arch/sparc/include/asm/vga.h

   1 /*
   2  *      Access to VGA videoram
   3  *
   4  *      (c) 1998 Martin Mares <mj@ucw.cz>
   5  */
   6
   7 #ifndef _LINUX_ASM_VGA_H_
   8 #define _LINUX_ASM_VGA_H_
   9
  10 #include <linux/bug.h>
  11 #include <linux/string.h>
  12 #include <asm/types.h>
  13
  14 #define VT_BUF_HAVE_RW
  15 #define VT_BUF_HAVE_MEMSETW
  16 #define VT_BUF_HAVE_MEMCPYW
  17 #define VT_BUF_HAVE_MEMMOVEW
  18
  19 #undef scr_writew
  20 #undef scr_readw
  21
  22 static inline void scr_writew(u16 val, u16 *addr)
  23 {
  24         BUG_ON((long) addr >= 0);
  25
  26         *addr = val;
  27 }
  28
  29 static inline u16 scr_readw(const u16 *addr)
  30 {
  31         BUG_ON((long) addr >= 0);
  32
  33         return *addr;
  34 }
  35
  36 static inline void scr_memsetw(u16 *p, u16 v, unsigned int n)
  37 {
  38         BUG_ON((long) p >= 0);
  39
  40         memset16(p, cpu_to_le16(v), n / 2);
  41 }
  42
  43 static inline void scr_memcpyw(u16 *d, u16 *s, unsigned int n)
  44 {
  45         BUG_ON((long) d >= 0);
  46
  47         memcpy(d, s, n);
  48 }
  49
  50 static inline void scr_memmovew(u16 *d, u16 *s, unsigned int n)
  51 {
  52         BUG_ON((long) d >= 0);
  53
  54         memmove(d, s, n);
  55 }
  56
  57 #define VGA_MAP_MEM(x,s) (x)
  58
  59 #endif