1 files changed, 56 insertions, 0 deletions
diff --git a/monitor-get-edid-using-vbe.c b/monitor-get-edid-using-vbe.c
new file mode 100644
index 0000000..50366f2
--- /dev/null
+++ b/monitor-get-edid-using-vbe.c
@@ -0,0 +1,56 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <sys/ioctl.h>
+#include <sys/vt.h>
+#include "get-edid.h"
+
+int verbose = 0;
+
+int main(int argc, char **argv)
+{
+  char edid[256];
+  int try_in_console = 0;
+  int i;
+
+  for (i = 1; i < argc; i++)
+    if (strcmp(argv[i], "-v") == 0) verbose = 1;
+    else if (strcmp(argv[i], "--try-in-console") == 0) try_in_console = 1;
+    else if (strcmp(argv[i], "-h") == 0 ||
+	     strcmp(argv[i], "--help") == 0) {
+      printf("usage: monitor-get-edid [-v]\n");
+      exit(1);
+    }
+
+  int size = get_edid(edid);
+
+  if (!size && try_in_console) {
+    int non_X_console = 1;
+    int first_X_console = 7;
+    struct vt_stat current;
+    int fd = open("/dev/console", O_RDWR);
+
+    if (ioctl(fd, VT_GETSTATE, &current) == 0 && 
+	current.v_state >= first_X_console &&
+	ioctl(fd, VT_ACTIVATE, non_X_console) == 0 &&
+	ioctl(fd, VT_WAITACTIVE, non_X_console) == 0) {
+      /* retrying */
+      size = get_edid(edid);
+
+      /* restore */
+      ioctl(fd, VT_ACTIVATE, current.v_active) == 0 &&
+	ioctl(fd, VT_WAITACTIVE, current.v_active) == 0;
+    }
+    close(fd);
+  }
+
+  if (size) write(1, edid, size);
+
+  return size ? 0 : 1;
+}