[linux-2.6-block.git] / arch / powerpc / include / asm / vga.h

/* 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_ */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
8b22cc01	2	#ifndef _ASM_POWERPC_VGA_H_
	3	#define _ASM_POWERPC_VGA_H_
	4
	5	#ifdef __KERNEL__
	6
1da177e4 LT	7	/*
	8	* Access to VGA videoram
	9	*
	10	* (c) 1998 Martin Mares <mj@ucw.cz>
1da177e4 LT	11	*/
1da177e4 LT	12
1da177e4 LT	13
	14	#include <asm/io.h>
	15
1da177e4 LT	16
	17	#if defined(CONFIG_VGA_CONSOLE) \|\| defined(CONFIG_MDA_CONSOLE)
	18
	19	#define VT_BUF_HAVE_RW
	20	/*
	21	* These are only needed for supporting VGA or MDA text mode, which use little
	22	* endian byte ordering.
	23	* In other cases, we can optimize by using native byte ordering and
	24	* <linux/vt_buffer.h> has already done the right job for us.
	25	*/
	26
	27	static inline void scr_writew(u16 val, volatile u16 *addr)
	28	{
f5718726	29	*addr = cpu_to_le16(val);
1da177e4 LT	30	}
	31
	32	static inline u16 scr_readw(volatile const u16 *addr)
	33	{
f5718726	34	return le16_to_cpu(*addr);
1da177e4 LT	35	}
1da177e4 LT	36
ac036f95 MW	37	#define VT_BUF_HAVE_MEMSETW
	38	static inline void scr_memsetw(u16 *s, u16 v, unsigned int n)
	39	{
	40	memset16(s, cpu_to_le16(v), n / 2);
	41	}
	42
1da177e4	43	#define VT_BUF_HAVE_MEMCPYW
ac036f95	44	#define VT_BUF_HAVE_MEMMOVEW
1da177e4	45	#define scr_memcpyw memcpy
ac036f95	46	#define scr_memmovew memmove
1da177e4 LT	47
	48	#endif /* !CONFIG_VGA_CONSOLE && !CONFIG_MDA_CONSOLE */
	49
8b22cc01	50	#ifdef __powerpc64__
4f1bcaf0	51	#define VGA_MAP_MEM(x,s) ((unsigned long) ioremap((x), s))
8b22cc01	52	#else
e88f157d	53	#define VGA_MAP_MEM(x,s) (x)
8b22cc01	54	#endif
1da177e4 LT	55
	56	#define vga_readb(x) (*(x))
	57	#define vga_writeb(x,y) (*(y) = (x))
	58
8b22cc01	59	#endif /* __KERNEL__ */
8b22cc01	60	#endif /* _ASM_POWERPC_VGA_H_ */