DRM lease %"PRIu32, *lessee_id); + for (size_t i = 0; i < n_outputs; ++i) { + struct wlr_drm_connector *conn = + get_drm_connector_from_output(outputs[i]); + conn->lessee_id = *lessee_id; + conn->crtc->lessee_id = *lessee_id; + } + + return lease_fd; +} + +bool wlr_drm_backend_terminate_lease(struct wlr_backend *backend, + uint32_t lessee_id) { + wlr_log(WLR_DEBUG, "Terminating DRM lease %d", lessee_id); + + assert(backend); + struct wlr_drm_backend *drm = get_drm_backend_from_backend(backend); + + int r = drmModeRevokeLease(drm->fd, lessee_id); + if (r < 0) { + wlr_log_errno(WLR_DEBUG, "Failed to terminate lease"); + } + + struct wlr_drm_connector *conn; + wl_list_for_each(conn, &drm->outputs, link) { + if (conn->lessee_id == lessee_id) { + conn->lessee_id = 0; + /* Will be re-initialized in scan_drm_connectors */ + } + } + + for (size_t i = 0; i < drm->num_crtcs; ++i) { + if (drm->crtcs[i].lessee_id == lessee_id) { + drm->crtcs[i].lessee_id = 0; + } + } + + return r >= 0; +} + |