61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef _ASM_POWERPC_VGA_H_
|
||
|
|
#define _ASM_POWERPC_VGA_H_
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Access to VGA videoram
|
||
|
|
*
|
||
|
|
* (c) 1998 Martin Mares <mj@ucw.cz>
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
|
||
|
|
#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_MDA_CONSOLE)
|
||
|
|
|
||
|
|
#define VT_BUF_HAVE_RW
|
||
|
|
/*
|
||
|
|
* These are only needed for supporting VGA or MDA text mode, which use little
|
||
|
|
* endian byte ordering.
|
||
|
|
* In other cases, we can optimize by using native byte ordering and
|
||
|
|
* <linux/vt_buffer.h> has already done the right job for us.
|
||
|
|
*/
|
||
|
|
|
||
|
|
static inline void scr_writew(u16 val, volatile u16 *addr)
|
||
|
|
{
|
||
|
|
*addr = cpu_to_le16(val);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline u16 scr_readw(volatile const u16 *addr)
|
||
|
|
{
|
||
|
|
return le16_to_cpu(*addr);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define VT_BUF_HAVE_MEMSETW
|
||
|
|
static inline void scr_memsetw(u16 *s, u16 v, unsigned int n)
|
||
|
|
{
|
||
|
|
memset16(s, cpu_to_le16(v), n / 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define VT_BUF_HAVE_MEMCPYW
|
||
|
|
#define VT_BUF_HAVE_MEMMOVEW
|
||
|
|
#define scr_memcpyw memcpy
|
||
|
|
#define scr_memmovew memmove
|
||
|
|
|
||
|
|
#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
|
||
|
|
|
||
|
|
#ifdef __powerpc64__
|
||
|
|
#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s))
|
||
|
|
#else
|
||
|
|
#define VGA_MAP_MEM(x,s) (x)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define vga_readb(x) (*(x))
|
||
|
|
#define vga_writeb(x,y) (*(y) = (x))
|
||
|
|
|
||
|
|
#endif /* __KERNEL__ */
|
||
|
|
#endif /* _ASM_POWERPC_VGA_H_ */
|