libwidget: Initialize vram/fbdev pointer

Signed-off-by: Ian Moffett <ian@osmora.org>

2 files changed, 26 insertions, 0 deletions

diff --git a/src/lib/libwidget/include/libwidget/core.h b/src/lib/libwidget/include/libwidget/core.h
index 5a5b891..85b33d4 100644
--- a/src/lib/libwidget/include/libwidget/core.h
+++ b/src/lib/libwidget/include/libwidget/core.h
@@ -35,6 +35,10 @@
 /* Forward declarations */
 struct widget;
 
+struct libwidget_state {
+    uint32_t *fbdev;
+};
+
 typedef enum {
     WIDGET_WINDOW,
     MAX_WIDGETS
diff --git a/src/lib/libwidget/src/core/widget_core.c b/src/lib/libwidget/src/core/widget_core.c
index c36d88e..20857ba 100644
--- a/src/lib/libwidget/src/core/widget_core.c
+++ b/src/lib/libwidget/src/core/widget_core.c
@@ -31,12 +31,34 @@
 #include <stdint.h>
 #include <stddef.h>
 #include <string.h>
+#include <sys/mac.h>
 #include <libwidget/window.h>
 #include <libwidget/core.h>
 
 static struct widget backends[];
 
 /*
+ * Initialize lib widget
+ */
+int
+libwidget_init(struct libwidget_state *lwsp)
+{
+    int error;
+
+    if (lwsp == NULL) {
+        return -EINVAL;
+    }
+
+    /* Grab the whole framebuffer, directly mapped */
+    error = cross(BORDER_FBDEV, -1, 0, 0, &lwsp->fbdev);
+    if (error < 0) {
+        return error;
+    }
+
+    return 0;
+}
+
+/*
  * Put the widget into a known state
  */
 int