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authorlinuxppc@jdl.com <linuxppc@jdl.com>2005-09-20 14:32:37 -0500
committerPaul Mackerras <paulus@samba.org>2005-09-21 19:21:09 +1000
commit8b22cc010599075806b84cfe2955ab87ab07172c (patch)
tree56fa6fdd104f5b85f2cac63092149eca248a56e1 /include/asm-powerpc/vga.h
parenta99eb2ef452ce685e40a433ceb187276ba0871f4 (diff)
[PATCH] powerpc: Merge asm-ppc*/vga.h
Merge asm-ppc*/vga.h Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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 00000000000..f8d350aabf1
--- /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_ */