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authorDavid S. Miller <davem@davemloft.net>2008-10-11 12:39:35 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-11 12:39:35 -0700
commit56c5d900dbb8e042bfad035d18433476931d8f93 (patch)
tree00b793965beeef10db03e0ff021d2d965c410759 /arch/mips/include/asm/vga.h
parent4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff)
parentead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff)
downloadop-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.zip
op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: sound/core/memalloc.c
Diffstat (limited to 'arch/mips/include/asm/vga.h')
-rw-r--r--arch/mips/include/asm/vga.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h
new file mode 100644
index 0000000..f4cff7e
--- /dev/null
+++ b/arch/mips/include/asm/vga.h
@@ -0,0 +1,47 @@
+/*
+ * Access to VGA videoram
+ *
+ * (c) 1998 Martin Mares <mj@ucw.cz>
+ */
+#ifndef _ASM_VGA_H
+#define _ASM_VGA_H
+
+#include <asm/byteorder.h>
+
+/*
+ * On the PC, we can just recalculate addresses and then
+ * access the videoram directly without any black magic.
+ */
+
+#define VGA_MAP_MEM(x, s) (0xb0000000L + (unsigned long)(x))
+
+#define vga_readb(x) (*(x))
+#define vga_writeb(x, y) (*(y) = (x))
+
+#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.
+ */
+
+#undef scr_writew
+#undef scr_readw
+
+static inline void scr_writew(u16 val, volatile u16 *addr)
+{
+ *addr = cpu_to_le16(val);
+}
+
+static inline u16 scr_readw(volatile const u16 *addr)
+{
+ return le16_to_cpu(*addr);
+}
+
+#define scr_memcpyw(d, s, c) memcpy(d, s, c)
+#define scr_memmovew(d, s, c) memmove(d, s, c)
+#define VT_BUF_HAVE_MEMCPYW
+#define VT_BUF_HAVE_MEMMOVEW
+
+#endif /* _ASM_VGA_H */
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