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60 lines
964 B
60 lines
964 B
/* 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 <[email protected]> |
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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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