61 lines
1.2 KiB
C
Executable file
61 lines
1.2 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_VGA_H_
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#define _ASM_POWERPC_VGA_H_
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#ifdef __KERNEL__
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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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#include <asm/io.h>
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#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
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#define VT_BUF_HAVE_RW
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/*
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* These are only needed for supporting VGA or MDA text mode, which use little
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* endian byte ordering.
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* In other cases, we can optimize by using native byte ordering and
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* <linux/vt_buffer.h> has already done the right job for us.
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*/
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static inline void scr_writew(u16 val, volatile u16 *addr)
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{
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*addr = cpu_to_le16(val);
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}
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static inline u16 scr_readw(volatile const u16 *addr)
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{
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return le16_to_cpu(*addr);
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}
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#define VT_BUF_HAVE_MEMSETW
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static inline void scr_memsetw(u16 *s, u16 v, unsigned int n)
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{
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memset16(s, cpu_to_le16(v), n / 2);
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}
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#define VT_BUF_HAVE_MEMCPYW
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#define VT_BUF_HAVE_MEMMOVEW
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#define scr_memcpyw memcpy
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#define scr_memmovew memmove
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#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
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#ifdef __powerpc64__
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#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s))
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#else
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#define VGA_MAP_MEM(x,s) (x)
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#endif
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#define vga_readb(x) (*(x))
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#define vga_writeb(x,y) (*(y) = (x))
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_VGA_H_ */
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