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authorAnton Altaparmakov <aia21@cantab.net>2005-10-31 10:06:46 +0000
committerAnton Altaparmakov <aia21@cantab.net>2005-10-31 10:06:46 +0000
commit1f04c0a24b2f3cfe89c802a24396263623e3512d (patch)
treed7e2216b6e65b833c0c2b79b478d13ce17dbf296 /include/asm-powerpc/vga.h
parent07b188ab773e183871e57b33ae37bf635c9f12ba (diff)
parente2f2e58e7968f8446b1078a20a18bf8ea12b4fbc (diff)
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Merge branch 'master' of /usr/src/ntfs-2.6/
Diffstat (limited to 'include/asm-powerpc/vga.h')
-rw-r--r--include/asm-powerpc/vga.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-powerpc/vga.h b/include/asm-powerpc/vga.h
new file mode 100644
index 0000000..f8d350a
--- /dev/null
+++ b/include/asm-powerpc/vga.h
@@ -0,0 +1,54 @@
+#ifndef _ASM_POWERPC_VGA_H_
+#define _ASM_POWERPC_VGA_H_
+
+#ifdef __KERNEL__
+
+/*
+ * Access to VGA videoram
+ *
+ * (c) 1998 Martin Mares <mj@ucw.cz>
+ */
+
+
+#include <asm/io.h>
+
+#include <linux/config.h>
+
+#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
+
+#define VT_BUF_HAVE_RW
+/*
+ * These are only needed for supporting VGA or MDA text mode, which use little
+ * endian byte ordering.
+ * In other cases, we can optimize by using native byte ordering and
+ * <linux/vt_buffer.h> has already done the right job for us.
+ */
+
+static inline void scr_writew(u16 val, volatile u16 *addr)
+{
+ st_le16(addr, val);
+}
+
+static inline u16 scr_readw(volatile const u16 *addr)
+{
+ return ld_le16(addr);
+}
+
+#define VT_BUF_HAVE_MEMCPYW
+#define scr_memcpyw memcpy
+
+#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
+
+extern unsigned long vgacon_remap_base;
+
+#ifdef __powerpc64__
+#define VGA_MAP_MEM(x) ((unsigned long) ioremap((x), 0))
+#else
+#define VGA_MAP_MEM(x) (x + vgacon_remap_base)
+#endif
+
+#define vga_readb(x) (*(x))
+#define vga_writeb(x,y) (*(y) = (x))
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_VGA_H_ */