1#ifndef _ASM_POWERPC_VGA_H_ 2#define _ASM_POWERPC_VGA_H_ 3 4#ifdef __KERNEL__ 5 6/* 7 * Access to VGA videoram 8 * 9 * (c) 1998 Martin Mares <mj@ucw.cz> 10 */ 11 12 13#include <asm/io.h> 14 15 16#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE) 17 18#define VT_BUF_HAVE_RW 19/* 20 * These are only needed for supporting VGA or MDA text mode, which use little 21 * endian byte ordering. 22 * In other cases, we can optimize by using native byte ordering and 23 * <linux/vt_buffer.h> has already done the right job for us. 24 */ 25 26static inline void scr_writew(u16 val, volatile u16 *addr) 27{ 28 *addr = cpu_to_le16(val); 29} 30 31static inline u16 scr_readw(volatile const u16 *addr) 32{ 33 return le16_to_cpu(*addr); 34} 35 36#define VT_BUF_HAVE_MEMCPYW 37#define scr_memcpyw memcpy 38 39#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ 40 41#ifdef __powerpc64__ 42#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) 43#else 44#define VGA_MAP_MEM(x,s) (x) 45#endif 46 47#define vga_readb(x) (*(x)) 48#define vga_writeb(x,y) (*(y) = (x)) 49 50#endif /* __KERNEL__ */ 51#endif /* _ASM_POWERPC_VGA_H_ */ 52