mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
a100501212
Update the atari fb to 2.6 by Michael Schmitz, Reformatting and rewrite of bit plane functions by Roman Zippel, A few more fixes by Geert Uytterhoeven. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
|
|
* linux/drivers/video/mfb.c -- Low level frame buffer operations for
|
|
* monochrome
|
|
*
|
|
* Created 5 Apr 1997 by Geert Uytterhoeven
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file COPYING in the main directory of this archive for
|
|
* more details.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/string.h>
|
|
#include <linux/fb.h>
|
|
|
|
#include "atafb.h"
|
|
#include "atafb_utils.h"
|
|
|
|
|
|
/*
|
|
* Monochrome
|
|
*/
|
|
|
|
void atafb_mfb_copyarea(struct fb_info *info, u_long next_line,
|
|
int sy, int sx, int dy, int dx,
|
|
int height, int width)
|
|
{
|
|
u8 *src, *dest;
|
|
u_int rows;
|
|
|
|
if (sx == 0 && dx == 0 && width == next_line) {
|
|
src = (u8 *)info->screen_base + sy * (width >> 3);
|
|
dest = (u8 *)info->screen_base + dy * (width >> 3);
|
|
fb_memmove(dest, src, height * (width >> 3));
|
|
} else if (dy <= sy) {
|
|
src = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
|
|
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
|
|
for (rows = height; rows--;) {
|
|
fb_memmove(dest, src, width >> 3);
|
|
src += next_line;
|
|
dest += next_line;
|
|
}
|
|
} else {
|
|
src = (u8 *)info->screen_base + (sy + height - 1) * next_line + (sx >> 3);
|
|
dest = (u8 *)info->screen_base + (dy + height - 1) * next_line + (dx >> 3);
|
|
for (rows = height; rows--;) {
|
|
fb_memmove(dest, src, width >> 3);
|
|
src -= next_line;
|
|
dest -= next_line;
|
|
}
|
|
}
|
|
}
|
|
|
|
void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color,
|
|
int sy, int sx, int height, int width)
|
|
{
|
|
u8 *dest;
|
|
u_int rows;
|
|
|
|
dest = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
|
|
|
|
if (sx == 0 && width == next_line) {
|
|
if (color)
|
|
fb_memset255(dest, height * (width >> 3));
|
|
else
|
|
fb_memclear(dest, height * (width >> 3));
|
|
} else {
|
|
for (rows = height; rows--; dest += next_line) {
|
|
if (color)
|
|
fb_memset255(dest, width >> 3);
|
|
else
|
|
fb_memclear_small(dest, width >> 3);
|
|
}
|
|
}
|
|
}
|
|
|
|
void atafb_mfb_linefill(struct fb_info *info, u_long next_line,
|
|
int dy, int dx, u32 width,
|
|
const u8 *data, u32 bgcolor, u32 fgcolor)
|
|
{
|
|
u8 *dest;
|
|
u_int rows;
|
|
|
|
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
|
|
|
|
for (rows = width / 8; rows--; /* check margins */ ) {
|
|
// use fast_memmove or fb_memmove
|
|
*dest++ = *data++;
|
|
}
|
|
}
|
|
|
|
#ifdef MODULE
|
|
MODULE_LICENSE("GPL");
|
|
|
|
int init_module(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void cleanup_module(void)
|
|
{
|
|
}
|
|
#endif /* MODULE */
|
|
|
|
|
|
/*
|
|
* Visible symbols for modules
|
|
*/
|
|
|
|
EXPORT_SYMBOL(atafb_mfb_copyarea);
|
|
EXPORT_SYMBOL(atafb_mfb_fillrect);
|
|
EXPORT_SYMBOL(atafb_mfb_linefill);
|