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 26 static inline void scr_writew(u16 val, volatile u16 *addr) 27 { 28 st_le16(addr, val); 29 } 30 31 static inline u16 scr_readw(volatile const u16 *addr) 32 { 33 return ld_le16(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 extern unsigned long vgacon_remap_base; 42 43 #ifdef __powerpc64__ 44 #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) 45 #else 46 #define VGA_MAP_MEM(x,s) (x + vgacon_remap_base) 47 #endif 48 49 #define vga_readb(x) (*(x)) 50 #define vga_writeb(x,y) (*(y) = (x)) 51 52 #endif /* __KERNEL__ */ 53 #endif /* _ASM_POWERPC_VGA_H_ */ 54