61 lines
964 B
C
61 lines
964 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Access to VGA videoram
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*
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* (c) 1998 Martin Mares <mj@ucw.cz>
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*/
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#ifndef _LINUX_ASM_VGA_H_
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#define _LINUX_ASM_VGA_H_
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#include <linux/bug.h>
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#include <linux/string.h>
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#include <asm/types.h>
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#define VT_BUF_HAVE_RW
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#define VT_BUF_HAVE_MEMSETW
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#define VT_BUF_HAVE_MEMCPYW
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#define VT_BUF_HAVE_MEMMOVEW
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#undef scr_writew
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#undef scr_readw
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static inline void scr_writew(u16 val, u16 *addr)
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{
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BUG_ON((long) addr >= 0);
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*addr = val;
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}
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static inline u16 scr_readw(const u16 *addr)
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{
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BUG_ON((long) addr >= 0);
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return *addr;
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}
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static inline void scr_memsetw(u16 *p, u16 v, unsigned int n)
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{
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BUG_ON((long) p >= 0);
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memset16(p, cpu_to_le16(v), n / 2);
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}
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static inline void scr_memcpyw(u16 *d, u16 *s, unsigned int n)
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{
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BUG_ON((long) d >= 0);
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memcpy(d, s, n);
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}
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static inline void scr_memmovew(u16 *d, u16 *s, unsigned int n)
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{
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BUG_ON((long) d >= 0);
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memmove(d, s, n);
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}
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#define VGA_MAP_MEM(x,s) (x)
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#endif
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