include/asm-alpha/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 <asm/io.h>
  11
  12 #define VT_BUF_HAVE_RW
  13 #define VT_BUF_HAVE_MEMSETW
  14 #define VT_BUF_HAVE_MEMCPYF
  15
  16 extern inline void scr_writew(u16 val, u16 *addr)
  17 {
  18         if ((long) addr < 0)
  19                 *addr = val;
  20         else
  21                 writew(val, (unsigned long) addr);
  22 }
  23
  24 extern inline u16 scr_readw(const u16 *addr)
  25 {
  26         if ((long) addr < 0)
  27                 return *addr;
  28         else
  29                 return readw((unsigned long) addr);
  30 }
  31
  32 extern inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
  33 {
  34         if ((long)s < 0)
  35                 memsetw(s, c, count);
  36         else
  37                 memsetw_io(s, c, count);
  38 }
  39
  40 extern inline void scr_memcpyw_from(u16 *d, const u16 *s, unsigned int count)
  41 {
  42         memcpy_fromio(d, s, count);
  43 }
  44
  45 extern inline void scr_memcpyw_to(u16 *d, const u16 *s, unsigned int count)
  46 {
  47         memcpy_toio(d, s, count);
  48 }
  49
  50
  51 #define vga_readb readb
  52 #define vga_writeb writeb
  53
  54 #define VGA_MAP_MEM(x) (x)
  55
  56 #endif