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 *addr = cpu_to_le16(val); 29 } 30 31 static inline u16 scr_readw(volatile const u16 *addr) 32 { 33 return le16_to_cpu(*addr); 34 } 35 36 #define VT_BUF_HAVE_MEMSETW 37 static inline void scr_memsetw(u16 *s, u16 v, unsigned int n) 38 { 39 memset16(s, cpu_to_le16(v), n / 2); 40 } 41 42 #define VT_BUF_HAVE_MEMCPYW 43 #define VT_BUF_HAVE_MEMMOVEW 44 #define scr_memcpyw memcpy 45 #define scr_memmovew memmove 46 47 #endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */ 48 49 #ifdef __powerpc64__ 50 #define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s)) 51 #else 52 #define VGA_MAP_MEM(x,s) (x) 53 #endif 54 55 #define vga_readb(x) (*(x)) 56 #define vga_writeb(x,y) (*(y) = (x)) 57 58 #endif /* __KERNEL__ */ 59 #endif /* _ASM_POWERPC_VGA_H_ */ 60