Release 1.0

[palacios.git] / geekos / include / geekos / screen.h

diff --git a/geekos/include/geekos/screen.h b/geekos/include/geekos/screen.h
new file mode 100644 (file)
index 0000000..39133e7
--- /dev/null
+++ b/geekos/include/geekos/screen.h
@@ -0,0 +1,60 @@
+/*
+ * GeekOS text screen output
+ * Copyright (c) 2001,2003 David H. Hovemeyer <daveho@cs.umd.edu>
+ * $Revision: 1.2 $
+ * 
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "COPYING".
+ */
+
+#ifndef GEEKOS_SCREEN_H
+#define GEEKOS_SCREEN_H
+
+#include <geekos/ktypes.h>
+#include <geekos/fmtout.h>
+
+#define BLACK   0
+#define BLUE    1
+#define GREEN   2
+#define CYAN    3
+#define RED     4
+#define MAGENTA 5
+#define AMBER   6
+#define GRAY    7
+#define BRIGHT  8
+#define ATTRIB(bg,fg) ((fg)|((bg)<<4))
+
+#define NUMCOLS 80
+#define NUMROWS 25
+
+#define TABWIDTH 8
+
+#ifdef GEEKOS
+
+/*
+ * VGA hardware stuff, for accessing the text display
+ * memory and controlling the cursor
+ */
+#define VIDMEM_ADDR 0xb8000
+#define VIDMEM ((uchar_t*) VIDMEM_ADDR)
+#define CRT_ADDR_REG 0x3D4
+#define CRT_DATA_REG 0x3D5
+#define CRT_CURSOR_LOC_HIGH_REG 0x0E
+#define CRT_CURSOR_LOC_LOW_REG 0x0F
+
+void Init_Screen(void);
+void Clear_Screen(void);
+void Get_Cursor(int* row, int* col);
+bool Put_Cursor(int row, int col);
+uchar_t Get_Current_Attr(void);
+void Set_Current_Attr(uchar_t attrib);
+void Put_Char(int c);
+void Put_String(const char* s);
+void Put_Buf(const char* buf, ulong_t length);
+void Print(const char* fmt, ...) __attribute__ ((format (printf, 1, 2)));
+void PrintList(const char * fmt, va_list ap);
+
+
+#endif  /* GEEKOS */
+
+#endif  /* GEEKOS_SCREEN_H */