1 files changed, 42 insertions, 0 deletions
diff --git a/xenolinux-2.4.24-sparse/include/asm-xeno/vga.h b/xenolinux-2.4.24-sparse/include/asm-xeno/vga.h
new file mode 100644
index 0000000000..d0624cf480
--- /dev/null
+++ b/xenolinux-2.4.24-sparse/include/asm-xeno/vga.h
@@ -0,0 +1,42 @@
+/*
+ *	Access to VGA videoram
+ *
+ *	(c) 1998 Martin Mares <mj@ucw.cz>
+ */
+
+#ifndef _LINUX_ASM_VGA_H_
+#define _LINUX_ASM_VGA_H_
+
+#include <asm/io.h>
+
+extern unsigned char *vgacon_mmap;
+
+static unsigned long VGA_MAP_MEM(unsigned long x)
+{
+    if( vgacon_mmap == NULL )
+    {
+        /* This is our first time in this function. This whole thing
+           is a rather grim hack. We know we're going to get asked 
+           to map a 32KB region between 0xb0000 and 0xb8000 because
+           that's what VGAs are. We used the boot time permanent 
+           fixed map region, and map it to machine pages.
+        */
+        if( x != 0xb8000 )
+            panic("Argghh! VGA Console is weird. 1:%08lx\n",x);
+
+        vgacon_mmap = (unsigned char*) bt_ioremap( 0xa0000, 128*1024 );
+        return (unsigned long) (vgacon_mmap+x-0xa0000);
+    }
+    else
+    {
+        if( x != 0xc0000 && x != 0xa0000 ) /* vidmem_end or charmap fonts */
+            panic("Argghh! VGA Console is weird. 2:%08lx\n",x);  
+	return (unsigned long) (vgacon_mmap+x-0xa0000);
+    }
+    return 0;
+}
+
+static inline unsigned char vga_readb(unsigned char * x) { return (*(x)); }
+static inline void vga_writeb(unsigned char x, unsigned char *y) { *(y) = (x); }
+
+#endif