Fix endianess bugs. (c0ec406c) · Commits · 戴 / test

include/asm-mips/vga.h

+25 −0

Original line number	Diff line number	Diff line
		@@ -6,6 +6,8 @@
		#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.
		@@ -16,4 +18,27 @@
		#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.
		*/

		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 */