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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/vga.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
Diffstat (limited to 'include/asm-alpha/vga.h')
-rw-r--r--include/asm-alpha/vga.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/include/asm-alpha/vga.h b/include/asm-alpha/vga.h
new file mode 100644
index 000000000000..8ca4f6b2da19
--- /dev/null
+++ b/include/asm-alpha/vga.h
@@ -0,0 +1,51 @@
+/*
+ *	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>
+
+#define VT_BUF_HAVE_RW
+#define VT_BUF_HAVE_MEMSETW
+#define VT_BUF_HAVE_MEMCPYW
+
+extern inline void scr_writew(u16 val, volatile u16 *addr)
+{
+	if (__is_ioaddr(addr))
+		__raw_writew(val, (volatile u16 __iomem *) addr);
+	else
+		*addr = val;
+}
+
+extern inline u16 scr_readw(volatile const u16 *addr)
+{
+	if (__is_ioaddr(addr))
+		return __raw_readw((volatile const u16 __iomem *) addr);
+	else
+		return *addr;
+}
+
+extern inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
+{
+	if (__is_ioaddr(s))
+		memsetw_io((u16 __iomem *) s, c, count);
+	else
+		memsetw(s, c, count);
+}
+
+/* Do not trust that the usage will be correct; analyze the arguments.  */
+extern void scr_memcpyw(u16 *d, const u16 *s, unsigned int count);
+
+/* ??? These are currently only used for downloading character sets.  As
+   such, they don't need memory barriers.  Is this all they are intended
+   to be used for?  */
+#define vga_readb(a)	readb((u8 __iomem *)(a))
+#define vga_writeb(v,a)	writeb(v, (u8 __iomem *)(a))
+
+#define VGA_MAP_MEM(x)	((unsigned long) ioremap(x, 0))
+
+#endif