Merge pull request #1280 from emersion/drm-link-status
backend/drm: add support for the link-status property
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commit
885586a831
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@ -104,7 +104,8 @@ static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
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drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
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}
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if (drmModeCreatePropertyBlob(drm->fd, mode, sizeof(*mode), &crtc->mode_id)) {
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if (drmModeCreatePropertyBlob(drm->fd, mode, sizeof(*mode),
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&crtc->mode_id)) {
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wlr_log_errno(WLR_ERROR, "Unable to create property blob");
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return false;
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}
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@ -120,6 +121,10 @@ static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
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struct atomic atom;
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atomic_begin(crtc, &atom);
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atomic_add(&atom, conn->id, conn->props.crtc_id, crtc->id);
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if (mode != NULL && conn->props.link_status != 0) {
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atomic_add(&atom, conn->id, conn->props.link_status,
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DRM_MODE_LINK_STATUS_GOOD);
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}
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atomic_add(&atom, crtc->id, crtc->props.mode_id, crtc->mode_id);
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atomic_add(&atom, crtc->id, crtc->props.active, 1);
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set_plane_props(&atom, crtc->primary, crtc->id, fb_id, true);
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@ -1083,6 +1083,24 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
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wlr_conn->crtc = NULL;
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}
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// This can only happen *after* hotplug, since we haven't read the
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// connector properties yet
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if (wlr_conn->props.link_status != 0) {
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uint64_t link_status;
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if (!get_drm_prop(drm->fd, wlr_conn->id,
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wlr_conn->props.link_status, &link_status)) {
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wlr_log(WLR_ERROR, "Failed to get link status for '%s'",
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wlr_conn->output.name);
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continue;
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}
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if (link_status == DRM_MODE_LINK_STATUS_BAD) {
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// We need to reload our list of modes and force a modeset
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wlr_log(WLR_INFO, "Bad link for '%s'", wlr_conn->output.name);
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drm_connector_cleanup(wlr_conn);
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}
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}
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if (wlr_conn->state == WLR_DRM_CONN_DISCONNECTED &&
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drm_conn->connection == DRM_MODE_CONNECTED) {
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wlr_log(WLR_INFO, "'%s' connected", wlr_conn->output.name);
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@ -22,6 +22,7 @@ static const struct prop_info connector_info[] = {
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{ "CRTC_ID", INDEX(crtc_id) },
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{ "DPMS", INDEX(dpms) },
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{ "EDID", INDEX(edid) },
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{ "link-status", INDEX(link_status) },
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#undef INDEX
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};
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@ -87,7 +88,8 @@ static bool scan_properties(int fd, uint32_t id, uint32_t type, uint32_t *result
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return true;
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}
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bool get_drm_connector_props(int fd, uint32_t id, union wlr_drm_connector_props *out) {
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bool get_drm_connector_props(int fd, uint32_t id,
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union wlr_drm_connector_props *out) {
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return scan_properties(fd, id, DRM_MODE_OBJECT_CONNECTOR, out->props,
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connector_info, sizeof(connector_info) / sizeof(connector_info[0]));
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}
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@ -103,7 +105,8 @@ bool get_drm_plane_props(int fd, uint32_t id, union wlr_drm_plane_props *out) {
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}
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bool get_drm_prop(int fd, uint32_t obj, uint32_t prop, uint64_t *ret) {
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drmModeObjectProperties *props = drmModeObjectGetProperties(fd, obj, DRM_MODE_OBJECT_ANY);
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drmModeObjectProperties *props =
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drmModeObjectGetProperties(fd, obj, DRM_MODE_OBJECT_ANY);
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if (!props) {
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return false;
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}
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@ -14,12 +14,13 @@ union wlr_drm_connector_props {
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struct {
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uint32_t edid;
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uint32_t dpms;
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uint32_t link_status; // not guaranteed to exist
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// atomic-modesetting only
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uint32_t crtc_id;
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};
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uint32_t props[3];
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uint32_t props[4];
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};
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union wlr_drm_crtc_props {
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