arch/sparc/include/asm/vga.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *      Access to VGA videoram
   4  *
   5  *      (c) 1998 Martin Mares <mj@ucw.cz>
   6  */
   7
   8 #ifndef _LINUX_ASM_VGA_H_
   9 #define _LINUX_ASM_VGA_H_
  10
  11 #include <linux/bug.h>
  12 #include <linux/string.h>
  13 #include <asm/types.h>
  14
  15 #define VT_BUF_HAVE_RW
  16 #define VT_BUF_HAVE_MEMSETW
  17 #define VT_BUF_HAVE_MEMCPYW
  18 #define VT_BUF_HAVE_MEMMOVEW
  19
  20 #undef scr_writew
  21 #undef scr_readw
  22
  23 static inline void scr_writew(u16 val, u16 *addr)
  24 {
  25         BUG_ON((long) addr >= 0);
  26
  27         *addr = val;
  28 }
  29
  30 static inline u16 scr_readw(const u16 *addr)
  31 {
  32         BUG_ON((long) addr >= 0);
  33
  34         return *addr;
  35 }
  36
  37 static inline void scr_memsetw(u16 *p, u16 v, unsigned int n)
  38 {
  39         BUG_ON((long) p >= 0);
  40
  41         memset16(p, cpu_to_le16(v), n / 2);
  42 }
  43
  44 static inline void scr_memcpyw(u16 *d, u16 *s, unsigned int n)
  45 {
  46         BUG_ON((long) d >= 0);
  47
  48         memcpy(d, s, n);
  49 }
  50
  51 static inline void scr_memmovew(u16 *d, u16 *s, unsigned int n)
  52 {
  53         BUG_ON((long) d >= 0);
  54
  55         memmove(d, s, n);
  56 }
  57
  58 #define VGA_MAP_MEM(x,s) (x)
  59
  60 #endif