X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd-terminal%2Fgrdev.c;h=bb89ee7170c9cc9ac886870009f8abcd6a461bdb;hb=a3eabec96b872bbf581c9bfa81ecc9c2819b8de8;hp=ab1c407ecb7a3f40aa5d0c901886499e269cf362;hpb=650c5444273993f969b9cd7df9add6ab2df0414e;p=elogind.git

diff --git a/src/libsystemd-terminal/grdev.c b/src/libsystemd-terminal/grdev.c
index ab1c407ec..bb89ee717 100644
--- a/src/libsystemd-terminal/grdev.c
+++ b/src/libsystemd-terminal/grdev.c
@@ -20,6 +20,7 @@
 ***/
 
 #include <inttypes.h>
+#include <libudev.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include <systemd/sd-bus.h>
@@ -30,6 +31,7 @@
 #include "hashmap.h"
 #include "login-shared.h"
 #include "macro.h"
+#include "udev-util.h"
 #include "util.h"
 
 static void pipe_enable(grdev_pipe *pipe);
@@ -1083,6 +1085,74 @@ void grdev_session_restore(grdev_session *session) {
                         card->vtable->restore(card);
 }
 
+void grdev_session_add_drm(grdev_session *session, struct udev_device *ud) {
+        grdev_card *card;
+        dev_t devnum;
+        int r;
+
+        assert(session);
+        assert(ud);
+
+        devnum = udev_device_get_devnum(ud);
+        if (devnum == 0)
+                return grdev_session_hotplug_drm(session, ud);
+
+        card = grdev_find_drm_card(session, devnum);
+        if (card)
+                return;
+
+        r = grdev_drm_card_new(&card, session, ud);
+        if (r < 0) {
+                log_debug("grdev: %s: cannot add DRM device for %s: %s",
+                          session->name, udev_device_get_syspath(ud), strerror(-r));
+                return;
+        }
+
+        session_add_card(session, card);
+}
+
+void grdev_session_remove_drm(grdev_session *session, struct udev_device *ud) {
+        grdev_card *card;
+        dev_t devnum;
+
+        assert(session);
+        assert(ud);
+
+        devnum = udev_device_get_devnum(ud);
+        if (devnum == 0)
+                return grdev_session_hotplug_drm(session, ud);
+
+        card = grdev_find_drm_card(session, devnum);
+        if (!card)
+                return;
+
+        session_remove_card(session, card);
+}
+
+void grdev_session_hotplug_drm(grdev_session *session, struct udev_device *ud) {
+        grdev_card *card = NULL;
+        struct udev_device *p;
+        dev_t devnum;
+
+        assert(session);
+        assert(ud);
+
+        for (p = ud; p; p = udev_device_get_parent_with_subsystem_devtype(p, "drm", NULL)) {
+                devnum = udev_device_get_devnum(ud);
+                if (devnum == 0)
+                        continue;
+
+                card = grdev_find_drm_card(session, devnum);
+                if (card)
+                        break;
+        }
+
+        if (!card)
+                return;
+
+        /* TODO: hotplug card */
+}
+
 static void session_configure(grdev_session *session) {
         grdev_display *display;
         grdev_tile *tile;